Outfitting piece assembly clearance compensation connecting structure

By using the circumferential clearance fit between the positioning seat and the clearance hole, and the double ball joint connection structure, the assembly deviation problem between the outfitting column and the hull mounting seat was solved, achieving efficient and stable outfitting installation and improving shipbuilding efficiency and connection reliability.

CN121822757APending Publication Date: 2026-04-10JIANGMEN JINYUE METAL MANUFACTURING CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2026-03-11
Publication Date
2026-04-10

AI Technical Summary

Technical Problem

During shipbuilding, positional and coaxiality deviations occur between outfitting column and hull mounting base due to processing, welding deformation, and other reasons, resulting in assembly gaps. Existing methods affect assembly efficiency, damage the hull structure, and are difficult to adapt to multi-directional deviations.

Method used

The circumferential clearance fit between the positioning seat and the clearance hole is adopted. Through the double ball joint connection and the guide shaft linear bearing, the positioning seat can be adjusted horizontally in all directions. Combined with the gear and rack linkage locking structure, the outfitting parts can be accurately connected and have a long-term stable connection.

Benefits of technology

No on-site secondary processing is required, which improves assembly efficiency, ensures positioning accuracy and long-term stability, prevents assembly loosening, and shortens the ship construction cycle.

✦ Generated by Eureka AI based on patent content.

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Abstract

The fitting-out part assembling clearance compensation connecting structure comprises a mounting base, the mounting base comprises a first mounting panel and a second mounting panel which are arranged in a vertically spaced mode, and a receding hole is formed in the first mounting panel in a penetrating mode; a positioning seat capable of being in butt joint installation with an outfitting piece stand column is arranged on the first installation panel corresponding to the position in the receding hole, a gap is reserved between the positioning seat and the receding hole along the circumference, and a connecting structure connected with the positioning seat is arranged on the second installation panel. And the positioning seat can perform horizontal adjusting displacement movement relative to the abdicating hole through the connecting structure.
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Description

Technical Field

[0001] This invention specifically relates to a connection structure for compensating assembly gaps in outfitting components. Background Technology

[0002] In shipbuilding, outfitting installation is one of the core processes. Pillar-type outfitting components, such as railings, handrails, equipment supports, and compartment partition pillars, all need to be fixedly connected to the hull structure via mounting brackets. Due to multiple factors, including welding deformation of the hull structure, component machining tolerances, and prefabrication deviations of outfitting components, positional and coaxiality deviations can easily occur between the outfitting pillars and the pre-installed mounting brackets on the hull. This results in assembly gaps, affecting the smooth docking and installation of the outfitting components.

[0003] Currently, the industry standard for addressing the aforementioned assembly deviations and gaps involves drilling mounting holes on-site, trimming and grinding components, adding adjusting shims, or performing secondary welding and repositioning of the mounting base. However, these methods have limitations in practical application: First, the on-site secondary processing workload is substantial, impacting outfitting and assembly efficiency and affecting the overall shipbuilding cycle. Second, on-site trimming and welding operations can damage the original anti-corrosion coating of the hull structure, increasing the cost and difficulty of subsequent anti-corrosion treatment, and potentially affecting the strength of the hull structure. Third, shim compensation only achieves small-scale dimensional compensation, making it difficult to accommodate multi-directional positional deviations, and the shims are prone to positional changes during long-term use, affecting the stability of the connection structure. Summary of the Invention

[0004] To address the shortcomings of the existing technology, the technical problem to be solved by the present invention is to provide a fitting assembly gap compensation connection structure.

[0005] A gap-compensating connection structure for outfitting components includes a mounting base. The mounting base includes a first mounting panel and a second mounting panel spaced vertically apart. A clearance hole is provided through the first mounting panel. A positioning seat is provided on the first mounting panel corresponding to the clearance hole, which can be installed to dock with the column of the outfitting component. A circumferential gap is left between the positioning seat and the clearance hole. The second mounting panel is provided with a connecting structure connected to the positioning seat. The connecting structure enables the positioning seat to make horizontal adjustment displacement relative to the clearance hole.

