Built-in disassembly and assembly structure and detachable seat

Abstract

The invention belongs to the technical field of seats, and particularly relates to a built-in disassembly and assembly structure and a detachable seat. The built-in disassembly and assembly structure comprises a first assembly part and a second assembly part, and further comprises a first warning tone triggering device. The triggering device comprises a first sound production surface, a first impact surface and an energy storage part; the first impact surface is located on the impact piece, and the impact stroke of the impact piece is at least partially located on the motion trail of the inserting part; the first sound production surface is located on the insertion part, and the insertion part is provided with an impact groove for accommodating the impact stroke; in the installation process, only when the position of the impact groove is matched with the impact stroke, the first impact surface can strike the first sound production surface and give out a first prompt tone to prompt that the installation is in place. Under the condition that a user cannot visually observe installation, the installation state of the seat can be prompted to the user through the sound triggering device, and meanwhile the seat has the advantages of being easy and convenient to operate and rapid in installation.

Description

Technical Field

[0001] The present invention belongs to the technical field of seats, and particularly relates to an internal disassembly and assembly structure and a detachable seat. Background Art

[0002] A backrest chair is a general term for chairs with a backrest structure. In order to save storage and transportation space, the design of detachable backrest and seat has become the main type of backrest chairs. The disassembly and assembly structures of detachable backrest chairs are of two forms, external and internal. The external disassembly and assembly structure is convenient for users to directly assemble, but it is not beautiful in appearance; moreover, the disassembly and assembly structural parts are usually made of metal and are easily rusted when exposed outside. The internal disassembly and assembly structure hides the metal parts and has a beautiful appearance, but users cannot directly observe the installation situation, and it is easy to damage the structure due to excessive force during installation, or the structure becomes loose due to improper installation, resulting in accidents during use. Summary of the Invention

[0003] In view of this, the present invention hopes to provide an internal disassembly and assembly structure and a detachable seat. This structure firstly retains the beauty of the internal disassembly and assembly structure and the protection of structural parts, and secondly has the characteristics of easy observation of the installation state of the external disassembly and assembly structure.

[0004] The present invention is realized through the following technical solutions: An internal disassembly and assembly structure, comprising a first fitting and a second fitting, characterized in that: The first fitting includes a plugging part, the second fitting includes an installation box, and the plugging part has an installation track for moving in the installation box; The internal disassembly and assembly structure further includes: A triggering device for the first prompt sound, the triggering device includes a first sounding surface, a first impact surface and an energy storage member; during the installation process, the first impact surface impacts the first sounding surface to emit the first prompt sound, indicating that the installation is in place; The first impact surface is located on an impact member; the impact member has a movement track for reciprocating movement within an impact stroke range, and at least part of the impact stroke is located on the movement track of the plugging part; The first sounding surface is located on the plugging part; the plugging part is provided with an impact groove for accommodating the impact stroke, and the first sounding surface forms the bottom of the impact groove; The energy storage member is connected to the impact member, and the energy storage member compresses its own shape through an energy storage stroke to reserve space for the impact stroke.

[0005] In this solution, a sound trigger device is provided in the built-in disassembly and assembly structure to prompt the user about the installation status of the seat. The impact action requires the impact stroke to store energy. In this solution, the impact stroke of the impact member is set on the movement path of the insertion part, so there is an association between the sound trigger action and the installation action. The impact groove structure that accommodates the impact stroke is arranged on the insertion part. Only when the position of the impact groove matches the impact stroke can the first impact surface strike the first sound-emitting surface and the first prompt sound be emitted. Further, the impact member is connected to an energy storage member. The energy storage member compresses its own shape through the energy storage stroke to reserve space for the impact stroke, making the impact process have greater energy and the first prompt sound clearer. The energy storage process of the energy storage member can be manually controlled by the user or an auxiliary structure can be set for automatic control.

[0006] Preferably, a energy storage slope is provided at the front end of the insertion part, and the energy storage slope has a shape that compresses the energy storage member along the installation trajectory.

