Steel pipe riveting structure of multi-node television tower frame

Abstract

The invention discloses a steel pipe riveting structure of a multi-node television tower building frame, and relates to the technical field of television tower building frame riveting structures, the steel pipe riveting structure comprises a building frame body and lap joint bottom plates arranged on the bottom surface of the building frame body at equal angles, and the outer ends of the adjacent lap joint bottom plates are fixedly connected with positioning bottom plates; a first supporting part is arranged above the building frame body, the first supporting part comprises a first supporting stand column, and the bottom end of the first supporting stand column is detachably installed in the middle of the top face of the lap joint bottom plate through a bolt; a second supporting part is arranged above the first supporting part and comprises a second supporting stand column. According to the steel pipe riveting structure of the multi-node television tower building frame, the building frame body is composed of the first supporting part and the second supporting part, the supporting transverse columns, the first riveting truss and the second riveting truss are connected and locked through the lock pin sleeves and the riveting transverse plates with the controllable number, and the problem of insufficient strength caused by metal fatigue is avoided.

Description

Technical Field

[0001] The invention relates to the technical field of riveted structures of television tower frames, in particular to a steel pipe riveted structure of a multi-node television tower frame. Background Art

[0002] Steel pipes have hollow cross-sections and can be divided into pipelines, engineering structures, thermal equipment, etc. according to their uses. In the field of construction, steel pipes are also particularly applicable, especially the current TV tower frame structure, which arranges multi-layer large cantilevered ring steel structure towers to meet the needs of craftsmanship, technology and sightseeing, while making the architectural shape of the TV tower more colorful. Its advantages lie in its durability and good sealing performance, which can play a very important role in construction projects.

[0003] The invention with publication number CN110939305A discloses a node connection device for a steel pipe tower, wherein a connection hole is provided on the stiffening rib, and a high-strength bolt passes through the connection hole to fix the support rod or branch pipe to the stiffening rib. During on-site assembly, the upper main pipe is hoisted, and the stiffening rib and the upper end surface of the lower main pipe are used together as temporary support when assembling the upper main pipe, and are connected to the outer sleeve through LMB type single-sided rivets.

[0004] The invention with the announcement number CN113789984A discloses a node for intersecting steel pipe towers, in which each branch pipe of the node is connected to the rods at the corresponding position of the spanning tower body through the joint flange and the joint bolt. The node structure and stress distribution are reasonable, the node form is flexible, the cutting of the intersecting line and the complicated welding process are avoided, the local residual stress generated by the overlapping welds is eliminated, and the manufacturing and installation are convenient and fast, and it can be promoted and applied in the super-high spanning steel pipe towers of power transmission lines.

[0005] However, the above-disclosed steel pipe node connection structure still has the following problems in actual application: although a multi-point docking structure is set on the outside of the steel pipe, this type of node docking structure is only installed with plug-in bolts. Since the stress points of the truss steel pipes at different angles are different, it is difficult to ensure the strength of the connection. The local residual stress distribution of the node after welding is very uneven, which is not conducive to node fatigue stress. In addition, the manufacturer's processing technology and processing accuracy are very high, and the stability of the connection of each node cannot be guaranteed.

[0006] Therefore, we proposed a steel pipe riveted structure of a multi-node TV tower frame to solve the above-mentioned problems. Summary of the invention

[0007] The purpose of the present invention is to provide a steel pipe riveted structure of a multi-node TV tower frame, in order to solve the problem that a multi-point docking structure is set on the outside of the existing steel pipe, but this type of node docking structure is only installed by plug-in bolts. Since the stress points of the truss steel pipes at different angles are different, it is difficult to ensure the strength of the connection. The local residual stress distribution of the node after welding is very uneven, which is not conducive to node fatigue stress. In addition, the manufacturer's processing technology and processing accuracy are very high, and the stability of the connection of each node cannot be guaranteed.

