Stirring shaft for on-board excrement domestic sewage biodegradation treatment device
By designing uniformly distributed stirring blades on the stirring shaft and using a plug-in installation, the problems of insufficient stirring efficiency and uniformity are solved, achieving a more efficient and safer stirring effect.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-05-14
- Publication Date
- 2026-03-27
AI Technical Summary
The existing mixing shafts in shipboard sewage biodegradation treatment devices have insufficient mixing efficiency and uniformity, and the connections are not secure enough, posing safety hazards.
Design a stirring shaft body equipped with multiple stirring blades, which are evenly distributed along the length and circumference of the shaft. It adopts a plug-in mounting lug and a plug hole connection, and is made of stainless steel with a thickness of less than 5mm. The motor connection section is provided with a flat keyway and a flat key.
It achieves more uniform and thorough mixing, has a simple structure, is easy to install, has a more secure connection, is safer to use, and prevents the blades from falling off.
Smart Images

Figure CN224040582U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model belongs to the biodegradation treatment device technical field, especially is involved in a kind of stirring shaft for on-ship excrement type domestic sewage biodegradation treatment device. BACKGROUND
[0002] In the 1980s, Japan, USA, Germany and other countries began to study the method of using the metabolism of microorganisms to degrade human excreta, commonly known as biological degradation method, especially Japan first developed successfully using microbial degradation technology to manufacture no water flush, no tangible material is discharged on the toilet, and it is highly valued by environmental protection circles, thus triggering a historic improvement of toilet.
[0003] The stirring shaft is a key component that directly affects the stirring efficiency and stirring uniformity of the on-ship excrement type domestic sewage biodegradation treatment device, and the stirring shaft of the prior art has room for further improvement. UTILITY MODEL CONTENT
[0004] To solve the above problems, the utility model aims at a stirring shaft for on-ship excrement type domestic sewage biodegradation treatment device, which is realized by the following technical scheme.
[0005] A stirring shaft for on-ship excrement type domestic sewage biodegradation treatment device has a stirring shaft main body and multiple stirring paddles, the stirring shaft main body is composed of an installation section, a motor connecting section and a bearing connecting section, the installation section is located between the motor connecting section and the bearing connecting section, the motor connecting section is used to connect with the motor shaft, and the bearing connecting section is used to connect with the bearing; the installation section is provided with paddle installation positions in the same number as the number of stirring paddles, and each paddle installation position is composed of a first installation position on the left and a second installation position on the right.
[0006] The stirring paddle is composed of a paddle main body, the paddle main body is in the shape of a V, the two ends of the paddle main body are fixed on the first installation position and the second installation position respectively, the stirring paddles are equally distributed along the length direction of the stirring shaft main body, and when projected from left to right, all the stirring paddles equally divide the circumference, and the included angle of adjacent two stirring paddles is equal.
[0007] The stirring shaft for on-ship excrement type domestic sewage biodegradation treatment device described above is provided with a first mounting ear and a second mounting ear at the two ends of the paddle main body respectively, the first mounting ear is fixed on the first installation position, and the second mounting ear is fixed on the second installation position.
[0008] The stirring shaft for the biological degradation treatment device of the fecal domestic sewage on the ship is characterized in that a first threaded hole is arranged on the first mounting position, a second threaded hole is arranged on the second mounting position, a first through hole is arranged on the first mounting lug, a second through hole is arranged on the second mounting lug, the first through hole is fixed by bolts with the first threaded hole, and the second through hole is fixed by bolts with the second threaded hole.
[0009] The stirring shaft for the biological degradation treatment device of the fecal domestic sewage on the ship is characterized in that a first threaded hole is arranged on the first mounting position, a second threaded hole is arranged on the second mounting position, a first threaded hole is arranged on the left side wall of the first mounting position, a second threaded hole is arranged on the right side wall of the second mounting position, the first mounting lug is arranged on the left end of the paddle body, the second mounting lug is arranged on the right end of the paddle body, a third mounting lug is arranged on the right side of the left end of the paddle body, a fourth mounting lug is arranged on the left side of the right end of the paddle body, a first through hole is arranged on the third mounting lug, a second through hole is arranged on the fourth mounting lug, the first mounting lug is inserted into the first insertion hole, the second mounting lug is inserted into the second insertion hole, the third mounting lug is arranged on the first mounting position, the first through hole is fixed by bolts with the first threaded hole, the fourth mounting lug is arranged on the second mounting position, and the second through hole is fixed by bolts with the second threaded hole.
