Cylindrical indoor unit stressing assembly and cylindrical indoor unit device

Abstract

A stressing assembly of a cylindrical indoor unit for underwater communication comprises a first and a second stressing structure (10, 20). The first, arranged at one end of the indoor unit, comprises several first tension components (11) arranged at one end of the indoor unit via a base (12) and distributed at intervals along the circumferential direction of the base (12). The second stressing structure (20) is arranged on a side wall of the indoor unit and comprises several second tension components (21), arranged on the side wall of the indoor unit and distributed at intervals along the circumferential direction of the indoor unit. The cooperation between the first and second stressing structures (10, 20) makes it possible to achieve a required tension strength. Figure for abstract: Fig. 1.

Description

Title of the invention: Assembly for stressing a cylindrical indoor unit and cylindrical indoor unit device Technical field

[0001] The present application relates to the field of underwater communication technology, in particular relates to a cylindrical indoor unit stressing assembly and a cylindrical indoor unit. Prior art

[0002] The field of underwater communication and underwater monitoring has developed rapidly in recent years, and underwater products are often used in underwater communication and underwater monitoring to realize communication or monitoring operations. Generally, an underwater product is composed of an indoor unit and a pressure-bearing outer cylinder, the indoor unit is provided with a stressing assembly, and the stressing assembly is used to support the indoor unit inside the pressure-bearing outer cylinder. After the indoor unit enters the pressure-bearing outer cylinder, it is necessary to adjust the clearance between the indoor unit and the pressure-bearing cylinder, and the stressing assembly can ensure that the indoor unit is uniformly supported inside the pressure-bearing cylinder.

[0003] In order to ensure mechanical strength and corrosion resistance, underwater products generally have a thick-walled cylindrical structure, and the stressing assembly is particularly important as a connection between the cylindrical inner unit and the pressure-bearing outer cylinder constituting the inner core components of underwater equipment.

[0004] The existing stressing assembly must be arranged symmetrically at two ends of the indoor unit to satisfy the tensioning conditions, and in the tensioning process, inhomogeneity of force application on one side will cause the screw jamming phenomenon, affecting the tensioning effect. In addition, the existing stressing assembly is difficult to assemble and disassemble, affecting the working efficiency. Statement of the invention

[0005] The present application provides a cylindrical indoor unit stressing assembly and a cylindrical indoor unit to solve the technical problems of the existing stressing assembly, such as inhomogeneity. force application affecting the tension effect, difficulty in assembly and disassembly, and low operating efficiency.

[0006] Thus according to the disclosure, a set for stressing a cylindrical interior unit comprises: - a first stressing structure, arranged at one end of a cylinder of the indoor unit, the first stressing structure comprising several first tension components, the first tension components being arranged at one end of the cylinder of the indoor unit via a base, the central axis of the base coinciding with the central axis of the cylinder of the indoor unit, and the first tension components being distributed with intervals along the circumferential direction of the base; - a second stressing structure, arranged at a side wall of the cylinder of the indoor unit, the second stressing structure comprising several second tension components, the second tension components being arranged on the side wall of the cylinder of the indoor unit, the second tension components being distributed with intervals along the circumferential direction of the indoor unit.

[0007] Optionally, the first voltage component comprises: - a pressure block, the pressure block being mounted to the base using a clamping screw and being configured to move, under an external clamping force of the clamping screw, in a direction approaching the base; - a sliding block, the sliding block abutting a side wall on the side of the pressure block remote from the central axis of the cylinder of the indoor unit, the sliding block being configured to be driven by the pressure block so as to produce a movement in a direction away from the central axis of the base, the pressure block comprising a first inclined plane, the first inclined plane being a contact surface between the pressure block and the sliding block, and the first inclined plane tilting towards the sliding block.

[0008] Optionally, the base is provided with a first sliding rail, and the sliding block is arranged so as to be able to slide on the first sliding rail.

[0009] Optionally, the first stressing structure further comprises a first anti-loosening member, the sliding block is provided with a first oblong stepped hole, the length direction of the first stepped hole being the same as the sliding direction of the sliding block, one end of the first anti-loosening member being disposed on the base, and the other end of the first anti-loosening member is disposed in the first oblong stepped hole.

[0010] Optionally, the sliding block has an arcuate surface on the side far from the pressure block, and circles where the arcuate surfaces of the plurality of sliding blocks are located coincide.

[0011] Optionally, the first oblong stepped hole comprises a first through hole and a second through hole, the first through hole and the second through hole are oblong holes, and the width of the first through hole is less than the width of the second through hole, the first anti-loosening member is a bolt, a threaded screw of the first anti-loosening member is located in the base and the first through hole, and the head of the first anti-loosening member is located in the second through hole, the diameter of the head of the first anti-loosening member being greater than the diameter of the threaded screw of the first anti-loosening member.

[0012] Optionally, two first stepped holes are provided, and the two first stepped holes are arranged symmetrically on both sides of the first slide rail.

[0013] Optionally, two pressure blocks are provided, and the two pressure blocks are arranged symmetrically on both sides of the first slide rail.

[0014] Optionally, one or two first stressing structures are provided and, when the number of first stressing structures is two, the two first stressing structures are arranged symmetrically at two ends of the indoor unit.

[0015] Optionally, the second voltage component comprises: - a mounting bar, the mounting bar being arranged on the cylindrical side wall of the indoor unit, the extension direction and length of the mounting bar being the same as those of the cylinder of the indoor unit; - a tension bar, which is arranged on the mounting bar by means of a second anti-loosening member, and which has the same extension direction as the mounting bar; the tension bar being provided with a second stepped hole; one end of the second anti-loosening member being connected to the cylinder of the indoor unit and the other end of the second anti-loosening member being fitted into the second oblong stepped hole; a traction member, which is arranged on the base, and which is configured to drive, under the action of an external force, the tension bar to move in a direction away from the mounting bar.

[0016] Optionally, the stressing assembly of the cylindrical indoor unit further comprises a mounting hole, the mounting hole being provided at one end of the cylinder of the indoor unit, and the tensile member is disposed through the mounting hole and one end of the tensile member is disposed at the tension bar; the mounting bar is provided with a support block and the support block is located between the mounting bar and the tension bar; the tension bar is provided with a second inclined plane on the side wall facing the mounting bar, and the second inclined plane inclines toward the direction of the tensile member; the support block is provided with a third inclined plane, the second inclined plane abuts against the third inclined plane, and an inclination angle and an inclination direction of the second inclined plane are the same as those of the third inclined plane.

