Electric dining chair with height adjusting mechanism

Abstract

The utility model relates to the technical field of electric dining chairs, in particular to an electric dining chair with height adjusting mechanisms, which is characterized in that a first height adjusting mechanism and a second height adjusting mechanism are arranged, the second height adjusting mechanism is connected with a seat assembly, and the first height adjusting mechanism is respectively connected with the second height adjusting mechanism and a foot stool assembly. A user can use the first height adjusting mechanism to adjust the relative height of the second height adjusting mechanism so as to adjust the relative height of the seat assembly, in addition, the second height adjusting mechanism can also adjust the relative height of the seat assembly, and through the synergistic effect of the first height adjusting mechanism and the second height adjusting mechanism, the relative height of the seat assembly can be adjusted. According to the electric dining chair, the height adjusting range of the seat assembly can be increased, the use requirements of a user in different scenes can be met, and the problems that an existing electric dining chair generally has a height adjusting function to adjust the relative height of the chair, but the adjustable range of the chair is limited, and the actual use requirements of the user cannot be met are effectively solved.

Description

Technical Field

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

[0002] In recent years, with the rapid development of smart home technology and the continuous upgrading of parenting concepts, electric high chairs have gradually become an important auxiliary tool in the field of infant feeding. Electric high chairs, with functions such as height and angle adjustment, provide parents with a convenient user experience and have become an important part of modern family parenting life.

[0003] Existing electric dining chairs typically have height adjustment functions to adjust the relative height of the seat. However, the range of adjustment is often limited and cannot meet the actual needs of users.

[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 typically have height adjustment functions to adjust the relative height of the seat, however, the adjustable range is often quite limited and cannot meet the actual needs of users, the technical solution adopted by this utility model to solve this problem is:

[0006] An electric dining chair with a height adjustment mechanism includes a chair body, the chair body including a seat assembly, a foot assembly, and a height adjustment mechanism located between the seat assembly and the foot assembly. The height adjustment mechanism includes a first height adjustment mechanism and a second height adjustment mechanism connected to the seat assembly. One side of the first height adjustment mechanism is connected to the second height adjustment mechanism, and the other side is connected to the foot assembly.

[0007] Furthermore, a connecting housing is provided at the connection between the first height adjustment mechanism and the second height adjustment mechanism. One side of the connecting housing is connected to the first height adjustment mechanism, and the other side is connected to the second height adjustment mechanism.

[0008] Furthermore, the first height adjustment mechanism includes a first actuating block, a first upper housing connected to the connecting housing, a first lower housing sleeved on the outer wall of the first upper housing and connected to the tripod assembly, a first adjustment card box disposed in the first upper housing, a first positioning plate disposed in the first lower housing, and a first metal connecting rod for connecting the first actuating block and the first adjustment card box. The first positioning plate is provided with a plurality of first positioning slots that engage with the first adjustment card box.

[0009] Furthermore, the first adjustment box includes a first front housing, a first rear housing, and a first locking block located between the first front housing and the first rear housing, all connected to the first metal connecting rod. The first front housing has a first opening on the side near the first positioning plate and an inclined protrusion inclined in the vertical direction on the side near the first rear housing. The first rear housing has a first mounting post extending toward the first positioning plate. The first locking block includes a first engaging portion that passes through the first opening and engages with the first positioning slot, a first supporting protrusion that abuts against the inclined protrusion, and a first mounting hole that engages with the first mounting post. A first spring member is provided between the first locking block and the first rear housing in the horizontal direction, and a second spring member is provided between the bottom of the first front housing and the first rear housing in the vertical direction.

[0010] Furthermore, the second height adjustment mechanism includes a second adjustment housing connected to the connecting housing and arranged in a vertical direction, a second mounting bracket sleeved on the outer wall of the second adjustment housing and connected to the seat assembly, a second positioning slot located on the second adjustment housing, and a second pin located on the second mounting bracket and inserted into the second positioning slot. The second positioning slot is spaced apart along the height direction of the second adjustment housing.

[0011] Furthermore, a second actuating block connected to the second pin is provided on one side of the second mounting bracket, and a third spring member arranged in the horizontal direction is provided between the second actuating block and the inner sidewall of the second mounting bracket.

[0012] Furthermore, the tripod assembly includes a fixed tripod connected to the first height adjustment mechanism, a folding tripod hinged to the fixed tripod, and a folding transmission mechanism located between the fixed tripod and the folding tripod, wherein the folding tripod can be flipped relative to the fixed tripod via the folding transmission mechanism.

[0013] Furthermore, the folding transmission mechanism includes a folding switch box, a folding slot located in the fixed bracket, a folding caster that is snapped together with the folding slot, and a transmission connection line for connecting the folding switch box and the folding caster. The transmission connection line can drive the folding caster to move closer to or away from the folding slot.

[0014] Furthermore, the folding switch box includes a switch slot arranged horizontally, a switch lever movable along the length of the switch slot and extending into the folding switch box, and a folding button located on the side of the folding switch box away from the switch slot and extending into the folding switch box. One end of the transmission connecting line is located inside the folding button. When the switch lever is located in the switch slot near the middle of the folding switch box, the switch lever abuts against the folding button. When the switch lever is located in the switch slot away from the middle of the folding switch box, the switch lever and the folding button are misaligned, so that the cross-section of the end of the transmission connecting line connected to the folding button is "L" shaped.

