Rotor flow meter convenient to clean

Abstract

The utility model discloses a rotor flow meter convenient to clean, and belongs to the technical field of rotor flow meters, the rotor flow meter convenient to clean comprises a rotor flow meter body and a measuring rotor installed on the inner side of the rotor flow meter body, and the outer wall of the bottom end of the rotor flow meter body is fixedly connected with a connecting plate. The side wall of the connecting plate is provided with a containing cavity communicated with an inner cavity of the rotor flow meter body, the inner side of the containing cavity is detachably connected with a sleeve shell, the top end of the sleeve shell is provided with a liquid outlet, a filter screen is installed on the inner side of the liquid outlet, the bottom end of the sleeve shell is detachably connected with an end cover, and the end cover is provided with a liquid outlet. The elastic acting force of the spring can be utilized to enable the baffle to block the liquid inlet hole, filter residues intercepted by the filter screen are stored on the inner side of the sleeve shell, the handle is matched with the connecting block to pull the sleeve shell out of the containing cavity formed in the connecting plate, then the end cover is detached, and the filter residues are conveniently cleaned. And filter residues can be effectively prevented from remaining in the rotor flow meter body.

Description

Technical Field

[0001] The utility model relates to the technical field of rotor flowmeters, and more specifically to a rotor flowmeter which is easy to clean. Background Art

[0002] The rotor flowmeter measures fluid flow based on the throttling principle, but it changes the flow area of ​​the fluid to keep the differential pressure above and below the rotor constant, so it is also called a variable flow area constant differential pressure flowmeter, also known as a float flowmeter.

[0003] Patent document publication number CN211717521U discloses a rotor flowmeter. The above patent filters impurities through a filter screen during use, but the first side plate and the second side plate need to be disassembled after filtering, which makes it inconvenient to quickly remove impurities on the filter screen during use, affecting the normal use of the rotor flowmeter. An existing patent discloses a rotor flowmeter with patent authorization number CN 219495320 U. The first connecting pipe, the second connecting pipe and the third connecting pipe are provided, so that the liquid can flow inside the glass tube, and the liquid flow rate is detected in cooperation with the rotor mechanism. The threaded connection of the threaded rod and the threaded hole can enable the threaded rod to cooperate with the positioning hole to release the positioning of the control panel, so that the staff can pull the sealing plate and the filter screen out of the stepped groove, which is convenient for cleaning the filter screen, and solves the problem that it is inconvenient to quickly remove impurities on the filter screen during use, affecting the normal use of the rotor flowmeter.

[0004] However, in the patent authorization number CN 219495320 U, the staff pulls the pull ring to drive the control plate, the control plate drives the sealing plate to move, the sealing plate drives the filter to move, the filter is taken out, and the filter is cleaned. Since the impurities are located on one side of the filter when the filter is intercepting impurities, the trapped impurities cannot be completely removed after the filter is taken out, and some of them will continue to remain on the inner side of the step groove, which is not convenient for cleaning. Therefore, we propose a rotor flowmeter that is easy to clean to solve the above-mentioned problems. Utility Model Content

[0005] 1. Technical issues to be solved

[0006] In view of the problems existing in the prior art, the purpose of the utility model is to provide a rotor flowmeter that is easy to clean. It can use the elastic force of the spring to block the liquid inlet hole with a baffle, and the filter residue retained by the filter screen is stored on the inner side of the casing. The casing is pulled out of the storage cavity opened at the connecting plate by using a handle and a connecting block, and then the end cover is removed to facilitate the cleaning of the filter residue, which can effectively prevent the filter residue from remaining in the rotor flowmeter body.

[0007] 2. Technical solution

[0008] To solve the above problems, the utility model adopts the following technical solutions.

