Pipeline connecting structure of vertical self-priming pump

Abstract

The utility model discloses a pipeline connecting structure of a vertical self-priming pump, which is applied to the field of pipeline connecting structures and comprises a connecting pipe, the two ends of the connecting pipe are communicated with connecting flanges, the two ends of the connecting pipe are respectively provided with a self-priming pump output pipe and an external infusion pipe, and the surface of the connecting pipe is symmetrically sleeved with sleeve seats. Clamping seats in threaded connection with the sleeve seat are symmetrically clamped on the surface of the self-priming pump output pipe and the surface of the external infusion pipe; the connecting pipe is arranged between the output pipe of the self-priming pump and the external infusion pipe, the sleeve seat is arranged on the connecting flange in a matched mode, when the four clamping seats are clamped on the output pipe of the self-priming pump and the external infusion pipe respectively, the sleeve seat is rotated to be in threaded connection with the clamping seats, and under the limiting of the fixing flange, the self-priming pump is connected with the external infusion pipe. The sleeve seat drives the connecting flange and the fixing flange to be extruded together, the fixing purpose is achieved, bolt screwing is not needed, and the convenience and speed of mounting and dismounting are improved.

Description

Technical Field

[0001] The utility model relates to the field of pipeline connection structures, in particular to a pipeline connection structure of a vertical self-priming pump. Background Art

[0002] A vertical self-priming pump is a centrifugal water pump product that adopts a mechanical seal structure and has an impeller directly installed on the motor shaft. At present, the output port of the vertical self-priming pump is connected to the external infusion pipe by a flange connection. Although the flange connection can achieve the purpose of stable connection, there are still certain problems. For example, the flange connection requires the vertical self-priming pump output end flange and the external infusion pipe flange to be screwed together with bolts to fix the two flanges together. However, there are certain problems with the bolt connection. First, the bolt connection is prone to rust over a long period of time, resulting in thread slippage when disassembly is required, making disassembly difficult. Second, in order to ensure the stability of fixation, a large number of bolts are used for the output end flange of the vertical self-priming pump and the external infusion pipe flange. During disassembly and installation, the workload of the staff is large. In order to solve the problems raised in the above background, we propose a pipeline connection structure for a vertical self-priming pump. Utility Model Content

[0003] The utility model aims to provide a pipeline connection structure of a vertical self-priming pump, which has the advantage of being convenient for installation and disassembly.

[0004] The above technical purpose of the utility model is achieved through the following technical solutions: a pipeline connection structure of a vertical self-priming pump, including a connecting pipe, both ends of the connecting pipe are connected with connecting flanges, the two ends of the connecting pipe are respectively provided with a self-priming pump output pipe and an external infusion pipe, the surface of the connecting pipe is symmetrically sleeved with a socket, and the surface of the self-priming pump output pipe and the surface of the external infusion pipe are symmetrically clamped with a clamping seat threadedly connected to the socket.

[0005] By adopting the above technical scheme, the utility model designs a connecting pipe between the self-priming pump output pipe and the external infusion pipe, which cooperates with the sleeve installed on the connecting flange. When the four clamping seats are respectively clamped on the self-priming pump output pipe and the external infusion pipe, the rotating sleeve is threadedly connected with the clamping seat. Under the limit of the fixed flange, the sleeve drives the connecting flange and the fixed flange to be squeezed together to achieve the purpose of fixing. There is no need to use bolts to tighten, which improves the convenience and speed of installation and disassembly.

[0006] The utility model is further configured as follows: first limiting grooves are symmetrically provided on opposite sides of the two clamping seats, and a first limiting block is clamped between the two first limiting grooves.

[0007] The above technical solution is adopted to limit the positions of the two clamping seats.

[0008] The utility model is further configured as follows: second limiting grooves are symmetrically provided on opposite sides of the two clamping seats, and a second limiting block is clamped between the two second limiting grooves.

[0009] By adopting the above technical solution, the two clamping seats are further limited.

[0010] The utility model is further configured as follows: the material of the connecting pipe is stainless steel.

[0011] By adopting the above technical solution, the corrosion resistance of the connecting pipe is improved.

[0012] The utility model is further configured as follows: the opposite ends of the self-priming pump output tube and the external infusion tube are both fixedly sleeved with a fixing flange used in conjunction with the connecting flange.

