Impeller structure of boiler circulating pump

Abstract

The utility model discloses a boiler circulating pump impeller structure, and belongs to the technical field of circulating pump impellers, the boiler circulating pump impeller structure comprises a main body module and a mounting module, the main body module comprises an impeller seat, a sealing groove is formed in one side of the impeller seat, and a sealing piece is movably clamped in the sealing groove; a shaft rod is fixedly connected to the side, away from the impeller base, of the sealing piece, the mounting module comprises an octagonal groove formed in one side of the inner wall of the sealing groove, an octagonal rod is movably connected into the octagonal groove and fixedly connected with the sealing piece, and eight sliding grooves are annularly formed in the outer surface of the impeller base at equal intervals. Through the arrangement of the octagonal grooves, the octagonal rods, the clamping assemblies and the clamping strips, the structure can achieve independent replacement of damaged blades, disassembly and replacement of the whole are not needed, waste caused by overall replacement is avoided, and then the overall practicability is improved.

Description

Technical Field

[0001] The present application relates to the technical field of circulating pump impellers, and more specifically, to a boiler circulating pump impeller structure. Background Art

[0002] A boiler is an energy conversion device. The energy input to the boiler includes chemical energy and electrical energy in the fuel. The boiler outputs steam, high-temperature water or organic heat carrier with a certain amount of thermal energy. The boiler circulating pump refers to the pump for circulating liquid in the device, among which the impeller is an indispensable component of the boiler circulating pump. The impeller refers to the general term for the impeller disc and the rotating blades installed on it.

[0003] According to the search, the Chinese patent with patent number CN206144840U discloses an impeller structure of a water pump, including a rotating shaft sleeve and a cylindrical blade seat arranged at the front end of the rotating shaft sleeve, the blades of the impeller are fixed on the outer peripheral surface of the blade seat, and the rear end of the rotating shaft sleeve is provided with a magnetic steel seat for fixing the rotor magnetic steel, the magnetic steel seat includes a front baffle and a rear baffle arranged along the axial direction of the rotating shaft sleeve, and the front baffle, the rear baffle and the rotating shaft sleeve form a magnetic steel seat, and a cylindrical rotor sealing seat is provided between the front baffle and the blade seat, and the blade seat, blades, sealing seat and magnetic steel seat are an integrated structure. The utility model greatly simplifies the internal structure of the water pump, reduces the production cost, solves the problem that the rotor and impeller of the prior art are assembled in a split form, the structure is complex, and the cost is high, and has high practical value.

[0004] With respect to the above-mentioned related technologies, the applicant believes that the current circulating pump impeller, during use, is usually an integrated structure of the above-mentioned patent. Although the structure is simple, since its blades are an integrated structure, when a single blade is damaged, the entire impeller needs to be replaced, and the damaged blade cannot be removed and replaced, resulting in a large waste of resources as a whole. For this reason, we propose a boiler circulating pump impeller structure. Utility Model Content

[0005] In order to solve the above problems, the present application provides a boiler circulating pump impeller structure, which adopts the following technical solutions:

[0006] A boiler circulating pump impeller structure comprises a main body module and an installation module, the main body module comprises an impeller seat, a sealing groove is provided on one side of the impeller seat, a sealing sheet is movably connected inside the sealing groove, a shaft rod is fixedly connected to the side of the sealing sheet away from the impeller seat, the installation module comprises an octagonal groove provided on one side of the inner wall of the sealing groove, an octagonal rod is movably connected inside the octagonal groove, the octagonal rod is fixedly connected to the sealing sheet, eight slide grooves are provided in an annular shape and at equal distances on the outer surface of the impeller seat, the eight slide grooves all extend to one side of the impeller seat, the interiors of the eight slide grooves are all slidably connected with card strips, the outer surfaces of the eight card strips are all fixedly connected with blades, the inner side wall of the eight-sided groove is provided with eight card connection components in an annular shape and at equal distances, the eight card connection components are respectively connected to the eight card strips, and the outer surfaces of the eight-sided rods are in conflict with the eight card connection components.

