Sealed annular jet self-priming pump

Abstract

The utility model relates to the technical field of jet self-priming pumps, and discloses a sealed annular jet self-priming pump which comprises a jet self-priming pump body, a water injection pipe, a water outlet pipe, a water inlet pipe, an external drain pipe and an external water conveying pipe. The water inlet pipe is connected to the right side of the jet self-priming pump body in a penetrating mode, first connecting flanges are fixed to the ends, away from the jet self-priming pump body, of the water outlet pipe and the water inlet pipe correspondingly, and second connecting flanges are fixed to the ends of the external water drainage pipe and the external water conveying pipe correspondingly. First connecting flanges are fixedly mounted on the second connecting flanges and the end parts of the water outlet pipe and the water inlet pipe and are mounted through bolts, so that the water outlet pipe and the external drain pipe as well as the water inlet pipe and the external water conveying pipe can be better butted and mounted, and the sealing performance is better after the water outlet pipe and the external drain pipe as well as the water inlet pipe and the external water conveying pipe are mounted; and leakage is not easy to generate.

Description

Technical Field

[0001] The utility model relates to the technical field of jet self-priming pumps, in particular to a sealed annular jet self-priming pump. Background Technique

[0002] Jet self-priming pumps are widely used for pumping water from wells in low water level areas and for household water use. Due to their high lift and large flow rate, they are especially suitable for water tower water supply and farmland irrigation. When equipped with a pressure tank and a pressure switch, they can be used as automatic pumps.

[0003] When a jet self-priming pump is connected to the inlet pipe and the outlet pipe, an external water pipe needs to be connected, and a threaded connection method is adopted. Frequent disassembly will cause the threads at the connection to slip, affecting the connection tightness.

[0004] In view of this, this technical solution proposes a sealed annular jet self-priming pump to better solve the above-mentioned problems. Content of the Utility Model

[0005] The purpose of the utility model is to provide a sealed annular jet self-priming pump to solve the above-mentioned problems.

[0006] The technical solution adopted by the utility model is as follows: A sealed annular jet self-priming pump includes a jet self-priming pump main body, a water injection pipe, an outlet pipe, an inlet pipe, an external drain pipe and an external water delivery pipe. The water injection pipe and the outlet pipe are connected through and penetrate the upper right side of the jet self-priming pump main body, and the inlet pipe penetrates and is connected to the right side of the jet self-priming pump main body;

[0007] At one end of the outlet pipe and the inlet pipe away from the jet self-priming pump main body, a first connection flange is fixed. At the ends of the external drain pipe and the external water delivery pipe, a second connection flange is fixed, and the second connection flange is fixedly installed with the first connection flange at the ends of the outlet pipe and the inlet pipe through bolts;

[0008] A positioning water stop groove is provided in the first connection flange fixed at the ends of the outlet pipe and the inlet pipe. At a position corresponding to the positioning water stop groove on the second connection flange fixed at the ends of the external drain pipe and the external water delivery pipe, a limit water stop ring is fixed, and the limit water stop ring is inserted into the positioning water stop groove. A sealing ring for sealing the positioning water stop groove is fixed at the bottom of the limit water stop ring;

[0009] Drainage covers are fixed at the ends of the outlet pipe and the external water delivery pipe. The drainage cover fixed at the end of the outlet pipe is inserted into the external drain pipe, and the drainage cover fixed at the end of the external water delivery pipe is inserted into the inlet pipe;

[0010] Limit rings are fixed at the ends of the drainage covers located inside the external drain pipe and the inlet pipe, and the limit rings are respectively in contact with the inner walls of the external drain pipe and the inlet pipe. A water-swellable water stop ring is fixed inside the limit ring.

[0011] In a preferred embodiment, a sealing plug is provided on the water injection pipe.

[0012] In a preferred embodiment, the second connecting flange and the first connecting flange are fixedly installed by bolts, and the outer diameters of the second connecting flange and the first connecting flange are the same.

[0013] In a preferred embodiment, the positioning water stop groove is welded to the second connecting flange, and the positioning water stop groove is adapted to the limiting water stop ring.

[0014] In a preferred embodiment, the sealing ring is a silica gel sealing ring, and the inner and outer diameters of the sealing ring are the same as those of the limiting water stop ring.

[0015] In a preferred embodiment, the drainage covers inserted into the external drainage pipe and the water inlet pipe are both conical structures, and the joints of the drainage covers with the water outlet pipe and the external water delivery pipe are welding structures.

[0016] In a preferred embodiment, an installation groove for installing and using a water-swelling water stop ring is formed inside the limiting ring, and the water-swelling water stop ring is sleeved in the installation groove and is respectively in contact with the inner walls of the external drainage pipe and the water inlet pipe.

[0017] In summary, due to the adoption of the above technical solutions, the beneficial effects of the present utility model are as follows: it is convenient to better dock and install the water outlet pipe and the external drainage pipe with the water inlet pipe and the external water delivery pipe, so that the sealing performance after the installation of the water outlet pipe and the external drainage pipe with the water inlet pipe and the external water delivery pipe is better, and leakage is not likely to occur.

