Rotatable shaft for connecting rain and sewage drainage pipelines of residential area

Abstract

The utility model discloses a rotatable shaft used for connecting rain and sewage drainage pipelines in a community, which comprises a first shaft, a second shaft, a third shaft and a fourth shaft, the side wall of the first shaft is provided with a first interface and a first rotating port; the second shaft is arranged on the first shaft in a matched and sleeved mode and can rotate relative to the first shaft, and a second connector and a second rotating opening are formed in the side wall of the second shaft; the first connector is located within the opening range of the second rotating opening and used for being connected with a first drainage pipeline on one side. The second connector is located within the opening range of the first rotating opening and used for being connected with a second drainage pipeline on the other side. According to the rotatable shaft used for connection of the rainwater and sewage drainage pipeline in the community, small-angle adjustment of the drainage pipeline can be achieved, and the rotatable shaft is simple in structure and convenient and fast to operate.

Description

Technical Field

[0001] The utility model relates to the technical field of drainage engineering, and further to a rotatable shaft used for connecting rainwater and sewage drainage pipes in a residential area. Background Art

[0002] With the construction of urbanization in the past decade, various cities have carried out a large number of community construction to meet the needs of urban residents, which has also led to the emergence of many old communities in many cities. Due to the long construction period of such communities, the functional facilities lack corresponding maintenance, and the previous design standards and specifications are insufficient, resulting in serious degradation of various functions of the community, which has a huge impact on the comfort of residents. Among them, the drainage pipes in the community have the most serious impact on the lives and comfort of residents. The survey results show that due to the lack of corresponding dredging and maintenance, the pipelines in the old communities have different degrees of congestion, damage, and mixed rainwater and sewage. In order to achieve the relevant goals of ecological and environmental protection and improve the soft power of cities, Shanghai, Beijing, Tianjin, Suzhou, Nanjing and other places have introduced policies for the renovation of community rainwater and sewage pipelines in recent years. However, due to the large number of internal pipelines in the community, including gas, electricity, communications, street lighting, etc., and the lack of design drawings of drainage pipelines in some communities, this has a huge impact on the renovation of the community's rainwater and sewage drainage network.

[0003] The survey results show that during the renovation of the community drainage network, due to the complexity of various pipelines, in order to avoid various pipelines, it is often necessary to build new pipelines with a small angle deflection (-30°~30°) to meet the requirements of normal drainage. However, the current well seat joints are basically fixed, and the wellbore often requires special drilling tools to drill holes at designated locations. In addition, due to the different diameters of various pipelines and the different operating levels of construction workers, there is often a lack of suitable drilling technology on site, which affects the construction progress and causes construction quality deviations.

[0004] Therefore, it is necessary to design a rotatable wellbore for connecting the rainwater and sewage pipes in the community to solve the above problems. Summary of the invention

[0005] In view of the above technical problems, the purpose of the utility model is to provide a rotatable shaft for connecting rainwater and sewage drainage pipes in a residential area, which can realize small-angle adjustment of the drainage pipe, has a simple structure, and is easy to operate.

[0006] In order to achieve the above-mentioned purpose, the utility model provides a rotatable wellbore for connecting rainwater and sewage drainage pipes in a residential area, comprising:

[0007] A first shaft, wherein a first interface and a first rotating port are provided on a side wall of the first shaft;

[0008] A second wellbore, adapted to be mounted on the first wellbore and capable of rotating relative to the first wellbore, a second interface and a second rotating port being arranged on a side wall of the second wellbore;

[0009] The first interface is located within the opening range of the second rotating port, and the first interface is used to connect to a first drainage pipe on one side;

[0010] The second interface is located within the opening range of the first rotating port, and the second interface is used to connect to a second drainage pipe on the other side.

[0011] In some embodiments, the first interface is a circular hole, the first rotating port is a curved waist hole, and the length direction of the first rotating port is arranged along the circumference of the second wellbore;

[0012] The second interface is a circular hole, the second rotating port is a curved waist hole, and the length direction of the second rotating port is arranged along the circumference of the second wellbore.