[0007] Furthermore, the clamping assembly includes a mounting groove provided on the inner side wall of the octagonal groove, a clamping block is slidably connected inside the mounting groove, a clamping groove is provided on the outer surface of one of the clamping strips, one end of the clamping block is movably clamped inside the clamping groove, and the other end of the clamping block is fixedly connected to a right-angled trapezoidal block, and the outer surface of the right-angled trapezoidal block contacts the outer surface of the octagonal rod.

[0008] By adopting the above technical solution, the blades can be fixed by inserting the clamping block into the clamping slot.

[0009] Furthermore, the clamping assembly also includes a movable groove opened on one side of the installation groove, a movable block is slidably connected inside the movable groove, the movable block is fixedly connected to the clamping block, and a reset spring is fixedly connected between the movable block and one end of the inner wall of the movable groove.

[0010] By adopting the above technical solution and setting a reset spring, the clamping block can be reset when the eight-sided rod is drawn out.

[0011] Furthermore, the cross-sections of the eight clamping strips and the eight sliding grooves are all T-shaped.

[0012] By adopting the above technical solution, it is easy to fix the blades, making the blade installation more stable.

[0013] Furthermore, the installation module also includes eight reinforcing grooves that are arranged in a circular shape and at equal distances on the inner wall of the octagonal groove, and the interiors of the eight octagonal grooves are all slidably connected with reinforcing strips, and the eight reinforcing strips are all fixedly connected to the outer surface of the octagonal groove.

[0014] By adopting the above technical solution, the connection of the eight-sided rods is strengthened and the tightness of the connection is improved.

[0015] Furthermore, one end of the eight reinforcement grooves extends to the interior of the sealing groove, and the eight reinforcement grooves and the eight clamping components are distributed in an alternating manner.

[0016] By adopting the above technical solution, eight reinforcement grooves and eight clamping components surround the outer surface of the eight-side rod.

[0017] Furthermore, the main body module also includes an annular groove opened on one side of the inner wall of the sealing groove, a sealing ring is movably clamped inside the annular groove, the sealing ring is fixedly connected to the sealing sheet, a sealing rubber ring is fixedly connected to one side of the inner wall of the annular groove, and the sealing rubber ring is in contact with the sealing ring.

[0018] By adopting the above technical solution, the sealing performance is improved, thereby preventing water from entering the octagonal groove.

[0019] Furthermore, the main body module also includes a plurality of mounting bolts which are threadedly connected between the sealing sheet and the inside of the impeller seat.

[0020] By adopting the above technical solution, the sealing sheet and the impeller seat can be connected.

[0021] In summary, this application includes the following beneficial technical effects:

[0022] (1) The present application adopts the arrangement of the octagonal groove, the octagonal rod, the clamping assembly and the clamping strip, so that the present structure can realize the replacement of damaged blades individually without disassembling and replacing the entire structure, thereby avoiding waste caused by replacement of the entire structure and improving the overall practicality;

[0023] (2) The present application improves the sealing effect of the octagonal groove by setting a sealing groove, a sealing sheet, a sealing ring and a sealing rubber ring, thereby preventing water from entering the interior of the octagonal groove. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 This is a schematic diagram of the overall structure of this application;

[0025] Figure 2 This is a schematic diagram of the cross-sectional structure of the impeller seat of the present application;

[0026] Figure 3 This is a schematic diagram of the explosion structure of the sealing ring and reinforcement strip of this application;

[0027] Figure 4 This is an enlarged structural diagram of point A of this application.

