CN107089301B - Tension tendon bottom connector and auxiliary locking mechanism thereof - Google Patents
Tension tendon bottom connector and auxiliary locking mechanism thereof Download PDFInfo
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- CN107089301B CN107089301B CN201710289904.4A CN201710289904A CN107089301B CN 107089301 B CN107089301 B CN 107089301B CN 201710289904 A CN201710289904 A CN 201710289904A CN 107089301 B CN107089301 B CN 107089301B
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
- B63B—SHIPS OR OTHER WATERBORNE VESSELS; EQUIPMENT FOR SHIPPING
- B63B21/00—Tying-up; Shifting, towing, or pushing equipment; Anchoring
- B63B21/50—Anchoring arrangements or methods for special vessels, e.g. for floating drilling platforms or dredgers
- B63B21/502—Anchoring arrangements or methods for special vessels, e.g. for floating drilling platforms or dredgers by means of tension legs
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
- B63B—SHIPS OR OTHER WATERBORNE VESSELS; EQUIPMENT FOR SHIPPING
- B63B21/00—Tying-up; Shifting, towing, or pushing equipment; Anchoring
- B63B21/50—Anchoring arrangements or methods for special vessels, e.g. for floating drilling platforms or dredgers
- B63B2021/505—Methods for installation or mooring of floating offshore platforms on site
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- Combustion & Propulsion (AREA)
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- Ocean & Marine Engineering (AREA)
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Abstract
The invention relates to the technical field of ocean engineering and discloses a tension tendon bottom connector and an auxiliary locking mechanism thereof, wherein the tension tendon bottom connector comprises a base and a connector matched with the base to play a role in locking connection, the peripheral wall of the base is provided with a mounting hole, the tension tendon bottom connector further comprises an auxiliary locking mechanism, the auxiliary locking mechanism comprises a fixing piece fixed on the base and a telescopic piece movably connected with the fixing piece, and the telescopic piece forms a preset angle with the horizontal direction to be used for preventing the connector from falling after stretching out of the inner wall surface of the base so as to enable the connector to slide into a groove of a lower guide block in the base.
Description
Technical Field
The invention relates to the technical field of ocean engineering, in particular to a tension tendon bottom connector and an auxiliary locking mechanism thereof.
Background
The tension leg platform is a vertically moored compliant platform, and is connected with the seabed pile foundation by a plurality of tension tendons, so that good motion performance of the platform body can be realized.
The tension tendon bottom connector is a component for connecting the tension tendon with the seabed pile foundation and can be divided into a connector fixedly connected with the tension tendon and a base fixedly connected with the seabed pile foundation. The bottom connector provides flexible connection for the tension tendons, and simultaneously is convenient to install on the sea floor and can be connected and disconnected rapidly, so that a rotary locking/unlocking mechanism is adopted in the general connector and the base.
As shown in fig. 1 and 2, fig. 1 is a schematic structural diagram of a conventional connector, fig. 2 is a schematic structural diagram of a conventional base, in which a plurality of guide flanges 91 and a plurality of connector bearing flanges 92 are uniformly distributed on the peripheral wall of the connector 9, and the connector 9 is further connected with a tension tendon 93,
the base 8 is composed of an outer cylinder 84, a plurality of upper guide blocks 83 arranged on the upper inner wall of the outer cylinder 84, a plurality of lower guide blocks 81 arranged on the lower inner wall of the outer cylinder 84, and a plurality of base bearing flanges 82 arranged on the inner wall of the outer cylinder 84 and positioned at the upper end of the upper guide blocks 83, wherein the upper guide blocks 83 and the lower guide blocks 81 are arranged in a staggered manner, and grooves are formed on the upper guide blocks 83 and the lower guide blocks 84;
the installation can be carried out according to the following steps:
the method comprises the following steps: tendon 93 moves down, and guide flange 91 of connector 9 rotates by itself under the guide of the upper arc surface of upper guide block 83, so that guide flange 91 of connector 9 slides into the groove of lower guide block 81, tendon 93 cannot move down further at this time;
and a second installation step: the tendon 93 moves upwards, under the guidance of the inclined plane of the upper guide block 83, the guide flange 91 of the connector 9 is inserted into the groove of the upper guide block 83, the connector bearing flange 92 of the connector 9 is in contact fit with the base bearing flange 82 of the base 8, the tendon 93 applies pretightening force, the installation is completed, and the connection state is maintained by the tensioning force of the tensioning tendon 93 after the connector 9 is in fit connection with the base 8.