[0008] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: a steel pipe riveted structure of a multi-node TV tower truss, comprising a truss body, and overlapping bottom plates arranged at equal angles on the bottom surface of the truss body, and the outer ends of adjacent overlapping bottom plates are fixedly connected with positioning bottom plates; and further comprising: The top of the building frame body includes a first support part, and the first support part includes a first support column, and the bottom end of the first support column is detachably mounted on the middle part of the top surface of the overlapped bottom plate by bolts; A second supporting part is arranged above the first supporting part, and the second supporting part includes a second supporting column, and the bottom end of the second supporting column is detachably mounted on the top end of the first supporting column included in the first supporting part by bolts.

[0009] Preferably, the first supporting portion includes a first oblique tie rod, and the outer end of the first oblique tie rod is fixedly connected to the outer side of the top surface of the overlapping bottom plate set at an equal angle, and the inner end of the first oblique tie rod is fixedly connected to the middle part of the first riveted truss.

[0010] Preferably, the second supporting portion includes a second oblique tie rod, and the outer end of the second oblique tie rod is fixedly connected to the outer end of the top surface of the overlapping bottom plate set at an equal angle, and the inner end of the second oblique tie rod is fixedly connected to the middle part of the second riveted truss.

[0011] Preferably, the outer end of the first riveted truss included in the first supporting portion is arranged at the upper end of the adjacent first supporting column, and the bottom surface of the first riveted truss arranged at an equal angle is fixedly connected to the top end of the oblique positioning rod.

[0012] Preferably, the outer end of the second riveted truss included in the second supporting portion is arranged at the upper end of the adjacent second oblique tension rod, and the top surface of the second riveted truss arranged at an equal angle is fixedly connected to the bottom end of the oblique positioning rod.

[0013] Preferably, the first support part and the second support part both include a locking pin sleeve, and the locking pin sleeves are fixedly installed on the top of the first support column and the top of the second support column according to the number required by the structure, and a lockable driving gear ring is rotatably provided on the outside of the locking pin sleeve, and a driving gear is rotatably provided on the outside of the locking pin sleeve through a bearing at an equal angle, and the driving gear ring is meshingly connected with the driving gear.

[0014] Preferably, a threaded sleeve is fixedly provided at the center position of the external driving gear of the locking pin sleeve, and a threaded sliding rod is provided on the internal thread of the threaded sleeve, and sliding is achieved between the threaded sliding rod and the locking pin sleeve through a concave-convex snap-fit ​​structure, and a supporting cross column is plugged and installed on the inner end of the locking pin sleeve, and the supporting cross column is locked and positioned through the inner end of the threaded sliding rod that can slide inside the locking pin sleeve.

[0015] Preferably, the first support part and the second support part both include riveted cross plates, and the riveted cross plates are fixedly installed on the top ends of the first support columns and the second support columns according to the number required by the structure, and a pressure plate is elastically installed on the top of the riveted cross plates, and the pressure plate is driven down when the riveted cross plates are installed with the first riveted truss and the second riveted truss by bolts.

[0016] Preferably, a main guide rack is fixedly provided on the outer side of the riveted cross plate, and the main guide rack is slidably provided inside the first supporting column and the second supporting column, and a guide gear mounted on a bearing is meshed below the main guide rack, and a secondary guide rack is meshed and slidably provided on the other side of the guide gear.

[0017] Preferably, a lifting cross plate is slidably provided inside the first supporting column and the second supporting column, and the outer end of the lifting cross plate is fixedly connected to the bottom end of the auxiliary guide rack so as to lift and limit the bottom surface of the first riveted truss and the second riveted truss to ensure the stability of the structure.

[0018] Compared with the prior art, the beneficial effects of the present invention are as follows: the steel pipe riveted structure of the multi-node TV tower truss is composed of a truss body through a first support part and a second support part, and a controllable number of locking pin sleeves and riveted cross plates are used to connect and lock the supporting cross column with the first riveted truss and the second riveted truss, thereby avoiding the problem of insufficient strength caused by metal fatigue. The specific contents are as follows: 1. The first support part and the second support part are supported by the overlapping bottom plates and the positioning bottom plates distributed at equal angles. The overlapping bottom plates and the positioning bottom plates distributed at equal angles form a circular structure and are connected to the supporting columns of the building frame body to form the structure of the building frame body.

