Tower

Abstract

The embodiment of the utility model provides a tower. The tower comprises a bottom frame, a movable platform and a bottom layer prying frame. The top of the bottom frame is provided with a first sliding part extending in the first direction. The bottom layer prying frame is arranged on the top side of the bottom frame and comprises two frame bodies and two lower cross beams, the two frame bodies are arranged in a spaced mode in the first direction, the two opposite ends of the lower cross beams are correspondingly connected with the bottoms of the two frame bodies respectively, and the two lower cross beams are located on the two opposite sides of the frame bodies in the second direction respectively; wherein the first direction is perpendicular to the second direction. The moving platform is arranged between the bottom layer prying frame and the bottom frame, the moving platform is provided with a second sliding part, in a projection plane parallel to the bottom face of the lower cross beam, the projection of at least part of the area of the second sliding part is located in the projection range of the lower cross beam, and the second sliding part is in sliding fit with the first sliding part; the bottom prying frame can slide in the first direction relative to the bottom frame. The tower provided by the embodiment of the utility model is convenient to mount.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of oil production engineering machinery, and particularly relates to a tower. BACKGROUND

[0002] In the related art, in the process of oil exploitation, a pipe string is connected with a production pipe and an oil outlet pipe in a well. By installing a tower at the wellhead of an oil well, the pipe string can be supported.

[0003] However, in the process of adjusting the position of the tower, the tower in the related art needs to be moved as a whole to realize the horizontal displacement of the tower, which is inconvenient for the installation of the tower at the wellhead. CONTENT OF THE UTILITY MODEL

[0004] Therefore, the main purpose of the embodiments of the present application is to provide a tower which is convenient to install.

[0005] To achieve the above purpose, the technical scheme of the embodiments of the present application is as follows:

[0006] The embodiments of the present application provide a tower, which comprises:

[0007] A bottom frame, a top part of the bottom frame having a first sliding part extending along a first direction;

[0008] A bottom layer of a jack frame, the bottom layer of the jack frame being arranged on a top side of the bottom frame, the bottom layer of the jack frame comprising two frame bodies and two lower cross beams, the two frame bodies being arranged at intervals along the first direction, and the two lower cross beams being respectively connected to the bottom parts of the two frame bodies, and the two lower cross beams being respectively located on opposite sides of the frame body along a second direction; wherein the first direction and the second direction are perpendicular to each other;

[0009] A moving platform, the moving platform being arranged between the bottom layer of the jack frame and the bottom frame, the moving platform having a second sliding part, at least a part of the projection of the second sliding part being located in the projection range of the lower cross beam in a projection plane parallel to the bottom surface of the lower cross beam, and the second sliding part being in sliding cooperation with the first sliding part, so that the bottom layer of the jack frame can slide relative to the bottom frame along the first direction.

[0010] In an embodiment, the tower comprises a moving platform arranged between the bottom layer of the jack frame and the bottom frame, the moving platform having the second sliding part, the bottom layer of the jack frame comprising a connecting piece, the connecting piece being fixed to the bottom surface of the lower cross beam and being fixedly connected to the second sliding part, so that the bottom layer of the jack frame slides relative to the bottom frame along the first direction through the moving platform.

[0011] In one embodiment, one of the first sliding part and the second sliding part has a sliding groove, and the other has a sliding rail in sliding connection with the sliding groove.

[0012] In one embodiment, the connecting piece is located at the top side of the second sliding part and is coaxially arranged with the second sliding part along the height direction.

[0013] In one embodiment, the bottom pry frame has an initial state at the first position of the bottom frame, a first displacement state at the second position of the bottom frame, and a second displacement state at the third position of the bottom frame; wherein the second position and the third position are respectively located on the opposite sides of the first position along the first direction.

[0014] In one embodiment, the distance between the first position and the second position is greater than or equal to 50 mm and less than or equal to 400 mm; and / or,

[0015] The distance between the first position and the third position is greater than or equal to 50 mm and less than or equal to 400 mm.

