Connecting structure, steel pipe pole and pole tower
By using gaskets with preset angles in the connection structure of steel pipe rods, the steel pipe rod body is connected at preset angles, which solves the problem of insufficient flexibility in preskewness adjustment in the prior art, and achieves flexible adjustment of preskewness and stability of engineering acceptance.
Patent Information
- Application Number
- CN202420186062.5
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-01-25
- Publication Date
- 2025-02-28
- Estimated Expiration
- 2034-01-25
AI Technical Summary
In the prior art, the pre-biased method of the foundation top surface is likely to lead to insufficient or excessive pre-skewness in actual construction, and the construction flexibility is poor, affecting the project acceptance and progress.
A connection structure is adopted, through the preset angle of the gasket, the steel pipe rod body is connected at a preset angle, achieving flexible adjustment of pre-bias. The connecting structure includes a connecting part and a gasket, and the first connecting surface and the second connecting surface of the gasket have a preset angle, and a detachable connection is achieved by fixing the bolts and nuts.
It realizes flexible adjustment of preskewness, avoids the problem of insufficient flexibility in the preskew method on the top of the foundation, ensures the stability of project acceptance and progress, and optimizes the rationality of the stress of the steel pipe rod.
Smart Images
Figure CN222542134U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of power transmission equipment, in particular to a connection structure, a steel pipe pole and a pole tower. Background Art
[0002] New transmission line projects generally use steel tube poles. The function of the corner steel tube pole is to change the direction of the transmission line. Since the line has a certain angle, the direction of the combined force of the tower conductor points to the inside of the corner. If the tower is not reversely pre-biased, the steel tube pole will tilt toward the inside corner of the combined force direction. During construction, the lateral displacement of the top of the corner tower must not exceed 25 thousandths and must not tilt toward the inside corner.
[0003] Therefore, the method commonly used in existing construction is to adopt the pre-bias method of the top surface of the foundation, that is, the top surface of the foundation is artificially increased on the outer corner side, and the top surface of the foundation is made into an inclined surface. In this way, when the steel tube pole is completed after the pole tower is assembled but the line is not strung, the steel tube pole will tilt toward the outer corner side. After the line is strung, the direction of the combined force of the conductor and the inclination direction of the outer corner side offset each other, so that the steel tube pole can be in a vertical state under the operating stress state.
[0004] However, when using the above-mentioned technical solution, the slope value of the inclined surface of the foundation is estimated, while the actual situation often results in insufficient or excessive pre-skewness, so that the actual tower still has a certain inclination value after the line is erected. In addition, due to the different construction levels of the construction units, sometimes there will be problems such as the reverse of the pre-skewed surface, forgetting to do the foundation pre-skew, or the pre-skew value not meeting the design requirements. If adjustment is needed later, the steel pipe pole can only be dismantled as a whole and the pre-skew must be re-performed on the top surface of the foundation, which has poor flexibility and seriously affects the project acceptance and progress. Utility Model Content
[0005] The utility model provides a connection structure, a steel pipe pole and a pole tower, which are used to solve the defect of poor flexibility in pre-bias adjustment in the prior art, realize flexible adjustment of pre-bias degree, and ensure project acceptance and project progress.
[0006] The utility model provides a connection structure suitable for connecting two rods, the connection structure comprising:
[0007] A connecting portion, arranged at one end of the rod body to be connected;
[0008] A gasket, wherein two opposite ends of the gasket are respectively provided with a first connecting surface and a second connecting surface, and the first connecting surface and the second connecting surface are arranged at a preset angle;
[0009] The connecting portion of one of the rod bodies is in contact with the first connecting surface and is detachably connected to the gasket, and the connecting portion of the other rod body is in contact with the second connecting surface and is detachably connected to the gasket, so that the two rod bodies are connected at a preset angle.
[0010] According to a connection structure provided by the utility model, it also includes a first connection piece for connecting the connection parts of the two rod bodies and the gasket.