When the disassembly is carried out, the following steps are carried out:
unloading step one: the tendons 93 move downward, the guide flange 91 of the connector 9 rotates along the inclined surface of the lower guide block 81, and the bottom of the connector 9 touches the bottom of the outer cylinder 84, at which time the tendons 93 cannot continue to move downward.
Unloading step two: the tendons 93 are moved upward and the connector 9 is separated from the base 8.
Furthermore, after the installation of the structure in the prior art is completed, under the conditions of severe sea conditions and the like, a certain probability exists that the downward tensile force received by the connector 9 exceeds the tension force of the tension tendons, the connector 9 sinks, and then the first unloading step and the second unloading step occur, namely the connector 9 is separated from the base 8, so that accidents are easy to cause and the structure is very dangerous.
Disclosure of Invention
The invention aims to solve the technical problem that the tension tendon bottom connector of the tension leg platform and the auxiliary locking mechanism thereof are provided for overcoming the defect that the base and the connector are separated at a certain probability when the tension tendon bottom connector bears severe sea conditions.
The technical scheme adopted for solving the technical problems is as follows: the utility model provides a structure tension tendon bottom connector, includes the base and cooperates with the base in order to play the connector of locking connection effect, be equipped with the mounting hole on the base perisporium, tension tendon bottom connector is still including being used for preventing the auxiliary locking mechanism that base and connector break away from, auxiliary locking mechanism is including fixing on the base, but with fixing swing joint, can follow with the mounting hole stretch out the extensible member of base internal face, just extensible member and horizontal direction become preset angle in order to be used for stretching out after the base internal face stop the falling of connector makes its slide into in the recess of the lower guide block in the base.
Further, be equipped with the through-hole on the mounting, the extensible member include with through-hole matched with screw thread axle, barrier and screw, wherein the screw thread axle pass behind the through-hole one end with barrier fixed connection, the other end with screw threaded connection, just be equipped with the restriction on the mounting screw thread along screw thread axle axial motion, radial float and make screw the piece centers on screw thread axle's central line is rotary motion's locating part, screw behind the angle of predetermineeing, the screw thread axle drives barrier stretch out base internal wall surface to predetermineeing the position, just barrier and horizontal direction become predetermined angle.
Further, the limiting piece comprises a radial limiting part which is fixed on the fixing piece and limits the screwing piece to move along the radial direction of the threaded shaft, and a transverse limiting part which is extended from one end of the radial limiting part away from the fixing piece in the radial direction and limits the screwing piece to move along the axial direction of the threaded shaft.
Further, the blocking piece and the mounting hole are respectively provided with a first step part and a second step part which are matched with each other and used for limiting the moving distance of the blocking piece.
Further, the auxiliary locking mechanism further comprises an auxiliary piece, one end of the auxiliary piece is fixedly connected with the blocking piece, and the other end of the auxiliary piece is movably connected with the fixing piece.
The embodiment of the invention also provides an auxiliary locking mechanism which comprises a fixing piece and a telescopic piece movably connected with the fixing piece, wherein the fixing piece is fixed on the outer base, the telescopic piece can stretch out the inner wall of the outer base along a mounting hole on the outer base, and a preset angle is formed between the telescopic piece and the horizontal direction so as to be used for preventing the falling of the outer connector from sliding into a groove of a lower guide block of the outer base after stretching out the inner wall surface of the outer base.
Further, be equipped with the through-hole on the mounting, the extensible member include with through-hole matched with screw thread axle, barrier and screw, wherein the screw thread axle pass behind the through-hole one end with barrier fixed connection, the other end with screw threaded connection, just be equipped with the restriction on the mounting screw thread along screw thread axle axial motion, radial float and make screw the piece centers on screw thread axle's central line is rotary motion's locating part, screw behind the angle of predetermineeing, the screw thread axle drives barrier stretch out base internal wall surface to predetermineeing the position, just barrier and horizontal direction become predetermined angle.
Further, the limiting piece comprises a radial limiting part which is fixed on the fixing piece and limits the screwing piece to move along the radial direction of the threaded shaft, and a transverse limiting part which is extended from one end of the radial limiting part away from the fixing piece in the radial direction and limits the screwing piece to move along the axial direction of the threaded shaft.
