A steel structure house assembly connection component
By designing a steel structure house assembly and connection connection component that includes a micro-adjustment structure and a connecting combination structure, the problem of inconvenient fine adjustment of the steel structure house assembly and connection connection components in the prior art is solved and the inconvenient extrusion combination between the steel structure structure is inconvenient when the plate body is placed later, fine fine adjustment and stable connection of the steel structure components are achieved, and construction efficiency is improved.
Patent Information
- Application Number
- CN202210407549.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- Filing Date
- 2022-04-19
- Publication Date
- 2025-04-01
- Estimated Expiration
- 2042-04-19
AI Technical Summary
The assembly and connection parts of existing steel structure houses are inconvenient for fine adjustment when the plate body is placed in the later stage, and are prone to misalignment, and are not conducive to the extrusion combination between steel structures, affecting construction efficiency.
A steel structure house assembly connection component is designed, and a combination connection method is adopted for the first steel structure component and the second steel structure component, and fine-tuning and combined connection are achieved through the first micro-adjustment structure and the connection combination structure. The first micro-adjustment structure includes a driving control part and a stable control part. The driving control part is adjusted through components such as a roof rack, threaded guide column, and a tooth plate. The stable control part ensures stability through components such as mating blocks and articulated columns.
The fine adjustment and stable connection of steel structural components are achieved, the misalignment is avoided, the combined installation efficiency between steel structures is improved, and the overall construction stability and production efficiency are enhanced.
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Figure CN114575459B_ABST
Abstract
Description
Technical Field
[0001] The invention relates to the technical field of steel structure house equipment, in particular to an assembling connection component for a steel structure house. Background Art
[0002] Steel structure is a structure made of steel materials and is one of the main types of building structures. The structure is mainly composed of steel beams, steel columns, steel trusses and other components made of steel sections and steel plates, and adopts rust removal and rust prevention processes such as silanization, pure manganese phosphating, water washing and drying, and galvanizing. The components or parts are usually connected by welds, bolts or rivets. Because of its light weight and simple construction, it is widely used in large factories, venues, super high-rise buildings and other fields. Steel structures are prone to rust. Generally, steel structures need to be rust-free, galvanized or painted, and maintained regularly.
[0003] According to Chinese Patent No. CN201921141919.7, the utility model relates to the technical field of steel structures, specifically a steel structure house assembly connection component, including an H-shaped steel structure, a connecting plate is provided on the surface of the H-shaped steel structure, a guide groove is provided on the surface of the connecting plate, a clamping groove is provided on the surface of the guide groove, a clamping block is slidably connected inside the clamping groove, a connecting block is slidably connected inside the guide groove, the clamping block and the connecting block are connected, the connecting block is fixed on the surface of the gusset plate, the gusset plate is inserted inside the through opening, and bolts are provided on the surface of the gusset plate; the beneficial effect is: the steel structure house assembly connection component proposed by the utility model is docked in the through openings of two H-shaped steel structures by means of the gusset plate, and then fixed by means of bolts to realize the connection of the two H-shaped steel structures, which is simple and convenient to operate, and easy to disassemble. However, the current steel structure house assembly connection components have the following problems:
[0004] It is inconvenient to make fine adjustments when placing the panels later, which can easily cause misalignment and is not conducive to the overall construction. It will cause certain inconveniences. At the same time, it is not convenient to perform extrusion combination between steel structures, which is not conducive to the specific combination installation work and needs to be improved. Summary of the invention
[0005] The purpose of the present invention is to provide a steel structure house assembly connection component to solve the problems raised in the above background technology.
