CN212714775U

CN212714775U - Wharf truss structure capable of adjusting height of freeboard

Info

Publication number: CN212714775U
Application number: CN202021294792.5U
Authority: CN
Inventors: 朱静; 姜舒鸿
Original assignee: Wuxi Navigation Project Co ltd
Current assignee: Wuxi Navigation Project Co ltd
Priority date: 2020-07-04
Filing date: 2020-07-04
Publication date: 2021-03-16
Anticipated expiration: 2030-07-04

Abstract

The utility model belongs to the technical field of the technique of harbour facility and specifically relates to a truss structure is used to pier that relates to an adjustable freeboard height, it includes first truss and second truss, first truss is located second truss below, is equipped with shore mechanism and drive mechanism between first truss and the second truss, shore mechanism includes that the rotating turret establishes a plurality of threaded rods on first truss, drive mechanism includes that the rotating turret establishes driving shaft, cover on first truss and establishes that the driving shaft, cover establish driving wheel, cover establish on the driving shaft from the driving wheel on the threaded rod and around establishing the drive belt on driving wheel and follow driving wheel, the driving shaft is parallel with the threaded rod. The utility model discloses have height-adjustable, the big ship of the different freeboard heights of adaptation, the passenger of being convenient for is from top to bottom and cargo handling's effect.

Description

Wharf truss structure capable of adjusting height of freeboard

Technical Field

The utility model belongs to the technical field of the technique of harbour facility and specifically relates to a truss structure is used to pier of adjustable topside height is related to.

Background

The wharf is a building which is specially used by seasides and rivers for mooring steamships or ferries and allowing passengers to get on and off and goods to be loaded and unloaded. The freeboard height of the dock needs to match the freeboard height of the vessel in order to facilitate passengers getting on and off and cargo handling. For gravity, high pile and sheet pile wharfs, the freeboard height of the wharf is directly affected by water level fluctuations. For a pontoon dock, the freeboard height is often constant.

Chinese patent with publication number CN209099290U discloses a truss structure for wharfs, which comprises a truss, the truss is composed of support rods, an upper support surface, diagonal braces, a lower support surface and connecting rods, the upper support surface and the lower support surface are rectangles formed by connecting a plurality of stainless steel rods end to end, a plurality of parallel connecting rods are uniformly and fixedly installed in the upper support surface, a plurality of vertical support rods are uniformly and fixedly installed at the edge between the upper support surface and the lower support surface, and a plurality of diagonal braces are fixedly installed in the upper support surface and the lower support surface; a plurality of buoyancy tanks are uniformly and fixedly arranged below the truss through bolts.

The truss structure for the wharf is an improvement of a common pontoon wharf, and compared with a steel structure frame formed by directly laying channel steel or I-steel on a pontoon, the truss structure can effectively improve the freeboard height of the pontoon wharf and is suitable for docking a high-freeboard ship.

However, in the actual use process, after the construction of the wharf using the truss structure is completed, the freeboard height of the wharf is determined. When large ships with different freeboards are parked, the freeboards of the wharf cannot be correspondingly adjusted, and inconvenience is caused in the processes of passengers getting on and off and cargo loading and unloading.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing a not enough to prior art exists, the utility model aims at providing a truss structure is used to pier of adjustable freeboard height, it has height-adjustable, and the big ship of the different freeboard heights of adaptation is convenient for the passenger from top to bottom and the effect of goods loading and unloading.

The above object of the present invention is achieved by the following technical solutions:

the utility model provides a truss structure is used to pier of adjustable topsides height, includes first truss and second truss, first truss is located second truss below, is equipped with shore mechanism and drive mechanism between first truss and the second truss, shore mechanism includes that the rotation erects a plurality of threaded rods on first truss, drive mechanism includes that the rotation erects driving shaft, cover on first truss establish the driving shaft, establish the driving wheel, the cover of establishing on the driving shaft establish the driven wheel on the threaded rod and around establishing the drive belt on driving wheel and driven wheel, the driving shaft is parallel with the threaded rod.

