Locking indication mechanism and table-side dining chair with same

Abstract

The utility model relates to the technical field of household products for infants, and discloses a locking indication mechanism and a table-side dining chair with the locking indication mechanism. The locking indication mechanism comprises a body; one end of the lower supporting piece is rotationally connected with the body, a jacking assembly is installed at the other end of the lower supporting piece, the jacking assembly and the body are suitable for being clamped and fixed to the two faces, opposite to the to-be-installed piece, of the body respectively, an indicating piece is slidably installed in the lower supporting piece, and the indicating piece is connected with the jacking assembly through a connecting piece; and one end of the jacking bias pressure piece is fixedly connected with the lower supporting piece, the other end of the jacking bias pressure piece is connected with the jacking assembly in a matched mode, and the jacking bias pressure piece is suitable for applying bias pressure to the jacking assembly to move away from the end of the lower supporting piece. Whether the jacking assembly and the body are clamped with the to-be-installed piece in a matched mode or not is indicated through the indicating piece, the infant table-side dining chair is installed on the infant table-side dining chair, it can be avoided that an infant is placed on the table-side dining chair in an unclamped state, and the accident that the infant falls off from a table body along with the table-side dining chair is avoided.

Description

Technical Field

[0001] This utility model relates to the field of infant and toddler home products technology, specifically to a locking indicator mechanism and a tableside dining chair having the same. Background Technology

[0002] A baby high chair is a seat used by babies when eating at a dining table. To prevent the height mismatch between the table and the chair from hindering the baby's eating movements, baby high chairs are usually designed to be fixed to and removed from the table. When in use, the chair is secured to the edge of the table, and after eating, the chair is removed from the edge of the table to ensure normal daily use of the table.

[0003] A baby table chair mainly consists of a seat and a main frame for fixing it to the tabletop. The seat is fixed to the upper part of the main frame. In existing technology, table chairs are typically secured to the edge of the table using clamps on both sides of the chair frame. However, because table chairs are wide, the clamps on both sides of the chair frame need to be secured separately, and since the locking mechanism is hidden inside the casing, it is impossible to determine whether the locking mechanism is fully engaged. When the locking mechanism is not fully engaged, the baby is very likely to tip over while eating in the table chair, posing a certain safety risk. Utility Model Content

[0004] In view of this, the present invention provides a locking indicator mechanism and a tableside dining chair having the same, to solve the safety risk problem that exists when the locking structure of the baby tableside dining chair is not properly locked.

[0005] In a first aspect, this utility model provides a locking indicator mechanism, comprising:

[0006] ontology;

[0007] The lower support member has one end rotatably connected to the main body and the other end equipped with a clamping component. The clamping component is adapted to be clamped and fixed to the two opposite sides of the part to be installed, respectively. An indicator is slidably installed inside the lower support member, and the indicator is connected to the clamping component through a connector.

[0008] The clamping biasing member has one end fixedly connected to the lower support member and the other end connected to the clamping assembly. The clamping biasing member is suitable for applying a biasing force to the clamping assembly away from the end of the lower support member.

[0009] When the clamping assembly and the main body are clamped and fixed on the part to be installed, the clamping assembly moves toward the clamping biasing member under the pressure of the part to be installed, so as to drive the indicator to slide along the lower support to the locked position through the connector; when the clamping assembly and the main body are separated from the part to be installed, the clamping assembly moves away from the end of the lower support under the biasing force applied by the clamping biasing member, so as to drive the indicator to slide along the lower support to the unlocked position through the connector.

