Adjustable high-stability connecting bridge and catamaran with same

Abstract

The invention relates to the technical field of ship design, in particular to an adjustable high-stability connecting bridge and a catamaran with the same, the adjustable high-stability connecting bridge comprises a fixed frame, and the fixed frame is provided with a linear driving assembly, an extension frame and a movable frame; the extension frame is connected with the fixing frame, and a supporting plate used for supporting the cabin is arranged on the extension frame; the movable frame is in sliding fit with the extension frame, and a movable plate in sliding fit with the supporting plate is arranged on the movable frame; the linear driving assembly is used for controlling the movable frame to move; a reinforcing structure used for being connected with the movable frame is arranged on the fixed frame; and a control mechanism for controlling the extension of the reinforcing structure is arranged on the movable frame. The length of the connecting bridge can be adjusted, and the problem that the stability of a connecting bridge of a traditional catamaran cannot be guaranteed after the length is adjusted is solved.

Description

Technical Field

[0001] The invention relates to the technical field of ship design, and in particular to an adjustable high-stability connecting bridge and a catamaran with the connecting bridge. Background Art

[0002] A catamaran is a special type of ship that has the advantages of good stability, wide deck and flexible maneuverability. The catamaran has two hulls connected by a connecting bridge, and the length of the connecting bridge has a direct impact on the stability of the catamaran. A longer connecting bridge can increase the overall width of the hull, thereby improving the stability of the ship in wind and waves, reducing roll and pitch, and ensuring safe navigation. However, the existing catamaran structure is fixed and can often only be used for fixed ship types, and the usage scenarios are limited.

[0003] The Chinese utility model patent document with authorization announcement number CN221764845U discloses a connecting bridge structure for a catamaran model. Through the setting of a moving mechanism, when the staff conducts a tank drag test on the first ship model, the second ship model and the test deck, when a collision occurs, the staff can drive the actuator to work through the driving assembly, so that the actuator can drive the installation frame and the test deck to move, without the need to remake the model, thereby improving work efficiency.

[0004] However, the existing adjustable connecting bridge is only designed for water tank dragging tests and can only adjust the height of the test deck. The adjustment range is limited and cannot adapt to more usage scenarios. When adjusting the length of the connecting bridge of a traditional catamaran, the overall strength and stability of the connecting bridge cannot be guaranteed. Summary of the invention

[0005] In view of the above problems, an adjustable high-stability connecting bridge and a catamaran having the connecting bridge are provided, which solve the problem that the connecting bridge of a traditional catamaran cannot ensure stability after adjusting the length through a fixing frame, a reinforcement structure and a control mechanism.

[0006] In order to solve the problems of the prior art, the present invention provides an adjustable high-stability connecting bridge, including a fixed frame, on which a linear drive assembly, an extension frame and a movable frame are arranged; the extension frame is connected to the fixed frame, and the extension frame is provided with a support plate for supporting a cabin; the movable frame is slidably matched with the extension frame, and the movable frame is provided with a movable plate that slidably matches with the support plate; the linear drive assembly is used to control the movement of the movable frame; the fixed frame is provided with a reinforcement structure for connecting with the movable frame; the movable frame is provided with a control mechanism for controlling the extension of the reinforcement structure; in a working state, when the linear drive assembly controls the movable frame to extend and the length of the connecting bridge is above a threshold value, the control mechanism controls the reinforcement structure to extend to an expanded state; when the linear drive assembly controls the movable frame to retract and the length of the connecting bridge is below a threshold value, the control mechanism controls the reinforcement structure to retract to a recovered state.

[0007] Preferably, the reinforcement structure includes a first rod body, a second rod body, a nitrogen spring and a limiting assembly; the first end of the first rod body is hinged to the extension frame, and a first slide groove is provided on the first rod body; the first end of the second rod body is provided with a first shaft member, the second end of the second rod body is hinged to the movable frame, and the first shaft member on the second rod body is slidably matched with the first slide groove on the first rod body; the nitrogen spring is transmission-connected to the control mechanism, the end of the piston rod of the nitrogen spring is hinged to the first shaft member, and an electric control system for controlling the extension and retraction of the nitrogen spring is provided on the nitrogen spring; the limiting assembly is used to limit the rotation of the second rod body.

[0008] Preferably, the limiting assembly includes an articulated seat and a second shaft member; the articulated seat is arranged on the movable frame, and the second shaft member is arranged on the articulated seat; a second slide groove is provided on the second rod body, and a notch is provided at one end of the second slide groove close to the first shaft member, and the second shaft member and the second slide groove can be separably slidably fitted; in a working state, when the second shaft member slides to the notch of the second slide groove, the second shaft member no longer restricts the rotation of the second rod body.