[0018] 1. In the present utility model, the first connecting flange and the second connecting flange can be installed together by bolts, and at this time, the water outlet pipe and the external drainage pipe are docked and installed with the water inlet pipe and the external water delivery pipe.

[0019] 2. In the present utility model, by inserting the limiting water stop ring into the positioning water stop groove and cooperating with the sealing ring, the sealing performance between the first connecting flange and the second connecting flange can be achieved.

[0020] 3. In the present utility model, by fixing the drainage cover at the ends of the water outlet pipe and the external water delivery pipe and inserting the drainage cover into the external drainage pipe and the water inlet pipe, the water can be better drained into the water inlet pipe and the external drainage pipe. By fixing the limiting ring at the end of the drainage cover, at this time, through the cooperation of the limiting ring and the water-swelling water stop ring, the water flow at the water outlet of the drainage cover can be cut off and sealed, so that the sealing performance is better and leakage is not likely to occur. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 is a structural schematic diagram of the present utility model;

[0022] Figure 2 This is a sectional view of the installation structure of the water outlet pipe of the present utility model and the external drain pipe.

[0023] Figure 3 This is a schematic diagram of the installation structure of the water outlet pipe of the present utility model and the external drain pipe.

[0024] Markings in the figure: 1 - Jet self-priming pump main body; 2 - Water injection pipe; 3 - Water outlet pipe; 4 - Water inlet pipe; 5 - First connection flange; 6 - External drain pipe; 7 - External water delivery pipe; 8 - Second connection flange; 9 - Positioning water stop groove; 10 - Limit water stop ring; 11 - Sealing ring; 12 - Drainage cover; 13 - Limit ring; 14 - Water swelling water stop ring. Specific embodiments

[0025] To make the objectives, technical solutions, and advantages of the embodiments of the present utility model clearer, the technical solutions in the embodiments of the present utility model will be clearly and completely described below in conjunction with the embodiments of the present utility model. Apparently, the described embodiments are some, but not all, of the embodiments of the present utility model. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present utility model without making creative efforts shall fall within the protection scope of the present utility model.

[0026] The following will be combined with Figures 1-3 A sealed annular jet self-priming pump according to an embodiment of the present utility model will be described in detail.

[0027] Refer to Figures 1-3 As shown, a sealed annular jet self-priming pump includes a jet self-priming pump main body 1, a water injection pipe 2, a water outlet pipe 3, a water inlet pipe 4, an external drain pipe 6, and an external water delivery pipe 7. The water injection pipe 2 and the water outlet pipe 3 are connected through and arranged above the right side of the jet self-priming pump main body 1. A sealing plug is arranged on the water injection pipe 2. The water inlet pipe 4 is connected through and arranged on the right side of the jet self-priming pump main body 1.

[0028] Refer to Figures 1-3 As shown, first connection flanges 5 are fixed at one ends of the water outlet pipe 3 and the water inlet pipe 4 away from the jet self-priming pump main body 1. Second connection flanges 8 are fixed at the ends of the external drain pipe 6 and the external water delivery pipe 7. The second connection flange 8 and the first connection flanges 5 fixed at the ends of the water outlet pipe 3 and the water inlet pipe 4 are installed by bolts. The second connection flange 8 and the first connection flange 5 are fixedly installed by bolts, and the outer diameters of the second connection flange 8 and the first connection flange 5 are the same;

[0029] Refer to Figures 2-3As shown, a positioning water stop groove 9 is provided in the first connection flange 5 fixed to the ends of the water outlet pipe 3 and the water inlet pipe 4. A limit water stop ring 10 is fixed at the position of the second connection flange 8 fixed to the ends of the external drain pipe 6 and the external water delivery pipe 7 relative to the positioning water stop groove 9. The limit water stop ring 10 is inserted into the positioning water stop groove 9. The positioning water stop groove 9 is welded to the second connection flange 8, and the positioning water stop groove 9 is adapted to the limit water stop ring 10. A sealing ring 11 for sealing the positioning water stop groove 9 is fixed at the bottom of the limit water stop ring 10. The sealing ring 11 is a silica gel sealing ring, and the inner and outer diameters of the sealing ring 11 are the same as those of the limit water stop ring 10.

[0030] Reference Figures 2-3 As shown, drainage covers 12 are fixed to the ends of the water outlet pipe 3 and the external water delivery pipe 7. The drainage cover 12 fixed to the end of the water outlet pipe 3 is inserted into the external drain pipe 6, and the drainage cover 12 fixed to the end of the external water delivery pipe 7 is inserted into the water inlet pipe 4. The drainage covers 12 inserted into the internal parts of the external drain pipe 6 and the water inlet pipe 4 are both conical structures, and the connection parts of the drainage covers 12 with the water outlet pipe 3 and the external water delivery pipe 7 are welded structures.

