Submersible pump water inlet section mounting structure

Abstract

The utility model provides a submersible pump water inlet section mounting structure, and belongs to the technical field of water pumps. The submersible pump water inlet section mounting structure comprises a bearing seat, a volute and a water inlet section which are sequentially arranged from top to bottom, the water inlet section comprises a bottom plate and a circle of positioning pipe vertically formed on the bottom plate, the positioning pipe abuts against the bottom of the volute, and the two ends of the positioning pipe are open; a threaded hole is vertically formed in the bottom wall of the bearing seat, and the threaded hole is a blind hole; the threaded holes and the positioning pipes are the same in number and correspond one to one in position, a bolt is arranged in each positioning pipe, the rod portion of each bolt penetrates through the volute and is screwed into the corresponding threaded hole, and the head portion of each bolt is tightly pressed on the inner wall of the corresponding positioning pipe; and plugging pieces for sealing the lower ports of all the positioning pipes are also fixed on the bottom plate. The submersible pump water inlet section installation structure can achieve hidden installation of the bolts.

Description

Technical Field

[0001] The utility model belongs to the technical field of water pumps and relates to a submersible pump, in particular to a submersible pump water inlet section installation structure. Background Art

[0002] Submersible pump is a multifunctional water-lifting equipment. Its working principle is to use an electric motor to drive the impeller to rotate at high speed, convert mechanical energy into liquid energy under the action of centrifugal force, and thus lift the liquid (mainly water) from a low place to a high place.

[0003] Existing submersible pumps, such as a submersible pump base disclosed in the China Patent Library (application number: 201821864361.0), include a base plate, an impeller, a volute and a water inlet section connected in sequence, the impeller is located in the volute and fixedly connected to the motor shaft of the submersible pump, the bottom of the volute is provided with a through hole and communicated with the inside of the water inlet section, the side of the volute is provided with a water outlet, and is characterized in that a plurality of integral columns are arranged circumferentially on the edge of the water inlet section, the columns are trapezoidal, and the two side edges of the columns are connected to the bottom surface as a cavity structure to form a water inlet channel, the water inlet section has a plurality of baffles integrally connected to the columns, the water inlet section has studs at the intervals between the columns, and the studs are threaded, the edge of the base plate radially protrudes to form a connecting ear that matches the studs, and is fixed by bolts, and the bolts simultaneously pass through the edge of the volute to fix the base plate, the volute and the water inlet section as a whole to form a submersible pump base.

[0004] In the above-mentioned submersible pump base, the bolts are arranged vertically, and the bolt heads are completely exposed to the outside. There is a probability that the bolts will loosen due to external force collision, resulting in water leakage at the connection between the base plate and the volute, affecting the normal operation of the submersible pump. Utility Model Content

[0005] The utility model aims to solve the above problems in the prior art and proposes a submersible pump water inlet section installation structure which can realize bolt hidden installation.

[0006] The purpose of the utility model can be achieved through the following technical solutions: a submersible pump water inlet section installation structure, including a bearing seat, a volute and a water inlet section arranged in sequence from top to bottom, the water inlet section includes a bottom plate and a circle of positioning tubes vertically formed on the bottom plate, and the positioning tubes are pressed against the bottom of the volute, and are characterized in that both ends of the positioning tubes are open; threaded holes are vertically opened on the bottom wall of the bearing seat, and the threaded holes are blind holes; the threaded holes and positioning tubes have the same number and their positions correspond one to one, each positioning tube is provided with a bolt, the bolt rod passes through the volute and is screwed into the corresponding threaded hole, and the bolt head is pressed tightly against the inner wall of the positioning tube; a sealing member that closes the lower ports of all positioning tubes is also fixed to the bottom plate.

[0007] The threaded holes are set as blind holes, and the plugging pieces close the lower ports of each positioning tube, so that the bolts are hidden in a closed space. This not only protects the bolts from loosening due to external collisions, but also enhances the structural stability of the submersible pump and makes the overall appearance of the submersible pump more simple and beautiful.