By adopting the technical scheme, manpower or a motor is used as a power source, and the top bracing mechanism is driven to brace the second truss through transmission of the transmission mechanism, so that the overall height of the first truss and the second truss can be changed; when the driving shaft rotates under the drive of manpower or a motor, the driving wheel rotates along with the driving shaft, and then the driving wheel pulls each driven wheel to rotate through the transmission belt, and finally the threaded rod rotates; the height is adjustable, and the big ship of different freeboards height of adaptation is convenient for passenger to get on and off and cargo handling.

The present invention may be further configured in a preferred embodiment as: the top supporting mechanism further comprises a lower wedge block arranged on the first truss in pairs and an upper wedge block arranged below the second truss in pairs, one side, opposite to the top end of the lower wedge block, is provided with an upper inclined plane, the lower wedge block is arranged on the first truss in a sliding mode, one side, opposite to the bottom end of the upper wedge block, is provided with a lower inclined plane, the upper wedge block is abutted to the upper inclined plane on the lower wedge block through the lower inclined plane, the threaded rod is arranged in the horizontal direction, one end of the threaded rod is provided with left-handed threads, the other end of the threaded rod is provided with right-handed threads, and two ends of the threaded rod.

By adopting the technical scheme, the threaded rod is in threaded fit with the two lower wedges through the left-handed thread and the right-handed thread respectively, and the two lower wedges can be driven to approach or depart from each other when the threaded rod rotates; when the two lower wedges are close to each other, the two upper wedges are extruded, and the contact surface is an inclined surface, so that the two upper wedges are lifted to jack the second truss; when the two lower wedge blocks deviate from each other, the upper wedge block and the second truss naturally sink.

The present invention may be further configured in a preferred embodiment as: the upper inclined plane is provided with a groove, the lower inclined plane is provided with a lug, and the lug is in sliding fit with the groove.

Through adopting above-mentioned technical scheme, in the lug embedding recess, make upper wedge block and lower wedge block align all the time, the cooperation is more stable.

The present invention may be further configured in a preferred embodiment as: the upper inclined plane is embedded with a lower cushion block, and the lower inclined plane is embedded with an upper cushion block.

By adopting the technical scheme, the upper wedge block and the lower wedge block can be made of common steel, the upper cushion block and the lower cushion block are made of hard alloy steel, the cost is effectively controlled under the condition of prolonging the service life, or the upper cushion block and the lower cushion block are made of steel with high finish degree, and the cost is effectively controlled under the condition of reducing the friction resistance.

The present invention may be further configured in a preferred embodiment as: the threaded rod is arranged along the vertical direction, the jacking mechanism further comprises a threaded cylinder sleeved on the threaded rod, and the threaded cylinder is connected with the second truss.

Through adopting above-mentioned technical scheme, when the threaded rod was rotatory, each screw cylinder and second truss were unable to rotate, moved for the threaded rod along the axis direction of threaded rod, and the moving direction is decided by the direction of rotation of threaded rod.

The present invention may be further configured in a preferred embodiment as: and a horizontal cross beam is arranged between the thread cylinders.

Through adopting above-mentioned technical scheme, set up horizontal beam and connect each screw thread section of thick bamboo, make the screw thread section of thick bamboo share the atress each other, increase the joint strength between second truss and the first truss.

The present invention may be further configured in a preferred embodiment as: the driving shaft is arranged on the first truss in a rotating mode and is parallel to the driving shaft, a first gear is sleeved on the driving shaft, a handle is connected to one end of the driving shaft, a second gear is sleeved on the driving shaft and is meshed with the first gear, and the diameter of a reference circle of the second gear is larger than that of the first gear.

Through adopting above-mentioned technical scheme, with the help of gear one and gear two transmissions, operating personnel can rotate the handle with less power, adjusts the whole height of first truss and second truss fast.

The present invention may be further configured in a preferred embodiment as: the first truss is provided with a plurality of vertical guide cylinders, guide rods penetrate through the guide cylinders in a sliding mode, and the top ends of the guide rods are connected with the second truss.

Through adopting above-mentioned technical scheme, set up guide cylinder and guide bar, can effectively share the horizontal shear that the shore mechanism received, increase the joint strength between first truss and the second truss.