[0019] The first support part is connected by first support columns set at equal angles through a first riveted truss, and is connected to the top surface of the overlapping base plate through a first oblique pull rod in the middle of the first riveted truss, thereby ensuring the stability of the first support column; the second support part includes a second support column that is plugged and locked on the top surface of the first support column, and adjacent second support columns are connected to each other through a second riveted truss, and are similarly connected to the top surface of the overlapping base plate by a second oblique pull rod, so as to realize the construction of the overall structure.

[0020] 2. A supporting cross column is installed between the corresponding locking pin sleeves to ensure the stability of the connection between the first supporting part and the second supporting part. The driving gear is driven by rotating the driving ring to drive the internal threaded sleeve to rotate, so as to drive the threaded sliding rod to slide inward, and then inserted into the outer end of the supporting cross column, thereby locking the supporting cross column.

[0021] 3. The first riveted truss and the second riveted truss are installed on the bottom surfaces of the corresponding riveted cross plates by bolts, and the locking of the bolts drives the pressure plate and the main guide rack to descend, meshing the guide gear and driving the auxiliary guide rack to slide, so that it drives the lifting cross plate to rise and thus lift it on the bottom surfaces of the first riveted truss and the second riveted truss, thereby ensuring the firmness of the installation of the first riveted truss and the second riveted truss connected by auxiliary bolts. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 It is a schematic diagram of the overall three-dimensional structure of the present invention; Figure 2 It is a schematic diagram of the structure of the first supporting part and the second supporting part of the present invention; Figure 3 It is a schematic diagram of the three-dimensional structure of the overlapping bottom plate and the positioning bottom plate of the present invention; Figure 4 It is a schematic diagram of the connection structure of the first riveted truss and the second riveted truss of the present invention; Figure 5 It is a schematic diagram of the installation structure of the first supporting column and the first riveted truss of the present invention; Figure 6 It is a schematic diagram of the three-dimensional structure of the lock pin sleeve of the present invention.

[0023] Figure 7 For the present invention Figure 6 The enlarged structural diagram at A in the middle; Figure 8 This is a schematic diagram of the installation structure of the lock pin sleeve of the present invention. Fig. 9 It is a schematic diagram of the meshing structure between the driving gear ring and the driving gear of the present invention; Fig.10 Schematic diagram of the connection structure between the threaded sliding rod and the supporting horizontal column of the present invention Fig.11 It is a schematic diagram of the installation structure of the threaded sliding rod and the locking pin sleeve of the present invention; Fig.12 It is a schematic diagram of the structure of the lifting horizontal plate after sliding of the present invention.

[0024] In the figure: 1. truss body; 2. overlapping bottom plate; 3. positioning bottom plate; 4. first supporting column; 5. second supporting column; 6. first oblique tie rod; 7. first riveted truss; 8. second oblique tie rod; 9. second riveted truss; 10. oblique positioning rod; 11. locking pin sleeve; 12. driving gear ring; 13. driving gear; 14. threaded sleeve; 15. threaded slide rod; 16. supporting cross column; 17. riveted cross plate; 18. pressure plate; 19. main guide rack; 20. guide gear; 21. auxiliary guide rack; 22. lifting cross plate. DETAILED DESCRIPTION