[0008] In the above-mentioned submersible pump water inlet section installation structure, a protrusion is vertically formed on the upper side of the above-mentioned bearing seat, the number of the protrusion and the threaded holes are the same, and the upper ends of the threaded holes extend to the corresponding protrusions to extend the length of the threaded holes, enhance the bolt locking strength, and make the submersible pump structure more stable.

[0009] In the above-mentioned submersible pump water inlet joint installation structure, a circle of convex ribs is formed on the outer wall of the convex column, and the length of the convex ribs extends vertically. The convex ribs are provided to effectively strengthen the strength of the convex column and make the bolt connection more stable.

[0010] In the above-mentioned submersible pump water inlet section installation structure, the plugging member includes a sealing column, and the sealing column is inserted into the lower end of each positioning tube, and the outer wall of the sealing column is in close contact with the inner wall of the corresponding positioning tube to form a seal. The above-mentioned design has the advantages of simple structure and convenient installation.

[0011] In the above-mentioned submersible pump water inlet section installation structure, the plugging member also includes a horizontally arranged connecting plate, which is attached to the bottom plate and the two are fixedly connected, and the above-mentioned sealing column is formed on the top of the connecting plate. The connecting plate connects all the sealing columns together, so that all the positioning tubes can be inserted into the corresponding positioning tubes at one time, which is effective and convenient for assembly.

[0012] In the above-mentioned submersible pump water inlet joint installation structure, the connecting plate is composed of a circular plate body and a circle of connecting strips formed on the outer side wall of the circular plate body, the connecting strips and the sealing columns are the same in number, and each sealing column is formed on the corresponding connecting strip. The connecting plate is composed of a circular plate body and a circle of connecting strips, which can reduce the material input of the connecting plate and reduce the cost.

[0013] In the above-mentioned submersible pump water inlet joint installation structure, a slot with a shape and size matching that of the connecting plate is provided on the bottom wall of the bottom plate, the connecting plate is clamped in the slot, and the lower end of the inner hole of the positioning tube extends to the bottom wall of the slot. The connecting plate is positioned by being clamped into the slot, which has the advantages of simple structure and stable installation.

[0014] In the above-mentioned submersible pump water inlet section installation structure, the connecting plate and the sealing column are an integrated structure and are formed by injection molding.

[0015] Compared with the prior art, the submersible pump water inlet section installation structure has the following advantages:

[0016] 1. Set the threaded hole as a blind hole, and the plugging piece closes the lower port of each positioning tube, so that the bolt is hidden in a closed space. This not only protects the bolt to prevent it from loosening due to external collision, enhances the structural stability of the submersible pump, but also makes the overall appearance of the submersible pump more concise and beautiful.

[0017] 2. There are vertically formed bosses on the upper side of the bearing seat. The number of bosses and threaded holes is the same, and the upper ends of the threaded holes extend to the corresponding bosses to extend the length of the threaded holes, enhance the bolt locking strength, and make the submersible pump structure more stable.

[0018] 3. The connecting plate connects all the sealing columns together so that all the positioning tubes can be inserted into the corresponding positioning tubes at one time, which is effective and convenient for assembly. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a three-dimensional schematic diagram of a submersible pump.

[0020] Figure 2 It is a schematic diagram of the installation structure of the water inlet section of the submersible pump.

[0021] Figure 3 It is a connection diagram between the water inlet section and the connecting plate.

[0022] Figure 4 It is a structural diagram of the water inlet section.

[0023] In the figure, 1, bearing seat; 1a, convex column; 1b, convex rib; 2, volute; 3, water inlet section; 3a, bottom plate; 3b, positioning tube; 3c, baffle bar; 3d, slot; 4, bolt; 5, connecting plate; 5a, sealing column; 5b, circular plate body; 5c, connecting bar. DETAILED DESCRIPTION

[0024] The following are specific embodiments of the present invention and the accompanying drawings to further describe the technical solution of the present invention, but the present invention is not limited to these embodiments.