Further, the blocking piece and the mounting hole are respectively provided with a first step part and a second step part which are matched with each other and used for limiting the moving distance of the blocking piece.
Further, the auxiliary locking mechanism further comprises an auxiliary piece, one end of the auxiliary piece is fixedly connected with the blocking piece, and the other end of the auxiliary piece is movably connected with the fixing piece.
The tension tendon bottom connector provided by the invention has the following beneficial effects: through increasing auxiliary locking mechanism, on not changing the main structure of current base, connector, can prevent that base and connector from appearing breaking away from the phenomenon under adverse sea conditions etc. has improved the factor of safety of tension leg platform work in adverse sea conditions, has practiced thrift space and cost.
Drawings
The invention will be further described with reference to the accompanying drawings and examples, in which:
FIG. 1 is a schematic view of a prior art connector;
FIG. 2 is a schematic view of a prior art base;
FIG. 3 is a schematic diagram of a prior art base disengaged from a connector;
FIG. 4 is a schematic view of the structure of the embodiment of the invention with the tension tendon bottom connector disconnected;
FIG. 5 is a schematic cross-sectional view of an embodiment of the present invention after attachment of a tension tendon base connector;
FIG. 6 is a schematic diagram of the operation of the tension tendon bottom connector in an embodiment of the present invention;
FIG. 7 is an enlarged schematic view of FIG. 4 at B;
FIG. 8 is a schematic diagram of an auxiliary locking mechanism in an embodiment of the invention;
FIG. 9 is a schematic cross-sectional view of an auxiliary locking mechanism in an embodiment of the invention;
FIG. 10 is a schematic view of another configuration of the secondary locking mechanism in an embodiment of the present invention;
FIG. 11 is a schematic cross-sectional view of another embodiment of the secondary locking mechanism of the present invention.
Detailed Description
Examples
Referring to fig. 4-7, a tendon bottom connector includes a base 8 and a connector 9 cooperating with the base 8 to perform a locking connection, wherein a mounting hole 85 is formed in a peripheral wall of the base 8, the tendon bottom connector further includes an auxiliary locking mechanism 1 for preventing the base 8 from being separated from the connector 9, the auxiliary locking mechanism 1 includes a fixing member 11 fixed on the base 8, a telescopic member 12 movably connected with the fixing member 1 and capable of extending out of an inner wall surface of the base 8 along the mounting hole 85, and the telescopic member 12 forms a predetermined angle with a horizontal direction for blocking a falling of the connector 9 after extending out of the inner wall surface of the base 8 so as to slide into a groove of a lower guide block in the base 8.
As shown in fig. 4 and 5, specifically, the plurality of guide flanges 91 and the plurality of connector bearing flanges 92 are uniformly distributed on the outer peripheral wall of the connector 9, and the connector 9 is further connected with the tension tendons 93.
The base 8 is composed of an outer cylinder 84, a plurality of upper guide blocks 83 arranged on the upper inner wall of the outer cylinder 84, a plurality of lower guide blocks 81 arranged on the lower inner wall of the outer cylinder 84 and a plurality of base bearing flanges 82 arranged on the inner wall of the outer cylinder 84 and positioned at the upper end of the upper guide blocks 83, wherein the upper guide blocks 83 and the lower guide blocks 81 are arranged in a staggered manner, and grooves capable of placing the guide flanges 91 are formed in the upper guide blocks 83 and the lower guide blocks 81;
further, the mounting may be performed as follows:
the method comprises the following steps: the tension tendons 93 move downwards, the guide flange 91 of the connector 9 rotates under the guide of the arc surface at the upper part of the upper guide block 83, so that the guide flange 91 of the connector 9 slides into the groove of the lower guide block 81, and the tension tendons 93 cannot move downwards continuously;
and a second installation step: the tension tendon 93 moves upwards, the guide flange 91 of the connector 9 is inserted into the groove of the upper guide block 83 under the guidance of the inclined plane of the upper guide block 83, the connector bearing flange 92 of the connector 9 is in contact fit with the base bearing flange 82 of the base 8, the tension tendon 93 applies pretightening force, the installation is completed, and the connection state is maintained through the tensioning force of the tension tendon 93 after the connector 9 is connected with the base 8 in a matched manner.