[0013] In some embodiments, the first rotating port includes a first straight section and two first arc sections, the two first arc sections are respectively located on both sides of the first straight section, and the arc diameter of the first arc section, the width of the first straight section, and the diameter of the first interface are respectively the same;

[0014] The second rotating port includes a second straight section and two second arc sections, the two second arc sections are respectively located on both sides of the second straight section, and the arc diameter of the second arc section, the width of the second straight section, and the diameter of the second interface are respectively the same.

[0015] In some embodiments, the first interface is disposed on one side of the first wellbore, the first rotating port is disposed on the opposite side of the first wellbore, and the first wellbore is a bilaterally symmetrical structure;

[0016] The second interface is arranged on one side of the second shaft, and the second rotating port is arranged on the opposite side of the second shaft. The second shaft is a left-right symmetrical structure.

[0017] In some embodiments, when the second wellbore rotates relative to the first wellbore, the deflection angle of the first drainage pipe and the second drainage pipe is -33° to 33°.

[0018] In some embodiments, the first wellbore is a cylindrical structure with a smooth outer wall, the second wellbore is a cylindrical structure with a smooth inner wall, and the outer diameter of the first wellbore is equal to the inner diameter of the second wellbore, so that the second wellbore can be fitted on the first wellbore and maintain close contact with each other.

[0019] In some embodiments, the first wellbore is made of polypropylene, rigid polyvinyl chloride, or polyethylene;

[0020] The second shaft is made of polypropylene, rigid polyvinyl chloride or polyethylene.

[0021] In some embodiments, a first limiting portion is disposed at the end of the first wellbore, and a second limiting portion is disposed at the end of the second wellbore. The first limiting portion is adaptively connected to the second limiting portion to limit the rotation angle of the second wellbore relative to the first wellbore.

[0022] In some embodiments, first limit portions are provided at both ends of the first shaft, and the first shaft is a vertically symmetrical structure;

[0023] Second limiting parts are provided at both ends of the second shaft, and the second shaft is a vertically symmetrical structure.

[0024] In some embodiments, the first limiting portion includes two first arc-shaped bosses, the two first arc-shaped bosses are fixedly connected to the ends of the first wellbore, and are arranged at intervals along the circumference of the first wellbore, so that two first arc-shaped grooves are formed between the two first arc-shaped bosses, and the inner diameter of the first arc-shaped boss is smaller than the inner diameter of the first wellbore;

[0025] The second limiting portion includes two second arc-shaped bosses, which are fixedly connected to the ends of the second shaft and are arranged at intervals along the circumference of the second shaft, so that two second arc-shaped grooves are formed between the two second arc-shaped bosses, and the inner diameter of the second arc-shaped boss is smaller than the inner diameter of the second shaft;

[0026] The two first arc-shaped bosses are respectively located in the corresponding second arc-shaped grooves and can reciprocate in the second arc-shaped grooves;

[0027] The two second arc-shaped bosses are respectively located in the corresponding first arc-shaped grooves and can reciprocate in the first arc-shaped grooves.

[0028] Compared with the prior art, the rotatable wellbore for connecting the rainwater and sewage drainage pipes in the community provided by the utility model has the following beneficial effects:

[0029] In the utility model, the rotatable wellbore consists of a first wellbore and a second wellbore, the second wellbore is sleeved on the outside of the first wellbore, and interfaces and rotation ports are respectively arranged on the first wellbore and the second wellbore, and the deflection angles of the two interfaces are adjusted by rotating the first wellbore and the second wellbore, thereby realizing small-angle adjustment of the drainage pipe; by making the outer diameter of the first wellbore and the inner diameter of the second wellbore the same, it is ensured that the wellbores can be closely attached to each other, which can effectively improve the sealing performance; by arranging limiting structures at both ends of the first wellbore and the second wellbore, the axial displacement of the first wellbore and the second wellbore is limited, and the left and right opening angles of the first wellbore and the second wellbore are limited, and the structure is simple and the operation is convenient. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] The preferred implementation modes will be described below in a clear and understandable manner with reference to the accompanying drawings to further illustrate the above-mentioned characteristics, technical features, advantages and implementation methods of the present utility model.