[0009] Preferably, the control mechanism includes a fixed seat, a first movable seat and a transmission assembly; there are two fixed seats, the two fixed seats are respectively arranged on the extension frame and the movable frame, and the first rod body and the second rod body are respectively hinged to the two fixed seats; there are at least two first movable seats, the movable frame is provided with a first guide rail, and the first movable seat is slidably installed on the first guide rail; the hinged seat is arranged on the first movable seat close to the extension frame, and the first movable seat away from the extension frame is provided with a support seat, the support seat is provided with a fourth shaft, and the nitrogen spring is hinged to the fourth shaft; the movable frame is transmission-connected to the first movable seat through the transmission assembly.

[0010] Preferably, the transmission assembly includes a first connecting rod, a second connecting rod, a third connecting rod, a second movable seat and a mounting seat; the two ends of the first connecting rod are respectively hinged to the fixed seat and the second movable seat; the second connecting rod is rotatably arranged on the first movable seat, and the two ends of the second connecting rod are respectively hinged to the two second movable seats; the two ends of the third connecting rod are respectively connected to the first movable seat close to the extension frame and the fixed seat located on the extension frame; two mounting seats are provided, the mounting seats are slidably arranged on the movable frame, the mounting seats are provided with a second guide rail, and the second movable seat is slidably installed on the second guide rail.

[0011] Preferably, a locking assembly for limiting the movement of the movable frame is provided on the extension frame; and a control assembly for releasing the locking assembly from affecting the movement of the movable frame is provided on the movable frame.

[0012] Preferably, there are multiple locking assemblies, and the multiple locking assemblies are equidistantly arranged along the extension direction of the extension frame; the locking assembly includes a locking block, a fixing plate and an elastic member; the locking block is slidably installed on the extension frame; the fixing plate is fixedly arranged on the extension frame; the two ends of the elastic member are respectively connected to the locking block and the fixing plate; and a locking groove cooperating with the locking block is opened on the movable frame.

[0013] Preferably, the control assembly includes a push block and a guide rod; the push block is slidably arranged on the movable frame, and the push block is located in the locking groove; the guide rod is arranged on the push block, and the guide rod is slidably matched with the movable frame.

[0014] Preferably, a connecting frame is provided on the push block, and a transverse plate is provided at the end of the connecting frame; when the second rod body is in the retracted state, the second rod body squeezes the transverse plate and pushes the transverse plate to move toward the extension frame.

[0015] A catamaran comprises split hulls connected by extension cabins. When a connecting bridge is extended, the split hulls are driven to extend synchronously.

[0016] Compared with the prior art, the present invention has the following beneficial effects: 1. The present invention realizes the function of adjustable length of the connecting bridge through a fixing frame, a reinforcing structure and a control mechanism, and achieves the effect of improving the stability of the connecting bridge when the connecting bridge is extended through the cooperation of the reinforcing structure and the control mechanism. When the connecting bridge is in a retracted state, the reinforcing structure is controlled by the control mechanism to retract to a recovered state, so as to improve the maneuverability of the hull and reduce resistance. When the connecting bridge is in an extended state, the support plate and the movable plate are also unfolded, thereby increasing the capacity of the cabin. And the reinforcing structure is controlled by the control mechanism to extend to an unfolded state, thereby increasing the support strength of the connecting bridge, thereby improving the stability of the connecting bridge and avoiding damage to the connecting bridge due to stress concentration after extension. Since the structure greatly increases the capacity of the cabin and has high connection strength, it can be applied to ships that are symmetrical left and right, front and back, and have double-head propulsion. When used on electric push boats, the ship type can accommodate a ship battery pack capacity of 3870 kWh; 2. The present invention realizes the function of supporting the connecting bridge when the connecting bridge is in an extended state through the first rod, the second rod and the nitrogen spring, and actively controls the extension and contraction of the first rod and the second rod through the nitrogen spring with an electronic control system, the electronic control system includes components such as a pressure sensor, a controller and an actuator, the actuator is preferably a solenoid valve, and the electronic control system is electrically connected to the controller. The nitrogen spring with an electronic control system has the advantages of high precision, fast response and high reliability; 3. The present invention realizes the function of guiding the movement of the articulated seat and the support seat through the fixed seat, the first movable seat, the transmission assembly and the first guide rail, thereby achieving the effect of controlling the movement trajectory of the nitrogen spring and the articulated seat, and adjusting the separation position of the articulated seat and the second slide groove by moving the movable frame in cooperation with the transmission assembly. In the working state, when the second shaft slides to the notch of the second slide groove, the second shaft no longer restricts the rotation of the second rod body. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1It is a first-person perspective stereoscopic diagram of a catamaran with an adjustable high-stability connecting bridge; Figure 2 is a perspective schematic diagram of a catamaran with an adjustable high-stability connecting bridge from a second perspective; Figure 3 It is a three-dimensional schematic diagram of an adjustable high-stability connecting bridge when the reinforcement structure is in a recovered state; Figure 4 It is a three-dimensional schematic diagram of an adjustable high-stability connecting bridge in a state where the reinforcement structure is in an unfolded state; Figure 5 It is a three-dimensional schematic diagram of the strengthening structure and control mechanism in an adjustable high-stability connecting bridge; Figure 6 It is a three-dimensional schematic diagram of an extension frame, a movable frame reinforcement structure and a control mechanism in an adjustable high-stability connecting bridge when the reinforcement structure is in an unfolded state; Figure 7 It is a three-dimensional exploded schematic diagram of a movable frame, a locking assembly on an extension frame and a control assembly in an adjustable high-stability connecting bridge; Figure 8 yes Figure 7 A local enlarged schematic diagram of the middle A; Fig. 9 It is a three-dimensional schematic diagram of an extension frame, a movable frame reinforcement structure and a control mechanism in an adjustable high-stability connecting bridge when the reinforcement structure is in a recovered state; Fig.10 It is a three-dimensional schematic diagram of a locking component and a control component in an adjustable high-stability connecting bridge.