[0015] Furthermore, a swing motor is provided inside the connecting housing, and the second height adjustment mechanism can swing relative to the first height adjustment mechanism through the swing motor. A limiting mechanism is provided between the second height adjustment mechanism and the first height adjustment mechanism. When the axis of the second height adjustment mechanism coincides with the axis of the first height adjustment mechanism, the limiting mechanism restricts the swing of the seat assembly.

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

[0017] This invention incorporates a first height adjustment mechanism and a second height adjustment mechanism. The second height adjustment mechanism is connected to the seat assembly. One side of the first height adjustment mechanism is connected to the second height adjustment mechanism, and the other side is connected to the footrest assembly. Users can adjust the relative height of the second height adjustment mechanism using the first height adjustment mechanism, thereby adjusting the relative height of the seat assembly. Furthermore, the second height adjustment mechanism can also adjust the relative height of the seat assembly. The synergistic effect of the first and second height adjustment mechanisms helps to increase the range of height adjustment of the seat assembly, thus meeting the user's needs in different scenarios. This effectively solves the problem that existing electric dining chairs typically have height adjustment functions to adjust the relative height of the seat, but the adjustable range is often limited and cannot meet the actual needs of users.

[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 one of the exploded views of the first adjusting card box of this utility model;

[0023] Figure 5 This is the second exploded view of the first adjusting card box of this utility model;

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

[0025] Figure 7 This is one of the exploded view diagrams and a partially enlarged view of the dining chair body of this utility model;

[0026] Figure 8 This is a second exploded view and a partially enlarged view of the dining chair body of this utility model;

[0027] Figure 9 This is a schematic diagram of the structure of the movable telescopic rod of this utility model;

[0028] Figure 10 This is an exploded view of the movable telescopic rod of this utility model. Detailed Implementation

[0029] The embodiments of this utility model will now be described in detail with reference to the accompanying drawings.

[0030] like Figures 1 to 10 An electric dining chair with a height adjustment mechanism is shown, including a dining chair body 1. The dining chair body 1 includes a seat assembly 2, a foot assembly 3, and a height adjustment mechanism 4 located between the seat assembly 2 and the foot assembly 3. The height adjustment mechanism 4 includes a first height adjustment mechanism 5 and a second height adjustment mechanism 6 connected to the seat assembly 2. One side of the first height adjustment mechanism 5 is connected to the second height adjustment mechanism 6, and the other side is connected to the foot assembly 3.

[0031] This invention incorporates a first height adjustment mechanism and a second height adjustment mechanism. The second height adjustment mechanism is connected to the seat assembly. One side of the first height adjustment mechanism is connected to the second height adjustment mechanism, and the other side is connected to the footrest assembly. Users can adjust the relative height of the second height adjustment mechanism using the first height adjustment mechanism, thereby adjusting the relative height of the seat assembly. Furthermore, the second height adjustment mechanism can also adjust the relative height of the seat assembly. The synergistic effect of the first and second height adjustment mechanisms helps to increase the range of height adjustment of the seat assembly, thus meeting the user's needs in different scenarios. This effectively solves the problem that existing electric dining chairs typically have height adjustment functions to adjust the relative height of the seat, but the adjustable range is often limited and cannot meet the actual needs of users.

[0032] Furthermore, the first height adjustment mechanism 5 and the second height adjustment mechanism 6 form a two-stage height adjustment mode. Users can operate these two adjustment mechanisms separately to achieve more combinations of height adjustments. When the ideal height cannot be achieved using the first height adjustment mechanism 5, the second height adjustment mechanism 6 can be adjusted for fine-tuning, or the first height adjustment mechanism 5 and the second height adjustment mechanism 6 can be adjusted simultaneously to obtain a more accurate height positioning and meet the diverse needs of users for the height of the seat component 2 in different scenarios.

[0033] Furthermore, the first height adjustment mechanism 5 and the second height adjustment mechanism 6 work together to distribute the force during the adjustment process, which helps to reduce the load on individual mechanisms, thereby improving the stability and service life of the dining chair body 1.

[0034] like Figures 1 to 10 A connecting housing 11 is provided at the connection between the first height adjustment mechanism 5 and the second height adjustment mechanism 6 shown. One side of the connecting housing 11 is connected to the first height adjustment mechanism 5, and the other side is connected to the second height adjustment mechanism 6.

[0035] Furthermore, the connecting housing 11 acts as a bridge, firmly connecting the first height adjustment mechanism 5 and the second height adjustment mechanism 6 together, so that the two adjustment mechanisms maintain a relatively fixed positional relationship during operation, avoiding the impact of shaking, displacement, or other factors on the accuracy and stability of height adjustment.

[0036] Furthermore, the connecting housing 11 is designed to make the assembly of the first height adjustment mechanism 5 and the second height adjustment mechanism 6 more convenient. During the installation process, the two adjustment mechanisms can be pre-assembled separately and then quickly connected through the connecting housing 11, which greatly improves the assembly efficiency.