[0007] This solution further reduces the operations of the user during the installation step. When not installed, the energy storage member spontaneously is in an uncharged or lowest charged state and reserves space for the energy storage stroke; the space reserved for the energy storage stroke occupies the position of the impact stroke, and at this time the impact member is pushed by the energy storage member to the end point of the impact stroke. During the installation process, the energy storage slope at the front end of the insertion part moves along the installation trajectory and contacts the impact member before the impact groove. The energy storage slope gradually occupies the impact stroke through its gradually changing shape, pushing the impact member gradually back from the end point of the impact stroke to the starting point; when the impact member is pushed back, it squeezes the energy storage member, causing it to compress its own shape to make room for the impact stroke and at the same time storing energy. The user does not need to manually charge the energy storage member nor visually determine the alignment relationship between the impact groove and the positioning hole.

[0008] Preferably, it further includes a calibration component; the calibration component includes an activity cavity that houses the energy storage member and the impact member, and the activity cavity has a cavity shape that conforms to the impact stroke and the energy storage stroke.

[0009] This solution is a built-in disassembly and assembly structure, and the user cannot directly observe the positional relationship of each structure. Therefore, a calibration component is provided outside the energy storage member and the impact member to house the energy storage member and the impact member in the activity cavity. The axis of the activity cavity is the same as the axes of the impact stroke and the energy storage stroke. On the one hand, the activity cavity can calibrate the movement trajectory of the impact member during the energy storage process and the energy release process to prevent the posture of the impact member from being skewed; on the other hand, it isolates the movement paths of the energy storage member and the impact member to prevent the filling material of the seat, etc. from blocking their movement paths.

[0010] Preferably, the tail end of the impact member is exposed outside the movable cavity, and a second impact surface facing the movable cavity is provided at the tail end; a second sound - emitting surface facing the second impact surface is provided on the outer wall of the movable cavity; during the installation process, the second impact surface impacts the second sound - emitting surface to emit a second prompt sound, indicating that the installation is in place.

[0011] Since the impact member has a movement trajectory of moving back and forth in the movable cavity, this solution constructs a second set of sound - emitting structures using this relative movement relationship. In the second set of sound - emitting structures, the second impact surface is located on the impact member, and the second sound - emitting surface is located on the surface of the movable cavity; they are arranged facing each other, and the second impact surface touches the second sound - emitting surface as the impact stroke progresses, generating a second prompt sound.

[0012] Preferably, the impact member is connected with a control member; the second impact surface is arranged on the control member.

[0013] This solution combines the control member for operating the impact member with the sound - emitting structure of the second prompt sound, using the control member as the carrier of the second impact surface. At this time, the control member undertakes multiple functions: during the disassembly process, the user needs to manually pull the impact member for energy storage, and the setting of the control member facilitates the user's operation, being light and labor - saving. During the installation process, the second impact surface of the control member collides with the second sound - emitting surface on the outer wall of the movable cavity when the energy - storage member releases energy, generating a second set of prompt sounds.

[0014] Preferably, a reverberation cavity is reserved between the installation box and the insertion part.

[0015] Further considering that the filling layer in the finished seat may weaken the sound prompt during the installation process, a reverberation cavity is set between the installation box of the second fitting and the insertion part of the first fitting to strengthen the first prompt sound.

[0016] Preferably, the starting position of the impact stroke is located at the position of the box body of the installation box.

[0017] To avoid the impact sound between the impact member and other parts of the first fitting from misleading the user, this solution restricts the impact stroke, indirectly restricting the energy - storage effect. The starting position of the impact stroke is located on the adjacent side of the installation box. During the process of the insertion part sliding into the installation box, if the position of the impact groove does not match the position of the impact stroke, the energy - storage member cannot release energy, the impact member cannot obtain sufficient energy, and thus cannot emit an impact sound.

[0018] Preferably, the installation box includes an opening adjacent to the impact member.

[0019] The first prompt sound is reflected back into the box body by the inner wall of the installation box and is concentrated on the opening side for propagation, improving the sound - amplification effect.

[0020] A detachable seat, comprising a backrest frame and a seat frame, characterized in that the backrest frame and the seat frame are connected by the disassembly and assembly structure described in any one of the foregoing items.