[0006] To achieve the above object, the present invention provides the following technical solution: a steel structure house assembly connection component, comprising a first steel structure component, a second steel structure component being fixedly connected to a side end of the first steel structure component;
[0007] The first steel structure component comprises a first micro-adjustment structure and a connection combination structure, wherein the first micro-adjustment structure is arranged at the center position of the inner end of the first steel structure component, and the side end position of the first micro-adjustment structure is fixedly connected with the connection combination structure;
[0008] The first micro-adjustment structure comprises a driving and regulating part and a stabilizing and regulating part, wherein the driving and regulating part is arranged at the inner end center of the first micro-adjustment structure, and the upper end of the driving and regulating part is movably connected with the stabilizing and regulating part;
[0009] The driving and regulating part comprises a top plate frame, a first threaded guide column, a first toothed disc, a second toothed disc, a limit driving frame, an adapting slot tube, a frame plate structure layer, a first hinge column and a second hinge column, the second toothed disc and the limit driving frame are arranged at the inner end center position of the driving and regulating part, the side end of the second toothed disc is meshedly connected with the first toothed disc, the upper end of the first toothed disc is fixedly connected with the first threaded guide column, the top of the first threaded guide column is fixedly connected with the top plate frame, the adapting slot tube is arranged at the inner end bottom position of the driving and regulating part, the center position of the adapting slot tube is hingedly arranged with the first hinge column, the upper end of the first hinge column is hingedly connected with the second hinge column, the first threaded guide column passes through the top position of the frame plate structure layer, and the first hinge column is hinged on the frame plate structure layer;
[0010] The stable adjustment part comprises a first matching block and a second matching block, and the side end of the first matching block is fixedly connected to the second matching block;
[0011] The first matching block includes a top plate groove plate, a first thread groove plate, a second thread groove plate, a mounting frame plate and a horizontal plate connecting column frame, the upper end of the mounting frame plate is fixedly connected to the horizontal plate connecting column frame, the top of the horizontal plate connecting column frame is fixedly connected to the top plate groove plate, and the lower end of the top plate groove plate is provided with a first thread groove plate and a second thread groove plate;
[0012] The connection combination structure includes a second threaded guide column, a conical extrusion seat, a derivation connection frame, an auxiliary fixed groove frame, a third hinged column, a stable support base and a steel plate connection layer. The center of the second threaded guide column is threadedly connected to the conical extrusion seat. The side end of the conical extrusion seat is in contact with the derivation connection frame. The side end of the derivation connection frame is fixedly connected to the auxiliary fixed groove frame. The bottom end of the derivation connection frame is fixedly connected to the third hinged column. The bottom of the third hinged column is hinged to the stable support base. The steel plate connection layer is arranged at the rear end of the stable support base.
[0013] Preferably, the second steel structure component includes a second micro-adjustment structure and a matching installation frame, and the side end position of the second micro-adjustment structure is fixedly connected to the matching installation frame.
[0014] Preferably, the top position of the second hinged column is hinged to the center of the mounting frame plate, and the stabilizing adjustment part adjusts the displacement on the frame plate structural layer through the first hinged column and the second hinged column.
[0015] Preferably, the top of the first threaded guide column is provided with threads, and the first threaded guide column is threadedly connected with the first thread groove disk and the second thread groove disk through threads, and the first thread groove disk and the second thread groove disk are fixed at the center position of the cross plate connecting column frame.
[0016] Preferably, the derivation connecting frame is fixedly connected to the matching installation connecting frame through an auxiliary fixing slot frame, and a slot body is provided at the center of the matching installation connecting frame, and the matching installation connecting frame is plug-connected with the second threaded guide column.
[0017] Preferably, the conical extrusion seat, the derivation connection frame, the auxiliary fixing groove frame, the third hinged column, and the stable support pedestal are symmetrically arranged through a steel plate connection layer.
[0018] Preferably, the derivation connection frame adopts a two-piece design, and the derivation connection frame can be detachably arranged through an auxiliary fixing slot frame.
[0019] Preferably, a cushion block is provided at the connection position of the frame plate structure layer to the limit driving frame, and a groove body for the limit driving frame to rotate is opened on the cushion block.