[0013] The above technical solution is adopted to facilitate fixing with the connecting flange and limiting the position of the clamping seat.

[0014] The utility model is further configured as follows: a groove is provided on one side of the connecting flange close to the fixing flange, and a sealing ring used in conjunction with the fixing flange is clamped inside the groove.

[0015] The above technical solution is adopted to seal the connection flange and the fixed flange.

[0016] The utility model is further configured as follows: an annular guide block is bolted to one side opposite to the two connecting flanges, and a guide groove used in conjunction with the annular guide block is provided on the sleeve.

[0017] The above technical solution is adopted to limit the rotation of the sleeve.

[0018] The utility model is further configured as follows: the material of the sleeve is stainless steel.

[0019] The above technical solution is adopted to improve the durability and corrosion resistance of the sleeve.

[0020] In summary, the utility model has the following beneficial effects:

[0021] The utility model designs a connecting pipe between the output pipe of the self-priming pump and the external infusion pipe, which cooperates with a sleeve installed on the connecting flange. When the four clamping seats are respectively clamped on the output pipe of the self-priming pump and the external infusion pipe, the rotating sleeve is threadedly connected with the clamping seat. Under the limit of the fixed flange, the sleeve drives the connecting flange and the fixed flange to be squeezed together, so as to achieve the purpose of fixing without the need to use bolts to tighten, thereby improving the convenience and speed of installation and disassembly. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0023] Figure 2 It is a partial structural cross-sectional view of the utility model;

[0024] Figure 3 It is a partial structural schematic diagram of the utility model;

[0025] Figure 4 This utility model Figure 2 Enlarged view of point A in the middle.

[0026] Figure numerals: 1. connecting pipe; 2. connecting flange; 3. self-priming pump output pipe; 4. external infusion tube; 5. sleeve; 6. clamping seat; 7. first limit groove; 8. first limit block; 9. second limit groove; 10. second limit block; 11. guide groove; 12. fixing flange; 13. slot; 14. sealing ring; 15. annular guide block. DETAILED DESCRIPTION

[0027] The utility model is further described in detail below in conjunction with the accompanying drawings.

[0028] Embodiment 1:

[0029] refer to Figure 1 , Figure 2 , Figure 3 and Figure 4 , a pipeline connection structure of a vertical self-priming pump, including a connecting pipe 1, both ends of the connecting pipe 1 are connected with connecting flanges 2, both ends of the connecting pipe 1 are respectively provided with a self-priming pump output pipe 3 and an external infusion pipe 4, a sleeve 5 is symmetrically sleeved on the surface of the connecting pipe 1, and the surfaces of the self-priming pump output pipe 3 and the external infusion pipe 4 are symmetrically clamped with a clamping seat 6 threadedly connected to the sleeve 5. By designing a connecting pipe 1 between the self-priming pump output pipe 3 and the external infusion pipe 4, the sleeve 5 installed on the connecting flange 2 is matched, and when the four clamping seats 6 are respectively clamped on the self-priming pump output pipe 3 and the external infusion pipe 4, the rotating sleeve 5 is threadedly connected with the clamping seat 6, and under the limit of the fixed flange 12, the sleeve 5 drives the connecting flange 2 and the fixed flange 12 to be squeezed together to achieve the purpose of fixing, without the need to use bolts to tighten, thereby improving the convenience and speed of installation and disassembly.

[0030] refer to Figure 1 and Figure 3 The two clamping seats 6 are symmetrically provided with first limiting grooves 7 on opposite sides thereof, and a first limiting block 8 is clamped between the two first limiting grooves 7. By providing the first limiting grooves 7 and the first limiting block 8, the two clamping seats 6 are limited.

[0031] refer to Figure 1 and Figure 3The two clamping seats 6 are symmetrically provided with second limiting grooves 9 on opposite sides thereof, and a second limiting block 10 is clamped between the two second limiting grooves 9. By providing the second limiting grooves 9 and the second limiting block 10, the two clamping seats 6 are further limited.

[0032] refer to Figure 1 and Figure 2 The material of the connecting pipe 1 is stainless steel. By setting the material of the connecting pipe 1 to stainless steel, the corrosion resistance of the connecting pipe 1 is improved.

