Electric dining chair with limiting mechanism

Abstract

The utility model relates to the technical field of electric dining chairs, in particular to an electric dining chair with a limiting mechanism, the limiting mechanism is arranged between a second support mechanism and a first support mechanism, a locking position is arranged on one side, close to the first support mechanism, of a seat assembly, and when the seat assembly needs to be static, the seat assembly is swung to the locking position; under the action of the limiting mechanism, swinging of the seat assembly can be limited, the situation that a child loses balance due to accidental shaking of the seat assembly is avoided, an additional stabilizing mechanism is provided for the seat assembly through the limiting mechanism, and the stability of the seat assembly in the static state is improved advantageously; the problems that the stability of an existing electric dining chair is kept through a self-locking function of a motor, however, due to the fact that a motor locking mechanism generally only provides limited static retention force, when a child moves or the seat is subjected to external force, the seat still possibly swings accidentally, the child loses balance and even falls off, and the safety of the child is affected are effectively solved. And the use safety of children cannot be guaranteed.

Description

Technical Field

[0001] This utility model relates to the field of electric dining chair technology, specifically an electric dining chair with a limiting mechanism. Background Technology

[0002] With social development and the continuous improvement of people's living standards, there is an increasing focus on children's quality of life and growth experience. Meals are a crucial part of children's daily activities. Traditional high chairs have relatively limited functions, providing only basic support and stability. However, the emergence of electric high chairs has brought about a new revolution in children's dining. Electric high chairs not only allow children to maintain a more comfortable posture and reduce physical fatigue during meals, but also enhance children's enthusiasm and enjoyment of eating through additional functions such as gentle rocking and music playback.

[0003] Existing electric high chairs typically use a built-in motor to drive the seat to rock, adding fun and soothing children. When the seat needs to be still, it relies on the motor's self-locking function to maintain stability. However, since the motor locking mechanism usually only provides limited static holding force, the seat may still swing unexpectedly when the child moves or the seat is subjected to external force, causing the child to lose balance or even fall, thus failing to guarantee the child's safety.

[0004] This utility model was proposed in response to the shortcomings of the existing technology. Utility Model Content

[0005] Regarding the aforementioned issue that existing electric dining chairs maintain seat stability through the self-locking function of the motor, but since the motor locking mechanism typically only provides limited static holding force, the seat may still swing unexpectedly when the child moves or when the seat is subjected to external forces, causing the child to lose balance or even fall, thus failing to guarantee child safety, the technical solution adopted by this utility model to solve this problem is:

[0006] An electric dining chair with a limiting mechanism includes a chair body, which includes a seat assembly and a linkage bracket assembly. The linkage bracket assembly includes a first bracket mechanism, a second bracket mechanism connected to the seat assembly, and a swing motor located at the connection between the first and second bracket mechanisms. The second bracket mechanism can swing relative to the first bracket mechanism via the swing motor, so that the seat assembly moves closer to or away from the first bracket mechanism. A limiting mechanism is provided between the second bracket mechanism and the first bracket mechanism. The seat assembly has a locking position on the side closer to the first bracket mechanism. When the seat assembly swings to the locking position, the limiting mechanism restricts the swing of the seat assembly.

[0007] Furthermore, the limiting mechanism includes a movable telescopic rod located at the end of the second support mechanism and a limiting groove located on the side of the first support mechanism closer to the second support mechanism. The movable telescopic rod is inserted into the limiting groove to limit the swing of the seat assembly.

[0008] Furthermore, the first support mechanism is provided with axis A, the second support mechanism is provided with axis B, and the locking position is the overlapping surface of axis A and axis B.

[0009] Furthermore, the movable telescopic rod includes a first telescopic rod, a second telescopic rod, a spring member located between the first telescopic rod and the second telescopic rod, and a telescopic rod mounting housing sleeved on the outer side wall of the first telescopic rod and the second telescopic rod. The first telescopic rod and the second telescopic rod are each provided with a sliding protrusion on the side near the spring member. The telescopic rod mounting housing is provided with a first sliding groove that engages with the sliding protrusion. The first sliding groove extends along the length direction of the telescopic rod mounting housing.

[0010] Furthermore, the movable telescopic rod includes a drive housing sleeved on the outer wall of the telescopic rod mounting housing and rotatable relative to the telescopic rod mounting housing. The drive housing is provided with a second inclined groove extending obliquely from the end of the drive housing to the middle position of the drive housing. The sliding protrusion passes through both the first groove and the second inclined groove. When the sliding protrusion moves from near the end of the drive housing to the middle position of the drive housing in the second inclined groove, the spring is in a compressed state, so that both the first telescopic rod and the second telescopic rod can extend into the limiting groove.

[0011] Furthermore, the first support mechanism is provided with a limiting housing on the side near the second support mechanism, and the limiting groove is located inside the limiting housing.

[0012] Furthermore, the limiting mechanism includes a limiting edge located at the outer edge of the limiting housing, and a limiting buckle located at the end of the second support mechanism and snapped together with the limiting edge.

[0013] Furthermore, the limiting mechanism includes a limiting connector, which includes a first mounting part arranged vertically and used to connect to the end of the second support mechanism, and a second mounting part arranged horizontally and used for the movable telescopic rod to pass through. The limiting buckle is located on the side of the second mounting part near the limiting groove.

[0014] Furthermore, the limiting connector and the limiting buckle are integrally formed.