[0017] Optionally, the tension bar further comprises a straight surface section and a groove section connected to each other, one end of the straight surface section away from the groove section is connected to the second inclined plane, and the groove section is disposed between the second inclined plane and the tensile member, the support block comprising a protruding end, the protruding end extending along the straight section toward the groove section, and the protruding portion of the protruding end in the direction of the tensile member is located in the groove section.

[0018] Optionally, the mounting hole is provided on the wall surface of the end of the indoor unit, and the mounting hole extends in the same direction as the tension bar, the tension member being a tension bolt, and the hole diameter of the mounting hole being larger than the outer diameter of the tension member.

[0019] Optionally, the mounting hole is formed in the base, and the mounting hole extends in the same direction as the tension bar, the tension member being a tension bolt, and the diameter of the mounting hole is greater than the outer diameter of the tension member.

[0020] Optionally, the mounting hole is an oblong stepped hole, and the length direction of the mounting hole is the same as the length direction of the second stepped hole.

[0021] Optionally, the traction member comprises a cam and a rotating shaft, the cam is arranged on the mounting bar and the cam is located between the mounting bar and the tension bar, one end of the rotating shaft is arranged on the cam and the other end of the rotating shaft is arranged on the base, and the central axis of the rotating shaft is parallel to the central axis of the cylinder of the indoor unit, the mounting bar being provided with a mounting groove extending along the circumferential direction, and the cam is located in the mounting groove.

[0022] Optionally, the traction element comprises a traction rod and a connecting rod, the traction rod is arranged on the base, and the connecting rod is rotatably connected between the traction rod and the tension bar, the base being provided with a second slide rail which extends in the same direction as the mounting bar, and the traction rod is arranged on the second slide rail.

[0023] Optionally, one end of the mounting bar is connected to the base.

[0024] Optionally, the second oblong stepped hole comprises a third through hole and a fourth through hole, the third through hole and the fourth through hole are oblong holes, and the width of the third through hole is less than the width of the fourth through hole; the second anti-loosening member is a bolt, a threaded screw of the second anti-loosening member is located in the cylinder of the indoor unit and the third through hole, and the head of the second anti-loosening member is located in the fourth through hole, the diameter of the head of the second anti-loosening member being greater than the diameter of the threaded screw of the second anti-loosening member.

[0025] The disclosure also relates to a cylindrical indoor unit device which comprises: - a cylindrical indoor unit; - a first stressing structure, which is arranged at one end of the indoor unit, the first stressing structure comprising a plurality of first tension components, the first tension components being arranged at one end of the indoor unit via a base, the central axis of the base coinciding with the central axis of the indoor unit, and the first tension components being distributed at intervals along the circumferential direction of the base; - a second stressing structure, which is arranged on a side wall of the cylinder of the indoor unit, the second stressing structure comprising a plurality of second tension components, the second tension components being arranged on the side wall of the cylinder of the indoor unit and the second tension components being distributed at intervals along the circumferential direction of the indoor unit.

[0026] The stressing assembly of the cylindrical indoor unit and the cylindrical indoor unit are provided in the present application. The stressing assembly comprises a first stressing structure and a second stressing structure. The first stressing structure is provided at one end of a cylinder of the indoor unit, and comprises a plurality of first tension components, the plurality of first tension components are provided at one end of the cylinder of the indoor unit via a base, the central axis of the base coinciding with the central axis of the cylinder of the indoor unit, and the first tension components are distributed with intervals along the circumferential direction of the base. The second stressing structure is provided on a side wall of the cylinder of the indoor unit and comprises a plurality of second tension components.The plurality of second voltage components are arranged on the side wall of the cylinder of the indoor unit, the second voltage components being distributed with intervals along the direction. circumferential of the indoor unit. The stressing assembly provided in the present application can have required tension resistance through cooperation between the first stressing structure and the second stressing structure, and can realize uniform tension when tensioning with low risk of screw jamming, ease of assembly and disassembly, and ease of operation, thereby improving operation efficiency. Brief description of the drawings

[0027] The technical solution of the present application will become more clearly apparent during the detailed description of the figures attached to the embodiments, and the variants of the figures can be obtained by those skilled in the art without creative work.

[0028] [Fig-1] [Fig.l] is a structural diagram of a stress assembly of the cylindrical indoor unit provided in the embodiments of the present application;

[0029] [Fig.2] [Fig.2] is a structural diagram of a first stressing structure provided in embodiments of the present application;

[0030] [Fig.3] [Fig.3] is a sectional view of a first voltage component provided in embodiments of the present application;

[0031] [Fig.4] [Fig.4] is a sectional view of a first stepped hole provided in the embodiments of the present application;

[0032] [Fig.5] [Fig.5] is a structural diagram of a second stressing structure provided in embodiments of the present application;

[0033] [Fig.6] [Fig.6] is a sectional view of a second stressing structure provided in embodiments of the present application;

[0034] [Fig.7] [Fig.7] is a partial enlarged view of D of [Fig.6];

[0035] [Fig.8] [Fig.8] is a first diagram of the rotational state of a cam and a rotating shaft provided in embodiments of the present application;

[0036] [Fig.9] [Fig.9] is a second diagram of the rotational state of a cam and a rotating shaft provided in the embodiments of the present application;

[0037] [Fig. 10] [Fig. 10] is a structural diagram of a draw rod and connecting rod provided in embodiments of the present application;

[0038] [Fig. 11] [Fig. 11] is a sectional view of a second stepped hole provided in embodiments of the present application.

[0039] In the figures, the references are as follows: 10 - First stress structure; 11 - First tension component; 111 - Pressure block; 11 la - First inclined plane; 112 - Clamping screw; 113 - Sliding block; 113a - First oblong stepped hole; al - First through hole; a2 - Second through hole; 12 - Base; 121 - First sliding rail; 13 - First anti-loosening member; 20 - Second stressing structure; 21 - Second tensioning component; 211 - Mounting bar; 212 - Tension bar; 212a - Second oblong stepped hole; a3 - Third through hole; a4 - Fourth through hole; 212b - Second inclined plane; 212c - Straight surface section; 212d - Groove section; 213a - Tension bolt; 213b 1 - Cam; 213b2 - Rotating shaft; 213c 1 - Pull rod; 213c2 - Connecting rod; 214 - Second anti-loosening member; 215 - Support block; 215a - Third inclined plane; 215b - Projecting end; 30 - Mounting hole; 200 - Indoor unit cylinder. Description of the embodiments

[0040] The technical solutions in the embodiments of the present application will be described in a clear and detailed manner by the following description with reference to the figures. Obviously, the described embodiments are only a part of the embodiments, instead of being exhaustive for the present application. Other embodiments based on the embodiments of the present application and obtained by a person skilled in the art without creative work should be included within the scope of protection of the present application.