[0033] refer to Figure 2 The opposite ends of the self-priming pump output tube 3 and the external infusion tube 4 are fixedly sleeved with a fixing flange 12 used in conjunction with the connecting flange 2. By setting the fixing flange 12, it is convenient to fix it together with the connecting flange 2 and limit the clamping seat 6.

[0034] refer to Figure 2 and Figure 4 A groove 13 is provided on one side of the connecting flange 2 close to the fixed flange 12, and a sealing ring 14 used in conjunction with the fixed flange 12 is clamped inside the groove 13. By providing the groove 13 and the sealing ring 14, the connecting flange 2 and the fixed flange 12 are sealed.

[0035] refer to Figure 2 and Figure 4 , an annular guide block 15 is bolted to the opposite side of the two connecting flanges 2, and a guide groove 11 for use with the annular guide block 15 is opened on the sleeve 5. By setting the annular guide block 15 and the guide groove 11, the sleeve 5 is limited in rotation.

[0036] refer to Figure 1 and Figure 2 The material of the sleeve 5 is stainless steel. By setting the material of the sleeve 5 to be stainless steel, the durability and corrosion resistance of the sleeve 5 are improved.

[0037] Brief description of the use process: A connecting pipe 1 is designed between the self-priming pump output pipe 3 and the external infusion pipe 4, which cooperates with the sleeve 5 installed on the connecting flange 2. When the four clamping seats 6 are respectively clamped on the self-priming pump output pipe 3 and the external infusion pipe 4, the rotating sleeve 5 is threadedly connected with the clamping seat 6. Under the limit of the fixed flange 12, the sleeve 5 drives the connecting flange 2 and the fixed flange 12 to be squeezed together to achieve the purpose of fixing. There is no need to use bolts to tighten, which improves the convenience and speed of installation and disassembly.

[0038] This specific embodiment is merely an explanation of the present invention and is not a limitation of the present invention. After reading this specification, those skilled in the art may make non-creative modifications to the present embodiment as needed, but such modifications are protected by patent law as long as they are within the scope of the claims of the present invention.

Claims

1. A pipeline connection structure for a vertical self-priming pump, comprising a connecting pipe (1), characterized in that: Both ends of the connecting pipe (1) are connected to connecting flanges (2), and both ends of the connecting pipe (1) are respectively provided with a self-priming pump output pipe (3) and an external infusion pipe (4), and a sleeve seat (5) is symmetrically sleeved on the surface of the connecting pipe (1), and the surface of the self-priming pump output pipe (3) and the surface of the external infusion pipe (4) are symmetrically clamped with a clamping seat (6) threadedly connected to the sleeve seat (5).

2. A pipe connection structure for a vertical self-priming pump according to claim 1, characterized in that: The two opposite sides of the two clamping seats (6) are symmetrically provided with first limiting grooves (7), and a first limiting block (8) is clamped between the two first limiting grooves (7).

3. The pipeline connection structure of a vertical self-priming pump according to claim 1 is characterized in that: Second limiting grooves (9) are symmetrically provided on opposite sides of the two clamping seats (6), and a second limiting block (10) is clamped between the two second limiting grooves (9).

4. The pipeline connection structure of a vertical self-priming pump according to claim 1, characterized in that: The connecting pipe (1) is made of stainless steel.

5. The pipeline connection structure of a vertical self-priming pump according to claim 1, characterized in that: The opposite ends of the self-priming pump output pipe (3) and the external infusion pipe (4) are both fixedly sleeved with a fixing flange (12) used in conjunction with the connecting flange (2).

6. A pipe connection structure for a vertical self-priming pump according to claim 5, characterized in that: A groove (13) is provided on one side of the connecting flange (2) close to the fixing flange (12), and a sealing ring (14) used in conjunction with the fixing flange (12) is clamped inside the groove (13).

7. The pipeline connection structure of a vertical self-priming pump according to claim 1, characterized in that: An annular guide block (15) is bolted to the opposite side of the two connecting flanges (2), and a guide groove (11) for use with the annular guide block (15) is provided on the sleeve (5).

8. The pipeline connection structure of a vertical self-priming pump according to claim 1, characterized in that: The sleeve (5) is made of stainless steel.

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