[0011] According to a connection structure provided by the utility model, connection holes corresponding to the positions are arranged on the connection parts of the two rod bodies, and through holes corresponding to the positions of the connection holes are arranged on the gasket;
[0012] The first connecting member includes a first bolt and a first nut. The first bolt passes through the connecting hole and the through hole in sequence and is then locked by the first nut.
[0013] According to a connection structure provided by the utility model, the first connection member includes a first bolt and a first nut;
[0014] A connecting hole is provided on the connecting portion of one of the rod bodies, one end of the first bolt is fixedly connected to the connecting portion of the other rod body, and the first bolt corresponds to the connecting hole;
[0015] A through hole is provided on the gasket at a position corresponding to the connecting hole, and the first bolt passes through the through hole and the connecting hole in sequence and is then locked by the first nut.
[0016] According to a connection structure provided by the utility model, the hole diameter of the connection hole and the hole diameter of the through hole are both larger than the diameter of the first bolt.
[0017] According to a connection structure provided by the utility model, the first connection surface is perpendicular to the axis of the gasket, and the slope of the second connection surface relative to the first connection surface is 0.3% to 0.5%.
[0018] According to a connection structure provided by the utility model, the connection part includes a flange.
[0019] The utility model also provides a steel pipe rod, comprising a plurality of steel pipe units and the above-mentioned connection structure for connecting at least part of the steel pipe units; the adjacent steel pipe units are formed into two rod bodies to be connected.
[0020] According to a steel pipe rod provided by the utility model, the diameter of the steel pipe rod gradually decreases from the bottom end to the top end.
[0021] The utility model also provides a pole tower, comprising the above-mentioned steel pipe pole.
[0022] A pole tower provided by the utility model further includes a foundation, a mounting portion is provided at the bottom end of the steel pipe pole, and the mounting portion is connected to the foundation via a second connecting piece.
[0023] According to a pole tower provided by the utility model, the second connecting member includes a second bolt and a second nut; one end of the second bolt is fixedly connected to the foundation, and the other end passes through the mounting portion and is locked by the second nut.
[0024] According to a pole tower provided by the utility model, the second bolt comprises an anchor bolt.
[0025] According to a pole tower provided by the utility model, a gasket is arranged between the mounting portion and the foundation, a first connection surface of the gasket is fitted and connected to an upper end surface of the foundation, and a second connection surface of the gasket is fitted and connected to the mounting portion.
[0026] The utility model provides a connection structure, a steel pipe pole and a pole tower. The steel pipe pole is formed by connecting a plurality of pole bodies such as steel pipes. Two adjacent pole bodies can be connected by the connection structure. Since the first connection surface and the second connection surface of the gasket are arranged at a preset angle, after the connection parts of the two pole bodies are connected to the first connection surface and the second connection surface respectively, a preset angle will be formed between the two pole bodies, thereby achieving the purpose of pre-biasing. The pre-biasing degree of the pole tower can be measured during the construction process. If the pre-biasing degrees are different, the connection structure can be increased when assembling the steel pipe pole. The number of gaskets increases accordingly. The increase of gaskets can make the slope superimposed, and the self-inclination slope of the steel pipe rod increases, so that the pre-deflection of the steel pipe rod meets the requirements; if the pre-deflection is too large, for example, the foundation pre-deflection is too large or the construction is wrong, the gasket can be installed in reverse to change the inclination direction of the steel pipe rod, so that the steel pipe rod reaches the preset pre-deflection; compared with related technologies, the pre-deflection can be flexibly and conveniently adjusted according to the actual construction scene during construction, so as to ensure the project acceptance and progress; in addition, compared with the foundation pre-deflection, the pre-deflection position can be adjusted to make the force on the steel pipe rod more reasonable. BRIEF DESCRIPTION OF THE DRAWINGS
[0027] In order to more clearly illustrate the technical solutions in the present invention or the prior art, a brief introduction will be given below to the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.
[0028] Figure 1 It is a structural schematic diagram of a connection structure provided by an embodiment of the utility model;
[0029] Figure 2It is a structural schematic diagram of a pole tower provided by an embodiment of the utility model.