[0021] Preferably, the detachable seat further comprises a filler layer; the control member and the second sounding surface are exposed outside the filler layer.

[0022] In a finished seat, if a filler layer composed of multiple composite materials is selected, the first prompt sound may be absorbed by the filler layer during transmission. Therefore, the sounding structure of the second prompt sound is arranged outside the filler layer to ensure the sound prompt effect.

[0023] The present invention proposes a built-in disassembly and assembly structure. In the case where the user cannot visually observe, a sound trigger device is set to remind the user of the installation state of the seat. The impact stroke of the impact member is located on the movement path of the insertion part. Only when the impact groove matches the impact stroke position, the first impact surface can strike the first sounding surface to emit a prompt sound. The impact member is connected to the energy storage member, and the directions of the impact stroke and the energy storage stroke are mutually compliant, enabling an energy storage process for the impact action, making the prompt sound louder, and the energy storage process can be manually or automatically controlled. On this basis, the present invention strengthens the sounding effect of the first prompt sound through structures such as an impact stroke correction component, a reverberation chamber, and a sound transmission opening. Further, the present invention also sets a second group of sound trigger devices as a supplement. The present invention retains the aesthetics of the built-in disassembly and assembly structure and the protection of structural components, and has the characteristic of being easy to observe the installation state. Description of the Drawings

[0024] Figure 1 Schematic diagram of the external view of the installation box in Embodiment 1; Figure 2 Schematic diagram of the internal view of the installation box in Embodiment 2; Figure 3 Schematic diagram of the first fitting; Figure 4 Schematic diagram of the second fitting and the impact member; Figure 5 Schematic diagram of the working process of the energy storage member; Figure 6 Schematic diagram of the trigger device for the second prompt sound; Figure 7 Schematic diagram of the detachable seat in Embodiment 2.

[0025] Legend Explanation: 1 First fitting, 110 Insertion part, 111 Energy storage slope, 120 Impact groove, 121 First sounding surface, 130 Connection part; 2 Second fitting, 210 Installation box, 211 Opening, 220 Reverberation chamber, 230 Auxiliary installation part, 240 Auxiliary fixing part; 3 Impact member, 310 First impact surface, 320 Tail end; 4 Energy storage member, 410 Positioning end, 420 Movable end; 5 Calibration assembly, 510 Movable cavity, 511 Second sound - emitting surface, 520 Auxiliary limiting member, 521 Limiting through - hole; 6 Control member, 610 Second impact surface; 7 Backrest frame, 8 Seat frame. Specific embodiments

[0026] The present invention will be further described below in conjunction with the accompanying drawings of the specification and specific embodiments. Those of ordinary skill in the art will be able to implement the present invention based on these descriptions. In addition, the embodiments of the present invention involved in the following description are usually only a part of the embodiments of the present invention, rather than all of the embodiments. Therefore, all other embodiments obtained by those of ordinary skill in the art without creative efforts based on the embodiments of the present invention shall fall within the scope of protection of the present invention.

[0027] Embodiment 1 This embodiment is an internal disassembly and assembly structure.

[0028] In the finished seat, the internal disassembly and assembly structure is blocked by the filling layer of the seat, and users cannot visually observe whether the installation is in place. It is easy to cause damage to the structure due to excessive force, or the structure becomes loose due to improper installation, resulting in accidents during use. Therefore, the inventor hopes to propose a disassembly and assembly structure that can convey the installation state of the structure to users in a non - visual way.

[0029] This internal disassembly and assembly structure first includes a component for connecting the backrest and the seat.

[0030] Please refer to Figure 1 、 Figure 2 , this internal disassembly and assembly structure includes a first fitting 1 and a second fitting 2. The first fitting 1 includes a plug - in part 110, and the second fitting 2 includes an installation box 210. After the plug - in part 110 enters the interior of the installation box 210, the installation box 210 restricts the plug - in part 110 from shaking in the vertical direction shown in the figure, and the plug - in part 110 can only move back and forth along the direction of entering or exiting the installation box 210, forming an installation track.