[0016] In one embodiment, the bottom pry frame further comprises a diagonal brace, the frame body comprises vertical beams extending along the height direction, the opposite ends of the lower cross beam are respectively connected to the bottom ends of two vertical beams, and the opposite ends of the diagonal brace are respectively connected to the adjacent vertical beams and the lower cross beam to be inclined relative to the vertical beams and the lower cross beam.

[0017] In one embodiment, the diagonal brace and the connected vertical beams and lower cross beam enclose a reinforcing space;

[0018] The bottom pry frame further comprises a first reinforcing rod located in the reinforcing space, and the opposite ends of the first reinforcing rod are respectively connected to the diagonal brace and the lower cross beam; and / or,

[0019] The bottom pry frame further comprises a second reinforcing rod located in the reinforcing space, and the opposite ends of the second reinforcing rod are respectively connected to the diagonal brace and the vertical beam.

[0020] In one embodiment, the diagonal brace and the connected vertical beams and lower cross beam enclose a reinforcing space, the bottom pry frame further comprises a first reinforcing rod located in the reinforcing space, one end of the first reinforcing rod is connected to the lower cross beam, and the connection is located at a corresponding position on the side of the lower cross beam away from the connecting piece, and the other end of the first reinforcing rod is connected to the diagonal brace.

[0021] In one embodiment, the end of the lower crossbeam is connected to the bottom of the frame by a pin. The connector is a corner piece fixed to the bottom of the lower crossbeam. The end face of the lower crossbeam and the adjacent corner piece are located on opposite sides of the pin, so that the corner piece avoids the adjacent pin.

[0022] This application provides a tower frame, including a base frame, a bottom skid, and a moving platform. The top of the base frame has a first sliding portion extending along a first direction. The moving platform is disposed between the bottom skid and the base frame. The moving platform has a second sliding portion. In a projection plane parallel to the bottom surface of the lower crossbeam, at least a portion of the projection of the second sliding portion lies within the projection range of the lower crossbeam. The second sliding portion slides in conjunction with the first sliding portion, allowing the bottom skid to slide relative to the base frame along the first direction. On one hand, by providing the first and second sliding portions, the relative position between the bottom skid and the base frame can be adjusted. Therefore, during tower installation, the position of the tower along the first direction can be adjusted simply by pushing the bottom skid relative to the base frame, without needing to move the entire tower, thus facilitating tower installation at the wellhead. On the other hand, at least a portion of the sliding connection between the bottom skid and the base frame is located on the bottom side of the lower crossbeam. This avoids the problem of needing to increase the size of the base frame along the first direction to meet the sliding requirement of the bottom skid relative to the base frame when the sliding connection between the bottom skid and the base frame is misaligned with the lower crossbeam along the first direction. Therefore, the tower of this application facilitates tower position adjustment, improving installation convenience, while also minimizing the size and weight of the base frame. Attached Figure Description

[0023] Figure 1 This is a schematic diagram of a tower structure according to an embodiment of this application, in which the tower is in a retracted state;

[0024] Figure 2 for Figure 1 A schematic diagram of the central tower in its deployed state;

[0025] Figure 3 for Figure 2 A magnified view of a section at point A in the middle;

[0026] Figure 4 for Figure 2 A structural schematic diagram of the central tower from another perspective;

[0027] Figure 5 for Figure 4 A magnified view of a section at point B in the middle;

[0028] Figure 6 for Figure 4 Schematic diagram of the middle and lower level skids.

[0029] Reference Signs List

[0030] 10, bottom frame; 11, first sliding part; 12, slide rail; 20, bottom pry frame; 21, middle pry frame; 21a, reinforcing space; 211, frame body; 212, vertical beam; 213, lower cross beam; 214, inclined support rod; 215, first reinforcing rod; 216, second reinforcing rod; 217, connecting piece; 22, moving platform; 221, second sliding part; 23, top pry frame; 30, pin shaft. DETAILED DESCRIPTION

[0031] In the present application, the "first direction", "second direction" and "height direction" are the orientation or positional relationship based on the drawings of the present application. Figure 1 It should be understood that these orientation terms are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation on the present application.