[0030] Reference numerals:
[0031] 10. Rod body; 100. First rod; 101. Second rod; 11. Connecting part; 110. First connecting part; 111. Second connecting part; 112. Connecting hole; 12. Gasket; 120. First connecting surface; 121. Second connecting surface; 122. Through hole; 20. First connecting member; 30. Steel pipe unit; 40. Foundation. DETAILED DESCRIPTION
[0032] In order to make the purpose, technical solution and advantages of the utility model clearer, the technical solution of the utility model will be described clearly and completely in conjunction with the drawings in the utility model. Obviously, the described embodiments are part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.
[0033] In order to facilitate the understanding of the connection structure, steel tube pole and pole tower provided by the utility model, the application background is first explained. As a common pole tower form in transmission lines, steel tube poles are widely used in new transmission line projects. The function of the angle-type steel tube pole is to change the direction of the transmission line. Since the transmission line has a certain angle, the direction of the resultant force of the pole tower conductor points to the angle-giving side. If the pole tower is not reversely pre-biased, the steel tube pole will be tilted toward the inner angle side of the resultant force direction.
[0034] In the related technology, a commonly used method is to pre-bias the top surface of the foundation, that is, the top surface of the foundation is artificially raised on the outer corner side, and at the same time the top surface of the foundation is made into an inclined surface with a slope between 0.3% and 0.5% and a thickness between 5mm and 10mm. After the steel pipe pole is assembled, it will tilt toward the outer corner side. After the wiring is completed, the direction of the combined force of the conductor and the inclination direction of the outer corner side offset each other, so that the steel pipe pole is in a vertical state.
[0035] However, the slope value of the inclined surface on the top of the foundation is an estimated value, and the actual situation often results in insufficient or excessive pre-skewness, so that the actual tower still has a certain inclination value after the line is completed; in addition, due to the different construction levels of the construction units, sometimes the foundation pre-skew slope is made in the opposite direction, the foundation pre-skew is forgotten, or the foundation pre-skew value does not meet the design requirements. If adjustment is needed in the later stage, the steel pipe pole can only be dismantled as a whole and the pre-skew must be re-performed on the top of the foundation. The flexibility is poor, which seriously affects the project acceptance and progress.
[0036] In addition, the steel pipe pole is generally assembled from 3-5 sections of steel pipes. When the steel pipe pole is assembled and subjected to stress, the upper steel pipe is more likely to tilt than the lower part, and the pre-biased position of the foundation is at the bottom of the steel pipe pole, which makes the stress on the steel pipe pole unreasonable.
[0037] Based on the above, the utility model provides a connection structure, a steel pipe pole and a pole tower, which can flexibly adjust the pre-deflection to ensure project acceptance and project progress.
[0038] Combine the following Figure 1-Figure 2 The utility model describes a connection structure, a steel pipe pole and a pole tower.
[0039] Reference Figure 1 and Figure 2 A connection structure is suitable for connecting two rod bodies 10, and the connection structure includes a connection part 11 and a gasket 12; wherein the connection part 11 is arranged at one end of the rod body 10 to be connected; the gasket 12 is respectively provided with a first connection surface 120 and a second connection surface 121 at two opposite ends, and a preset angle is formed between the first connection surface 120 and the second connection surface 121; among the two rod bodies 10, the connection part 11 of one rod body 10 is in contact with the first connection surface 120 and is detachably connected to the gasket 12, and the connection part 11 of the other rod body 10 is in contact with the second connection surface 121 and is detachably connected to the gasket 12, so that the two rod bodies 10 are connected at a preset angle.
