Stem prosthetic support device

Abstract

The application provides a connecting pipe prosthesis support device, which comprises a telescopic mechanism, two support mechanisms connected to two ends of the telescopic mechanism, a connecting shaft and a plurality of support rod groups of the support mechanism, the connecting shaft being connected to the telescopic mechanism, the plurality of support rod groups being cross-connected to the connecting shaft with an adjustable angle, two variable-diameter mechanisms corresponding to the two support mechanisms, a gear assembly and a plurality of support pieces of the variable-diameter mechanism, the gear assembly being connected to the corresponding connecting shaft, two ends of each support rod group being respectively connected to a support piece arranged in a sliding mode along the extension direction of the support rod group, the plurality of support pieces being connected to the gear assembly and sliding relative to the corresponding support rod group under the driving of the gear assembly, and the plurality of support pieces being used for supporting a flange. The connecting pipe prosthesis support device can be used for fixing flanges with different specifications, has a wide application range and high universality.

Description

Technical Field

[0001] This invention relates to the field of pipe fitting installation technology, and in particular to a pipe fitting prosthesis support device. Background Technology

[0002] Shipbuilding involves the installation of numerous flexible hoses between flanges. Since the spacing between flanges needs to be accurately determined before installing the hoses, but the hoses themselves do not have supporting force and cannot be used to determine the spacing between flanges, it is necessary to install a dummy to first determine the spacing between flanges before installing the flexible hoses between them.

[0003] However, in reality, the spacing between flanges, the diameter of flanges, and the direction of flanges often vary greatly. Existing prosthetic tooling has a limited scope of application, lacks versatility, and cannot meet construction requirements. Summary of the Invention

[0004] In view of the shortcomings of the above-mentioned related technologies, the purpose of this invention is to provide a prosthesis support device for connecting pipes, which solves the problems of limited applicability and poor versatility of existing prosthesis tooling.

[0005] To achieve the above and other related objectives, the present invention provides a flange prosthesis support device, comprising: a telescopic mechanism; two support mechanisms respectively connected to both ends of the telescopic mechanism, each support mechanism including a connecting shaft and multiple support rod groups, the connecting shaft being connected to the telescopic mechanism, the multiple support rod groups being cross-arranged and adjustablely connected to the connecting shaft with respect to each other; and two diameter-changing mechanisms respectively corresponding to the two support mechanisms, each diameter-changing mechanism including a gear assembly and multiple support members, the gear assembly being connected to the corresponding connecting shaft, each end of each support rod group being connected to a support member that slides along the extension direction of the support rod group, the multiple support members being connected to the gear assembly and sliding relative to the corresponding support rod group under the drive of the gear assembly, the multiple support members being used to support the flange.

[0006] Optionally, the gear assembly includes a drive gear and a gear rack assembly. The drive gear is rotatably connected to the connecting shaft, and the drive gear is connected to a plurality of the support members through the gear rack assembly to drive the plurality of support members to slide.

[0007] Optionally, the gear and rack assembly includes multiple first gears, multiple rotating shafts, multiple second gears, and multiple racks. The multiple first gears mesh with the driving gear, and the multiple first gears and multiple second gears correspond one-to-one. Each first gear is connected to the corresponding second gear through a rotating shaft. The two ends of each support rod assembly are rotatably connected to a rotating shaft, and each support member is connected to a rack. Each second gear meshes with each rack.

[0008] Optionally, the support member includes a slide rod and a connector. The slide rod is slidably connected to the support rod assembly along the extension direction of the support rod assembly. One end of the connector is inserted into the end of the slide rod away from the connecting shaft and is threadedly connected to the slide rod. The other end of the connector is used to connect to the flange.

[0009] Optionally, the connector includes a screw and an end, with the two ends of the screw threadedly connected to the slide rod and the end, respectively.

[0010] Optionally, the support further includes two locking nuts, which are threaded to both ends of the screw and respectively abut against the slide rod and the end.

[0011] Optionally, the telescopic mechanism includes an outer connecting rod, an inner connecting rod, and a locking assembly. One end of the inner connecting rod is slidably inserted into one end of the outer connecting rod. The two ends of the outer connecting rod and the inner connecting rod that are far apart from each other are respectively connected to the two connecting shafts. The locking assembly is connected between the inner connecting rod and the outer connecting rod to lock the inner connecting rod.