[0010] The locking indicator mechanism is used to install on a desktop device that can be used with a desktop. The main body is placed on the upper surface of the desktop to be installed. When locked, one end of the lower support rotates around the main body, causing the clamping component at the other end of the lower support to move toward the lower surface of the desktop. This clamps the clamping component and the main body onto the upper and lower surfaces of the desktop, respectively. The relative positions between the clamping component and the main body are fixed by an external structure, thus securing the clamping component and the main body to the desktop. When the clamping component is engaged and clamped to the desktop, the desktop applies pressure to the clamping component, causing it to move toward the end of the lower support and apply pressure to the clamping biasing component. This causes the clamping biasing component to apply a biasing force away from the end of the lower support and toward the desktop. Simultaneously, the clamping component pushes the connecting component, causing the indicator at the other end of the connecting component to slide from the unlocked position to the locked position, indicating that the clamping component has engaged with the main body and clamped the desktop. During unlocking, one end of the lower support rotates around the main body, causing the clamping component at the other end to move away from the table. At this time, the clamping component loses its restraint from the table and, under the biasing force of the clamping biasing component, moves away from the end of the lower support. Simultaneously, the connecting component drives the indicator to slide from the unlocked position to the locked position, indicating that the clamping component has engaged with the main body and separated the tabletop. Through the cooperation of the main body, clamping component, clamping biasing component, connecting component, and indicator, the indicator shows whether the clamping component and main body are clamped to the table. If not clamped, the clamping biasing component moves the indicator away from the locked position, ensuring the accuracy of the indicator. Users can determine whether the clamping component, main body, and table are clamped by observing the indicator, allowing for timely correction if not clamped. When the locking indicator mechanism is installed on a table-side high chair, it prevents infants from being placed on the high chair in an unclamped state, thus preventing accidents such as infants falling off the table.

[0011] In one optional embodiment, the clamping assembly includes a clamping member and a clamping slider. The clamping slider is slidably engaged with the lower support member, and the clamping member is rotatably connected to the clamping slider. When the clamping assembly and the body are clamped on the upper and lower surfaces of the part to be installed, if the upper and lower surfaces of the part to be installed cannot be parallel to the upper surface of the clamping assembly, the part to be installed can automatically and completely abut against the body under the action of clamping force. At the same time, the clamping member can automatically rotate around the clamping slider, thereby ensuring that the clamping member automatically maintains a tight clamping with the part to be installed. This ensures the stability of the clamping assembly and the body when clamping with the part to be installed, and prevents safety risks caused by unstable clamping due to insufficient contact area between the part to be installed and the clamping assembly.

[0012] In one optional embodiment, the lower support member has an elongated hole, the length of which is aligned with the extension direction of the lower support member. A limiting member is slidably installed within the elongated hole, and the limiting member engages with the clamping slider. By providing the elongated hole, the clamping slider is restricted to its installation within the elongated hole by the limiting member, ensuring that the clamping slider can only slide within the range of the elongated hole. This controls the sliding range of the clamping slider relative to the lower support member, improving the stability of the clamping assembly's contact with the part to be installed.

[0013] In one optional embodiment, the lower support member is a tubular structure, and both the connector and the indicator are installed inside the cavity of the lower support member. A display opening is provided on the lower support member at a position corresponding to the locking position. By embedding the indicator inside the cavity of the lower support member and displaying it through the display opening, the visibility of the indicator is improved, and the clarity of the indicator in indicating the locking state is enhanced.

[0014] In one optional embodiment, the lower support member is a curved structure, such that both ends of the lower support member face the body when the clamping assembly and the body are clamped and fixed on the part to be installed. The connecting member is a flexible support member, which is adapted to bend along the extension direction of the lower support member and to drive the indicator to slide when the clamping assembly applies a thrust to the flexible support member. This allows the connecting member to bend flexibly along the direction of the lower support member and to move on the curved lower support member under the thrust of the clamping assembly, thereby causing the indicator to slide back and forth between the locked and unlocked positions.

[0015] In one alternative implementation, the flexible support is a plastic strip, a rubber strip, or an elastic metal wire.

[0016] In one optional embodiment, a mounting box is installed on the main body, and one end of the lower support member rotatably connected to the main body is installed inside the mounting box. The bottom of the mounting box is open to allow the lower support member to extend out from the mounting box. An indicator hole is provided at the mounting box corresponding to the locking position. When the indicator member slides to the locking position, the indicator member is aligned with the indicator hole. By providing a mounting box and installing the end of the lower support member rotatably connected to the main body inside the mounting box, the overall aesthetics of the locking indicator mechanism are improved.

[0017] In one optional embodiment, the clamping biasing component is an elastic reset component or an active driving component. The elastic reset component can be a spring, torsion spring, or other elastic reset component, and the active driving component can be a drive motor, drive cylinder, drive electric cylinder, or other mechanism.

[0018] In one alternative implementation, the indicator is a specified color.