[0028] Description of the numbers in the figure:

[0029] 100, main body module; 110, impeller seat; 120, sealing groove; 130, sealing sheet; 140, shaft; 150, sealing ring; 160, sealing rubber ring; 170, mounting bolts;

[0030] 200, mounting module; 210, octagonal groove; 220, octagonal rod; 230, snap-in assembly; 231, clamping block; 232, right-angle trapezoidal block; 233, movable groove; 234, movable block; 235, reset spring; 240, clamping strip; 250, blade; 260, reinforcement groove; 270, reinforcement strip. DETAILED DESCRIPTION

[0031] The technical solutions in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application; obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments, and all other embodiments obtained by ordinary technicians in this field based on the embodiments in the present application without making creative work are within the scope of protection of the present application.

[0032] In the description of the present application, it should be noted that the terms "upper", "lower", "inner", "outer", "top / bottom" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific position, be constructed and operated in a specific position, and therefore cannot be understood as limiting the present application. In addition, the terms "first" and "second" are used for descriptive purposes only, and cannot be understood as indicating or implying relative importance.

[0033] In the description of this application, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "provided with", "set / connected", "connected", etc. should be understood in a broad sense. For example, "connected" 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 a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to specific circumstances.

[0034] The following is combined with Figure 1-4 This application is described in further detail.

[0035] See also Figure 1-4A boiler circulating pump impeller structure includes a main body module 100 and an installation module 200. The main body module 100 includes an impeller seat 110. A sealing groove 120 is provided on one side of the impeller seat 110. A sealing sheet 130 is movably connected inside the sealing groove 120. A shaft rod 140 is fixedly connected to the side of the sealing sheet 130 away from the impeller seat 110. The installation module 200 includes an octagonal groove 210 provided on one side of the inner wall of the sealing groove 120. An octagonal rod 220 is movably connected inside the octagonal groove 210. The octagonal rod 220 is fixedly connected to the shaft rod 140. 0 is fixedly connected to the sealing sheet 130, the outer surface of the impeller seat 110 is annularly provided with eight slide grooves at equal distances, the eight slide grooves all extend to one side of the impeller seat 110, the interiors of the eight slide grooves are slidably connected with a clamping strip 240, the outer surfaces of the eight clamping strips 240 are fixedly connected with blades 250, the inner side wall of the octagonal groove 210 is annularly provided with eight clamping components 230 at equal distances, the eight clamping components 230 are respectively connected to the eight clamping strips 240, and the outer surfaces of the octagonal rods 220 are in conflict with the eight clamping components 230.

[0036] During use, if blade 250 is damaged, the user can pull out octagonal rod 220 from octagonal rod 220 to release the connection between clamping assembly 230 and octagonal rod 220, thereby resetting clamping assembly 230 and withdrawing the interior of clamping strip 240 to release the fixation of clamping strip 240. Subsequently, the corresponding clamping strip 240 can be slid out of the slide groove to take out the damaged blade 250, and the clamping strip 240 on the new blade 250 can be slid back into the slide groove and inserted back into the octagonal rod 220 to reinstall the blade 250. This allows the impeller structure to disassemble and replace individually damaged blades 250, thereby avoiding waste on overall replacement.

[0037] The clamping assembly 230 includes a mounting groove provided on the inner wall of the octagonal groove 210, and a clamping block 231 is slidably connected inside the mounting groove. A clamping groove is provided on the outer surface of one clamping strip 240, and one end of the clamping block 231 is movably clamped inside the clamping groove. A right-angled trapezoidal block 232 is fixedly connected to the other end of the clamping block 231, and the outer surface of the right-angled trapezoidal block 232 is in contact with the outer surface of the octagonal rod 220. The clamping assembly 230 also includes a movable groove 233 provided on one side of the mounting groove, and a movable block 234 is slidably connected inside the movable groove 233. The movable block 234 is fixedly connected to the clamping block 231, and a reset spring 235 is fixedly connected between the movable block 234 and one end of the inner wall of the movable groove 233. The cross-sections of the eight clamping strips 240 and the eight sliding grooves are all T-shaped.