[0012] Optionally, the telescopic mechanism includes an outer connecting rod, an inner connecting rod, and a locking assembly. One end of the inner connecting rod is slidably inserted into one end of the outer connecting rod. The two ends of the outer connecting rod and the inner connecting rod that are far apart from each other are respectively connected to the two connecting shafts. The locking assembly is connected between the inner connecting rod and the outer connecting rod to lock the inner connecting rod.

[0013] Optionally, the telescopic mechanism further includes two universal joints, and the outer connecting rod and the inner connecting rod are respectively connected to the corresponding connecting shaft through the two universal joints.

[0014] Optionally, the support rod assembly includes a connecting plate and two connecting rods. The two connecting rods extend radially along the connecting plate and are symmetrically connected to the connecting plate. The connecting plate is sleeved on the connecting shaft. The two connecting rods are slidably connected to the corresponding support members. The support mechanism also includes a fixing member connected to the connecting shaft for fixing the two support rod assemblies to the connecting shaft.

[0015] As described above, the nozzle prosthesis support device of the present invention has the following beneficial effects: By rotating and adjusting the support rod assembly and the diameter adjustment mechanism, the nozzle prosthesis support device can be used to fix flanges of different specifications, thereby improving the versatility of the nozzle prosthesis support device. Because the two support mechanisms can rotate freely under the action of the universal joint, the nozzle prosthesis support device can be used to support two flanges with different installation directions. Furthermore, by adjusting the extension and retraction length of the inner connecting rod, the fixed distance between the two flanges can be adjusted, thereby meeting different construction requirements. The nozzle prosthesis support device is suitable for flanges of different diameters, installation directions, and spacings, meeting diverse on-site requirements. Attached Figure Description

[0016] Figure 1 The diagram shown is a schematic of the prosthesis support device in this embodiment.

[0017] Figure 2 The diagram shown is a schematic of the conical seat in this embodiment.

[0018] Figure 3 The diagram shown is an exploded view of the support mechanism and the diameter-changing mechanism in this embodiment.

[0019] Component designation explanation

[0020] 10 Connecting shaft

[0021] 101 bearing

[0022] 102 retaining ring

[0023] 103 Tightening nut

[0024] 11 Connecting disk

[0025] 12 connecting rods

[0026] 121 bracket

[0027] 13 Fasteners

[0028] 14 stops

[0029] 20. External Linkage

[0030] 21. Inner Linkage

[0031] 22 Tapered Nuts

[0032] 23 Base

[0033] 24. Protrusion

[0034] 25 omnidirectional head

[0035] 251 Coupling

[0036] 252 Crosshead

[0037] 30 Drive Gear

[0038] 31 First Gear

[0039] 32 pivots

[0040] 33 Second Gear

[0041] 34 racks

[0042] 35 Slide Bar

[0043] 36 screw

[0044] 37 end

[0045] 38 Locking nut Detailed Implementation

[0046] The following specific examples illustrate the implementation of the present invention. Those skilled in the art can easily understand other advantages and effects of the present invention from the content disclosed in this specification. The present invention can also be implemented or applied through other different specific embodiments, and various details in this specification can also be modified or changed based on different viewpoints and applications without departing from the spirit of the present invention.

[0047] In the detailed description of embodiments of the present invention, for ease of explanation, the cross-sectional views illustrating the device structure may be partially enlarged and not to scale. Furthermore, the schematic diagrams are merely examples and should not limit the scope of protection of the present invention. In actual fabrication, the three-dimensional spatial dimensions of length, width, and depth should be included.

[0048] For ease of description, spatial relation terms such as “below,” “under,” “lower than,” “below,” “above,” and “upper” may be used herein to describe the relationship between one element or feature shown in the accompanying drawings and other elements or features. It will be understood that these spatial relation terms are intended to include directions other than those depicted in the drawings for the device in use or operation. Furthermore, when a layer is referred to as being “between” two layers, it can be the only layer between the two layers, or there may be one or more layers in between. The phrase “between” as used herein includes both endpoint values.