To sum up, the utility model discloses a following at least one useful technological effect:

1. the height is adjustable, and the ship is suitable for large ships with different freeboards, so that passengers can get on and off the ship and cargo can be loaded and unloaded conveniently;

2. the guide cylinder and the guide rod can effectively share the horizontal shearing force borne by the top bracing mechanism, and the connecting strength between the first truss and the second truss is increased.

Drawings

FIG. 1 is a schematic view of the overall structure of embodiment 1;

FIG. 2 is a longitudinal sectional view for embodying the jack-up mechanism in embodiment 1;

FIG. 3 is a transverse sectional view for embodying the jack-up mechanism in embodiment 1;

FIG. 4 is a schematic structural view for embodying the transmission mechanism in embodiment 1;

fig. 5 is a schematic structural view for embodying the jack-up mechanism in embodiment 2.

In the figure, 1, a first truss; 2. a second truss; 3. a shoring mechanism; 4. a transmission mechanism; 5. a buoyancy tank; 11. a guide cylinder; 12. a lower mounting plate; 13. a slide rail; 14. erecting a rod; 15. a cross bar; 16. a longitudinal bar; 17. bracing; 21. a guide bar; 22. an upper mounting plate; 31. a threaded rod; 32. a lower wedge block; 33. an upper wedge block; 34. a threaded barrel; 35. a cross beam; 321. an upper inclined plane; 322. a groove; 323. a lower cushion block; 331. a lower inclined plane; 332. a bump; 333. an upper cushion block; 41. a drive shaft; 42. a driving wheel; 43. a driven wheel; 44. a transmission belt; 45. a drive shaft; 46. a first gear; 47. a handle; 48. and a second gear.

Detailed Description

The present invention will be described in further detail with reference to the accompanying drawings.

Example 1:

referring to fig. 1, for the utility model discloses a pier truss structure of adjustable freeboard, including first truss 1, second truss 2, shore mechanism 3, drive mechanism 4 and flotation tank 5. The second truss 2 is positioned above the first truss 1, and the two trusses have the same structure and are composed of upright rods 14, cross rods 15, longitudinal rods 16 and inclined struts 17. The top bracing mechanism 3 is arranged between the first truss 1 and the second truss 2 and is linked with the transmission mechanism 4. The pontoons 5 are arranged in pairs and bolted to the lower surface of the first girder 1.

Referring to fig. 2 and 3, the jack mechanism 3 includes sets of an upper wedge 33, a lower wedge 32, and a threaded rod 31. The upper wedges 33 are arranged in pairs and are bolted to the lower surface of the second truss 2 through the upper mounting plate 22, and the two sides of the bottom ends of the upper wedges 33, which are opposite, are provided with lower inclined surfaces 331. Lower wedges 32 are arranged in pairs and connected with the upper surface of the first truss 1 through a lower mounting plate 12, an upper inclined surface 321 is arranged on one side opposite to the top ends of the two lower wedges 32, and the lower wedges 32 are abutted to a lower inclined surface 331 on the upper wedge 33 through the upper inclined surfaces 321. In addition, the lower mounting plate 12 is bolted with the first truss 1, the upper surface of the lower mounting plate 12 is welded with a T-shaped slide rail 13, the slide rail 13 is horizontal, the slide rail 13 is arranged along the connecting line direction of the two lower wedges 32, and the lower wedges 32 are arranged on the slide rail 13 in a sliding manner.

Referring to fig. 2 and 3, the threaded rod 31 is parallel to the slide rail 13, and the threaded rod 31 is rotatably mounted on the lower mounting plate 12. The threaded rod 31 simultaneously penetrates through the two lower wedges 32, and left-hand threads are formed at one end of the threaded rod 31, right-hand threads are formed at the other end of the threaded rod 31, and the left-hand threads and the right-hand threads are respectively in threaded fit with the two lower wedges 32.

By turning the threaded rod 31, the two lower wedges 32 can be moved toward or away from each other. When the two lower wedges 32 are brought closer to each other, the upper wedge 33 is pressed to lift the upper wedge 33, so that the second truss 2 is jacked up, and the height of the wharf freeboard is increased. When the two lower wedges 32 are moved away from each other, the upper wedge 33 and the second girder 2 fall down and the freeboard of the quay is reduced.