[0019] Secondly, this utility model also provides a tableside dining chair with the locking indicator mechanism described in this utility model. Since the tableside dining chair includes a locking indicator mechanism and has the same effect as the locking indicator mechanism, it will not be described again here. Attached Figure Description

[0020] To more clearly illustrate the specific embodiments of this utility model or the technical solutions in the prior art, the drawings used in the description of the specific embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this utility model. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0021] Figure 1 This is a schematic diagram of the locking indicator mechanism provided in an embodiment of the present invention. Figure 1 To better display the structure beneath the main body, the table-side device's folding and locking mechanism is displayed upside down.

[0022] Figure 2 A side view of a locking indicator mechanism provided for an embodiment of the present invention.

[0023] Figure 3 A schematic diagram of the internal structure of the locking indicator mechanism provided in an embodiment of this utility model.

[0024] Figure 4 This is a schematic diagram of the structure in which the lower support member and the tightening assembly are installed in accordance with an embodiment of the present invention.

[0025] Figure 5 This is a structural schematic diagram of the lower support member provided in an embodiment of the present invention.

[0026] Figure 6 A schematic diagram of the clamping assembly provided in an embodiment of this utility model.

[0027] Figure 7 This is a schematic diagram of the structure of the clamping member provided in an embodiment of the present invention.

[0028] Figure 8 A schematic diagram of the top-tightening slider provided in an embodiment of this utility model.

[0029] Figure 9 This is a schematic diagram of the structure in which the lower support member and the main body are installed together, according to an embodiment of the present invention.

[0030] Figure 10 This is a schematic diagram of the locking component provided in an embodiment of the present invention.

[0031] Explanation of reference numerals in the attached drawings: 1. Body; 101. Dinner plate; 102. Enclosure tube assembly; 1021. Connecting tube; 1022. Backing tube; 2. Lower support component; 201. Elongated hole; 202. Display opening; 3. Tightening assembly; 301. Tightening component; 302. Tightening slider; 303. Limiting component; 4. Tightening biasing component; 5. Flexible support component; 6. Indicator component; 7. Connecting crank component; 8. Locking assembly; 801. Winding shaft; 802. Mounting housing; 803. Turntable component; 804. Operating knob; 805. Auxiliary positioning knob; 8051. Rotating part; 8052. Extended part; 9. Flexible pulling component; 10. Mounting box; 1001. First limiting part; 1002. Second limiting part; 1003. Indicator hole. Detailed Implementation

[0032] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

[0033] The following is combined with Figures 1 to 10 The following describes embodiments of the present invention.

[0034] According to an embodiment of this utility model, a locking indicator mechanism is provided, which can be applied to devices installed on the edge of a table, such as a tableside chair. In this embodiment, a baby tableside chair is used as an example, and the baby tableside chair is installed at the edge of the tabletop. The locking indicator mechanism can be installed on only one side of the baby tableside chair, or on both sides. The locking indicator mechanism includes: a body 1, a lower support member 2, and a clamping and biasing member 4.

[0035] One end of the lower support member 2 is rotatably connected to the main body 1, and the other end is slidably mounted with a clamping component 3. The clamping component 3 is adapted to be clamped and fixed to the opposite sides of the table body, respectively, with the main body 1. An indicator 6 is slidably mounted on the lower support member 2, and the indicator 6 is connected to the clamping component 3 via a connector. A clamping biasing member 4 is fixedly connected to the lower support member 2 at one end and connected to the clamping component 3 at the other end. The clamping biasing member 4 is adapted to apply a biasing force away from the movement of the clamping component 3. When the clamping component 3 and the main body 1 are clamped and fixed to the table body, the clamping component 3 moves toward the clamping biasing member 4 under the pressure of the table body, so as to drive the indicator 6 to slide along the lower support member 2 to the locked position via the connector. When the clamping component 3 and the main body 1 are separated from the table body, the clamping component 3 moves away from the end of the lower support member 2 under the biasing force applied by the clamping biasing member 4, so as to drive the indicator 6 to slide along the lower support member 2 to the unlocked position via the connector.