[0038] By pulling out the octagonal rod 220, the right-angled trapezoidal block 232 is released from contact with the octagonal rod 220, so that the reset spring 235 contracts to pull the movable block 234 and the block 231 to reset, so that the block 231 is withdrawn from the interior of the slot, and the fixation of the card strip 240 is released. Subsequently, the corresponding card strip 240 is slid out of the interior of the slide slot, and the damaged blade 250 can be taken out, and the card strip 240 on the new blade 250 is slid back into the slide slot and inserted back into the octagonal rod 220. The octagonal rod 220 gradually pushes the block 231 back into the slot through the hypotenuse of the right-angled trapezoidal block 232, so that the blade 250 can be reinstalled, so that the impeller structure can disassemble and replace a single damaged blade 250, thereby avoiding waste of overall replacement.

[0039] The installation module 200 also includes eight reinforcing grooves 260 that are equidistantly arranged in an annular shape on the inner wall of the octagonal groove 210. The interiors of the eight octagonal grooves 210 are all slidably connected with reinforcing strips 270. The eight reinforcing strips 270 are all fixedly connected to the outer surface of the octagonal groove 210. One end of the eight reinforcing grooves 260 extends to the interior of the sealing groove 120. The eight reinforcing grooves 260 and the eight snap-on assemblies 230 are staggered. The main body module 100 also includes an annular groove arranged on one side of the inner wall of the sealing groove 120. A sealing ring 150 is movably snap-connected inside the annular groove. The sealing ring 150 is fixedly connected to the sealing sheet 130. A sealing rubber ring 160 is fixedly connected to one side of the inner wall of the annular groove. The sealing rubber ring 160 conflicts with the sealing ring 150. The main body module 100 also includes a plurality of mounting bolts 170 that are all threadedly connected between the sealing sheet 130 and the interior of the impeller seat 110.

[0040] When the octagonal rod 220 is inserted back into the octagonal groove 210, the reinforcing strip 270 will be inserted into the reinforcing groove 260, and the sealing sheet 130 will be closed inside the sealing groove 120. At the same time, the sealing ring 150 will also be inserted into the annular groove and contact the sealing rubber ring 160. Through the cooperation of the annular groove, the sealing ring 150 and the sealing rubber ring 160, the sealing performance can be further enhanced to prevent water from entering the octagonal groove 210. Through the setting of the reinforcing strip 270, the connection between the octagonal rod 220 and the octagonal groove 210 can be strengthened. The installation can be completed by subsequently installing the mounting bolts 170.

[0041] The implementation principle of the embodiment of the present application is as follows: during use, if the blade 250 is damaged, the user can pull out the octagonal rod 220 from the octagonal rod 220, so that the right-angled trapezoidal block 232 is released from the contact with the octagonal rod 220, so that the reset spring 235 contracts to pull the movable block 234 and the clamping block 231 to reset, so that the clamping block 231 is withdrawn from the inside of the clamping slot, and the fixation of the clamping strip 240 is released. Subsequently, the corresponding clamping strip 240 is slid out of the inside of the slide slot, and the damaged blade 250 can be taken out, and the clamping strip 240 on the new blade 250 is slid back into the slide slot and inserted back into the octagonal rod 220. The octagonal rod 220 gradually pushes the clamping block 231 back into the slot through the hypotenuse of the right-angled trapezoidal block 232, and the The reinstallation of the blades 250 allows the impeller structure to disassemble and replace individually damaged blades 250, thereby avoiding waste in overall replacement. When the octagonal rod 220 is inserted back into the octagonal groove 210, the reinforcing strip 270 will be inserted into the reinforcing groove 260, and the sealing sheet 130 will be closed inside the sealing groove 120. At the same time, the sealing ring 150 will also be inserted into the annular groove and contact the sealing rubber ring 160. Through the cooperation of the annular groove, the sealing ring 150 and the sealing rubber ring 160, the sealing can be further enhanced to prevent water from entering the octagonal groove 210. Through the setting of the reinforcing strip 270, the connection between the octagonal rod 220 and the octagonal groove 210 can be strengthened. The installation can be completed by subsequently installing the mounting bolts 170.