[0032] An embodiment of the present application provides a tower, please refer to Figure 1 The tower comprises a bottom frame 10, a moving platform 22 and a bottom pry frame 20.

[0033] The top of the bottom frame 10 has a first sliding part 11 extending in the first direction.

[0034] Please refer to Figures 4 to 6 The bottom pry frame 20 is arranged on the top side of the bottom frame 10, and the bottom pry frame 21 comprises two frame bodies 211 and two lower cross beams 213. The two frame bodies 211 are arranged in the first direction. The opposite ends of the lower cross beam 213 are respectively connected to the bottom of the two frame bodies 211, and the two lower cross beams 213 are respectively located on the opposite sides of the frame body 211 in the second direction. The first direction and the second direction are perpendicular.

[0035] The moving platform 22 is arranged between the bottom pry frame 20 and the bottom frame 10, and the moving platform 22 has a second sliding part 221.

[0036] In the projection plane parallel to the bottom surface of the lower cross beam 213, the projection of at least part of the second sliding part 221 is located within the projection range of the lower cross beam 213, and the second sliding part 221 is in sliding cooperation with the first sliding part 11, so that the bottom pry frame 20 can slide relative to the bottom frame 10 in the first direction.

[0037] Specifically, the tower of the present application can be any type of tower. In order to facilitate the description, the present application takes the tower used for cooperation with the pipe string as an example for description.

[0038] The bottom frame 10 is a frame structure located on the bottom side of the bottom pry frame 20.

[0039] The bottom layer pry frame 20 is located on the top side of the bottom frame 10. It should be noted that the tower can only include one pry frame, i.e., only the bottom layer pry frame 20, and the bottom layer pry frame 20 has a working platform. According to different actual conditions, the tower can further include other pry frames arranged along the height direction on the top side of the bottom layer pry frame 20, and the working platform is located on the topmost pry frame.

[0040] For example, the tower further includes a top layer pry frame 23 and an intermediate pry frame 21. The top layer pry frame 23 is arranged on the top side of the bottom layer pry frame 20 and is the topmost pry frame of the tower, and has a working platform. The intermediate pry frame 21 is located between the top layer pry frame 23 and the bottom layer pry frame 20.

[0041] Among them, please refer to Figure 1 and Figure 2 , the top layer pry frame 23 and the intermediate pry frame 21 can slide relative to each other along the height direction, and the tower can be stacked and unfolded. Moreover, by adjusting the relative displacement of the bottom layer pry frame 20, the top layer pry frame 23 and the intermediate pry frame 21 can be driven to move synchronously.

[0042] It should be noted that the tower in the related art moves the working platform of the top layer pry frame by relative sliding between the top layer pry frame and the adjacent intermediate pry frame along the horizontal direction, which needs to arrange the sliding structure on the top of the tower, and has the problem of unstable center of gravity of the tower.

[0043] The bottom layer pry frame 20 of the tower of the embodiment and the bottom frame 10 can slide relative to each other, so as to drive the working platform on the top of the tower to move. The first sliding part 11 and the second sliding part 221 are both located below the bottom layer pry frame 20, so as to make the center of gravity of the tower move downward, which can greatly improve the safety problem of the tower during operation.

[0044] The bottom layer pry frame 21 is a frame structure, which includes two frame bodies 211 arranged at intervals along a first direction, and a lower cross beam 213 arranged at intervals along a second direction. The lower cross beam 213 extends along the first direction, and the opposite ends thereof are connected with the bottom ends of the two frame bodies 211, respectively.

[0045] It should be noted that in some embodiments, the bottom layer pry frame 21 further includes two upper cross beams, which are located on the top side of the lower cross beam 213 along the height direction and correspond to the lower cross beam 213 one by one. That is, the opposite ends of the upper cross beam are connected with the top ends of the two frame bodies 211, respectively, so as to form a frame structure.