[0036] The locking indicator mechanism is used to install on a desktop device that can be used with a desktop. The main body 1 is placed on the upper surface of the desktop. When locked, one end of the lower support 2 rotates around the main body 1, causing the clamping component 3 at the other end of the lower support 2 to move toward the lower surface of the desktop. This clamps the clamping component 3 and the main body 1 onto the upper and lower surfaces of the desktop, respectively. The relative positions between the clamping component 3 and the main body 1 are fixed by an external structure, thus fixing the clamping component 3 and the main body 1 onto the desktop. When the clamping component 3 is engaged and clamped to the desktop, the desktop applies pressure to the clamping component 3, causing the clamping component 3 to move toward the end of the lower support 2 and apply pressure to the clamping biasing component 4. This causes the clamping biasing component 4 to apply a biasing force to the clamping component 3, moving away from the end of the lower support 2 toward the desktop. At the same time, the clamping component 3 pushes the connecting component, causing the indicator 6 at the other end of the connecting component to slide from the unlocked position to the locked position, thereby indicating that the clamping component 3 has engaged with the main body 1 to clamp the desktop. During unlocking, one end of the lower support 2 rotates around the main body 1, causing the clamping component 3 at the other end to move away from the table. At this time, the clamping component 3 loses the limitation of the table and moves away from the end of the lower support 2 under the biasing force of the clamping biasing component 4. Simultaneously, the indicator 6 is driven to slide from the unlocked position to the locked position through the connecting component, thus indicating that the clamping component 3 has cooperated with the main body 1 to separate the table. Through the cooperation of the main body 1, clamping component 3, clamping biasing component 4, connecting component and indicator 6, the indicator 6 indicates whether the clamping component 3 and the main body 1 are clamped with the table. If not clamped, the clamping biasing component 4 can move the indicator 6 from the locked position, thus ensuring the accuracy of the indicator 6. The user can determine whether the clamping component 3, the main body 1 and the table are clamped by observing the indicator 6, ensuring that the user can correct it in time if it is not clamped. When the locking indicator mechanism is installed on the dining chair at the table, it can prevent the baby from being placed on the dining chair in the unclamped state, and prevent the baby from falling off the table with the dining chair.

[0037] The clamping biasing component 4 can be an elastic reset component or an active driving component. The elastic reset component can be a spring, torsion spring, or other elastic reset component, while the active driving component can be a drive motor, drive cylinder, drive electric cylinder, or other mechanism. In this embodiment, the clamping biasing component 4 is selected as a spring.

[0038] It should be noted that the above description only describes the locking indicator mechanism and does not limit the locking mechanism. The locking mechanism can be any device that can lock the lower support 2 and the main body 1 by moving in conjunction with the locking indicator mechanism and clamping them with the table body. Taking an infant table chair as an example, the main body 1 includes a tray 101 and a barrier tube assembly 102. The barrier tube assembly 102 includes a pair of connecting tubes 1021 and a U-shaped backrest tube 1022. The pair of connecting tubes 1021 are fixedly installed on the tray 101, and the two ends of the backrest tube are slidably installed in the connecting tubes 1021.

[0039] In one embodiment, the clamping assembly 3 includes a clamping member 301 and a clamping slider 302. The clamping slider 302 is slidably engaged with the lower support member 2, and the clamping member 301 is rotatably connected to the clamping slider 302. When the clamping assembly 3 and the body 1 are clamped on the upper and lower surfaces of the table, if the upper and lower surfaces of the table cannot be parallel to the upper surface of the clamping assembly 3, the table can automatically and completely abut against the body 1 under the action of the clamping force. At the same time, the clamping member 301 can automatically rotate around the clamping slider 302, thereby ensuring that the clamping member 301 automatically maintains a tight clamping with the table, ensuring the stability of the clamping assembly 3 and the body 1 when clamped with the table, and preventing the safety risks caused by the unstable clamping due to the small contact area between the table and the clamping assembly 3.

[0040] Specifically, the lower support member 2 is provided with an elongated hole 201, the length of which is along the extension direction of the lower support member 2. A limiting member 303 is slidably installed within the elongated hole 201, and the limiting member 303 is connected to the clamping slider 302. By providing the elongated hole 201, the clamping slider 302 is restricted to be installed within the elongated hole 201 by the limiting member 303, so that the clamping slider 302 can only slide within the range of the elongated hole 201, thereby controlling the sliding range of the clamping slider 302 relative to the lower support member 2 and improving the stability of the clamping assembly 3 in contact with the table body.

