Rotor flow meter with protection function

Abstract

The rotor flow meter with the protection function comprises a flow meter body, an air inlet nozzle and an air outlet nozzle are arranged at the top and the bottom of the back face of the flow meter body respectively, a protection back plate is arranged on the back face of the flow meter body, and protection mechanisms used for protecting the front face of the flow meter body are hinged to the front faces of the two sides of the protection back plate. The protection mechanism comprises a first protection plate and a second protection plate which are hinged and enclosed, and a fastener is arranged at the joint of the first protection plate and the second protection plate. The protection back plate is arranged on the back face of the flow meter body, and then the protection mechanisms hinged to the front faces of the two sides of the protection back plate are used for protecting the flow meter body, so that the flow meter body is protected under the surrounding protection effect of the first protection plate and the second protection plate; the first protection plate and the second protection plate can form surrounding protection under the condition that the flow meter main body is not used for observation, so that the observation area of the flow meter main body can be protected.

Description

Technical Field

[0001] The utility model relates to the field of flow meters, in particular to a rotor flow meter with a protection function. Background Art

[0002] The main measuring element of the glass rotor flowmeter is a vertically mounted tapered glass tube with a small bottom and a large top and a float that can move up and down inside. There is a proportional relationship between the flow rate of the fluid flowing through the glass rotor flowmeter and the height of the float rise, that is, the flow area of ​​the glass rotor flowmeter. The height of the float can be used as a flow measurement.

[0003] The central part of the existing glass rotor flowmeter is set as an observation area, so it is wrapped with transparent glass or transparent plastic material. Such a structure causes the central area of ​​the flowmeter to be exposed for a long time when the entire rotor flowmeter is not in use. In the absence of protection, the flowmeter lacks protection, resulting in the risk of damage to the central area of ​​the flowmeter. Utility Model Content

[0004] The purpose of the utility model is to provide a rotor flowmeter with a protection function to solve the problems raised in the above background technology.

[0005] To achieve the above-mentioned objectives, the utility model provides the following technical solutions: a rotor flowmeter with a protective function, comprising a flowmeter body, wherein an air inlet nozzle and an air outlet nozzle are respectively arranged at the top and bottom of the back side of the flowmeter body, a protective back plate is arranged at the back side of the flowmeter body, and protective mechanisms for protecting the front side of the flowmeter body are hingedly provided on the front sides of the protective back plate, wherein the protective mechanisms comprise a first protective plate and a second protective plate hingedly surrounded, and a fastener is arranged at the connection between the first protective plate and the second protective plate.

[0006] Preferably, a dial for observing flow readings is provided on the front of the flow meter body, and a calibration knob is provided at the bottom of the front of the flow meter body.

[0007] Preferably, connecting slots are provided on both sides of the protective back plate, and the connecting slots are provided with rotating parts for hingedly connecting the first protective plate and the second protective plate.

[0008] Preferably, the rotating member comprises:

[0009] Supporting rotating rods, wherein a plurality of said supporting rotating rods are respectively fixedly connected between the inner walls at the top and bottom ends of the plurality of connecting slots in the vertical direction;

[0010] A connecting sleeve, wherein the multiple connecting sleeves are rotatably sleeved on the outer walls of the multiple supporting rotating rods respectively, the outer walls of the multiple connecting sleeves are fixedly connected with connecting strips, and the multiple connecting strips are fixedly connected to the sides of the first protective plate and the second protective plate respectively.

[0011] Preferably, the fastener comprises:

[0012] A connection slot, wherein a plurality of the connection slots are all provided at an end of the first protective plate away from the protective back plate;

[0013] The connecting plug blocks are fixedly connected to one end of the second protective plate away from the protective back plate, and the connecting plug blocks are respectively connected to the connecting slots in a one-to-one correspondence.

[0014] Preferably, the top and bottom ends of the plurality of connecting plugs are provided with pressing blocks for enhancing connectivity with the connecting slots.

