CN116849478A - Foldable seating and modular cabinets - Google Patents

Abstract

The invention relates to a foldable seat and a combination cabinet, which includes a seat plate. A cross-link lifting mechanism is provided under the seat plate. The seat plate is also provided with a locking device. The locking device includes a latch that is slidable relative to the seat plate. , the cross-link lifting mechanism includes two cross-hinged connecting rods, the connecting rods are provided with fittings, and the fittings are provided with sockets. When the seat is in the unfolded state, the sockets Aligned with the latch, the latch can be inserted into the socket. The seat can be unfolded for people to sit on, or folded and stored. It is easy to use and simple to store and does not take up space. When used in a modular cabinet, the seats can be folded and stored under the cabinet to prevent the seats from being placed outside for a long time and tripping passers-by, thus improving the safety of use.

Description

Foldable seating and modular cabinets

Technical field

The present invention relates to the technical field of furniture, and in particular to foldable seats and modular cabinets.

Background technique

Bathroom cabinets are mainly used for washing and storing items. Users are tired from standing for a long time while using bathroom cabinets, which results in a poor experience. Children may not be tall enough to use bathroom cabinets conveniently. Under normal circumstances, parents may place a step stool next to the bathroom cabinet for the convenience of children. However, when not needed, the step stool will block the passage and may trip the user, posing a safety hazard.

Contents of the invention

Based on this, it is necessary to provide a foldable seat and a modular cabinet to address the above problems. The seat can be unfolded for people to sit on or folded and stored. It is easy to use and simple to store and does not take up space. When used in a modular cabinet, the seats can be folded and stored under the cabinet to prevent the seats from being placed outside for a long time and tripping passers-by, thus improving the safety of use.

A foldable seat, including:

The seat board is provided with a cross-link lifting mechanism for raising and lowering the seat board. When the cross-link lifting mechanism is raised, the seat is in an unfolded state. When the cross-link lifting mechanism is lowered, the seat is in an unfolded state. The seat is in a folded state;

The seat is also provided with a locking device, which includes a latch that is slidable relative to the seat. The cross-link lifting mechanism includes two cross-hinged connecting rods, and the connecting rods are provided with matching The fitting part is provided with a socket. When the seat is in an unfolded state, the socket is aligned with the latch, and the latch can be inserted into the socket.

In one embodiment, the two connecting rods of the cross-link lifting mechanism are provided with the fitting parts, each of the fitting parts is provided with the insertion hole, and each of the fitting parts is provided with at the end corresponding to the connecting rod;

The locking device includes two latch pins, and the latch pins correspond to the sockets one by one.

In one embodiment, the locking device further includes a trapezoidal member and a first elastic member. The first elastic member is used to provide force for the trapezoidal member. The first elastic member provides force for the trapezoidal member. The force direction is consistent with the direction from the lower bottom surface of the trapezoidal component to the upper bottom surface, and the two latch pins are respectively driven and matched with the two slopes of the trapezoidal component, so that the trapezoidal component can be the two latch pins. At the same time, the force for inserting into the corresponding jacks is provided.

In one embodiment, the insertion directions of the two plug pins inserted into the corresponding sockets are opposite, the inclined surface of the trapezoidal member intersects with the insertion direction of the corresponding plug pins, and the two plug pins are respectively pressed against the corresponding insertion holes. on the two slopes of the trapezoidal piece.

In one of the embodiments, the locking device further includes a device housing, the device housing is connected to the seat plate, and the ladder-shaped component is movably installed in the device housing, so that the ladder-shaped component The latch can slide back and forth relative to the device housing in the direction of the force of the first elastic member, which acts between the device housing and the trapezoidal member, and the latch is slidable. Installed on the device housing.

In one of the embodiments, the locking device further includes a return elastic unit, and the return elastic unit includes two action parts, and the two action parts are respectively connected or abutted with the two latch pins for corresponding The latch provides force in the direction of exiting the socket.

In one embodiment, the return elastic unit includes two second elastic members, one end of the two second elastic members is connected to the device housing, and the other end of the two second elastic members Connected to two plug pins respectively, the force direction provided by the second elastic member to the plug pin is opposite to the insertion direction of the corresponding plug pin.

In one of the embodiments, each of the plugs includes a sliding part and an inserting part connected to each other, the sliding part slidingly cooperates with the device housing, the inserting part is located outside the device housing, and the inserting part The two sliding parts are respectively located on both sides of the connecting protrusion along the sliding direction of the latch relative to the device housing. Each second elastic member is connected between the connecting protrusion and the corresponding sliding part;

The connecting protrusion and the second elastic member are both located on one side of the trapezoidal member. Each of the plugs also includes a contact portion, the contact portion is connected to the sliding portion, and the contact portion The first part is suspended outside the sliding part and contacts the inclined surface.

In one embodiment, the fitting part has a cylindrical structure, the insertion direction corresponding to the insertion hole is perpendicular to the axial direction of the fitting part, and the axial direction of the fitting part is consistent with the rotation of the two connecting rods. The defined plane of motion is vertical.