[0031] This internal disassembly and assembly structure secondly includes a trigger device for the first prompt sound.

[0032] Please refer to Figure 2 , Figure 5, the triggering device of the first prompt sound includes a first sound - emitting surface 121 located on the plug - in part 110, a first impact surface 310 located on the impact member 3, and an energy - storage member 4 connected to the impact member 3. During the installation process, the first impact surface 310 touches the first sound - emitting surface 121 to emit the first prompt sound, indicating that the installation is in place; the energy - storage member 4 provides energy for the touch of the first impact surface 310.

[0033] Please refer to Figure 2 , Figure 5 , the energy - storage member 4 has a positioning end 410 fixed outside the installation box 210 and a movable end 420 with variable position. The energy - storage member 4 realizes the accumulation and release of energy through the telescopic change of its own length, that is, the change in the distance between the positioning end 410 and the movable end 420. During the energy - accumulation process, the distance and area that the movable end 420 travels through is the energy - storage stroke. Correspondingly, the distance and area that the impact member 3 travels through during the impact process is the impact stroke. The energy - storage member 4 is connected to the impact member 3, and the energy - storage member 4 compresses its own shape through the energy - storage stroke to reserve space for the impact stroke of the energy - storage member 4.

[0034] The impact stroke intersects with the installation trajectory of the plug - in part 110, and the impact member 3 may block the movement of the plug - in part 110. This built - in disassembly and assembly structure utilizes this blocking relationship to realize the locking of the first assembly 1 and the second assembly 2 and the sound trigger accompanying the locking.

[0035] Please refer to Figure 3 , an impact groove 120 for accommodating the impact stroke is opened on the plug - in part 110, and the first sound - emitting surface 121 serves as the bottom of the impact groove 120 and is also the end point of the impact stroke. Only when the position of the impact groove 120 matches the impact stroke of the impact member 3, can the first impact surface 310 reach the end point of the impact stroke and touch the first sound - emitting surface 121 to emit the first prompt sound. During the installation process, the user can manually control the energy - storage member 4 to store energy, or an auxiliary structure can be set for automatic control.

[0036] During the impact - sound - emitting process, the energy stored in the energy - storage member 4 determines the volume of the first prompt sound. To ensure that the energy of the energy - storage member 4 is not dispersed by other structures, a calibration component 5 with a protection function for both the impact stroke and the energy - storage stroke is set.

[0037] Please refer to Figure 5 , Figure 6 , the calibration component 5 includes an activity cavity 510 for accommodating the energy - storage member 4 and the impact member 3, and the activity cavity 510 is coaxial with the impact stroke and the energy - storage stroke. On the one hand, the calibration component 5 separates the energy - storage member 4 and the impact member 3 from the filler layer in the seat, preventing the filler of the seat, etc. from blocking their movement paths. On the other hand, the calibration component 5 corrects the movement trajectory of the impact member 3 during the energy - storage process and the energy - release process, preventing the impact direction of the impact member 3 from skewing.

[0038] To achieve the impact action, it is necessary to provide fixed reference points for the energy storage stroke and the impact stroke to ensure that the starting positions of the energy storage stroke and the impact stroke have definite positions relative to the fixed reference points.

[0039] Please refer to Figure 1 、 Figure 2 , the correction component 5 is externally provided with threads, which are used to fix the position of the correction component 5 and the mounting box 210. Specifically, the second fitting 2 further includes an auxiliary mounting member 230 and an auxiliary fixing member 240. The auxiliary mounting member 230 is a box-shaped structure with an opening, surrounding the outside of the mounting box 210. The mounting box 210 is connected to the auxiliary mounting member 230, and they have a relatively fixed positional relationship. The outer surface of the auxiliary mounting member 230 is connected with an auxiliary fixing member 240; the auxiliary fixing member 240 is a nut, which can cooperate with the threads on the outer surface of the correction component 5 to fix the correction component 5 on the auxiliary mounting member 230.

[0040] On the basis of the relative fixation between the correction component 5 and the mounting box 210, the correction component 5 provides a fixed position reference point for the energy storage stroke and the impact stroke.

