Telescopic joint device and lattice frame

Abstract

The present invention discloses a telescopic joint device and a lattice frame, wherein the left and right ends of a left sleeve are respectively provided with a first and a second flange, the left and right ends of a right sleeve are respectively provided with a third and a fourth flange, and the centers of the second and fourth flanges are provided with through holes; the left end of a transmission rod passes through the through hole on the second flange and extends into the inner cavity of the left sleeve, and the right end of the transmission rod passes through the through hole on the fourth flange and extends into the inner cavity of the right sleeve; the ends of both ends of the transmission rod are respectively provided with a first baffle and a second baffle; a first elastic element is provided between the first baffle and the first flange and between the second baffle and the second baffle; a second elastic element is provided between the first baffle and the second flange and between the second baffle and the fourth flange; a third elastic element is provided between the second flange and the fourth flange; and the second flange and the fourth flange are connected by a fourth elastic element. The present invention can prevent the lattice beam column from generating a large stress when a large deformation occurs, resulting in an unstable overall structure and a safety risk.

Description

Technical Field

[0001] The present invention relates to the field of substation frames and power transmission equipment, and in particular to an expansion joint device and a lattice frame. The present invention can be used in tower structures such as lattice steel pipe substation frames and power transmission towers. Background Art

[0002] With the strengthening of national economic strength and the need for social development, more and more substations are being built. In addition, in the structural form of substations, more and more substations adopt lattice beam-column structures. This form is very necessary. First, it meets the requirements of foreign projects; second, the ultra-high voltage level has a high frame height, a large span, and a large load. Therefore, under various working conditions, the lattice beams and columns will produce excessive deformation, thereby generating greater stress, resulting in risks in the structural stability and safety of the lattice beams and columns. Summary of the invention

[0003] The object of the present invention is to provide an expansion joint device and a lattice frame to prevent the lattice beams and columns from generating large stresses when large deformation occurs, thereby causing overall structural instability and safety risks.

[0004] To achieve the above object, the technical solution adopted by the present invention is:

[0005] A telescopic joint device comprises a left sleeve, a right sleeve and a transmission rod, wherein the left sleeve is provided with a first flange and a second flange at the left and right ends respectively, a through hole is provided at the center of the second flange, and the right sleeve is provided with a third flange and a fourth flange at the left and right ends respectively, a through hole is provided at the center of the fourth flange; the left end of the transmission rod passes through the through hole on the second flange and extends into the inner cavity of the left sleeve, and the right end of the transmission rod passes through the through hole on the fourth flange and extends into the inner cavity of the right sleeve; the ends of both ends of the transmission rod are provided with a first baffle and a second baffle respectively; a first elastic element is provided between the first baffle and the first flange and between the second baffle and the third flange; a second elastic element is provided between the first baffle and the second flange and between the second baffle and the fourth flange; a third elastic element is provided between the second flange and the fourth flange; the second flange and the fourth flange are connected via a fourth elastic element.

[0006] The first elastic element is a rubber spring.

[0007] The second elastic element is a structure composed of a plurality of disc springs, and the disc springs are sleeved on the transmission rod.

[0008] The third elastic element is a structure composed of a plurality of disc springs, and the disc springs are sleeved on the transmission rod.

[0009] The fourth elastic element adopts a coil spring device, and a plurality of coil spring devices are evenly distributed along the circumference of the second flange and the fourth flange; the coil spring device includes a coil spring, a fixed clamp and a screw, and the two ends of the coil spring are respectively fixedly connected with the fixed clamp, and the fixed clamp is provided with a screw; the second flange and the fourth flange are provided with a through hole for the screw to pass through, and the screw is matched with a nut connected.

[0010] The fixed base includes a first fixed base and a second fixed base. The first fixed base is provided with a through hole for the coil spring to pass through. The part of the coil spring passing through the through hole is bent. The first fixed base and the second fixed base are fixedly connected by bolts and the bent part of the coil spring is clamped. The screw is fixedly connected to the second fixed base and is coaxial with the coil spring.

[0011] Flange stiffening plates are provided on the first flange, the second flange, the third flange and the fourth flange.

[0012] The edges of the first baffle and the second baffle are provided with round chamfers, and the through holes on the second flange and the through holes on the fourth flange are provided with round chamfers.