In one embodiment, the foldable seat further includes two sets of support units, each set of support units including two support legs and a connecting rod connecting the two support legs;

The foldable seat further includes a seat frame, and the cross-link lifting mechanism is assembled between the seat panel and the seat frame, so that the seat panel can be raised and lowered relative to the seat frame, and the two sets of supports The units are all arranged on the base frame, the four support leg segments are at four corners of a rectangle, and the two connecting rods pass through the base frame and can rotate relative to the base frame;

A linkage mechanism is provided on the seat frame, and the linkage mechanism is connected between the two connecting rods so that the two connecting rods can rotate in opposite directions at the same time.

In one embodiment, the linkage mechanism includes two groups of chain transmission mechanisms, each group of the chain transmission mechanisms includes two sprockets and a chain wound around the two sprockets, and the two connecting The rods are respectively connected to one of the sprockets in the two groups of chain transmission mechanisms. The other two sprockets in the two groups of chain transmission mechanisms are additionally provided with transmission wheels, and the two transmission wheels are meshed.

In one embodiment, guides are provided on the seat plate at positions corresponding to the cross-link lifting mechanism. The guides are provided with first chute, and the guide direction of the first chute is consistent with the direction of the first chute. The lifting direction of the cross-link lifting mechanism is vertical, the fitting piece is slidably fitted in the first chute, the locking device is installed on the guide piece, and the fitting piece is located on the extension line of the latch. superior;

The seat frame is provided with a second chute at the position where each link acts. The guiding direction of the second chute is perpendicular to the lifting direction of the cross-link lifting mechanism. A sliding pin is provided at the end, and the sliding pin is slidably fitted in the second slide groove;

The foldable seat includes two cross-link lifting mechanisms, and the two cross-link lifting mechanisms are spaced apart at both ends of the seat plate;

Two locking devices are provided on the seat plate, and the two locking devices correspond to the two cross-link lifting mechanisms one by one.

A combination cabinet includes a cabinet and the foldable seat described in any one of the above items, and the foldable seat is installed on the bottom of the cabinet in a pull-out manner.

The above solution provides a foldable seat and a modular cabinet. The seat can be unfolded for people to sit on or folded and stored. It is easy to use and simple to store without taking up space. When used in a modular cabinet, the seats can be folded and stored under the cabinet to prevent the seats from being placed outside for a long time and tripping passers-by, thus improving the safety of use. Specifically, when the seat needs to be unfolded, an upward force is applied to the seat, and the two links of the cross-link lifting mechanism are unfolded. When the links are unfolded to a certain extent with the seat, the matching parts at the top of the links The socket on the seat moves to a position aligned with the latch. At this time, the latch is inserted into the socket, thereby fixing the connecting rod and the seat plate, so that the seat is in a stable unfolded state. When the seat needs to be folded and stored, the latch is taken out from the socket, so that the lock between the connecting rod and the seat plate is released, and then the cross-link lifting mechanism can be folded and the seat plate can be lowered.

Description of the drawings

The drawings forming a part of this application are used to provide a further understanding of the present invention. The illustrative embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an improper limitation of the present invention.

In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings needed to be used in the description of the embodiments will be briefly introduced below. Obviously, the drawings in the following description are only some embodiments of the present invention. For those of ordinary skill in the art, other drawings can also be obtained based on these drawings without exerting creative efforts.

Figure 1 is a schematic structural diagram of the foldable seat according to this embodiment;

Figure 2 is a schematic structural diagram of the foldable seat according to this embodiment from another perspective;

Figure 3 is an exploded view of the foldable seat shown in Figure 1 behind the seat panel;

Figure 4 is a schematic diagram of the foldable seat in this embodiment when it is in an unfolded state;

Figure 5 is a schematic diagram of the foldable seat in the storage process according to this embodiment;

Figure 6 is an exploded view of the locking device according to this embodiment;

Figure 7 is an exploded view of the locking device shown in Figure 6 from another perspective;

Figure 8 is a schematic structural diagram of a combination cabinet according to another embodiment.

Explanation of reference symbols:

10. Seat; 11. Seat; 111. Guide; 1111. First chute; 12. Cross-link lifting mechanism; 121. Connecting rod; 122. Fitting parts; 1221. Jack; 123. Sliding pin; 13 , locking device; 131. device housing; 1311. connection protrusion; 132. latch; 1321. sliding part; 1322. insertion part; 1323. abutting part; 133. trapezoidal piece; 1331. rectangular plate; 1332. inclined plate ; 134. First elastic member; 135. Reset elastic unit; 1351. Second elastic member; 14. Seat frame; 141. Second chute; 15. Support unit; 151. Support leg; 152. Connecting rod; 16. Chain transmission mechanism; 161, sprocket; 162, chain; 163, transmission wheel; 20, combination cabinet; 21, cabinet body.

Detailed ways

In order to make the above objects, features and advantages of the present invention more obvious and easy to understand, the specific embodiments of the present invention will be described in detail below with reference to the accompanying drawings. In the following description, numerous specific details are set forth in order to provide a thorough understanding of the invention. However, the present invention can be implemented in many other ways different from those described here. Those skilled in the art can make similar improvements without departing from the connotation of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed below.