[0031] Figure 1 It is a schematic diagram of the structure of the preferred embodiment of the utility model in which the wellbore can be rotated without deflection;

[0032] Figure 2 It is a schematic diagram of the structure of the preferred embodiment of the utility model in which the wellbore can be rotated to one side;

[0033] Figure 3 It is a schematic structural diagram of a preferred embodiment of the utility model in which the wellbore can be rotated to deflect to the other side;

[0034] Figure 4 It is a structural schematic diagram of the first wellbore of the preferred embodiment of the utility model;

[0035] Figure 5 It is a structural schematic diagram of the first wellbore from another perspective of the preferred embodiment of the utility model;

[0036] Figure 6 It is a structural schematic diagram of the second wellbore of the preferred embodiment of the utility model;

[0037] Figure 7 It is a structural schematic diagram of the second wellbore from another perspective of the preferred embodiment of the utility model.

[0038] Description of Figure Numbers:

[0039] The first shaft 1, the first interface 11, the first rotating opening 12, the first straight section 121, the first arc section 122, the first limiting portion 13, the first arc boss 131, the first arc groove 132, the second shaft 2, the second interface 21, the second rotating opening 22, the second straight section 221, the second arc section 222, the second limiting portion 23, the second arc boss 231, the second arc groove 232. DETAILED DESCRIPTION

[0040] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the specific implementation methods of the utility model will be described below with reference to the accompanying drawings. Obviously, the accompanying drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings and other implementation methods can be obtained based on these drawings without creative work.

[0041] In order to simplify the drawings, only the parts related to the utility model are schematically shown in each figure, and they do not represent the actual structure of the product. In addition, in order to simplify the drawings and facilitate understanding, in some figures, only one of the parts with the same structure or function is schematically drawn or marked. In this article, "one" not only means "only one", but also means "more than one".

[0042] It should be further understood that the term “and / or” used in the specification and appended claims refers to any combination and all possible combinations of one or more of the associated listed items, and includes these combinations.

[0043] In this article, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it 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 utility model can be understood according to specific circumstances.

[0044] In addition, in the description of the present application, the terms "first", "second", etc. are only used to distinguish the description and cannot be understood as indicating or implying relative importance.

[0045] In one embodiment, the reference specification Figures 1 to 7 The utility model provides a rotatable shaft for connecting rainwater and sewage drainage pipes in a residential area, comprising: a first shaft 1 and a second shaft 2, wherein a first interface 11 and a first rotating port 12 are arranged on the side wall of the first shaft 1; the second shaft 2 is adaptively arranged on the first shaft 1 and can rotate relative to the first shaft 1, and a second interface 21 and a second rotating port 22 are arranged on the side wall of the second shaft 2; the first interface 11 is located within the opening range of the second rotating port 22, and the first interface 11 is used to connect the first drainage pipe on one side; the second interface 21 is located within the opening range of the first rotating port 12, and the second interface 21 is used to connect the second drainage pipe on the other side.

[0046] To facilitate construction, during installation, the upstream drainage pipe is first connected to the interface of the first shaft 1, and then the second shaft 2 is rotated and adjusted to a suitable angle to connect with the downstream drainage pipe, thereby realizing a small-angle deflection pipe connection; generally, the construction of the upper manhole cover is started after the upstream and downstream pipes are connected.

[0047] In the present embodiment, the rotatable shaft for connecting the rainwater and sewage drainage pipes of a residential area is composed of a first shaft 1 and a second shaft 2. The second shaft 2 is sleeved on the outside of the first shaft 1. The first shaft 1 is provided with a first interface 11 for connecting to the drainage pipe on one side, and the second shaft 2 is provided with a second interface 21 for connecting to the drainage pipe on the other side. Both interfaces are located within the corresponding rotation port range. The deflection angles of the two interfaces are adjusted by rotating the relative positions of the first shaft 1 and the second shaft 2, thereby realizing small-angle adjustment of the drainage pipes on both sides. The structure is simple and the operation is convenient.