[0013] A lattice frame provided with the above-mentioned telescopic joint device of the present invention comprises a lattice column and a lattice beam, wherein the lattice beam comprises a lattice beam front section and a lattice beam rear section, one end of the lattice beam front section is fixedly connected to the lattice column, the other end of the lattice beam front section is fixedly connected to the first flange of the telescopic joint device, and the lattice beam rear section is fixedly connected to the third flange of the telescopic joint device.

[0014] A flange stiffening plate is provided at the connection between the front section of the lattice beam and the first flange; and a flange stiffening plate is provided at the connection between the rear section of the lattice beam and the third flange.

[0015] The present invention has the following beneficial effects:

[0016] The telescopic joint device of the present invention is provided with a first elastic element between the first baffle and the first flange and between the second baffle and the second baffle; a second elastic element is provided between the first baffle and the second flange and between the second baffle and the fourth flange; a third elastic element is provided between the second flange and the fourth flange; the second flange and the fourth flange are connected by the fourth elastic element, and this arrangement structure can ensure that the entire telescopic joint device can withstand both axial tensile stress and axial compressive stress; the telescopic joint device can be connected to an external component by using the first flange and the third flange. When in use, the telescopic joint device of the present invention is installed on an external component (such as a lattice frame) to withstand axial To the position of the force, the telescopic joint device of the present invention utilizes the first elastic element, the second elastic element, the third elastic element and the fourth elastic element to dissipate energy. When working, the telescopic joint device of the present invention transmits force in the following way: when the structural rod is subjected to axial tensile stress, it is deformed and the second elastic element and the fourth elastic element of the telescopic joint device resist tension to release the stress; when the structural rod is subjected to axial compressive stress, it is deformed and the third elastic element and the fourth elastic element of the telescopic joint device resist compression to release the stress; the first elastic element can withstand relatively small compressive stress and impact load; therefore, the lattice beam column produces a large deformation, and the elastic elements of the device dissipate energy and reset. Therefore, the telescopic joint device of the present invention can prevent the external components (such as the lattice frame) from generating large stress when they are subjected to large deformation, resulting in the instability of the overall structure and the existence of safety risks.

[0017] In the lattice frame of the present invention, one end of the front section of the lattice beam is fixedly connected to the lattice column, the other end of the front section of the lattice beam is fixedly connected to the first flange of the above-mentioned telescopic joint device of the present invention, and the rear section of the lattice beam is fixedly connected to the third flange of the telescopic joint device. Therefore, the lattice frame of the present invention can release the stress at the connection when the beam and column undergo large deformation, making the overall structure more stable and safe. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 is a cross-sectional view of an expansion joint device according to an embodiment of the present invention;

[0019] Figure 2 A cross-sectional view of a telescopic joint restraining and fixing device according to an embodiment of the present invention;

[0020] Figure 3 It is a cross-sectional view of the telescopic joint transmission device according to an embodiment of the present invention;

[0021] FIG4( a ) is a first structural diagram of a combination of several disc springs according to an embodiment of the present invention;

[0022] FIG4( b ) is a second structural diagram of a combination of several disc springs according to an embodiment of the present invention;

[0023] FIG4( c ) is a third structural diagram of a combination of several disc springs according to an embodiment of the present invention;

[0024] FIG5( a ) is a perspective view of a coil spring device according to an embodiment of the present invention;

[0025] FIG5( b ) is a front view of a coil spring device according to an embodiment of the present invention;

[0026] FIG5( c ) is an exploded view of one end of a coil spring device according to an embodiment of the present invention;

[0027] FIG6( a ) is a schematic diagram of the arrangement of flange stiffening plates on the first flange and the third flange of an embodiment of the present invention;

[0028] FIG6( b ) is a schematic diagram of the arrangement of flange stiffening plates on the second flange and the fourth flange of an embodiment of the present invention;

[0029] Figure 7 It is a schematic diagram of the connection between the telescopic joint device and the beam column in the lattice structure of an embodiment of the present invention;

[0030] Figure 8 It is a schematic diagram of the position of the contraction device in the lattice structure of an embodiment of the present invention.