[0041] Please refer to Figure 5 、 Figure 6 , both ends of the cavity of the movable cavity 510 inside the correction component 5 have openings. One end opening allows the first impact surface 310 to pass through, and at the other end opening, there is an auxiliary limiting member 520, and a limiting through hole 521 is provided on the auxiliary limiting member 520. The impact member 3 includes two sections with different diameters. The section with a larger diameter cannot pass through the limiting through hole 521, while the section with a smaller diameter can move back and forth in the limiting through hole 521. Therefore, the impact member 3 as a whole can move relative to the limiting through hole 520 but cannot escape from the movable cavity 510. The positioning end 410 of the energy storage member 4 is fixed on the surface of the auxiliary limiting member 520 facing the inside of the movable cavity 510. Therefore, the energy storage stroke of the energy storage member 4 takes the position of the auxiliary limiting member 520 as the fixed reference point; and since the movable end 420 of the energy storage member 4 is connected to the section with a larger diameter of the impact member 3, the impact stroke of the impact member 3 also takes the position of the auxiliary limiting member 520 as the fixed reference point.

[0042] To avoid the impact sound between the impact member 3 and other parts of the first fitting 1 misleading the user, this solution restricts the impact stroke and indirectly restricts the energy storage effect.

[0043] Please refer to Figure 2 and Figure 6, when the impact member 3 is at the starting position of the impact stroke, the first impact surface 310 is located at the position of the box body of the mounting box 210. Considering the tolerances in the production and assembly of physical accessories, in different embodiments, the actual position of the first impact surface 310 may be at an adjacent position to the box body 210. If the position of the impact groove 120 does not match the position of the impact stroke, there may be two situations: the impact member 3 is blocked by the insertion portion 110, and the impact stroke of the impact member 3 is limited to the narrow gap between the box body of the mounting box 210 and the insertion portion 110, and the energy storage member 4 cannot obtain sufficient energy storage stroke; or there is no interception structure on the impact stroke, and although the energy storage member 4 releases energy, the impact member 3 does not collide. Only when the impact stroke matches the impact groove 120, can the two conditions of sufficient impact stroke and the existence of an impact structure be met, and the first prompt sound can be generated.

[0044] As described above, the user can manually control the energy storage of the energy storage member 4, or an auxiliary structure can be set up for automatic control. In this embodiment, an auxiliary structure for automatic energy storage is proposed.

[0045] Please refer to Figure 3 , Figure 4 , at the front end of the insertion portion 110, there is an energy storage slope 111, and the energy storage slope 111 has a shape that compresses the energy storage member 4 along the installation trajectory. Before installation, the energy storage member 4 spontaneously is in an uncharged or lowest charged state and reserves space for the energy storage stroke; the space reserved for the energy storage stroke occupies the position of the impact stroke, and at this time, the impact member 3 is pushed by the energy storage member 4 to the end point of the impact stroke. During the installation process, the energy storage slope 111 at the front end of the insertion portion 110 moves along the installation trajectory and contacts the impact member 3 before the impact groove 120. The energy storage slope 111 gradually occupies the impact stroke through its gradually changing shape, and pushes the impact member 3 back from the end point of the impact stroke to the starting point; when the impact member 3 is pushed back, it squeezes the energy storage member 4, causing it to compress its own shape to make space for the impact stroke, and at the same time, energy is stored. The insertion portion 110 continues to move along the installation trajectory. When the impact groove 120 coincides with the impact stroke, the energy storage member 4 releases energy, pushing the impact member 3 to the end point of the impact stroke, and the first impact surface 310 collides with the first sound - emitting surface 121 to emit the first prompt sound. This process can proceed spontaneously and continuously along with the installation process of the first assembled part 1 without manual energy storage.

[0046] Considering that the filling layer in the finished seat may weaken the first prompt sound during the installation process, this embodiment proposes two compensation structures for the overall sound prompt effect.

[0047] On the one hand, in this embodiment, a strengthening structure for the first prompt sound is provided on the second assembled part 2.