[0048] In one embodiment, the reference specification Figures 1 to 7 The first interface 11 is a circular hole, the first rotating port 12 is a curved waist hole, and the length direction of the first rotating port 12 is arranged along the circumference of the second shaft 2. The second interface 21 is a circular hole, the second rotating port 22 is a curved waist hole, and the length direction of the second rotating port 12 is arranged along the circumference of the second shaft 2.

[0049] Specifically, the first rotating port 12 includes a first straight section 121 and two first arc sections 122, the two first arc sections 122 are respectively located on both sides of the first straight section 121, and the arc diameter of the first arc section 122, the width of the first straight section 121, and the diameter of the first interface 11 are respectively the same. That is, the first straight section 121 includes two arc lines, the two arc lines are arranged along the circumference of the first wellbore 1, the two arc lines are arranged in parallel, and the two ends of the two arc lines are respectively connected to the first arc sections 122 on both sides, so as to enclose and form the first rotating port 12, and the distance between the two arc lines is the same as the diameter of the first interface 11.

[0050] The second rotating port 22 includes a second straight section 221 and two second arc sections 222. The two second arc sections 222 are respectively located on both sides of the second straight section 221. The arc diameter of the second arc section 222, the width of the second straight section 221, and the diameter of the second interface 21 are the same. That is, the second straight section 221 includes two arc lines, the two arc lines are arranged along the circumference of the second wellbore 2, the two arc lines are arranged in parallel, and the two ends of the two arc lines are respectively connected to the second arc sections 222 on both sides, so as to enclose and form the second rotating port 22. The spacing between the two arc lines is the same as the diameter of the second interface 11. By setting the outer diameter of the first wellbore 1 and the inner diameter of the second wellbore 2 to be the same, it is ensured that the inner and outer wellbores can be closely attached to each other, thereby improving the sealing performance.

[0051] Further, the first interface 11 is arranged on one side of the first shaft 1, the first rotating port 12 is arranged on the opposite side of the first shaft 1, and the first shaft 1 is a left-right symmetrical structure; the second interface 21 is arranged on one side of the second shaft 2, the second rotating port 22 is arranged on the opposite side of the second shaft 2, and the second shaft 2 is a left-right symmetrical structure. By setting the first shaft 1 and the second shaft 2 as a left-right symmetrical structure, it is not easy to make mistakes during on-site construction, which is conducive to on-site construction quality assurance. The length of the first rotating port 12 and the second rotating port 22 must be able to meet certain deflection angle requirements, so as to achieve the requirements of connecting pipes at different angles; the length of the first rotating port 12 and the second rotating port 22 cannot be too long, and the distance between the edge of the rotating port and the edge of the interface must be ensured, so as to ensure the sealing requirements of the rotatable shaft. For example: when the second shaft 2 rotates relative to the first shaft 1, the deflection angle between the first drainage pipe and the second drainage pipe is -33° to 33°.

[0052] Furthermore, the first shaft 1 is a cylindrical structure with a smooth outer wall, and the second shaft 2 is a cylindrical structure with a smooth inner wall. The outer diameter of the first shaft 1 is equal to the inner diameter of the second shaft 2, so that the second shaft 2 can be fitted on the first shaft 1 and remain close to each other. Of course, the outer diameter of the first shaft 1 can also be set to be slightly smaller than the inner diameter of the second shaft 2. The first shaft 1 is made of polypropylene, rigid polyvinyl chloride or polyethylene; the second shaft 2 is made of polypropylene, rigid polyvinyl chloride or polyethylene. The first shaft 1 and the second shaft 2 are prepared with injection-grade special resin, and the preparation process allows a certain amount of reinforcing materials and recycled materials to be added. The first shaft 1 and the second shaft 2 can be processed in the factory and assembled on site, thereby improving the efficiency of on-site installation.

[0053] In one embodiment, the reference specification Figures 1 to 7 A first limiting portion 13 is provided at the end of the first wellbore 1, and a second limiting portion 23 is provided at the end of the second wellbore 2. The first limiting portion 13 is adaptively connected to the second limiting portion 23 to limit the rotation angle of the second wellbore 2 relative to the first wellbore 1.