[0020] Compared with the prior art, the present invention has the following beneficial effects:
[0021] 1. By installing the first steel structure component, the first steel structure component is connected by the first micro-adjustment structure and the connection combination structure to realize the installation and setting of the first steel structure component. The first micro-adjustment structure serves the purpose of supporting the connection, which is convenient for micro-end regulation. The connection combination structure is convenient for connection to realize the combined connection with the second steel structure component. The first micro-adjustment structure is combined by the driving regulation part and the stable regulation part. The stable regulation part can adjust the position through the driving regulation part, and the plate body can be installed on the stable regulation part to realize separation and help to block the internal structure. The driving regulation part is connected by the top plate frame, the first threaded guide column, the first toothed disc, the second toothed disc, the limit driving frame, the adapter groove tube, the frame plate structure layer, the first hinged column, and the second hinged column. The first toothed disc can be driven to rotate by the driving of the second toothed disc to realize the driving of the first threaded guide column, so that The stable adjustment part is driven to adjust on the driving and regulating part, and the setting of the first hinge column and the second hinge column is convenient for following the regulation work, and the stability of the connection is enhanced. The setting of the adapter groove tube can cooperate with the top of the driving and regulating part, which is convenient for the purpose of sleeve combination. The stable adjustment part is connected by the first matching block and the second matching block. The first matching block realizes the height adjustment purpose of the installation frame through the connection with the driving and regulating part, which is convenient for regulation production. The setting of the connection combination structure is convenient for the combination of the first steel structure component and the second steel structure component. The derivation connection frame can be extruded by rotating the conical extrusion seat on the second threaded guide column, so that the derivation connection frame pushes the auxiliary fixed groove frame to reach a suitable position, which is convenient for fixing with bolts. The third hinge column and the stable support base at the bottom position are convenient for support. The setting of the steel plate connection layer is convenient for the side load-bearing work.
[0022] 2. By installing the second steel structure component, the second steel structure component is conveniently combined with the first steel structure component to achieve the purpose of efficient assembly. The second steel structure component is matched with the first steel structure component through the installation of the connecting frame, connected through the second threaded guide column, and reinforced with bolts to achieve a continuous combination, which is conducive to the realization of prefabricated steel structure production and processing work, and better improves the overall construction production efficiency. BRIEF DESCRIPTION OF THE DRAWINGS
[0023] Figure 1 It is a schematic diagram of the main structure of the present invention;
[0024] Figure 2 It is a structural schematic diagram of the first steel structure component of the present invention;
[0025] Figure 3 is a structural schematic diagram of a first fine-adjustment structure of the present invention;
[0026] Figure 4 This is a schematic diagram of the structure of the driving and regulating part of the present invention;
[0027] Figure 5 It is a structural schematic diagram of the stabilizing and adjusting part of the present invention;
[0028] Figure 6 It is a structural schematic diagram of the first matching block of the present invention;
[0029] Figure 7 It is a structural schematic diagram of the connection combination structure of the present invention;
[0030] Figure 8 It is a schematic structural diagram of the second steel structure component of the present invention.
[0031] In the figure: 1-first steel structure component; 2-second steel structure component; 3-first micro-adjustment structure; 4-connection combination structure; 5-driving control part; 6-stable adjustment part; 7-top plate frame; 8-first threaded guide column; 9-first toothed disc; 10-second toothed disc; 11-limiting driving frame; 12-adapting groove tube; 13-frame plate structure layer; 14-first hinged column; 15-second hinged column; 16-first matching block; 17-second matching block; 18-top plate groove disc; 19-first threaded groove disc; 20-second threaded groove disc; 21-installing frame plate; 22-cross plate connecting column frame; 23-second threaded guide column; 24-conical extrusion seat; 25-derivation connecting frame; 26-auxiliary fixing groove frame; 27-third hinged column; 28-stable support pedestal; 29-steel plate connecting layer; 30-second micro-adjustment structure; 31-matching installation frame. DETAILED DESCRIPTION
[0032] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.
[0033] See also Figure 1-8 The present invention provides a technical solution: a steel structure house assembly connection component, comprising a first steel structure component 1, a second steel structure component 2 is fixedly connected to the side end of the first steel structure component 1, and the connection combination of the first steel structure component 1 and the second steel structure component 2 facilitates the overall connection regulation and the splicing production work;
[0034] The first steel structure component 1 includes a first micro-adjustment structure 3 and a connection combination structure 4. The first micro-adjustment structure 3 is arranged at the center of the inner end of the first steel structure component 1. The side end of the first micro-adjustment structure 3 is fixedly connected with the connection combination structure 4. Through the connection combination of the first micro-adjustment structure 3 and the connection combination structure 4, the construction and installation of the first steel structure component 1 is realized, which is convenient for internal fine-tuning and specific construction work.
