Flowmeter assembly for commodity inspection of variable frequency heat pump unit

Abstract

The utility model provides a flow meter assembly for commodity inspection of a variable frequency heat pump unit, which relates to the technical field of flow meters and comprises a pipeline, a detection plate arranged in the pipeline, a rotating rod arranged on the detection plate, a disc arranged at the upper end of the rotating rod and a pointer arranged on the disc. A plurality of angle indicating parts are arranged on the pipeline, a pressure taking pipe is further connected to the pipeline, the other end of the pressure taking pipe is connected with a differential pressure transmitter, and a lifting auxiliary device is further detachably installed on the pipeline. The detection plate is rotated by manually rotating the disc, the angle is displayed through the angle indicating parts, only manual rotation is needed during use, compared with the prior art, the cost is lower, the fault probability is smaller, in addition, by arranging the lifting auxiliary device, after a pipeline is lifted to a proper position, installation operation can be carried out with two hands, and the installation efficiency is improved. Installation is more convenient, and practicability is better.

Description

Technical Field

[0001] The utility model relates to the technical field of flow meters, in particular to a flow meter assembly for commercial inspection of variable frequency heat pump units. Background Technique

[0002] The development of flow measurement can be traced back to ancient water conservancy projects and urban water supply systems. In the Caesar era of ancient Rome, orifice plates were used to measure the water volume of residents' drinking water. Around 1000 BC, the ancient Egyptians used the weir method to measure the flow of the Nile River. In the famous Dujiangyan Water Conservancy Project in China, the water volume was observed by the water level at the Baopingkou, etc.; Flow measurement is one of the components of metrology science and technology, and it has a close relationship with the national economy, national defense construction, and scientific research. Doing a good job in this work plays an important role in ensuring product quality, improving production efficiency, and promoting the development of science and technology. Especially in the current era of energy crisis and increasing automation of industrial production, the status and role of flow meters in the national economy are more obvious.

[0003] For example, the patent with the publication number CN 219694240 U discloses "a porous balanced orifice flow meter with a rotatable middle orifice plate, including: a pipe body; a throttling mechanism, the throttling mechanism includes a throttle plate and a housing, the bottom and top of the throttle plate are respectively fixedly connected with a first rotating rod and a second rotating rod, the top of the second rotating rod is fixedly connected with an angle sensor, the bottom of the first rotating rod penetrates through the inner cavity of the housing and is fixedly sleeved with a driven gear, the bottom of the housing is fixedly connected with a fixing plate, the bottom of the fixing plate is fixedly connected with a stepping motor, and the output shaft of the stepping motor is fixedly sleeved with a driving gear; a differential pressure transmitter, the differential pressure transmitter is fixedly installed on the top of the pipe body.

[0004] However, the above patent drives the throttle plate to rotate through the cooperation between the stepping motor, the driving gear, the driven gear, and the angle sensor, resulting in relatively high procurement and production costs and relatively high failure rates; in addition, both the first rotating rod and the second rotating rod extend out of the pipe body, so seals need to be provided at both extended positions, increasing the possibility of leakage; in addition, when installing the above patent, one hand needs to hold the flow meter, and the other hand needs to pick up the connecting piece to connect the pipe body and the pipeline to be connected, which is relatively inconvenient to operate. Content of the Utility Model

[0005] The utility model provides a flow meter assembly for commercial inspection of variable frequency heat pump units to solve at least one of the problems raised in the above background technique.

[0006] To solve the above technical problems, the utility model discloses a flowmeter assembly for inspection of variable frequency heat pump units, which includes a pipeline. A detection plate is arranged inside the pipeline. A rotating rod is arranged on the detection plate. The rotating rod extends upward and rotates out of the pipeline. A disc is arranged at the upper end of the rotating rod. A pointer is arranged on the disc. A plurality of angle indicating parts are arranged on the pipeline. A pressure taking pipe is also connected to the pipeline. The other end of the pressure taking pipe is connected to a differential pressure transmitter. A lifting auxiliary device is detachably installed on the pipeline.

[0007] Preferably, a plurality of water passing holes are arranged on the detection plate.

[0008] Preferably, flange plates are arranged on both sides of the pipeline.

[0009] Preferably, a plurality of friction lines are arranged on the disc.

[0010] Preferably, a first fixing block is symmetrically arranged on the front and back of the pipeline. A through hole is arranged on the first fixing block.

[0011] Preferably, a cross channel is arranged inside the disc. The horizontal height of the cross channel is the same as that of the through hole.

[0012] Preferably, a limiting rod is inserted into the through hole and the cross channel. A limiting block is also arranged in cooperation with the limiting rod.