[0025] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the implementation regulations described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0026] See also Figure 1-Figure 12 , the present invention provides the following technical solutions: Embodiment 1: In order to solve the problems existing in the steel pipe riveting mechanism of the existing TV tower truss, this embodiment adopts the following technical scheme: a steel pipe riveting structure of a multi-node TV tower truss, including a truss body 1, and a lap bottom plate 2 arranged at equal angles on the bottom surface of the truss body 1, and the outer ends of adjacent lap bottom plates 2 are fixedly connected to positioning bottom plates 3; the top of the truss body 1 includes a first support portion, and the first support portion includes a first support column 4, and the bottom end of the first support column 4 is detachably mounted on the middle part of the top surface of the lap bottom plate 2 by bolts; the first support portion includes a first oblique tie rod 6, and the outer end of the first oblique tie rod 6 is fixedly connected to the outer side of the top surface of the lap bottom plate 2 arranged at equal angles, and the inner ends of the first oblique tie rod 6 are fixedly connected to the middle part of the first riveted truss 7; the outer end of the first riveted truss 7 included in the first support portion is arranged at the upper end of the adjacent first support column 4, and the bottom surface of the first riveted truss 7 arranged at equal angles is fixedly connected to the top end of the oblique positioning rod 10.

[0027] A second supporting portion is arranged above the first supporting portion, and the second supporting portion includes a second supporting column 5, and the bottom end of the second supporting column 5 is detachably mounted on the top end of the first supporting column 4 included in the first supporting portion by bolts; the second supporting portion includes a second oblique tie rod 8, and the outer end of the second oblique tie rod 8 is fixedly connected to the outer end of the top surface of the overlapping base plate 2 set at an equal angle, and the inner ends of the second oblique tie rods 8 are fixedly connected to the middle part of the second riveted truss 9; the outer end of the second riveted truss 9 included in the second supporting portion is set at the upper end of the adjacent second oblique tie rod 8, and the top surface of the second riveted truss 9 set at an equal angle is fixedly connected to the bottom end of the oblique positioning rod 10.

[0028] like Figure 2-Figure 5 As shown, the first supporting part and the second supporting part included in the building frame body 1 are both installed on the top surfaces of the overlapping bottom plate 2 and the positioning bottom plate 3, and the overlapping bottom plate 2 and the positioning bottom plate 3 distributed at equal angles form a circular ring structure and are connected to the supporting columns of the building frame body 1 to form a supporting effect for the first supporting part and the second supporting part.

[0029] The first support portion is connected by first support columns 4 set at equal angles through a first riveted truss 7, and is connected to the top surface of the overlapping base plate 2 through a first oblique tie rod 6 in the middle of the first riveted truss 7, thereby ensuring the stability of the first support columns 4.

[0030] The second supporting part includes a second supporting column 5 which is inserted and locked on the top surface of the first supporting column 4, and adjacent second supporting columns 5 are connected to each other through a second riveted truss 9, and are similarly connected to the top surface of the overlapping base plate 2 by a second oblique pull rod 8, so as to realize the construction of the overall structure.

[0031] Embodiment 2: In order to solve the problems existing in the steel pipe riveting mechanism of the existing TV tower frame, this embodiment adopts the following technical scheme: the first support part and the second support part both include a locking pin sleeve 11, and the locking pin sleeve 11 is fixedly installed at the top of the first support column 4 and the top of the second support column 5 according to the number required by the structure, and the outer rotation of the locking pin sleeve 11 is provided with a lockable driving gear ring 12, and the outer rotation of the locking pin sleeve 11 is provided with a driving gear 13 through a bearing and the like. The driving gear ring 12 is meshedly connected with the driving gear 13; a threaded sleeve 14 is fixedly provided at the center position of the driving gear 13 outside the locking pin sleeve 11, and a threaded slide rod 15 is provided on the internal thread of the threaded sleeve 14, and the threaded slide rod 15 and the locking pin sleeve 11 are slidable through a concave-convex snap-fit ​​structure, and a supporting cross column 16 is inserted and installed on the inner end of the locking pin sleeve 11, and the supporting cross column 16 is locked and positioned through the inner end of the threaded slide rod 15 that can slide inside the locking pin sleeve 11.