[0035] The first fine-adjustment structure 3 includes a driving and regulating part 5 and a stabilizing and regulating part 6. The driving and regulating part 5 is arranged at the inner end center of the first fine-adjustment structure 3. The upper end of the driving and regulating part 5 is movably connected with the stabilizing and regulating part 6. The structural arrangement of the driving and regulating part 5 and the stabilizing and regulating part 6 facilitates the driving and regulating function, helps to carry out overall coordinated regulation, and realizes an integrated operation specification.
[0036] The driving and regulating part 5 includes a top plate frame 7, a first threaded guide column 8, a first toothed disc 9, a second toothed disc 10, a limit driving frame 11, an adapting groove tube 12, a frame plate structure layer 13, a first hinge column 14 and a second hinge column 15. The second toothed disc 10 and the limit driving frame 11 are arranged at the inner end center position of the driving and regulating part 5, the side end of the second toothed disc 10 is meshedly connected with the first toothed disc 9, the upper end of the first toothed disc 9 is fixedly connected with the first threaded guide column 8, the top of the first threaded guide column 8 is fixedly connected with the top plate frame 7, the adapting groove tube 12 is arranged at the inner end bottom position of the driving and regulating part 5, and the adapting groove tube 12 is arranged at the inner end bottom position of the driving and regulating part 5. The center position of the groove tube 12 is hingedly arranged with the first hinge column 14, the upper end of the first hinge column 14 is hingedly connected with the second hinge column 15, the first threaded guide column 8 passes through the top position of the frame plate structure layer 13, and the first hinge column 14 is hinged on the frame plate structure layer 13. Through the top plate frame 7, the first threaded guide column 8, the first gear plate 9, the second gear plate 10, the limit drive frame 11, the adapter groove tube 12, the frame plate structure layer 13, the first hinge column 14 and the second hinge column 15, the combined connection is convenient for driving, which is helpful for the internal accompanying movement and better realizes the stable support adjustment function;
[0037] The stabilizing and adjusting part 6 includes a first matching block 16 and a second matching block 17. The side end of the first matching block 16 is fixedly connected to the second matching block 17. The combination of the first matching block 16 and the second matching block 17 facilitates the connection and combination, which is helpful for combined processing and production work.
[0038] The first matching block 16 includes a top plate groove plate 18, a first thread groove plate 19, a second thread groove plate 20, a mounting frame plate 21 and a horizontal plate connecting column frame 22. The upper end of the mounting frame plate 21 is fixedly connected to the horizontal plate connecting column frame 22, and the top of the horizontal plate connecting column frame 22 is fixedly connected to the top plate groove plate 18. The lower end of the top plate groove plate 18 is provided with a first thread groove plate 19 and a second thread groove plate 20. The top plate groove plate 18, the first thread groove plate 19, the second thread groove plate 20, the mounting frame plate 21 and the horizontal plate connecting column frame 22 are combined and connected to facilitate the coordinated use and realize an integrated connection combination;
[0039] The connection combination structure 4 includes a second threaded guide column 23, a conical extrusion seat 24, a derivation connection frame 25, an auxiliary fixed groove frame 26, a third hinged column 27, a stable support base 28 and a steel plate connection layer 29. The center of the second threaded guide column 23 is threadedly connected to the conical extrusion seat 24, and the side end of the conical extrusion seat 24 is in contact with the derivation connection frame 25. The side end of the derivation connection frame 25 is fixedly connected to the auxiliary fixed groove frame 26, and the bottom end of the derivation connection frame 25 is fixedly connected to the third hinged column 27. The bottom of the third hinged column 27 is hingedly arranged with the stable support base 28. The steel plate connection layer 29 is arranged at the rear end position of the stable support base 28. Through the installation combination of the structure, the integrated connection is better realized, which facilitates the connection reinforcement work.
