Connecting structure for wind power prefabricated concrete tower drum

Abstract

The utility model relates to the technical field of wind power equipment, in particular to a connecting structure for a wind power prefabricated concrete tower drum, which comprises a first supporting tower drum and a second supporting tower drum. The connecting structure comprises a first supporting tower drum and a second supporting tower drum, a positioning installation mechanism is connected between the first supporting tower drum and the second supporting tower drum, and a closed protection mechanism is arranged on the side edge of the positioning installation mechanism. Once the positioning bolt is not screwed to the bottom end of the first threaded hole or is screwed in a staggered mode, the limiting clamping plate cannot be installed in the device under the abutting action of the protruding part of the positioning bolt, so that whether the positioning bolt is screwed or not is preliminarily monitored and judged, and workers can conveniently and safely complete installation work of the whole device; the overall practical effect is good.

Description

Technical Field

[0001] The utility model relates to the technical field of wind power equipment, in particular to a connection structure for a prefabricated concrete tower of a wind power plant. Background Art

[0002] Precast concrete wind power tower is a precast concrete component used to build a wind turbine tower. The wind turbine tower is a structure that supports the wind turbine generator set, and the tower is one of its main components. Precast concrete towers are usually prefabricated in factories and then transported to wind farms for assembly. This production method helps to improve construction efficiency and reduce construction costs, while ensuring the quality and stability of the tower. Precast concrete wind power towers are widely used in the wind power industry.

[0003] The existing prefabricated concrete towers for wind power are usually installed and docked with fastening bolts. However, after the installation is completed, the staff cannot visually determine whether the fastening bolts are installed tightly. Once the installation is loose, it will directly leave a safety hazard. However, the existing devices have not made improvements to this problem, and the overall practical effect is poor. Utility Model Content

[0004] The utility model aims to solve the above-mentioned problem and proposes a connection structure for precast concrete wind power towers, which improves the existing precast concrete wind power towers, which are usually installed and docked with fastening bolts. However, after the installation is completed, the staff cannot visually distinguish whether the fastening bolts are installed tightly. Once the installation is loose, it will directly leave a safety hazard.

[0005] A connection structure for a precast concrete tower for wind power generation, comprising a first supporting tower and a second supporting tower: a second supporting tower is arranged below the first supporting tower, and reinforcement support mechanisms are arranged inside the first supporting tower and the second supporting tower, a positioning and installation mechanism is connected between the first supporting tower and the second supporting tower, a closed protection mechanism is arranged on the side of the positioning and installation mechanism, the reinforcement support mechanism comprises a first supporting steel bar and a second supporting steel bar, the first supporting steel bars are embedded and installed at equal intervals inside the first supporting tower and the second supporting tower, and second supporting steel bars are arranged at equal intervals on the side of the first supporting steel bar.

[0006] Preferably, the first supporting steel bars are arranged in a transverse arrangement, the second supporting steel bars are arranged in a longitudinal arrangement, and the side outer walls of the first supporting steel bars are connected to the side outer walls of the second supporting steel bars.

[0007] Preferably, the positioning and mounting mechanism includes a positioning T-shaped bar, a first threaded hole and a positioning T-shaped slot. The bottom outer wall of the first supporting tower is provided with positioning T-shaped bars at equal intervals, and the side outer wall of the positioning T-shaped bar is provided with a first threaded hole. The top outer wall of the second supporting tower is provided with positioning T-shaped slots at equal intervals, and the positioning T-shaped bar and the positioning T-shaped slot are installed in a snap-fit ​​manner.

[0008] Preferably, a placement groove is provided on the side outer wall of the second support tower located at the first threaded hole, and a second threaded hole is provided on the side outer wall of the second support tower located at the placement groove, and the second threaded hole is connected to the positioning T-shaped slot.