[0009] A rotor flowmeter that is easy to clean, comprising a rotor flowmeter body and a measuring rotor installed inside the rotor flowmeter body, a connecting plate is fixedly connected to the outer wall of the bottom end of the rotor flowmeter body, and a receiving cavity that is conductively connected to the inner cavity of the rotor flowmeter body is formed on the side wall of the connecting plate;

[0010] The inner side of the storage cavity is detachably connected with a casing, the top of the casing is provided with a liquid outlet, a filter screen is installed on the inner side of the liquid outlet, the bottom of the casing is detachably connected with an end cover, the middle of the end cover is provided with a liquid inlet, a baffle is installed above the top of the liquid inlet, a spring is arranged below the filter screen, the top of the spring is connected to the top wall of the inner cavity of the casing, and the bottom of the spring is connected to the upper surface of the baffle;

[0011] A connecting block is installed on the outer wall of the casing close to the port of the receiving cavity, and a handle located outside the receiving cavity is installed on the outer wall of the connecting block away from the casing.

[0012] Furthermore, a boss in an annular structure is integrally formed at the root of the inner cavity of the sleeve, and a threaded hole is provided on the surface of the boss.

[0013] Furthermore, an assembly hole corresponding to the threaded hole is formed on the edge of the end cover.

[0014] Furthermore, the top and bottom edges of the sleeve are both inlaid with sealing rubber rings, and the sealing rubber rings are respectively in contact with the top wall and the bottom wall of the storage cavity.

[0015] Furthermore, a countersunk hole is provided at the top edge of the connecting plate, and a countersunk screw with a bottom end extending to the inner side of the receiving cavity is installed on the inner side of the countersunk hole.

[0016] Furthermore, a screw hole which is screwed to the bottom end of the countersunk screw is formed on the upper surface of the connecting block.

[0017] Furthermore, the outer wall of the handle is provided with a rubber sleeve, and the outer wall of the rubber sleeve is provided with anti-slip patterns.

[0018] 3. Beneficial effects

[0019] Compared with the prior art, the advantages of the present invention are:

[0020] (1) In this scheme, during the process of detecting the flow rate of the liquid by the rotor flowmeter body, under the action of the liquid flow pressure, a gap is provided between the baffle and the end cover for the liquid to flow, and the spring is in a compressed and deformed state. When it is necessary to clean the filter residue retained by the filter screen, the flow channel of the liquid is disconnected, so that the elastic force of the spring is used to block the liquid inlet hole, and the filter residue retained by the filter screen is stored on the inner side of the casing. The casing is pulled out of the storage cavity opened at the connecting plate by using the handle and the connecting block, and then the end cover is disassembled to facilitate the cleaning of the filter residue, which can effectively prevent the filter residue from remaining in the rotor flowmeter body.

[0021] (2) In this solution, after the sleeve is placed inside the storage cavity, the screw holes on the upper surface of the connecting block correspond to the countersunk holes provided on the connecting plate, and then the countersunk screws are passed through the countersunk holes and screwed to the screw holes, so as to facilitate the fixing of the connecting block, thereby effectively preventing the sleeve from escaping from the storage cavity and having a good positioning effect on the sleeve. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 It is a three-dimensional structural schematic diagram of the utility model;

[0023] Figure 2 It is a side view schematic diagram of the utility model;

[0024] Figure 3 It is a schematic cross-sectional view of the AA part of the utility model;

[0025] Figure 4 It is an enlarged schematic diagram of part A of the utility model;

[0026] Figure 5 It is a schematic side view of the rotor flowmeter body of the utility model;

[0027] Figure 6 It is a schematic cross-sectional view of the BB part of the utility model;

[0028] Figure 7 This is a schematic diagram of the end cover structure of the utility model;

[0029] Figure 8 It is a schematic diagram of the boss structure of the utility model.

[0030] Description of the numbers in the figure:

[0031] 1. Rotor flowmeter body; 2. Measuring rotor; 3. Connecting plate; 4. Storage chamber; 5. Housing; 6. Liquid outlet; 7. Filter; 8. Boss; 9. Spring; 10. Baffle; 11. End cover; 12. Liquid inlet; 13. Connecting block; 14. Sealing rubber ring; 15. Handle; 16. Screw hole; 17. Countersunk screw. DETAILED DESCRIPTION

[0032] The technical solutions in the embodiments of the utility model will be clearly and completely described below in conjunction with the drawings in the embodiments of the utility model; it is obvious that the described embodiments are only part of the embodiments of the utility model, rather than all of the embodiments, and all other embodiments obtained by ordinary technicians in this field based on the embodiments of the utility model without making creative work are within the scope of protection of the utility model.