When the disassembly is carried out, the following steps are carried out:
unloading step one: the tension tendon 93 moves down, the guide flange 91 of the connector 9 rotates along the inclined plane of the lower guide block 81, the bottom of the connector 9 touches the bottom of the outer cylinder 84, and at this time the tension tendon 93 cannot move down.
Unloading step two: the tendons 93 are moved upward and the connector 9 is separated from the base 8.
As shown in fig. 4, 5 and 6, an auxiliary locking mechanism 1 is installed between an upper guide block 83 and a lower guide block 81 adjacent to the inner wall of the base 8, that is, an installation hole 85 is provided on the base 8 between the upper guide block 83 and the lower guide block 81, so that the telescopic member 12 can extend out of the inner wall surface of the base 8 along the installation hole 85, and the telescopic member 12 forms a preset angle with the horizontal direction, and further when the unloading step is caused by a severe ocean condition or the like (the downward pulling force is greater than the tensioning force of the tension tendons 93), the telescopic member 12 can extend out of the inner wall surface of the base 8 to block the falling of the connector 9, that is, the connector 9 is prevented from falling to the bottom of the outer cylinder 84, that is, after the telescopic member 12 is extended (the side end surface of the telescopic member 12) can block the guide flange 91, so that the side end surface of the telescopic member 12 forming the preset angle with the horizontal direction can slide into the groove of the lower guide block 81 in the base 8.
As shown in fig. 6, when the downward tension is lost, the tension tendon 93 moves upward under the action of the tension force of the tension tendon 93, the guide flange 91 moves upward, and slides into the groove of the upper guide block 83 along the inclined surface of the upper guide block 83, so that the connector bearing flange 92 and the base bearing flange 82 can be in contact and fit, and the normal use state is restored. So that the connector 9 can be prevented from being directly separated from the base 8 after being moved up the tension tendon 93.
It will be appreciated that the location of the mounting hole 85 may be determined by the path of the connector 9 falling from the groove of the upper guide block 83 and the location of the lower guide block 81, and only after the extension of the telescopic member 12 (the side end face of the telescopic member 12) may stop the guide flange 91, so that the guide flange 91 may slide into the groove of the lower guide block 81 in the base 8 along the side end face of the telescopic member 12 at a predetermined angle to the horizontal direction. And the fixing piece is provided with a limiting piece which limits the screwing piece to axially move along the threaded shaft, radially float and enable the screwing piece to rotate around the central line of the threaded shaft, after the screwing piece rotates by a preset angle, the threaded shaft drives the blocking piece to extend out of the inner wall surface of the base to a preset position, and the blocking piece forms a preset angle with the horizontal direction.
Further, referring to fig. 7-9, in this embodiment, a through hole 111 is provided on the fixing member 11, the telescopic member 12 includes a threaded shaft 121, a blocking member 122 and a screwing member 123 that are matched with the through hole 111 (may be a screw hole, a round hole, etc., only needs to ensure that the threaded shaft 121 can pass through), wherein the threaded shaft 121 passes through the rear end of the through hole 111 and is fixedly connected with the blocking member 122, the other end is in threaded connection with the screwing member 123, and the fixing member 11 is provided with a limiting member 112 that limits the axial movement and radial movement of the screwing member 123 along the threaded shaft 121 and enables the screwing member 123 to perform a rotational movement about the center line of the threaded shaft 121, after the installation with the base 8 is completed, the screwing member 123 rotates by a preset angle, the threaded shaft 121 drives the blocking member 122 to stretch out of the inner wall surface of the base 8 to a preset position, and the blocking member 122 forms a preset angle with a horizontal direction (the horizontal direction refers to the horizontal direction in fig. 4).
The screwing member 123 is in threaded connection with the threaded shaft 121, and the screwing member 123 is limited by the limiting member 112, so that the axial movement (movement and rotation) and the radial movement of the screwing member 123 can not be performed, so that the screwing member 123 moves around the center line of the threaded shaft 121 in the limiting member 112, and when the screwing member 123 is rotated, the threaded shaft 121 can be screwed out of the threaded engagement section of the screwing member 123 by a certain distance (similar to a screw transmission) due to the threaded connection of the screwing member 123 and the threaded shaft 121, that is, the rotational movement of the screwing member 123 can be converted into the movement of the threaded shaft 121, so that the threaded shaft 121 can pass through the through hole 111 in the fixing member 11 and be screwed out by a certain distance, and the blocking member 122 can be driven to extend by a certain distance, and simultaneously when the screwing member 123 is reversely rotated, the threaded shaft 121 can be screwed into the threaded engagement section of the screwing member 123 by a certain distance, so that the blocking member 122 is contracted into the mounting hole 85.