[0009] Preferably, the opening diameter of the first threaded hole is equal to the opening diameter of the second threaded hole, and the first threaded hole and the second threaded hole are threadedly mounted with the positioning bolt, and the rotating portion of the positioning bolt is located inside the placement groove.

[0010] Preferably, the side outer walls of the positioning T-shaped strip are both configured as arc-shaped structures, and the side inner walls of the positioning T-shaped groove are both configured as arc-shaped structures.

[0011] Preferably, the closed protection mechanism includes a limiting slot, a resistance slot, a limiting card plate and a resistance card plate, the second support tower is provided with a limiting slot on the side outer wall of the placement slot, the second support tower is provided with resistance slots on both sides of the limiting slot, and the resistance slot is arranged inside the second support tower, a limiting card plate is arranged inside the limiting slot, and resistance card plates are symmetrically arranged on the outer walls on both sides of the limiting card plate, and the resistance card plate and the resistance slot are snap-fitted.

[0012] Preferably, a support groove is provided on the side outer wall of the limiting clamping plate, and a resistance spring is provided on the bottom inner wall of the support groove, and the resistance spring is in contact with the side outer wall of the positioning bolt.

[0013] The beneficial effects of the utility model are:

[0014] 1. When the connection structure for wind power precast concrete tower is in use, the threaded connection relationship between the positioning bolt and the threaded groove on the outer wall of the positioning T-shaped bar can realize the locking installation of the positioning T-shaped bar and the docking tower. In addition, the design of installing a limiting card plate on the outside of the docking tower is further coordinated. Once the positioning bolt is not screwed to the bottom end of the first threaded hole or is misaligned and tightened, the limiting card plate cannot be installed into the device due to the resistance of the protruding part of the positioning bolt. In this way, a preliminary monitoring and judgment is achieved on whether the positioning bolt is tightened, which is convenient for the staff to safely complete the installation of the entire device. In combination with the shielding and protection effect of the limiting card plate on the positioning bolt, it realizes the effect of closed rainproof, is not easy to rust and damage to affect the installation stability of the device, and has a good overall practical effect.

[0015] 2. When the connection structure for wind power precast concrete tower is in use, the docking installation between two towers can be quickly realized through the snap-fitting relationship between the positioning T-shaped strip and the positioning T-shaped groove. At the same time, the snap-fitting parts are set to a T-shaped structure, and only one set of the snap-fitting parts needs to be selected for docking to complete the installation of the entire group. The design of arranging the first supporting steel bars and the second supporting steel bars in a horizontal and vertical arrangement inside the tower further strengthens the structural connectivity of the tower, further strengthens the stable supporting effect of the device, and has a good overall practical effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic diagram of the overall three-dimensional structure of the utility model;

[0017] Figure 2 It is a schematic diagram of the three-dimensional structure of the reinforcement support mechanism of the utility model;

[0018] Figure 3 It is a three-dimensional structural diagram of the positioning and installation mechanism of the utility model;

[0019] Figure 4 For the utility model Figure 3 A in the middle is an enlarged schematic diagram of the three-dimensional structure;

[0020] Figure 5 It is a three-dimensional structural diagram of the closed protection mechanism of the utility model;

[0021] Figure 6 For the utility model Figure 5 The enlarged schematic diagram of the three-dimensional structure is shown at B in the middle.

[0022] In the figure: 1. first supporting tower; 2. second supporting tower; 3. reinforcing supporting mechanism; 31. first supporting steel bar; 32. second supporting steel bar; 4. positioning and installing mechanism; 41. positioning T-shaped bar; 42. first threaded hole; 43. positioning T-shaped slot; 44. placement slot; 45. second threaded hole; 46. positioning bolt; 5. closing and protecting mechanism; 51. limiting slot; 52. interference slot; 53. limiting card plate; 54. interference card plate; 55. supporting slot; 56. interference spring. DETAILED DESCRIPTION