[0033] Example:

[0034] See also Figure 1-8 A rotor flowmeter that is easy to clean, comprising a rotor flowmeter body 1 and a measuring rotor 2 installed inside the rotor flowmeter body 1, a connecting plate 3 is fixedly connected to the outer wall of the bottom end of the rotor flowmeter body 1, and a receiving cavity 4 is opened on the side wall of the connecting plate 3 and is connected to the inner cavity of the rotor flowmeter body 1;

[0035] The inner side of the receiving cavity 4 is detachably connected with a casing 5, a liquid outlet 6 is provided at the top of the casing 5, a filter screen 7 is installed on the inner side of the liquid outlet 6, an end cover 11 is detachably connected to the bottom end of the casing 5, a liquid inlet 12 is provided in the middle of the end cover 11, a baffle 10 is installed above the top of the liquid inlet 12, a spring 9 is arranged below the filter screen 7, the top end of the spring 9 is connected to the top wall of the inner cavity of the casing 5, and the bottom end of the spring 9 is connected to the upper surface of the baffle 10;

[0036] A connection block 13 is installed on the outer wall of the casing 5 close to the end of the storage chamber 4, and a handle 15 located outside the storage chamber 4 is installed on the outer wall of the connection block 13 away from the casing 5;

[0037] It should be noted that, during the process of detecting the flow rate of the liquid by the rotor flowmeter body 1, under the action of the liquid flow pressure, there is a gap between the baffle 10 and the end cover 11 for the liquid to flow, and the spring 9 is in a compressed and deformed state. When it is necessary to clean the filter residue retained by the filter screen 7, the flow channel of the liquid is disconnected, so that the elastic force of the spring 9 is used to block the liquid inlet 12 with the baffle 10, and the filter residue retained by the filter screen 7 is stored on the inner side of the casing 5. The casing 5 is pulled out of the storage cavity 4 opened at the connecting plate 3 by using the handle 15 and the connecting block 13, and then the end cover 11 is disassembled to facilitate the cleaning of the filter residue, which can effectively prevent the filter residue from remaining in the rotor flowmeter body 1.

[0038] like Figure 7 , Figure 8 As shown, the inner cavity root of the sleeve 5 is integrally formed with a boss 8 in an annular structure, and a threaded hole is opened on the surface of the boss 8, and an assembly hole corresponding to the threaded hole is opened on the edge of the end cover 11;

[0039] It should be noted that the assembly hole provided at the end cover 11 corresponds to the threaded hole provided at the boss 8 , and then a screw is passed through the assembly hole and screwed to the threaded hole, so as to facilitate the disassembly and assembly of the end cover 11 .

[0040] like Figure 4 , Figure 7 As shown, the top and bottom edges of the casing 5 are both inlaid with sealing rubber rings 14, and the sealing rubber rings 14 are respectively in contact with the top wall and bottom wall of the storage cavity 4;

[0041] It should be noted that the gap between the casing 5 and the receiving chamber 4 is filled by the sealing rubber ring 14 , thereby effectively preventing the liquid from leaking through the receiving chamber 4 .

[0042] like Figure 3 , Figure 6 , Figure 7 As shown, a countersunk hole is provided at the top edge of the connecting plate 3, and a countersunk screw 17 with the bottom end extending to the inside of the receiving cavity 4 is installed inside the countersunk hole, and a screw hole 16 is provided on the upper surface of the connecting block 13 to be screwed to the bottom end of the countersunk screw 17;

[0043] It should be noted that after the shell 5 is placed inside the storage chamber 4, the screw hole 16 opened on the upper surface of the connecting block 13 corresponds to the countersunk hole set on the connecting plate 3, and then the countersunk screw 17 passes through the countersunk hole and is screwed to the screw hole 16, which is convenient for fixing the connecting block 13, thereby effectively preventing the shell 5 from escaping from the storage chamber 4, and having a good positioning effect on the shell 5.