[0041] In the following description, the terms "first" and "second" are illustrative, and cannot be considered as indicating or implying a degree of relative importance or a number of technical features indicated. Thus, features with the terms "first" or "second" can be considered as indicating or implying one or more features. In the description of the present application, unless otherwise indicated, the term "a plurality" means two or even more.

[0042] Furthermore, in the present application, the terms "upper", "lower", "inner", "outer" and other positional terms are defined relative to the positions of the elements in the figures, and it should be understood that these positional terms are relative concepts and used for description and clarification, which may change accordingly with the change of the positions of the elements.

[0043] The field of underwater communication and underwater surveillance has developed rapidly in recent years, and underwater products are often used in underwater communication and underwater surveillance to carry out communication or surveillance operations.

[0044] Generally, an underwater product is composed of an indoor unit and a pressure-bearing outer cylinder, the indoor unit is provided with a stressing assembly, and the stressing assembly is used to support the indoor unit inside the pressure-bearing outer cylinder. Once the indoor unit enters the inside of the pressure-bearing outer cylinder, it is necessary to adjust the clearance between the indoor unit and the pressure-bearing cylinder, and the stressing assembly can ensure that the indoor unit is evenly supported inside the pressure-bearing cylinder.

[0045] In order to ensure mechanical strength and corrosion resistance, underwater products generally have a thick-walled cylindrical structure, and the stressing assembly is particularly important as a connection between the stressing assembly and the outer pressure-bearing cylinder constituting the inner core components of underwater equipment.

[0046] The existing stressing assembly must be arranged symmetrically at two ends of the indoor unit to satisfy the tensioning conditions, and in the tensioning process, inhomogeneity of force application on one side will cause the phenomenon of screw jamming, affecting the tensioning effect. In addition, the existing stressing assembly is difficult to assemble and disassemble, affecting the working efficiency.

[0047] To solve the above technical problems, a stressing assembly of a cylindrical indoor unit is provided in the embodiments of the present application, which can realize uniform stressing of an end and a side wall of the cylinder of the indoor unit when stressing with ease of assembly and disassembly and ease of operation, thereby improving the working efficiency.

[0048] [Fig.l] is a structural diagram of the cylindrical indoor unit stressing assembly provided in the embodiments of the present application.

[0049] [Fig.2] is a structural diagram of a first stressing structure provided in embodiments of the present application.

[0050] [Fig. 3] is a sectional view of a first voltage component provided in embodiments of the present application.

[0051] Referring to Figures 1, 2 and 3, the stressing assembly of the cylindrical indoor unit comprises a first stressing structure 10 and a second stressing structure 20.

[0052] The first stressing structure 10 is disposed at one end of a cylinder of the indoor unit 200, and the first stressing structure 10 is used for the tensioning operation of the end of the cylinder of the indoor unit 200.

[0053] In particular, the first stressing structure 10 comprises a plurality of first tensioning components 11, the plurality of first tensioning components 11 is disposed at one end of the cylinder of the indoor unit 200 via a base 12, the base 12 being able to be fixedly mounted at one end of the cylinder of the indoor unit 200 using a bolt. The central axis of the base 12 coincides with the central axis of the cylinder of the indoor unit 200, and the first voltage components 11 are distributed with intervals according to the circumferential direction of the base 12.

[0054] Thus, the base 12 provides a mounting base for the first tensioning components 11, in order to achieve uniform tensioning of the end of the cylinder of the indoor unit 200 via the plurality of first tensioning components 11.

[0055] Also referring to [Fig.2], the first tension component 11 comprises a pressure block 111 and a sliding block 113.

[0056] In particular, the pressure block 111 is mounted to the base 12 by means of a clamping screw 112, the pressure block 111 may have a pressure block structure having an inclined plane, and the clamping screw 112 may be mounted in the center of the pressure block 111. In the process of tightening the clamping screw 112, the pressure block 111 may move with the clamping screw 112 in the direction close to the base 12 and a distance between the lower surface of the pressure block 111 and the upper surface of the base 12 gradually decreases. The pressure block 111 comprises two side walls, one of the side walls is close to the central axis of the cylinder of the indoor unit 200 and the other is far away from the central axis of the cylinder of the indoor unit 200.The pressure block 111 comprises a first inclined plane 111a, the first inclined plane 111a is a contact surface between the pressure block 111 and the sliding block 113, and the first inclined plane 111a is the side wall away from the central axis of the cylinder of the indoor unit 200.

[0057] That is, in the mounting process, the clamping screw 112 can be mounted on the pressure block 111 first, and then the clamping screw 112 can be mounted on the base 12. Thus, in the process where the clamping screw 112 is gradually tightened inside the base 12, the pressure block 111 can move with the clamping screw 112, and a distance between the pressure block 111 and the base 12 gradually decreases.

[0058] It should be noted that the number of the first tension component 11 in [Fig. 2] is three, and the first three tension components 11 are uniformly distributed along the circumferential direction of the base 12, the number of three of the first tension components 11 is only given for illustration, instead of limiting the number of the first tension component 11. In other specific embodiments, the number of the first tension component 11 may be two, four, five or even more. The number of the first tension component 11 may be adjusted according to the actual shape and size of the cylinder of the indoor unit 200, which is not limited here.

[0059] Referring also to Figures 2 and 3, the sliding block 113 may have a valve structure, one side of which has a flat surface structure and the other side has a curved surface structure, the flat surface structure side presses against the side wall of the pressure block 111 side away from the central axis of the cylinder of the indoor unit 200, and the curved surface structure side is away from the pressure block 111.

[0060] The planar surface structure of the sliding block 113 may be an inclined planar surface structure. Thus, the first inclined plane 11a of the pressing block 111 bears against the inclined planar surface structure of the sliding block 113, and the inclination angle and the inclination direction of the two are the same. Thus, in the process where the pressing block 111 is driven by the pressing screw 112 to be placed downward, the pressing block 111 can push, via the first inclined plane 11a, the sliding block 113 to move in the direction away from the central axis of the base 12.

[0061] In particular, the base 12 is provided with a first sliding rail 121, and in the process of sliding, the sliding block 113 moves along the first sliding rail 121 in the direction away from the central axis of the base 12. The central axis of the first sliding rail 121 may coincide with the radius of the base 12, and the first sliding rail 121 extends in the direction away from the central axis of the base 12.

