Electric table board assembly and automobile seat

Abstract

The utility model relates to the technical field of electric table boards, and discloses an electric table board assembly and an automobile seat. The driving motor is provided with a rotating shaft, and the rotating shaft is rotatably arranged on the mounting bracket; the connecting rod mechanism comprises a first connecting rod and a second connecting rod, one end of the first connecting rod and one end of the second connecting rod are connected with the table plate, and the end, away from the table plate, of the first connecting rod is rotatably arranged on the mounting support; the end, away from the table board, of the second connecting rod is connected with a rotating shaft which can drive the second connecting rod to rotate. The table plate has an unfolding position state and a folding position state, and the driving motor can drive the table plate to be switched between the unfolding position state and the folding position state. The electric table board assembly has the advantages that the electric table board assembly is simple in overall structure, the rotating shaft directly drives the connecting rod mechanism, a gear transmission system does not need to be arranged, the structure of an existing electric table board is simplified, the movement synchronism of the two sides of the table board is good, and shaking is little.

Description

Technical Field

[0001] The utility model relates to the technical field of electric table tops, in particular to an electric table top assembly and a car seat. Background Art

[0002] Initially, the small table on the back of the car seat was mainly adjusted manually. In order to improve the convenience of use, electric table was introduced. The motor drives the gear mechanism to drive the table, so that the table can be extended from the backrest or folded onto the backrest.

[0003] The existing electric table tops generally have a complicated structure, and the synchronization between the unfolding and folding of the table tops is poor, so the table tops are prone to shaking. Utility Model Content

[0004] In view of the above-mentioned deficiencies in the prior art, the technical problem to be solved by the present invention is to provide an electric table top assembly and a car seat with a simple structure and good synchronization when the table top is unfolded and folded.

[0005] The technical solution adopted by the utility model to solve the technical problem is to propose an electric table board assembly, including:

[0006] Mounting bracket;

[0007] A driving motor, wherein the driving motor is provided with a rotating shaft, and the rotating shaft is rotatably disposed on the mounting bracket;

[0008] A connecting rod mechanism and a table top, the connecting rod mechanism comprising a first connecting rod and a second connecting rod, one end of each of the first connecting rod and the second connecting rod being connected to the table top, an end of the first connecting rod away from the table top being rotatably disposed on the mounting bracket; an end of the second connecting rod away from the table top being connected to the rotating shaft, and the rotating shaft being capable of driving the second connecting rod to rotate;

[0009] The table top has an extended position state and a folded position state, and the driving motor can drive the table top to switch between the extended position state and the folded position state.

[0010] Furthermore, two first connecting rods and two second connecting rods are symmetrically provided on the table top, and a double rocker mechanism is formed between the two first connecting rods, the two second connecting rods and the table top;

[0011] One end of the rotating shaft is connected to one of the second connecting rods, and the other end of the rotating shaft is connected to another of the second connecting rods.

[0012] Furthermore, the number of the mounting brackets is two and they are arranged at intervals;

[0013] The ends of the two first connecting rods away from the table top are rotatably arranged on the two mounting brackets, and the two ends of the rotating shaft are rotatably passed through the two mounting brackets.

[0014] Furthermore, the two mounting brackets are symmetrically arranged.

[0015] Furthermore, each end of the rotating shaft has a shaft sleeve, and the shaft sleeve is detachably fixedly connected to the rotating shaft; the two second connecting rods are respectively connected to the two shaft sleeves.

[0016] Furthermore, the second connecting rod is provided with a mounting hole, and the mounting hole has an inner wall arranged in a plane;

[0017] The shaft sleeve is inserted into the mounting hole and has an outer wall arranged in a plane, and the outer wall is in contact with the inner wall of the mounting hole so that torque can be transmitted therebetween.

[0018] Furthermore, the shaft sleeve is provided with a screw through-hole, and a screw passes through the screw through-hole to be connected to the rotating shaft, so that the shaft sleeve is detachably fixed to the rotating shaft.

[0019] Furthermore, a bushing is provided on the mounting bracket, and the shaft sleeve is rotatably arranged in the bushing.

[0020] Furthermore, a fixing bracket is connected to a mounting bracket, and the driving motor is mounted on the fixing bracket.