[0018] The numbers in the figure are: 1-hull; 2-fixed frame; 21-extension frame; 211-support plate; 22-movable frame; 221-movable plate; 222-first guide rail; 223-locking groove; 23-linear drive assembly; 231-vertical plate; 232-screw; 24-locking assembly; 241-locking block; 242-fixed plate; 243-elastic member; 25-control assembly; 251-push block; 252-guide rod; 253-connecting frame; 254-transverse plate; 3-reinforcement structure; 31-first rod body ;311-first slide groove;32-second rod body;321-first shaft member;322-second slide groove;33-nitrogen spring;34-limiting assembly;341-hinge seat;342-second shaft member;4-control mechanism;41-fixed seat;42-first movable seat;421-support seat;4211-fourth shaft member;43-transmission assembly;431-first connecting rod;432-second connecting rod;433-third connecting rod;434-second movable seat;435-mounting seat;4351-second guide rail. DETAILED DESCRIPTION

[0019] In order to further understand the features, technical means, specific objectives and functions of the present invention, the present invention is further described in detail below in conjunction with the accompanying drawings and specific implementation methods.

[0020] Reference Figure 1-Figure 4 : An adjustable high-stability connecting bridge, comprising a fixed frame 2, on which a linear drive assembly 23, an extension frame 21 and a movable frame 22 are arranged; the extension frame 21 is connected to the fixed frame 2, and the extension frame 21 is provided with a support plate 211 for supporting the cabin; the movable frame 22 is located above the extension frame 21 and slides with the extension frame 21, and the movable frame 22 is provided with a movable plate 221 that slides with the support plate 211; the linear drive assembly 23 is used to control the movement of the movable frame 22; the fixed frame 2 is provided with a reinforcing structure 3 for connecting with the movable frame 22; the movable frame 22 is provided with a control mechanism 4 for controlling the extension of the reinforcing structure 3; in the working state, when the linear drive assembly 23 controls the movable frame 22 to extend and the length of the connecting bridge is above the threshold, the control mechanism 4 controls the reinforcing structure 3 to extend to the expanded state; when the linear drive assembly 23 controls the movable frame 22 to retract and the length of the connecting bridge is below the threshold, the control mechanism 4 controls the reinforcing structure 3 to retract to the recovered state.

[0021] The present invention realizes the function of adjustable length of the connecting bridge through the fixing frame 2, the reinforcing structure 3 and the control mechanism 4, and achieves the effect of improving the stability of the connecting bridge when the connecting bridge is extended through the cooperation of the reinforcing structure 3 and the control mechanism 4. When the connecting bridge is in a retracted state, the reinforcing structure 3 is controlled by the control mechanism 4 to retract to a recovery state to improve the maneuverability of the hull 1 and reduce resistance. When the connecting bridge is in an extended state, the support plate 211 and the movable plate 221 are also unfolded, thereby increasing the capacity of the cabin. The cabin on the connecting bridge has a large capacity characteristic. If applied to an electric push boat, it can accommodate a ship battery pack capacity of 3870 kWh; and the reinforcing structure 3 is controlled by the control mechanism 4 to extend to an extended state, thereby improving the support strength of the connecting bridge, thereby improving the stability of the connecting bridge and avoiding damage to the connecting bridge due to stress concentration after extension. The linear drive assembly 23 includes a vertical plate 231 and a screw 232. The fixed frame 2 is equipped with a rotary driver for driving the screw 232 to rotate. The vertical plate 231 is arranged on the movable frame 22. The screw 232 is threadedly connected to the vertical plate 231. The fixed frame 2 is provided with a controller for human-machine interaction, and the rotary driver is preferably a servo motor, which is electrically connected to the controller. In the working state, when the length of the connecting bridge needs to be adjusted, a signal is sent to the rotary driver through the controller. After receiving the signal, the rotary driver drives the screw 232 to rotate, and the screw 232 drives the vertical plate 231 threadedly connected thereto to move, thereby adjusting the length of the connecting bridge to adjust the length of the connecting bridge. 231 drives the movable frame 22 to slide on the extension frame 21, and the movable frame 22 drives the movable plate 221 to move, and then drives the cabin to move through the movable plate 221. The cabin adopts a split design and is connected to the support plate 211 and the movable plate 221. The cabin is not shown in the figure. When the length of the connecting bridge is extended to above the threshold, the control mechanism 4 controls the reinforcement structure 3 to unfold, and then supports the movable frame 22 and the extension frame 21 through the unfolded reinforcement structure 3. When the connecting bridge is subjected to pressure, the distribution range of the pressure is dispersed by the reinforcement structure 3, thereby improving the stability of the overall structure of the connecting bridge and ensuring the driving safety of the catamaran.