[0023] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0024] When implementing: Figure 1-6 As shown, a connection structure for a precast concrete tower for wind power generation includes a first supporting tower 1 and a second supporting tower 2: the second supporting tower 2 is arranged below the first supporting tower 1, and a reinforcing support mechanism 3 is arranged inside the first supporting tower 1 and the second supporting tower 2, a positioning and installation mechanism 4 is connected between the first supporting tower 1 and the second supporting tower 2, and a closed protection mechanism 5 is arranged on the side of the positioning and installation mechanism 4, and the reinforcing support mechanism 3 includes a first supporting steel bar 31 and a second supporting steel bar 32, and the first supporting steel bar 31 is embedded and installed at equal intervals inside the first supporting tower 1 and the second supporting tower 2, and the second supporting steel bar 32 is arranged at equal intervals on the side of the first supporting steel bar 31; here, the first supporting steel bar 31 and the second supporting steel bar 32 are both embedded inside the tower when the tower is manufactured, and the structural connectivity of the tower is strengthened by the first supporting steel bar 31 and the second supporting steel bar 32, so as to achieve the effect of supporting prestress.

[0025] The first supporting steel bars 31 are arranged horizontally, the second supporting steel bars 32 are arranged vertically, and the side outer wall of the first supporting steel bars 31 is connected to the side outer wall of the second supporting steel bars 32; here, the first supporting steel bars 31 and the second supporting steel bars 32 are arranged horizontally and vertically to achieve a better effect of supporting prestressing.

[0026] The positioning and installation mechanism 4 includes a positioning T-shaped bar 41, a first threaded hole 42 and a positioning T-shaped slot 43. The bottom outer wall of the first supporting tower 1 is surrounded by a positioning T-shaped bar 41 at equal intervals, and the side outer wall of the positioning T-shaped bar 41 is provided with a first threaded hole 42. The top outer wall of the second supporting tower 2 is surrounded by a positioning T-shaped slot 43 at equal intervals. The positioning T-shaped bar 41 and the positioning T-shaped slot 43 are clamped together. The side outer wall of the second supporting tower 2 located at the first threaded hole 42 is provided with a placement groove 44, and the side outer wall of the second supporting tower 2 located at the placement groove 44 is provided with a second threaded hole 45. The second threaded hole 45 is connected to the positioning T-shaped slot 43, the opening diameter of the first threaded hole 42 is equal to the opening diameter of the second threaded hole 45, and there is a threaded installation between the first threaded hole 42, the second threaded hole 45 and the positioning bolt 46. The rotating part of the positioning bolt 46 is located inside the placement groove 44, the side outer walls of the positioning T-shaped bar 41 are all set to an arc structure, and the side inner walls of the positioning T-shaped slot 43 are set to an arc structure; when the first supporting tower 1 and the second supporting tower 2 need to be installed together, at this time, it is necessary to first adjust the positioning T-shaped bar 41 at the bottom end of the first supporting tower 1 to a suitable position and then insert it into the positioning T-shaped slot 43 inside the second supporting tower 2. At this point, the preliminary docking of the first supporting tower 1 and the second supporting tower 2 is completed. When the positioning T-shaped bar 41 moves to the bottom end of the positioning T-shaped slot 43, the first threaded hole 42 and the second threaded hole 45 coincide with each other. Then, the positioning bolt 46 is screwed into the first threaded hole 42 through the placement groove 44 and the second threaded hole 45 to complete the locking installation of the first supporting tower 1 and the second supporting tower 2.