[0010] The stirring shaft for the biological degradation treatment device of the fecal domestic sewage on the ship is characterized in that the number of the stirring paddles is three or more.
[0011] The stirring shaft for the biological degradation treatment device of the fecal domestic sewage on the ship is characterized in that the material of the stirring paddles is stainless steel.
[0012] The stirring shaft for the biological degradation treatment device of the fecal domestic sewage on the ship is characterized in that the thickness of the stirring paddles is less than 5 mm.
[0013] The stirring shaft for the biological degradation treatment device of the fecal domestic sewage on the ship is characterized in that the material of the stirring shaft body is stainless steel.
[0014] The stirring shaft for the biological degradation treatment device of the fecal domestic sewage on the ship is characterized in that the depth of the first mounting position and the second mounting position is greater than the thickness of the first mounting lug and the second mounting lug.
[0015] The stirring shaft for the biological degradation treatment device of the fecal domestic sewage on the ship is characterized in that a flat key groove and a flat key are arranged on the motor connecting section.
[0016] The stirring shaft for the biological degradation treatment device of the fecal domestic sewage on the ship is characterized in that a flat key groove and a flat key are arranged on the motor connecting section.
[0017] 1. The stirring paddles are uniformly distributed in two dimensions of the length direction and the circumferential direction of the stirring shaft body, so that the stirring is more uniform and complete.
[0018] 2. The structure is simple, and installation is convenient.
[0019] 3. The first mounting ear is inserted into the first socket, and the second mounting ear is inserted into the second socket, so that the stirring paddle and the stirring shaft body are connected more firmly, the stirring paddle will not fall off from the stirring shaft body even when the bolt is loose, and use is safer. BRIEF DESCRIPTION OF DRAWINGS
[0020] Figure 1 Fig. 1 is a perspective view of the embodiment 1 of the utility model.
[0021] Figure 2 Fig. 2 is a perspective view of the stirring shaft body of the embodiment 1 of the utility model.
[0022] Figure 3 Fig. 3 is a front view of the stirring shaft body of the embodiment 1 of the utility model.
[0023] Figure 4 Fig. 4 is a perspective view of the stirring paddle of the embodiment 1 of the utility model.
[0024] Figure 5 Fig. 5 is a perspective view of the stirring shaft body of the embodiment 2 of the utility model.
[0025] Figure 6 Fig. 6 is a sectional view of the stirring shaft body of the embodiment 2 of the utility model.
[0026] Figure 7 Fig. 7 is a perspective view of the stirring paddle of the embodiment 2 of the utility model.
[0027] In the figure: 1. mounting section, 2. motor connecting section, 3. paddle mounting position, 31. first mounting position, 32. first threaded hole, 33. second mounting position, 34. second threaded hole, 35. first socket, 36. second socket, 4. bearing connecting section, 5. stirring paddle, 51. paddle body, 52. first mounting ear, 53. first through hole, 54. second mounting ear, 55. second through hole, 56. third mounting ear, 57. fourth mounting ear. DETAILED DESCRIPTION
[0028] Embodiment 1: as shown in the figure Figures 1 to 4A stirring shaft for a biodegradation treatment device for sewage on board a ship has a stirring shaft body and three stirring blades 5. The stirring shaft body consists of an installation section 1, a motor connection section 2 and a bearing connection section 4. The installation section 1 is located between the motor connection section 2 and the bearing connection section 4. The motor connection section 2 is used to connect with the motor shaft, and the bearing connection section 4 is used to connect with the bearing. The installation section 1 is provided with three blade mounting positions 3. The blade mounting positions 3 are composed of a first mounting position 31 on the left and a second mounting position 33 on the right. The first mounting position 31 is provided with a first threaded hole 32, and the second mounting position 33 is provided with a second threaded hole 34.
[0029] The stirring blade 5 is composed of a blade body 51, a first mounting ear 52 and a second mounting ear 54. The blade body 51 is U-shaped. The first mounting ear 52 and the second mounting ear 54 are located at the two ends of the blade body 51, respectively. The first mounting ear 52 is provided with a first through hole 53, and the second mounting ear 54 is provided with a second through hole 55. The first mounting ear 52 is located on the first mounting position 31. The first through hole 53 and the first threaded hole 32 are fixed by bolts. The second mounting ear 54 is located on the second mounting position 33. The second through hole 55 and the second threaded hole 34 are fixed by bolts. The stirring blades 5 are equidistantly distributed along the length of the stirring shaft body and projected from left to right. All stirring blades 5 are equally divided into circumferences, and the included angle between two adjacent stirring blades 5 is equal.