Further, after the screwing member 123 rotates by the predetermined angle, the threaded shaft 121 drives the blocking member 122 to extend out of the inner wall surface of the base 8 to the predetermined position, and the blocking member 122 forms the predetermined angle with the horizontal direction (the horizontal direction refers to the horizontal direction in fig. 4), so that when the unloading step is performed due to the severe ocean condition or the like (the downward pulling force is greater than the tensioning force of the tension tendon 93), the blocking member 122 can block the falling of the connecting head 9, i.e. prevent the connecting head 9 from falling to the bottom of the outer cylinder 84, i.e. the side end surface of the blocking member 122 can block the guiding flange 91, so that the guiding flange 91 can slide into the groove of the lower guiding block 81 in the base 8 along the side end surface of the blocking member 122 forming the predetermined angle with the horizontal direction.
Specifically, as shown in fig. 7 to 9, the stopper 112 includes a radial stopper 1121 fixed to the fixing member 11 and restricting radial movement of the screw 123 along the screw shaft 121, and an axial stopper 1122 extending radially from an end of the radial stopper 1121 away from the fixing member 11 and restricting axial movement of the screw 123 along the screw shaft 121.
The above-mentioned, specifically, the limiting member 112 includes a radial limiting portion 1121 and an axial limiting portion 1122, which are specifically in a structure similar to a buckle, in order to cooperate with the above-mentioned limiting member 112, a step-like structure may be provided on the screwing member 123, and then the radial limiting portion 1121 and the axial limiting portion 1122 on the limiting member 112 are formed with a space for accommodating the step structure, so as to limit the radial play and the axial movement (movement and rotation) of the screwing member 123, so that the screwing member 123 can only perform a rotational movement about the center line of the threaded shaft 123, and meanwhile, in order to ensure that the screwing member 123 can smoothly perform a rotational movement about the center line of the threaded shaft 123, the space for accommodating the step structure may be slightly larger than the step structure.
Further, as shown in fig. 8 and 9, the auxiliary locking mechanism 1 further includes an auxiliary member 13, one end of the auxiliary member 13 is fixedly connected with the blocking member 122, and the other end is movably connected with the fixing member 11.
The auxiliary member 13 may serve as a guide, and may serve as an auxiliary support between the fixing member 11 and the blocking member 121, so that the bearing capacity of the threaded shaft 121 may be reduced, and further, in this embodiment, as shown in the drawing, the auxiliary member 13 may include two shafts symmetrically disposed about the threaded shaft 121, and further, the two shafts may be in interference fit (fixed) with the blocking member 122, and in clearance fit (movable connection) with the fixing member 11.
Specifically, as shown in fig. 7, the stopper 122 and the mounting hole 85 are provided with a first step 1221 and a second step 851, respectively, which are engaged with each other to limit the moving distance of the stopper 122.
The cooperation of the first step 1221 and the second step 851 can not only limit the movement distance of the blocking member 122, i.e. limit the distance that the threaded shaft 121 is screwed out of the threaded section of the screwing member 123, but also prevent the threaded shaft 121 from being unscrewed too far and being separated from the threaded section of the screwing member 123, i.e. the threaded shaft 121 is integrally screwed out of the threaded section of the screwing member 123;
the function of fixing the blocking member 122 after the threaded shaft 121 is screwed out of the threaded section of the screwing member 123 by a preset distance can also be achieved, since the blocking member 122 at the end of the threaded shaft 121 is poor in bearing capacity after the threaded shaft 121 is screwed out of the threaded section of the screwing member 123 by a certain distance, namely, if the blocking member 122 is too large in bearing capacity after the threaded shaft 121 is screwed out of the threaded section of the screwing member 123, the blocking member 122 can be caused to rotate, namely, the threaded shaft 121 rotates, and then the blocking member 122 is easy to rotate to be located at a position different from an expected position, and further, the threaded shaft 121 is screwed out of the threaded section of the screwing member 123 through the pretightening force of threads, so that the first stepped portion 1221 on the blocking member 122 is tightly connected with the second stepped portion 851 on the mounting hole 85, and further, the bearing capacity of the blocking member 122 can be increased, and requirements of different environments can be met.