Referring to fig. 3, in order to stably fit the lower wedge 32 and the upper wedge 33, a groove 322 is formed on the upper inclined surface 321. The axis of the groove 322 is in the same vertical plane with the axis of the threaded rod 31, and one end of the groove 322 is communicated with the top surface of the lower wedge block 32, and the other end is communicated with the side surface of the lower wedge block 32. Correspondingly, a protrusion 332 is integrally formed on the lower inclined surface 331, and the protrusion 332 is slidably engaged with the groove 322.

Referring to fig. 3, a lower cushion block 323 is embedded in the middle of the upper inclined plane 321, and an upper cushion block 333 is embedded in the middle of the lower inclined plane 331. The lower block 323 and the upper block 333 are each omega-shaped, limited by the recess 322 and the projection 332.

The lower cushion block 323 and the upper cushion block 333 can be made of hard alloy steel, and have good wear resistance, so that the lower wedge block 32 and the upper wedge block 33 have long service life. The lower cushion block 323 and the upper cushion block 333 can also be made of steel with high smoothness, so that the friction resistance is small during sliding, and the force required for lifting the second truss 2 is reduced.

Referring to fig. 4, the transmission mechanism 4 is composed of a handle 47, a transmission shaft 45, a first gear 46, a second gear 48, a driving shaft 41, a driving wheel 42, a transmission belt 44 and a driven wheel 43, which are connected in sequence.

Referring to fig. 4, the driving shaft 45 and the driving shaft 41 are parallel to the threaded rod 31 and rotatably mounted on the first truss 1. The handle 47 is bolted and fixed with the end face of the transmission shaft 45, and the first gear 46 is sleeved on the transmission shaft 45 and rotates synchronously with the transmission shaft 45. The second gear 48 is sleeved on the driving shaft 41 and rotates synchronously with the driving shaft 41. In addition, the second gear 48 has a larger pitch circle diameter than the first gear 46, and the two are in mesh.

The operator rotates the handle 47 to rotate the transmission shaft 45. The driving shaft 41 rotates along with the driving shaft 45 through the transmission of the first gear 46 and the second gear 48.

Referring to fig. 4, the driving pulley 42 is fitted over the driving shaft 41 to rotate in synchronization with the driving shaft 41. The driven wheel 43 is sleeved on the threaded rod 31 and rotates synchronously with the threaded rod 31. The transmission belt 44 passes around the driving pulley 42 and the driven pulleys 43, so that the driving pulley 42 can drive the driven pulleys 43 to rotate when rotating along with the driving shaft 41, and further drive the threaded rods 31 to synchronously rotate.

The driving wheel 42 and the driven wheel 43 can be selected from chain wheels, and the corresponding transmission belt 44 is a chain; the driving wheel 42 and the driven wheel 43 can also be belt pulleys, and the corresponding transmission belt 44 is a belt; the driving pulley 42 and the driven pulley 43 can also be synchronous pulleys, and the corresponding transmission belt 44 is a synchronous belt.

Alternatively, the drive shaft 41 may be directly driven by a servo motor without providing the transmission shaft 45 or the handle 47.

Referring to fig. 4, in order to increase the connection strength between the first truss 1 and the second truss 2 and reduce the transverse shear force applied to the shoring mechanism 3, a plurality of guide cylinders 11 are bolted to the upper surface of the first truss 1, and guide rods 21 are correspondingly bolted to the lower surface of the second truss 2. The axis of the guide cylinder 11 is vertical, the axis of the guide rod 21 is superposed with the guide cylinder 11, and the two are in sliding insertion fit.

The implementation principle of the embodiment is as follows:

the operator turns the handle 47, which causes the threaded rod 31 to rotate, bringing the two lower wedges 32 closer together and the second girder 2 up by means of the upper wedge 33. The overall height of the first truss 1 and the second truss 2 can be adjusted to adapt to large ships with different freeboards, so that passengers can get on and off the large ships conveniently and goods can be loaded and unloaded conveniently.

Example 2:

the difference from embodiment 1 is that, referring to fig. 5, the jack mechanism 3 is composed of only the threaded rod 31 and the threaded cylinder 34, and the threaded rod 31 is disposed in the vertical direction.

Referring to fig. 5, the bottom end of the threaded rod 31 is rotatably mounted on the first truss 1, the top of the threaded rod is in threaded fit with the threaded cylinder 34, and the driven wheel 43 is sleeved on the bottom of the threaded rod 31.