[0021] The technical solution adopted by the present invention to solve the technical problem is to provide a car seat, comprising:

[0022] Backrest;

[0023] The above-mentioned electric table assembly, the mounting bracket is arranged on the backrest;

[0024] When the car seat is in the designed position, the table top is in the folded position, and the table top is attached to the back side of the backrest; when the table top is in the unfolded position, the table top is arranged horizontally.

[0025] Compared with the prior art, the present invention has at least the following beneficial effects:

[0026] In the present invention, a rotating shaft is provided on the driving motor, and the rotating shaft is directly connected to the second connection, so that when the rotating shaft rotates, it can drive the connecting rod mechanism and the table top, so that the table top can switch between the expanded position state and the folded position state. The overall structure is very simple, and the rotating shaft directly drives the connecting rod mechanism, and there is no need to set up a gear transmission system, which simplifies the structure of the existing electric table top. Furthermore, the two ends of the rotating shaft are respectively connected to two symmetrical second connecting rods. When the rotating shaft rotates, the two second connecting rods can rotate synchronously, ensuring that the two sides of the table top move synchronously. When the table top is folded and expanded, and when in use, it is ensured that the table top will not be subjected to force on one side and twist, thereby achieving true synchronization between the left and right sides, with good synchronization, less shaking, and good rigidity. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] Figure 1 This is a structural diagram of the electric table top assembly of the utility model when the table top is in the unfolded position;

[0028] Figure 2 This is a structural diagram of the electric table top assembly of the utility model when the table top is in the folded position;

[0029] Figure 3 for Figure 1 Stereoscopic image of

[0030] Figure 4 for Figure 3 Structural diagram from another perspective;

[0031] Figure 5 for Figure 2 Stereoscopic image of

[0032] Figure 6 for Figure 3 Schematic diagram of the structure after removing the table top;

[0033] Figure 7 for Figure 1 Schematic diagram of the structure after removing the table top;

[0034] Figure 8 for Figure 5 Schematic diagram of the structure after removing the table top;

[0035] Figure 9 for Figure 2 Schematic diagram of the structure after removing the table top;

[0036] Figure 10 This is an exploded view of the second connecting rod and the rotating shaft.

[0037] In the picture:

[0038] 1. Mounting bracket; 11. Bushing; 12. Fixing bracket;

[0039] 2. Drive motor; 20. Rotating shaft; 21. Bushing; 211. Outer wall; 212. Screw hole;

[0040] 3. Connecting rod mechanism; 31. First connecting rod; 32. Second connecting rod; 320. Mounting hole; 320A. Inner wall;

[0041] 4. Table top. DETAILED DESCRIPTION

[0042] The following are specific embodiments of the present invention and the accompanying drawings to further describe the technical solution of the present invention, but the present invention is not limited to these embodiments.

[0043] It should be noted that all directional indications (such as up, down, left, right, front, back, etc.) in the embodiments of the present invention are only used to explain the relative position relationship, movement status, etc. between the various components under a certain specific posture (as shown in the accompanying drawings). If the specific posture changes, the directional indication will also change accordingly.

[0044] In addition, terms such as "first," "second," and "an" in this utility model are for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of the technical features indicated. Therefore, features specified as "first" or "second" may explicitly or implicitly include at least one such feature. In the description of this utility model, "plurality" means at least two, such as two, three, etc., unless otherwise specifically defined.

[0045] In this utility model, unless otherwise specified or limited, the terms "connection" and "fixation" should be understood in a broad sense. For example, "fixation" can mean fixed connection, detachable connection, or integration; mechanical connection or electrical connection; direct connection or indirect connection through an intermediate medium; internal communication between two elements or interaction between two elements, unless otherwise specified. For those skilled in the art, the specific meanings of the above terms in this utility model can be understood according to specific circumstances.

[0046] In addition, the technical solutions between the various embodiments of the present invention can be combined with each other, but it must be based on the fact that ordinary technicians in this field can implement it. When the combination of technical solutions is contradictory or cannot be implemented, it should be deemed that such a combination of technical solutions does not exist and is not within the scope of protection required by this utility model.

[0047] like Figures 1-6As shown, an electric tabletop assembly can be used on a car seat. When installed on a car seat, it is configured on the car seat backrest. When the car seat is in the designed position, the tabletop 4 is in the folded position, and the tabletop 4 is attached to the back of the backrest, ensuring that the tabletop 4 does not occupy the back space of the backrest. The tabletop 4 is in the non-use state at this time. When the tabletop 4 is in the extended position, the tabletop 4 is arranged horizontally, and rear passengers in the car seat can place items on the tabletop 4 for their convenience. The tabletop 4 is in the use state at this time.