[0041] In one embodiment, the lower support 2 is a tubular structure, and both the connector and the indicator 6 are installed inside the cavity of the lower support 2. A display opening 202 is provided on the lower support 2 at the position corresponding to the locking position. By embedding the indicator 6 inside the cavity of the lower support 2 and displaying the indicator through the display opening 202, the visibility of the indicator 6 is improved, and the clarity of the indicator 6 in indicating the locking state is enhanced.

[0042] In one embodiment, the lower support 2 is a curved structure, such that both ends of the lower support 2 face the body 1 when the clamping assembly 3 and the body 1 are clamped and fixed on the table. The connecting member is a flexible support 5, which is adapted to bend along the extension direction of the lower support 2 and to drive the indicator 6 to slide when the clamping assembly 3 applies a pushing force to the flexible support 5. This allows the connecting member to bend flexibly along the direction of the lower support 2 and to move on the curved lower support 2 under the pushing force of the clamping assembly 3, thereby driving the indicator 6 to slide back and forth between the locked and unlocked positions. Specifically, the flexible support 5 can be a plastic strip, a rubber strip, or an elastic metal wire. In this embodiment, a plastic strip is selected as the flexible support 5. The lower support 2 is selected as a generally U-shaped curved tube. In some other embodiments, the lower support 2 can also be a rod structure with grooves.

[0043] In one embodiment, a mounting box 10 is mounted on the main body 1. One end of the lower support member 2, which is rotatably connected to the main body 1, is installed inside the mounting box 10. The bottom of the mounting box 10 is open, allowing the lower support member 2 to extend out from the mounting box 10. An indicator hole 1003 is provided at the mounting box 10 corresponding to the locking position. When the indicator member 6 slides to the locking position, the indicator member 6 is aligned with the indicator hole. By using the mounting box 10, the overall aesthetics of the locking indicator mechanism are enhanced by installing the end of the lower support member 2, which is rotatably connected to the main body 1, inside the mounting box 10. The indicator member 6 is a clearly visible designated color such as red, green, yellow, purple, white, or black. In this embodiment, the indicator member 6 is green. When the indicator hole 1003 of the mounting box 10 is completely green, it can be determined that the locking is complete.

[0044] To ensure the completeness of the solution, the table edge device retraction and locking mechanism used in this embodiment will be further described below with reference to the accompanying drawings. The table edge device retraction and locking mechanism includes a main body 1, a lower support member 2, and a locking assembly 8 for controlling the locking of the overall locking structure. To improve the stability of the movement of the lower support member 2, a connecting crank member 7 is also installed between the lower support member 2 and the connecting crank member. One end of the connecting crank member 7 is rotatably mounted on the sliding mounting member, and the other end is rotatably mounted on the lower support member 2. The side of the connecting crank member 7 away from the lower support member 2 abuts against the first limiting part 1001, and the side of the lower support member 2 away from the connecting crank member 7 abuts against the second limiting part 1002. Both the first limiting part 1001 and the second limiting part 1002 are fixedly connected to the main body 1. The rotation direction of the lower support member 2 during the sliding process of the sliding mounting member is controlled by installing the connecting crank member 7. The connecting crank member 7 includes a first rod and a second rod fixedly connected. The first rod is rotatably mounted on the sliding mounting member, and the second rod is rotatably mounted on the lower support member 2. The first rod and the second rod are set at an angle. In this embodiment, the first and second rods are at an approximately perpendicular obtuse angle. A mounting box 10 is fixedly mounted on the main body 1. One end of the lower support member 2, rotatably connected to the main body 1, is installed inside the mounting box 10. The bottom of the mounting box 10 is open, allowing the lower support member 2 to extend out from it. Specifically, the first limiting part 1001 is located on the inner sidewall of the mounting box 10 on the side of the connecting curved rod 7 opposite to the lower support member 2, and the second limiting part 1002 is located on the side of the lower support member 2 opposite to the connecting curved rod where the bottom opening of the mounting box 10 is located.