[0025] like Figure 1 and Figure 2 As shown, the water inlet section installation structure of the submersible pump includes a bearing seat 1, a volute 2 and a water inlet section 3 which are arranged in sequence from top to bottom, and the bearing seat 1, the volute 2 and the water inlet section 3 are coaxially arranged.

[0026] in,

[0027] The bearing seat 1 is pressed against the top wall of the volute 2 , and in actual products, an annular rubber pad is clamped between the bearing seat 1 and the volute 2 to form a reliable seal between the bearing seat 1 and the volute 2 .

[0028] The water inlet section 3 includes a bottom plate 3a and a circle of positioning tubes 3b formed vertically on the bottom plate 3a, and the positioning tubes 3b are pressed against the bottom of the volute 2. In the actual product, the number of positioning tubes 3b is 3 and they are evenly spaced along the circumference of the volute 2; a circle of baffles 3c is formed vertically on the bottom plate 3a, and the baffles 3c and the positioning tubes 3b are distributed along the circumference of the volute 2. The baffles 3c are generally in an inverted shape and are used to intercept strip-shaped flocculants.

[0029] like Figure 2 As shown, both ends of the positioning tube 3b are open; a threaded hole is vertically opened on the bottom wall of the bearing seat 1, and the threaded hole is a blind hole; a through hole is vertically penetrated on the volute 2, and the number of the threaded holes, the through holes and the positioning tube 3b are the same and the positions correspond to each other. A bolt 4 is arranged in each positioning tube 3b, and the rod of the bolt 4 passes through the corresponding through hole and is screwed into the corresponding threaded hole. The head of the bolt 4 is pressed tightly against the inner wall of the positioning tube 3b to stably connect the bearing seat 1, the volute 2 and the water inlet section 3 together. A plugging piece that closes the lower ports of all positioning tubes 3b is also fixed on the bottom plate 3a.

[0030] The threaded hole is set as a blind hole, and the sealing piece closes the lower port of each positioning tube 3b, so that the bolt 4 is hidden in a closed space. This not only protects the bolt 4 and prevents it from loosening due to external collision, but also enhances the structural stability of the submersible pump and makes the overall appearance of the submersible pump more simple and beautiful.

[0031] Further explanation, such as Figure 1 and Figure 2 As shown, a boss 1a is vertically formed on the upper side of the bearing seat 1, and the number of bosses 1a and threaded holes is the same, and the upper end of the threaded hole extends to the corresponding boss 1a, so that the length of the threaded hole can be effectively extended, the locking strength of the bolt 4 can be enhanced, and the submersible pump structure can be more stable. Preferably, a circle of ribs 1b is formed on the outer wall of the boss 1a, and the length of the ribs 1b extends vertically to effectively enhance the strength of the boss 1a and make the connection of the bolt 4 more stable.

[0032] In this embodiment,

[0033] An annular limiting surface is horizontally formed on the inner wall of the positioning tube 3b, and the head of the bolt 4 is pressed on the limiting surface to enhance the locking effect.

[0034] like Figures 2 to 4As shown, the plugging member includes a sealing column 5a, and the sealing column 5a is inserted into the lower end of each positioning tube 3b, and the outer wall of the sealing column 5a is in close contact with the inner wall of the corresponding positioning tube 3b to form a seal. The above design has the advantages of simple structure and easy installation. Further explanation, the plugging member also includes a horizontally arranged connecting plate 5, the connecting plate 5 is attached to the bottom plate 3a and the two are fixedly connected, and the sealing column 5a is formed on the top of the connecting plate 5. The connecting plate 5 connects all the sealing columns 5a together, so that all the positioning tubes 3b can be inserted into the corresponding positioning tubes 3b at one time, which is effective and convenient for assembly.

[0035] like Figure 3 and Figure 4 As shown, the specific structure of the connecting plate 5 is as follows: the connecting plate 5 is composed of a circular plate body 5b and a circle of connecting strips 5c formed on the outer side wall of the circular plate body 5b, the number of connecting strips 5c and the number of sealing columns 5a are the same, and each sealing column 5a is formed on the corresponding connecting strip 5c. The connecting plate 5 is composed of a circular plate body 5b and a circle of connecting strips 5c, which can reduce the material input of the connecting plate 5 and reduce the cost. Preferably, the connecting plate 5 and the sealing column 5a are an integrated structure and are formed by injection molding.