Both stools and chairs belong to the seat 10, and the foldable seat 10 refers to the seat 10 that can be folded and stored. As shown in FIGS. 1 to 3 , in some embodiments, the present application provides a foldable seat 10 , including a seat plate 11 , a cross-link lifting mechanism 12 and a locking device 13 .

The cross-link lifting mechanism 12 is provided under the seat 11 and is used to raise and lower the seat 11 . When the cross-link lifting mechanism 12 is raised, the seat 10 is in an unfolded state, and when the cross-link lifting mechanism 12 is lowered, the seat 10 is in a folded state. The locking device 13 is provided on the seat 11 .

As shown in FIGS. 3 to 5 , the locking device 13 includes a latch 132 that is slidable relative to the seat plate 11 , and the cross-link lifting mechanism 12 includes two cross-hinged connecting rods 121 . 121 is provided with a matching piece 122, and the fitting piece 122 is provided with an insertion hole 1221. When the seat 10 is in the unfolded state, the insertion hole 1221 is aligned with the latch 132, and the latch 132 can be inserted into the jack 1221.

The two links 121 included in the cross-link lifting mechanism 12 can rotate relative to each other. The matching piece 122 is provided on the connecting rods 121 and the insertion hole 1221 is formed in the matching piece 122 . Therefore, the angle between the installation direction of the socket 1221 and the length direction of the connecting rod 121 is a constant value. When the connecting rod 121 rotates, the orientation of the socket 1221 will change. As shown in Figure 4, only when the cross-link lifting mechanism 12 is raised, the socket 1221 is aligned with the latch 132, and the latch 132 is inserted into the socket 1221, thereby fixing the relative position between the seat plate 11 and the connecting rod 121. , and the seat 10 remains in the unfolded state. When the seat 10 needs to be folded, the latch 132 is first pulled out from the socket 1221, and then the two connecting rods 121 rotate relative to each other, as shown in Figure 5. Once the connecting rod 121 rotates, the direction of the socket 1221 changes. Change occurs, and the jack 1221 and the plug 132 are no longer aligned, so the plug 132 cannot be inserted into the jack 1221.

In some cases, if the latch 132 is always subjected to a force that causes the latch 132 to always slide in the insertion direction relative to the seat plate 11 , then as shown in FIG. 5 , the connecting rod 121 rotates so that the socket 1221 When no longer aligned with the latch 132 , the latch 132 will press against the surface of the mating piece 122 .

As shown in FIGS. 3 to 5 , in some embodiments, the insertion direction of the latch 132 is perpendicular to the lifting direction of the seat plate 11 . When the two connecting rods 121 rotate relative to each other, the seat plate 11 rises and falls simultaneously, and the fitting piece 122 slides relative to the seat plate 11 in a direction perpendicular to the lifting direction. The fitting piece 122 rotates relative to the seat plate 11 while sliding relative to the seat plate 11 , so the orientation of the insertion hole 1221 changes. The fitting piece 122 is located in the insertion direction of the plug pin 132. Before the fitting piece 122 rotates to align the insertion hole 1221 with the plug pin 132, the plug pin 132 can press against the surface of the fitting piece 122.

As shown in Figure 2, in some embodiments, guides 111 are provided on the seat plate at positions corresponding to the cross-link lifting mechanism 12, and the guides 111 are provided with first chute 1111. The guiding direction of the first chute 1111 is perpendicular to the lifting direction of the cross-link lifting mechanism 12 , and the fitting piece 122 is slidably fitted in the first chute 1111 . When the two links 121 of the cross-link lifting mechanism 12 rotate relative to each other, the fitting piece 122 rotates while sliding in the first slide groove 1111 .

In some embodiments, as shown in FIG. 3 , the two links 121 of the cross-link lifting mechanism 12 are provided with the fitting parts 122 , and each of the fitting parts 122 is provided with the Jack 1221. Each fitting piece 122 is provided at an end corresponding to the connecting rod 121 .

The locking device 13 includes two latch pins 132 , and the latch pins 132 correspond to the socket holes 1221 one-to-one.

After the seat panel 11 is lifted up and the seat 10 is in the unfolded state, the two latches 132 are inserted into the two sockets 1221 respectively, so that the seat 10 can be stably maintained in the unfolded state.

As shown in FIG. 2 , in some embodiments, a first chute 1111 is provided on the guide member 111 at a position corresponding to each matching piece 122 , and the matching pieces 122 are assembled in the first chute 1111 one by one.

Further, in some embodiments, as shown in Figures 3, 6 and 7, the locking device 13 also includes a trapezoidal member 133 and a first elastic member 134. The first elastic member 134 is used to provide the The trapezoidal component 133 provides a force, and the direction of the force provided by the first elastic component 134 to the trapezoidal component 133 is consistent with the direction from the lower bottom surface to the upper bottom surface of the trapezoidal component 133 . Specifically, in some embodiments, one end of the first elastic member 134 is connected or abutted with the ladder member 133 , and the other end of the first elastic member 134 directly or indirectly acts on the seat panel 11 , so the trapezoid member 133 has a relative position relative to the seat panel 11 . The tendency of moving along the direction from the lower bottom surface of the trapezoidal component 133 to the upper bottom surface.