[0022] Reference Figure 1 , Figure 3 and Figure 4The reinforcing structure 3 includes a first rod body 31, a second rod body 32, a nitrogen spring 33 and a limiting assembly 34; the first end of the first rod body 31 is hinged to the extension frame 21, and a first slide groove 311 is provided on the first rod body 31; the first end of the second rod body 32 is provided with a first shaft member 321, the second end of the second rod body 32 is hinged to the movable frame 22, and the first shaft member 321 on the second rod body 32 is slidably matched with the first slide groove 311 on the first rod body 31; the nitrogen spring 33 is transmission-connected to the control mechanism 4, the end of the piston rod of the nitrogen spring 33 is hinged to the first shaft member 321, and the nitrogen spring 33 is provided with an electric control system for controlling the extension and retraction of the nitrogen spring 33; the limiting assembly 34 is used to limit the rotation of the second rod body 32.

[0023] The present invention realizes the function of supporting the connecting bridge when the connecting bridge is in an extended state through the first rod body 31, the second rod body 32 and the nitrogen spring 33, and actively controls the extension and contraction of the first rod body 31 and the second rod body 32 through the nitrogen spring 33 with an electronic control system, wherein the electronic control system includes components such as a pressure sensor, a controller and an actuator, wherein the actuator is preferably a solenoid valve, and the electronic control system is electrically connected to the controller. The nitrogen spring 33 with an electronic control system has the advantages of high precision, fast response and high reliability. When the linear drive assembly 23 controls the movable frame 22 to move in a direction away from the extension frame 21, the movable frame 22 drives the second rod 32 to move, and the first shaft 321 on the second rod 32 moves along the first slide groove 311 of the first rod 31. At this time, the nitrogen spring 33 is in a continuously contracted state, and the second rod 32 is restricted by the restriction assembly 34 and cannot rotate around the hinge point with the movable frame 22. Until the connecting bridge is extended to above the threshold, the restriction assembly 34 no longer restricts the rotation of the second rod 32, and the second rod 32 rotates under the elastic force of the nitrogen spring 33, and then the second rod 32 is rotated. The first rod 31 is pulled to rotate, so that the first rod 31 and the second rod 32 form a triangular structure for supporting the extension frame 21 and the movable frame 22. When the first shaft 321 on the second rod 32 slides to the end of the first slide groove 311, the second rod 32 stops rotating, and the nitrogen spring 33 stops extending. Then the controller sends a signal to the electric control system of the nitrogen spring 33, so that the nitrogen spring 33 enters a self-locking state, thereby supporting the first rod 31 and the second rod 32, keeping the first rod 31 and the second rod 32 in an expanded state, supporting the connecting bridge, and improving the stability of the connecting bridge.

[0024] Reference Figure 3-Figure 5: The limiting assembly 34 includes an articulated seat 341 and a second shaft member 342; the articulated seat 341 is arranged on the movable frame 22, and the articulated seat 341 is transmission-connected to the extension frame 21, and the second shaft member 342 is arranged on the articulated seat 341; a second slide groove 322 is provided on the second rod body 32, and a notch is provided at one end of the second slide groove 322 close to the first shaft member 321, and the second shaft member 342 and the second slide groove 322 can be slidably matched in a separable manner; in the working state, when the second shaft member 342 slides to the notch of the second slide groove 322, the second shaft member 342 no longer restricts the rotation of the second rod body 32.