[0030] Example 2: Figures 5 to 7 and refer to Figure 1 A stirring shaft for a biodegradation treatment device for shipboard sewage includes a stirring shaft body and three stirring blades 5. The stirring shaft body consists of an installation section 1, a motor connection section 2, and a bearing connection section 4. The installation section 1 is located between the motor connection section 2 and the bearing connection section 4. The motor connection section 2 is used to connect to the motor shaft, and the bearing connection section 4 is used to connect to the bearing. The installation section 1 is provided with three blade mounting positions 3. The blade mounting positions 3 are composed of a first mounting position 31 on the left and a second mounting position 33 on the right. The first mounting position 31 is provided with a first threaded hole 32, and the second mounting position 33 is provided with a second threaded hole 34. The left side wall of the first mounting position 31 is provided with a first insertion hole 35, and the right side wall of the second mounting position 33 is provided with a second insertion hole 36.
[0031] The stirring blade 5 is composed of a blade body 51, a first mounting lug 52 and a second mounting lug 54, the blade body 51 is in the shape of a concave, the first mounting lug 52 and the second mounting lug 54 are respectively located at two ends of the blade body 51, the first mounting lug 52 is located at the left side of the left end of the blade body 51, the second mounting lug 54 is located at the right side of the right end of the blade body 51, a third mounting lug 56 is arranged at the right side of the left end of the blade body 51, a fourth mounting lug 57 is arranged at the left side of the right end of the blade body 51, a first through hole 53 is arranged on the third mounting lug 56, a second through hole 55 is arranged on the fourth mounting lug 57, the first mounting lug 52 is inserted into the first insertion hole 35, the second mounting lug 54 is inserted into the second insertion hole 36, the third mounting lug 56 is located on the first mounting position 31 and is fixed by a bolt passing through the first through hole 53 and the first threaded hole 32, the fourth mounting lug 57 is located on the second mounting position 33 and is fixed by a bolt passing through the second through hole 55 and the second threaded hole 34, the stirring blades 5 are equidistantly distributed along the length direction of the stirring shaft body and are projected from left to right, all the stirring blades 5 equally divide the circumference, and the included angle of two adjacent stirring blades 5 is equal.
[0032] The stirring shaft for the ship fecal domestic sewage biological degradation treatment device has the advantages that a flat key groove and a flat key are arranged on the motor connecting section 2.
[0033] The stirring shaft for the ship fecal domestic sewage biological degradation treatment device has the advantages that the material of the stirring blade 5 is stainless steel.
[0034] The stirring shaft for the ship fecal domestic sewage biological degradation treatment device has the advantages that the thickness of the stirring blade 5 is less than 5 mm.
[0035] The stirring shaft for the ship fecal domestic sewage biological degradation treatment device has the advantages that the material of the stirring shaft body is stainless steel.
[0036] The stirring shaft for the ship fecal domestic sewage biological degradation treatment device has the advantages that the depth of the first mounting position 31 and the second mounting position 33 is greater than the thickness of the first mounting lug 52 and the second mounting lug 54.
[0037] The utility model has the advantages of the following beneficial effects:
[0038] 1. The stirring blade 5 is located in the stirring shaft body length direction and the circumferential direction two dimensions are uniformly distributed, make the stirring more uniform and thorough.
[0039] 2. Simple structure, convenient to install.
[0040] 3. The first mounting ear 52 and the first jack 35 are inserted, and the second mounting ear 54 and the second jack 36 are inserted, which not only makes the stirring blade 5 and the stirring shaft body more firm, but also makes the stirring blade 5 not fall off from the stirring shaft body even when the bolt is loose, and is safer to use.
[0041] The above-mentioned embodiments are only preferred technical solutions of the present application, and should not be regarded as a limitation on the present application. The protection scope of the present application should be based on the technical solutions claimed in the claims, including equivalent replacement schemes of the technical features in the technical solutions claimed in the claims. That is, equivalent replacement improvements within this scope are also within the protection scope of the present application.