[0032] like Figure 9-11As shown, the locking pin sleeve 11 is welded to the top of the first supporting column 4 and the top of the second supporting column 5 according to structural requirements, and a supporting cross column 16 is installed between the corresponding locking pin sleeves 11, thereby ensuring the stability of the connection between the first supporting part and the second supporting part. At the same time, the end of the supporting cross column 16 is inserted into the interior of the locking pin sleeve 11, and the driving gear ring 12 outside the locking pin sleeve 11 is rotated to drive the meshing driving gear 13, so that it drives the internal threaded sleeve 14 to rotate, and the threaded slide rod 15 threadedly connected to the threaded sleeve 14 is clamped at the connection of the locking pin sleeve 11 through the external concave-convex structure, so that the rotating threaded sleeve 14 can drive the threaded slide rod 15 to slide inwardly, and then be inserted into the outer end of the supporting cross column 16, thereby locking the supporting cross column 16, ensuring the firmness of the support cross column 16 in this structure to connect the first supporting part with the second supporting part.

[0033] The first support part and the second support part both include a riveted cross plate 17, and the riveted cross plate 17 is fixedly installed on the top of the first support column 4 and the second support column 5 according to the number required by the structure, and a pressure plate 18 is elastically installed on the top of the riveted cross plate 17, and the pressure plate 18 is driven to descend when the riveted cross plate 17 and the first riveted truss 7 and the second riveted truss 9 are installed by bolts; a main guide rack 19 is fixedly arranged on the outer side of the riveted cross plate 17, and the main guide rack 19 is slidably arranged on the first support A guide gear 20 mounted with a bearing is meshed inside the supporting column 4 and the second supporting column 5, and below the main guide rack 19, a secondary guide rack 21 is meshed and slidably arranged on the other side of the guide gear 20; a lifting cross plate 22 is slidably arranged inside the first supporting column 4 and the second supporting column 5, and the outer end of the lifting cross plate 22 is fixedly connected to the bottom end of the secondary guide rack 21, so as to lift and limit the bottom surface of the first riveted truss 7 and the second riveted truss 9 to ensure the stability of the structure.

[0034] like Figure 6-Figure 7 , Fig.12 As shown, the riveted cross plate 17 connects the first supporting column 4 with the second supporting column 5, and locks the first riveted truss 7 with the second riveted truss 9 to connect the first supporting part with the second supporting part. The first riveted truss 7 and the second riveted truss 9 are installed on the bottom surface of the corresponding riveted cross plate 17 by bolts. After the locking of the bolts drives the pressure plate 18 and the main guide rack 19 on the top surface of the riveted cross plate 17 to descend, the meshing and rotating guide gear 20 rotates and drives the auxiliary guide rack 21 to slide, so that it drives the lifting cross plate 22 at the outer end to rise and thus lift it on the bottom surface of the first riveted truss 7 and the second riveted truss 9, thereby ensuring the firmness of the installation of the first riveted truss 7 and the second riveted truss 9 connected by auxiliary bolts, and avoiding the problem of insufficient strength due to metal fatigue.

[0035] Although the present invention has been described in detail with reference to the aforementioned embodiments, it is still possible for those skilled in the art to modify the technical solutions described in the aforementioned embodiments, or to make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A steel pipe riveted structure of a multi-node TV tower truss, comprising a truss body (1), and overlapping bottom plates (2) arranged at equal angles on the bottom surface of the truss body (1), and the outer ends of adjacent overlapping bottom plates (2) are fixedly connected to positioning bottom plates (3); It is characterized in that Also includes: The top of the building frame body (1) includes a first support portion, and the first support portion includes a first support column (4), and the bottom end of the first support column (4) is detachably mounted on the middle of the top surface of the overlapping bottom plate (2) by means of bolts; A second support portion is arranged above the first support portion, and the second support portion includes a second support column (5), and the bottom end of the second support column (5) is detachably mounted on the top end of the first support column (4) included in the first support portion by means of bolts.