[0044] like Figure 1 As shown, the outer wall of the handle 15 is provided with a rubber sleeve, and the outer wall of the rubber sleeve is provided with anti-slip patterns;

[0045] It should be noted that the friction between the hand and the handle 15 can be increased, so as to facilitate the use of the handle 15 to drag the housing 5 to move.

[0046] During use: During the process of detecting the flow rate of the liquid by the rotor flowmeter body 1, under the action of the liquid flow pressure, there is a gap between the baffle 10 and the end cover 11 for the liquid to flow, and the spring 9 is in a compressed and deformed state. When it is necessary to clean the filter residue retained by the filter screen 7, the flow channel of the liquid is disconnected, so that the elastic force of the spring 9 is used to make the baffle 10 block the liquid inlet 12, and the filter residue retained by the filter screen 7 is stored on the inner side of the casing 5. The casing 5 is pulled out of the storage cavity 4 opened at the connecting plate 3 by using the handle 15 and the connecting block 13, and then the end cover 11 is disassembled to facilitate the cleaning of the filter residue.

[0047] The above is only a preferred specific implementation of the utility model; however, the protection scope of the utility model is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes according to the technical solution and improved ideas of the utility model within the technical scope disclosed by the utility model, which should be included in the protection scope of the utility model.

Claims

1. A rotor flowmeter that is easy to clean, comprising a rotor flowmeter body (1) and a measuring rotor (2) installed inside the rotor flowmeter body (1), characterized in that: A connecting plate (3) is fixedly connected to the outer wall of the bottom end of the rotor flowmeter body (1), and a receiving cavity (4) is provided on the side wall of the connecting plate (3) and is conductively connected to the inner cavity of the rotor flowmeter body (1); The inner side of the storage cavity (4) is detachably connected to a casing (5), the top end of the casing (5) is provided with a liquid outlet (6), the inner side of the liquid outlet (6) is provided with a filter screen (7), the bottom end of the casing (5) is detachably connected to an end cover (11), the middle part of the end cover (11) is provided with a liquid inlet hole (12), a baffle (10) is installed above the top of the liquid inlet hole (12), a spring (9) is arranged below the filter screen (7), the top end of the spring (9) is connected to the top wall of the inner cavity of the casing (5), and the bottom end of the spring (9) is connected to the upper surface of the baffle (10); A connection block (13) is installed on the outer wall of the casing (5) close to the port of the storage chamber (4), and a handle (15) located outside the storage chamber (4) is installed on the outer wall of the connection block (13) away from the casing (5).

2. A rotor flowmeter that is easy to clean according to claim 1, characterized in that: A boss (8) in an annular structure is integrally formed at the root of the inner cavity of the sleeve (5), and a threaded hole is provided on the surface of the boss (8).

3. A rotor flowmeter that is easy to clean according to claim 2, characterized in that: The edge of the end cover (11) is provided with an assembly hole corresponding to the threaded hole.

4. The rotor flowmeter that is easy to clean according to claim 1, characterized in that: The top and bottom edges of the casing (5) are both inlaid with sealing rubber rings (14), and the sealing rubber rings (14) are respectively in contact with the top wall and bottom wall of the storage cavity (4).

5. The rotor flowmeter that is easy to clean according to claim 1, characterized in that: A countersunk hole is provided at the top edge of the connecting plate (3), and a countersunk screw (17) with a bottom end extending to the inside of the receiving cavity (4) is installed inside the countersunk hole.

6. The rotor flowmeter that is easy to clean according to claim 5, characterized in that: The upper surface of the connection block (13) is provided with a screw hole (16) which is screwed to the bottom end of the countersunk screw (17).

7. The rotor flowmeter that is easy to clean according to claim 1, characterized in that: The outer wall of the handle (15) is provided with a rubber sleeve, and the outer wall of the rubber sleeve is provided with anti-slip patterns.

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