It will be appreciated that, after the auxiliary locking mechanism 1 is installed on the base 8, the blocking member 122 forms a predetermined angle with the horizontal direction, that is, after the threaded shaft 121 is screwed out of the threaded section of the screwing member 123 by a predetermined distance, the blocking member 122 may extend out of the inner wall of the base 8 to a predetermined position, and the blocking member 122 forms a predetermined angle with the horizontal direction, and it may be understood that the angle and the position may be determined according to the actual situation, only need to achieve that the blocking member 122 can block the falling of the connector 9, that is, prevent the connector 9 from falling to the bottom of the outer cylinder 84, that is, the blocking member 122 can block the guide flange 91, so that the guide flange 91 may slide into the groove of the lower guide block 81 in the base 8 along the end surface of the blocking member 122.
Of course, in the present embodiment, since the first step portion 1221 and the second step portion 851 are provided, the angle and the position can be controlled by the thickness of the first step portion 1221 and the second step portion 851, that is, the rotation angle of the screwing member 123 (that is, the distance of the screw shaft 121 from the screw section of the screwing member 123) is controlled so as to achieve that the first step portion 1221 and the second step portion 851 are tightly connected together, and then the angle formed by the blocking member 122 and the horizontal direction is the preset angle (the horizontal direction refers to the horizontal direction in fig. 4).
Preferably, referring to fig. 10 and 11, according to the requirements of national standard (GB/T21412.8-2010), the screwing member 123 may be configured as a TDU handle, the limiting member 112 may be configured as a TDU handle buckle, and meanwhile, the TDU handle needs to be matched with the TDU sleeve 14, so that the TDU sleeve 14 is further fixed on the fixing member 11, and further, the TDU of the torque tool is assembled on the ROV (underwater robot), so that the TDU handle can be driven to rotate, and finally, the blocking member 121 is moved along the axis thereof to reach a preset position, so that the blocking member 11 extends out of the inner wall of the base 8 at a preset angle with the horizontal direction.
Meanwhile, as the tension tendon bottom connector works underwater, all the components can be made of stainless steel and the like.
In summary, in the embodiment of the invention, by adding the auxiliary locking mechanism to the existing tension tendon bottom connector, the separation phenomenon of the base and the connector under the condition of severe sea conditions and the like can be prevented without changing the main structures of the existing base and the connector, the safety coefficient of the tension leg platform working under the severe sea conditions is improved, and the space and the cost are saved.
It is to be understood that the above examples only represent preferred embodiments of the present invention, which are described in more detail and are not to be construed as limiting the scope of the invention; it should be noted that, for a person skilled in the art, the above technical features can be freely combined, and several variations and modifications can be made without departing from the scope of the invention; therefore, all changes and modifications that come within the meaning and range of equivalency of the claims are to be embraced within their scope.
Claims (4)
1. The tension tendon bottom connector comprises a base (8) and a connector (9) matched with the base (8) to play a role in locking connection, and is characterized in that a mounting hole (85) is formed in the peripheral wall of the base (8), the tension tendon bottom connector further comprises an auxiliary locking mechanism (1) for preventing the base (8) from being separated from the connector (9), the auxiliary locking mechanism (1) comprises a fixing piece (11) fixed on the base (8), a telescopic piece (12) movably connected with the fixing piece (11) and capable of extending out of the inner wall surface of the base (8) along the mounting hole (85), and the telescopic piece (12) forms a preset angle with the horizontal direction to be used for blocking the falling of the connector (9) after extending out of the inner wall surface of the base (8) so as to enable the connector to slide into a groove of a lower guide block in the base (8);
the fixing piece (11) is provided with a through hole (111), the telescopic piece (12) comprises a threaded shaft (121), a blocking piece (122) and a screwing piece (123) which are matched with the through hole (111), wherein one end of the threaded shaft (121) penetrates through the through hole (111) and then is fixedly connected with the blocking piece (122), the other end of the threaded shaft is in threaded connection with the screwing piece (123), the fixing piece (11) is provided with a limiting piece (112) which limits the screwing piece (123) to move axially and move radially along the threaded shaft (121) and enables the screwing piece (123) to rotate around the central line of the threaded shaft (121), after the screwing piece (123) rotates by a preset angle, the threaded shaft (121) drives the blocking piece (122) to stretch out of the inner wall surface of the base (8) to a preset position, and the blocking piece (122) forms a preset angle with the horizontal direction;
the limiting piece (112) comprises a radial limiting part (1121) which is fixed on the fixed piece (11) and limits the radial movement of the screwing piece (123) along the threaded shaft (121), and an axial limiting part (1122) which is radially extended from one end of the radial limiting part (1121) away from the fixed piece (11) and limits the axial movement of the screwing piece (123) along the threaded shaft (121);
the blocking piece (122) and the mounting hole (85) are respectively provided with a first step part (1221) and a second step part (851) which are matched with each other and used for limiting the moving distance of the blocking piece (122).