[0013] Preferably, the lifting auxiliary device includes a second fixing block. The second fixing block is fixedly arranged on the lower surface of the pipeline. A fixing plate is fixedly arranged at the lower end of the second fixing block. Three mounting blocks are arranged on the lower surface of the fixing plate. Link rods one are hinged on the left and right sides of the rear mounting block. A threaded rod is rotatably connected to the middle mounting block. The threaded rod rotates through the front mounting block. A driving block is threadedly connected to the threaded rod. Link rods two are hinged on the left and right sides of the driving block. The lower sides of the link rods two are hinged to a moving block. A moving plate is fixedly connected to the lower side of the moving block.

[0014] Preferably, a sliding through groove is arranged on the moving block. Sliding rods are arranged on the sides of the other ends of the link rods one close to each other. The sliding rods pass through the sliding through groove, and the sliding rods are slidably connected to the sliding through groove.

[0015] Preferably, the cross positions of the link rods one and the link rods two on the same side are hinged to each other.

[0016] Compared with the prior art, the utility model provides a flowmeter assembly for inspection of variable frequency heat pump units. By manually rotating the disc, the detection plate can be rotated, and the angle is displayed through a plurality of angle indicating parts. During use, only manual rotation is required, which has lower cost and smaller failure probability compared with the prior art. In addition, by setting the lifting auxiliary device, after the pipeline is lifted to a suitable position, the installation operation can be carried out with both hands, and the installation is more convenient and the practicability is better. And the rotating rod only extends upward out of the pipeline, and only the upward extending position needs to be sealed, so the probability of pipeline leakage is relatively lower. Brief Description of the Drawings

[0017] The drawings are used to provide a further understanding of the present utility model and constitute a part of the specification. Together with the embodiments of the present utility model, they are used to explain the present utility model and do not constitute a limitation to the present utility model. In the drawings:

[0018] Figure 1 is a schematic structural view of the present utility model;

[0019] Figure 2 is of the present utility model Figure 1 partial top view of the structure;

[0020] Figure 3 is an installation schematic view of the limit rod of the present utility model;

[0021] Figure 4 is a schematic structural view of the lifting auxiliary device of the present utility model.

[0022] In the drawings: 1, pipeline; 2, flange; 3, detection plate; 4, water passing hole; 5, rotating rod; 6, pressure tapping pipe; 7, differential pressure transmitter; 8, disc; 9, pointer; 10, first fixing block; 11, angle indicating part; 12, cross channel; 13, limit block; 14, limit rod; 15, second fixing block; 16, fixing plate; 17, mounting block; 18, moving block; 19, second connecting rod; 20, moving plate; 21, sliding through groove; 22, first connecting rod; 23, rotating disc; 24, threaded rod; 25, driving block. Detailed Description of the Preferred Embodiments

[0023] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all of the embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present utility model.

[0024] In the description of the present utility model, it should be noted that the orientation or positional relationship indicated by the terms "upper", "lower", "inner", "outer", "front end", "rear end", "both ends", "one end", "the other end", etc. is based on the orientation or positional relationship shown in the drawings. It is only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation to the present utility model. In addition, the terms "first" and "second" are only used for descriptive purposes and cannot be construed as indicating or implying relative importance.

[0025] In the description of the present utility model, it should be noted that unless otherwise clearly defined and limited, terms such as "installation", "provided with", "connection", etc. should be understood in a broad sense. For example, "connection" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and it can be the communication inside two components. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific situations.

[0026] Embodiment 1

[0027] An embodiment of the present utility model provides a flowmeter assembly for inspection of a variable frequency heat pump unit, as Figures 1-4 shown, including a pipeline 1. A detection plate 3 is arranged inside the pipeline 1. A rotating rod 5 is arranged on the detection plate 3. The rotating rod 5 extends upward and rotates out of the pipeline 1. A disc 8 is arranged at the upper end of the rotating rod 5. A pointer 9 is arranged on the disc 8. A plurality of angle indicating parts 11 are opened on the pipeline 1. A pressure-taking pipe 6 is also connected to the pipeline 1. The other end of the pressure-taking pipe 6 is connected to a differential pressure transmitter 7. A lifting auxiliary device is also detachably installed on the pipeline 1.