[0040] In practical applications, the steel tube pole is composed of a plurality of rod bodies 10, such as steel tubes, connected as a whole. Two adjacent rod bodies 10 can be connected by the above-mentioned connection structure. Since the first connection surface 120 and the second connection surface 121 of the gasket 12 are arranged at a preset angle, after the connection parts 11 of the two rod bodies 10 are respectively connected to the first connection surface 120 and the second connection surface 121, a preset angle will be formed between the two rod bodies 10, thereby achieving the purpose of pre-bias. The pre-bias of the pole tower can be measured during the construction process. If the pre-bias is different, the number of connection structures can be increased when assembling the steel tube pole, and the number of gaskets 12 will increase accordingly. The increase of gaskets 12 can make the slope superimposed, and the self-inclination slope of the steel tube pole increases, so that the pre-bias of the steel tube pole meets the requirements; if the pre-bias is too large, for example, the foundation pre-bias is too large or the construction is wrong, the gasket 12 can be installed in reverse to change the inclination direction of the steel tube pole so that the steel tube pole reaches the preset pre-bias. Compared with related technologies, the pre-bias degree can be flexibly and conveniently adjusted according to the actual construction scenario during construction, thereby ensuring project acceptance and project progress; in addition, compared with foundation pre-bias, the pre-bias position can be adjusted to make the force on the steel pipe rod more reasonable.
[0041] For ease of understanding and explanation, two rod bodies 10 are set, one of which is a first rod 100, and correspondingly, the connecting portion 11 provided on the first rod 100 is the first connecting portion 110, and the other rod body 10 is a second rod 101, and the connecting portion 11 provided on the second rod 101 is the second connecting portion 111; the first connecting portion 110 is in contact with the first connecting surface 120 of the gasket 12, and the second connecting surface 121 is in contact with the second connecting surface 121 of the gasket 12, and the first connecting portion 110, the second connecting portion 111 and the gasket 12 are locked by the first connecting member 20, so as to realize the connection and fixation of the first rod 100 and the second rod 101, and the specific structure of the first connecting member 20 can be selected according to actual needs.
[0042] In one embodiment, referring to Figure 1 The first connection part 110 and the second connection part 111 are both provided with connection holes 112 , and the positions of the connection holes 112 on the first connection part 110 and the second connection part 111 correspond to each other; a through hole 122 is provided on the gasket 12 at a position corresponding to the connection hole 112 .
[0043] The first connecting member 20 includes a first bolt and a first nut. The first bolt passes through the connecting hole 112 on the first connecting part 110, the through hole 122 on the gasket 12 and the connecting hole 112 on the second connecting part 111 in sequence, and is then locked with the first nut to achieve the connection and fixation between the first rod 100 and the second rod 101.
[0044] In another feasible embodiment, the first connecting member 20 includes a first bolt and a first nut; the end of the first bolt is fixedly connected to one of the first connecting part 110 and the second connecting part 111, for example, it can be fixed by welding, integral molding or other methods, and the other is provided with a connecting hole 112, and the position and number of the first bolts correspond to the position and number of the connecting holes 112; a through hole 122 is provided at the position corresponding to the connecting hole 112 on the gasket 12. When connecting, the first bolt passes through the through hole 122 and the connecting hole 112 in sequence, and is locked with the first nut, which can also achieve the connection and fixation between the first rod 100 and the second rod 101.
[0045] Of course, the first connecting member 20 is not limited to the above-mentioned structures, and other forms of the first connecting member 20 are applicable as long as they can achieve the connection and fixation of the first connecting portion 110, the gasket 12, and the second connecting portion 111.
[0046] When the above-mentioned connection method is adopted, since there is an angle between the first connecting surface 120 and the second connecting surface 121 of the gasket 12, an angle will exist between the first connecting part 110 and the second connecting part 111 when connected. Therefore, the hole diameter of the connecting hole 112 on the connecting part 11 and the hole diameter of the through hole 122 on the gasket 12 need to be larger than the diameter of the first bolt to avoid interference between the inner wall of the hole and the first bolt during connection.
[0047] The difference between the hole diameter and the diameter of the first bolt can be designed according to actual needs, such as the arrangement of the first connecting surface 120 and the second connecting surface 121 and the size of the preset angle. In this embodiment, the slope of the second connecting surface 121 relative to the first connecting surface 120 is 0.3% to 0.5%, and the hole diameter of the connecting hole 112 and the hole diameter of the through hole 122 are 3-4 mm larger than the diameter of the first bolt.