[0015] Furthermore, the drive housing is provided with anti-slip stripes.

[0016] The beneficial effects of this utility model are as follows:

[0017] This invention features a limiting mechanism between the second and first support mechanisms, with a locking position on the seat assembly near the first support mechanism. When the seat assembly needs to be stationary, it can be swung to the locking position. Under the action of the limiting mechanism, the swaying of the seat assembly is restricted, preventing children from losing their balance due to accidental shaking. The limiting mechanism provides an additional stabilization mechanism for the seat assembly, improving its stability in a stationary state. This effectively solves the problem that existing electric dining chairs maintain seat stability through the self-locking function of the motor. However, since the motor locking mechanism usually only provides limited static holding force, the seat may still sway unexpectedly when the child moves or the seat is subjected to external force, causing the child to lose their balance or even fall, thus failing to guarantee the safety of children.

[0018] The present invention will be further described below with reference to the accompanying drawings and specific embodiments. Attached Figure Description

[0019] Figure 1 This is one of the structural schematic diagrams of the dining chair body of this utility model;

[0020] Figure 2 This is the second structural schematic diagram of the dining chair body of this utility model;

[0021] Figure 3 This is the third structural schematic diagram of the dining chair body of this utility model;

[0022] Figure 4 This is a schematic diagram of the structure of the movable telescopic rod of this utility model;

[0023] Figure 5 This is an exploded view of the movable telescopic rod of this utility model;

[0024] Figure 6 This is the fourth structural schematic diagram of the dining chair body of this utility model;

[0025] Figure 7 for Figure 6 An enlarged view of section C marked thereon;

[0026] Figure 8 This is a structural schematic diagram of the limiting connector of this utility model;

[0027] Figure 9 This is a schematic diagram of the structure of the first height adjustment mechanism of this utility model;

[0028] Figure 10 This is an exploded view of the first adjusting card box of this utility model;

[0029] Figure 11This is a schematic diagram of the structure of the first adjusting card box of this utility model;

[0030] Figure 12 This is a schematic diagram and a partially enlarged schematic diagram of the second height adjustment mechanism of this utility model. Detailed Implementation

[0031] The embodiments of this utility model will now be described in detail with reference to the accompanying drawings.

[0032] like Figures 1 to 12 An electric dining chair with a limiting mechanism is shown, including a chair body 1. The chair body 1 includes a seat assembly 2 and a linkage bracket assembly 3. The linkage bracket assembly 3 includes a first bracket mechanism 31, a second bracket mechanism 32 connected to the seat assembly 2, and a swing motor located at the connection between the first bracket mechanism 31 and the second bracket mechanism 32. The second bracket mechanism 32 can swing relative to the first bracket mechanism 31 through the swing motor, so that the seat assembly 2 moves closer to or away from the first bracket mechanism 31. A limiting mechanism is provided between the second bracket mechanism 32 and the first bracket mechanism 31. The seat assembly 2 has a locking position on the side closer to the first bracket mechanism 31. When the seat assembly 2 swings to the locking position, the limiting mechanism restricts the swing of the seat assembly 2.

[0033] This invention features a limiting mechanism between the second and first support mechanisms, with a locking position on the seat assembly near the first support mechanism. When the seat assembly needs to be stationary, it can be swung to the locking position. Under the action of the limiting mechanism, the swaying of the seat assembly is restricted, preventing children from losing their balance due to accidental shaking. The limiting mechanism provides an additional stabilization mechanism for the seat assembly, improving its stability in a stationary state. This effectively solves the problem that existing electric dining chairs maintain seat stability through the self-locking function of the motor. However, since the motor locking mechanism usually only provides limited static holding force, the seat may still sway unexpectedly when the child moves or the seat is subjected to external force, causing the child to lose their balance or even fall, thus failing to guarantee the safety of children.

[0034] Furthermore, relying solely on the self-locking function of the rocking motor to maintain the stability of the seat assembly 2 requires the rocking motor to continuously provide a certain locking force. Long-term use may cause wear and tear on the rocking motor and affect its service life. The limiting mechanism, on the other hand, shares some of the task of maintaining the stability of the seat assembly 2, which helps to reduce the load on the rocking motor in a stationary state, helps to reduce the probability of rocking motor failure, and effectively extends the service life of the dining chair body 1.

[0035] Furthermore, the limiting mechanism is set between the second support mechanism 32 and the first support mechanism 31, which strengthens the connection and stability between the second support mechanism 32 and the first support mechanism 31, so that the structure of the dining chair body 1 is more robust and can withstand greater external impact, which helps to ensure the reliability of the dining chair body 1 during long-term use.

[0036] Optionally, in some embodiments, the limiting mechanism includes a positioning buckle installed on the second support mechanism 32 and a positioning slot installed on the first support mechanism 31. The position of the positioning slot matches the locking position. The positioning buckle has a certain elasticity, and the end of the positioning buckle is set to facilitate engagement with the positioning slot. When the seat assembly 2 swings to the locking position under the drive of the swing motor, the positioning buckle will engage with the positioning slot under the action of elasticity. At this time, the positioning buckle and the positioning slot cooperate with each other to limit the further swing of the second support mechanism 32 relative to the first support mechanism 31, thereby realizing the locking of the seat assembly 2. When it is necessary to unlock, the user only needs to apply a certain external force to make the positioning buckle disengage from the positioning slot.

