Differential pressure type flowmeter convenient to maintain

Abstract

The utility model relates to the technical field of differential pressure type flow meters, and discloses a differential pressure type flow meter convenient to maintain, which comprises a flow meter body and a fixing plate, a protective box is fixedly arranged on the outer surface of the flow meter body, and two connecting seats are fixedly arranged on the outer surface of the protective box. The differential pressure type flowmeter convenient to maintain comprises two connecting bases, the outer surfaces of the two connecting bases are rotationally connected with screw rods, the outer surfaces of the two screw rods are in threaded connection with screw blocks, two limiting grooves are formed in each connecting base, and supporting columns are fixedly installed on the outer surfaces of the two screw blocks through the two limiting grooves. The flow meter body is protected through the protection box, then the two screws are controlled to rotate, the screw blocks are driven to slide along the limiting grooves, the protection box is supported by the supporting columns, and therefore the effects that the flow meter body is prevented from being in a suspended state, and the situation that the flow meter is greatly affected by the environment, so that the protection performance is poor, and maintenance is difficult are reduced are achieved.

Description

Technical Field

[0001] The utility model relates to the technical field of differential pressure flowmeters, in particular to a differential pressure flowmeter which is easy to maintain. Background Art

[0002] The differential pressure flowmeter is a flow calculation device that uses the principle that there is a certain relationship between the pressure difference and the flow rate when the fluid flows through the throttling device, and realizes flow measurement by measuring the pressure difference. The throttling device is a local contraction element installed in the pipeline. The most commonly used ones are orifice plates, nozzles and venturi tubes. They can measure the flow of gas, steam, liquid and natural gas. They are widely used in the fields of petroleum, chemical industry, metallurgy, electricity, heating, water supply, etc., and are generally connected to the transmission pipeline through flanges.

[0003] At present, differential pressure flow meters are often installed outside and are greatly affected by the environment, resulting in poor protection and difficult maintenance. At the same time, differential pressure flow meters are often suspended in the air and have poor supporting force. Utility Model Content

[0004] In view of the shortcomings of the prior art, the utility model provides a differential pressure flow meter that is easy to maintain, so as to solve the problems mentioned in the above background technology that the current differential pressure flow meter is often set outside, which is greatly affected by the environment, resulting in poor protection and difficult maintenance; at the same time, the differential pressure flow meter is often in a suspended state and has poor supporting force.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a differential pressure flowmeter that is easy to maintain, comprising a flowmeter body and a fixed plate, a protective box fixedly installed on the outer surface of the flowmeter body, two connecting seats fixedly installed on the outer surface of the protective box, the outer surfaces of the two connecting seats are rotatably connected with screws, the outer surfaces of the two screws are threadedly connected with screw blocks, two limiting grooves are arranged inside the two connecting seats, and the two screw blocks are fixedly installed with support columns through the outer surfaces of the two limiting grooves.

[0006] Preferably, a telescopic rod and a shock absorbing spring are fixedly installed on the outer surface of the two support columns away from the screw block, and the telescopic rod is arranged in the middle of the shock absorbing spring, and the output ends of the telescopic rod and the shock absorbing spring are fixedly connected to the outer surface of the fixing plate.

[0007] Preferably, a protective door is rotatably connected to the outer surface of the protective box, and an observation window is provided on the outer surface of the protective door.

[0008] Preferably, the two connection seats are arranged on both sides of the protection box, and the two connection seats are fixedly connected to the outer surface of the flow meter body.

[0009] Preferably, outer surfaces of the two support columns are slidably connected to the inner surface of the connecting seat, and control handles are fixedly mounted on outer surfaces of the two screw rods away from the fixing plate.

[0010] Preferably, the outer surface of the fixing plate is movably connected to the outer surfaces of the connecting seat and the protective box.

[0011] Compared with the prior art, the beneficial effects of the utility model are:

[0012] 1. The differential pressure flowmeter which is easy to maintain protects the flowmeter body through a protective box, and then controls the two screws to rotate, driving the screw block to slide along the limit groove, so that the support column supports the protective box, thereby preventing the flowmeter body from being in a suspended state, reducing the flowmeter from being greatly affected by the environment, resulting in poor protection and difficult maintenance.