[0037] Furthermore, the connecting housing 11 can reasonably allocate the spatial positions of the first height adjustment mechanism 5 and the second height adjustment mechanism 6, avoiding structural complexity caused by mutual interference between the mechanisms.

[0038] like Figures 1 to 10The first height adjustment mechanism 5 shown includes a first actuating block 51, a first upper housing 52 connected to the connecting housing 11, a first lower housing 53 sleeved on the outer wall of the first upper housing 52 and connected to the leg assembly 3, a first adjustment card box 54 disposed in the first upper housing 52, a first positioning plate 55 disposed in the first lower housing 53, and a first metal connecting rod 56 for connecting the first actuating block 51 and the first adjustment card box 54. The first positioning plate 55 is provided with a plurality of first positioning slots 551 that engage with the first adjustment card box 54.

[0039] Specifically, the first adjustment box 54 is located at one end of the connection between the first upper housing 52 and the first lower housing 53. The first adjustment box 54 moves synchronously with the first upper housing 52. Under normal circumstances, the first adjustment box 54 engages with the first positioning slot 551 to fix the relative distance between the first upper housing 52 and the first lower housing 53. When the user holds the first actuating block 51, the first actuating block 51 drives the first metal connecting rod 56 to move downward in the vertical direction. The first metal connecting rod 56 drives the first adjustment box 54 to move, and the first adjustment box 54 disengages from the first positioning slot 551. At this time, the user can adjust the relative distance between the first upper housing 52 and the first lower housing 53. After adjusting to a suitable height, the user releases the first actuating block 51, the first actuating block 51 resets and drives the first metal connecting rod 56 to move upward in the vertical direction. The first adjustment box 54 engages with the first positioning slot 551 to fix the adjusted height of the first height adjustment mechanism 5.

[0040] Furthermore, through the cooperation of the first toggle block 51 and the first metal linkage 56, the user can easily operate the height adjustment action, making the height adjustment process simple and easy, and the user can quickly adjust the height of the seat assembly 2 without complicated operations.

[0041] Furthermore, the first adjustment card box 54 cooperates with the multiple first positioning card slots 551 on the first positioning plate 55 to provide multiple height adjustment levels, meeting the height needs of different users in different scenarios.

[0042] Furthermore, the sleeve structure of the first upper housing 52 and the first lower housing 53 provides stable support and protection for the first height adjustment mechanism 5, preventing the internal parts from being disturbed by external factors during the adjustment process.

[0043] Optionally, the first metal link 56 is made of stainless steel or aluminum alloy.

[0044] like Figures 1 to 10The first adjusting cartridge 54 shown 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 first 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 block extending toward the first positioning plate 55. Mounting post 5421, 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 a 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 a vertical direction.

[0045] Specifically, when the user needs to adjust the height, they grasp 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 in sync. 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 on the first positioning plate 55, that is, the first upper housing 52 can move up and down in the vertical direction relative to the first lower housing 53, thereby adjusting the relative height of the first height adjustment mechanism 5. 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 (not shown in the figure) is compressed. At the same time, the first front housing 541 moves downward in the vertical direction. 1. The bottom is pressed against the second spring (not shown in the figure) so that the second spring (not shown in the figure) is also in a compressed state; when the user adjusts to a suitable height, the first actuating block 51 is released, the first spring (not shown in the figure) and the second spring restore 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, the other side of the first actuating block 51 tilts downward, the first actuating block 51 completes the reset, at the same time, during the upward movement of the first front housing 541, the tilted protrusion 5412 moves away from the first support protrusion 5432 and the first spring restores its elastic deformation, the first spring can press the first locking block 543 to move closer to the first positioning slot 551 so that the first locking block 543 and the first positioning slot 551 are engaged to fix the adjusted height.

[0046] Furthermore, the clever cooperation between the tilting protrusion 5412 and the first support protrusion 5432 transforms the vertical movement of the first front housing 541 into the horizontal movement of the first locking block 543, enabling the first locking block 543 to quickly disengage from or engage with the first positioning slot 551, greatly improving the efficiency of height adjustment, allowing users to complete height adjustment in a short time.

[0047] Furthermore, the first and second spring components play an important role in buffering and resetting during the adjustment process. When the first locking block 543 moves away from the first positioning slot 551 and the first front housing 541, the spring components absorb the impact force, reduce wear and collision between components, and extend the service life of the adjustment mechanism. When the user releases the first toggle block 51, both the first and second spring components restore their elastic deformation, allowing each component to accurately reset, thus ensuring the reliability and stability of the first height adjustment mechanism 5.

[0048] like Figures 1 to 10 The second height adjustment mechanism 6 shown includes a second adjustment housing 61 connected to the connecting housing 11 and arranged vertically, a second mounting bracket 62 sleeved on the outer wall of the second adjustment housing 61 and connected to the seat assembly 2, a second positioning slot 611 located on the second adjustment housing 61, and a second pin 63 located on the second mounting bracket 62 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 61.