The two latch pins 132 are respectively in transmission cooperation with the two slopes of the trapezoidal component 133, so that the trapezoidal component 133 can simultaneously provide the force for the two latch pins 132 to be inserted into the corresponding sockets 1221 respectively.

The movement tendency of the ladder piece 133 can be transmitted to the latch 132 so that the latch 132 has a tendency to move in the insertion direction relative to the seat plate 11 . When the connecting rod 121 rotates to a predetermined position so that the socket 1221 is aligned with the latch 132, the latch 132 is automatically inserted into the socket 1221. Before the connecting rod 121 rotates to the predetermined position, the socket 1221 and the latch 132 are not aligned, and the latch 132 will press against the surface of the mating piece 122 under the action of the trapezoidal piece 133 .

The specific transmission cooperation mode between the corresponding slope of the latch 132 and the trapezoidal component 133 can be diverse, as long as it can transmit the movement trend of the trapezoidal component 133 to the latch 132, so that it can always have a relative position relative to the seat plate. 11The trend of moving along the insertion direction is enough. The latch 132 and the inclined surface of the trapezoidal piece 133 can directly contact each other, or an intermediate transmission structure can be provided, which is not specifically limited here.

Specifically, in some embodiments, as shown in Figures 3, 6 and 7, the two plug pins 132 are inserted into the corresponding jacks 1221 in opposite directions, and the inclined surface of the ladder member 133 is oriented in the same direction as the corresponding plug hole. The insertion directions of the two latch pins 132 intersect, and the two latch pins 132 are pressed against the two inclined surfaces of the trapezoidal piece 133 respectively.

From the perspective shown in FIGS. 6 and 7 , arrow F1 is the direction from the lower bottom surface of the trapezoidal component 133 to the upper bottom surface, and this direction is defined as the first direction. When the ladder member 133 moves in the first direction relative to the seat plate 11, the displacement of the latch 132 relative to the seat plate 11 in the first direction is limited, and the latch 132 presses against the slope of the trapezoidal member 133, so the latch 132 only It can be adapted to the movement process of the ladder member 133 by sliding relative to the seat plate 11 in the insertion direction, and finally achieves the purpose of driving the latch 132 to move in the insertion direction.

As shown in Figures 3, 6 and 7, in some embodiments, the ladder member 133 is a plate member bent into a trapezoid shape. The plate member includes a long rectangular plate 1331 and two rectangular plates 1331 and 1331, respectively. 1331 is an inclined inclined plate 1332, and the surface of the inclined plate 1332 is the inclined surface of the trapezoidal piece 133. The side of the two inclined plates 1332 away from the rectangular plate 1331 is located on the aforementioned lower bottom surface or upper bottom surface, and the corresponding rectangular plate 1331 is located on the aforementioned upper bottom surface or lower bottom surface.

Optionally, the ladder member 133 may also be a block structure, and the cross-sectional shape of the block structure is a trapezoid.

Further, in some embodiments, as shown in FIGS. 3 , 6 and 7 , the locking device 13 further includes a device housing 131 . The device housing 131 is connected to the seat 11 . The ladder member 133 is movably installed in the device housing 131 so that the ladder member can slide back and forth in the force direction of the first elastic member 134 relative to the device housing. An elastic member 134 acts between the device housing 131 and the trapezoidal member 133 . Under the action of the first elastic member 134 , the trapezoidal member 133 has a tendency to move in the first direction relative to the device housing 131 .

Specifically, in one embodiment, as shown in Figures 3, 6 and 7, the ladder member 133 includes a rectangular plate 1331 and two inclined plates 1332. The ladder member 133 is placed in the device housing 131, and the first elastic member 134 is located In the space enclosed by the trapezoidal member 133 and the device housing 131 , the first elastic member 134 is in contact between the device housing 131 and the rectangular plate 1331 . Without the binding effect of the latch 132 , the trapezoidal component 133 will slide in the first direction relative to the device housing 131 under the action of the first elastic component 134 .

Optionally, in another embodiment, the trapezoidal component 133 is a block structure with a trapezoidal cross-section. The trapezoidal component 133 is slidably disposed in the device housing 131 , and the first elastic component 134 abuts on the device housing 131 and the lower bottom surface of the trapezoidal member 133.

As shown in FIGS. 6 and 7 , the latch 132 is slidably installed on the device housing 131 . The direction in which the latch 132 is slidable relative to the device housing 131 is the insertion direction of the latch 132 .

The first elastic member 134 provides the trapezoidal member 133 with an elastic force to move in the first direction, and the trapezoidal member 133 transfers this force to the latch 132 so that the latch 132 has a tendency to move in the insertion direction.