[0048] The electric table top assembly of this embodiment mainly includes: a mounting bracket 1 , a driving motor 2 , a connecting rod mechanism 3 and a table top 4 , wherein the connecting rod mechanism 3 mainly includes: a first connecting rod 31 and a second connecting rod 32 .

[0049] The drive motor 2 is provided with a rotating shaft 20. It can be understood that the drive motor 2 of this embodiment is a through-shaft motor, and its rotating shaft 20 is rotatably arranged on two mounting brackets 1. Among them, a fixed bracket 12 is connected to one mounting bracket 1, and the drive motor 2 is mounted on the fixed bracket 12. Specifically, both ends of the rotating shaft 20 of this embodiment have a shaft sleeve 21 that is detachably fixedly connected thereto, and the shaft sleeve 21 can be regarded as a part of the rotating shaft 20. A shaft sleeve 21 is provided at each end of the shaft sleeve 21, and its purpose is to facilitate the assembly of the rotating shaft 20 and the second connecting rod 32. Specifically, a screw through hole 212 is provided on the shaft sleeve 21, and the screw passes through the screw through hole 212 to be connected to the rotating shaft 20, so that the shaft sleeve 21 is detachably fixedly connected to the rotating shaft 20.

[0050] In the connecting rod mechanism 3 and the table board 4, the connecting rod mechanism 3 includes a first connecting rod 31 and a second connecting rod 32, one end of the first connecting rod 31 and the second connecting rod 32 are both connected to the table board 4, and the end of the first connecting rod 31 away from the table board 4 is rotatably set on the mounting bracket 1; the end of the second connecting rod 32 away from the table board 4 is connected to the rotating shaft 20, and the rotating shaft 20 can drive the second connecting rod 32 to rotate. The table board 4 of this embodiment has an expanded position state and a folded position state. The driving motor 2 can drive the table board 4 to switch between the expanded position state and the folded position state. When the table board 4 is in the expanded position state, the lower surface of the first connecting rod 31 can be counteracted with the upper surface of the second connecting rod 32 to achieve the limitation of the table board 4 and ensure the stability of the table board 4 after expansion.

[0051] Specifically, the table top 4 of this embodiment is symmetrically provided with a first connecting rod 31 near its left and right sides, and two second connecting rods 32 are symmetrically provided. A double rocker mechanism is formed between the two first connecting rods 31, the two second connecting rods 32, and the table top 4. When the drive motor 2 rotates through the rotating shaft 20, it can drive the second connecting rods 32 to rotate, and the double rocker mechanism is activated, so that the table top 4 can move between a folded position and an unfolded position. Among them, one end of the rotating shaft 20 is connected to a second connecting rod 32, and the other end of the rotating shaft 20 is connected to another second connecting rod 32. That is, when the rotating shaft 20 of this embodiment rotates, it synchronously drives the two second connecting rods 32, so that the two second connecting rods 32 move synchronously, which can truly ensure the synchronization of the left and right movements of the table top 4. That is, in this embodiment, the two ends of the rotating shaft 20 are respectively connected to two symmetrical second connecting rods 32. When the rotating shaft 20 rotates, the two second connecting rods 32 can rotate synchronously, ensuring that the two sides of the table top 4 move synchronously. When the table top 4 is folded and unfolded, and when in use, it is ensured that the table top 4 will not be subjected to force on one side and twisted, thereby achieving true synchronization between the left and right sides, with good synchronization, less shaking, and good rigidity.

[0052] like Figures 6-10 As shown, the present embodiment includes two mounting brackets 1, which are spaced apart and symmetrically arranged. The ends of the two first connecting rods 31 away from the table top 4 are rotatably mounted on the two mounting brackets 1, and the ends of the rotating shaft 20 are rotatably mounted on the two mounting brackets 1.

[0053] Specifically, each end of the rotating shaft 20 has a sleeve 21, which is detachably fixed to the rotating shaft 20 via screws. Two second connecting rods 32 are respectively connected to the sleeves 21. The second connecting rod 32 has a mounting hole 320, which has a planar inner wall 320A and a D-shaped cross-section. The sleeve 21 is inserted into the mounting hole 320 and has a planar outer wall 211 that abuts against the inner wall 320A of the mounting hole 320, allowing torque to be transmitted therebetween.