2. The steel pipe riveted structure of a multi-node TV tower frame according to claim 1, characterized in that: The first support portion comprises a first oblique tie rod (6), and the outer end of the first oblique tie rod (6) is fixedly connected to the outer side of the top surface of the overlapping bottom plate (2) arranged at an equal angle, and the inner end of the first oblique tie rod (6) is fixedly connected to the middle part of the first riveted truss (7).

3. The steel pipe riveted structure of a multi-node TV tower frame according to claim 1, characterized in that: The second support portion comprises a second oblique tie rod (8), and the outer end of the second oblique tie rod (8) is fixedly connected to the outer end of the top surface of the overlapping bottom plate (2) arranged at an equal angle, and the inner end of the second oblique tie rod (8) is fixedly connected to the middle part of the second riveted truss (9).

4. The steel pipe riveted structure of a multi-node TV tower frame according to claim 2, characterized in that: The outer end of the first riveted truss (7) included in the first supporting portion is arranged at the upper end of the adjacent first supporting column (4), and the bottom surface of the first riveted truss (7) arranged at an equal angle is fixedly connected to the top end of the oblique positioning rod (10).

5. The steel pipe riveted structure of a multi-node TV tower frame according to claim 3 is characterized in that: The outer end of the second riveted truss (9) included in the second support portion is arranged at the upper end of the adjacent second oblique tension rod (8), and the top surface of the second riveted truss (9) arranged at an equal angle is fixedly connected to the bottom end of the oblique positioning rod (10).

6. The steel pipe riveted structure of a multi-node TV tower frame according to claim 1, characterized in that: The first support portion and the second support portion both include a locking pin sleeve (11), and the locking pin sleeves (11) are fixedly mounted on the top of the first support column (4) and the top of the second support column (5) in the number required by the structure, and a lockable driving toothed ring (12) is rotatably arranged on the outside of the locking pin sleeve (11), and a driving gear (13) is rotatably arranged on the outside of the locking pin sleeve (11) via a bearing at an equal angle, and the driving toothed ring (12) and the driving gear (13) are meshingly connected.

7. The steel pipe riveted structure of a multi-node TV tower frame according to claim 6, characterized in that: A threaded sleeve (14) is fixedly arranged at the center position of the external driving gear (13) of the lock pin sleeve (11), and a threaded slide rod (15) is arranged on the internal thread of the threaded sleeve (14), and the threaded slide rod (15) and the lock pin sleeve (11) are slidable via a concave-convex engaging structure, and a supporting cross column (16) is inserted and installed at the inner end of the lock pin sleeve (11), and the supporting cross column (16) is locked and positioned via the inner end of the threaded slide rod (15) that is slidable inside the lock pin sleeve (11).

8. The steel pipe riveted structure of a multi-node TV tower frame according to claim 1, characterized in that: The first support portion and the second support portion both include a riveted cross plate (17), and the riveted cross plates (17) are fixedly mounted on the top ends of the first support column (4) and the second support column (5) in the number required by the structure, and a pressure plate (18) is elastically mounted on the top of the riveted cross plate (17), and when the riveted cross plate (17) is mounted with the first riveted truss (7) and the second riveted truss (9) by bolts, the pressure plate (18) is driven to descend.

9. The steel pipe riveted structure of a multi-node TV tower frame according to claim 8, characterized in that: A main guide rack (19) is fixedly arranged on the outer side of the riveted cross plate (17), and the main guide rack (19) is slidably arranged inside the first supporting column (4) and the second supporting column (5), and a guide gear (20) mounted on a bearing is meshedly arranged below the main guide rack (19), and a secondary guide rack (21) is slidably meshed on the other side of the guide gear (20).

10. The steel pipe riveted structure of a multi-node TV tower frame according to claim 9, characterized in that: A lifting cross plate (22) is slidably provided inside the first supporting column (4) and the second supporting column (5), and the outer end of the lifting cross plate (22) is fixedly connected to the bottom end of the auxiliary guide rack (21) so as to lift and limit the bottom surface of the first riveted truss (7) and the second riveted truss (9) to ensure the stability of the structure.

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