[0048] Please refer to Figure 4, the installation box 210 has a reverberation cavity 220 reserved in the side area of the insertion part 110, and the first prompt sound is strengthened through the reverberation cavity 220. The installation box 210 is provided with an opening 211 on one side adjacent to the impact member 3, and the propagation direction of the first impact sound is concentrated on the side of the opening 211, improving the sound amplification effect.

[0049] On the other hand, a second prompt sound and a corresponding triggering device are additionally provided in this embodiment.

[0050] Please refer to Figure 5 , Figure 6 , the impact member 3 itself has a movement trajectory of moving back and forth in the movable cavity 510; if a second impact surface 610 and a second sound - generating surface 511 are respectively arranged on the impact member 3 and the movable cavity 510, and the two collide with each other as the impact member 3 moves, a second set of sound - generating structures can be constructed.

[0051] Furthermore, considering that since the movable cavity 510 has the functions of correcting the impact stroke and the energy - storage stroke, the gap between the inner surface of the movable cavity 510 and the impact member 3 and the energy - storage member 4 is very small, and there is not enough space for arranging the impact surface and the sound - generating surface. Therefore, in this solution, the second impact surface 610 is arranged at the tail end 320 of the impact member 3, and the tail end 320 is exposed outside the movable cavity 510; the direction of the second impact surface 610 faces the movable cavity 510. The second sound - generating surface 511 is arranged on the outer surface of the movable cavity 510 and is arranged opposite to the second impact surface 610. The second impact surface 610 touches the second sound - generating surface 511 as the impact stroke progresses, generating a clear second prompt sound. In different embodiments, the second impact surface 610 has different physical - shape carriers, and the shape of the tail end 320 of the impact member 3 includes but is not limited to a block shape, a rod shape perpendicular to the impact block, or a thin - sheet shape, etc.

[0052] In the embodiment where the user needs to manually control the energy - storage member 4 to store energy, the user needs to operate the impact member 3 to drive the energy - storage member 4 to move, and the operation position is at the tail end 320 of the impact member 3. The carrier shape of the second impact surface 610 is optional, but some shapes such as thin - sheet shapes are not convenient for the user to exert force with the hand to pull it out. Accordingly, this solution further improves the shape of the tail end 320 of the impact member 3 so that it is both suitable for operation and can emit a second prompt sound.

[0053] Please refer to Figure 6, a circular control member 6 is connected to the tail end 320 of the impact member 3. A second impact surface 610 is provided on a half ring body of the ring close to the movable cavity 510, and an arc is provided on the half ring body away from the movable cavity 510. A gap for a finger to pass through is reserved in the center of the two half ring bodies. At this time, the control member 6 undertakes multiple functions: during the disassembly process, the user can pass through the pore, hook the ring body, and easily pull out the impact member 3 from the movable cavity 510 to store energy in the energy storage member 4. During the installation process, the second impact surface 610 on the ring collides with the second sound - generating surface 511 on the outer wall of the movable cavity 510 when the energy storage member 4 releases energy, generating a second group of prompt sounds.

[0054] Embodiment 2 This embodiment is a detachable seat, and the seat is configured with the built - in disassembly and assembly structure in Embodiment 1.

[0055] Please refer to Figure 7 , the detachable seat includes a backrest frame 7 and a seat frame 8. The backrest frame 7 is fixedly welded to the first fitting 1, and the seat frame 8 is fixedly welded to the auxiliary fitting 230 of the second fitting 2. When the first fitting 1 and the second fitting 2 are connected, a first prompt sound is emitted to prompt the user that the connection between the backrest and the seat is in place. In other embodiments, the first fitting 1 can be arranged on the seat frame 8, and the second fitting 2 can be correspondingly arranged on the backrest frame 7.

[0056] In some embodiments, the backrest frame 7 and / or the seat frame 8 are provided with a filler layer, and the area outside the second fitting 2 is wrapped by the filler layer of the seat. The filler layer is made of a variety of materials such as sponge and latex. At this time, the first prompt sound may be absorbed by the filler layer during transmission. Therefore, the sound - generating structure of the second prompt sound is arranged outside the filler layer to ensure the sound prompt effect. Specifically, the control member 6 and the second sound - generating surface 511 are exposed outside the filler layer. When the connection between the backrest and the seat is completed, the control member 6 impacts the second sound - generating surface 511 to emit a second prompt sound, giving the user clear sound feedback.