[0025] The present invention realizes the function of limiting the rotation of the second rod 32 before the connecting bridge is extended to the threshold value through the hinge seat 341, the second shaft 342 and the second slide groove 322. When the linear drive assembly 23 controls the movable frame 22 to move in the direction away from the extension frame 21, the movable frame 22 drives the second rod 32 to move, and the first shaft 321 on the second rod 32 moves along the first slide groove 311 of the first rod 31, and the movable frame 22 pulls the hinge seat 341 to move through the control mechanism 4, so that the second shaft 342 on the hinge seat 341 slides along the second slide groove 322. At this time, the nitrogen spring 33 is in a continuously contracted state, and because the second rod 32 is restrained by the second shaft 342, the second rod 32 is restrained by the second shaft 342. 42 and cannot rotate around the hinge point between it and the movable frame 22, until the connecting bridge is extended to above the threshold, the second shaft member 342 slides to the notch of the second slide groove 322, and the rotation of the second rod body 32 is no longer restricted. The second rod body 32 rotates under the elastic force of the nitrogen spring 33, and the second shaft member 342 is separated from the second rod body 32. The second rod body 32 pulls the first rod body 31 to rotate, so that the first rod body 31 and the second rod body 32 form a triangular structure for supporting the extension frame 21 and the movable frame 22.

[0026] Reference Figure 1 , Figure 3 , Figure 5 and Figure 6 :The control mechanism 4 includes a fixed seat 41, a first movable seat 42 and a transmission assembly 43; there are two fixed seats 41, which are respectively arranged on the extension frame 21 and the movable frame 22, and the first rod body 31 and the second rod body 32 are respectively hinged to the two fixed seats 41; a first guide rail 222 is provided on the movable frame 22, at least two first movable seats 42 are provided, both are slidably installed on the first guide rail 222, and the first movable seats 42 are located between the two fixed seats 41; the hinged seat 341 is arranged on the first movable seat 42 closest to the extension frame 21, the support seat 421 is arranged on the other first movable seat 42 without the hinged seat 341, the support seat 421 is provided with a fourth shaft member 4211, and the nitrogen spring 33 is hinged to the fourth shaft member 4211; the movable frame 22 is transmission-connected to the first movable seat 42 through the transmission assembly 43.

[0027] The present invention realizes the function of guiding the movement of the hinge seat 341 and the support seat 421 through the fixed seat 41, the first movable seat 42, the transmission assembly 43 and the first guide rail 222, thereby achieving the effect of controlling the movement trajectory of the nitrogen spring 33 and the hinge seat 341, and cooperating with the transmission assembly 43 to adjust the separation position of the second shaft 342 and the second slide groove 322 through the movement of the movable frame 22. In this embodiment, three first movable seats 42 are provided, and the support seat 421 is provided on the first movable seat 42 between the hinge seat 341 and the fixed seat 41 located on the movable frame 22. When the linear drive assembly 23 controls the movable frame 22 to move in the direction away from the extension frame 21, the movable frame 22 drives the second rod body 32 to move, and the first shaft member 321 on the second rod body 32 moves along the first slide groove 311 of the first rod body 31. At the same time, when the movable frame 22 moves, the movement of the first movable seat 42 is controlled by the transmission assembly 43. The two first movable seats 42 respectively drive the hinge seat 341 and the support seat 421 to move, so that the second shaft member 342 on the hinge seat 341 slides along the second slide groove 322, and the support seat 421 pushes the nitrogen spring 33, so that the nitrogen spring 33 is in a continuous contraction state.

[0028] Reference Figure 1 , Figure 3 , Figure 5 and Figure 6 The transmission assembly 43 includes a first connecting rod 431, a plurality of second connecting rods 432, a third connecting rod 433, a plurality of second movable seats 434 and a mounting seat 435; two first connecting rods 431 are provided; the first connecting rod 431, a plurality of second connecting rods 432, the first connecting rod 431 and the third connecting rod 433 are hinged in sequence. The movable frame 22 is also provided with two mounting seats 435, which are respectively located on both sides of the first guide rail 222. Both mounting seats 435 can slide in a direction perpendicular to the length of the first guide rail 222. Both sides of the movable frame 22 are provided with extension rods, and the mounting seats 435 are slidably matched with the extension rods and arranged on the movable frame 22; the mounting seats 435 are provided with a second guide rail 4351, and the second movable seat 434 is slidably mounted on the second guide rail 4351 along the length direction of the first guide rail 222. The two ends of one of the first connecting rods 431 are respectively hinged to the fixed seat 41 and the second movable seat 434 on the movable frame 22; the two ends of the other first connecting rod 431 are respectively hinged to the second movable seat 434 and the third connecting rod 433, and the hinge point is located on the first movable seat 42; multiple second connecting rods 432 are hingedly connected between the two first connecting rods 431, and the hinge point is located on the second movable seat 434; the center rotation of multiple second connecting rods 432 is set on the first movable seat 42; the two ends of the third connecting rod 433 are respectively connected to the first movable seat 42 close to the extension frame 21 and the fixed seat 41 located on the extension frame 21.