[0040] The second steel structure component 2 includes a second micro-adjustment structure 30 and a matching installation frame 31. The side end position of the second micro-adjustment structure 30 is fixedly connected to the matching installation frame 31. The top position of the second hinge column 15 is hingedly set with the center of the installation frame plate 21. The stable adjustment part 6 adjusts the displacement on the frame plate structure layer 13 through the first hinge column 14 and the second hinge column 15. The top of the first threaded guide column 8 is provided with a thread, and the first threaded guide column 8 is threadedly connected with the first threaded groove plate 19 and the second threaded groove plate 20 through the thread. The first threaded groove plate 19 and the second threaded groove plate 20 are fixed at the center position of the cross plate connecting column frame 22. The derivation connection frame 25 is fixedly connected with the matching installation frame 31 through the auxiliary fixed groove frame 26, and the center of the matching installation frame 31 is provided with a groove body. The matching installation frame 31 is plug-in-arranged with the second threaded guide column 23. The conical extrusion seat 24, the derivation connection frame 25, the auxiliary fixing groove frame 26, the third hinge column 27, and the stable support base 28 are symmetrically arranged through the steel plate connection layer 29. The derivation connection frame 25 adopts a two-piece design, and the derivation connection frame 25 can be detachably arranged through the auxiliary fixing groove frame 26. The frame plate structure layer 13 is provided with a pad at the connection position of the limit drive frame 11, and the pad is provided with a groove for the limit drive frame 11 to rotate. By installing the second steel structure component 2, the setting of the second steel structure component 2 is convenient for combination with the first steel structure component 1 to achieve the purpose of efficient assembly. The installation connecting frame 31 is adapted to the first steel structure component 1, and the connection is achieved through the second threaded guide column 23. It is reinforced by bolts to achieve a continuous combination, which is conducive to realizing the production and processing of assembled steel structures and better improving the overall construction production efficiency.
[0041] Working principle: when work is needed, the user installs and combines the first steel structure component 1 and the second steel structure component 2 to achieve the connection between the first steel structure component 1 and the second steel structure component 2, and realizes the overall construction and installation work. The first steel structure component 1 and the second steel structure component 2 are combined and connected through the second threaded guide column 23, the tapered extrusion seat 24, the derivation connection frame 25, the auxiliary fixing groove frame 26, the third hinged column 27, the stable support base 28, the steel plate connection layer 29, and the matching installation frame 31 to achieve the overall installation. The second threaded guide column 23 and the matching installation frame 31 are connected to each other, and then the tapered extrusion seat 24 is rotated. The tapered extrusion seat 24 can be rotated on the second threaded guide column 23, and the rotation of the tapered extrusion seat 24 will squeeze the derivation connection frame 25 to achieve the symmetrical movement of the derivation connection frame 25. The bottom of the derivation connection frame 25 can be adjusted through the third hinged column 27 and the stable support base 28. When it reaches a suitable position, it can be The auxiliary fixing slot frame 26 and the bolts are used to realize the specific fixation between the first steel structure component 1 and the second steel structure component 2, so as to facilitate the purpose of combined connection. The user can set a plate body on the installation frame plate 21 to realize internal barrier. When adjustment is needed, the user can drive the second gear disc 10 to rotate by screwing the limit drive frame 11, and act on the first gear disc 9, so that the top plate frame 7 and the first threaded guide column 8 follow the movement, and the rotation of the first threaded guide column 8 will act on the first threaded groove disc 19 and the second threaded groove disc 20, driving the installation frame plate 21 and the cross plate connecting column frame 22 to move, and the installation frame plate 21 is convenient for following operation through the hinged setting with the first hinge column 14 and the second hinge column 15, so as to realize the function of fine adjustment, and realize the purpose of reinforcement and fixation through the later screws, so as to realize the combined connection of the steel structure, and the adapter groove pipe 12 can be combined with the top of the top plate frame 7 to realize the purpose of integrated connection combination, thereby realizing the overall support connection and completing the work.
[0042] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.