[0062] In a specific embodiment, the sliding block 113 has an arc surface on the side far from the pressing block 111, and circles where the arc surfaces of the plurality of sliding blocks 113 are located coincide. Thus, in the process where the pressing block 111 pushes the sliding blocks 113 to move, a plurality of sliding blocks 113 move synchronously in the direction far from the central axis of the base 12, so that the sliding distance of the sliding block 113 can be adjusted by the sliding distance of the pressing block 111 pushed by the clamping screw 112, thereby controlling the increase of the radius of the circle where the arc surface is located by the sliding distance of the sliding block 113, so as to achieve the required size of the end tension.Obviously, in the embodiment, the sliding block 113 having an arcuate surface is adapted to the cylinder of the indoor unit 200 having a circular cross-section. In other embodiments, the shape of the sliding block 113 may be adjusted according to the shape of the cylinder of the indoor unit 200. For illustration, when the cylinder of the indoor unit 200 has a cube shape, one side of the sliding block 113 far from the pressure block is a plane, and the planes of the plurality of sliding blocks 113 may form a cubic structure.

[0063] [Fig.4] is a sectional view of the first stepped hole provided in the embodiments of the present application.

[0064] Referring also to Figures 3 and 4, the first stressing structure 10 further comprises a first anti-loosening element 13, the block sliding block 113 is provided with a first oblong stepped hole 113a, the first anti-loosening member 13 is arranged in the first oblong stepped hole 113a, the central axis of the first oblong stepped hole 113a is parallel to the central axis of the base 12, the length direction of the first oblong stepped hole 113a is identical to the sliding direction of the sliding block 113 and the extension direction of the first sliding rail 121.

[0065] The first oblong stepped hole 113a comprises a first through hole a1 and a second through hole a2, the first through hole a1 is disposed near the base 12, the first through hole a1 and the second through hole a2 are oblong holes, and the width of the first through hole a1 is less than the width of the second through hole a2.

[0066] Taking a first tension component 11 shown in [Fig.2] as an example, the sliding block 113 can be pushed by the pressing block 111 to move in the direction A, the first sliding rail 121 extends in the direction A, and the length direction of the first oblong stepped hole 113a is the direction A.

[0067] In a specific embodiment, the first anti-loosening member 13 is a bolt, one end of the first anti-loosening member 13 may be a threaded screw, and the other end of the first anti-loosening member 13 may be a head. Thus, the threaded screw of the first anti-loosening member 13 may be located in the base 12 and the first through hole a1, and the head of the first anti-loosening member 13 may be located in the second through hole a2.

[0068] In a specific embodiment, the number of the first oblong stepped hole 113a and the number of the pressure block 111 are two respectively, the two first oblong stepped holes 113a are symmetrically arranged on both sides of the first slide rail 121, the two pressure blocks 111 are symmetrically arranged on both sides of the first slide rail 121, and the two pressure blocks 111 may be located on the outer side of the two first oblong stepped holes 113a. The slide block 113 may also comprise two hollow structures, the hollow structures are arranged to correspond to the pressure block 111, and under the condition that the structural strength of the slide block 113 is satisfied, the hollow structure can effectively reduce the overall self-weight of the first stressing structure 10.

[0069] The number of the first stressing structure 10 may be one or two, when a first stressing structure 10 is arranged, the first stressing structure 10 is arranged on the left or right of the indoor unit cylinder 200, thereby realizing the tension of only one end of the indoor unit cylinder 200. The two first stressing structures 10 are arranged symmetrically on both sides of the indoor unit cylinder interior 200, which allows the tension of two ends of the cylinder of the interior unit 200 to be realized.

[0070] An operating process of the first stressing structure 10 will be described below.

[0071] In the process of tightening the clamping screw 112, the clamping screw 112 can drive the pressure block 111 to move toward the upper surface of the base 12, and a distance between the pressure block 111 and the upper surface of the base 12 gradually decreases. In this process, the first inclined plane 111a of the pressure block 111 pushes the sliding block 113, so that the sliding block 113 can move on the first sliding rail 121 in the direction away from the central axis of the base 12. In the process of moving the sliding block 113, the first anti-loosening member 13 located in the first oblong stepped hole 113a can limit the maximum sliding displacement of the sliding block 113.In the process of sliding the sliding block 113, the first oblong stepped hole 113a is driven by the sliding block 113 to move relative to the first anti-loosening member 13, so that the distance between the first anti-loosening member 13 and one end of the first oblong stepped hole 113a far from the pressing block 111 gradually increases, and the distance between the first anti-loosening member 13 and one end of the first oblong stepped hole 113a close to the pressing block 111 gradually decreases. When the sliding block 113 moves to the maximum displacement, the first anti-loosening member 13 presses against the wall surface on the side of the first oblong stepped hole 113a close to the pressing block 111, thereby limiting the continuous displacement of the sliding block 113, thereby preventing the sliding block 113 from being released.A plurality of first tensioning components 11 operate simultaneously, so that a plurality of sliding blocks 113 can be uniformly tensioned outward along the circumferential direction of the base 12, thereby ensuring the tensioning effect and tension uniformity.

[0072] The first stressing structure 10 provided in the embodiments of the present application can be mounted in a narrow space and can be used for an indoor unit cylinder 200 of various shapes, and the indoor unit cylinder 200 can have a regular shape such as a circle and a polygon, or an irregular shape such as a heterotypic shape. The height of the pressing block 111 can be controlled by the clamping screw 112, thereby controlling the sliding of the sliding block 113 along the first sliding rail 121, and during the tensioning operation, the respective heights of the pressing blocks 111 can be adjusted to the same height, and the sliding block 113 is pressed downward by the clamping screw 112, so that the outward sliding distance of each sliding block 113 is the same, thus achieving uniform tension and satisfying the support and fixing requirements. To disassemble the first tension component 11, it is sufficient to disassemble the clamping screw 112 and the first anti-loosening member 13 to remove the sliding block 113 from the narrow space with ease of assembly and disassembly and ease of operation, thereby improving the operating efficiency.

[0073] [Fig.5] is a structural diagram of the second stressing structure provided in the embodiments of the present application.

[0074] [Fig.6] is a sectional view of the second stressing structure provided in embodiments of the present application.

[0075] [Fig.7] is a partial enlarged view of D of [Fig.6].

[0076] Referring to Figures 1, 5, 6 and 7, the second stressing structure 20 comprises a plurality of second tension components 21, the plurality of second tension components 21 is arranged at the side wall of the cylinder of the indoor unit 200 with intervals along the circumferential direction of the indoor unit 200. The plurality of second tension components 21 is used for the tensioning operation of the side wall of the cylinder of the indoor unit 200.