[0031] Reference Figures 2-3 As shown, a limit ring 13 is fixed to the end of the drainage cover 12 located inside the external drain pipe 6 and the water inlet pipe 4, and the limit ring 13 is respectively in contact with the inner walls of the external drain pipe 6 and the water inlet pipe 4. A water swelling water stop ring 14 is fixed inside the limit ring 13. An installation groove for installing the water swelling water stop ring 14 is provided inside the limit ring 13, and the water swelling water stop ring 14 is sleeved in the installation groove and is respectively in contact with the inner walls of the external drain pipe 6 and the water inlet pipe 4.

[0032] Advantages of the present application: It is convenient to better connect and install the water outlet pipe 3 and the external drain pipe 6 with the water inlet pipe 4 and the external water delivery pipe 7, so that the sealing performance after the installation of the water outlet pipe 3 and the external drain pipe 6 with the water inlet pipe 4 and the external water delivery pipe 7 is better, and leakage is not likely to occur.

[0033] In this technical solution, the first connection flange 5 and the second connection flange 8 can be installed together through bolts, and at this time, the docking installation of the water outlet pipe 3 and the external drain pipe 6 with the water inlet pipe 4 and the external water delivery pipe 7 is completed.

[0034] In this technical solution, by inserting the limit water stop ring 10 into the internal part of the positioning water stop groove 9 and cooperating with the sealing ring 11 at the same time, the sealing performance between the first connection flange 5 and the second connection flange 8 can be completed.

[0035] In this technical solution, by fixing the drainage cover 12 at the ends of the outlet pipe 3 and the external water delivery pipe 7 and inserting the drainage cover 12 into the external drainage pipe 6 and the water inlet pipe 4, the water can be better drained into the water inlet pipe 4 and the external drainage pipe 6. By fixing the limit ring 13 at the end of the drainage cover 12, at this time, through the cooperation of the limit ring 13 and the water-swelling water stop ring 14, the water flow at the outlet of the drainage cover 12 can be cut off and sealed, making the sealing performance better and not prone to leakage.

[0036] The above embodiments only represent several implementation manners of the present utility model, and the description thereof is relatively specific and detailed, but it should not be construed as a limitation to the scope of the utility model patent. It should be noted that for those of ordinary skill in the art, without departing from the concept of the present utility model, several modifications and improvements can still be made, and these all belong to the protection scope of the present utility model. Therefore, the protection scope of the present utility model patent shall be subject to the appended claims.

Claims

1. A sealed annular jet self-priming pump, comprising a jet self-priming pump body, a water injection pipe, a water outlet pipe, a water inlet pipe, an external drainage pipe and an external water delivery pipe, characterized in that: The water injection pipe and the water outlet pipe are connected through the upper right side of the jet self-priming pump body, and the water inlet pipe is connected through the right side of the jet self-priming pump body; The outlet pipe and the inlet pipe are both fixed with a first connection flange at one end away from the jet self-priming pump body, the ends of the external drainage pipe and the external water delivery pipe are both fixed with a second connection flange, and the second connection flange is fixedly installed with the first connection flange at the ends of the outlet pipe and the inlet pipe by bolts; A positioning water stop groove is provided in the first connection flange to which the ends of the water outlet pipe and the water inlet pipe are fixed, a limiting water stop ring is fixed at a position relative to the positioning water stop groove on the second connection flange to which the ends of the external drainage pipe and the external water supply pipe are fixed, and the limiting water stop ring is inserted in the positioning water stop groove, and a sealing ring for sealing the positioning water stop groove is fixed at the bottom of the limiting water stop ring; The outlet pipe and the end of the external water pipe are both fixed with drainage covers, the drainage cover fixed at the outlet pipe end is plugged into the external drain pipe, and the drainage cover fixed at the external water pipe end is plugged into the water inlet pipe; A limiting ring is fixed at the end of the drainage cover located inside the external drainage pipe and the water inlet pipe, and the limiting ring is respectively fitted with the inner wall of the external drainage pipe and the water inlet pipe, and a water-swelling water-stop ring is fixed inside the limiting ring.

2. A sealed annular jet self-priming pump as claimed in claim 1, characterized in that: A sealing plug is arranged on the water injection pipe.

3. A sealed annular jet self-priming pump as claimed in claim 1, characterized in that: The second connecting flange is fixedly installed with the first connecting flange by means of bolts, and the second connecting flange and the first connecting flange have the same outer diameter.

4. A sealed annular jet self-priming pump as claimed in claim 1, characterized in that: The positioning water stop groove is welded to the second connecting flange, and the positioning water stop groove is matched with the limiting water stop ring.

5. A sealed annular jet self-priming pump as claimed in claim 1, characterized in that: The sealing ring is a silicone sealing ring, and the inner and outer diameters of the sealing ring and the limiting water stop ring are the same.

6. A sealed annular jet self-priming pump as claimed in claim 1, characterized in that: The drainage hood inserted into the external drainage pipe and the water inlet pipe are both cone structures, and the connection between the drainage hood, the water outlet pipe and the external water delivery pipe is a welding structure.

7. A sealed annular jet self-priming pump as claimed in claim 1, characterized in that: An installation groove for installing a water-swellable water-stop ring is provided inside the limiting ring, and the water-swellable water-stop ring is sleeved in the installation groove and fits against the inner walls of the external drainage pipe and the water inlet pipe respectively.

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