[0031] The reference numerals are as follows:

[0032] 1—telescopic joint device; 2—lattice column; 3—lattice beam; 4—left sleeve; 5—right sleeve; 6—transmission rod; 6-1—baffle; 6-2—second baffle; 7—helical spring device; 7-1—helical spring; 7-1-1—bending portion; 7-2—fixing seat; 7-2-1—first fixing seat; 7-2-2—second fixing seat; 7-3—screw rod; 7-4—bolt; 8—rubber spring; 9—first disc spring assembly; 10—second disc spring assembly; 11—third disc spring assembly; 12—first flange; 13—third flange; 14—second flange: 15—fourth flange; 16—through hole. DETAILED DESCRIPTION

[0033] The following will be combined with the accompanying drawings to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, other implementation methods or equivalent replacements obtained by those skilled in the art without creative work are all within the scope of protection of the present invention.

[0034] Reference Figure 1 to Figure 3The telescopic joint device of the present invention comprises a left sleeve 4, a right sleeve 5 and a transmission rod 6. The left sleeve 4 is provided with a first flange 12 and a second flange 14 at the left and right ends respectively, and a through hole 16 is provided at the center of the second flange 14. The right sleeve 5 is provided with a third flange 13 and a fourth flange 15 at the left and right ends respectively, and a through hole 16 is provided at the center of the fourth flange 15. The left end of the transmission rod 6 passes through the through hole 16 on the second flange 14 and extends into the inner cavity of the left sleeve 4. The right end of the transmission rod 6 passes through the through hole 16 on the fourth flange 15 and extends into the inner cavity of the right sleeve 4. The inner cavity of the cylinder 5; the ends of both ends of the transmission rod 6 are respectively provided with a first baffle 6-1 and a second baffle 6-2; a first elastic element is provided between the first baffle 6-1 and the first flange 12 and between the second baffle 6-2 and the third flange 13; a second elastic element is provided between the first baffle 6-1 and the second flange 14 and between the second baffle 6-2 and the fourth flange 15; a third elastic element is provided between the second flange 14 and the fourth flange 15; the second flange 14 and the fourth flange 15 are connected by a fourth elastic element.

[0035] As a preferred embodiment of the present invention, the first elastic element is a rubber spring 8 .

[0036] As a preferred embodiment of the present invention, the second elastic element adopts a structure composed of a plurality of disc springs. The structure composed of the plurality of disc springs is shown in FIG. 4( a ) to FIG. 4 ( c ), and the disc springs are sleeved on the transmission rod 6 .

[0037] As a preferred embodiment of the present invention, the third elastic element adopts a structure composed of a plurality of disc springs. The structure composed of the plurality of disc springs is shown in FIG. 4( a ) to FIG. 4 ( c ), and the disc springs are sleeved on the transmission rod 6 .

[0038] As a preferred embodiment of the present invention, Figure 1 as well as Figure 5(a) to Figure 5(c) As shown, the fourth elastic element adopts a coil spring device 7, and a plurality of coil spring devices 7 are evenly distributed along the circumference of the second flange 14 and the fourth flange 15, and generally four coil spring devices 7 are used; the coil spring device 7 includes a coil spring 7-1, a fixed base 7-2 and a screw 7-3, and the two ends of the coil spring 7-1 are respectively fixedly connected with the fixed base 7-2, and the fixed base 7-2 is provided with a screw 7-3; the second flange 14 and the fourth flange 15 are provided with a through hole for the screw 7-3 to pass through, and the screw 7-3 is matched and connected with a nut; when installing, the coil spring device 7 is placed between the second flange 14 and the fourth flange 15, the screw 7-3 is passed through the through hole provided on the second flange 14 and the fourth flange 15 for the screw 7-3 to pass through, and then the nut is matched and installed on the screw 7-3, and the entire coil spring device 7 is connected with the second flange 14 and the fourth flange 15.

[0039] As a preferred embodiment of the present invention, as shown in Figure 5(c), the fixed base 7-2 includes a first fixed base 7-2-1 and a second fixed base 7-2-2. The first fixed base 7-2-1 is provided with a through hole for the coil spring 7-1 to pass through. The portion of the coil spring 7-1 passing through the through hole is bent. The first fixed base 7-2-1 and the second fixed base 7-2-2 are fixedly connected by bolts 7-4 and clamp the bent portion 7-1-1 of the coil spring 7-1 (see Figures 5(a) and 5(b)); the screw 7-3 is fixedly connected to the second fixed base 7-2-2 and is coaxial with the coil spring 7-1.

[0040] As a preferred embodiment of the present invention, as shown in FIG. 6( a ) and FIG. 6( b ), flange stiffening plates are provided on the first flange 12 , the second flange 14 , the third flange 13 and the fourth flange 15 .