[0048] Specifically, the gasket 12 is annular as a whole, the first connection surface 120 is set as the bottom surface of the gasket 12, which is perpendicular to the axis of the gasket 12, and the second connection surface 121 is set as the top surface of the gasket 12; the through holes 122 are arranged in a circle around the axis of the gasket 12. Correspondingly, the connecting portion 11 can adopt a flange, the flange is coaxially arranged with the rod body 10, and the connecting holes 112 are arranged in a circle around the center of the flange.
[0049] Of course, the gasket 12 and the connecting portion 11 are not limited to the shapes or structures listed above, and gaskets 12 of other shapes or structures may also be applicable as long as they can achieve the connection between the first rod 100 and the second rod 101 and the preset deviation between the first rod 100 and the second rod 101.
[0050] Specifically, the rod body 10 and the connecting portion 11 are integrally formed.
[0051] Specifically, the rod body 10 may be a hollow steel pipe, and the cross section of the rod body 10 may be circular, or may be a regular or irregular polygon.
[0052] It is understandable that the specific materials of the rod body 10, the connecting portion 11 and the gasket 12 can be selected according to actual needs. For example, steel with strength grades of Q235, Q355, Q390, Q420 or Q460 can be used.
[0053] The steel tube rod provided by the utility model is described below. The steel tube rod described below and the connection structure described above can be referred to each other.
[0054] Reference Figure 2 A steel pipe rod comprises a plurality of steel pipe units 30 and the above-mentioned connection structure for connecting at least part of the steel pipe units 30, and adjacent steel pipe units 30 are formed into two rod bodies 10 to be connected.
[0055] Specifically, the number and specifications of the steel pipe units 30 can be selected according to actual needs. In this embodiment, the steel pipe rod is connected by 3-5 sections of steel pipe units 30, and the cross-section of the steel pipe unit 30 can be circular, hexagonal, octagonal, etc.
[0056] Specifically, the diameter of the steel pipe rod gradually decreases from the bottom end to the top end.
[0057] It can be understood that the number of steel pipe units 30 connected by the connection structure can be selected according to the actual required pre-skewness.
[0058] The pole tower provided by the utility model is described below. The pole tower described below and the connection structure and steel pipe pole described above can be referred to each other.
[0059] Reference Figure 2 A pole tower comprises a foundation 40 and the above-mentioned steel pipe pole connected to the foundation 40.
[0060] Specifically, a mounting portion is provided at the bottom of the steel pipe rod, and the mounting portion is connected to the foundation 40 via a second connecting piece.
[0061] Specifically, the second connecting member includes a second bolt and a second nut; wherein one end of the second bolt is fixedly connected to the foundation 40 , and the other end passes through the mounting portion and is locked by the second nut, thereby connecting the steel pipe rod to the foundation 40 .
[0062] Specifically, the mounting portion may be a flange.
[0063] Specifically, the second bolt may be an anchor bolt, and the bottom of the second bolt is pre-buried in the foundation 40 , so as to achieve connection and fixation between the second bolt and the foundation 40 .
[0064] Specifically, the above-mentioned gasket 12 can be arranged between the mounting part and the foundation 40, the upper end surface of the foundation 40 is set as a plane, the first connecting surface 120 of the gasket 12 is fitted with the upper end surface of the foundation 40, and the mounting part is fitted with the second connecting surface 121 of the gasket 12 to form a foundation pre-bias, and the foundation 40, the gasket 12 and the mounting part are connected by a second connecting piece to realize the connection and fixation of the steel pipe rod on the foundation 40.
[0065] It is understandable that the above is only a partial structure of the pole tower and not all of it. In order to realize the installation of transmission lines, the pole tower may also have other structures, such as cross arms, insulators, etc., but the present utility model does not make improvements to other structures of the pole tower, so other structures of the pole tower will not be described in detail.