[0046] It can be understood that the first direction and the second direction are mutually perpendicular directions in a horizontal plane.

[0047] The first sliding part 11 is located at the top region of the base frame 10 and extends along the first direction, thereby allowing the bottom pry frame 20 to slide.

[0048] The second sliding part 221 is configured to slide with the first sliding part 11, thereby allowing the bottom pry frame 21 to slide relative to the base frame 10 by sliding the second sliding part 221 relative to the first sliding part 11, and further allowing the bottom pry frame 20 to move relative to the base frame 10 along the first direction.

[0049] The first sliding part 11 and the second sliding part 221 are in sliding connection, and the specific sliding connection manner is not limited.

[0050] For example, referring to Figure 5 , one of the first sliding part 11 and the second sliding part 221 has a sliding groove, and the other has a sliding rail 12 in sliding connection with the sliding groove.

[0051] Specifically, the first sliding part 11 can have the sliding groove, and the second sliding part 221 can have the sliding rail 12, or the second sliding part 221 can have the sliding groove, and the first sliding part 11 can have the sliding rail 12. By sliding connection between the sliding groove and the sliding rail 12, the movement between the bottom pry frame 20 and the base frame 10 can be better achieved.

[0052] It should be noted that at least part of the second sliding part 221 is projected within the projection range of the lower cross beam 213. The projection of the entire second sliding part 221 can be within the projection range of the lower cross beam 213, or the projection of part of the second sliding part 221 can be within the projection range of the lower cross beam 213, and the projection of the other part of the second sliding part 221 can extend beyond the length of the lower cross beam 213 along the first direction, such as the second sliding part 221 extending to the bottom side of the frame body 211 along the first direction.

[0053] That is, at least part of the sliding connection position between the bottom pry frame 20 and the base frame 10 should be within the coverage range of the lower cross beam 213, so as to be able to retract the sliding connection position to the bottom side of the lower cross beam 213, thereby avoiding increasing the size of the base frame 10.

[0054] In the related art, the sliding connection position between the bottom pry frame and the base frame is located at the bottom end of the frame body, and thus in order to meet the requirement of moving the bottom pry frame along the first direction, the size of the base frame along the first direction needs to be increased, so that the base frame exceeds the length of the bottom pry frame along the first direction, thereby causing the length of the base frame along the first direction to be too large, and increasing the weight and cost of the base frame.

[0055] The tower of the embodiment of the present application can adjust the relative position between the bottom layer pry frame 20 and the base frame 10 by setting the first sliding part 11 and the second sliding part 221. Thus, during the installation of the tower, the position adjustment of the tower along the first direction can be realized by only pushing the bottom layer pry frame 20 to slide relative to the base frame 10, without moving the tower as a whole, so that the installation of the tower at the wellhead can be facilitated. On the other hand, at least part of the sliding connection between the bottom layer pry frame 20 and the base frame 10 is arranged at the bottom side of the lower cross beam 213, so that the problem that the size of the base frame 10 along the first direction needs to be increased to meet the requirement of the sliding of the bottom layer pry frame 20 relative to the base frame 10 can be avoided in the case that the sliding connection between the bottom layer pry frame 20 and the base frame 10 is staggered along the first direction from the lower cross beam 213. Thus, the tower of the present application can facilitate the position adjustment of the tower to improve the installation convenience of the tower, and can also reduce the size of the base frame 10 as much as possible to reduce the weight of the base frame 10.

[0056] In an embodiment, referring to Figure 3 and Figure 5 , the bottom layer pry frame 21 comprises a connecting piece 217 fixed on the bottom surface of the lower cross beam 213 and fixedly connected with the second sliding part 221, so that the bottom layer pry frame 21 slides along the first direction relative to the base frame 10 through the moving platform 22. Thus, the sliding of the bottom layer pry frame 20 relative to the base frame 10 can be realized while the installation stability of the bottom layer pry frame 20 is improved.

[0057] Specifically, the bottom layer pry frame 21 is fixed on the moving platform 22 through the connecting piece 217 and slides relative to the base frame 10 through the moving platform 22, so that the displacement of the moving platform 22 along the first direction can be realized.