[0054] The first shaft 1 is provided with a first stopper 13 at both ends, and the first shaft 1 is a vertically symmetrical structure; the second shaft 2 is provided with a second stopper 23 at both ends, and the second shaft 2 is a vertically symmetrical structure. By setting the first shaft 1 and the second shaft 2 as vertically symmetrical structures, it is not easy to make mistakes during on-site construction, which is conducive to on-site construction quality assurance.

[0055] Specifically, the first limiting portion 13 includes two first arc-shaped bosses 131, which are fixedly connected to the end of the first wellbore 1 and arranged at intervals along the circumference of the first wellbore 1, so that two first arc-shaped grooves 132 are formed between the two first arc-shaped bosses 131, and the inner diameter of the first arc-shaped boss 131 is smaller than the inner diameter of the first wellbore 1. The second limiting portion 23 includes two second arc-shaped bosses 231, which are fixedly connected to the end of the second wellbore 2 and arranged at intervals along the circumference of the second wellbore 2, so that two second arc-shaped grooves 232 are formed between the two second arc-shaped bosses 231, and the inner diameter of the second arc-shaped boss 231 is smaller than the inner diameter of the second wellbore 2. The two first arc-shaped bosses 131 are respectively located in the corresponding second arc-shaped grooves 232 and can reciprocate in the second arc-shaped grooves 232; the two second arc-shaped bosses 231 are respectively located in the corresponding first arc-shaped grooves 132 and can reciprocate in the first arc-shaped grooves 132. By providing a limiting structure at the top and bottom of the first shaft 1 and the second shaft 2, the axial displacement of the shaft is limited and the left and right opening angles of the shaft are limited.

[0056] In this embodiment, the rotatable wellbore used for connecting the rainwater and sewage drainage pipes in the community includes a first wellbore 1 and a second wellbore 2, which are rotatably connected to achieve three types of states, such as Figure 1 As shown, no deflection occurs at this time, and it is used to connect two parallel pipes; Figure 2 , 3 As shown, it is in a deflected state at this time, which is used for connecting pipes with small angle bends. The figure shows the state of maximum deflection to both sides. Considering that the buried depth of rainwater and sewage pipes in residential areas is generally shallow, and the slope of each pipe is shallow (0.5% to 2%), there are rarely large drop situations. In order to ensure the horizontal connection of the inlet and outlet ends of the pipes, that is, the bottom elevation of the inlet and outlet pipes is the same. Of course, the heights of the first interface 11 and the second interface 21 can also be set to be different.

[0057] During use, the interface end of the first shaft 1 is usually connected to the pipe on one side, and then the interface end of the outer second shaft 2 is connected to the pipe on the other side by rotating the second shaft 2. This device can connect two pipes with an angle between about -33° and 33° by rotating the second shaft 2, and the connection position is of good quality without seepage or leakage. This embodiment solves the problem of constantly adjusting the access angle to avoid various types of pipes during the construction of the rainwater and sewage pipes in the community. The device consists of few devices, a simple and reliable structure, and good sealing and strength, which can effectively solve the problem of small-angle deflection of rainwater and sewage pipes.

[0058] In the above embodiments, the description of each embodiment has its own emphasis. For parts that are not described or recorded in detail in a certain embodiment, reference can be made to the relevant descriptions of other embodiments.

[0059] It should be noted that the above embodiments can be freely combined as needed. The above are only preferred implementations of the utility model. It should be pointed out that for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the principle of the utility model, and these improvements and modifications should also be regarded as the protection scope of the utility model.

Claims

1. A rotatable shaft for connecting rainwater and sewage drainage pipes in a residential area, characterized in that: include: A first shaft, wherein a first interface and a first rotating port are provided on a side wall of the first shaft; A second wellbore, adapted to be mounted on the first wellbore and capable of rotating relative to the first wellbore, a second interface and a second rotating port being arranged on a side wall of the second wellbore; The first interface is located within the opening range of the second rotating port, and the first interface is used to connect to a first drainage pipe on one side; The second interface is located within the opening range of the first rotating port, and the second interface is used to connect to a second drainage pipe on the other side.