[0066] The novelty of the utility model is that the steel tube pole is formed by connecting a plurality of rod bodies 10 such as steel tubes as a whole. Two adjacent rod bodies 10 can be connected by the above-mentioned connection structure. Since the first connection surface 120 and the second connection surface 121 of the gasket 12 are arranged at a preset angle, after the connecting parts 11 of the two rod bodies 10 are respectively connected to the first connection surface 120 and the second connection surface 121, a preset angle will be formed between the two rod bodies 10, thereby achieving the purpose of pre-bias. The pre-bias of the pole tower can be measured during the construction process. If the pre-bias is different, the number of connection structures can be increased when assembling the steel tube pole, and the number of gaskets 12 will increase accordingly. The increase of gaskets 12 can make the slope superimposed, and the self-inclination slope of the steel tube pole increases, so that the pre-bias of the steel tube pole meets the requirements; if the pre-bias is too large, for example, the foundation pre-bias is too large or the construction is wrong, the gasket 12 can be installed in reverse to change the inclination direction of the steel tube pole so that the steel tube pole reaches the preset pre-bias. Compared with related technologies, the pre-bias degree can be flexibly and conveniently adjusted according to the actual construction scenario during construction, thereby ensuring project acceptance and project progress; in addition, compared with foundation pre-bias, the pre-bias position can be adjusted to make the force on the steel pipe rod more reasonable.
[0067] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the utility model, rather than to limit it. Although the utility model has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or make equivalent replacements for some of the technical features therein. However, these modifications or replacements do not deviate the essence of the corresponding technical solutions from the spirit and scope of the technical solutions of the various embodiments of the utility model.
Claims
1. A connection structure, characterized in that: Applicable to a steel tube rod, the steel tube rod comprising a plurality of rod bodies (10), at least some of the rod bodies (10) of the steel tube rod being connected via the connection structure, the connection structure comprising: A connecting portion (11) is arranged at one end of the rod body (10) to be connected; A gasket (12), wherein two opposite ends of the gasket (12) are respectively provided with a first connecting surface (120) and a second connecting surface (121), and the first connecting surface (120) and the second connecting surface (121) are arranged at a preset angle; The connecting portion (11) of one of the rod bodies (10) is in contact with the first connecting surface (120) and is detachably connected to the gasket (12), and the connecting portion (11) of the other rod body (10) is in contact with the second connecting surface (121) and is detachably connected to the gasket (12), so that the two rod bodies (10) are connected at a preset angle.
2. The connection structure according to claim 1, characterized in that: It also includes a connecting portion (11) for connecting the two rod bodies (10) and a first connecting member (20) for connecting the gasket (12).
3. The connection structure according to claim 2, characterized in that: The connecting parts (11) of the two rod bodies (10) are provided with connecting holes (112) at corresponding positions, and the gasket (12) is provided with a through hole (122) at a position corresponding to the connecting hole (112); The first connecting member (20) comprises a first bolt and a first nut, and the first bolt passes through the connecting hole (112) and the through hole (122) in sequence and is then locked by the first nut.
4. The connection structure according to claim 3, characterized in that: The diameter of the connection hole (112) and the diameter of the through hole (122) are both larger than the diameter of the first bolt.
5. The connection structure according to claim 1, characterized in that: The first connecting surface (120) is perpendicular to the axis of the gasket (12), and the slope of the second connecting surface (121) relative to the first connecting surface (120) is 0.3% to 0.5%.
6. The connection structure according to claim 1, characterized in that: The connecting portion (11) comprises a flange.
7. A steel pipe rod, characterized in that: It comprises a plurality of steel pipe units (30), and a connection structure as claimed in any one of claims 1 to 6 for connecting at least part of the steel pipe units (30); the adjacent steel pipe units (30) are formed into two rod bodies (10) to be connected.
8. A pole tower, characterized in that: Comprising the steel pipe rod as described in claim 7.
9. The pole tower according to claim 8, characterized in that: It also comprises a foundation (40), the bottom end of the steel pipe rod is provided with a mounting portion, and the mounting portion is connected to the foundation (40) via a second connecting member.
10. The pole tower according to claim 9, characterized in that: A gasket (12) is provided between the mounting portion and the base (40); a first connection surface (120) of the gasket (12) is attached to and connected to the upper end surface of the base (40); and a second connection surface (121) of the gasket (12) is attached to and connected to the mounting portion.