[0029] The present invention controls the movement of the nitrogen spring 33 and the hinge seat 341, compresses the nitrogen spring 33 while extending the movable frame 22, and controls the movement of the hinge seat 341. Through the connection of the first connecting rod 431 and the second connecting rod 432, the spacing between the fixed frame 2 and the plurality of first movable seats 42 is controlled to remain consistent, thereby controlling the dispersion of the plurality of first movable seats 42. In the working state, when the linear drive assembly 23 controls the movable frame 22 to extend, the movable frame 22 pulls the first movable seat 42 hinged thereto through the third connecting rod 433, and at the same time pulls the first connecting rod 431 hinged thereto. Since the first connecting rod 431 away from the extension frame 21 is hinged to the fixed seat 41 to form a fixed connection point, the subsequent first connecting rod 431 and the second connecting rod 432 are then pulled. The first movable seat 42 pulls the second connecting rod 432 when moving, and the plurality of second movable seats 434 are guided by the second guide rail 4351, thereby limiting the rotation of the plurality of second connecting rods 432 to remain consistent, thereby controlling the spacing between the plurality of first movable seats 42.

[0030] Reference Figure 1 and Figure 6 : The extension frame 21 is provided with a locking assembly 24 for limiting the movement of the movable frame 22; the movable frame 22 is provided with a control assembly 25 for releasing the locking assembly 24 from moving the movable frame 22.

[0031] The present invention realizes the function of stabilizing the movable frame 22 through the locking assembly 24 and the control assembly 25, so as to further fix the connecting bridge when the length of the connecting bridge exceeds the threshold, so as to prevent the catamaran from self-expansion of the connecting bridge due to the force, and further improve the stability of the connecting bridge. The built-in rotary drive of the fixed frame 2 is preferably a servo motor with self-locking performance. When the connecting bridge is telescopically adjusted, the movable frame 22 is controlled to move by the linear drive assembly 23. After the adjustment is completed, the movable frame 22 is fixed by the self-locking ability of the screw 232 and the rotary drive. When the connecting bridge is extended to above the threshold, due to the long length of the connecting bridge and the shortened length of the matching section of the movable frame 22 and the extension frame 21, the connecting bridge will still be unstable. For this reason, a reinforcing structure 3 is provided to support the connecting bridge, and the movable frame 22 is fixed by the locking assembly 24 to prevent the length of the connecting bridge from changing under the pressure during driving.

[0032] Reference Figure 6-Figure 8: There are multiple locking assemblies 24, and the multiple locking assemblies 24 are equidistantly arranged along the extension direction of the extension frame 21; the locking assembly 24 includes a locking block 241, a fixing plate 242 and an elastic member 243; the fixing plate 242 is fixedly arranged on the extension frame 21; the locking block 241 is arranged above the fixing plate 242, and the two ends of the elastic member 243 are respectively connected to the locking block 241 and the fixing plate 242; the locking block 241 is slidably installed on the extension frame 21 under the action of the elastic member 243; a locking groove 223 cooperating with the locking block 241 is opened on the movable frame 22.

[0033] The present invention realizes the function of fixing the movable frame 22 through the locking block 241, the fixing sheet 242, the elastic member 243 and the locking groove 223. At least two locking grooves 223 are provided on the movable frame 22, and the limiting stability of the locking assembly 24 is improved by plugging and matching multiple locking grooves 223 and multiple locking blocks 241. As the connecting bridge is extended, when the length of the connecting bridge exceeds the threshold, the second rod body 32 rotates, and the control assembly 25 no longer releases the locking of the locking assembly 24. When the locking block 241 is aligned with the locking groove 223, the locking block 241 extends under the elastic force of the elastic member 243, so that the locking block 241 is plugged and matched with the locking groove 223, and then the movement of the movable frame 22 is limited by the locking block 241 and the locking groove 223.

[0034] Reference Figure 6 , Figure 7 , Fig. 9 and Fig.10 : The control assembly 25 includes a push block 251 and a guide rod 252; the push block 251 is slidably disposed on the movable frame 22, and the push block 251 is located in the locking groove 223; the guide rod 252 is fixedly connected to the push block 251 and slidably cooperates with the movable frame 22.