[0006] In one embodiment, the connection structure includes a first connecting seat, a second connecting seat, and a connecting shaft. A first ball and a second ball are fixedly disposed at both ends of the connecting shaft. The first connecting seat is disposed on a second mounting panel. The first connecting seat has a first spherical cavity with an upper opening, and the first ball is movably disposed within the first spherical cavity. The second connecting seat has a second spherical cavity with a lower opening, and the second ball is movably disposed within the second spherical cavity. The second connecting seat has a plurality of guide holes spaced apart. The lower side of the positioning seat has a plurality of guide shafts spaced apart. The guide shafts are movably inserted into the guide holes one by one through linear bearings.

[0007] In one embodiment, the guide shaft is provided with two positioning clamps spaced apart vertically, and a clamping cavity is formed between the two positioning clamps. The first mounting panel is disposed in the clamping cavity, and the thickness of the first mounting panel is less than the height of the clamping cavity.

[0008] In one embodiment, the upper side of the positioning seat has a positioning sleeve, and the outfitting column can be inserted into the positioning sleeve.

[0009] In one embodiment, the connection structure further includes a locking structure capable of preventing the second connecting seat from making horizontal displacement relative to the positioning seat.

[0010] In one embodiment, the locking structure includes a movable seat that is movably disposed within a positioning sleeve. The lower side of the movable seat extends through the positioning seat to below the first mounting panel and is provided with a connecting frame. A first rack is provided on one side of the connecting frame. An annular plate is fixedly sleeved on the second connecting seat. The annular plate has a mesh structure with several vertical openings. A locking plate is movably disposed on the first connecting seat. A positioning shaft and a second rack are respectively provided on the locking plate. The positioning shaft can be inserted into the mesh structure as the locking plate moves. A gear that can mesh between the first rack and the second rack is rotatably disposed on the first connecting seat. A spring abuts between the locking plate and the first connecting seat. The spring keeps the positioning shaft moving downward away from the mesh structure.

[0011] In one embodiment, the clearance holes, the connecting structure, and the positioning seat each have a plurality of holes, and the plurality of clearance holes are arranged along the same horizontal axis of the mounting seat.

[0012] In one embodiment, the positioning clamp can cover the clearance hole.

[0013] In summary, the advantages of this invention over the prior art are:

[0014] This invention utilizes the circumferential gap between the positioning seat and the clearance hole, along with the connecting structure, to drive the positioning seat to make horizontal adjustment displacement in all directions relative to the clearance hole. This can fully adapt to the positional and coaxiality assembly deviations between the outfitting column and the positioning seat, eliminating the need for secondary processing operations such as on-site drilling, cutting, and welding. This reduces the workload of on-site construction, improves the assembly efficiency of ship outfitting, and shortens the ship construction cycle.

[0015] Furthermore, the double ball joint connection structure enables omnidirectional horizontal adjustment of the positioning seat. Combined with the guiding structure of the guide shaft and linear bearing, it not only ensures the smoothness of horizontal displacement adjustment and avoids jamming during adjustment, but also restricts the rotation of the positioning seat, ensuring the positioning accuracy of the outfitting column docking. At the same time, the clamping cavity structure of the positioning clamp plate restricts the vertical movement of the positioning seat without affecting the horizontal adjustment, thereby improving the vertical load-bearing capacity and long-term stability of the structure.

[0016] Furthermore, the locking structure, which is linked by a gear and rack, can lock the position of the positioning seat simultaneously while the outfitting column is being inserted and installed, eliminating the need for additional locking operations and making the operation convenient and efficient. The locking state is linked to the installation state of the outfitting component, which can effectively prevent problems such as positioning seat displacement and loosening of connections caused by vibration and impact during ship operation, thereby improving the anti-loosening performance and safety of the connection structure. Attached Figure Description

[0017] Figure 1 This is a cross-sectional view of an outfitting component assembly gap compensation connection structure according to one embodiment of the present invention;

[0018] Figure 2 As one embodiment of the present invention Figure 1 Enlarged view of point A;