[0027] The closed protection mechanism 5 includes a limit slot 51, a resistance slot 52, a limit card plate 53 and a resistance card plate 54. The second supporting tower 2 is provided with a limit slot 51 on the side outer wall of the placement slot 44, and the second supporting tower 2 is provided with resistance slots 52 on both sides of the limit slot 51, and the resistance slots 52 are arranged inside the second supporting tower 2, and a limit card plate 53 is arranged inside the limit slot 51, and resistance card plates 54 are symmetrically arranged on the outer walls on both sides of the limit card plate 53, and the resistance card plate 54 and the resistance slot 52 are engaged with each other, and a supporting slot 55 is provided on the side outer wall of the limiting card plate 53, and a resistance spring 56 is provided on the inner wall of the bottom end of the supporting slot 55, and the resistance spring 56 is in contact with the side outer wall of the positioning bolt 46; when the above-mentioned first supporting tower 1 and the second supporting tower 2 are locked and installed, it is necessary to pick up the limit card plate 53 and put it first The tilting makes the interference card plate 54 at one end of it be stuck into the inside of the interference card slot 52, and then the interference spring 56 is adjusted to interfere with the installed positioning bolt 46. The setting of the support groove 55 here plays a role of limiting support for the interference spring 56, and then the interference card plate 54 at the other end of the limiting card plate 53 is stuck into the inside of the interference card slot 52 on the other side, so that the limiting card plate 53 is completely located inside the limiting card slot 51. It is noted here that the limiting card plate 53 is set to be a hard material with elastic deformation effect, that is, a material that can undergo a certain degree of deformation under the action of force, but can return to its original shape after the external force is removed. This material usually has a certain elastic modulus and elastic limit, and can deform within a certain range without destroying its structure. Then, using this characteristic, the limiting card plate 53 can be installed in the limiting card slot 51 through deformation support to achieve the effect of portable installation.

[0028] When the utility model is in use, it is noted here that the first supporting tower 1 and the second supporting tower 2 are actually of the same structure, and are marked as two separate individuals for the convenience of subsequent detailed explanation of the mechanism. Here, the first supporting steel bar 31 and the second supporting steel bar 32 are both embedded in the tower when the tower is manufactured. The structural connectivity of the tower is strengthened by the first supporting steel bar 31 and the second supporting steel bar 32, thereby achieving the effect of supporting prestress; when the first supporting tower 1 and the second supporting tower 2 need to be installed together, at this time, it is first necessary to adjust the positioning T-shaped bar 41 at the bottom end of the first supporting tower 1 to a suitable position and then insert it into the positioning T-shaped slot 43 inside the second supporting tower 2, so that the preliminary docking of the first supporting tower 1 and the second supporting tower 2 is completed, and when the positioning T-shaped bar 41 moves to the bottom end of the positioning T-shaped slot 43, the first threaded hole 42 and the second threaded hole 45 coincide with each other, and then the positioning bolt 46 is screwed into the first threaded hole 42 through the placement slot 44 through the second threaded hole 45 to complete the first supporting tower 1 and the second supporting tower. The locking installation of the second support tower 2; when the locking installation of the first support tower 1 and the second support tower 2 is completed, it is necessary to pick up the limit clamping plate 53 and tilt it first so that the contact clamping plate 54 at one end thereof is clamped into the inside of the contact clamping groove 52, and then adjust the contact spring 56 to be in conflict with the installed positioning bolt 46. The setting of the support groove 55 here has the effect of limiting support for the contact spring 56, and then the contact clamping plate 54 at the other end of the limit clamping plate 53 is clamped into the inside of the contact clamping groove 52 on the other side, and then The limiting card plate 53 is completely located inside the limiting card slot 51. It is noted here that the limiting card plate 53 is configured to be a hard material with an elastic deformation effect, that is, a material that can deform to a certain extent under the action of force, but can return to its original state after the external force is removed. This material usually has a certain elastic modulus and elastic limit, and can deform within a certain range without destroying its structure. This characteristic is used to enable the limiting card plate 53 to achieve a portable installation effect through deformation reinforcement when installed in the limiting card slot 51.

[0029] In addition, it should be understood that although the present specification is described according to implementation modes, not every implementation mode contains only one independent technical solution. This description of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment may also be appropriately combined to form other implementation modes that can be understood by those skilled in the art.