[0045] A set of sliding mounting parts are slidably installed on both sides of the main body 1. The sliding mounting parts are adapted to slide between the retracted position and the unfolded position on the main body 1. A locking biasing member is installed between the sliding mounting parts and the main body 1. The locking biasing member is adapted to apply a biasing force to the sliding mounting parts as they slide from the unfolded position to the retracted position.

[0046] A pair of lower support members 2 are provided, respectively installed on both sides of the main body 1. The lower support members 2 are installed in a one-to-one correspondence with the sliding mounting members. One end of the lower support member 2 is rotatably connected to the sliding mounting member, and the other end is equipped with a clamping component 3. When the sliding mounting member slides between the closed position and the unfolded position, the clamping component 3 is adapted to move away from or towards the main body 1 under the drive of the lower support rod. The clamping component 3 and the main body 1 are adapted to clamp and fix them to the two opposite sides of the table. The enclosure tube assembly 102 includes a pair of connecting tubes 1021 and a U-shaped backing tube 1022. The sliding mounting member is slidably installed on the connecting tube 1021, and the flexible pulling member 9 extends along the inner cavity of the backing tube 1022 and the connecting tube 1021. The sliding mount is provided with a mounting post serving as a mating mounting part. The mounting post penetrates the side wall of the connecting pipe 1021 and extends into the inner cavity of the connecting pipe 1021. The end of the pull rope, which serves as the flexible pull member 9, is provided with a hook, which is hooked and connected to the mounting post. The connecting pipe 1021 is provided with a clearance opening for the sliding movement of the mating mounting part. The clearance opening extends along the length direction of the connecting pipe 1021. Under the cooperation of the mating mounting part and the clearance opening, the sliding range of the sliding mount on the connecting pipe 1021 is limited. By embedding the flexible pull member 9 inside the retaining pipe assembly 102, the stability of the flexible pull member 9 during movement is improved along the extension direction of the retaining pipe assembly 102.

[0047] The locking assembly 8 is mounted on the main body 1. A winding shaft 801 is installed inside the locking assembly 8. A pair of sliding mounting members are each connected to a flexible pull member 9. The end of the flexible pull member 9 away from the sliding mounting member is adapted to be wound around the winding shaft 801. The winding shaft 801 is adapted to rotate to wind or release the flexible pull member 9, thereby causing the sliding mounting member to slide between a closed position and an unfolded position. The locking assembly 8 has a locked state that fixes the winding shaft 801 to restrict its rotation, and an unlocked state that releases the winding shaft 801 to allow it to rotate freely. The locking assembly 8 includes a mounting housing 802, a turntable 803, and an operating knob 804. The mounting housing 802 fixes the turntable 803 to the main body 1. The turntable 803 is installed inside the mounting housing 802. The winding shaft 801 is fixedly connected to the turntable 803. A first engaging portion is provided on the side of the turntable 803 facing away from the winding shaft 801. The operating knob 804 is slidably connected to the turntable 803 along the axial direction. A second engaging portion is provided on the side of the operating knob 804 facing the turntable 803. The operating knob 804 has a engaged state where it moves towards the turntable 803, causing the first engaging portion to engage with the second engaging portion, thus enabling the operating knob 804 to drive the turntable 803 to rotate; and a disengaged state where it moves away from the turntable 803, causing the first engaging portion to separate from the second engaging portion. The locking assembly 8 includes a mounting housing 802, a turntable 803, and an operating knob 804. The mounting housing 802 fixes the turntable 803 to the body 1. The turntable 803 is installed inside the mounting housing 802. The winding shaft 801 is fixedly connected to the turntable 803. A first engaging portion is provided on the side of the turntable 803 facing away from the winding shaft 801. The operating knob 804 is slidably connected to the turntable 803 along the axial direction. A second engaging portion is provided on the side of the operating knob 804 facing the turntable 803. The operating knob 804 has a engaged state where it moves towards the turntable 803, causing the first engaging portion and the second engaging portion to engage and cooperate, allowing the operating knob 804 to drive the turntable 803 to rotate; and a disengaged state where it moves away from the turntable 803, causing the first engaging portion and the second engaging portion to separate. A first abutting portion is provided on the inner wall of the mounting housing 802, and a second abutting portion is provided on the operating knob 804. Along the circumference of the operating knob 804, one side of the first abutting portion has a first abutting plane, and the other side has a first clearance slope. Similarly, along the circumference of the operating knob 804, one side of the second abutting portion has a first abutting plane, and the other side has a second clearance slope. The first abutting plane is adapted to abut and limit the movement with the second abutting plane, and the first clearance slope is adapted to clearance cooperate with the second clearance slope. By cooperating with the first abutment part and the second abutment part, the operating knob 804 can only rotate in one direction when it is close to the turntable 803, and cannot rotate in the opposite direction, thereby ensuring the stability of the turntable 803 and the winding shaft 801 in the locked state of the closing and locking mechanism.The locking assembly 8 also includes an auxiliary positioning knob 805, which includes a rotating part 8051 and an extension part 8052. The rotating part 8051 is mounted on the mounting housing 802, and the extension part 8052 is arranged perpendicularly to the rotating part 8051. The auxiliary positioning knob 805 has a positioning state in which the extension part 8052 abuts against the operating knob 804 in the axial direction to keep the operating knob 804 in a cooperating state, and a releasing state in which the extension part 8052 is completely separated from the operating knob 804.