[0049] Specifically, when the user needs to adjust the height of the seat assembly 2 using the second height adjustment mechanism 6, the second pin 63 is disengaged from the second positioning slot 611. At this time, the second mounting bracket 62 can move up and down relative to the second adjustment housing 61 in the vertical direction. When the second mounting bracket 62 is adjusted to a suitable position, the second pin 63 is reinserted into the corresponding second positioning slot 611 to fix the adjusted height.

[0050] Furthermore, the second positioning slots 611 are spaced apart along the height direction of the second adjusting housing 61, providing users with multiple height adjustment positions. Users can select a suitable height position according to their own needs or usage scenarios, and insert the second pin 63 into the corresponding second positioning slot 611 to achieve precise height adjustment.

[0051] Furthermore, through the insertion and engagement of the second pin 63 with the second positioning slot 611, users can easily adjust and fix the height of the seat assembly 2 without the need for complex mechanical structures or tools. Users can simply pull out the second pin 63, adjust its position, and reinsert the second pin 63 to complete the operation, greatly improving the convenience of use.

[0052] Furthermore, the mating structure of the second positioning slot 611 and the second pin 63 ensures that after being adjusted to the specified height, the seat assembly 2 can be firmly fixed in that position and will not move unexpectedly due to external force or vibration, which is beneficial to improving the stability and reliability of the dining chair body 1.

[0053] like Figures 1 to 10 The second mounting bracket 62 shown has a second actuating block 621 connected to the second pin 63 on one side, and a third spring member 622 arranged in the horizontal direction is provided between the second actuating block 621 and the inner wall of the second mounting bracket 62.

[0054] Specifically, when the user needs to adjust the height, 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 bracket 62 can move up and down relative to the second adjusting housing 61 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 mounting bracket 62.

[0055] Furthermore, the third spring 622 ensures that after the user releases the second toggle block 621, the third spring 622 can automatically push the second toggle block 621 and the second pin 63 back to their original positions, so that the second pin 63 can be accurately inserted into the second positioning slot 611, thereby achieving automatic locking of the height of the seat assembly 2. This helps to ensure the stability and reliability of the adjusted height and avoids changes in the height of the seat assembly 2 due to accidental collisions or shaking.

[0056] Furthermore, during the adjustment process, the third spring 622 can play a role in buffering and shock absorption. When the user moves the second toggle block 621, the third spring 622 absorbs part of the impact force, reduces wear and collision between components, and extends the service life of the adjustment mechanism.

[0057] Furthermore, the second actuating block 621, the third spring 622, and the second pin 63 are integrated into the second mounting bracket 62 to make the entire second height adjustment mechanism 6 more compact and space-saving.

[0058] like Figures 1 to 10 The tripod assembly 3 shown includes a fixed tripod 31 connected to the first height adjustment mechanism 5, a folding tripod 32 hinged to the fixed tripod 31, and a folding transmission mechanism located between the fixed tripod 31 and the folding tripod 32. The folding tripod 32 can be flipped relative to the fixed tripod 31 through the folding transmission mechanism.

[0059] Furthermore, the folding leg 32 can be flipped relative to the fixed leg 31 through the folding transmission mechanism, thereby realizing the folding function of the leg assembly 3, so that the dining chair body 1 can greatly reduce the space occupied when not in use, making it convenient for storage.

[0060] Furthermore, through the folding transmission mechanism, users can easily and quickly unfold and fold the folding leg 32. When the dining chair body 1 is needed, the leg assembly 3 can be quickly unfolded to provide stable support. After the dining chair body 1 is finished using, it can be quickly folded up for easy storage.

[0061] Furthermore, in the unfolded state, the fixed leg 31 and the folding leg 32 together form a stable support structure, which can provide reliable support for the seat assembly 2 and ensure the stability and safety of the user during use. Secondly, the folding transmission mechanism has a locking function, which can lock the leg assembly 3 in a suitable position after it is unfolded, preventing the folding leg 32 from accidentally flipping over, further improving the stability and safety of the seat.

[0062] like Figures 1 to 10 The folding transmission mechanism shown includes a folding switch box 331, a folding slot 332 located in the fixed bracket 31, a folding caster 333 snapped into the folding slot 332, and a transmission connecting line 334 for connecting the folding switch box 331 and the folding caster 333. The transmission connecting line 334 can drive the folding caster 333 to move closer to or away from the folding slot 332.

[0063] Specifically, the folding slot 332 is located inside the fixed leg 31, and the folding caster 333 is located at the end where the folding leg 32 connects to the fixed leg 31. In the unfolded state, the folding caster 333 is snapped into the folding slot 332, thereby ensuring the stability of the leg assembly 3 and preventing the folding leg 32 from accidentally flipping over. When the folding leg assembly 3 is needed, the user uses the folding switch box 331 to control the relative length of the transmission connection line 334, so that the transmission connection line 334 drives the folding caster 333 away from the folding slot 332. At this time, the folding leg 32 can flip relative to the fixed leg 31.

[0064] Furthermore, when the tripod assembly 3 is unfolded and in use, the folding caster 333 is snapped into the folding slot 332, forming a stable connection structure that can effectively resist the action of external forces, ensuring that the relative position between the folding tripod 32 and the fixed tripod 31 is fixed, and preventing the folding tripod 32 from accidentally flipping over.