[0037] Furthermore, as a preferred embodiment of the present invention and not a limitation thereof, the limiting mechanism includes a movable telescopic rod 41 disposed at the end of the second support mechanism 32 and a limiting groove 42 located in the first support mechanism 31. The position of the limiting groove 42 matches the locking position. Under normal conditions, the movable telescopic rod 41 cannot extend into the limiting groove 42. When the user needs to lock the seat assembly 2, the seat assembly 2 is swung to the locking position. The movable telescopic rod 41 can adjust its relative length to shorten its extension into the limiting groove 42. After the movable telescopic rod 41 extends into the limiting groove 42, it returns to its original length so that the movable telescopic rod 41 abuts against the limiting groove 42, thereby limiting the swinging of the seat assembly 2.

[0038] Specifically, the swing motor is mounted on the swing motor mounting housing 5. The swing motor mounting housing 5 includes a first swing motor mounting housing connected to the first support mechanism 31 and a second swing motor mounting housing connected to the second support mechanism 32 and rotatable relative to the first swing motor mounting housing. The swing motor is mounted on the first swing motor mounting housing, and the output shaft of the swing motor extends through the first swing motor mounting housing to the second swing motor mounting housing. The output shaft of the swing motor is connected to the second swing motor mounting housing. When the swing motor is operating normally, the output shaft of the swing motor drives the second swing motor mounting housing to swing. The second swing motor mounting housing is connected to the second support mechanism 32, thereby driving the second support mechanism 32 to swing.

[0039] Furthermore, the first support mechanism 31 is provided with a first height adjustment mechanism, which includes a first actuating block 51, a first upper housing connected to the swing motor mounting housing 5, a first lower housing sleeved on the outer wall of the first upper housing, a first adjustment box 54 disposed in the first upper housing, a first positioning plate 55 disposed in the first lower housing, and a first metal connecting rod 56 for connecting the first actuating block 51 and the first adjustment box 54. The first positioning plate 55 is provided with a plurality of first positioning slots 551 that engage with the first adjustment box 54. The first adjustment box 54 includes a first front housing 541 connected to the first metal connecting rod 56, a first rear housing 542, and a first locking block 543 located between the first front housing 541 and the first rear housing 542. The front housing 541 has a first opening 5411 on the side near the first positioning plate 55, and an inclined protrusion 5412 inclined in the vertical direction on the side near the first rear housing 542. The first rear housing 542 has a first mounting post 5421 extending toward the first positioning plate 55. The first locking block 543 includes a first engaging part 5431 that passes through the first opening 5411 and engages with the first positioning slot 551, a first supporting protrusion 5432 that abuts against the inclined protrusion 5412, and a first mounting hole 5433 that engages with the first mounting post 5421. A first spring member is provided between the first locking block 543 and the first rear housing 542 in the horizontal direction, and a second spring member is provided between the bottom of the first front housing 541 and the first rear housing 542 in the vertical direction.Specifically, when the user needs to adjust the relative height of the first support mechanism 31, they hold the first actuating block 51. The end of the first actuating block 51 connected to the first metal connecting rod 56 moves downward in the vertical direction. The first metal connecting rod 56 drives the first front housing 541 to move downward synchronously. During the downward movement of the first front housing 541, the inclined protrusion 5412 presses down against the first support protrusion 5432, so that the first locking block 543 disengages from the first positioning slot 551. At this time, the first adjusting box 54 can move up and down in the vertical direction of the first positioning plate 55, that is, the first upper housing can move up and down in the vertical direction relative to the first lower housing, thereby adjusting the relative height of the first support mechanism 31. In addition, during this process, the first locking block 543 disengages from the first positioning slot 551 and moves towards the first rear housing 542. The first spring is compressed. At the same time, the first front housing moves downward in the vertical direction. 1. The bottom of the second spring is compressed so that the second spring is also in a compressed state. When the user adjusts the first support mechanism 31 to a suitable height, the first actuating block 51 is released, and the first and second springs recover their elastic deformation. The second spring pushes the first front housing 541 vertically upward. The first front housing 541 drives the first metal connecting rod 56 to move upward synchronously in the vertical direction. One end of the first metal connecting rod 56 connected to the first actuating block 51 moves upward, and the other side of the first actuating block 51 moves downward at an angle. The first actuating block 51 completes its reset. At the same time, during the upward movement of the first front housing 541, the inclined protrusion 5412 moves away from the first support protrusion 5432 and the first spring recovers its elastic deformation. The first spring can press the first locking block 543 to move towards the first positioning slot 551 so that the first locking block 543 and the first positioning slot 551 engage and fix the adjusted height of the first support mechanism 31.