[0013] 2. The differential pressure flowmeter which is easy to maintain is characterized by having a telescopic rod and a shock-absorbing spring fixedly installed on the outer surface of two support columns away from the screw block. At the same time, the telescopic rod is arranged in the middle of the shock-absorbing spring, and the output ends of the telescopic rod and the shock-absorbing spring are fixedly connected to the outer surface of the fixed plate, thereby achieving the effect of improving the seismic resistance of the equipment when the support columns are supporting. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 This is a front cross-sectional schematic diagram of the structure of the utility model;

[0015] Figure 2 This is a schematic diagram of the front view of the structure of the utility model;

[0016] Figure 3 It is a top view schematic diagram of the structure of the utility model;

[0017] Figure 4 It is a schematic side sectional view of the structure of the utility model.

[0018] In the figure: 1. flow meter body; 2. protection box; 3. connecting seat; 4. screw; 5. control handle; 6. screw block; 7. limit groove; 8. support column; 9. telescopic rod; 10. shock-absorbing spring; 11. fixing plate; 12. protection door; 13. observation window. DETAILED DESCRIPTION

[0019] 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.

[0020] Embodiment 1:

[0021] Please refer to Figure 1-4 ,

[0022] A differential pressure flowmeter which is easy to maintain comprises a flowmeter body 1 and a fixing plate 11. A protection box 2 is fixedly mounted on the outer surface of the flowmeter body 1. Two connecting seats 3 are fixedly mounted on the outer surface of the protection box 2. The outer surfaces of the two connecting seats 3 are rotatably connected with screw rods 4. The outer surfaces of the two screw rods 4 are threadedly connected with screw blocks 6. Two limiting grooves 7 are arranged inside the two connecting seats 3. Support columns 8 are fixedly mounted on the outer surfaces of the two limiting grooves 7 on the two screw blocks 6.

[0023] Specifically, the flow meter body 1 is protected by the protection box 2, and then the two screws 4 are controlled to rotate, driving the screw block 6 to slide along the limit groove 7, so that the support column 8 supports the protection box 2, thereby preventing the flow meter body 1 from being in a suspended state, reducing the flow meter from being greatly affected by the environment, resulting in poor protection and difficult maintenance.

[0024] In the embodiment: the outer surface of the protection box 2 is rotatably connected with a protection door 12 , and the outer surface of the protection door 12 is provided with an observation window 13 .

[0025] Specifically, a protection door 12 is rotatably connected to the outer surface of the protection box 2, and an observation window 13 is provided on the outer surface of the protection door 12 to facilitate direct observation of the flow meter.

[0026] In the embodiment, two connection seats 3 are arranged on both sides of the protection box 2 , and the two connection seats 3 are fixedly connected to the outer surface of the flow meter body 1 .

[0027] Specifically, two connection seats 3 are arranged on both sides of the protection box 2, and at the same time, the two connection seats 3 are fixedly connected to the outer surface of the flow meter body 1, so that the support column 8 supports the protection box 2 more stably.

[0028] In the embodiment, the outer surfaces of the two support columns 8 are slidably connected to the inner surface of the connection seat 3 , and the outer surfaces of the two screw rods 4 away from the fixing plate 11 are fixedly mounted with the control handles 5 .

[0029] Specifically, because the outer surfaces of the two support columns 8 are slidably connected to the inner surface of the connecting seat 3, the outer surfaces of the two screw rods 4 away from the fixing plate 11 are fixedly mounted with control handles 5 to facilitate the control of the screw rods 4 to rotate.

[0030] Working principle: a protection box 2 is fixedly installed on the outer surface of the flow meter body 1, and two connecting seats 3 are fixedly installed on the outer surface of the protection box 2, and the outer surfaces of the two connecting seats 3 are rotatably connected with screws 4, and the outer surfaces of the two screws 4 are threadedly connected with screw blocks 6, and two limiting grooves 7 are arranged inside the two connecting seats 3, and the two screw blocks 6 are fixedly installed with support columns 8 on the outer surfaces of the two limiting grooves 7. The flow meter body 1 is protected by the protection box 2, and then the two screws 4 are controlled to rotate to drive the screw blocks 6 to slide along the limiting grooves 7, so that the support columns 8 support the protection box 2. Compared with the related art, the utility model provides a differential pressure flow meter that is easy to maintain and has the following beneficial effects: thereby avoiding the flow meter body 1 from being in a suspended state, reducing the flow meter from being greatly affected by the environment, resulting in poor protection, and causing maintenance difficulties.