[0077] The second tension component 21 comprises a mounting bar 211, a tension bar 212, a traction member, and a second anti-loosening member 214. The base 211 may be fixed on the side wall of the indoor unit cylinder 200 by means of a screw, and the extension direction and length of the mounting bar 211 are the same as those of the indoor unit cylinder 200. The mounting bar 211 may have a groove structure in the center, and a support block 215 is disposed inside the groove.The tension bar 212 can be arranged on the mounting bar 211 by means of a second anti-loosening member 214, and the extension direction of the tension bar 212 is the same as that of the mounting bar 211; the tension bar 212 is provided with a second oblong stepped hole 212a; one end of the second anti-loosening member 214 is connected to the indoor unit cylinder and the other end is fitted into the second oblong stepped hole 212a; one end of the second anti-loosening member 214 is fixedly connected to the wall surface of the indoor unit cylinder 200, the other end is fitted into the second oblong stepped hole 212a, thereby preventing the tension bar 212 from being released by the second anti-loosening member 214.

[0078] In particular, the extension direction of the tension bar 212 is identical to that of the mounting bar 211, and the central axes of the mounting bar 211, the tension bar 212 and the cylinder of the indoor unit 200 are located in the same plane.

[0079] The traction element is arranged on the base 12 and the traction element can drive, under the action of an external force, the tension bar 212 to move in a direction away from the mounting bar 211. This allows the tension of the side wall of the cylinder of the indoor unit 200 to be achieved.

[0080] In a specific embodiment, the cylindrical indoor unit stressing assembly further comprises a mounting hole 30, the mounting hole 30 is provided at one end of the indoor unit cylinder 200, and the tensile member is disposed through the mounting hole 30 and one end of the tensile member is disposed at the tension bar 212. The tensile member may be a tensile bolt 213a. One end of the tension bar 212 may be disposed on the mounting bar 211 using the tensile bolt 213a.The pull bolt 213a is disposed through the mounting hole 30, one end of the pull bolt is connected to the tension bar 212 and the other end is fitted on the outer side of the mounting hole 30 away from the tension bar 212, the pull bolt 213a is locked in the tension bar 212 under the action of an external force, and the tension bar 212 can move in the direction away from the mounting bar 211 in the process of locking the pull bolt 213a, thereby realizing the tension of the side wall of the indoor unit cylinder 200.

[0081] In particular, the mounting bar 211 is provided with a support block 215, the support block 215 is located between the mounting bar 211 and the tension bar 212, the tension bar 212 is provided with a second inclined plane 212b on the side wall facing the mounting bar 211, and the second inclined plane 212b inclines toward the direction of the pull bolt 213a, and the support block 215 is provided with a third inclined plane 215a whose inclination angle and inclination direction are the same as those of the second inclined plane 212b. And the second inclined plane 212b and the third inclined plane 215a are respectively contact surfaces between the tension bar 212 and the support block 215.

[0082] Thus, by arranging the second inclined plane 212b and the third inclined plane 215a bearing against each other, under the condition that the pull bolt 213a locks the tension bar 212, so that the tension bar 212 produces a displacement in the direction away from the mounting bar 211, the tension bar 212 can slide along the third inclined plane 215a, and produce a displacement in the direction B and the direction C illustrated in [Fig. 6]. The direction B may be the axial direction of the cylinder of the indoor unit 200 and the direction C may be the radial direction of the cylinder of the indoor unit 200.

[0083] The tension bar 212 further comprises a straight surface section 212c and a groove section 212d connected to each other, and one end of the straight surface section 212c away from the groove section 212d is connected to the second inclined plane 212b. That is, the straight surface section 212c is disposed between the second inclined plane 212b and groove section 212d, and groove section 212d is located between straight surface section 212c and pull bolt 213a.

[0084] The support block 215 comprises a protruding end 215b, the protruding end 215b is formed by the third inclined plane 215a which extends along the straight section 212c toward the groove section 212d and the projection of the protruding end 215b in the direction of the traction member 213a is located in the groove section 212d.Thus, after the tensioning operation is completed, under the action of an external force, the locking force between the pull bolt 213a and the tension bar 212 decreases, and the tension bar 212 can slide along the third inclined plane 215a in the opposite direction relative to the directions B and C to its initial position, and at this time the distance between the protruding end 215b and the groove section 212d gradually decreases until the protruding end 215b completely penetrates the groove section 212d, thereby preventing the tension bar 212 from being released in the direction of gravity after the tensioning operation is completed.

[0085] Thus, in the process where the pull bolt 213a locks the tension bar 212, the pull bolt 213a and the tension bar 212 can synchronously produce displacements in the direction B, so that the pull bolt 213a can also move a certain distance in the direction B in the mounting hole 30.

[0086] The size of the inner diameter of the mounting hole 30 is larger than the size of the outer diameter of the draw bolt 213a. The mounting hole 30 may be a cylindrical stepped hole or an oblong stepped hole.

[0087] In particular, the mounting hole 30 is formed in the wall surface of the cylinder of the indoor unit 200 or on the base 12. The extension direction of the mounting hole 30 being identical to the extension direction of the tension bar 212.

[0088] In a specific embodiment, the mounting hole 30 may be an oblong stepped hole, and the length direction of the mounting hole 30 is the same as the length direction of the second oblong stepped hole 212a.

[0089] [Fig.8] is a first diagram of the rotational state of the cam and the rotating shaft provided in the embodiments of the present application.

[0090] [Fig.9] is a second diagram of the rotational state of the cam and rotating shaft provided in the embodiments of the present application.

[0091] Referring to Figures 8 and 9, in another specific embodiment, the traction element may also be configured to be in the form of a cam 213bl and a rotating shaft 213b2.

[0092] In particular, the cam 213bl may be arranged vertically between the mounting bar 211 and the tension bar 212, and the rotating surface of the cam 213bl comes into contact with the mounting bar 211 and the tension bar 212. The mounting bar 211 may also be provided with a mounting groove extending along the circumferential direction, the cam 213bl is disposed in the mounting groove, and the cam 213bl can rotate relative to the mounting bar 211 and the tension bar 212 in the mounting groove.

[0093] One end of the rotating shaft 213b2 is disposed on the cam 213bl, and the other end is disposed on the base 12, and the central axis of the rotating shaft 213b2 may be parallel to the central axis of the cylinder of the indoor unit 200.

[0094] That is, in the process of performing the tensioning operation by the second tensioning component 21, the rotating shaft 213b2 can drive the cam 213bl to rotate. Taking into account the inherent characteristics of the cam 213bl, when rotating the cam 213bl, the upper end E of the side wall of the cam 213bl away from the rotating shaft 213b2 will lift the tension bar 212, so that the tension bar 212 moves in the direction away from the mounting bar 211, thereby performing the radial tension.