[0057] In some embodiments, the seat does not include a filler layer, but an elastic fabric layer is provided on the side of the backrest frame 7 and / or the seat frame 8 facing the human body to provide support for the human body; in some embodiments, the seat only includes the backrest frame 7 and the seat frame 8, and the frame structure directly provides support for the human body. Since the built - in disassembly and assembly structure proposed in Embodiment 1 has a non - visual prompt method, in these embodiments, at least part of the built - in disassembly and assembly structure is located in the backrest frame 7 and / or the seat frame 8 and is blocked by the frame, which can also assist users with visual impairments, inconvenient operation angles, or other special situations in installing the seat.

Claims

1. An internal disassembly and assembly structure, comprising a first fitting (1) and a second fitting (2), characterized in that: The first fitting (1) includes a plugging portion (110), the second fitting (2) includes a mounting box (210), and the plugging portion (110) has a mounting track for moving in the mounting box (210); The internal disassembly and assembly structure further includes: A triggering device for the first prompt sound, the triggering device includes a first sounding surface (121), a first impact surface (310) and an energy storage member (4); during the installation process, the first impact surface (310) impacts the first sounding surface (121) to emit the first prompt sound, indicating that the installation is in place; The first impact surface (310) is located on the impact member (3); the impact member (3) has a movement track for reciprocating movement within the impact stroke range, and at least part of the impact stroke is located on the movement track of the plugging portion (110); The first sounding surface (121) is located on the plugging portion (110); the plugging portion (110) is provided with an impact groove (120) for accommodating the impact stroke, and the first sounding surface (121) constitutes the bottom of the impact groove (120); The energy storage member (4) is connected to the impact member (3), and the energy storage member (4) compresses its own shape through an energy storage stroke to reserve space for the impact stroke.

2. The built-in disassembly and assembly structure according to claim 1, characterized in that, The front end of the plugging portion (110) is provided with an energy storage slope (111), and the energy storage slope (111) has a shape that compresses the energy storage member along with the installation track.

3. The built-in disassembly and assembly structure according to claim 1, wherein It further includes a calibration component (5); the calibration component (5) includes an activity cavity (510) for accommodating the energy storage member (4) and the impact member (3), and the activity cavity (510) has a cavity shape that conforms to the impact stroke and the energy storage stroke.

4. The built-in disassembly and assembly structure according to claim 3, characterized in that, The impact member (3) is provided with a second impact surface (610) facing the activity cavity (510); the surface of the activity cavity (510) is provided with a second sounding surface (511) facing the second impact surface (610); during the installation process, the second impact surface (610) impacts the second sounding surface (511) to emit the second prompt sound, indicating that the installation is in place.

5. The built-in disassembly and assembly structure according to claim 4, characterized in that, The impact member (3) is connected with a control member (6); the second impact surface (610) is arranged on the control member (6).

6. The built-in disassembly and assembly structure according to claim 1, characterized in that A reverberation cavity (220) is reserved between the mounting box (210) and the plugging portion (110).

7. The built-in disassembly and assembly structure according to claim 1, characterized in that The starting position of the impact stroke is located at the position of the box body of the mounting box (210).

8. The built-in disassembly and assembly structure according to claim 1, characterized in that The mounting box (210) includes an opening (211) arranged adjacent to the impact member (3).

9. A detachable seat, comprising a backrest frame (7) and a seat frame (8), characterized in that, The backrest frame (7) and the seat frame (8) are connected through the internal disassembly and assembly structure according to any one of claims 1 to 8.

10. The detachable seat according to claim 9, wherein, It further includes a filler layer; the backrest frame (7) and the seat frame (8) are connected through the internal disassembly and assembly structure according to claim 5, and the control member (6) and the second sounding surface (511) are exposed outside the filler layer.

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