[0065] Furthermore, the folding switch box 331 serves as the control center of the entire folding transmission mechanism, concentrating the operation in one place. Users only need to perform simple operations on the folding switch box 331 to separate and connect the folding caster 333 and the folding slot 332, thereby controlling the unfolding and folding of the bracket assembly 3. This helps reduce the complexity of operation and improves the user experience.

[0066] like Figures 1 to 10The folding switch box 331 shown includes a switch slot 3311 arranged horizontally, a switch lever 3312 movable along the length of the switch slot 3311 and extending into the folding switch box 331, and a folding button 3313 located on the side of the folding switch box 331 away from the switch slot 3311 and extending into the folding switch box 331. One end of the transmission connecting line 334 is located inside the folding button 3313. When the switch lever 3312 is located in the switch slot 3311 near the middle of the folding switch box 331, the switch lever 3312 abuts against the folding button 3313. When the switch lever 3312 is located in the switch slot 3311 away from the middle of the folding switch box 331, the switch lever 3312 and the folding button 3313 are misaligned, so that the cross-section of the end of the transmission connecting line 334 connected to the folding button 3313 is L-shaped.

[0067] Specifically, in the unfolded state of the tripod assembly 3, the folding casters 333 are snapped into place with the folding slots 332. At this time, one end of the switch lever 3312 located inside the folding switch box 331 abuts against the other end of the folding button 3313 located inside the folding switch box 331. The cross-section of the transmission connecting line 334 connected to the folding button 3313 is in the shape of an "I". When the user needs to fold the tripod assembly 3, the switch lever 3312 is moved, causing it to move from the position in the switch slot 3311 near the middle of the folding switch box 331 to the position in the switch slot 3311 near the end of the folding switch box 331. At this time, the end of the switch lever 3312 located inside the folding switch box 331 abuts against the other end of the folding button 3313 located inside the folding switch box 331. One end of the folding switch box 331 is offset, allowing the user to press the folding button 3313 to move it closer to the switch lever 3312. One end of the transmission connecting line 334 is connected to the folding button 3313. As the folding button 3313 moves closer to the switch lever 3312, the cross-section of the end of the transmission connecting line 334 connected to the folding button 3313 changes from an "I" shape to an "L" shape. The entire transmission connecting line 334 moves closer to the interior of the folding button 3313. The other end of the transmission connecting line 334 drives the folding caster 333 to move, so that the folding caster 333 disengages from the folding slot 332. At this time, the folding bracket 32 ​​can be flipped relative to the fixed bracket 31.

[0068] Furthermore, when the switch lever 3312 is located near the center of the folding switch box 331 in the switch slot 3311, the switch lever 3312 abuts against the folding button 3313. At this time, the folding button 3313 cannot be pressed, thus preventing the tripod from accidentally folding due to accidental contact with the folding button 3313 during normal use of the tripod assembly 3, and ensuring the safety of the user.

[0069] Furthermore, when the switch lever 3312 is in the middle position, it abuts against the folding button 3313, at which time the folding button 3313 is locked, the transmission connection line 334 remains stable, and the folding caster 333 is locked in place with the folding slot 332, ensuring the stability of the bracket assembly 3. When the switch lever 3312 moves to the end position, it is misaligned with the folding button 3313. At this time, the folding button 3313 can be pressed, the cross-section of the transmission connection line 334 becomes "L" shaped, the transmission connection line 334 is pulled, the folding caster 333 disengages from the folding slot 332, allowing the folding bracket 32 ​​to flip, realizing a quick switch from "locked" to "unlocked", meeting the user's needs in different scenarios.

[0070] Furthermore, users can switch the locking and unlocking states of the folding tripod 32 simply by toggling the switch lever 3312, making the operation more intuitive and convenient. Users can fold and unfold the tripod assembly 3 without complicated steps.

[0071] Furthermore, the folding switch box 331 is provided with a reset element, such as a reset spring, for resetting the folding button 3313.

[0072] like Figures 1 to 10 The connecting housing 11 shown is equipped with a swing motor. The second height adjustment mechanism 6 can swing relative to the first height adjustment mechanism 5 through the swing motor. A limiting mechanism is provided between the second height adjustment mechanism 6 and the first height adjustment mechanism 5. When the axis of the second height adjustment mechanism 6 coincides with the axis of the first height adjustment mechanism 5, the limiting mechanism restricts the swing of the seat assembly 2.

[0073] Furthermore, the swing motor is installed in the connecting housing 11. The connecting housing 11 includes a first connecting housing connected to the first height adjustment mechanism 5 and a second connecting housing connected to the second height adjustment mechanism 6 and rotatable relative to the first connecting housing. The swing motor is installed on the first connecting housing, and the output shaft of the swing motor extends through the first connecting housing to the second connecting housing. The output shaft of the swing motor is connected to the second connecting housing. When the swing motor is operating normally, the output shaft of the swing motor drives the second connecting housing to swing. The second connecting housing is connected to the second height adjustment mechanism 6, thereby driving the second height adjustment mechanism 6 to swing.