[0015] Technical effects and advantages of the utility model:

[0016] The utility model firstly arranges a protective back plate on the back of the flow meter body, and then utilizes the protective mechanism hinged on the front sides of the back plate to protect the flow meter body, so that under the enclosing protection of the first protective plate and the second protective plate, the first protective plate and the second protective plate can form an enclosing protection when the flow meter body is not observed and used, thereby completing the protection of the observation area of ​​the flow meter body. BRIEF DESCRIPTION OF THE DRAWINGS

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

[0018] Figure 2 It is a front view of the overall structure of the utility model.

[0019] Figure 3 It is a structural side view of the entire utility model.

[0020] In the figure: 1. flow meter body; 101. protective back plate; 102. connecting notch; 103. dial; 2. air inlet nozzle; 3. air outlet nozzle; 4. calibration knob; 5. first protective plate; 501. connecting slot; 6. second protective plate; 601. connecting plug; 602. pressure block; 7. supporting rotating rod; 8. connecting sleeve; 801. connecting strip. DETAILED DESCRIPTION

[0021] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0022] The utility model provides Figure 1-3A rotor flowmeter with a protective function is shown, comprising a flowmeter body 1, an air inlet nozzle 2 and an air outlet nozzle 3 are respectively arranged at the top and bottom of the back side of the flowmeter body 1, a dial 103 for observing the flow reading is arranged at the front side of the flowmeter body 1, and a calibration knob 4 is arranged at the bottom of the front side of the flowmeter body 1.

[0023] The flow meter body 1 designed in this scheme is a glass rotor flow meter. The main measuring element of the glass rotor flow meter is a vertically installed tapered glass tube with a small bottom and a large top and a float that can move up and down inside. When the fluid passes through the tapered glass tube from bottom to top, a pressure difference is generated between the top and bottom of the float, and the float rises under the action of this differential pressure. When the rising force, the buoyancy and viscous lift of the float are equal to the gravity of the float, the float is in a balanced position. Through the structural setting of the air inlet nozzle 2 and the air outlet nozzle 3, the measured gas passes through the middle of the flow meter body 1. Under the action of the pressure difference, the float moves to measure the flow rate.

[0024] A protective back plate 101 is provided on the back of the flow meter body 1, and protective mechanisms for protecting the front of the flow meter body 1 are hinged on the front of both sides of the protective back plate 101. The protective mechanism includes a first protective plate 5 and a second protective plate 6 hingedly surrounded, and fasteners are provided at the connection between the first protective plate 5 and the second protective plate 6.

[0025] Specifically, the fasteners include:

[0026] A connection slot 501, wherein the plurality of connection slots 501 are all disposed at an end of the first protection plate 5 away from the protection back plate 101;

[0027] The connection plug-in blocks 601 , wherein the plurality of connection plug-in blocks 601 are all fixedly connected to one end of the second protective plate 6 away from the protective back plate 101 , and the plurality of connection plug-in blocks 601 are respectively connected and inserted with the plurality of connection slots 501 in a one-to-one correspondence.

[0028] Furthermore, the top and bottom ends of the plurality of connection plug-ins 601 are provided with pressing blocks 602 for enhancing connectivity with the connection slots 501 .

[0029] It should be noted that the connection slot 501 and the connection plug-in block 601 are respectively arranged in the vertical direction along one end of the first protective plate 5 and the second protective plate 6, and the connection slot 501 corresponds to the connection plug-in block 601 in the horizontal direction. Since the first protective plate 5 and the second protective plate 6 are both angled plate structures, the connection plug-in block 601 is rotated and plugged into the connection slot 501 when the two are enclosed, so that the first protective plate 5 and the second protective plate 6 are enclosed and spliced. In this solution, a pressure block 602 is additionally provided. The pressure block 602 can adopt a flexible rebound structure such as a sponge block. In this way, when the connection slot 501 and the connection plug-in block 601 are plugged in, the plug-in deformation of the pressure block 602 in the connection slot 501 can be utilized to make the connection between the connection slot 501 and the connection plug-in block 601 tighter.