[0049] In the context of this application, the structure described above the first feature may include embodiments in which the first and second features are formed in direct contact, or embodiments in which additional features are formed between the first and second features, such that the first and second features may not be in direct contact.

[0050] It should be noted that the illustrations provided in this embodiment are only schematic representations of the basic concept of the present invention. Therefore, the illustrations only show the components related to the present invention and are not drawn according to the actual number, shape and size of the components in the actual implementation. In the actual implementation, the form, quantity and proportion of each component can be arbitrarily changed, and the layout of the components may also be more complex.

[0051] like Figure 1 As shown, this embodiment provides a tube prosthesis support device, which connects two flanges and is used to support and position the two flanges.

[0052] The prosthesis support device includes a telescopic mechanism, two support mechanisms, and two diameter-changing mechanisms. The two support mechanisms are connected to both ends of the telescopic mechanism, and the two diameter-changing mechanisms are respectively positioned corresponding to the two support mechanisms. Each support mechanism includes a connecting shaft 10 and multiple support rod assemblies. The connecting shaft 10 is connected to the telescopic mechanism, and the multiple support rod assemblies are arranged crosswise and connected to the connecting shaft 10 at adjustable angles. Each diameter-changing mechanism includes a gear assembly and multiple support members. The gear assembly is connected to the corresponding connecting shaft 10, and each end of each support rod assembly is connected to a support member extending along the direction of the support rod assembly. All support members are connected to the gear assembly and slide relative to the corresponding support rod assembly under the drive of the gear assembly. The multiple support members support the flange.

[0053] During the installation of the pipe fitting prosthesis support device, the two flanges are first connected to the supports of the two reducing mechanisms. Each flange is then fixed to the pipe fitting prosthesis support device via multiple supports. After the two flanges are fixed, they are connected to the equipment interface and the ship's pipeline, respectively. Then, the pipe fitting prosthesis support device is removed, and the two ends of the flexible hose are connected to the two flanges. During construction, there are usually specific requirements for the distance between the two flanges. Because the flexible hose itself is not flexible enough to provide support for the flanges, connecting the hose to the two flanges first, and then connecting the flanges to the equipment interface and the ship's pipeline, makes it impossible to guarantee the distance between the two flanges. The pipe fitting prosthesis support device provides fixed-distance support to the two flanges, maintaining a constant distance between them throughout the construction process, thus meeting the construction requirements.

[0054] Because the support member can slide relative to the support rod under the drive of the gear assembly, it can be used to fix flanges of different diameters when the position of the support member changes. For example, when the support member slides away from the connecting shaft 10, it can be used to fix flanges with larger diameters. When the support member slides closer to the connecting shaft 10, it can be used to fix flanges with smaller diameters. The pipe prosthesis support device can be used to fix flanges of different diameters under the action of the diameter changing mechanism.

[0055] Since the support rod assembly is rotatably connected to the connecting shaft 10, the angle between two adjacent support rod assemblies can be changed by rotating the assembly. At this time, the support members located on the support rod assembly also move accordingly, thereby adjusting the distance between two adjacent support members. When using flanges of different specifications, the positions of the holes on the flanges differ. Operators can adjust the position of the support rod assembly by rotating it, thereby adjusting the distance between two adjacent support members, allowing the support members to be used to fix flanges of different specifications.

[0056] When the required fixed distance between two flanges changes during construction, the distance between the two support mechanisms can be changed by adjusting the telescopic mechanism. This achieves the purpose of adjusting the distance between the two flanges, thereby meeting the construction requirements.

[0057] like Figure 1 and Figure 2 As shown, the telescopic mechanism includes an outer connecting rod 20, an inner connecting rod 21, and a locking assembly. One end of the inner connecting rod 21 is slidably inserted into one end of the outer connecting rod 20. The two ends of the outer connecting rod 20 and the inner connecting rod 21 that are far apart from each other are respectively connected to two connecting shafts 10. The locking assembly is connected between the inner connecting rod 21 and the outer connecting rod 20 to lock the inner connecting rod 21.

[0058] Specifically, when it is necessary to adjust the distance between the two support mechanisms, the locking assembly is unlocked and the inner connecting rod 21 is extended or retracted relative to the outer connecting rod 20. When the position of the inner connecting rod 21 is adjusted to the appropriate position, the inner connecting rod 21 is then locked by the locking assembly.