[0040] Furthermore, the second support mechanism 32 is provided with a second height adjustment mechanism, which includes a second adjustment housing connected to the rocking motor mounting housing 5 and arranged vertically, a second mounting housing sleeved on the outer wall of the second adjustment housing and connected to the seat assembly 2, a second positioning slot 611 located on the second adjustment housing, and a second pin 63 located on the second mounting housing and inserted into the second positioning slot 611. The second positioning slots 611 are spaced apart along the height direction of the second adjustment housing. A second actuating block 621 connected to the second pin 63 is provided on one side of the second mounting housing. A third spring member 622 arranged horizontally is provided between the second actuating block 621 and the inner wall of the second mounting housing. Specifically, when the user needs to adjust the relative height of the second support mechanism 32, the second toggle block 621 is moved. The second toggle block 621 presses the third spring 622 and moves away from the second positioning slot 611. The second toggle block 621 and the second pin 63 move synchronously, so that the second pin 63 disengages from the second positioning slot 611. At this time, the second mounting housing can move up and down relative to the second adjusting housing in the vertical direction. When the user adjusts to a suitable height, the second toggle block 621 is released. The third spring 622 recovers its elastic deformation, thereby pushing the second toggle block 621 to move closer to the second positioning slot 611. The second pin 63 moves synchronously with the second toggle block 621, so that the second pin 63 also moves closer to the second positioning slot 611. The second pin 63 and the second positioning slot 611 are engaged, thereby fixing the adjusted height of the second support mechanism 32.

[0041] Furthermore, by setting a first height adjustment mechanism and a second height adjustment mechanism, the user can use the first height adjustment mechanism to adjust the relative height of the second height adjustment mechanism, thereby adjusting the relative height of the seat assembly 2. In addition, the second height adjustment mechanism can also adjust the relative height of the seat assembly 2. The synergistic effect of the first height adjustment mechanism and the second height adjustment mechanism helps to improve the height adjustment range of the seat assembly 2 and helps to meet the user's usage needs in different scenarios.

[0042] like Figures 1 to 12 The limiting mechanism shown includes a movable telescopic rod 41 located at the end of the second support mechanism 32 and a limiting groove 42 located on the side of the first support mechanism 31 near the second support mechanism 32. The movable telescopic rod 41 is inserted into the limiting groove 42 to limit the swing of the seat assembly 2.

[0043] Furthermore, the insertion and engagement of the movable telescopic rod 41 and the limiting groove 42 can directly and effectively limit the swing of the second support mechanism 32 relative to the first support mechanism 31. When the seat assembly 2 swings to the locked position, the movable telescopic rod 41 inserts into the limiting groove 42, which can withstand a large external force without easily loosening, so that the seat assembly 2 remains highly stable in the locked position, greatly reducing the risk of children losing balance and falling due to the shaking of the seat assembly 2, and ensuring the safety of children when using the electric dining chair.

[0044] Furthermore, the limiting groove 42 provides precise positioning for the movable telescopic rod 41, so that when the seat assembly 2 swings to the locking position, the user can accurately lock it, which helps to maintain the consistency and reliability of the electric dining chair, ensuring that the seat assembly 2 remains stable in the expected position after multiple uses or long-term use.

[0045] Furthermore, the insertion and engagement of the movable telescopic rod 41 and the limiting groove 42 is a relatively simple and stable connection method. During normal use, the friction and wear between the parts are small. Compared with some complex mechanical locking mechanisms, it can withstand more uses without being easily damaged, thus extending the service life of the limiting mechanism and reducing the cost of maintenance and replacement of parts.

[0046] like Figures 1 to 12 The first support mechanism 31 shown is provided with axis A, and the second support mechanism 32 is provided with axis B. The locking position is the overlapping surface of axis A and axis B.

[0047] Furthermore, setting the locking position on the coinciding plane of axis A and axis B ensures that the relative positions of the first support mechanism 31 and the second support mechanism 32 are precisely aligned in the locked state, which helps to improve the stability of the dining chair body 1 structure.

[0048] Furthermore, in the locked state, the overlap of axis A and axis B helps to prevent the seat assembly 2 from swinging unexpectedly due to external forces, thus providing a safer environment for children.

[0049] Furthermore, in the locked state, the overlap of axis A and axis B facilitates the formation of a symmetrical structure, which conforms to the principles of aesthetics and engineering design. The symmetrical structure makes the dining chair body 1 more regular and harmonious in appearance.

[0050] like Figures 1 to 12The movable telescopic rod 41 shown includes a first telescopic rod 411, a second telescopic rod 412, a spring member 413 located between the first telescopic rod 411 and the second telescopic rod 412, and a telescopic rod mounting housing 414 sleeved on the outer side wall of the first telescopic rod 411 and the second telescopic rod 412. The first telescopic rod 411 and the second telescopic rod 412 are each provided with a sliding protrusion 415 on the side near the spring member 413. The telescopic rod mounting housing 414 is provided with a first sliding groove 4141 that is inserted and engaged with the sliding protrusion 415. The first sliding groove 4141 extends along the length direction of the telescopic rod mounting housing 414.

[0051] Specifically, both the first telescopic rod 411 and the second telescopic rod 412 have sliding protrusions 415 on the side near the spring member 413. When the sliding protrusions 415 move along the first sliding groove 4141, the first telescopic rod 411 and the second telescopic rod 412 move synchronously with the sliding protrusions 415. One end of the spring member 413 abuts against the first telescopic rod 411, and the other end of the spring member 413 abuts against the second telescopic rod 412. When the user needs to insert the first telescopic rod 411 into the limiting groove 42, the user moves the sliding protrusions 415 on the first telescopic rod 411 so that the sliding protrusions 415 on the first telescopic rod 411 drive the first telescopic rod 411 to move towards the side near the second telescopic rod 412. At this time, the spring member 413 is in a compressed state, and the first telescopic rod 411 can extend into the limiting groove 42. When the user releases the sliding protrusions 415... When the spring 413 returns to its elastic deformation, the first telescopic rod 411 moves towards the side closer to the limiting groove 42 under the action of the elastic force, so that the first telescopic rod 411 and the limiting groove 42 are engaged. Similarly, when the user needs to insert the second telescopic rod 412 into the limiting groove 42, the user moves the sliding protrusion 415 on the second telescopic rod 412, so that the sliding protrusion 415 on the second telescopic rod 412 drives the second telescopic rod 412 towards the side closer to the first telescopic rod 411. At this time, the spring 413 is in a compressed state, and the second telescopic rod 412 can extend into the limiting groove 42. When the user releases the sliding protrusion 415, the spring 413 returns to its elastic deformation, and the second telescopic rod 412 moves towards the side closer to the limiting groove 42 under the action of the elastic force, so that the second telescopic rod 412 and the limiting groove 42 are engaged.