[0028] The working principle and beneficial effects of the above technical solution are as follows: Take the flowmeter assembly to the position where it needs to be installed, start the lifting auxiliary device, lift the pipeline 1 to the appropriate position, and then connect the pipeline 1 to the pipeline on the variable frequency heat pump unit; when the flowmeter is not in use, manually rotate the disc 8. The disc 8 drives the detection plate 3 to rotate through the rotating rod 5. At the same time, the pointer 9 on the disc 8 rotates together. The pointer 9 will point to different angle indicating parts 11. When the disc 8 rotates 90 degrees, the blocking force of the detection plate 3 is the smallest, which can close the flowmeter when it is not in use and basically does not affect the water flow in the pipeline 1; by manually rotating the disc 8 to make the detection plate 3 rotate, and displaying the angle through a plurality of angle indicating parts 11, only manual rotation is required during use, which has lower cost and smaller failure probability compared with the prior art. In addition, by setting the lifting auxiliary device, after lifting the pipeline to the appropriate position, both hands can be used for installation operation, which is more convenient and has better practicability; and the rotating rod 5 only extends upward out of the pipeline, and only the upward extending position needs to be sealed, so the probability of leakage of the pipeline 1 is relatively lower.

[0029] Embodiment 2

[0030] On the basis of the above Embodiment 1, as Figure 1 shown, a plurality of water passing holes 4 are opened on the detection plate 3.

[0031] Among them, preferably, flange plates 2 are arranged on both sides of the pipeline 1.

[0032] Among them, preferably, a plurality of friction lines are provided on the disc 8.

[0033] The beneficial effects of the above technical solution are as follows: By providing the flange 2, the pipeline 1 can be quickly connected to the pipeline on the variable frequency heat pump unit, and the connection is more convenient; and by providing a plurality of friction lines on the disc 8, the friction force between the human hand and the disc 8 can be effectively increased, and the rotation is more convenient.

[0034] Embodiment 3

[0035] On the basis of the above Embodiments 1-2, as Figures 2-3 shown, symmetric fixing blocks one 10 are provided on the pipeline 1 before and after, and through holes are provided in the fixing blocks one 10.

[0036] Among them, preferably, a cross channel 12 is provided in the disc 8, and the horizontal height of the cross channel 12 is the same as that of the through hole.

[0037] Among them, preferably, a limiting rod 14 is inserted into the through hole and the cross channel 12, and a limiting block 13 is also provided in cooperation with the limiting rod 14.

[0038] Among them, a section of thread can be provided on the limiting rod 14, and the limiting block 13 can be a nut. By the cooperation of the nut and the thread, the limiting rod 14 can be limited in the through hole and the cross channel 12 to prevent the limiting rod 14 from detaching, which is more convenient to use;

[0039] The working principle and beneficial effects of the above technical solution are as follows: After the disc 8 rotates (opening or closing the flowmeter), the limiting rod 14 is passed through the two through holes and the cross channel 12, so as to limit the disc 8, and then the limiting block 13 is matched with the limiting rod 14 to prevent the limiting rod 14 from loosening; the limitation of the disc 8 is also the limitation of the detection plate 3, so as to prevent the detection plate 3 from rotating under the impact of the liquid, which may lead to abnormal detection results of the flowmeter assembly.

[0040] Embodiment 4

[0041] On the basis of the above Embodiments 1-3, as Figure 4 shown, the lifting auxiliary device includes a fixing block two 15, the fixing block two 15 is fixedly arranged on the lower surface of the pipeline 1, a fixing plate 16 is fixedly arranged at the lower end of the fixing block two 15, three mounting blocks 17 are arranged on the lower surface of the fixing plate 16, connecting rods one 22 are hinged on the left and right sides of the rear mounting block 17, a threaded rod 24 is rotatably connected to the middle mounting block 17, the threaded rod 24 rotates through the front mounting block 17, a driving block 25 is threadedly connected to the threaded rod 24, connecting rods two 19 are hinged on the left and right sides of the driving block 25, and a moving block 18 is hinged on the lower side of the connecting rods two 19, and a moving plate 20 is fixedly connected to the lower side of the moving block 18.

[0042] Among them, preferably, a sliding through groove 21 is formed in the moving block 18, and sliding rods are arranged on one side where the other ends of the first connecting rods 22 are close to each other. The sliding rods pass through the sliding through groove 21 and are slidably connected to the sliding through groove 21.

[0043] Among them, preferably, the cross positions of the first connecting rods 22 and the second connecting rods 19 on the same side are hinged to each other.

[0044] Among them, a rotating disc 23 is fixedly arranged at the other end of the threaded rod 24; or a motor is fixedly arranged on the fixed plate 16, and the output end of the motor is fixed to the threaded rod 24.