[0041] As a preferred embodiment of the present invention, the edges of the first baffle 6 - 1 and the second baffle 6 - 2 are provided with round chamfers, and the through holes 16 on the second flange 14 and the through holes 16 on the fourth flange 15 are provided with round chamfers.

[0042] As a preferred embodiment of the present invention, the through hole 16 on the second flange 14 and the through hole 16 on the fourth flange 15 are chamfered to reduce friction with the transmission rod 6 .

[0043] As a preferred embodiment of the present invention, refer to Figure 1 The telescopic joint device of the present invention is a symmetrical structure. Figure 1 Taking the orientation shown in as an example, the telescopic joint device has a left-right and top-bottom symmetrical structure.

[0044] Reference Figure 7 and Figure 8 The lattice frame of the present invention is provided with the above-mentioned telescopic joint device of the present invention. The lattice frame of the present invention includes a lattice column 2 and a lattice beam 3. The lattice beam 3 includes a lattice beam front section and a lattice beam rear section. One end of the lattice beam front section is fixedly connected to the lattice column 2, and the other end of the lattice beam front section is fixedly connected to the first flange 12 of the telescopic joint device, and the lattice beam rear section is fixedly connected to the third flange 13 of the telescopic joint device.

[0045] As a preferred embodiment of the present invention, a flange stiffening plate is provided at the connection between the front section of the lattice beam and the first flange 12 ; and a flange stiffening plate is provided at the connection between the rear section of the lattice beam and the third flange 13 .

[0046] Example

[0047] like Figure 1 and Figure 2As shown, the telescopic joint device of this embodiment has a left-right symmetrical structure. The left sleeve 4 is a cylindrical cylinder, one end of which is closed by a first flange 12, and a second flange 14 is arranged at the other end. A through hole 16 is opened in the center of the second flange 14, and the through hole 16 can satisfy the passage of the transmission rod 16; the right sleeve 5 is a cylindrical cylinder, one end of which is closed by a third flange 13, and a fourth flange 15 is arranged at the other end. A through hole 16 is opened in the center of the fourth flange 15, and the through hole 16 can satisfy the passage of the transmission rod 6.

[0048] like Figure 3 As shown, the two ends of the transmission rod 6 are respectively provided with a first baffle 6-1 and a second baffle 6-2; the transmission rod 6 passes through the through hole 16 on the second flange 14 of the left sleeve 4 and the through hole 16 on the fourth flange 15 on the right sleeve 5, and the two ends of the transmission rod 6 fit in the cavities of the left sleeve 4 and the right sleeve 5.

[0049] As shown in Figure 4, the second elastic element in the left sleeve 4 and the second elastic element in the right sleeve 5 have the same structure, and respectively adopt the first disc spring assembly 9 (as shown in Figure 4 (a)) and the third disc spring assembly 11 (as shown in Figure 4 (c)), and the first disc spring assembly 9 and the third disc spring assembly 11 are arranged in a left-right symmetrical form; the third elastic element adopts the second disc spring assembly 10 (as shown in Figure 4 (b)), and the second disc spring assembly 10 itself is a left-right symmetrical structure; the number of disc springs in the first disc spring assembly 9, the second disc spring assembly 10 and the third disc spring assembly 11 can be adjusted according to the load-bearing and deformation requirements. The disc spring is one of the main components of the telescopic joint device for load-bearing and deformation. The choice of the disc spring combination form is the main factor affecting the load-bearing capacity and deformation capacity of the telescopic joint. The present invention adopts the form of a composite combination, and different matching combinations can meet different deformation requirements; different overlapping combinations can meet different axial force requirements.

[0050] The fourth elastic element of this embodiment adopts Figure 5(a) to Figure 5(c) In the coil spring device 7 shown, the coil spring 7-1 is a coil spring made of NiTi alloy.

[0051] In this embodiment, the first flange 12 and the third flange 13 adopt the structure shown in Figure 6(a), and the second flange 14 and the fourth flange 15 adopt the flange structure shown in Figure 6(b). Flange stiffening plates are provided on the first flange 12, the second flange 14, the third flange 13 and the fourth flange 15.