[0059] The locking assembly includes a tapered seat and a tapered nut 22. The tapered seat is connected to the end of the outer connecting rod 20 facing the inner connecting rod 21. The inner connecting rod 21 passes through the tapered seat and is inserted into the outer connecting rod 20. The tapered nut 22 is sleeved on the inner connecting rod 21 and threaded to the tapered seat to lock the inner connecting rod 21.

[0060] Specifically, the conical seat includes a base 23 and multiple protrusions 24. The base 23 is annular and threadedly connected to the end of the outer connecting rod 20 facing the inner connecting rod 21. The multiple protrusions 24 are integrally connected to the end of the base 23 away from the outer connecting rod 20, and are spaced apart. The multiple protrusions 24 gradually converge from the end connected to the base 23 to the end away from the base 23. The outer side of the multiple protrusions 24 is threaded for engaging with the conical nut 22. When assembling the telescopic mechanism, one end of the inner connecting rod 21 is inserted between the multiple protrusions 24 and through the base 23 into the outer connecting rod 20. Then, the conical nut 22 is fitted onto the inner connecting rod 21. When the conical nut 22 is tightened, the multiple protrusions 24 converge and lock the inner connecting rod 21 to prevent it from sliding. To facilitate adjustment of the extended length of the inner connecting rod 21, a scale is provided on the inner connecting rod 21.

[0061] During construction, the installation positions between the two flanges vary. To adapt to construction requirements, the telescopic mechanism also includes two universal joints 25. The outer connecting rod 20 and the inner connecting rod 21 are respectively connected to the corresponding connecting shaft 10 through the two universal joints 25.

[0062] Specifically, in this embodiment, the universal joint 25 consists of two couplings 251 and a crosshead 252. The crosshead 252 is connected between the two couplings 251. The two couplings 251 of one universal joint 25 are respectively connected to the connecting shaft 10 and the outer connecting rod 20, while the two couplings 251 of the other universal joint 25 are respectively connected to the connecting shaft 10 and the inner connecting rod 21. Through the action of the two universal joints 25, the relative positions of the two flanges fixed to the pipe prosthesis support device can be freely changed, thereby adapting to construction requirements.

[0063] like Figure 3 As shown, in this embodiment, each support mechanism has two support rod groups. Each support rod group includes a connecting plate 11 and two connecting rods 12. The two connecting rods 12 extend radially along the connecting plate 11 and are symmetrically connected to the connecting plate 11. The connecting plate 11 is sleeved on the connecting shaft 10. The two connecting rods 12 are slidably connected to the corresponding support members. The support mechanism also includes a fixing member 13, which is connected to the connecting shaft 10 and is used to fix the two support rod groups to the connecting shaft 10.

[0064] Specifically, the connecting shaft 10 is equipped with a stop 14, and the fixing member 13 can be a nut. After the two connecting discs 11 are sleeved on the connecting shaft 10, the fixing member 13 is threaded onto the connecting shaft 10. At this time, the fixing member 13 presses the two connecting discs 11 against the stop 14. Due to the different specifications of the flanges, the number of holes opened on each type of flange is also different. For example, when fixing a four-hole flange, the included angle between the two holes is 90 degrees. After the two connecting discs 11 are sleeved on the connecting shaft 10, the included angle of the two support rod groups can be adjusted first to make them 90 degrees so that the support members on the support rod groups can be aligned with the flange, and then the fixing member 13 is tightened. When fixing a six-hole flange, the fixing member 13 can be loosened first to rotate and adjust the included angle between the two support rod groups, and then the fixing member 13 is tightened. Since the included angle between the two support rod groups can be adjusted according to the flange, the applicability of the pipe prosthesis support device is improved.

[0065] like Figure 3 As shown, the gear assembly includes a drive gear 30 and a gear rack assembly. The drive gear 30 is rotatably connected to the connecting shaft 10. The drive gear 30 is connected to multiple support members through the gear rack assembly to drive the multiple support members to slide.