[0042] The above are all preferred embodiments of the present application, and the protection scope of the present application is not limited thereto. Therefore, any equivalent changes made according to the structure, shape, and principle of the present application should be included in the protection scope of the present application.

Claims

1. A boiler circulating pump impeller structure, comprising a main body module (100) and a mounting module (200), characterized in that: The main body module (100) comprises an impeller seat (110), a sealing groove (120) is provided on one side of the impeller seat (110), a sealing sheet (130) is movably engaged inside the sealing groove (120), and a shaft (140) is fixedly connected to the side of the sealing sheet (130) away from the impeller seat (110); The mounting module (200) comprises an octagonal groove (210) provided on one side of the inner wall of the sealing groove (120); an octagonal rod (220) is movably connected inside the octagonal groove (210); the octagonal rod (220) is fixedly connected to the sealing sheet (130); the outer surface of the impeller seat (110) is provided with eight slide grooves at equal intervals in an annular shape; the eight slide grooves all extend to one side of the impeller seat (110); the interiors of the eight slide grooves are all slidably connected with a clamping strip (240); the outer surfaces of the eight clamping strips (240) are all fixedly connected with blades (250); the inner side wall of the octagonal groove (210) is provided with eight clamping assemblies (230) at equal intervals in an annular shape; the eight clamping assemblies (230) are respectively connected to the eight clamping strips (240), and the outer surfaces of the eight slide grooves are in contact with the eight clamping assemblies (230).

2. A boiler circulation pump impeller structure according to claim 1, characterized in that: The clamping assembly (230) comprises a mounting groove provided on the inner side wall of the octagonal groove (210), a clamping block (231) being slidably connected inside the mounting groove, a clamping groove being provided on the outer surface of one of the clamping strips (240), one end of the clamping block (231) being movably clamped inside the clamping groove, and a right-angled trapezoidal block (232) being fixedly connected to the other end of the clamping block (231), and the outer surface of the right-angled trapezoidal block (232) being in contact with the outer surface of the octagonal rod (220).

3. A boiler circulation pump impeller structure according to claim 2, characterized in that: The clamping assembly (230) further comprises a movable groove (233) provided on one side of the installation groove, a movable block (234) being slidably connected inside the movable groove (233), the movable block (234) being fixedly connected to the clamping block (231), and a return spring (235) being fixedly connected between the movable block (234) and one end of the inner wall of the movable groove (233).

4. A boiler circulation pump impeller structure according to claim 3, characterized in that: The cross sections of the eight clamping strips (240) and the eight sliding grooves are all T-shaped.

5. A boiler circulation pump impeller structure according to claim 4, characterized in that: The installation module (200) further comprises eight reinforcing grooves (260) which are arranged in an annular shape and at equal distances on the inner wall of the octagonal groove (210); the interiors of the eight octagonal grooves (210) are all slidably connected with reinforcing strips (270); and the eight reinforcing strips (270) are all fixedly connected to the outer surface of the octagonal groove (210).

6. A boiler circulation pump impeller structure according to claim 5, characterized in that: One end of the eight reinforcement grooves (260) extends to the interior of the sealing groove (120), and the eight reinforcement grooves (260) and the eight clamping assemblies (230) are distributed in a staggered manner.

7. The impeller structure of a boiler circulation pump according to claim 6, characterized in that: The main body module (100) further comprises an annular groove formed on one side of the inner wall of the sealing groove (120); a sealing ring (150) is movably clamped inside the annular groove; the sealing ring (150) is fixedly connected to the sealing sheet (130); a sealing rubber ring (160) is fixedly connected to one side of the inner wall of the annular groove; the sealing rubber ring (160) is in contact with the sealing ring (150).

8. The impeller structure of a boiler circulation pump according to claim 7, characterized in that: The main body module (100) further comprises a plurality of mounting bolts (170) each of which is threadedly connected between the sealing sheet (130) and the inside of the impeller seat (110).

Images