Telescopic pipeline for pump testing

Abstract

The utility model relates to a telescopic pipeline for pump testing, which comprises a hose (1), the top of the hose (1) is mounted at the lower end of a test drainage pipe (2) through a flange, a connecting pipe (3) used for connecting a drainage port of a centrifugal pump is mounted at the lower end of the hose (1) through a flange, and an adjusting mechanism is further mounted between the drainage pipe (2) and the connecting pipe (3). The adjusting mechanism comprises an upper base (4) fixedly arranged on the drain pipe (2), a lower base (6) fixedly arranged on the connecting pipe (3), and a telescopic device connected between the upper base (4) and the lower base (6) and used for adjusting the length of the hose (1); a guiding device is further connected between the upper base (4) and the lower base (6) and used for guiding when the upper base (4) and the lower base (6) move relative to each other. The device is simple in structure, high in pipeline telescopic adjusting efficiency and high in pump testing efficiency.

Description

Technical Field

[0001] The utility model relates to a telescopic pipeline for pump testing and belongs to the technical field of pump testing equipment. Background Art

[0002] After the centrifugal pump is assembled, it is necessary to conduct a water pumping test on the centrifugal pump to detect and evaluate the various performance indicators of the centrifugal pump. At present, during the batch assembly and testing of centrifugal pumps, since there are many specifications of centrifugal pumps, the height of the drain outlet of centrifugal pumps of different specifications is also different. During the testing process, it is necessary to frequently disassemble and move the position of the drain pipe according to the height of the drain outlet of the centrifugal pump of different specifications to make it correspond to the drain outlet of the centrifugal pump. However, the weight of the water pipe is heavy, and it is time-consuming and laborious to rely on manual handling, which is inefficient and poses a safety hazard. The use of a vertically arranged telescopic pipe can replace manual handling and conveniently adjust the end height of the drain pipe to match the different heights of the drain outlets of various centrifugal pumps. However, the existing telescopic pipe is generally adjusted manually by bolts and nuts, and the adjustment efficiency is low, which affects the test efficiency of the centrifugal pump. There is an urgent need for a telescopic pipe for pump testing with a simple structure and high telescopic adjustment efficiency. Summary of the invention

[0003] The utility model aims to overcome the above-mentioned shortcomings and provide a telescopic pipeline for pump testing which has a simple structure and high telescopic adjustment efficiency.

[0004] The purpose of the utility model is achieved in this way:

[0005] A telescopic pipe for pump testing comprises a hose whose top is mounted on the lower end of a test drain pipe via a flange, a connecting pipe for connecting to a drain outlet of a centrifugal pump is mounted on the lower end of the hose via a flange, and an adjusting mechanism is also installed between the drain pipe and the connecting pipe; the adjusting mechanism comprises an upper base fixedly mounted on the drain pipe, a lower base fixedly mounted on the connecting pipe, and a telescopic device connected between the upper base and the lower base for adjusting the length of the hose; a guiding device is also connected between the upper base and the lower base for guiding the upper base and the lower base when the two move relative to each other.

[0006] Furthermore, the telescopic device comprises a motor fixedly mounted on the upper base and a screw driven to rotate by the motor; the lower base is threadedly sleeved on the screw.

[0007] Furthermore, a battery pack and a control switch are provided on the drain pipe to provide power and control for the motor of the telescopic device.

[0008] Furthermore, the telescopic device includes an electric push rod which is vertically inverted and fixed on the upper base, and the movable end of the electric push rod is hingedly connected to the lower base.

[0009] Furthermore, the guide device includes a guide column fixedly mounted on the upper base, and a guide hole arranged on the lower base and slidably sleeved on the guide column.

[0010] Furthermore, the hose is a rubber hose or a corrugated hose.

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

[0012] The utility model changes the length of the hose and adjusts the height of the lower end of the lower connecting pipe through the motor screw drive or the electric push rod pushing structure, so as to adapt to the heights of different drainage outlets of centrifugal pumps of different specifications, making the adjustment operation process simpler, the adjustment speed faster and the work efficiency higher. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 It is a front view structural schematic diagram of a telescopic pipeline for pump testing according to the utility model.

[0014] Figure 2 It is a left-side structural schematic diagram of a telescopic pipeline for pump testing according to the utility model.

[0015] Figure 3 It is a left-side structural schematic diagram of a telescopic pipeline for pump testing according to the utility model.