[0052] When the telescopic joint device of this embodiment is working, the force transmission path of this telescopic joint device is as follows: under the deformation action, the spiral spring device 7, the first disc spring assembly 9 and the third disc spring assembly 11 deform when the structural rod is subjected to axial tensile stress to release energy consumption; under the deformation action, the spiral spring device 7 and the second disc spring assembly 10 deform when the structural rod is subjected to axial compressive stress to release energy consumption; the rubber spring 8 can withstand relatively small compressive stress and withstand impact load.

[0053] Regardless of the web member, chord member or supporting member, the axial force is much greater than the bending moment and shear force. Therefore, when applying force, the bending moment and shear force can be ignored and only the axial force can be applied.

[0054] Example

[0055] The lattice frame of this embodiment is provided with the telescopic joint device of the above embodiment, and the lattice frame of this embodiment includes a lattice column 2 and a lattice beam 3, and the lattice beam 3 includes a lattice beam front section and a lattice beam rear section, one end of the lattice beam front section is fixedly connected to the lattice column 2, and the other end of the lattice beam front section is fixedly connected to the first flange 12 of the telescopic joint device, and the lattice beam rear section is fixedly connected to the third flange 13 of the telescopic joint device. A flange stiffening plate is provided at the connection between the lattice beam front section and the first flange 12; and a flange stiffening plate is provided at the connection between the lattice beam rear section and the third flange 13.

[0056] During construction, the lattice frame of this embodiment needs to be pre-compressed or pre-tensioned according to the stress state of the rods at room temperature to ensure the bearing capacity of the nodes at room temperature.

[0057] The following points should be noted when installing the expansion joint device of the present invention:

[0058] According to the size of the standardized expansion joint device, a certain interval of the lattice frame beam which is closer to the lattice column is selected to set the temperature expansion joint device.

[0059] Note here:

[0060] 1. The expansion joint device should not be set at the place where the internal force of the lattice beam is large;

[0061] 2. The expansion joint device should be close to the lattice beam-column node to facilitate construction;

[0062] 3. The expansion joint device should not be directly connected to the column head of the lattice beam, which makes it difficult to replace in the event of a failure.

[0063] The telescopic restraint fixing device, telescopic energy dissipation device and telescopic transmission device need to be processed and compounded in the factory. After the factory processing is completed, the telescopic joint device is formed, and the device has sufficient rigidity, strength and stability.

[0064] The preferred embodiment of the present invention is applied to the lattice frame expansion joint device and has the following characteristics:

[0065] (1) The expansion joint device does not affect the electrical process requirements of the original lattice beam column.

[0066] (2) The expansion joint device has sufficient strength and rigidity to achieve the energy absorption function without causing significant deformation, thereby maintaining the stability of the overall structure.

[0067] (3) The telescopic joint device is easy to use, has a simple structure, and is not prone to failure, making it maintenance-free throughout the life cycle of the frame.

[0068] (4) The telescopic joint device has the characteristic of being reusable, that is, if the frame is dismantled due to other factors, the telescopic joint device can be dismantled and used for other frames.

[0069] (5) The expansion joint device is replaceable, that is, if it is damaged due to fatigue, natural disasters, etc., it can be easily replaced.

[0070] The expansion joint device and the lattice frame of the present invention can overcome the influence of strong wind, icing, earthquake and temperature stress on the frame; the ends of the expansion joint device are connected by flange bolts, which makes it convenient and quick to connect components during construction and reduces the construction difficulty; it can be applied to rods with different cross-sectional diameters, the expansion joint device has a simple structure, has a wide range of applications, and is convenient for processing, industrial production, installation, maintenance and replacement.

[0071] The technical method adopted by the present invention also has the following beneficial effects:

[0072] 1. Avoid the situation where the structure is too long, which will result in a large structure cross-section and increased structure engineering workload.

[0073] If the frame is too long, it is necessary to consider the deformation effects of strong winds, icing, earthquakes, and temperature stress on the structure, and the stiffness will be increased by changing the frame cross-sectional height, resulting in an increase in the frame engineering workload. By using the expansion joint device of the present invention to release stress through the expansion joint, there is no need to consider increasing the stiffness by changing the cross-sectional height to eliminate structural deformation when the frame is too long.

[0074] 2. At the same time, the method of disconnecting the extra-long racks due to excessive temperature stress is reduced by setting expansion joints.