[0095] It should be noted that the other end of the rotating shaft 213b2 may be mounted on the pedestal 12 using a bearing, and of course the rotating shaft 213b2 may be mounted on the base 12 in other ways or using other components, which is not limited herein.

[0096] [Fig. 10] is a structural diagram of the tie rod and connecting rod provided in embodiments of the present application.

[0097] Referring to [Fig. 10], in another specific embodiment, the traction element may also be configured to be in the form of a traction rod 213cl and a connecting rod 213c2 connected to each other.

[0098] In particular, the base 12 is provided with a second slide rail (not shown in the figure), the extension direction of the second slide rail is the same as the extension direction of the mounting bar 211, and the pull rod 213cl is provided, on the side facing the base 12, with a slide rail groove matching the second slide rail, the pull rod 213cl can be arranged on the second slide rail of the base 12 using the slide rail groove, and the pull rod 213cl can slide relative to the base 12. By pushing the pull rod 213cl, the pull rod 213cl can produce radial displacement by pushing the tension bar 212 by the connecting rod 213c2, thereby realizing the radial tension.

[0099] In [Fig. 10], the number of the connecting rod 213c2 is two, and the two ends of each of the two connecting rods 213c2 are hinged with the tension bar 212 and the pull rod 213cl respectively. Obviously, the number of the connecting rod 213c2 is not limited to two, and in other embodiments, the number of the connecting rod 213c2 may be one, three or even more. At the same time, the connecting rod 213c2 may be connected to the tension bar 212 and the pull rod 213cl in other ways, provided that both ends of the connecting rod 213c2 may be rotatably connected to the tension bar 212 and the pull rod 213cl respectively, which is not limited herein.

[0100] It should be noted that the number of the second tension component 21 shown in [Fig.l] is three, and the three second tension components 21 are evenly distributed on the side wall of the indoor unit cylinder 200, the number of three of the second tension components 21 is only for illustration, instead of limiting the number of the second tension component 21 and in other specific embodiments, the number of the second tension component 21 may be two, four, five or even more. The number of the second tension component 21 may be adjusted according to the actual shape and size of the indoor unit cylinder 200, which is not limited herein. The number of the support block 215 and the number of the second anti-loosening member 214 of the second tension component 21 may be adjusted according to the actual radial sizes of the indoor unit cylinder 200.

[0101] [Fig. 11] is a sectional view of the second stepped hole provided in the embodiments of the present application.

[0102] Referring to [Fig.l 1], the second oblong stepped hole 212a comprises a third through hole a3 and a fourth through hole a4, the third through hole a3 and the fourth through hole a4 are oblong holes, and the width of the third through hole a3 is less than the width of the fourth through hole a4. The third through hole a3 is close to the mounting bar 211 and the fourth through hole a4 is far from the mounting bar 211.

[0103] The second anti-loosening member 214 may be a bolt, the threaded screw of the second anti-loosening member 214 may be located in the cylinder of the indoor unit 200 and the third through hole a3, the head of the second anti-loosening member 214 may be located in the fourth through hole a4, and the diameter of the head is larger than the diameter of the threaded screw, thereby preventing the tension bar 212 in the untensioned state from coming loose from the cylinder of the indoor unit 200.

[0104] In a specific embodiment, the end of the mounting bar 211 may be mounted on the base 12. The mounting bar 211 may be located between two adjacent sliding blocks 113. Thus, the mounting space may be used rationally. Of course, in other specific embodiments, the end of the mounting bar 211 may also be mounted in a position not connected to the base 12.

[0105] An operating process of the second stressing structure 20 will be described below, and for illustration purposes, the tensile element of the second stressing structure 20 is a tensile bolt 213a.

[0106] For illustration, the traction member is a traction bolt 213a, the mounting hole 30 is provided on the base 12, and the mounting hole 30 is an oblong stepped hole. The traction bolt 213a passes through the mounting hole 30, one threaded end of which can be threadedly connected to the tension bar 212 and the other end is fitted outside the base 12. To realize the tensioning operation of the side wall of the indoor unit cylinder 200, the end of the traction bolt 213a outside the mounting hole 30 is screwed, because the tension bar 212 is limited by the second anti-loosening member 214 and cannot rotate, the tension bar 212, under the action of an external force, can produce an upward inclined displacement tendency along the second inclined plane 212b, that is, to produce displacement in the B direction and the C direction.With the movement of the tension bar 212 in the C direction, the tension bar 212 also drives the traction bolt 213a to move synchronously. Thus, the traction member produces a C-direction displacement along the length direction of the mounting hole 30 in synchronism with the tension bar 212. In this process, when the tension bar 212 produces a B-direction displacement, the distance between the end of the tension bar 212 and the mounting hole 30 gradually decreases, and the distance between the protruding end 215b and the groove section 212d gradually increases.

[0107] After the tensioning operation of the side wall of the indoor unit cylinder 200 is completed, the traction bolt 213a is unscrewed in a reverse direction, so that the screwing force between the traction bolt 213a and the tension bar 212 decreases, the distance between the tension bar 212 and the mounting hole 30 gradually increases, and the tension bar 212 slides along the second inclined plane 212b in the reverse direction relative to the directions B and C. In this process, the distance between the protruding end 215b and the groove section 212d gradually decreases, the protruding end 215b gradually penetrates inside the groove section 212d, even if the traction bolt 213a disengages from the tension bar 212, and the tension bar 212 will not disengage in the direction of gravity.

[0108] The second stressing structure 20 provided in the present application enables the pull bolt 213a to pull the tension bar 212 during the tensioning operation, by arranging a plurality of second tension components 21 uniformly distributed along the axial direction of the cylinder of the indoor unit 200, and the tension bar 212 can move in the radial and axial directions of the cylinder of the indoor unit 200 until the tension bar 212 presses against the cylinder external pressure-bearing member. The arrangement of the second anti-loosening member 214 can prevent the tension bar 212 in the untensioned state from coming off the cylinder of the indoor unit 200. In addition, the tension bar 212 has a bending guide, which can serve as a guide during radial opening and can also ensure that the protruding end 215b of the support block 215 is located in the groove section 212d during radial shrinkage, thereby preventing the tension bar 212 from coming off under the action of gravity. To disassemble the second tensioning component 21, it is sufficient to pull the pull bolt 213a and the second anti-loosening member 214 and disassemble them to disassemble the tension bar 212.

[0109] An operating process of the second stressing structure 20 will be described below, and for illustration purposes, the traction element of the second stressing structure 20 is a cam 213bl and a rotating shaft 213b2.