[0074] Furthermore, by setting a limiting mechanism between the first height adjustment mechanism 5 and the second height adjustment mechanism 6, when the seat assembly 2 needs to be stationary, the axis of the second height adjustment mechanism 6 is aligned with the axis of the first height adjustment mechanism 5. Under the action of the limiting mechanism, the swing of the seat assembly 2 can be restricted, preventing the child from losing balance due to the accidental shaking of the seat assembly 2. The setting of the limiting mechanism provides an additional stabilization mechanism for the seat assembly 2, which is beneficial to improving the stability of the seat assembly 2 in a stationary state.

[0075] Specifically, the limiting mechanism includes a movable telescopic rod 71 disposed at the end of the second height adjustment mechanism 6 and a limiting groove 72 located in the first height adjustment mechanism 5. The position of the limiting groove 72 matches the axial position of the first height adjustment mechanism 5. Under normal conditions, the movable telescopic rod 71 cannot extend into the limiting groove 72. When the user needs to lock the seat assembly 2, the seat assembly 2 is swung to the axial position of the first height adjustment mechanism 5, that is, the axial position of the second height adjustment mechanism 6 coincides with the axial position of the first height adjustment mechanism 5. The movable telescopic rod 71 can adjust its relative length to shorten its extension into the limiting groove 72. After the movable telescopic rod 71 extends into the limiting groove 72, it returns to its original length so that the movable telescopic rod 71 abuts against the limiting groove 72, thereby limiting the swing of the seat assembly 2.

[0076] Furthermore, the limiting groove 72 extends along the axial direction of the first height adjustment mechanism 5. The movable telescopic rod 71 includes a first telescopic rod 711, a second telescopic rod 712, a spring member 713 located between the first telescopic rod 711 and the second telescopic rod 712, a telescopic rod mounting housing 714 sleeved on the outer walls of the first telescopic rod 711 and the second telescopic rod 712, and a drive housing 715 sleeved on the outer wall of the telescopic rod mounting housing 714 and rotatable relative to the telescopic rod mounting housing 714. The first telescopic rod 711 and the second telescopic rod 712 each have a sliding protrusion 716 on the side near the spring member 713 for telescopic movement. The rod mounting housing 714 is provided with a first sliding groove 7141 extending along the length of the telescopic rod mounting housing 714, and the drive housing 715 is provided with a second inclined groove 7151 extending obliquely from the end of the drive housing 715 towards the middle of the drive housing 715. The sliding protrusion 716 passes through both the first sliding groove 7141 and the second inclined groove 7151. When the sliding protrusion 716 moves from the end of the drive housing 715 towards the middle of the drive housing 715 in the second inclined groove 7151, the spring member 713 is in a compressed state, so that both the first telescopic rod 711 and the second telescopic rod 712 can extend into the limiting groove 72.

[0077] Specifically, both ends of the drive housing 715 are provided with second inclined grooves 7151. These second inclined grooves 7151 extend obliquely from the ends of the drive housing 715 towards the middle of the drive housing 715 and are shaped like the number "8". The sliding protrusions 716 on the first telescopic rod 711 and the second telescopic rod 712 simultaneously penetrate the first sliding groove 7141 and the second inclined groove 7151. When the user needs to insert the first telescopic rod 711 and the second telescopic rod 712 into the limiting groove 72, the drive housing 715 is rotated. The relative positions of the second inclined grooves 7151 at both ends of the drive housing 715 change, and the sliding protrusions 716 on the first telescopic rod 711 and the second telescopic rod 712 move from the ends of the second inclined groove 7151 near the drive housing 715 to the positions near the middle of the second inclined groove 7151. The first telescopic rod 711 and the second telescopic rod 712 move simultaneously toward the side closer to the spring member 713. The spring member 713 is in a compressed state, and both the first telescopic rod 711 and the second telescopic rod 712 can extend into the limiting groove 72. When the user releases the drive housing 715, the spring member 713 restores its elastic deformation. Under the action of the elastic force, the first telescopic rod 711 and the second telescopic rod 712 move simultaneously toward the direction closer to the limiting groove 72. The first telescopic rod 711 and the second telescopic rod 712 are respectively inserted into the limiting groove 72. In addition, the sliding protrusion 716 moves synchronously with the first telescopic rod 711 and the second telescopic rod 712. The sliding protrusions 716 on both sides move from the position near the middle of the second inclined groove 7151 near the middle of the drive housing 715 to the position near the end of the second inclined groove 7151 near the drive housing 715, thereby completing the reset.

[0078] The implementation method of Example 1 is as follows:

[0079] An electric dining chair with a height adjustment mechanism includes a dining chair body 1. The dining chair body 1 includes a seat assembly 2, a foot assembly 3, and a height adjustment mechanism 4 located between the seat assembly 2 and the foot assembly 3. The height adjustment mechanism 4 includes a first height adjustment mechanism 5 and a second height adjustment mechanism 6 connected to the seat assembly 2. One side of the first height adjustment mechanism 5 is connected to the second height adjustment mechanism 6, and the other side is connected to the foot assembly 3.