2. A tension tendon bottom connector as claimed in claim 1, characterised in that the auxiliary locking mechanism (1) further comprises an auxiliary member (13), one end of the auxiliary member (13) being fixedly connected to the blocking member (122) and the other end being movably connected to the fixing member (11).
3. The auxiliary locking mechanism is characterized by comprising a fixing piece (11) and a telescopic piece (12) which is movably connected with the fixing piece (11), wherein the fixing piece (11) is fixed on an outer base (8), the telescopic piece (12) can stretch out the inner wall of the outer base (8) along a mounting hole (85) on the outer base (8), and the telescopic piece (12) forms a preset angle with the horizontal direction so as to be used for blocking the falling of an outer connector (9) after stretching out of the inner wall surface of the outer base (8) to enable the connector to slide into a groove of a lower guide block in the outer base (8);
the fixing piece (11) is provided with a through hole (111), the telescopic piece (12) comprises a threaded shaft (121), a blocking piece (122) and a screwing piece (123) which are matched with the through hole (111), wherein one end of the threaded shaft (121) penetrates through the through hole (111) and then is fixedly connected with the blocking piece (122), the other end of the threaded shaft is in threaded connection with the screwing piece (123), the fixing piece (11) is provided with a limiting piece (112) which limits the screwing piece (123) to move axially and move radially along the threaded shaft (121) and enables the screwing piece (123) to rotate around the central line of the threaded shaft (121), after the screwing piece (123) rotates by a preset angle, the threaded shaft (121) drives the blocking piece (122) to stretch out of the inner wall surface of the base (8) to a preset position, and the blocking piece (122) forms a preset angle with the horizontal direction;
the limiting piece (112) comprises a radial limiting part (1121) which is fixed on the fixed piece (11) and limits the radial movement of the screwing piece (123) along the threaded shaft (121), and an axial limiting part (1122) which is radially extended from one end of the radial limiting part (1121) away from the fixed piece (11) and limits the axial movement of the screwing piece (123) along the threaded shaft (121);
the blocking piece (122) and the mounting hole (85) are respectively provided with a first step part (1221) and a second step part (851) which are matched with each other and used for limiting the moving distance of the blocking piece (122).
4. An auxiliary locking mechanism as claimed in claim 3, further comprising an auxiliary member (13), one end of the auxiliary member (13) being fixedly connected to the blocking member (122) and the other end being movably connected to the fixing member (11).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710289904.4A CN107089301B (en) | 2017-04-27 | 2017-04-27 | Tension tendon bottom connector and auxiliary locking mechanism thereof |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710289904.4A CN107089301B (en) | 2017-04-27 | 2017-04-27 | Tension tendon bottom connector and auxiliary locking mechanism thereof |
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| Publication Number | Publication Date |
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| CN107089301A CN107089301A (en) | 2017-08-25 |
| CN107089301B true CN107089301B (en) | 2023-07-04 |
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| CN201710289904.4A Active CN107089301B (en) | 2017-04-27 | 2017-04-27 | Tension tendon bottom connector and auxiliary locking mechanism thereof |
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|---|---|---|---|---|
| CN107628198B (en) * | 2017-09-04 | 2019-07-26 | 中国船舶工业集团公司第七0八研究所 | One kind is from tension type tension tendon and its installation method |
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Also Published As
| Publication number | Publication date |
|---|---|
| CN107089301A (en) | 2017-08-25 |
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