[0058] It should be noted that the connecting piece 217 is fixed on the bottom surface of the lower cross beam 213, so that the connection between the bottom layer pry frame 21 and the moving platform 22 can be retracted to the bottom side of the lower cross beam 213, which can avoid the problem that the moving platform 22 needs to be widened along the first direction to meet the connection requirement of the bottom layer pry frame 21 and the moving platform 22 when the connecting piece 217 is directly fixed on the bottom surface of the frame body 211. That is, by fixing the connecting piece 217 on the bottom surface of the lower cross beam 213, the size of the moving platform 22 along the first direction can be reduced as much as possible. On the other hand, since the second sliding part 221 is also located at the bottom side of the lower cross beam 213, by fixing the connecting piece 217 on the bottom surface of the lower cross beam 213, the connecting piece 217 can better transmit the bearing force to the moving platform 22 and then to the base frame 10.

[0059] The specific setting position of the connecting piece 217 can be set according to the actual situation.

[0060] Exemplarily, referring toFigure 5 The connecting piece 217 is located on the top side of the second sliding part 221 and is coaxially arranged with the second sliding part 221 along the height direction. That is, the connecting piece 217 is fixedly connected with the top surface of the second sliding part 221, and the central axis of the connecting piece 217 coincides with the central axis of the second sliding part 221, so that the connecting piece 217 can better transmit the force borne by the bottom layer jack 20 to the base frame 10 through the second sliding part 221 of the moving platform 22, and the structure is more stable.

[0061] Of course, in other embodiments, the connecting piece 217 and the second sliding part 221 can also be misaligned.

[0062] In an embodiment, the bottom layer jack 20 has an initial state located at the first position of the base frame 10, a first displacement state located at the second position of the base frame 10, and a second displacement state located at the third position of the base frame 10; wherein the second position and the third position are respectively located on the opposite sides of the first position along the first direction. In this way, the bottom layer jack 20 can move on both sides along the first direction, which can greatly improve the adjustment ability of the tower.

[0063] Specifically, the first position, the second position and the third position are all relative to the base frame 10. That is, the first position is the position of the connecting part between the bottom layer jack 20 and the base frame 10 when the bottom layer jack 20 is in the initial state. The second position is the position of the connecting part between the bottom layer jack 20 and the base frame 10 when the bottom layer jack 20 is in the first displacement state. The first position is the position of the connecting part between the bottom layer jack 20 and the base frame 10 when the bottom layer jack 20 is in the second displacement state.

[0064] For the first position, the second position and the third position, the second position and the third position are respectively located on the opposite sides of the first position along the first direction, that is, for the movement process of the bottom layer jack 20 from the first position to the second position and the movement process of the bottom layer jack 20 from the first position to the third position, the movement direction of the bottom layer jack 20 in the two movement processes is opposite.

[0065] The specific positions of the second position and the third position can be set according to actual conditions.

[0066] For example, the second position is the position of the bottom layer jack when the second sliding part is located at the end of the first sliding part on one side along the first direction.

[0067] For another example, the third position is the position of the bottom layer jack when the second sliding part is located at the end of the first sliding part on the other side along the first direction.

[0068] It should be noted that the interval distance between the first position, the second position and the third position can be set according to actual conditions.

[0069] For example, the distance between the first position and the second position is greater than or equal to 50 mm and less than or equal to 400 mm. For example, 50 mm, 100 mm, 200 mm, 300 mm and 400 mm. Controlling the distance between the first position and the second position in the above range can avoid the problem that the sliding stroke of the bottom pry frame 20 in the first direction is too short, resulting in poor displacement adjustment capability of the tower. At the same time, it can also avoid the problem that the distance between the first position and the second position is too large, resulting in the size of the bottom frame 10 in the first direction being too large.