[0016] in:

[0017] Hose 1, drain pipe 2, connecting pipe 3, upper base 4, guide column 5, lower base 6, motor 7, screw rod 8, electric push rod 9, guide hole 10. DETAILED DESCRIPTION Example 1

[0018] See also Figure 1 and Figure 2 The utility model relates to a telescopic pipe for pump testing, comprising a hose 1 whose top is mounted on the lower end of a test drain pipe 2 through a flange, the hose 1 being a rubber hose or a corrugated hose, a connecting pipe 3 for connecting a drain outlet of a centrifugal pump is mounted on the lower end of the hose 1 through a flange, and an adjusting mechanism is also installed between the drain pipe 2 and the connecting pipe 3; the adjusting mechanism comprises an upper base 4 fixedly mounted on the drain pipe 2, a lower base 6 fixedly mounted on the connecting pipe 3, and a telescopic device connected between the upper base 4 and the lower base 6 for adjusting the length of the hose 1; the telescopic device comprises a motor 7 fixedly mounted on the upper base 4, a screw rod 8 driven to rotate by the motor 7, the lower base 6 is threadedly sleeved on the screw rod 8, a battery pack and a control switch are provided on the drain pipe 2, which provide power and control for the motor 7 of the telescopic device, the screw rod 8 is driven to rotate by the motor 7, and the lower base 6 is driven to move away from or close to the upper base 4, so as to achieve the purpose of adjusting the length of the hose 1 and changing the height of the lower end of the connecting pipe 3, so as to meet the connection of drain outlets of different heights of centrifugal pumps of different specifications;

[0019] A guiding device is also connected between the upper base 4 and the lower base 6, which is used for guiding the upper base 4 and the lower base 6 when they move relative to each other; the guiding device includes a guiding column 5 fixedly mounted on the upper base 4, and a guiding hole 10 arranged on the lower base 6 and slidably mounted on the guiding column 5; through the coordinated guiding effect of the guiding column 5 and the guiding hole 10, it is ensured that the lower base 6 does not deviate during the up and down movement process and the movement is more stable. Example 2

[0020] See also Figure 1 and Figure 3 On the basis of Example 1, the transmission structure of the motor 7 and the screw rod 8 of the telescopic device, and the screw rod 8 being threadedly connected to the lower base 6, are replaced by an electric push rod 9 invertedly fixed on the upper base 4, and the movable end of the electric push rod 9 is hingedly connected to the lower base 6; the purpose of adjusting the length of the hose 1 and changing the height of the lower end of the connecting pipe 3 is achieved by utilizing the pushing effect of the electric push rod 9 on the lower base 6.

[0021] The utility model improves the original manual adjustment of the limit length of the bolt and nut, thereby changing the length of the hose 1 and the height of the lower end of the connecting pipe 3 to adapt to the heights of the different drain outlets of centrifugal pumps of different specifications, and adopts a motor screw drive or an electric push rod to push the structure, so that the operation of adjusting the length of the hose 1 is simpler, the adjustment speed is faster, and the work efficiency is higher.

[0022] In addition: It should be noted that the above specific implementation is only an optimization scheme of this patent. Any changes or improvements made by technicians in this field based on the above concept are within the scope of protection of this patent.

Claims

1. A telescopic pipe for pump testing, comprising a hose (1) whose top is mounted on the lower end of a test drain pipe (2) via a flange, and a connecting pipe (3) for connecting to a drain outlet of a centrifugal pump is mounted on the lower end of the hose (1) via a flange, characterized in that: An adjusting mechanism is also installed between the drain pipe (2) and the connecting pipe (3); the adjusting mechanism comprises an upper base (4) fixedly mounted on the drain pipe (2), a lower base (6) fixedly mounted on the connecting pipe (3), and a telescopic device connected between the upper base (4) and the lower base (6) for adjusting the length of the hose (1); a guiding device is also connected between the upper base (4) and the lower base (6) for guiding the upper base (4) and the lower base (6) when they move relative to each other.

2. The telescopic pipe for pump testing according to claim 1, characterized in that: The telescopic device comprises a motor (7) fixedly mounted on the upper base (4) and a screw rod (8) driven to rotate by the motor (7); the lower base (6) is threadedly sleeved on the screw rod (8).

3. The telescopic pipe for pump testing according to claim 2, characterized in that: The drainage pipe (2) is provided with a battery pack and a control switch to provide power and control for the motor (7) of the telescopic device.

4. The telescopic pipe for pump testing according to claim 1, characterized in that: The telescopic device comprises an electric push rod (9) which is vertically inverted and fixed on the upper base (4); the movable end of the electric push rod (9) is hingedly connected to the lower base (6).

5. The telescopic pipe for pump testing according to claim 1, characterized in that: The guide device comprises a guide column (5) fixedly mounted on the upper base (4), and a guide hole (10) arranged on the lower base (6) and slidably sleeved on the guide column (5).

6. The telescopic pipe for pump testing according to claim 1, characterized in that: The hose (1) is a rubber hose or a corrugated hose.

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