[0019] Figure 3 This is one of the exploded views of an outfitting component assembly gap compensation connection structure according to an embodiment of the present invention;

[0020] Figure 4 This is a perspective view of an outfitting component assembly gap compensation connection structure according to one embodiment of the present invention. Detailed Implementation

[0021] The present invention will be further described below with reference to the accompanying drawings and specific embodiments:

[0022] like Figures 1 to 4The present invention preferably provides an outfitting component assembly gap compensation connection structure, including a mounting base. The mounting base includes a first mounting panel 1 and a second mounting panel 2 arranged vertically at intervals. A clearance hole 3 is provided through the first mounting panel 1. A positioning seat 4 is provided on the first mounting panel 1 corresponding to the clearance hole 3, which can be installed to dock with the outfitting component column. A circumferential gap is left between the positioning seat 4 and the clearance hole 3. The second mounting panel 2 is provided with a connecting structure 5 connected to the positioning seat 4. The connecting structure 5 enables the positioning seat 4 to make horizontal adjustment displacement relative to the clearance hole 3.

[0023] Specifically, the mounting base uses a first mounting panel and a second mounting panel arranged parallel to each other at an interval as the main support carrier. A clearance hole is opened through the first mounting panel to provide a space for the horizontal adjustment of the positioning seat. The positioning seat is set in the clearance hole, and an annular gap is reserved along the circumference between the positioning seat and the wall of the clearance hole. This annular gap is the maximum stroke range of the horizontal adjustment of the positioning seat. The connecting structure set on the second mounting panel is connected to the second mounting panel at one end and to the positioning seat at the other end, forming the support and adjustment transmission structure of the positioning seat. Through the movable adaptation of the connecting structure, the positioning seat can be driven to make arbitrary horizontal adjustment displacement relative to the clearance hole within the annular gap range of the clearance hole. This compensates for the positional and coaxiality assembly deviations between the outfitting column and the mounting base caused by processing and welding deformation, realizing the core function of outfitting assembly gap compensation. Precise docking and installation of outfitting components can be completed without secondary processing on site.

[0024] Furthermore, the connecting structure 5 includes a first connecting seat 6, a second connecting seat 7, and a connecting shaft 8. A first ball 9 and a second ball 10 are fixedly provided at both ends of the connecting shaft 8. The first connecting seat 6 is disposed on the second mounting panel 2. The first connecting seat 6 has a first ball cavity 11 with an upper opening. The first ball 9 is movably disposed in the first ball cavity 11. The second connecting seat 7 has a second ball cavity 12 with a lower opening. The second ball 10 is movably disposed in the second ball cavity 12. The second connecting seat 7 has a plurality of guide holes 13 spaced apart. The lower side of the positioning seat 4 has a plurality of guide shafts 14 spaced apart. The guide shafts 14 are movably inserted into the guide holes 13 through linear bearings.

[0025] Specifically, the connection structure adopts a composite structure with double universal ball joints and linear guidance. The first connecting seat is fixedly mounted on the second mounting panel, and its internal first ball cavity engages with the first ball at the lower end of the connecting shaft to form a universally rotatable lower ball joint structure. The second ball cavity inside the second connecting seat engages with the second ball at the upper end of the connecting shaft to form a universally rotatable upper ball joint structure. Through the universal rotation adaptation of the two sets of ball joints, the second connecting seat can achieve arbitrary horizontal displacement and swing relative to the first connecting seat, providing universal freedom for the horizontal adjustment of the positioning seat. Simultaneously... Multiple guide shafts spaced apart on the lower side of the positioning seat are inserted into the guide holes of the second connecting seat through corresponding linear bearings. This guiding structure can synchronously transmit the horizontal displacement of the second connecting seat to the positioning seat, driving the positioning seat to complete the horizontal adjustment. On the other hand, the cooperation between the guide shafts and the guide holes can limit the rotation of the positioning seat relative to the second connecting seat, ensuring the angular positioning accuracy of the positioning seat. At the same time, the linear bearings can realize the vertical slight sliding of the guide shafts relative to the second connecting seat, adapting to the vertical height changes generated during the double ball joint adjustment process, ensuring that the horizontal adjustment process is smooth and without jamming throughout.