Claims

1. A connection structure for a prefabricated concrete tower of a wind power plant, characterized in that: The invention comprises a first supporting tower (1) and a second supporting tower (2): the second supporting tower (2) is arranged below the first supporting tower (1); a reinforcing support mechanism (3) is arranged inside the first supporting tower (1) and the second supporting tower (2); a positioning and mounting mechanism (4) is connected between the first supporting tower (1) and the second supporting tower (2); a closed protection mechanism (5) is arranged on the side of the positioning and mounting mechanism (4); the reinforcing support mechanism (3) comprises a first supporting steel bar (31) and a second supporting steel bar (32); the first supporting steel bars (31) are embedded and installed at equal intervals inside the first supporting tower (1) and the second supporting tower (2); and second supporting steel bars (32) are arranged on the side of the first supporting steel bar (31) at equal intervals.

2. A connection structure for a prefabricated concrete tower for wind power generation according to claim 1, characterized in that: The first supporting steel bars (31) are arranged in a transverse direction, the second supporting steel bars (32) are arranged in a longitudinal direction, and the side outer wall of the first supporting steel bars (31) is connected to the side outer wall of the second supporting steel bars (32).

3. The connection structure for a prefabricated concrete tower for wind power generation according to claim 1, characterized in that: The positioning installation mechanism (4) comprises a positioning T-shaped bar (41), a first threaded hole (42) and a positioning T-shaped slot (43); the bottom outer wall of the first supporting tower (1) is provided with positioning T-shaped bars (41) at equal intervals in a surrounding manner; the side outer wall of the positioning T-shaped bar (41) is provided with a first threaded hole (42); the top outer wall of the second supporting tower (2) is provided with positioning T-shaped slots (43) at equal intervals in a surrounding manner; the positioning T-shaped bar (41) and the positioning T-shaped slot (43) are installed in a snap-fit ​​manner.

4. The connection structure for a prefabricated concrete tower for wind power generation according to claim 3, characterized in that: The second supporting tower (2) is provided with a placement groove (44) on the side outer wall of the first threaded hole (42), and the second supporting tower (2) is provided with a second threaded hole (45) on the side outer wall of the placement groove (44), and the second threaded hole (45) is connected to the positioning T-shaped groove (43).

5. The connection structure for a prefabricated concrete tower for wind power generation according to claim 4, characterized in that: The opening diameter of the first threaded hole (42) is equal to the opening diameter of the second threaded hole (45), and the first threaded hole (42) and the second threaded hole (45) are threadedly mounted with the positioning bolt (46), and the rotating portion of the positioning bolt (46) is located inside the placement groove (44).

6. The connection structure for a prefabricated concrete tower of a wind power plant according to claim 3, characterized in that: The side outer walls of the positioning T-shaped strip (41) are both configured as arc-shaped structures, and the side inner walls of the positioning T-shaped groove (43) are configured as arc-shaped structures.

7. The connection structure for a prefabricated concrete tower for wind power generation according to claim 5, characterized in that: The closed protection mechanism (5) comprises a limit card slot (51), a resistance card slot (52), a limit card plate (53) and a resistance card plate (54); the second supporting tower (2) is provided with a limit card slot (51) on the side outer wall of the placement slot (44); the second supporting tower (2) is provided with resistance card slots (52) on both sides of the limit card slot (51); the resistance card slots (52) are arranged inside the second supporting tower (2); a limit card plate (53) is arranged inside the limit card slot (51); resistance card plates (54) are symmetrically arranged on the outer walls of both sides of the limit card plate (53); the resistance card plate (54) and the resistance card slot (52) are engaged with each other.

8. The connection structure for a prefabricated concrete tower of a wind power plant according to claim 7, characterized in that: A support groove (55) is provided on the side outer wall of the limiting clamping plate (53), and a resisting spring (56) is provided on the inner wall of the bottom end of the support groove (55), and the resisting spring (56) is in contact with the side outer wall of the positioning bolt (46).

Images