[0048] According to an embodiment of this utility model, another aspect is provided: a tableside dining chair with the locking indicator mechanism and the tableside device retraction locking mechanism described in this embodiment. When installing the tableside dining chair on the edge of a dining table, by placing the plate 101 on the table and rotating the knob body, the drive gear rotates the winding shaft 801. The winding shaft 801 causes the pull rope, which acts as a flexible pull member 9, to wind up on the winding shaft 801, thereby causing the flexible pull member 9 to pull the sliding tube, which acts as a sliding mounting member, to slide on the connecting tube 1021 of the body 1, overcoming the biasing force of the locking bias member, and sliding from the retracted position to the extended position. Under the abutment of the second limiting part 1002, the end of the lower support member 2 connected to the sliding mounting member rotates, causing the clamping component 3 at the other end to move towards the body 1, thereby clamping and installing it together with the body 1 on both sides of the table, completing the temporary installation on the table. After locking, because the second abutment is provided on the outer peripheral wall of the drive gear inside the operating knob 804, the abutment plane on the second abutment is fixed to the first abutment plane on the first abutment in the inner cavity of the mounting housing 802. This allows the knob body, which is fixed to the drive gear inside the operating knob 804, to rotate only in one direction, preventing the first abutment plane from approaching the second abutment plane during rotation. Simultaneously, under the clamping force of the auxiliary positioning knob 805, the operating knob 804 can maintain the locked state of the turntable 803, thereby restricting the rotation of the turntable 803 and the winding shaft 801, ensuring that all components within the locking indicator mechanism can no longer move, thus maintaining the locked state of the locking indicator mechanism. During the movement of the clamping component 3 toward the body 1, the clamping component 3 abuts against the tabletop. Under the clamping force applied by the tabletop, the clamping component 3 moves away from the tabletop and applies pressure to the clamping biasing member 4. This causes the clamping biasing member 4 to apply a biasing force to the clamping component 3, moving away from the end of the lower support member 2 toward the table body. At the same time, the clamping component 3 pushes the connector, causing the indicator 6 at the other end of the connector to slide from the unlocked position to the locked position. At this time, the indicator hole of the mounting box 10 is completely blocked by the indicator 6, turning green, thus indicating that the clamping component 3 has cooperated with the body 1 to clamp the tabletop. During unlocking, the auxiliary positioning knob 805 is first rotated to release the clamping and fixing of the operation knob 804. Then, by pulling the operation knob 804 outward, the drive gear inside the operation knob 804 is separated from the turntable 803. At this time, the turntable 803 and the winding shaft 801 can rotate freely, and the pull rope 9, which is a flexible pull member, is released from the winding shaft 801. Under the biasing force of the locking biasing member, the sliding mounting member is driven to slide from the unfolded position to the retracted position. Under the action of the first limiting part 1001, the connecting crank member 7 drives one end of the lower support member 2 to rotate while moving with the sliding mounting member, causing the clamping component 3 at the other end of the lower support member 2 to separate from the table.During the unlocking process, one end of the support rotates around the main body 1, causing the clamping component 3 at the other end to move away from the table. At this time, the clamping component 3 loses the limitation of the table and moves away from the end of the lower support 2 under the biasing force of the clamping biasing component 4. At the same time, the indicator 6 is driven to slide from the unlocked position to the locked position through the connecting component, thereby indicating that the clamping component 3 has cooperated with the main body 1 to separate the table. Through the cooperation of the main body 1, the clamping component 3, the clamping biasing component 4, the connecting component and the indicator 6, the color of the indicator 6 shown in the indicator hole indicates whether the clamping component 3 and the main body 1 are clamped with the table. If they are not clamped, the clamping biasing component 4 can move the indicator 6 away from the locked position, thereby ensuring the accuracy of the indication of the indicator 6.