[0026] Furthermore, the guide shaft 14 is provided with two positioning clamps 15 spaced apart vertically, and a clamping cavity 16 is formed between the two positioning clamps 15. The first mounting panel 1 is disposed in the clamping cavity 16, and the thickness of the first mounting panel 1 is less than the height of the clamping cavity 16.

[0027] Specifically, two positioning clamps are fixedly installed at an upper and lower interval between several guide shafts, forming a clamping cavity between the two positioning clamps. The body of the first mounting panel is placed inside the clamping cavity (i.e., the circumference of the clearance hole is located inside the clamping cavity). By vertically limiting the first mounting panel through the upper and lower positioning clamps, the vertical movement of the guide shaft and the positioning seat as a whole can be restricted, avoiding vertical displacement after the outfitting is installed, and improving the vertical load-bearing capacity and connection stability of the structure. At the same time, the vertical height of the clamping cavity is greater than the thickness of the first mounting panel, so that during the horizontal adjustment of the positioning seat, the positioning clamps can move horizontally synchronously with the guide shaft without structural interference with the first mounting panel. This provides sufficient space for the omnidirectional horizontal displacement adjustment of the positioning seat, achieving a balance between vertical limitation and horizontal adjustment.

[0028] Furthermore, the upper side of the positioning seat 4 has a positioning sleeve 17, and the outfitting column can be inserted into the positioning sleeve 17.

[0029] Specifically, a positioning sleeve is fixedly installed on the upper side of the positioning seat. The inner diameter of the positioning sleeve is adapted to the outer diameter of the outfitting column. The outfitting column can be directly inserted into the positioning sleeve, realizing quick docking and positioning of the outfitting component and the connecting structure without additional alignment and calibration operations, thus improving on-site assembly efficiency. At the same time, the cylinder wall of the positioning sleeve can form a full-circumferential radial limit on the outfitting column, preventing radial shaking after the column is installed, and improving the structural integrity and impact resistance after docking and installation.

[0030] Furthermore, the connection structure 5 also includes a locking structure 18 that can lock the second connecting seat 7 to make horizontal displacement relative to the positioning seat.

[0031] Specifically, the connecting structure is equipped with a locking structure. The core function of this locking structure is to lock the horizontal displacement of the second connecting seat relative to the positioning seat after the positioning seat has completed horizontal position adjustment and the outfitting components have completed docking and installation. This locks the position of the positioning seat within the clearance hole, preventing displacement of the positioning seat and loosening of the connection due to factors such as vibration, impact, and water flow disturbance during ship operation. It ensures the long-term connection reliability after assembly gap compensation and eliminates the potential for connection failure caused by structural displacement.

[0032] Furthermore, the locking structure 18 includes a movable seat 19 that is movably disposed within the positioning sleeve 17. The lower side of the movable seat 19 extends through the positioning seat 4 to the lower part of the first mounting panel 1 and is provided with a connecting frame 20. A first rack 21 is provided on one side of the connecting frame 20. An annular plate 22 is fixedly sleeved on the second connecting seat 7. The annular plate 22 has a mesh structure 23 with several upper and lower openings. A locking plate 24 is movably disposed on the first connecting seat 6. A positioning shaft 25 and a second rack 26 are respectively provided on the locking plate 24. The positioning shaft 25 can be inserted into the mesh of the mesh structure 23 as the locking plate 24 moves. A gear 27 that can mesh between the first rack 21 and the second rack 26 is rotatably disposed on the first connecting seat 6. A spring 91 abuts between the locking plate 24 and the first connecting seat 6. The spring 91 keeps the positioning shaft 25 moving downward away from the mesh structure 23.