[0080] This invention incorporates a first height adjustment mechanism and a second height adjustment mechanism. The second height adjustment mechanism is connected to the seat assembly. One side of the first height adjustment mechanism is connected to the second height adjustment mechanism, and the other side is connected to the footrest assembly. Users can adjust the relative height of the second height adjustment mechanism using the first height adjustment mechanism, thereby adjusting the relative height of the seat assembly. Furthermore, the second height adjustment mechanism can also adjust the relative height of the seat assembly. The synergistic effect of the first and second height adjustment mechanisms helps to increase the range of height adjustment of the seat assembly, thus meeting the user's needs in different scenarios. This effectively solves the problem that existing electric dining chairs typically have height adjustment functions to adjust the relative height of the seat, but the adjustable range is often limited and cannot meet the actual needs of users.

[0081] The implementation method of Example 2 is as follows:

[0082] Based on Embodiment 1, Embodiment 2 further includes the following implementation: A connecting housing 11 is provided at the connection between the first height adjustment mechanism 5 and the second height adjustment mechanism 6. One side of the connecting housing 11 is connected to the first height adjustment mechanism 5, and the other side is connected to the second height adjustment mechanism 6.

[0083] The implementation method of Example 3 is as follows:

[0084] Based on Embodiment 2, Embodiment 3 further includes the following implementation: The first height adjustment mechanism 5 includes a first actuating block 51, a first upper housing 52 connected to the connecting housing 11, a first lower housing 53 sleeved on the outer wall of the first upper housing 52 and connected to the leg assembly 3, a first adjustment card box 54 disposed in the first upper housing 52, a first positioning plate 55 disposed in the first lower housing 53, and a first metal connecting rod 56 for connecting the first actuating block 51 and the first adjustment card box 54. The first positioning plate 55 is provided with a plurality of first positioning slots 551 that engage with the first adjustment card box 54.

[0085] The implementation method of Example 4 is as follows:

[0086] Based on Embodiment 3, Embodiment 4 further includes the following implementation: The first adjusting box 54 includes a first front housing 541, a first rear housing 542 connected to the first metal connecting rod 56, and a first locking block 543 located between the first front housing 541 and the first rear housing 542. The first 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 protrusion facing the first positioning plate 55. The first mounting post 5421 extends forward, and 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 a 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 a vertical direction.

[0087] The implementation method of Example 5 is as follows:

[0088] Based on Embodiment 2, Embodiment 5 further includes the following implementation: The second height adjustment mechanism 6 includes a second adjustment housing 61 connected to the connecting housing 11 and arranged in a vertical direction, a second mounting bracket 62 sleeved on the outer wall of the second adjustment housing 61 and connected to the seat assembly 2, a second positioning slot 611 located on the second adjustment housing 61, and a second pin 63 located on the second mounting bracket 62 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 61.

[0089] The implementation method of Example 6 is as follows:

[0090] Based on Embodiment 5, Embodiment 6 further includes the following implementation: A second actuating block 621 connected to the second pin 63 is provided on one side of the second mounting bracket 62, and a third spring member 622 arranged in the horizontal direction is provided between the second actuating block 621 and the inner wall of the second mounting bracket 62.

[0091] The implementation method of Example 7 is as follows:

[0092] Based on Embodiment 1, Embodiment 7 further includes the following implementation: The tripod assembly 3 includes a fixed tripod 31 connected to the first height adjustment mechanism 5, a folding tripod 32 hinged to the fixed tripod 31, and a folding transmission mechanism located between the fixed tripod 31 and the folding tripod 32. The folding tripod 32 can be flipped relative to the fixed tripod 31 through the folding transmission mechanism.

[0093] The implementation method of Example 8 is as follows:

[0094] Based on Embodiment 7, Embodiment 8 further includes the following implementation: The folding transmission mechanism includes a folding switch box 331, a folding slot 332 located in the fixed bracket 31, a folding caster 333 that is snapped into the folding slot 332, and a transmission connecting line 334 for connecting the folding switch box 331 and the folding caster 333. The transmission connecting line 334 can drive the folding caster 333 to move closer to or away from the folding slot 332.

[0095] The implementation method of Example 9 is as follows:

[0096] Based on Embodiment 8, Embodiment 9 further includes the following implementation: The folding switch box 331 includes a switch groove 3311 arranged in a horizontal direction, a switch lever 3312 that can move along the length of the switch groove 3311 and extends into the folding switch box 331, and a folding button 3313 located on the side of the folding switch box 331 away from the switch groove 3311 and extending into the folding switch box 331. One end of the transmission connecting line 334 is located inside the folding button 3313. When the switch lever 3312 is located in the switch groove 3311 near the middle of the folding switch box 331, the switch lever 3312 abuts against the folding button 3313. When the switch lever 3312 is located in the switch groove 3311 away from the middle of the folding switch box 331, the switch lever 3312 and the folding button 3313 are misaligned, so that the cross-section of the end of the transmission connecting line 334 connected to the folding button 3313 is "L" shaped.