[0036] The connection plate 5 is installed as follows: a slot 3d is provided on the bottom wall of the bottom plate 3a, the shape and size of which match the connection plate 5, the connection plate 5 is clamped in the slot 3d, and the lower end of the inner hole of the positioning tube 3b extends to the bottom wall of the slot 3d. The connection plate 5 is positioned by being clamped into the slot 3d, which has the advantages of simple structure and stable installation. Naturally, the connection plate 5 can also be positioned by adopting the technical solution of "the connection plate 5 is fixedly connected to the bottom plate 3a by screws".

[0037] The specific embodiments described herein are merely examples of the spirit of the present invention. Those skilled in the art may make various modifications or additions to the specific embodiments described or replace them in similar ways, but they will not deviate from the spirit of the present invention or exceed the scope defined by the appended claims.

Claims

1. A submersible pump water inlet section installation structure, comprising a bearing seat (1), a volute (2) and a water inlet section (3) arranged in sequence from top to bottom, the water inlet section (3) comprising a bottom plate (3a) and a circle of positioning tubes (3b) vertically formed on the bottom plate (3a), and the positioning tubes (3b) are pressed against the bottom of the volute (2), characterized in that: Both ends of the positioning tube (3b) are open; a threaded hole is vertically opened on the bottom wall of the bearing seat (1), and the threaded hole is a blind hole; the threaded holes and the positioning tubes (3b) are of the same number and have corresponding positions; each positioning tube (3b) is provided with a bolt (4); the rod of the bolt (4) passes through the volute (2) and is screwed into the corresponding threaded hole, and the head of the bolt (4) is tightly pressed against the inner wall of the positioning tube (3b); and a plugging member for closing the lower ports of all the positioning tubes (3b) is also fixed on the bottom plate (3a).

2. The submersible pump water inlet section installation structure according to claim 1 is characterized in that: The upper side of the bearing seat (1) is vertically formed with a boss (1a), the boss (1a) and the threaded holes are of the same number, and the upper ends of the threaded holes extend to the corresponding bosses (1a).

3. The submersible pump water inlet section installation structure according to claim 2 is characterized in that: A circle of convex ribs (1b) is formed on the outer side wall of the convex column (1a), and the length of the convex ribs (1b) extends vertically.

4. The submersible pump water inlet section installation structure according to claim 1, 2 or 3, characterized in that: The blocking member comprises a sealing column (5a), and the sealing column (5a) is inserted into the lower end of each positioning tube (3b), and the outer wall of the sealing column (5a) is in close contact with the inner wall of the corresponding positioning tube (3b) to form a seal.

5. The submersible pump water inlet section installation structure according to claim 4, characterized in that: The plugging member also includes a horizontally arranged connecting plate (5), the connecting plate (5) being attached to the bottom plate (3a) and the two being fixedly connected, and the sealing column (5a) is formed on the top of the connecting plate (5).

6. The submersible pump water inlet section installation structure according to claim 5, characterized in that: The connecting plate (5) is composed of a circular plate body (5b) and a circle of connecting strips (5c) formed on the outer side wall of the circular plate body (5b); the connecting strips (5c) and the sealing columns (5a) are of the same number, and each sealing column (5a) is formed on a corresponding connecting strip (5c).

7. The submersible pump water inlet section installation structure according to claim 6, characterized in that: A slot (3d) having a shape and size matching those of the connecting plate (5) is provided on the bottom wall of the bottom plate (3a); the connecting plate (5) is clamped in the slot (3d), and the lower end of the inner hole of the positioning tube (3b) extends to the bottom wall of the slot (3d).

8. The submersible pump water inlet section installation structure according to claim 6, characterized in that: The connecting plate (5) and the sealing column (5a) are an integral structure and are formed by injection molding.

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