Referring to fig. 5, the top ends of the threaded cylinders 34 are bolted to the second truss 2, and a cross beam 35 is further arranged between two adjacent threaded cylinders 34. The cross beam 35 is arranged along the horizontal direction, and the tail end of the cross beam 35 is fixedly welded with the bottom of the outer side wall of the threaded cylinder 34.

The implementation principle of the embodiment is as follows:

when the threaded rod 31 is driven by the driven wheel 43 to rotate, each threaded cylinder 34 cannot rotate and can only lift in the vertical direction, so that the overall height of the first truss 1 and the second truss 2 can be adjusted.

The embodiment of this specific implementation mode is the preferred embodiment of the present invention, not limit according to this the utility model discloses a protection scope, so: all equivalent changes made according to the structure, shape and principle of the utility model are covered within the protection scope of the utility model.

Claims

1. The utility model provides a truss structure for pier of adjustable freeboard which characterized in that: including first truss (1) and second truss (2), first truss (1) is located second truss (2) below, is equipped with between first truss (1) and second truss (2) shore mechanism (3) and drive mechanism (4), shore mechanism (3) include a plurality of threaded rods (31) that the rotating turret established on first truss (1), drive mechanism (4) establish driving shaft (41) on first truss (1) including the rotating turret, establish driving wheel (42) on driving shaft (41), the cover establish driven wheel (43) on threaded rod (31) and around establishing driving wheel (42) and driven drive belt (44) on driven wheel (43), driving shaft (41) are parallel with threaded rod (31).

2. The truss structure for wharfs with adjustable freeboard according to claim 1, wherein: the jacking mechanism (3) further comprises a lower wedge block (32) arranged on the first truss (1) in pairs and an upper wedge block (33) arranged below the second truss (2) in pairs, one side, opposite to the top end, of the lower wedge block (32) is provided with an upper inclined plane (321), the lower wedge block (32) is arranged on the first truss (1) in a sliding mode, one side, opposite to the bottom end, of the upper wedge block (33) is provided with a lower inclined plane (331), the upper wedge block (33) is abutted to the upper inclined plane (321) on the lower wedge block (32) through the lower inclined plane (331), the threaded rod (31) is arranged in the horizontal direction, one end of the threaded rod (31) is provided with left-handed threads, the other end of the threaded rod is provided with right-handed threads, and two ends of the threaded rod (31.

3. The truss structure for wharfs with adjustable freeboard according to claim 2, wherein: the upper inclined plane (321) is provided with a groove (322), the lower inclined plane (331) is provided with a convex block (332), and the convex block (332) is in sliding fit with the groove (322).

4. The truss structure for wharfs with adjustable freeboard according to claim 2, wherein: and a lower cushion block (323) is embedded in the upper inclined plane (321), and an upper cushion block (333) is embedded in the lower inclined plane (331).

5. The truss structure for wharfs with adjustable freeboard according to claim 1, wherein: threaded rod (31) set up along vertical direction, shore mechanism (3) still including establishing a screw thread section of thick bamboo (34) on threaded rod (31), screw thread section of thick bamboo (34) link to each other with second truss (2).

6. The truss structure for wharfs with adjustable freeboard according to claim 5, wherein: and a horizontal cross beam (35) is arranged between the thread cylinders (34).

7. The truss structure for wharfs with adjustable freeboard according to claim 1, wherein: first truss (1) is gone up the rotation and is erect transmission shaft (45), transmission shaft (45) are on a parallel with driving shaft (41) and set up, and the cover is equipped with gear one (46) on transmission shaft (45), and a termination of transmission shaft (45) has handle (47), the cover is equipped with gear two (48) on driving shaft (41), gear two (48) and gear one (46) meshing, and the pitch circle diameter of gear two (48) is greater than gear one (46).

8. The truss structure for wharfs with adjustable freeboard according to claim 1, wherein: the truss is characterized in that a plurality of vertical guide cylinders (11) are arranged on the first truss (1), guide rods (21) are arranged in the guide cylinders (11) in a sliding and penetrating mode, and the top ends of the guide rods (21) are connected with the second truss (2).