[0054] Preferably, a bushing 11 is provided on the mounting bracket 1 , and the shaft sleeve 21 is rotatably disposed in the bushing 11 to ensure smooth rotation of the rotating shaft 20 and facilitate replacement when the bushing 11 is worn.

[0055] The working principle of the electric table top assembly of this embodiment is as follows: when the table top 4 is in the folded position (such as Figure 2 When the table top 4 needs to be unfolded for use, the driving motor 2 rotates the shaft 20, which drives the two second connecting rods 32 to rotate synchronously, thereby causing the two first connecting rods 31 and the table top 4 to move, switching the table top 4 to the unfolded position (as shown). Figure 1As shown in FIG), the drive motor 2 stops working, and a Hall element can also be set to send Hall information to control the start and stop of the drive motor 2. The folding process of the table top 4 is opposite to the unfolding process.

[0056] In this embodiment, the drive motor 2 is equipped with a rotating shaft 20, which is directly connected to the second connection. Rotating the rotating shaft 20 drives the connecting rod mechanism 3 and the table top 4, thereby switching the table top 4 between the extended and folded positions. The overall structure is very simple. The rotating shaft 20 directly drives the connecting rod mechanism 3, eliminating the need for a gear transmission system and simplifying the structure of existing electric table tops.

Claims

1. An electric tabletop assembly, characterized in that: include: Mounting bracket; A driving motor, wherein the driving motor is provided with a rotating shaft, and the rotating shaft is rotatably disposed on the mounting bracket; A connecting rod mechanism and a table top, the connecting rod mechanism comprising a first connecting rod and a second connecting rod, one end of each of the first connecting rod and the second connecting rod being connected to the table top, an end of the first connecting rod away from the table top being rotatably disposed on the mounting bracket; an end of the second connecting rod away from the table top being connected to the rotating shaft, and the rotating shaft being capable of driving the second connecting rod to rotate; The table top has an extended position state and a folded position state, and the driving motor can drive the table top to switch between the extended position state and the folded position state.

2. The electric table top assembly according to claim 1, characterized in that: Two first connecting rods are symmetrically provided on the table top, and two second connecting rods are symmetrically provided on the table top, and a double rocker mechanism is formed between the two first connecting rods, the two second connecting rods and the table top; One end of the rotating shaft is connected to one of the second connecting rods, and the other end of the rotating shaft is connected to another of the second connecting rods.

3. The electric table top assembly according to claim 2, characterized in that: There are two mounting brackets, which are spaced apart. The ends of the two first connecting rods away from the table top are rotatably arranged on the two mounting brackets, and the two ends of the rotating shaft are rotatably passed through the two mounting brackets.

4. The electric table top assembly according to claim 3, characterized in that: The two mounting brackets are symmetrically arranged.

5. The electric table top assembly according to claim 2, characterized in that: Each end of the rotating shaft is provided with a shaft sleeve, and the shaft sleeve is detachably fixedly connected to the rotating shaft; the two second connecting rods are respectively connected to the two shaft sleeves.

6. The electric table top assembly according to claim 5, characterized in that: The second connecting rod is provided with a mounting hole, and the mounting hole has a planar inner wall; The shaft sleeve is inserted into the mounting hole and has an outer wall arranged in a plane, and the outer wall is in contact with the inner wall of the mounting hole so that torque can be transmitted therebetween.

7. The electric table top assembly according to claim 5, characterized in that: The shaft sleeve is provided with a screw through hole, and a screw passes through the screw through hole to be connected to the rotating shaft, so that the shaft sleeve is detachably fixed to the rotating shaft.

8. The electric table top assembly according to claim 5, characterized in that: The mounting bracket is provided with a bushing, and the shaft sleeve is rotatably arranged in the bushing.

9. The electric table top assembly according to claim 3, characterized in that: A fixing bracket is connected to the mounting bracket, and the driving motor is mounted on the fixing bracket.

10. A car seat, characterized in that: include: Backrest; The electric table top assembly according to any one of claims 1 to 9, wherein the mounting bracket is provided on the backrest; When the car seat is in the designed position, the table top is in the folded position, and the table top is attached to the back side of the backrest; When the table top is in the unfolded position, the table top is arranged horizontally.

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