[0066] Specifically, a bearing 101 and a retaining ring 102 are fitted on the connecting shaft 10. The bearing 101 is located on the side of the stop block 14 away from the support rod assembly. The two sides of the inner ring of the bearing abut against the stop block 14 and the retaining ring 102 respectively. The drive gear 30 is fitted on the outer ring of the bearing. A clamping nut 103 is threaded onto the connecting shaft 10. Tightening the clamping nut 103 makes it press against the retaining ring 102, thereby achieving the purpose of fixing the drive gear 30.

[0067] The gear and rack assembly is located between the support member and the drive gear 30. The gear and rack assembly plays a role in transmission. When the drive gear 30 is rotated, the drive gear 30 moves the gear and rack assembly, which in turn drives the support member to slide.

[0068] The gear and rack assembly includes multiple first gears 31, multiple rotating shafts 32, multiple second gears 33, and multiple racks 34. The multiple first gears 31 mesh with the driving gear 30. The multiple first gears 31 and the multiple second gears 33 correspond one-to-one, and each first gear 31 is connected to the corresponding second gear 33 through a rotating shaft 32. The two ends of each support rod assembly are rotatably connected to a rotating shaft 32. Each support member is connected to a rack 34. Each second gear 33 meshes with each rack 34.

[0069] Specifically, a bracket 121 is provided on the connecting rod 12, and the rotating shaft 32 rotatably passes through the bracket 121. The first gear 31 and the second gear 33 are located on both sides of the bracket 121, respectively. The first gear 31 meshes with the driving gear 30, and the second gear 33 meshes with the rack 34. The bracket 121 supports the first gear 31 and the second gear 33 by supporting the rotating shaft 32. In this embodiment, multiple first gears 31 surround the periphery of the driving gear 30. When the driving gear 30 is rotated, the driving gear 30 will simultaneously drive multiple first gears 31 to rotate. The multiple first gears 31 drive the corresponding second gears 33 to rotate, and the multiple second gears 33 then drive the support members to slide through the corresponding racks 34. Under the action of the gear and rack assembly, the driving gear 30 can simultaneously drive multiple support members to slide. The number of first gears 31, second gears 33, rotating shaft 32, and racks 34 is the same, and the number can be four, six, or more.

[0070] like Figure 1 and Figure 3 As shown, the support includes a slide rod 35 and a connector. The slide rod 35 is slidably connected to the support rod assembly along the extension direction of the support rod assembly. One end of the connector is inserted into the end of the slide rod 35 away from the connecting shaft 10 and is threadedly connected to the slide rod 35. The other end of the connector is used to connect to the flange.

[0071] Specifically, the connecting rod 12 has a sliding hole extending along it, and the slide rod 35 has a protruding structure that is slidably connected to the sliding hole. The rack 34 is fixedly connected to the slide rod 35 and extends along it. When the second gear 33 drives the rack 34 to move, the rack 34 causes the slide rod 35 to slide relative to the connecting rod 12.

[0072] The end of the slide bar 35 furthest from the connecting shaft 10 has a threaded hole, and one end of the connector is threaded into the thread. The operator can rotate the connector to extend it, thereby meeting the requirements of connecting flanges with larger diameters.

[0073] The connector includes a screw 36 and an end cap 37. The two ends of the screw 36 are threadedly connected to the slide bar 35 and the end cap 37, respectively. Because the end cap 37 and the screw 36 are threadedly connected, operators can replace the end cap 37 according to the flange specifications, thus using a suitable end cap 37 to connect the flange.

[0074] The support also includes two locking nuts 38, which are threaded to both ends of the screw 36 and respectively abut against the slide bar 35 and the end 37.

[0075] Specifically, after the two ends of the screw 36 are threadedly connected to the slide rod 35 and the end 37 respectively, the two locking nuts 38 are then tightened so that the two locking nuts 38 abut against the slide rod 35 and the end 37 respectively. Under the action of the two locking nuts 38, loosening between the screw 36 and the slide rod 35, and between the screw 36 and the end 37 can be avoided.

[0076] In summary, the implementation process of the prosthesis support device in this embodiment is as follows: First, adjust the distance between the two support mechanisms according to the construction requirements. Then, according to the position of the flange hole and the flange diameter, rotate the support rod assembly and the drive gear 30 so that the end 37 is aligned with the flange. Finally, connect the flange and the end 37.