2. The rotatable shaft for connecting rainwater and sewage drainage pipes in a residential area according to claim 1 is characterized in that: The first interface is a circular hole, the first rotating port is a curved waist hole, and the length direction of the first rotating port is arranged along the circumference of the second wellbore; The second interface is a circular hole, the second rotating port is a curved waist hole, and the length direction of the second rotating port is arranged along the circumference of the second wellbore.

3. The rotatable shaft for connecting rainwater and sewage drainage pipes in a residential area according to claim 2 is characterized in that: The first rotating port comprises a first straight section and two first arc sections, the two first arc sections are respectively located on both sides of the first straight section, and the arc diameter of the first arc section, the width of the first straight section, and the diameter of the first interface are respectively the same in size; The second rotating port includes a second straight section and two second arc sections, the two second arc sections are respectively located on both sides of the second straight section, and the arc diameter of the second arc section, the width of the second straight section, and the diameter of the second interface are respectively the same.

4. The rotatable shaft for connecting rainwater and sewage drainage pipes in a residential area according to claim 3 is characterized in that: The first interface is arranged on one side of the first wellbore, the first rotating port is arranged on the opposite side of the first wellbore, and the first wellbore is a bilaterally symmetrical structure; The second interface is arranged on one side of the second shaft, and the second rotating port is arranged on the opposite side of the second shaft. The second shaft is a left-right symmetrical structure.

5. The rotatable shaft for connecting rainwater and sewage drainage pipes in a residential area according to claim 4 is characterized in that: When the second wellbore rotates relative to the first wellbore, the deflection angle between the first drainage pipe and the second drainage pipe is -33° to 33°.

6. The rotatable shaft for connecting rainwater and sewage drainage pipes in a residential area according to claim 1 is characterized in that: The first wellbore is a cylindrical structure with a smooth outer wall, and the second wellbore is a cylindrical structure with a smooth inner wall. The outer diameter of the first wellbore is equal to the inner diameter of the second wellbore, so that the second wellbore can be fitted on the first wellbore and maintain close contact with each other.

7. The rotatable shaft for connecting rainwater and sewage drainage pipes in a residential area according to claim 6 is characterized in that: The first wellbore is made of polypropylene, rigid polyvinyl chloride or polyethylene; The second shaft is made of polypropylene, rigid polyvinyl chloride or polyethylene.

8. The rotatable shaft for connecting rainwater and sewage drainage pipes in a residential area according to any one of claims 1 to 7, characterized in that: A first limiting portion is disposed at the end of the first wellbore, and a second limiting portion is disposed at the end of the second wellbore. The first limiting portion is adaptively connected to the second limiting portion to limit the rotation angle of the second wellbore relative to the first wellbore.

9. The rotatable shaft for connecting rainwater and sewage drainage pipes in a residential area according to claim 8 is characterized in that: Both ends of the first shaft are provided with first limit parts, and the first shaft is a vertically symmetrical structure; Second limiting parts are provided at both ends of the second shaft, and the second shaft is a vertically symmetrical structure.

10. The rotatable shaft for connecting rainwater and sewage drainage pipes in a residential area according to claim 9 is characterized in that: The first limiting portion includes two first arc-shaped bosses, which are fixedly connected to the ends of the first wellbore and are arranged at intervals along the circumference of the first wellbore, so that two first arc-shaped grooves are formed between the two first arc-shaped bosses, and the inner diameter of the first arc-shaped boss is smaller than the inner diameter of the first wellbore; The second limiting portion includes two second arc-shaped bosses, which are fixedly connected to the ends of the second shaft and are arranged at intervals along the circumference of the second shaft, so that two second arc-shaped grooves are formed between the two second arc-shaped bosses, and the inner diameter of the second arc-shaped boss is smaller than the inner diameter of the second shaft; The two first arc-shaped bosses are respectively located in the corresponding second arc-shaped grooves and can reciprocate in the second arc-shaped grooves; The two second arc-shaped bosses are respectively located in the corresponding first arc-shaped grooves and can reciprocate in the first arc-shaped grooves.

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