[0035] The present invention realizes the function of controlling the cooperation between the locking block 241 and the locking groove 223 through the push block 251 and the guide rod 252. Figure 7In the figure, only three groups of locking components 24 on the extension frame 21 are shown to cooperate with the movable frame 22. When the push block 251 moves toward the direction close to the extension frame 21, the locking block 241 is pushed out of the locking groove 223, and the locking block 241 is restricted from plugging and cooperating with the locking groove 223, thereby preventing the locking component 24 from affecting the movement of the movable frame 22. When the length of the connecting bridge does not exceed the threshold, the self-locking ability of the screw rod 232 and the rotary drive is used to restrict the movement of the movable frame 22. When the length exceeds the threshold, the second rod body 32 swings, and the second rod body 32 no longer squeezes the push block 251, while the push block 251 and the connecting frame 253 still fill the locking groove 223 due to the effect of gravity. When the locking block 241 is aligned with the locking groove 223, the locking block 241 pushes the locking block 241 upward under the elastic force of the elastic member 243, so that the locking block 241 is plugged into the locking groove 223 and the push block 251 is completely pushed out of the locking groove 223, thereby limiting the movement of the movable frame 22.

[0036] Reference Figure 6 , Figure 7 , Fig. 9 and Fig.10 : A connecting frame 253 is provided on the push block 251, and a cross plate 254 is provided at the end of the connecting frame 253. The connecting frame 253 and the cross plate 254 are located below the second rod body 32. The third connecting rod 433 passes through the frame formed by the connecting frame 253 and the cross plate 254, and the connecting frame 253 is slidably matched with the movable frame 22, and the movement of the connecting frame 253 and the cross plate 254 is restricted by the frame; when the second rod body 32 is in the recovered state, the cross plate 254 and the connecting frame 253 are squeezed by the second rod body 32 and move toward the locking block 241, and at the same time the locking groove 223 is filled by the push block 251, and the locking state of the locking block 241 in the locking groove 223 is released by the push block 251.

[0037] The present invention realizes the function of controlling the extension and retraction of the push block 251 through the second rod body 32 through the connecting frame 253 and the cross plate 254. When the length of the connecting bridge exceeds the threshold, the second shaft member 342 separates from the second slide groove 322 from the notch of the second slide groove 322, and then the second rod body 32 stretches under the elastic force of the nitrogen spring 33, so that the second rod body 32 is separated from the cross plate 254, and the cross plate 254 and the push block 251 are no longer subjected to the thrust, and then when the locking block 241 is aligned with the locking groove 223, the locking block 241 extends under the elastic force of the elastic member 243, squeezes and pushes the push block 251, so that the push block 251 is pushed away from the locking groove 223 by the elastic force of the elastic member 243, and the locking block 241 is smoothly plugged and matched with the locking groove 223 to limit the movement of the movable frame 22.

[0038] Reference Figure 1 and Figure 2A catamaran comprises a split hull 1, wherein the split hull 1 is connected by an extension cabin, and when the connecting bridge is extended, the split hull 1 is driven to extend synchronously.

[0039] In addition, the catamaran is double-headed and symmetrical left and right, front and back; after using the above-mentioned adjustable high-stability connecting bridge, it can carry a large-capacity cabin.

[0040] The above embodiments only express one or several implementation modes of the present invention, and the description thereof is relatively specific and detailed, but it cannot be understood as limiting the scope of the present invention. It should be pointed out that, for a person of ordinary skill in the art, several variations and improvements can be made without departing from the concept of the present invention, and these all belong to the protection scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the attached claims.