[0075] Due to excessive temperature stress, the structure of the extra-long racks is deformed too much, and expansion joints need to be set to reduce the impact of temperature stress on the extra-long racks. If the extra-long racks are installed with the expansion joint device, the device has shock absorption, energy dissipation and self-resetting functions, and the temperature stress will be released through the elastic element, so there is no need to set expansion joints.

[0076] 3. Save steel and have certain economic benefits.

Claims

1. An expansion joint device, characterized in that: The invention comprises a left sleeve (4), a right sleeve (5) and a transmission rod (6); the left sleeve (4) is provided with a first flange (12) and a second flange (14) at the left and right ends respectively; a through hole (16) is provided at the center of the second flange (14); the right sleeve (5) is provided with a third flange (13) and a fourth flange (15) at the left and right ends respectively; a through hole (16) is provided at the center of the fourth flange (15); the left end of the transmission rod (6) passes through the through hole (16) on the second flange (14) and extends into the inner cavity of the left sleeve (4); the right end of the transmission rod (6) passes through the through hole (16) on the fourth flange (15) and extends into the right sleeve (5); a first baffle (6-1) and a second baffle (6-2) are respectively provided at the ends of both ends of the transmission rod (6); a first elastic element is provided between the first baffle (6-1) and the first flange (12) and between the second baffle (6-2) and the third flange (13); a second elastic element is provided between the first baffle (6-1) and the second flange (14) and between the second baffle (6-2) and the fourth flange (15); a third elastic element is provided between the second flange (14) and the fourth flange (15); and the second flange (14) and the fourth flange (15) are connected via a fourth elastic element; The first flange (12), the second flange (14), the third flange (13) and the fourth flange (15) are all provided with flange stiffening plates; The through hole (16) on the second flange (14) and the through hole (16) on the fourth flange (15) are provided with rounded chamfers.

2. The telescopic joint device according to claim 1, characterized in that: The first elastic element is a rubber spring (8).

3. The telescopic joint device according to claim 1, characterized in that: The second elastic element adopts a structure formed by combining a plurality of disc springs, and the disc springs are sleeved on the transmission rod (6).

4. The expansion joint device according to claim 1, characterized in that: The third elastic element adopts a structure formed by combining a plurality of disc springs, and the disc springs are sleeved on the transmission rod (6).

5. The expansion joint device according to claim 1, characterized in that: The fourth elastic element adopts a coil spring device (7), and a plurality of coil spring devices (7) are evenly distributed along the circumference of the second flange (14) and the fourth flange (15); the coil spring device (7) comprises a coil spring (7-1), a fixed clamping seat (7-2) and a screw rod (7-3), and the two ends of the coil spring (7-1) are respectively fixedly connected to the fixed clamping seat (7-2), and the fixed clamping seat (7-2) is provided with a screw rod (7-3); the second flange (14) and the fourth flange (15) are provided with through holes for the screw rod (7-3) to pass through, and the screw rod (7-3) is matched and connected with a nut.

6. The expansion joint device according to claim 5, characterized in that: The fixed clamping seat (7-2) comprises a first fixed seat (7-2-1) and a second fixed seat (7-2-2); the first fixed seat (7-2-1) is provided with a through hole for the coil spring (7-1) to pass through; the portion of the coil spring (7-1) passing through the through hole is in a bent shape; the first fixed seat (7-2-1) and the second fixed seat (7-2-2) are fixedly connected by a bolt (7-4) and the bent portion (7-1-1) of the coil spring (7-1) is clamped; the screw rod (7-3) is fixedly connected to the second fixed seat (7-2-2) and is coaxial with the coil spring (7-1).

7. The expansion joint device according to claim 1, characterized in that: The edges of the first baffle plate (6-1) and the second baffle plate (6-2) are provided with round chamfers.

8. A lattice frame provided with the telescopic joint device according to any one of claims 1 to 7, characterized in that: The lattice beam (3) comprises a lattice column (2) and a lattice beam (3), wherein the lattice beam (3) comprises a lattice beam front section and a lattice beam rear section, wherein one end of the lattice beam front section is fixedly connected to the lattice column (2), the other end of the lattice beam front section is fixedly connected to a first flange (12) of the telescopic joint device, and the lattice beam rear section is fixedly connected to a third flange (13) of the telescopic joint device.

9. The lattice frame according to claim 8, characterized in that: A flange stiffening plate is provided at the connection between the front section of the lattice beam and the first flange (12); and a flange stiffening plate is provided at the connection between the rear section of the lattice beam and the third flange (13).

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