[0070] For example, the distance between the first position and the third position is greater than or equal to 50 mm and less than or equal to 400 mm. For example, 50 mm, 100 mm, 200 mm, 300 mm and 400 mm. Controlling the distance between the first position and the third position in the above range can avoid the problem that the sliding stroke of the bottom pry frame 20 in the first direction is too short, resulting in poor displacement adjustment capability of the tower. At the same time, it can also avoid the problem that the distance between the first position and the third position is too large, resulting in the size of the bottom frame 10 in the first direction being too large.

[0071] In an embodiment, referring to Figure 5 and Figure 6 , the bottom pry frame 21 further comprises a diagonal brace 214, the frame body 211 comprises vertical beams 212 extending in the height direction, the opposite ends of the lower cross beam 213 are respectively connected to the bottom ends of the two vertical beams 212, and the opposite ends of the diagonal brace 214 are respectively connected to the adjacent vertical beam 212 and the lower cross beam 213 to be inclined relative to the vertical beam 212 and the lower cross beam 213. Thus, the connection stability between the vertical beam 212 and the lower cross beam 213 can be improved, and the structural strength of the bottom pry frame 21 can be improved.

[0072] Specifically, the vertical beam 212 is a vertical side beam on the opposite sides of the frame body 211 in the second direction, and the opposite ends of the lower cross beam 213 are connected to the bottom ends of the vertical beams 212 of the frame body 211 on the same side in the second direction. The lower cross beam 213 is perpendicular to the vertical beam 212, and the opposite ends of the diagonal brace 214 are respectively connected to the adjacent vertical beam 212 and the lower cross beam 213, so that the diagonal brace 214 is inclined relative to the vertical beam 212 and the lower cross beam 213, and the three form a triangular space.

[0073] In an embodiment, referring to Figure 5 and Figure 6 , the diagonal brace 214 and the connected vertical beam 212 and lower cross beam 213 form a reinforcing space 21a, and the bottom pry frame 21 further comprises a first reinforcing rod 215 located in the reinforcing space 21a, and the opposite ends of the first reinforcing rod 215 are respectively connected to the diagonal brace 214 and the lower cross beam 213.

[0074] Specifically, the first reinforcing rod 215 is arranged in the reinforcing space 21a formed by the diagonal bracing rod 214, the vertical beam 212 and the lower cross beam 213, and is connected to the diagonal bracing rod 214 and the lower cross beam 213, so that the connection stability between the diagonal bracing rod 214 and the lower cross beam 213 is further improved, and the structural strength of the bottom layer pry frame 21 is further improved.

[0075] In an embodiment, as shown in Figure 5 and Figure 6 , the diagonal bracing rod 214, the vertical beam 212 and the lower cross beam 213 form a reinforcing space 21a, and the bottom layer pry frame 21 further comprises a second reinforcing rod 216 located in the reinforcing space 21a, and the opposite ends of the second reinforcing rod 216 are connected to the diagonal bracing rod 214 and the vertical beam 212, respectively.

[0076] Specifically, the second reinforcing rod 216 is arranged in the reinforcing space 21a formed by the diagonal bracing rod 214, the vertical beam 212 and the lower cross beam 213, and is connected to the diagonal bracing rod 214 and the vertical beam 212, so that the connection stability between the diagonal bracing rod 214 and the vertical beam 212 is further improved, and the structural strength of the bottom layer pry frame 21 is further improved.

[0077] In an embodiment, as shown in Figure 5 and Figure 6 , the diagonal bracing rod 214, the vertical beam 212 and the lower cross beam 213 form a reinforcing space 21a, and the bottom layer pry frame 21 further comprises a first reinforcing rod 215 located in the reinforcing space 21a, one end of the first reinforcing rod 215 is connected to the lower cross beam 213, and the connection position is located at the corresponding position of the side of the lower cross beam 213 away from the connecting piece 217, and the other end of the first reinforcing rod 215 is connected to the diagonal bracing rod 214. Therefore, the bottom layer pry frame 21 can conveniently transmit the load borne by the tower to the base frame 10 through the connecting piece 217, and the strength and rigidity of the tower can be improved.