[0110] To carry out the tensioning operation of the side wall of the cylinder of the indoor unit 200, the rotating shaft 213b2 is rotated and the cam 213bl is driven by the rotating shaft 213b2 to start rotating. In the process where the upper end E of the cam 213bl rotates in the direction close to the tension bar 212, the tension bar 212 is continuously lifted, and the tension bar 212 produces a displacement along the direction C until the upper end E of the cam 213bl contacts the tension bar 212 and the displacement of the tension bar 212 in the direction C is the maximum, thereby completing the radial tensioning operation. And to lower the tension bar 212, simply continue rotating the cam 213bl or rotate the cam 213bl in the opposite direction, so that the upper end E moves away from the tension bar 212.

[0111] An operating process of the second stressing structure 20 will be described below, and for illustration purposes, the traction element of the second stressing structure 20 being a traction rod 213cl and a connecting rod 213c2.

[0112] To realize the tensioning operation of the side wall of the cylinder of the indoor unit 200, the pull rod 213cl is pushed, the connecting rod 213cl pushes the connecting rod 213c2, so that the connecting rod 213c2 pushes the tension bar 212 to move, in the process of the movement of the tension bar 212, the tension bar 212 is continuously lifted by the connecting rod 213c2 and produces a displacement in the direction C until the connecting rod 213cl moves to the limit position and the displacement of the tension bar 212 in the direction C reaches the maximum, thus completing the radial tensioning operation. And to lower the tension bar 212, it is only necessary to pull the connecting rod 213cl, so that the pull rod 213cl returns to its initial position.

[0113] The stressing assembly provided in the present application can have a required tension hold through the cooperation between the first stressing structure stress 10 and the second stressing structure 20, and can realize uniform tension when tensioning with low risk of screw jamming, ease of assembly and disassembly and ease of operation, thereby improving the working efficiency.

[0114] A cylindrical indoor unit is also provided in the embodiments of the present application, which comprises an indoor unit cylinder 200 and a first stressing structure 10 and a second stressing structure 20 provided in the above embodiments. The first stressing structure 10 is disposed at one end of the indoor unit cylinder 200; the first stressing structure 10 comprises a plurality of first tension components 11, the plurality of first tension components 11 is disposed at one end of the indoor unit cylinder 200 via a base 12; the central axis of the base 12 coincides with the central axis of the indoor unit cylinder 200, and the first tension components 11 are distributed with intervals along the circumferential direction of the base 12.The second stressing structure 20 is arranged on a side wall of the cylinder of the indoor unit 200; the second stressing structure 20 comprises a plurality of second tension components 21, the plurality of second tension components 21 is arranged on the side wall of the cylinder of the indoor unit 200, the second tension components 21 being distributed with intervals along the circumferential direction of the indoor unit 200.

[0115] When operating, the cylindrical indoor unit provided in the embodiments of the present application can have required tension withstand through the cooperation between the first stressing structure 10 and the second stressing structure 20, and can realize uniform tension when tensioning with low risk of screw jamming, ease of assembly and disassembly, and ease of operation, thereby improving operation efficiency.

[0116] It should be noted that those skilled in the art may obtain other embodiment solutions based on the description and application disclosed in the embodiments. The present application is intended to cover any variations, uses or changes in adaptation of the present application, which must conform to the general principles of the present application and relate to general knowledge or means known in the conventional technical field and not mentioned by the present application. The description and embodiments are for illustrative purposes only, and the actual scope of the present application must be indicated in the claims.

[0117] It should be understood that the present application is not limited to the precise structures described above and illustrated in the figures, variants and modifications are possible within the scope of this application. The scope of this application is limited by the claims.

Claims

Claims

1. A stressing assembly for a cylindrical indoor unit, characterized in that it comprises: - a first stressing structure (10), arranged at one end of a cylinder of the indoor unit; the first stressing structure (10) comprising several first tension components (11), the first tension components (11) being arranged at one end of the cylinder of the indoor unit via a base (12), the central axis of the base (12) coinciding with the central axis of the cylinder of the indoor unit, and the first tension components (11) being distributed with intervals along the circumferential direction of the base (12); - a second stressing structure (20), arranged at a side wall of the cylinder of the indoor unit;the second stressing structure (20) comprising several second tension components (21), the second tension components (21) being arranged on the side wall of the cylinder of the indoor unit, the second tension components (21) being distributed with intervals along the circumferential direction of the indoor unit.;

2. A cylindrical indoor unit stressing assembly according to claim 1, characterized in that the first tensioning component (11) comprises: - a pressure block (111), the pressure block (111) being mounted to the base (12) by means of a clamping screw (112), the pressure block (111) being configured to move, under an external clamping force of the clamping screw (112), in a direction approaching the base (12); - a sliding block (113), the sliding block (113) abutting against a side wall on the side of the pressure block (111) remote from the central axis of the indoor unit cylinder, the sliding block (113) being configured to be driven by the pressure block (11) so as to produce a movement in a direction away from the central axis of the base (12); the pressure block (111) comprising a first inclined plane (111a), the first inclined plane (111a) being a contact surface between the pressure block (111) and the sliding block (113), and the first inclined plane (111a) tilting towards the sliding block (113).

3. A cylindrical indoor unit stressing assembly according to claim 2, characterized in that the base (12) is provided with a first sliding rail (121), and the sliding block (113) is arranged to be slidable on the first sliding rail (121).

4. A cylindrical indoor unit stressing assembly according to one of claims 2 or 3, characterized in that the first stressing structure (10) further comprises a first anti-loosening member (13), the sliding block (113) is provided with a first oblong stepped hole (113a), the length direction of the first oblong stepped hole (113a) being the same as the sliding direction of the sliding block (113), one end of the first anti-loosening member (13) being disposed on the base (12), and the other end of the first anti-loosening member (13) is disposed in the first oblong stepped hole (113a).

5. A cylindrical indoor unit stressing assembly according to any one of claims 2 to 4, characterized in that the sliding block (113) has an arc surface on the side far from the pressure block (111), and circles where the arc surfaces of the plurality of sliding blocks (113) are located coincide.

6. A cylindrical indoor unit stressing assembly according to claim 4 taken in combination with any one of claims 1 to 5, characterized in that the first oblong stepped hole (113a) comprises a first through hole (al) and a second through hole (a2), the first through hole (al) and the second through hole (a2) are oblong holes, and the width of the first through hole (al) is less than the width of the second through hole (a2); the first anti-loosening member (13) is a bolt, a threaded screw of the first anti-loosening member (13) is located in the base (12) and the first through hole (al), and the head of the first anti-loosening member (13) is located in the second through hole (a2); the diameter of the head of the first anti-loosening member (13) being greater than the diameter of the threaded screw of the first anti-loosening member (13).