Claims
1. A stirring shaft for a marine fecal-type domestic sewage biodegradation treatment device, having a stirring shaft main body and a plurality of stirring paddles (5), characterized by: The stirring shaft body is composed of a mounting section (1), a motor connecting section (2) and a bearing connecting section (4), the mounting section (1) is located between the motor connecting section (2) and the bearing connecting section (4), a number of paddle mounting positions (3) equal to the number of stirring paddles (5) are arranged on the mounting section (1), each paddle mounting position (3) is composed of a first mounting position (31) on the left and a second mounting position (33) on the right; The stirring paddle (5) is composed of a paddle body (51), the paddle body (51) is in the shape of a concave, the two ends of the paddle body (51) are fixed on the first mounting position (31) and the second mounting position (33) respectively, the stirring paddles (5) are equidistantly distributed along the length direction of the stirring shaft body, and when projected from left to right, all the stirring paddles (5) divide the circumference equally, and the included angle of adjacent two stirring paddles (5) is equal.
2. The stirring shaft for the biological degradation treatment device of the fecal and similar domestic sewage on board according to claim 1, characterized in that: The two ends of the paddle body (51) are respectively provided with a first mounting lug (52) and a second mounting lug (54), the first mounting lug (52) is fixed on the first mounting position (31), and the second mounting lug (54) is fixed on the second mounting position (33).
3. The stirring shaft for the biological degradation treatment device for the fecal and similar sanitary wastewater on board according to claim 2, characterized in that: A first threaded hole (32) is arranged on the first mounting position (31), a second threaded hole (34) is arranged on the second mounting position (33), a first through hole (53) is arranged on the first mounting lug (52), and a second through hole (55) is arranged on the second mounting lug (54), the first threaded hole (32) and the first through hole (53) are fixed by bolts, and the second threaded hole (34) and the second through hole (55) are fixed by bolts.
4. The stirring shaft for the biological degradation treatment device for the fecal and similar sanitary wastewater on board according to claim 1, characterized in that: A first threaded hole (32) is arranged on the first mounting position (31), a second threaded hole (34) is arranged on the second mounting position (33), a first insertion hole (35) is arranged on the left side wall of the first mounting position (31), a second insertion hole (36) is arranged on the right side wall of the second mounting position (33), a first mounting lug (52) is arranged on the left side of the left end of the paddle body (51), a second mounting lug (54) is arranged on the right side of the right end of the paddle body (51), a third mounting lug (56) is arranged on the right side of the left end of the paddle body (51), and a fourth mounting lug (57) is arranged on the left side of the right end of the paddle body (51), a first through hole (53) is arranged on the third mounting lug (56), a second through hole (55) is arranged on the fourth mounting lug (57), the first mounting lug (52) is inserted into the first insertion hole (35), the second mounting lug (54) is inserted into the second insertion hole (36), the third mounting lug (56) is located on the first mounting position (31), the first threaded hole (32) and the first through hole (53) are fixed by bolts, the fourth mounting lug (57) is located on the second mounting position (33), and the second threaded hole (34) and the second through hole (55) are fixed by bolts.
5. The stirring shaft for the biological degradation treatment device of the fecal and similar domestic sewage on board according to any one of claims 1 to 4, characterized in that: The number of the stirring paddles (5) is not less than three.
6. The stirring shaft for the biological degradation treatment of the fecal sewage on the ship according to claim 5, characterized in that: The material of the stirring paddles (5) is stainless steel.
7. The stirring shaft for use in a biological degradation treatment device for fecal and similar sanitary wastewater on board a ship according to claim 6, characterized in that: The thickness of the stirring paddles (5) is less than 5 mm.
8. The stirring shaft for use in a biological degradation treatment device for fecal and similar domestic sewage on board a ship according to claim 7, characterized in that: The material of the stirring shaft body is stainless steel.
9. The stirring shaft for use in a biological degradation treatment device for fecal and similar domestic sewage on board a ship according to claim 8, characterized in that: The first mounting position (31) and the second mounting position (33) have a depth greater than the thickness of the first mounting lug (52) and the second mounting lug (54).
10. The stirring shaft for use in a biological degradation treatment apparatus for fecal and similar sanitary sewage on board a ship according to claim 9, wherein: The motor connecting section (2) is provided with a flat key groove and a flat key.