[0078] Specifically, the connecting piece 217 is installed at the bottom side of the lower cross beam 213, and the one end of the first reinforcing rod 215 connected to the lower cross beam 213 and the connecting piece 217 are located at opposite sides of the lower cross beam 213, that is, the first reinforcing rod 215 and the connecting piece 217 are connected at different sides of the same section of the lower cross beam 213, so that the first reinforcing rod 215 can conveniently transmit the bearing capacity to the connecting piece 217, and then to the base frame 10 through the mobile platform 22.

[0079] In an embodiment, as shown in Figure 5 and Figure 6The end of the lower cross beam 213 is connected with the bottom end of the frame body 211 through the pin shaft 30. The connecting piece 217 is an angle piece fixed on the bottom of the lower cross beam 213. The end face of the end of the lower cross beam 213 and the adjacent angle piece are respectively located on the opposite sides of the pin shaft 30, so that the angle piece avoids the adjacent pin shaft 30. In this way, the load borne by the bottom pry frame 21 can be transmitted to the angle piece in a manner similar to the force transmission of a cantilever beam, and then transmitted to the bottom frame 10.

[0080] Specifically, at the connection position of the lower cross beam 213 and the frame body 211, the lower cross beam 213 has a first pin shaft hole, and the frame body 211 has a second pin shaft hole. The first pin shaft hole and the second pin shaft hole are in communication and connected through the pin shaft 30.

[0081] In fact, at the same end of the lower cross beam 213, the mounting position of the angle piece on the lower cross beam 213 is located on the side away from the end face of the first pin shaft hole, that is, the mounting position of the angle piece on the lower cross beam 213 and the end face of the lower cross beam 213 are respectively located on the opposite sides of the first pin shaft hole. In this way, the load borne by the frame body 211 can be transmitted to the angle piece in a manner similar to the force transmission of a cantilever beam, and then transmitted to the bottom frame 10.

[0082] It should be noted that the connection between the bottom pry frame 20 and the moving platform 22 through the angle piece can greatly improve the connection stability of the two, and also facilitate the disassembly of the two.

[0083] In an embodiment, the bottom pry frame 21 further comprises a reinforcing rib. At the connection position of the angle piece and the lower cross beam 213, reinforcing ribs are arranged on the side faces of the lower cross beam 213 on both sides, so as to strengthen the structural strength of the connection between the angle piece and the lower cross beam 213.

[0084] In an embodiment, the moving platform 22 comprises a plurality of second sliding parts 221 arranged at intervals in the first direction, and the bottom pry frame 21 comprises a plurality of connecting pieces 217 corresponding to the second sliding parts 221 one by one.

[0085] In an embodiment, referring to Figure 1 and Figure 2 , the tower further comprises a plurality of intermediate pry frames 21 arranged in the height direction, and a top pry frame 23 located on the top side of the intermediate pry frames 21. The intermediate pry frames 21 are arranged on the top side of the bottom pry frame 20 in a liftable manner, and the top pry frame 23 is arranged on the top side of the intermediate pry frames 21 in a liftable manner. The pry frames arranged adjacent in the height direction can slide relative to each other in the height direction. The intermediate pry frame 21 located at the bottom end can also slide relative to the bottom pry frame 20 in the height direction. In this way, after each pry frame is moved downward, the top pry frame 23 and each intermediate pry frame 21 can be stacked with the bottom pry frame 20, so that the tower is in a collapsed state. After the top pry frame 23 and each intermediate pry frame 21 are moved upward, the tower is in an expanded state.

[0086] In the description of the application, the description of the terms "in an embodiment", "in some embodiments", "in a specific embodiment", or "exemplary" and the like means that the specific feature, structure, material or characteristic being described is included in at least one embodiment or example of the application. The illustrative appearance of the above-mentioned terms in various places in the specification is not necessarily intended to refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics can be combined in any suitable manner in one or more embodiments or examples. Furthermore, the different embodiments or examples described in the application and the features of the different embodiments or examples can be combined with each other, if not mutually exclusive.