[0045] The working principle and beneficial effects of the above technical solution are as follows: Take the flowmeter assembly to a suitable position. At this time, rotate the rotating disc 23 or start the motor, and the threaded rod 24 starts to rotate, so that the driving block 25 moves on the threaded rod 24. The movement of the driving block 25 drives the second connecting rod 19 to deflect. Due to the hinge between the second connecting rod 19 and the first connecting rod 22, the first connecting rod 22 also deflects. The sliding rod on the first connecting rod 22 slides in the sliding through groove 21, so that the moving block 18 moves away from or close to the fixed plate 16, thereby adjusting the height of the pipeline 1, making it more convenient to connect the pipeline 1 to the pipeline on the variable frequency heat pump unit. One can install the flowmeter assembly with both hands, and the installation is more convenient and practical.

[0046] For those skilled in the art, it is obvious that the present invention is not limited to the details of the above exemplary embodiments, and without departing from the spirit or basic characteristics of the present invention, the present invention can be implemented in other specific forms. Therefore, in any aspect, the embodiments should be regarded as exemplary and non-restrictive. The scope of the present invention is defined by the appended claims rather than the above description. Therefore, all changes falling within the meaning and scope of the equivalent elements of the claims are intended to be included in the present invention. Any reference signs in the claims should not be regarded as limiting the claimed rights.

Claims

1. A flow meter assembly for commercial inspection of a variable frequency heat pump unit, characterized in that: The invention comprises a pipeline (1), wherein a detection plate (3) is arranged in the pipeline (1), a rotating rod (5) is arranged on the detection plate (3), the rotating rod (5) rotates upward to extend out of the pipeline (1), a disc (8) is arranged on the upper end of the rotating rod (5), a pointer (9) is arranged on the disc (8), a plurality of angle indicating parts (11) are provided on the pipeline (1), a pressure taking pipe (6) is also connected to the pipeline (1), the other end of the pressure taking pipe (6) is connected to a differential pressure transmitter (7), and a lifting auxiliary device can also be detachably installed on the pipeline (1).

2. A flow meter assembly for commercial inspection of a variable frequency heat pump unit according to claim 1, characterized in that: A plurality of water holes (4) are provided on the detection plate (3).

3. A flow meter assembly for commercial inspection of a variable frequency heat pump unit according to claim 1, characterized in that: Flange plates (2) are provided on both sides of the pipeline (1).

4. A flow meter assembly for commercial inspection of a variable frequency heat pump unit according to claim 1, characterized in that: The disc (8) is provided with a plurality of friction patterns.

5. A flow meter assembly for commercial inspection of a variable frequency heat pump unit according to claim 1, characterized in that: A front-to-back symmetrical fixing block (10) is provided on the pipeline (1), and a through hole is provided on the fixing block (10).

6. A flow meter assembly for commercial inspection of a variable frequency heat pump unit according to claim 5, characterized in that: A cross channel (12) is provided in the disc (8), and the cross channel (12) is at the same level as the through hole.

7. A flow meter assembly for commercial inspection of a variable frequency heat pump unit according to claim 6, characterized in that: A limiting rod (14) is inserted into the through hole and the cross channel (12), and a limiting block (13) is also provided on the limiting rod (14).

8. A flow meter assembly for commercial inspection of a variable frequency heat pump unit according to claim 1, characterized in that: The lifting auxiliary device comprises a second fixing block (15), the second fixing block (15) is fixedly arranged on the lower surface of the pipeline (1), a fixing plate (16) is fixedly arranged at the lower end of the second fixing block (15), three mounting blocks (17) are arranged on the lower surface of the fixing plate (16), the left and right sides of the rear mounting block (17) are hinged with a connecting rod (22), the middle mounting block (17) is rotatably connected with a threaded rod (24), the threaded rod (24) rotatably passes through the front mounting block (17), the threaded rod (24) is threadedly connected with a driving block (25), the left and right sides of the driving block (25) are hinged with a second connecting rod (19), the lower side of the second connecting rod (19) is hinged with a moving block (18), and the lower side of the moving block (18) is fixedly connected with a moving plate (20).

9. A flow meter assembly for commercial inspection of a variable frequency heat pump unit according to claim 8, characterized in that: A sliding groove (21) is provided on the moving block (18), and a sliding rod is provided on the side where the other end of the connecting rod (22) is close to each other. The sliding rod passes through the sliding groove (21), and the sliding rod is slidably connected to the sliding groove (21).

10. A flow meter assembly for commercial inspection of a variable frequency heat pump unit according to claim 9, characterized in that: The intersection positions of the connecting rod 1 (22) and the connecting rod 2 (19) located on the same side are hinged to each other.

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