Specifically, in one embodiment, as shown in FIGS. 6 and 7 , two pins 132 are slidably installed on the device housing 131 , and the two pins 132 protrude from two opposite walls of the device housing 131 .

Furthermore, in some embodiments, as shown in FIGS. 6 and 7 , the locking device 13 further includes a return elastic unit 135 , and the return elastic unit 135 includes two action parts, and the two action parts They are respectively connected or abutted with two plug pins 132 to provide the corresponding plug pin 132 with a force in the direction of exiting the socket 1221 .

The trapezoidal component 133 provides the latch 132 with a force to move in the insertion direction, and the reset elastic unit 135 provides the latch 132 with a force in the opposite direction. When no external force is applied to the trapezoidal member 133, the force exerted by the first elastic member 134 is transmitted to the latch 132 through the trapezoidal member 133. The force that the latch 132 receives to move along the insertion direction is greater than the reset elasticity. Unit 135 provides a counter force to latch 132 . Therefore, in summary, the plug 132 still has a tendency to move in the insertion direction.

As shown in Figures 1 to 3, the seat plate 11 is placed on the cross-link lifting mechanism 12, and the locking device 13 is provided on the seat plate 11. The seat plate 11 provides downward force for the connecting rod 121, and the latch 132 provides a downward force for the fitting 122. Pushing force in the direction of insertion. When the connecting rod 121 rotates to a predetermined position, the latch 132 is inserted into the socket 1221, the seat plate 11 and the cross-link lifting mechanism 12 form a stable force-bearing structure, and the seat 10 is maintained in the unfolded state.

When the seat 10 is in the unfolded state, the return elastic unit 135 provides the latch 132 with a force in the insertion direction in the opposite direction, but this force is not enough to offset the force along the insertion direction provided by the trapezoid 133 for the latch 132 .

When the seat 10 needs to be folded and stored, a force in the opposite direction along the first direction is manually provided to the ladder member 133 to overcome the elastic force of the first elastic member 134, and then the ladder member 133 moves along the first direction relative to the seat plate 11 or the device housing 131. When the ladder member 133 slides in the reverse direction, the latch 132 will move in the reverse direction along the insertion direction under the action of the reset elastic unit 135, and then the latch 132 can exit the socket 1221. After the latch 132 withdraws from the socket 1221, it continues to provide a downward force for the seat 11. The connecting rod 121 will rotate under the action of the seat 11, the cross-link lifting mechanism 12 is lowered, and the seat 10 is folded.

Specifically, in one embodiment, as shown in Figures 2 and 3, the first direction is longitudinally upward. When the seat 10 is folded, a downward force can be manually provided for the ladder member 133 .

Specifically, in some embodiments, as shown in FIGS. 6 and 7 , the return elastic unit 135 includes two second elastic members 1351 , and one end of the two second elastic members 1351 is in contact with the device shell. The other ends of the two second elastic members 1351 are connected to the two latch pins 132 respectively. The direction of the force provided by the second elastic member 1351 for the latch pin 132 is in the same direction as the corresponding latch pin 132 The insertion direction is opposite.

At the angle shown in FIGS. 6 and 7 , the direction shown by arrow F2 is the insertion direction of the latch 132 .

Optionally, in other embodiments, the return elastic unit 135 includes a tension spring, the tension spring is connected between the two latch pins 132, and the direction in which the latch 132 exits the socket 1221 is pulled by the tension spring. Orientation of pin 132.

In some embodiments, as shown in FIGS. 6 and 7 , each latch 132 includes a sliding portion 1321 , and the sliding portion 1321 is slidably engaged with the device housing 131 . Each of the plugs 132 includes an insertion portion 1322 connected to the sliding portion 1321 . The insertion portion 1322 is located outside the device housing 131 . The insertion portion 1322 is used to be inserted into the corresponding socket 1221 .

The device housing 131 is provided with a connecting protrusion 1311. The two sliding portions 1321 are respectively located on both sides of the connecting protrusion 1311 along the sliding direction of the latch 132 relative to the device housing 131. The second elastic members 1351 are connected between the connecting protrusions 1311 and the corresponding sliding parts 1321 .

The connecting protrusion 1311 and the second elastic member 1351 are located on one side of the trapezoidal member 133. Each of the plugs 132 also includes a contact portion 1323. The contact portion 1323 is connected to the sliding portion. 1321 is connected, and the contact portion 1323 is partially suspended outside the sliding portion 1321 and contacts the inclined surface.

Taking the exploded view shown in FIG. 6 as an example, the space in the device housing 131 on one side of the second elastic member 1351 and the connecting protrusion 1311 is used to place the trapezoidal member 133 . When the trapezoidal component 133 is placed in the device housing 131 , the abutting portion 1323 presses against the slope of the trapezoidal component 133 , and the trapezoidal component 133 provides an outward sliding force for the latch 132 through the abutting portion 1323 . In this way, the arrangement of components in the layout locking device 13 is more compact.