[0030] Specifically, connection slots 102 are provided on both sides of the protective back plate 101 , and the connection slots 102 are provided with rotating parts for hingedly connecting the first protective plate 5 and the second protective plate 6 .

[0031] Furthermore, the rotating member comprises:

[0032] Supporting rotating rods 7, wherein the plurality of supporting rotating rods 7 are respectively fixedly connected between the inner walls of the top and bottom ends of the plurality of connecting slots 102 in the vertical direction;

[0033] The connecting sleeves 8 are rotatably sleeved on the outer walls of the supporting rotating rods 7 respectively, and the outer walls of the connecting sleeves 8 are fixedly connected with connecting strips 801, and the connecting strips 801 are fixedly connected with the sides of the first protective plate 5 and the second protective plate 6 respectively.

[0034] It should be noted that, through the rotating sleeve connection between the connecting sleeve 8 and the supporting rotating rod 7, the connecting strip 801 is used to connect the rotating structure with the first protective plate 5 and the second protective plate 6, so that the first protective plate 5 and the second protective plate 6 can be rotated and opened and closed. When the two are closed, they provide surrounding protection, and when the two are opened, the measurement data of the flow meter body 1 can be observed.

[0035] Finally, it should be noted that the above is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A rotor flowmeter with a protective function, comprising a flowmeter body (1), wherein the top and bottom of the back of the flowmeter body (1) are respectively provided with an air inlet nozzle (2) and an air outlet nozzle (3), characterized in that: A protective back plate (101) is provided on the back of the flow meter body (1), and protective mechanisms for protecting the front of the flow meter body (1) are hingedly connected on the front of both sides of the protective back plate (101), the protective mechanisms comprising a first protective plate (5) and a second protective plate (6) hingedly surrounded, and a fastener is provided at the connection between the first protective plate (5) and the second protective plate (6).

2. A rotor flowmeter with protection function according to claim 1, characterized in that: The front of the flow meter body (1) is provided with a dial (103) for observing flow readings, and the bottom of the front of the flow meter body (1) is provided with a calibration knob (4).

3. A rotor flowmeter with a protection function according to claim 1, characterized in that: Both sides of the protective back plate (101) are provided with connection slots (102), and the connection slots (102) are provided with rotating parts for hingedly connecting the first protective plate (5) and the second protective plate (6).

4. A rotor flowmeter with protection function according to claim 3, characterized in that: The rotating member comprises: a supporting rotating rod (7), wherein a plurality of the supporting rotating rods (7) are respectively fixedly connected between the inner walls at the top and bottom ends of a plurality of connecting slots (102) in a vertical direction; and a connecting sleeve (8), wherein a plurality of the connecting sleeves (8) are respectively rotatably sleeved on the outer walls of the plurality of supporting rotating rods (7), and the outer walls of the plurality of the connecting sleeves (8) are all fixedly connected with connecting strips (801), and the plurality of connecting strips (801) are respectively fixedly connected to the sides of the first protective plate (5) and the second protective plate (6).

5. The rotor flowmeter with protection function according to claim 1, characterized in that: The fastener comprises: a connection slot (501), wherein a plurality of the connection slots (501) are all opened at one end of the first protective plate (5) away from the protective back plate (101); and a connection plug block (601), wherein a plurality of the connection plug blocks (601) are all fixedly connected to one end of the second protective plate (6) away from the protective back plate (101), and the plurality of connection plug blocks (601) are respectively connected to the plurality of connection slots (501) in a one-to-one correspondence.

6. A rotor flowmeter with protection function according to claim 5, characterized in that: The top and bottom ends of the plurality of connection plug blocks (601) are each provided with a pressing block (602) for enhancing connectivity with the connection slot (501).

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