[0087] The above only is the preferred embodiment of the application, and is not used to limit the application. For those skilled in the art, the application can have various changes and changes. Any modification, equivalent replacement, improvement, etc. within the spirit and principle of the application is included in the protection scope of the application.

Claims

1. A tower characterized in that, The utility model relates to a bottom frame, the top of the bottom frame has the first sliding part along the first direction extension; The bottom pry frame is arranged on the top side of the bottom frame, and the bottom pry frame comprises two frame bodies and two lower cross beams, the two frame bodies are arranged at intervals along the first direction, the opposite ends of the lower cross beams are connected with the bottoms of the two frame bodies correspondingly, and the two lower cross beams are located on the opposite sides of the frame bodies along the second direction respectively; Wherein, the first direction and the second direction are perpendicular; The moving platform is arranged between the bottom pry frame and the bottom frame, the moving platform has the second sliding part, and the projection of at least partial area of the second sliding part is located in the projection range of the lower cross beam in the projection plane parallel to the bottom surface of the lower cross beam, the second sliding part is slidably connected with the first sliding part, so that the bottom pry frame can slide relative to the bottom frame along the first direction. The bottom pry frame comprises a connecting piece fixed to the bottom surface of the lower cross beam and fixedly connected with the second sliding part, so that the bottom pry frame slides relative to the bottom frame along the first direction through the moving platform.

2. Tower according to claim 1, characterized in that One of the first sliding part and the second sliding part has a sliding groove, and the other has a sliding rail slidably connected with the sliding groove.

3. Tower according to claim 1, characterized in that The connecting piece is located on the top side of the second sliding part and is coaxially arranged with the second sliding part along the height direction.

4. Tower according to claim 2, characterized in that The bottom pry frame has an initial state located at the first position of the bottom frame, a first displacement state located at the second position of the bottom frame, and a second displacement state located at the third position of the bottom frame; Wherein, the second position and the third position are located on the opposite sides of the first position along the first direction respectively.

5. Tower according to any of claims 1-4, characterized in that The distance between the first position and the second position is greater than or equal to 50mm and less than or equal to 400mm; And / or, 6. Tower according to claim 5, characterized in that The distance between the first position and the third position is greater than or equal to 50mm and less than or equal to 400mm. The bottom pry frame further comprises a diagonal brace, the frame body comprises a vertical beam extending along the height direction, the opposite ends of the lower cross beam are connected with the bottom ends of the two vertical beams correspondingly, and the opposite ends of the diagonal brace are connected with the adjacent vertical beam and the lower cross beam respectively, so as to be inclined relative to the vertical beam and the lower cross beam.

7. Tower according to claim 2 or 4, characterized in that The diagonal brace, the vertical beam and the lower cross beam connected with the diagonal brace form a reinforcing space; 8. Tower according to claim 7, characterized in that The bottom pry frame further comprises a first reinforcing rod located in the reinforcing space, and the opposite ends of the first reinforcing rod are connected with the diagonal brace and the lower cross beam respectively; And / or, The bottom pry frame further comprises a second reinforcing rod located in the reinforcing space, and the opposite ends of the second reinforcing rod are connected with the diagonal brace and the vertical beam respectively. The diagonal brace, the vertical beam and the lower cross beam connected with the diagonal brace form a reinforcing space, the bottom pry frame further comprises a first reinforcing rod located in the reinforcing space, one end of the first reinforcing rod is connected with the lower cross beam, and the connection is located at the corresponding position of the side of the lower cross beam away from the connecting piece, and the other end of the first reinforcing rod is connected with the diagonal brace.

9. Tower according to claim 7, characterized in that ​ 10. Tower according to claim 2 or 4, characterized in that The end of the lower crossbeam is connected with the bottom end of the frame body through a pin shaft, the connecting piece is a corner piece fixed at the bottom of the lower crossbeam, and the end face of the end of the lower crossbeam and the adjacent corner piece are located at opposite sides of the pin shaft respectively, so that the corner piece avoids the adjacent pin shaft.

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