Claims
1. A steel structure house assembly connection component, comprising a first steel structure component (1), characterized in that: The side end of the first steel structure component (1) is fixedly connected to a second steel structure component (2); The first steel structure component (1) comprises a first micro-adjustment structure (3) and a connection combination structure (4), wherein the first micro-adjustment structure (3) is arranged at the center position of the inner end of the first steel structure component (1), and the side end position of the first micro-adjustment structure (3) is fixedly connected to the connection combination structure (4); The first micro-adjustment structure (3) comprises a driving and regulating part (5) and a stabilizing and regulating part (6); the driving and regulating part (5) is arranged at the inner end center of the first micro-adjustment structure (3); and the upper end of the driving and regulating part (5) is movably connected to the stabilizing and regulating part (6); The driving and regulating part (5) comprises a top plate frame (7), a first threaded guide column (8), a first toothed disc (9), a second toothed disc (10), a limit driving frame (11), an adapting groove tube (12), a frame plate structure layer (13), a first hinge column (14) and a second hinge column (15), wherein the second toothed disc (10) and the limit driving frame (11) are arranged at the inner end center position of the driving and regulating part (5), the side end of the second toothed disc (10) is meshingly connected to the first toothed disc (9), and the upper end of the first toothed disc (9) is fixedly connected to the A first threaded guide column (8) is provided, the top of the first threaded guide column (8) is fixedly connected to a top plate frame (7), the adapting groove tube (12) is arranged at the bottom position of the inner end of the driving and regulating part (5), the center position of the adapting groove tube (12) is hingedly arranged with a first hinge column (14), the upper end of the first hinge column (14) is hingedly connected to a second hinge column (15), the first threaded guide column (8) passes through the top position of the frame plate structure layer (13), and the first hinge column (14) is hinged on the frame plate structure layer (13); The stabilizing adjustment portion (6) comprises a first matching block (16) and a second matching block (17), and a side end of the first matching block (16) is fixedly connected to the second matching block (17); The first matching block (16) comprises a top plate groove plate (18), a first thread groove plate (19), a second thread groove plate (20), a mounting frame plate (21) and a transverse plate connecting column frame (22); the upper end of the mounting frame plate (21) is fixedly connected to the transverse plate connecting column frame (22); the top of the transverse plate connecting column frame (22) is fixedly connected to the top plate groove plate (18); and the lower end of the top plate groove plate (18) is provided with the first thread groove plate (19) and the second thread groove plate (20); The connection assembly structure (4) comprises a second threaded guide column (23), a conical extrusion seat (24), a derivation connection frame (25), an auxiliary fixing groove frame (26), a third hinged column (27), a stable support seat (28) and a steel plate connection layer (29), wherein the center of the second threaded guide column (23) is threadedly connected to the conical extrusion seat (24), the side end of the conical extrusion seat (24) is contact-connected with the derivation connection frame (25), the side end of the derivation connection frame (25) is fixedly connected to the auxiliary fixing groove frame (26), the bottom end of the derivation connection frame (25) is fixedly connected to the third hinged column (27), the bottom of the third hinged column (27) is hingedly arranged to the stable support seat (28), and the steel plate connection layer (29) is arranged at the rear end of the stable support seat (28); The top of the first threaded guide column (8) is provided with a thread, and the first threaded guide column (8) is threadedly connected to the first threaded groove plate (19) and the second threaded groove plate (20) through the thread, and the first threaded groove plate (19) and the second threaded groove plate (20) are fixed at the center position of the horizontal plate connecting column frame (22); The derivation connection frame (25) is fixedly connected to the matching installation frame (31) via an auxiliary fixing slot frame (26), and a slot body is provided at the center of the matching installation frame (31). The matching installation frame (31) is plug-connected with the second threaded guide column (23).
2. The steel structure house assembly connection component according to claim 1, characterized in that: The second steel structure component (2) comprises a second micro-adjustment structure (30) and a matching installation connecting frame (31), and the side end of the second micro-adjustment structure (30) is fixedly connected to the matching installation connecting frame (31).
3. The steel structure house assembly connection component according to claim 2, characterized in that: The top position of the second hinged column (15) is hingedly arranged at the center of the mounting frame plate (21), and the stabilizing adjustment portion (6) adjusts displacement on the frame plate structural layer (13) through the first hinged column (14) and the second hinged column (15).
4. The steel structure house assembly connection component according to claim 1, characterized in that: The derivation connection frame (25) adopts a two-piece design, and the derivation connection frame (25) can be detachably arranged via the auxiliary fixing slot frame (26).
5. The steel structure house assembly connection component according to claim 1, characterized in that: The frame plate structure layer (13) is provided with a cushion block at a connection position with the limit drive frame (11), and a groove body for the limit drive frame (11) to rotate is provided on the cushion block.
Citation Information
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