[0052] Furthermore, the spring force of the spring member 413 is used to achieve automatic locking, eliminating the need for additional operation to fix the position of the first telescopic rod 411 and the second telescopic rod 412. When the user releases the sliding protrusion 415, the spring member 413 naturally pushes the first telescopic rod 411 and the second telescopic rod 412 into the limiting groove 42, ensuring the stability of the device during use and avoiding safety hazards caused by accidental loosening.

[0053] Furthermore, the first telescopic rod 411, the second telescopic rod 412, and the spring 413 are integrated into the telescopic rod mounting housing 414, which helps to improve the compactness of the structure, reduces the influence of external factors on the operation of the first telescopic rod 411 and the second telescopic rod 412, and effectively improves the overall reliability of the movable telescopic rod 41.

[0054] like Figures 1 to 12 The movable telescopic rod 41 shown includes a drive housing 416 sleeved on the outer wall of the telescopic rod mounting housing 414 and rotatable relative to the telescopic rod mounting housing 414. The drive housing 416 is provided with a second inclined groove 4161 extending obliquely from the end of the drive housing 416 to the middle of the drive housing 416. The sliding protrusion 415 passes through both the first sliding groove 4141 and the second inclined groove 4161. When the sliding protrusion 415 moves from the end of the drive housing 416 to the middle of the drive housing 416 in the second inclined groove 4161, the spring 413 is in a compressed state, so that both the first telescopic rod 411 and the second telescopic rod 412 can extend into the limiting groove 42.

[0055] Specifically, the drive housing 416 is sleeved on the outer wall of the telescopic rod mounting housing 414 and can rotate relative to the telescopic rod mounting housing 414. Both ends of the drive housing 416 are provided with second inclined grooves 4161. These second inclined grooves 4161 extend obliquely from the ends of the drive housing 416 towards the middle of the drive housing 416 and are shaped like the number "8". The sliding protrusions 415 on the first telescopic rod 411 and the second telescopic rod 412 simultaneously penetrate the first sliding groove 4141 and the second inclined groove 4161. When the user needs to insert the first telescopic rod 411 and the second telescopic rod 412 into the limiting groove 42, the drive housing 416 is rotated. The relative positions of the second inclined grooves 4161 at both ends of the drive housing 416 change, and the sliding protrusions 415 on the first telescopic rod 411 and the second telescopic rod 412 move from the ends of the second inclined grooves 4161 near the drive housing 416 to the ends of the second inclined grooves 4161. When the first telescopic rod 411 is positioned near the middle of the drive housing 416, the second telescopic rod 411 and the second telescopic rod 412 simultaneously move towards the side closer to the spring member 413. The spring member 413 is in a compressed state, and both the first telescopic rod 411 and the second telescopic rod 412 can extend into the limiting groove 42. When the user releases the drive housing 416, the spring member 413 recovers its elastic deformation. Under the action of the elastic force, the first telescopic rod 411 and the second telescopic rod 412 simultaneously move towards the direction closer to the limiting groove 42. The first telescopic rod 411 and the second telescopic rod 412 respectively engage with the limiting groove 42. In addition, the sliding protrusion 415 moves synchronously with the first telescopic rod 411 and the second telescopic rod 412. The sliding protrusions 415 on both sides move from the position near the middle of the second inclined groove 4161 near the middle of the drive housing 416 to the position near the end of the second inclined groove 4161 near the drive housing 416, thereby completing the reset.

[0056] Furthermore, by simply rotating the drive housing 416, the user can simultaneously control the extension and retraction of the first telescopic rod 411 and the second telescopic rod 412. Compared to operating the two telescopic rods separately, this greatly simplifies the adjustment process and significantly improves operational efficiency in practical use, helping to reduce operation time and complexity. Secondly, the operation of rotating the drive housing 416 conforms to ergonomic principles. Compared to directly pushing or pulling the telescopic rods, the rotation action requires less effort, allowing the user to extend and retract the telescopic rods with less force, thus reducing the difficulty of operation.

[0057] Furthermore, the telescopic movements of the first telescopic rod 411 and the second telescopic rod 412 are synchronized through the inclined design of the second inclined groove 4161. When the drive housing 416 rotates, the sliding protrusion 415 moves along the second inclined groove 4161 so that the two telescopic rods move simultaneously toward the spring member 413, ensuring the consistency and reliability of the telescopic movement.

[0058] Furthermore, the drive housing 416 is fitted onto the outside of the telescopic rod mounting housing 414, making the entire structure compact and space-saving, suitable for realizing complex mechanical functions in a limited space; secondly, the cooperation between the second inclined groove 4161 and the sliding protrusion 415 reduces direct friction between mechanical parts, lowers wear and failure risk, and improves the reliability of the system.