7. A cylindrical indoor unit stressing assembly according to any one of claims 1 to 6 taken in combination with claims 3 and 4, characterized in that two first oblong stepped holes (113a) are provided, and the two first oblong stepped holes (113a) are arranged symmetrically on both sides of the first slide rail (121).

8. A cylindrical indoor unit stressing assembly according to any one of claims 1 to 7 in combination with claim 2 and 3, characterized in that two pressure blocks (111) are provided, and the two pressure blocks (111) are arranged symmetrically on both sides of the first slide rail (121).

9. A cylindrical indoor unit stressing assembly according to any one of claims 1 to 8, characterized in that one or two first stressing structures (10) are provided; and, when the number of first stressing structures (10) is two, the two first stressing structures (10) are symmetrically arranged at two ends of the indoor unit.

10. A cylindrical indoor unit stressing assembly according to any one of claims 1 to 9, characterized in that the second tensioning component (21) comprises: - a mounting bar (211), the mounting bar (211) being arranged on the cylindrical side wall of the indoor unit, the extension direction and length of the mounting bar (211) being the same as those of the cylinder of the indoor unit; - a tensioning bar (212), which is arranged on the mounting bar (211) by means of a second anti-loosening member (214), and which has the same extension direction as the mounting bar (211); the tension bar (212) being provided with a second oblong stepped hole (212a), one end of the second anti-loosening member (214) being connected to the cylinder of the indoor unit and the other end of the second anti-loosening member (214) being fitted into the second oblong stepped hole (212a); - a traction element, which is arranged on the base (12), and which is configured to drive, under the action of an external force, the tension bar (212) to move in a direction away from the mounting bar (211).

11. A cylindrical indoor unit stressing assembly according to claim 10, characterized in that the cylindrical indoor unit stressing assembly further comprises a mounting hole (30), the mounting hole (30) being provided at one end of the cylinder of the indoor unit; and the tensile member is disposed through in the mounting hole (30) and one end of the tensile member is disposed at the tension bar (212); the mounting bar (211) is provided with a support block (215) and the support block (215) is located between the mounting bar (211) and the tension bar (212); the tension bar (212) is provided with a second inclined plane (212b) on the side wall facing the mounting bar (211), and the second inclined plane (212b) inclines toward the tensile member;the support block (215) is provided with a third inclined plane (215a), the second inclined plane (212b) abuts against the third inclined plane (215a), and an inclination angle and an inclination direction of the second inclined plane (212b) are the same as those of the third inclined plane (215a).;

12. A cylindrical indoor unit stressing assembly according to claim 11, characterized in that the tension bar (212) further comprises a straight surface section (212c) and a groove section (212d) connected to each other, one end of the straight surface section (212c) away from the groove section (212d) is connected to the second inclined plane (212b), and the groove section (212d) is disposed between the second inclined plane (212b) and the tensile member; the support block (215) comprises a protruding end (215b), the protruding end (215b) extends along the straight section (212c) toward the groove section (212d), and the protruding portion of the protruding end (215b) in the direction of the traction member is located in the groove section (212d).

13. A cylindrical interior unit stressing assembly according to any one of claims 11 or 12, characterized in that the mounting hole (30) is provided on the wall surface of the end of the indoor unit, and the mounting hole (30) extends in the same direction as the tension bar (212), the traction member being a traction bolt (213a), and the hole diameter of the mounting hole (30) being larger than the outer diameter of the traction member.

14. A cylindrical indoor unit stressing assembly according to any one of claims 11 to 13, characterized in that the mounting hole (30) is formed in the base (12), and the mounting hole (30) extends in the same direction as the tension bar (212), the tensile member being a tensile bolt (213a), and the diameter of the mounting hole (30) being larger than the outer diameter of the tensile member.

15. A cylindrical indoor unit stressing assembly according to any one of claims 11 to 14, characterized in that the mounting hole (30) is an oblong stepped hole, and the length direction of the mounting hole (30) is the same as the height direction of the second oblong stepped hole (212a).

16. A cylindrical indoor unit stressing assembly according to any one of claims 10 to 15, characterized in that the traction member comprises a cam (213bl) and a rotating shaft (213b2), the cam (213bl) is disposed on the mounting bar (211) and the cam (213bl) is located between the mounting bar (211) and the tension bar (212); one end of the rotating shaft (213b2) is disposed on the cam (213bl) and the other end of the rotating shaft (213b2) is disposed on the base (12), and the central axis of the rotating shaft (213b2) is parallel to the central axis of the indoor unit cylinder; the mounting bar (211) being provided with a mounting groove extending along the circumferential direction, and the cam (213bl) is located in the mounting groove.

17. A cylindrical indoor unit stressing assembly according to any one of claims 10 to 16, characterized in that the traction element comprises a traction rod (213cl) and a connecting rod (213c2), the traction rod (213cl) is arranged on the base (12), and the connecting rod (213c2) is rotatably connected between the pull rod (213cl) and the tension bar (212); the base (12) is provided with a second slide rail which extends in the same direction as the mounting bar (211), and the pull rod (213cl) is arranged on the second slide rail.

18. A cylindrical indoor unit stressing assembly according to any one of claims 10 to 17, characterized in that one end of the mounting bar (211) is connected to the base (12).

19. A cylindrical indoor unit stressing assembly according to any one of claims 10 to 18, characterized in that the second oblong stepped hole (212a) comprises a third through hole (a3) ​​and a fourth through hole (a4), the third through hole (a3) ​​and the fourth through hole (a4) are oblong holes, and the width of the third through hole (a3) ​​is less than the width of the fourth through hole (a4); the second anti-loosening member (214) is a bolt, a threaded screw of the second anti-loosening member (214) is located in the indoor unit cylinder and the third through hole (a3), and the head of the second anti-loosening member (214) is located in the fourth through hole (a4); the diameter of the head of the second anti-loosening element (214) being greater than the diameter of the threaded screw of the second anti-loosening element (214).

20. A cylindrical indoor unit device, characterized in that it comprises: - a cylindrical indoor unit (200); - a first stressing structure (10), which is arranged at one end of the indoor unit (200), the first stressing structure (10) comprising a plurality of first tension components (11), the first tension components (11) being arranged at one end of the indoor unit (200) via a base (12), the central axis of the base (12) coinciding with the central axis of the indoor unit, and the first tension components (11) being distributed with intervals along the circumferential direction of the base (12); - a second stressing structure (20), which is arranged on a side wall of the indoor unit (200), the second stressing structure (20) comprising several second tension components (21), the second tension components (21) being arranged on the side wall of the indoor unit, the second tension components (21) being distributed with intervals along the circumferential direction of the indoor unit.

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