Further specifically, in some embodiments, as shown in FIGS. 3 to 5 , the fitting part 122 has a cylindrical structure, and the insertion direction corresponding to the insertion hole 1221 is perpendicular to the axial direction of the fitting part 122 , so The axial direction of the matching piece 122 is perpendicular to the motion plane defined by the two connecting rods 121 when they rotate.

As shown in FIG. 4 , when the cross-link lifting mechanism 12 is raised, the fitting piece 122 rotates to an angle at which the insertion hole 1221 is arranged along the insertion direction of the latch 132 , and the latch 132 is inserted into the insertion hole 1221 .

As shown in FIG. 5 , when the connecting rod 121 rotates relative to the state shown in FIG. 4 , the angle of the socket 1221 changes, the socket 1221 and the latch 132 are not directly opposite, and the latch 132 presses against the outer surface of the fitting 122 .

As shown in FIG. 3 , the fitting piece 122 slides relative to the seat plate 11 on the extension line of the latch 132 , and the fitting piece 122 can rotate while sliding. Although the overall height of the cross-link lifting mechanism 12 shown in Figures 4 and 5 has changed, the seat plate 11 will rise and fall accordingly, so the relative position of the latch 132 and the fitting piece 122 will not change in the longitudinal direction, and the fitting piece 122 will only The relative relationship between the socket 1221 and the plug 132 is changed by the rotation.

As shown in Figure 2, in one embodiment, guides 111 are provided on the seat plate 11 at positions corresponding to the cross-link lifting mechanism 12, and the guides 111 are provided with a first chute 1111. The guiding direction of the first chute 1111 is perpendicular to the lifting direction of the cross-link lifting mechanism 12. The fitting piece 122 is slidably fitted in the first chute 1111. The locking device 13 is installed on the On the guide member 111 , the matching member 122 is located on the extension line of the plug 132 .

Furthermore, as shown in FIGS. 1 to 3 , the foldable seat 10 includes two cross-link lifting mechanisms 12 , and the two cross-link lifting mechanisms 12 are arranged at intervals on the seat plate 11 . both ends;

Two locking devices 13 are provided on the seat plate, and the two locking devices 13 correspond to the two cross-link lifting mechanisms 12 in one-to-one correspondence.

As shown in FIGS. 1 to 3 , in some embodiments, the foldable seat 10 further includes a seat frame 14 , and the cross-link lifting mechanism 12 is assembled between the seat plate 11 and the seat frame 14 time, so that the seat plate 11 can be raised and lowered relative to the seat frame 14 .

Further, in some embodiments, as shown in FIGS. 1 to 3 , the foldable seat 10 further includes two sets of support units 15 , each set of support units 15 including two support legs 151 and connecting two connecting rods 152 supporting legs 151;

Both groups of the support units 15 are provided on the base frame 14. The four support legs 151 are located at the four corners of a rectangle. The two connecting rods 152 both pass through the base frame 14 and are Can rotate relative to the base frame 14;

The seat frame 14 is provided with a linkage mechanism, and the linkage mechanism is connected between the two connecting rods 152 so that the two connecting rods 152 can rotate in opposite directions at the same time.

During storage, one of the supporting units 15 is rotated relative to the base frame 14, and the other supporting unit 15 will rotate synchronously under the action of the linkage mechanism. For example, as shown in Figure 2, when the left support unit 15 rotates counterclockwise, the right support unit 15 will rotate clockwise simultaneously.

As specifically shown in Figure 3, in one embodiment, the linkage mechanism includes two groups of chain transmission mechanisms 16, each group of the chain transmission mechanisms 16 includes two sprockets 161 and is wound around the two sprockets 161. The chain 162 on the two connecting rods 152 is respectively connected to one of the sprockets 161 in the two groups of chain transmission mechanisms 16. The other two sprockets 161 in the two groups of chain transmission mechanisms 16 are additionally equipped with Transmission wheel 163, two of the transmission wheels 163 mesh.

When a connecting rod 152 rotates, the sprocket 161 connected to the connecting rod 152 rotates synchronously, and then under the action of the chain 162, the two sprockets 161 belonging to the same chain transmission mechanism 16 both rotate. Since the two transmission wheels 163 are meshed together, when one of the chain transmission mechanisms 16 operates, the other chain transmission mechanism 16 rotates synchronously, thereby realizing the folding of the two support units 15 together.

Further, as shown in FIGS. 2 and 3 , a second chute 141 may be provided on the seat frame 14 at a position where each link 121 acts. The guiding direction of the second chute 141 is consistent with that of the connecting rod 121 . The lifting direction of the cross-link lifting mechanism 12 is vertical. The end of the connecting rod 121 is provided with a sliding pin 123 , and the sliding pin 123 is slidably fitted in the second slide groove 141 .

When the cross-link lifting mechanism 12 lifts and lowers, the sliding pin 123 slides in the second slide groove 141, the matching piece 122 slides in the first slide groove 1111, and the distance between the seat frame 14 and the seat plate 11 changes.

As shown in Figure 8, in some embodiments of the present application, a combination cabinet 20 is provided, including a cabinet body 21 and the foldable seat 10 described in any one of the above. The foldable seat 10 is pulled out in a pull-out manner. Installed at the bottom of the cabinet 21.