[0059] like Figures 1 to 12 The first support mechanism 31 shown is provided with a limiting housing 43 on the side near the second support mechanism 32, and the limiting groove 42 is located inside the limiting housing 43;

[0060] Furthermore, the limiting housing 43 provides a relatively stable space for the limiting groove 42, effectively preventing external debris from entering the limiting groove 42. In actual use, dust and debris may accumulate in the limiting groove 42, affecting the fitting accuracy between the movable telescopic rod 41 and the limiting groove 42. The setting of the limiting housing 43 helps to extend the service life of the limiting groove 42 and the movable telescopic rod 41. Secondly, during the handling, installation or daily use of the dining chair body 1, the limiting groove 42 may be subject to accidental collisions. The limiting housing 43 can play a buffering and protective role, reducing the direct impact of collisions on the limiting groove 42, preventing the limiting groove 42 from deforming or being damaged, and ensuring its structural integrity and functional stability.

[0061] Furthermore, the limiting housing 43 can firmly fix the limiting groove 42 on the first support mechanism 31, preventing the limiting groove 42 from shifting or shaking during use. The stable position of the limiting groove 42 helps to ensure accurate matching between the movable telescopic rod 41 and the limiting groove 42, making the operation of the dining chair body 1 more reliable.

[0062] Furthermore, the limiting housing 43 is designed so that the limiting groove 42 becomes an independent module, which is convenient for installation and disassembly. This modular design simplifies the production process and reduces maintenance costs. When the limiting groove 42 or the limiting housing 43 is worn or damaged, the limiting housing 43 module can be quickly replaced without disassembling and repairing the entire support mechanism.

[0063] like Figures 1 to 12 The limiting mechanism shown includes a limiting edge 431 located on the outer edge of the limiting housing 43, and a limiting buckle 44 located at the end of the second support mechanism 32 and snapped together with the limiting edge 431;

[0064] Furthermore, the snap-fit ​​connection between the limiting edge 431 and the limiting buckle 44 can provide reliable fixation for the first support mechanism 31 and the second support mechanism 32. During normal use of the dining chair body 1, this connection method can effectively resist the action of external forces, prevent relative displacement or shaking between the two support mechanisms, and ensure the structural stability and operational reliability of the dining chair body 1.

[0065] Furthermore, through the snap-fit ​​connection between the limiting edge 431 and the limiting buckle 44, the first support mechanism 31 and the second support mechanism 32 form a tightly integrated whole. When subjected to various loads, the two support mechanisms can work together to jointly bear the external force, thereby improving the load-bearing capacity and deformation resistance of the dining chair body 1.

[0066] like Figures 1 to 12 The limiting mechanism shown includes a limiting connector 45, which includes a first mounting part 451 arranged vertically and used to connect the end of the second support mechanism 32, and a second mounting part 452 arranged horizontally and used for the movable telescopic rod 41 to pass through. The limiting buckle 44 is located on the side of the second mounting part 452 near the limiting groove 42.

[0067] Furthermore, the limiting connector 45 integrates the first mounting part 451 and the second mounting part 452 together, which helps to improve the compactness of the structure and reduce space occupation.

[0068] Furthermore, the second support mechanism 32 is connected to the first mounting part 451 in the vertical direction, ensuring the stability of the connection. At the same time, the second mounting part 452 in the horizontal direction provides stable support for the movable telescopic rod 41, further enhancing the stability of the overall structure.

[0069] Furthermore, the limiting connector 45 is designed to simplify the installation process. With the specific design of the first mounting part 451 and the second mounting part 452, installers can quickly position and install the parts in the vertical and horizontal directions respectively, without the need for complex adjustments and alignment operations, which greatly shortens the installation time and improves the installation efficiency.

[0070] like Figures 1 to 12 The limiting connector 45 and the limiting buckle 44 shown are integrally formed;

[0071] Furthermore, the one-piece molding eliminates the connection interface between the limiting connector 45 and the limiting buckle 44, making them a continuous integral structure. When subjected to external forces, the force can be more evenly distributed across the entire part, avoiding structural damage caused by stress concentration at the connection point, thereby enhancing the overall strength and reliability between the limiting connector 45 and the limiting buckle 44.

[0072] Furthermore, since there is no assembly interface, the integrally formed limiting connector 45 and limiting buckle 44 do not have the problem of failure caused by loose connection or detachment. During long-term use, they can maintain stable performance, which helps to reduce the frequency of equipment maintenance and repair costs, and effectively improve the reliability and stability of the dining chair body 1.

[0073] Furthermore, the integrally formed limiting connector 45 and limiting buckle 44 are assembled as a whole, which helps to reduce the number of parts and assembly steps in the assembly process, making the assembly work simpler and faster, reducing the assembly difficulty and the skill requirements of assembly workers, and effectively reducing the possibility of errors during the assembly process.

[0074] like Figures 1 to 12 The drive housing 416 shown is provided with anti-slip stripes 4162;

[0075] Furthermore, when the user needs to hold the drive housing 416 for operation, the anti-slip stripes 4162 can significantly increase the friction between the user's hand and the drive housing 416, thereby allowing the user's hand to grip the drive housing 416 better, making the operation more stable and easier, reducing the chance of the hand slipping, and improving operating efficiency.