[0031] Embodiment 2:

[0032] Please refer to Figure 1-4 ,

[0033] A telescopic rod 9 and a shock-absorbing spring 10 are fixedly installed on the outer surface of the two support columns 8 away from the screw block 6, and the telescopic rod 9 is arranged in the middle of the shock-absorbing spring 10. The output ends of the telescopic rod 9 and the shock-absorbing spring 10 are fixedly connected to the outer surface of the fixing plate 11.

[0034] Specifically, a telescopic rod 9 and a shock-absorbing spring 10 are fixedly installed on the outer surface of the two support columns 8 away from the screw block 6, and the telescopic rod 9 is arranged in the middle of the shock-absorbing spring 10, and the output ends of the telescopic rod 9 and the shock-absorbing spring 10 are fixedly connected to the outer surface of the fixed plate 11, thereby achieving the effect of improving the seismic resistance of the equipment when the support column 8 is supporting.

[0035] In the embodiment, the outer surface of the fixing plate 11 is movably connected to the outer surfaces of the connecting seat 3 and the protective box 2 .

[0036] Specifically, because the outer surface of the fixing plate 11 is movably connected to the outer surface of the connecting seat 3 and the protective box 2, the initial height of the fixing plate 11 is connected to the outer surface of the protective box 2, so that the equipment is in a horizontal state, and the equipment is supported to the greatest extent.

[0037] Working principle: Because the sensor inside the differential pressure flowmeter is sensitive to external vibration, if the equipment is subjected to severe vibration for a long time, the sensor may not work properly, thereby affecting the measurement results. By fixing the telescopic rod 9 and the shock-absorbing spring 10 on the outer surface of the two support columns 8 away from the screw block 6, the telescopic rod 9 is arranged in the middle of the shock-absorbing spring 10, and the output ends of the telescopic rod 9 and the shock-absorbing spring 10 are fixedly connected to the outer surface of the fixed plate 11. When vibrating, the shock-absorbing spring 10 operates to reduce the loss caused by vibration. Compared with the related art, the utility model provides a differential pressure flowmeter that is easy to maintain and has the following beneficial effects: thereby achieving the effect of improving the seismic performance of the equipment when the support column 8 is supporting. Although the embodiments of the utility model have been shown and described, it can be understood by ordinary technicians in this field that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of the utility model, and the scope of the utility model is defined by the attached claims and their equivalents.

Claims

1. A differential pressure flow meter that is easy to maintain, comprising a flow meter body (1) and a fixing plate (11), characterized in that: A protective box (2) is fixedly installed on the outer surface of the flow meter body (1), and two connecting seats (3) are fixedly installed on the outer surface of the protective box (2). The outer surfaces of the two connecting seats (3) are rotatably connected with screw rods (4), and the outer surfaces of the two screw rods (4) are threadedly connected with screw blocks (6). Two limiting grooves (7) are arranged inside the two connecting seats (3), and the two screw blocks (6) are fixedly installed with support columns (8) through the outer surfaces of the two limiting grooves (7).

2. The differential pressure flow meter easy to maintain according to claim 1, characterized in that: A telescopic rod (9) and a shock absorbing spring (10) are fixedly mounted on the outer surface of the two support columns (8) away from the screw block (6), and the telescopic rod (9) is arranged in the middle of the shock absorbing spring (10), and the output ends of the telescopic rod (9) and the shock absorbing spring (10) are fixedly connected to the outer surface of the fixing plate (11).

3. The differential pressure flow meter easy to maintain according to claim 1, characterized in that: The outer surface of the protection box (2) is rotatably connected to a protection door (12), and the outer surface of the protection door (12) is provided with an observation window (13).

4. The differential pressure flow meter easy to maintain according to claim 1, characterized in that: The two connection seats (3) are arranged on both sides of the protection box (2), and the two connection seats (3) are fixedly connected to the outer surface of the flow meter body (1).

5. The differential pressure flow meter easy to maintain according to claim 1, characterized in that: The outer surfaces of the two support columns (8) are slidably connected to the inner surface of the connecting seat (3), and the outer surfaces of the two screw rods (4) away from the fixing plate (11) are fixedly mounted with control handles (5).

6. The differential pressure flow meter easy to maintain according to claim 2, characterized in that: The outer surface of the fixing plate (11) is movably connected to the outer surfaces of the connecting seat (3) and the protection box (2).

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