Claims

1. An adjustable high-stability connecting bridge, characterized in that: The invention comprises a fixed frame (2), on which a linear drive assembly (23), an extension frame (21) and a movable frame (22) are arranged; the extension frame (21) is connected to the fixed frame (2), and a support plate (211) for supporting a cabin is arranged on the extension frame (21); the movable frame (22) is slidably matched with the extension frame (21), and a movable plate (221) slidably matched with the support plate (211) is arranged on the movable frame (22); the linear drive assembly (23) is used to control the movement of the movable frame (22); the fixed frame (2) is provided with a reinforcement structure (3) for connecting to the movable frame (22); the movable frame (22) is provided with a control mechanism (4) for controlling the extension of the reinforcement structure (3); in a working state, when the linear drive assembly (23) When the movable frame (22) is controlled to extend and the length of the connecting bridge exceeds a threshold value, the control mechanism (4) controls the reinforcing structure (3) to extend to an extended state; when the linear drive assembly (23) controls the movable frame (22) to retract and the length of the connecting bridge is below the threshold value, the control mechanism (4) controls the reinforcing structure (3) to retract to a retracted state; the reinforcing structure (3) comprises a first rod body (31), a second rod body (32), a nitrogen spring (33) and a limiting assembly (34); a first end of the first rod body (31) is hinged to the extension frame (21), and a first slide groove (311) is provided on the first rod body (31); a first end of the second rod body (32) is provided with a first shaft member (321), and a second end of the second rod body (32) is hinged to the movable frame (22); The first shaft member (321) on the second rod body (32) is slidably matched with the first slide groove (311) on the first rod body (31); the nitrogen spring (33) is transmission-connected to the control mechanism (4); the end of the piston rod of the nitrogen spring (33) is hinged to the first shaft member (321); and the nitrogen spring (33) is provided with an electric control system for controlling the extension and retraction of the nitrogen spring (33); the limiting component (34) is used to limit the rotation of the second rod body (32); the limiting component (34) comprises an articulated seat (341) and a second shaft member (342); the articulated seat (341) is arranged on the movable frame (22), the second shaft member (342) is arranged on the articulated seat (341), and the articulated seat (341) is transmission-connected to the extension frame (21); the second rod body ( A second slide groove (322) is provided on the extension frame (21), and a notch is provided at one end of the second slide groove (322) close to the first shaft member (321), and the second shaft member (342) and the second slide groove (322) are slidably matched to be separable; in a working state, when the second shaft member (342) slides to the notch of the second slide groove (322), the second shaft member (342) no longer restricts the rotation of the second rod body (32); the control mechanism (4) comprises a fixed seat (41), a first movable seat (42) and a transmission assembly (43); two fixed seats (41) are provided, and the two fixed seats (41) are respectively arranged on the extension frame (21) and the movable frame (22), and the first rod body (31) and the second rod body (32) are respectively hinged to the two fixed seats (41);At least two first movable seats (42) are provided, a first guide rail (222) is provided on the movable frame (22), and the first movable seat (42) is slidably mounted on the first guide rail (222); a hinge seat (341) is provided on the first movable seat (42) close to the extension frame (21), and a support seat (421) is provided on the first movable seat (42) away from the extension frame (21), and a fourth shaft member (4211) is provided on the support seat (421), and the nitrogen spring (33) is hingedly connected to the fourth shaft member (4211); the movable frame (22) is transmission-connected to the first movable seat (42) via a transmission assembly (43); the transmission assembly (43) comprises a first connecting rod (431), a second connecting rod (432), a third connecting rod (433), a second movable seat (434) and a mounting seat (435); two first connecting rods (431) are provided, one of which is The two ends are respectively hinged to the fixed seat (41) and the second movable seat (434) on the movable frame (22); the two ends of another first connecting rod (431) are respectively hinged to the second movable seat (434) and the third connecting rod (433), and the hinge point is located on the first movable seat (42); the second connecting rod (432) is rotatably arranged on the first movable seat (42), and the two ends of the second connecting rod (432) are respectively hinged to the two second movable seats (434); the two ends of the third connecting rod (433) are respectively connected to the first movable seat (42) close to the extension frame (21) and the fixed seat (41) located on the extension frame (21); two mounting seats (435) are provided, the mounting seats (435) are slidably arranged on the movable frame (22), the mounting seats (435) are provided with a second guide rail (4351), and the second movable seat (434) is slidably mounted on the second guide rail (4351). ; 2. The adjustable high-stability connecting bridge according to claim 1, characterized in that: The extension frame (21) is provided with a locking assembly (24) for limiting the movement of the movable frame (22); the movable frame (22) is provided with a control assembly (25) for releasing the locking assembly (24) from controlling the movement of the movable frame (22).

3. The adjustable high-stability connecting bridge according to claim 2, characterized in that: A plurality of locking assemblies (24) are provided, and the plurality of locking assemblies (24) are equidistantly arranged along the extension direction of the extension frame (21); the locking assemblies (24) comprise a locking block (241), a fixing plate (242) and an elastic member (243); the locking block (241) is slidably mounted on the extension frame (21); the fixing plate (242) is fixedly mounted on the extension frame (21); two ends of the elastic member (243) are respectively connected to the locking block (241) and the fixing plate (242); and a locking groove (223) cooperating with the locking block (241) is provided on the movable frame (22).

4. The adjustable high-stability connecting bridge according to claim 3, characterized in that: The control assembly (25) comprises a push block (251) and a guide rod (252); the push block (251) is slidably disposed on the movable frame (22), and the push block (251) is located in the locking groove (223); the guide rod (252) is disposed on the push block (251), and the guide rod (252) is slidably matched with the movable frame (22).

5. The adjustable high-stability connecting bridge according to claim 4, characterized in that: A connecting frame (253) is provided on the push block (251), a transverse plate (254) is provided at the end of the connecting frame (253), and the connecting frame (253) and the transverse plate (254) are located below the second rod body (32); when the second rod body (32) is in a retracted state, the transverse plate (254) and the connecting frame (253) are in a retracted state due to the squeezing action of the second rod body (32); when the connecting frame (253) is in a retracted state, the locking groove (223) is filled by the push block (251), and the locked state is released.

6. A catamaran, using an adjustable high-stability connecting bridge according to any one of claims 1 to 5, characterized in that: The invention comprises a split hull (1), wherein the split hull (1) is connected by an extension cabin, and when the connecting bridge is extended, the split hull (1) is driven to extend synchronously.

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