[0076] Furthermore, the anti-slip stripes 4162 can provide anti-slip protection in various grip positions. Whether it is a forward grip, a side grip, or a reverse grip, the anti-slip stripes 4162 can provide sufficient friction to ensure smooth operation.

[0077] Optionally, in some embodiments, the anti-slip stripe 4162 can be designed as several parallel raised stripes, which can be straight or curved, thereby effectively increasing the friction of the contact surface and preventing the hand from slipping.

[0078] Optionally, in some embodiments, the anti-slip stripes 4162 may be designed as rings and arranged around the outer surface of the drive housing 416. The ring stripes can increase the contact area between the hand and the surface of the object, thereby improving the anti-slip effect.

[0079] Optionally, in some embodiments, the anti-slip stripes 4162 can be designed as intersecting grids to form a checkerboard-like texture. The intersecting grid texture consists of intersecting line segments or grooves, which can provide greater friction in multiple directions, thereby increasing the roughness of the contact surface and effectively preventing the hand from sliding in different directions, thus significantly improving the anti-slip performance.

[0080] The implementation method of Example 1 is as follows:

[0081] An electric dining chair with a limiting mechanism includes a chair body 1. The chair body 1 includes a seat assembly 2 and a linkage bracket assembly 3. The linkage bracket assembly 3 includes a first bracket mechanism 31, a second bracket mechanism 32 connected to the seat assembly 2, and a swing motor located at the connection between the first bracket mechanism 31 and the second bracket mechanism 32. The second bracket mechanism 32 can swing relative to the first bracket mechanism 31 through the swing motor, so that the seat assembly 2 moves closer to or away from the first bracket mechanism 31. A limiting mechanism is provided between the second bracket mechanism 32 and the first bracket mechanism 31. The side of the seat assembly 2 closest to the first bracket mechanism 31 has a locking position. When the seat assembly 2 swings to the locking position, the limiting mechanism restricts the swing of the seat assembly 2.

[0082] This invention features a limiting mechanism between the second and first support mechanisms, with a locking position on the seat assembly near the first support mechanism. When the seat assembly needs to be stationary, it can be swung to the locking position. Under the action of the limiting mechanism, the swaying of the seat assembly is restricted, preventing children from losing their balance due to accidental shaking. The limiting mechanism provides an additional stabilization mechanism for the seat assembly, improving its stability in a stationary state. This effectively solves the problem that existing electric dining chairs maintain seat stability through the self-locking function of the motor. However, since the motor locking mechanism usually only provides limited static holding force, the seat may still sway unexpectedly when the child moves or the seat is subjected to external force, causing the child to lose their balance or even fall, thus failing to guarantee the safety of children.

[0083] The implementation method of Example 2 is as follows:

[0084] Based on Embodiment 1, Embodiment 2 also has the following implementation method: The limiting mechanism includes a movable telescopic rod 41 located at the end of the second support mechanism 32 and a limiting groove 42 located on the side of the first support mechanism 31 near the second support mechanism 32. The movable telescopic rod 41 and the limiting groove 42 are inserted and engaged to limit the swing of the seat assembly 2.

[0085] The implementation method of Example 3 is as follows:

[0086] Based on Example 1, Example 3 also has the following implementation method: the first support mechanism 31 is provided with axis A, the second support mechanism 32 is provided with axis B, and the locking position is the coincident surface of axis A and axis B.

[0087] The implementation method of Example 4 is as follows:

[0088] Based on Embodiment 2, Embodiment 4 further includes the following implementation: The movable telescopic rod 41 includes a first telescopic rod 411, a second telescopic rod 412, a spring member 413 located between the first telescopic rod 411 and the second telescopic rod 412, and a telescopic rod mounting housing 414 sleeved on the outer side wall of the first telescopic rod 411 and the second telescopic rod 412. The first telescopic rod 411 and the second telescopic rod 412 are each provided with a sliding protrusion 415 on the side near the spring member 413. The telescopic rod mounting housing 414 is provided with a first sliding groove 4141 that is inserted and cooperates with the sliding protrusion 415. The first sliding groove 4141 extends along the length direction of the telescopic rod mounting housing 414.

[0089] The implementation method of Example 5 is as follows:

[0090] Based on Example 4, Example 5 further includes the following implementation: The movable telescopic rod 41 includes a drive housing 416 sleeved on the outer wall of the telescopic rod mounting housing 414 and rotatable relative to the telescopic rod mounting housing 414. The drive housing 416 is provided with a second inclined groove 4161 extending obliquely from the end of the drive housing 416 to the middle of the drive housing 416. The sliding protrusion 415 passes through both the first sliding groove 4141 and the second inclined groove 4161. When the sliding protrusion 415 moves from the end of the drive housing 416 to the middle of the drive housing 416 in the second inclined groove 4161, the spring member 413 is in a compressed state, so that both the first telescopic rod 411 and the second telescopic rod 412 can extend into the limiting groove 42.

[0091] The implementation method of Example 6 is as follows:

[0092] Based on Example 2, Example 6 also has the following implementation method: The first support mechanism 31 is provided with a limiting shell 43 on the side near the second support mechanism 32, and the limiting groove 42 is located in the limiting shell 43.

[0093] The implementation method of Example 7 is as follows:

[0094] Based on Example 6, Example 7 also has the following implementation method: The limiting mechanism includes a limiting edge 431 located on the outer edge of the limiting housing 43, and a limiting buckle 44 located at the end of the second support mechanism 32 and snapped together with the limiting edge 431.