[0049] Although embodiments of the present invention have been described in conjunction with the accompanying drawings, those skilled in the art can make various modifications and variations without departing from the spirit and scope of the present invention, and such modifications and variations all fall within the scope defined by the appended claims.

Claims

1. A locking indicator mechanism, characterized in that, include: Ontology(1); The lower support member (2) has one end rotatably connected to the body (1) and the other end is equipped with a clamping component (3). The clamping component (3) is adapted to be clamped and fixed to the two opposite sides of the part to be installed, respectively. An indicator (6) is slidably installed inside the lower support member (2). The indicator (6) is connected to the clamping component (3) through a connector. The clamping biasing member (4) has one end fixedly connected to the lower support member (2) and the other end connected to the clamping assembly (3). The clamping biasing member (4) is adapted to apply a biasing force to the clamping assembly (3) away from the movement of the part to be installed. When the clamping assembly (3) and the body (1) are clamped and fixed on the part to be installed, the clamping assembly (3) moves toward the clamping biasing member (4) under the pressure of the part to be installed, so as to drive the indicator (6) to slide along the lower support member (2) to the locked position through the connector; when the clamping assembly (3) and the body (1) are separated from the part to be installed, the clamping assembly (3) moves away from the end of the lower support member (2) under the biasing force applied by the clamping biasing member (4), so as to drive the indicator (6) to slide along the lower support member (2) to the unlocked position through the connector.

2. The locking indicator mechanism according to claim 1, characterized in that, The clamping assembly (3) includes a clamping member (301) and a clamping slider (302). The clamping slider (302) is slidably engaged with the lower support member (2), and the clamping member (301) is rotatably connected to the clamping slider (302).

3. The locking indicator mechanism according to claim 2, characterized in that, The lower support member (2) is provided with an elongated hole (201), the length direction of which is along the extension direction of the lower support member (2), and a limiting member (303) is slidably installed in the elongated hole (201), the limiting member (303) being connected to the top-tightening slider (302).

4. The locking indication mechanism according to any one of claims 1 to 3, characterized in that, The lower support member (2) is a tubular structure. The connector and the indicator (6) are both installed inside the cavity of the lower support member (2). A display opening (202) is provided on the lower support member (2) at the position corresponding to the locking position.

5. The locking indication mechanism according to any one of claims 1 to 3, characterized in that, The lower support member (2) is a curved structure. When the clamping assembly (3) and the body (1) are clamped and fixed on the part to be installed, both ends of the lower support member (2) are set towards the body (1). The connecting member is a flexible support member (5). The flexible support member (5) is adapted to bend along the extension direction of the lower support member (2) and is adapted to drive the indicator (6) to slide when the clamping assembly (3) applies a thrust to the flexible support member (5).

6. The locking indicator mechanism according to claim 5, characterized in that, The flexible support (5) is a plastic strip, a rubber strip, or an elastic metal wire.

7. The locking indication mechanism according to any one of claims 1 to 3, characterized in that, An installation box (10) is installed on the main body (1). One end of the lower support member (2) that is rotatably connected to the main body (1) is installed in the installation box (10). An indicator hole (1003) is provided in the installation box (10) corresponding to the locking position. When the indicator (6) slides to the locking position, the indicator (6) is aligned with the indicator hole (1003).

8. The locking indication mechanism according to any one of claims 1 to 3, characterized in that, The clamping biasing component (4) is an elastic reset component or an active driving component.

9. The locking indication mechanism according to any one of claims 1 to 3, characterized in that, The indicator (6) is a specified color.

10. A dining chair for use with a table, characterized in that, It has a locking indication mechanism as described in any one of claims 1 to 9.

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