The seat 10 can be unfolded for people to sit on, or folded and stored. It is easy to use and simple to store and does not take up space. When used in a combination cabinet 20, the seat 10 can be folded and stored under the cabinet 21 to prevent the seat 10 from being placed outside for a long time and tripping passers-by, thus improving the safety of use. Specifically, when it is necessary to unfold, an upward force is applied to the seat 11, and the two links 121 of the cross-link lifting mechanism 12 are unfolded accordingly. When the connecting rods 121 are unfolded to a certain extent along with the seat 11, the connecting rods The socket 1221 on the matching piece 122 at the top of 121 moves to a position aligned with the latch 132. At this time, the latch 132 is inserted into the socket 1221, thereby fixing the connecting rod 121 and the seat plate 11, so that the seat 10 is stably in the position. expanded state. When the seat 10 needs to be folded and stored, the latch 132 is taken out from the socket 1221 so that the lock between the connecting rod 121 and the seat 11 is released, so that the cross-link lifting mechanism 12 can be folded and the seat 11 can be lowered. The folded seat 10 can be pushed into the bottom of the cabinet 21 .

As shown in FIG. 8 , in some embodiments, the base frame 14 is installed on the bottom wall of the cabinet 21 in a pulling manner. In the folded state of the seat 10, the cross-link lifting mechanism 12 is lowered, and the seat panel 11 is arranged close to the seat frame 14. The seat 11 drops to a height below the cabinet 21 , and the seat 10 can be pushed under the cabinet 21 .

In the description of the present invention, it should be understood that the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", " "Back", "Left", "Right", "Vertical", "Horizontal", "Top", "Bottom", "Inside", "Outside", "Clockwise", "Counterclockwise", "Axis" The orientations or positional relationships indicated by "radial direction", "circumferential direction", etc. are based on the orientations or positional relationships shown in the drawings. They are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply the device or device referred to. Elements must have a specific orientation, be constructed and operate in a specific orientation and therefore are not to be construed as limitations of the invention.

In addition, the terms “first” and “second” are used for descriptive purposes only and cannot be understood as indicating or implying relative importance or implicitly indicating the quantity of indicated technical features. Therefore, features defined as "first" and "second" may explicitly or implicitly include at least one of these features. In the description of the present invention, "plurality" means at least two, such as two, three, etc., unless otherwise expressly and specifically limited.

In the present invention, unless otherwise clearly stated and limited, the terms "installation", "connection", "connection", "fixing" and other terms should be understood in a broad sense. For example, it can be a fixed connection or a detachable connection. , or integrated into one; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium; it can be an internal connection between two elements or an interactive relationship between two elements, unless otherwise specified restrictions. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

In the present invention, unless otherwise expressly stated and limited, a first feature being "on" or "below" a second feature may mean that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediate medium. touch. Furthermore, the terms "above", "above" and "above" the first feature is above the second feature may mean that the first feature is directly above or diagonally above the second feature, or simply means that the first feature is higher in level than the second feature. "Below", "below" and "beneath" the first feature to the second feature may mean that the first feature is directly below or diagonally below the second feature, or simply means that the first feature has a smaller horizontal height than the second feature.

It should be noted that when an element is referred to as being "mounted" or "disposed on" another element, it can be directly on the other element or intervening elements may also be present. When an element is said to be "connected" to another element, it can be directly connected to the other element or there may also be intervening elements present. The terms "vertical", "horizontal", "upper", "lower", "left", "right" and similar expressions used herein are for illustrative purposes only and do not represent the only implementation manner.

The technical features of the above-described embodiments can be combined in any way. To simplify the description, not all possible combinations of the technical features in the above-described embodiments are described. However, as long as there is no contradiction in the combination of these technical features, All should be considered to be within the scope of this manual.

The above-mentioned embodiments only express several implementation modes of the present invention, and their descriptions are relatively specific and detailed, but they should not be construed as limiting the scope of the invention. It should be noted that, for those of ordinary skill in the art, several modifications and improvements can be made without departing from the concept of the present invention, and these all belong to the protection scope of the present invention. Therefore, the scope of protection of the patent of the present invention should be determined by the appended claims.

Claims (13)

1. A foldable seat, comprising:

the seat is provided with a cross connecting rod lifting mechanism under the seat, the seat is in an unfolding state when the cross connecting rod lifting mechanism is lifted, and the seat is in a folding state when the cross connecting rod lifting mechanism is lowered;

the seat is characterized in that the seat is also provided with a locking device, the locking device comprises a bolt which can slide relative to the seat, the cross connecting rod lifting mechanism comprises two cross hinged connecting rods, the connecting rods are provided with matching pieces, the matching pieces are provided with jacks, when the seat is in an unfolding state, the jacks are aligned with the bolts, and the bolts can be inserted into the jacks.

2. The foldable seat according to claim 1, wherein the two connecting rods of the cross connecting rod lifting mechanism are provided with the matching pieces, each matching piece is provided with the insertion hole, and each matching piece is arranged at the end part of the corresponding connecting rod;

the locking device comprises two bolts, and the bolts are in one-to-one correspondence with the jacks.