[0077] After the two flanges are fixed to the manhole cover support device, connect the two flanges on the manhole cover support device to the equipment interface and the ship's pipeline respectively. After the connection is completed, remove the manhole cover support device and connect a hose between the two flanges.

[0078] The above embodiments are merely illustrative of the principles and effects of the present invention and are not intended to limit the invention. Any person skilled in the art can modify or alter the above embodiments without departing from the spirit and scope of the present invention. Therefore, all equivalent modifications or alterations made by those skilled in the art without departing from the spirit and technical concept disclosed in the present invention should still be covered by the claims of the present invention.

Claims

1. A support device for a prosthesis, characterized in that, The prosthesis support device includes: Telescopic mechanism; Two support mechanisms are respectively connected to both ends of the telescopic mechanism. Each support mechanism includes a connecting shaft and multiple support rod groups. The connecting shaft is connected to the telescopic mechanism, and the multiple support rod groups are arranged in a cross pattern and are connected to the connecting shaft at an adjustable angle to each other. Two diameter-changing mechanisms are respectively provided for the two support mechanisms. Each diameter-changing mechanism includes a gear assembly and multiple support members. The gear assembly is connected to the corresponding connecting shaft. Each end of each support rod group is connected to a support member that is slidably arranged along the extension direction of the support rod group. Multiple support members are all connected to the gear assembly and slide relative to the corresponding support rod group under the drive of the gear assembly. Multiple support members are used to support the flange. The gear assembly includes a drive gear and a gear rack assembly. The drive gear is rotatably connected to the connecting shaft. The drive gear is connected to a plurality of the support members through the gear rack assembly to drive the plurality of support members to slide. The gear and rack assembly includes multiple first gears, multiple rotating shafts, multiple second gears, and multiple racks. The multiple first gears mesh with the driving gear. The multiple first gears and the multiple second gears correspond one-to-one. Each first gear is connected to the corresponding second gear through a rotating shaft. The two ends of each support rod assembly are rotatably connected to a rotating shaft. Each support member is connected to a rack. Each second gear meshes with each rack. The support member includes a slide rod and a connector. The slide rod is slidably connected to the support rod group along the extension direction of the support rod group. One end of the connector is inserted into the end of the slide rod away from the connecting shaft and is threadedly connected to the slide rod. The other end of the connector is used to connect to the flange. The support rod assembly includes a connecting plate and two connecting rods. The two connecting rods extend radially along the connecting plate and are symmetrically connected to the connecting plate. The connecting plate is sleeved on the connecting shaft. The two connecting rods are slidably connected to the corresponding support members. The support mechanism also includes a fixing member connected to the connecting shaft for fixing the multiple support rod assemblies to the connecting shaft.

2. The prosthesis support device according to claim 1, characterized in that: The connector includes a screw and an end, with the two ends of the screw threadedly connected to the slide rod and the end, respectively.

3. The prosthesis support device according to claim 2, characterized in that: The support also includes two locking nuts, which are threaded to both ends of the screw and respectively abut against the slide rod and the end.

4. The prosthesis support device according to claim 1, characterized in that: The telescopic mechanism includes an outer connecting rod, an inner connecting rod, and a locking assembly. One end of the inner connecting rod is slidably inserted into one end of the outer connecting rod. The two ends of the outer connecting rod and the inner connecting rod that are far apart from each other are respectively connected to the two connecting shafts. The locking assembly is connected between the inner connecting rod and the outer connecting rod to lock the inner connecting rod.

5. The prosthesis support device according to claim 4, characterized in that: The locking assembly includes a tapered seat and a tapered nut. The tapered seat is connected to the end of the outer connecting rod facing the inner connecting rod. The inner connecting rod passes through the tapered seat and is inserted into the outer connecting rod. The tapered nut is sleeved on the inner connecting rod and threaded to the tapered seat to lock the inner connecting rod.

6. The prosthesis support device according to claim 4, characterized in that: The telescopic mechanism also includes two universal joints, and the outer connecting rod and the inner connecting rod are respectively connected to the corresponding connecting shaft through the two universal joints.

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