[0097] The implementation method of Example 10 is as follows:

[0098] Based on Embodiment 2, Embodiment 10 further includes the following implementation: A swing motor is provided inside the connecting housing 11, and the second height adjustment mechanism 6 can swing relative to the first height adjustment mechanism 5 through the swing motor. A limiting mechanism is provided between the second height adjustment mechanism 6 and the first height adjustment mechanism 5. When the axis of the second height adjustment mechanism 6 coincides with the axis of the first height adjustment mechanism 5, the limiting mechanism restricts the swing of the seat assembly 2.

[0099] 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 height adjustment mechanism, comprising a chair body (1), characterized in that: The dining chair body (1) includes a seat assembly (2), a leg assembly (3), and a height adjustment mechanism (4) located between the seat assembly (2) and the leg assembly (3). The height adjustment mechanism (4) includes a first height adjustment mechanism (5) and a second height adjustment mechanism (6) connected to the seat assembly (2). One side of the first height adjustment mechanism (5) is connected to the second height adjustment mechanism (6), and the other side is connected to the leg assembly (3).

2. The electric dining chair having a height adjustment mechanism according to claim 1, wherein: A connecting housing (11) is provided at the connection between the first height adjustment mechanism (5) and the second height adjustment mechanism (6). One side of the connecting housing (11) is connected to the first height adjustment mechanism (5), and the other side is connected to the second height adjustment mechanism (6).

3. The electrically powered dining chair having a height adjustment mechanism according to claim 2, wherein: The first height adjustment mechanism (5) includes a first actuating block (51), a first upper housing (52) connected to the connecting housing (11), a first lower housing (53) sleeved on the outer wall of the first upper housing (52) and connected to the leg assembly (3), a first adjustment card box (54) disposed in the first upper housing (52), a first positioning plate (55) disposed in the first lower housing (53), and a first metal connecting rod (56) for connecting the first actuating block (51) and the first adjustment card box (54). The first positioning plate (55) is provided with a plurality of first positioning slots (551) that engage with the first adjustment card box (54).

4. The electrically powered dining chair having a height adjustment mechanism according to claim 3, wherein: 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 first 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 plate extending towards 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 a 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 a vertical direction.

5. The electrically powered dining chair having a height adjustment mechanism according to claim 2, wherein: The second height adjustment mechanism (6) includes a second adjustment housing (61) connected to the connecting housing (11) and arranged in the vertical direction, a second mounting bracket (62) sleeved on the outer wall of the second adjustment housing (61) and connected to the seat assembly (2), a second positioning slot (611) located on the second adjustment housing (61), and a second pin (63) located on the second mounting bracket (62) and inserted into the second positioning slot (611). The second positioning slot (611) is spaced apart along the height direction of the second adjustment housing (61).

6. An electric dining chair with a height adjustment mechanism according to claim 5, characterized in that: The second mounting bracket (62) has a second actuating block (621) connected to the second pin (63) on one side, and a third spring (622) is provided between the second actuating block (621) and the inner wall of the second mounting bracket (62) in the horizontal direction.

7. The electrically powered dining chair having a height adjustment mechanism according to claim 1, wherein: The tripod assembly (3) includes a fixed tripod (31) connected to the first height adjustment mechanism (5), a folding tripod (32) hinged to the fixed tripod (31), and a folding transmission mechanism located between the fixed tripod (31) and the folding tripod (32), wherein the folding tripod (32) can be flipped relative to the fixed tripod (31) via the folding transmission mechanism.

8. The electrically powered dining chair having a height adjustment mechanism according to claim 7, wherein: The folding transmission mechanism includes a folding switch box (331), a folding slot (332) located in the fixed bracket (31), a folding caster (333) that is snapped into the folding slot (332), and a transmission connection line (334) for connecting the folding switch box (331) and the folding caster (333). The transmission connection line (334) can drive the folding caster (333) to move closer to or away from the folding slot (332).

9. The electrically powered dining chair having a height adjustment mechanism according to claim 8, wherein: The folding switch box (331) includes a switch slot (3311) arranged horizontally, a switch lever (3312) movable along the length of the switch slot (3311) and extending into the folding switch box (331), and a folding button (3313) located on the side of the folding switch box (331) away from the switch slot (3311) and extending into the folding switch box (331). One end of the transmission connecting line (334) is located inside the folding button (3313). When the switch lever (3312) is moved along the length of the switch slot (3311) and extending into the folding switch box (331), the folding button (3312) is moved into the folding switch box (331). 312) When the switch slot (3311) is located near the middle of the folding switch box (331), the switch lever (3312) abuts against the folding button (3313); when the switch lever (3312) is located away from the middle of the folding switch box (331) in the switch slot (3311), the switch lever (3312) and the folding button (3313) are misaligned so that the cross-section of the end of the transmission connecting line (334) connected to the folding button (3313) is "L" shaped.

10. The electrically powered dining chair having a height adjustment mechanism according to claim 2, wherein: The connecting housing (11) is provided with a swing motor. The second height adjustment mechanism (6) can swing relative to the first height adjustment mechanism (5) through the swing motor. A limiting mechanism is provided between the second height adjustment mechanism (6) and the first height adjustment mechanism (5). When the axis of the second height adjustment mechanism (6) coincides with the axis of the first height adjustment mechanism (5), the limiting mechanism restricts the swing of the seat assembly (2).

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