3. The foldable seat according to claim 2, wherein the locking device further comprises a trapezoid and a first elastic member, the first elastic member is used for providing a force to the trapezoid, the direction of the force provided by the first elastic member to the trapezoid is consistent with the direction from the lower bottom surface to the upper bottom surface of the trapezoid, and the two bolts are respectively in transmission fit with the two inclined surfaces of the trapezoid, so that the trapezoid can provide the force for the two bolts to be respectively inserted into corresponding insertion holes at the same time.

4. A foldable seat according to claim 3, wherein the insertion directions of the two pins into the corresponding insertion holes are opposite, the inclined surfaces of the trapezoid are oriented to intersect with the insertion directions of the corresponding pins, and the two pins are respectively pressed against the two inclined surfaces of the trapezoid.

5. The foldable seat of claim 4, wherein the locking device further comprises a device housing, the device housing being coupled to the seat, the trapezoid being movably mounted in the device housing such that the trapezoid is slidable back and forth relative to the device housing in the direction of the force of the first elastic member, the first elastic member acting between the device housing and the trapezoid, the latch being slidably mounted on the device housing.

6. The foldable seating apparatus of claim 5, wherein the locking device further comprises a return elastic unit, the return elastic unit comprising two action portions, the two action portions being respectively connected to or abutting against the two pins for providing a force to the corresponding pins in a direction of exiting the insertion holes.

7. The foldable seat according to claim 6, wherein the return elastic unit includes two second elastic members, one ends of the two second elastic members are connected to the device housing, the other ends of the two second elastic members are connected to the two pins, respectively, and the direction of the acting force provided by the second elastic members to the pins is opposite to the direction of insertion of the corresponding pins.

8. The foldable seat according to claim 7, wherein each of the pins includes a sliding portion and an insertion portion connected to each other, the sliding portion being slidably fitted with the device housing, the insertion portion being located outside the device housing, the insertion portion being for insertion into a corresponding insertion hole, a connection protrusion being provided in the device housing, two sliding portions being located on both sides of the connection protrusion in a sliding direction of the pin with respect to the device housing, respectively, each of the second elastic members being connected between the connection protrusion and the corresponding sliding portion;

the connecting protrusion and the second elastic piece are both positioned on one side of the trapezoid piece, each bolt further comprises an abutting part, the abutting parts are connected with the sliding parts, and the abutting parts are partially suspended outside the sliding parts and abutted to the inclined planes.

9. A foldable seat according to any one of claims 1 to 8, wherein the mating member is of cylindrical configuration, the insertion direction of the socket is perpendicular to the axial direction of the mating member, and the axial direction of the mating member is perpendicular to the plane of movement defined by the rotation of the two links.

10. A foldable seat according to any one of claims 1 to 8, further comprising two sets of support units, each set of support units comprising two support legs and a connecting rod connecting the two support legs;

the foldable seat also comprises a seat frame, the cross connecting rod lifting mechanism is assembled between the seat plate and the seat frame, so that the seat plate can lift relative to the seat frame, two groups of supporting units are arranged on the seat frame, four supporting leg parts are arranged at four corners of a rectangle, and two connecting rods penetrate through the seat frame and can rotate relative to the seat frame;

the seat frame is provided with a linkage mechanism which is connected between the two connecting rods so that the two connecting rods can rotate in opposite directions at the same time; .

11. The foldable seat according to claim 10, wherein the linkage mechanism comprises two sets of chain transmission mechanisms, each set of chain transmission mechanism comprises two chain wheels and a chain wound on the two chain wheels, the two connecting rods are respectively connected with one chain wheel in the two sets of chain transmission mechanisms, driving wheels are additionally arranged on the other two chain wheels in the two sets of chain transmission mechanisms, and the two driving wheels are meshed.

12. The foldable seat according to claim 10, wherein guide members are arranged at positions on the seat plate corresponding to the cross connecting rod lifting mechanisms, the guide members are provided with first sliding grooves, the guide directions of the first sliding grooves are perpendicular to the lifting directions of the cross connecting rod lifting mechanisms, the matching members are in sliding fit in the first sliding grooves, the locking devices are arranged on the guide members, and the matching members are positioned on extension lines of the bolts;

the seat frame is provided with a first sliding groove at the action position of each connecting rod, the guiding direction of the first sliding groove is vertical to the lifting direction of the cross connecting rod lifting mechanism, the end part of each connecting rod is provided with a sliding pin, and the sliding pins are in sliding fit in the first sliding grooves;

the foldable seat comprises two crossed connecting rod lifting mechanisms which are arranged at two ends of the seat at intervals;

the seat board is provided with two locking devices, and the two locking devices correspond to the two crossed connecting rod lifting mechanisms one by one.

13. A combination sideboard comprising a sideboard and a foldable seat according to any one of claims 1 to 12, said foldable seat being mounted in a pull-out manner on the bottom of said sideboard.