[0033] The annular plate has a mesh structure consisting of several positioning holes evenly spaced circumferentially. Each positioning hole penetrates the annular plate vertically, forming a continuous circumferential and densely distributed array of positioning holes. A positioning shaft adapted to the mesh structure is fixedly mounted on the locking plate, facing upwards. Its outer diameter forms a clearance fit or transition fit with the inner diameter of the positioning hole, ensuring smooth insertion of the positioning shaft into the positioning hole without significant radial wobble. The annular plate is fixedly fitted onto the outer circumference of the second connecting seat and moves synchronously with it. The annular plate has several vertically penetrating mesh structures evenly spaced circumferentially, forming a continuously distributed array of positioning holes. A corresponding positioning shaft is mounted on the locking plate, facing upwards and forming a vertical alignment fit with the positioning holes in the mesh structure. When the second connecting seat is horizontally adjusted relative to the first connecting seat, the annular plate and the mesh structure move synchronously with the second connecting seat, causing different positioning holes in the mesh structure to move sequentially to directly above the positioning shaft, achieving effective alignment at any adjustment position. When the locking plate moves upward, the positioning shaft is inserted into the positioning hole at the current alignment. The cooperation between the positioning shaft and the positioning hole restricts the horizontal displacement and rotation of the annular plate and the second connecting seat, so that the second connecting seat is completely locked after adjustment and can no longer have relative displacement. When the locking plate moves downward, the positioning shaft exits the positioning hole, and the second connecting seat regains its horizontal adjustment freedom, and gap compensation adjustment can continue.

[0034] Specifically, the locking structure adopts a vertical drive, gear and rack linkage plug-in locking design. Its core working principle is as follows: when the outfitting column is inserted into the positioning sleeve, the lower end of the column presses down on the movable seat, causing the movable seat to move vertically downward along the inner cavity of the positioning sleeve; at the same time as the movable seat moves downward, it drives the first rack to move vertically downward synchronously through the connecting frame at its lower end. The first rack meshes with the gear, causing the gear to rotate; the rotating gear meshes with the second rack at the same time, thereby causing the second rack to move vertically upward. The second rack is fixedly connected to the locking plate, thereby causing the locking plate to move vertically upward along the first connecting seat; the positioning shaft on the locking plate moves upward accordingly and inserts into the mesh structure of the annular plate. The annular plate is fixedly sleeved on the second connecting seat. Through the plug-in cooperation between the positioning shaft and the mesh structure, the horizontal displacement and rotation of the second connecting seat are completely restricted, thereby achieving reliable locking of the positioning seat position. Conversely, when the outfitting column is removed from the positioning sleeve, the movable seat loses downward pressure and can be reset upwards by the spring. Through the reverse linkage of the gear and rack, the locking plate and positioning shaft move downwards, and the positioning shaft exits from the mesh structure, releasing the lock on the second connecting seat. The positioning seat can then resume its horizontal adjustment function. This locking structure can be completed synchronously with the installation of the outfitting column, requiring no additional tools or operating steps. It is convenient to operate, reliable in linkage, and the locking state is strongly correlated with the installation state of the outfitting component, providing excellent anti-loosening and anti-detachment effects.

[0035] Furthermore, each of the relief holes 3, the connecting structure 5, and the positioning seat 4 has a certain number of holes, and the relief holes 3 are arranged along the same horizontal axis of the mounting seat.

[0036] Specifically, multiple sets of corresponding clearance holes, connecting structures, and positioning seats are arranged along the same horizontal axis on the mounting base, forming a multi-station integrated gap compensation connection structure. For the installation of multi-column outfitting components, each set of positioning seats can independently achieve omnidirectional horizontal displacement adjustment and assembly gap compensation, which can adapt to various assembly errors such as spacing deviation and coaxiality deviation between multiple columns. There is no need to pre-install each set of mounting structures separately, which greatly improves the assembly efficiency of multi-column outfitting components. At the same time, the integration of multiple structures on the same mounting base improves the overall rigidity and installation consistency of the installation structure, further ensuring the installation stability of multi-column outfitting components.

[0037] Furthermore, the positioning clamp 15 can cover the clearance hole 3. A sealing ring abuts between the positioning clamp and the first mounting panel, thereby providing coverage and protection for the clearance hole.