[0095] The implementation method of Example 8 is as follows:

[0096] Based on Embodiment 7, Embodiment 8 further includes the following implementation: The limiting mechanism includes a limiting connector 45, which includes a first mounting part 451 arranged vertically and used to connect the end of the second support mechanism 32, and a second mounting part 452 arranged horizontally and used for the movable telescopic rod 41 to pass through. The limiting buckle 44 is located on the side of the second mounting part 452 near the limiting groove 42.

[0097] The implementation method of Example 9 is as follows:

[0098] Based on Example 8, Example 9 also has the following implementation method: the limiting connector 45 and the limiting buckle 44 are integrally formed.

[0099] The implementation method of Example 10 is as follows:

[0100] Based on Example 5, Example 10 also has the following implementation method: anti-slip stripes 4162 are provided on the drive housing 416.

[0101] The above examples are merely illustrative of the technical content of this utility model to facilitate reader understanding, but do not imply that the implementation of this utility model is limited to these embodiments. Any technical extensions or re-creations made based on this utility model are protected by this utility model. The scope of protection of this utility model is defined by the claims.

Claims

1. An electric dining chair with a limiting mechanism, comprising a chair body (1), characterized in that: The dining chair body (1) includes a seat assembly (2) and a linkage bracket assembly (3). The linkage bracket assembly (3) includes a first bracket mechanism (31), a second bracket mechanism (32) connected to the seat assembly (2), and a swing motor located at the connection between the first bracket mechanism (31) and the second bracket mechanism (32). The second bracket mechanism (32) can swing relative to the first bracket mechanism (31) through the swing motor, so that the seat assembly (2) moves closer to or away from the first bracket mechanism (31). A limiting mechanism is provided between the second bracket mechanism (32) and the first bracket mechanism (31). The seat assembly (2) has a locking position on the side closer to the first bracket mechanism (31). When the seat assembly (2) swings to the locking position, the limiting mechanism restricts the swing of the seat assembly (2).

2. The electrically powered dining chair with a limiting mechanism according to claim 1, characterized in that: The limiting mechanism includes a movable telescopic rod (41) located at the end of the second support mechanism (32) and a limiting groove (42) located on the side of the first support mechanism (31) near the second support mechanism (32). The movable telescopic rod (41) is inserted into the limiting groove (42) to limit the swing of the seat assembly (2).

3. The electrically powered dining chair with a limiting mechanism according to claim 1, characterized in that: The first support mechanism (31) is provided with axis A, and the second support mechanism (32) is provided with axis B. The locking position is the overlapping surface of axis A and axis B.

4. The electrically powered dining chair with a limiting mechanism according to claim 2, characterized in that: The movable telescopic rod (41) includes a first telescopic rod (411), a second telescopic rod (412), a spring member (413) located between the first telescopic rod (411) and the second telescopic rod (412), and a telescopic rod mounting housing (414) sleeved on the outer side wall of the first telescopic rod (411) and the second telescopic rod (412). The first telescopic rod (411) and the second telescopic rod (412) are each provided with a sliding protrusion (415) on the side near the spring member (413). The telescopic rod mounting housing (414) is provided with a first sliding groove (4141) that is inserted and engaged with the sliding protrusion (415). The first sliding groove (4141) extends along the length direction of the telescopic rod mounting housing (414).

5. The electrically powered dining chair with a limiting mechanism according to claim 4, characterized in that: The movable telescopic rod (41) includes a drive housing (416) sleeved on the outer wall of the telescopic rod mounting housing (414) and rotatable relative to the telescopic rod mounting housing (414). The drive housing (416) is provided with a second inclined groove (4161) extending obliquely from the end of the drive housing (416) towards the middle of the drive housing (416). The sliding protrusion (415) passes through both the first sliding groove (4141) and the second inclined groove (4161). When the sliding protrusion (415) moves from the end near the drive housing (416) towards the middle of the drive housing (416) in the second inclined groove (4161), the spring (413) is in a compressed state, so that both the first telescopic rod (411) and the second telescopic rod (412) can extend into the limiting groove (42).

6. The electrically powered dining chair with a limiting mechanism according to claim 2, characterized in that: The first support mechanism (31) has a limiting housing (43) on the side near the second support mechanism (32), and the limiting groove (42) is located inside the limiting housing (43).

7. The electrically powered dining chair with a limiting mechanism according to claim 6, characterized in that: The limiting mechanism includes a limiting edge (431) located on the outer edge of the limiting housing (43) and a limiting buckle (44) located at the end of the second support mechanism (32) and snapped together with the limiting edge (431).

8. The electrically powered dining chair with a limiting mechanism according to claim 7, characterized in that: The limiting mechanism includes a limiting connector (45), which includes a first mounting part (451) arranged vertically and used to connect the end of the second support mechanism (32), and a second mounting part (452) arranged horizontally and used for the movable telescopic rod (41) to pass through. The limiting buckle (44) is located on the side of the second mounting part (452) near the limiting groove (42).

9. The electrically powered dining chair with a limiting mechanism according to claim 8, characterized in that: The limiting connector (45) and the limiting buckle (44) are integrally formed.

10. The electrically powered dining chair with a limiting mechanism according to claim 5, characterized in that: The drive housing (416) is provided with anti-slip stripes (4162).

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