[0038] The foregoing has shown and described the basic principles and main features of the present invention, as well as its advantages. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of the invention. Various changes and modifications can be made to the present invention without departing from its spirit and scope, and all such changes and modifications fall within the scope of the present invention as claimed. The scope of protection of the present invention is defined by the appended claims and their equivalents.

Claims

1. A fitting assembly gap compensation connection structure, comprising a mounting base, characterized in that: The mounting base includes a first mounting panel (1) and a second mounting panel (2) spaced apart vertically. The first mounting panel (1) has a through hole (3). The first mounting panel (1) has a positioning seat (4) located in the corresponding space of the spacer hole (3) that can be installed with the outfitting column. There is a gap along the circumference between the positioning seat (4) and the spacer hole (3). The second mounting panel (2) has a connecting structure (5) connected to the positioning seat (4). The connecting structure (5) allows the positioning seat (4) to make horizontal adjustment displacement relative to the spacer hole (3).

2. The outfitting component assembly gap compensation connection structure according to claim 1, characterized in that: The connecting structure (5) includes a first connecting seat (6), a second connecting seat (7), and a connecting shaft (8). The two ends of the connecting shaft (8) are respectively fixed with a first ball (9) and a second ball (10). The first connecting seat (6) is set on the second mounting panel (2). The first connecting seat (6) has a first ball cavity (11) with an upper opening. The first ball (9) is movably disposed in the first ball cavity (11). The second connecting seat (7) has a second ball cavity (12) with a lower opening. The second ball (10) is movably disposed in the second ball cavity (12). The second connecting seat (7) has a plurality of guide holes (13) spaced apart. The lower side of the positioning seat (4) is provided with a plurality of guide shafts (14) spaced apart. The guide shafts (14) are movably inserted into the guide holes (13) through linear bearings.

3. The outfitting component assembly gap compensation connection structure according to claim 2, characterized in that: The guide shaft (14) is provided with two positioning clamps (15) spaced apart vertically, and a clamping cavity (16) is formed between the two positioning clamps (15). The first mounting panel (1) is located in the clamping cavity (16), and the thickness of the first mounting panel (1) is less than the height of the clamping cavity (16).

4. The outfitting component assembly gap compensation connection structure according to claim 2, characterized in that: The positioning seat (4) has a positioning sleeve (17) on its upper side, and the outfitting column can be inserted into the positioning sleeve (17).

5. The outfitting component assembly gap compensation connection structure according to claim 4, characterized in that: The connecting structure (5) also includes a locking structure (18) that can lock the second connecting seat (7) to make horizontal displacement relative to the positioning seat.

6. The outfitting component assembly gap compensation connection structure according to claim 5, characterized in that: The locking structure (18) includes a movable seat (19) that is movably disposed within the positioning sleeve (17). The lower side of the movable seat (19) extends through the positioning seat (4) to below the first mounting panel (1) and is provided with a connecting frame (20). A first rack (21) is provided on one side of the connecting frame (20). An annular plate (22) is fixedly sleeved on the second connecting seat (7). The annular plate (22) has a mesh structure (23) with several vertical openings. A locking plate (24) is movably disposed on the first connecting seat (6). The locking plate (24) is provided with a positioning shaft (25) and a second rack (26). The positioning shaft (25) can be inserted into the mesh of the mesh structure (23) as the locking plate (24) moves. The first connecting seat (6) is rotatably provided with a gear (27) that can mesh between the first rack (21) and the second rack (26). A spring (91) abuts between the locking plate (24) and the first connecting seat (6). The spring (91) keeps the positioning shaft (25) moving downward away from the mesh structure (23).

7. The outfitting component assembly gap compensation connection structure according to claim 1, characterized in that: The clearance hole (3) and the connecting structure (5) and the positioning seat (4) each have a number of corresponding clearance holes (3), and the clearance holes (3) are arranged along the same horizontal axis of the mounting seat.

8. The outfitting component assembly gap compensation connection structure according to claim 3, characterized in that: The positioning clamp (15) can cover the clearance hole (3).