CN106510284A - Folding bed - Google Patents

Abstract

The invention relates to a folding bed. The utility model relates to a folding bed, the bed frame of which comprises an upper frame, a bed leg and a bottom support frame. The upper frame includes a plurality of frame edges, and angular joints are arranged between adjacent frame edges, and the frame edges include a first frame bar, a second frame bar and edge joints, and the first frame bar The two ends of the second frame rod are respectively rotatably connected with the corner joint and the side joint, and the two ends of the second surrounding frame rod are respectively rotatably connected with the other corner joint and the side joint. The side joints can also lock the first frame rod and the second frame rod when they are relatively expanded. The bottom support frame includes a chassis seat and a bottom support rod. An unlocking piece is movably arranged on the chassis seat, and each side joint passes through The traction cable is connected with the unlocking part, and the unlocking part is pulled to move the unlocking part on the chassis base, so that multiple side joints can be simultaneously unlocked through the traction cable. The invention can realize the folding of the bed frame of the folding bed. The folding operation is simple, saving time and effort.

Description

a folding bed

technical field

The invention relates to a folding bed.

Background technique

At present, in folding beds, the bed frame is mostly installed through a combination of multiple rods. When in use, the rods are unfolded, and the rods deployed by multiple locking mechanisms are locked with each other to form an unfolded whole bed frame, which needs to be transported or folded. When the bed frame is unlocked, the rods are folded closer to each other. In the existing folding bed structure, either the locking mechanism and the unlocking mechanism are simple in structure, but the steps of unfolding and locking and folding and unlocking are many, and the efficiency is low. Either the structure of the folding bed is complex, which can realize fast unfolding and locking and folding and unlocking, but the folded folding bed is relatively large in volume due to the complex structure and cannot be folded completely.

Moreover, in the existing folding bed structure, either the locking mechanisms are not related, and each locking mechanism needs to be operated separately to complete the locking/unlocking between adjacent rods. Either the locking mechanisms and the unlocking mechanisms are related to each other through a complex mechanism, and then the synchronous unlocking of all the locking mechanisms is realized. However, due to the structure of the bed frame, the distance between the locking mechanisms is relatively long, and it takes more time to realize the synchronous unlocking of the joints on each side. It can be realized by traction by an associated mechanism with a longer stroke. The unlocking force required by the locking mechanism on the existing bed frame is relatively large, and the required unlocking force will be further increased by pulling the associated mechanism. This makes the required unlocking force too large when the side joints of the existing synchronously unlocked bed frame are unlocked and folded, and the unlocking is sluggish and unsmooth.

Contents of the invention

The technical problem to be solved by the present invention is to provide a folding bed with light structure, simple folding and unlocking process and small unlocking force.

In order to solve the above-mentioned technical problems, a technical solution adopted by the present invention is: a folding bed, including a bed frame having a folded state and an unfolded state. The bed frame includes an upper surrounding frame, a plurality of bed legs installed under the upper surrounding frame and a bottom brace supported between the plurality of bed legs, the upper surrounding frame includes a plurality of surrounding frame edges, adjacent Corner joints are arranged between the sides of the surrounding frame, and the multiple surrounding frame sides are connected end to end through the corner joints to form a closed ring-shaped surrounding frame, and the two ends of the surrounding frame sides are respectively rotated with the corresponding corner joints connected, the edge of the frame includes a first frame rod, a second frame rod and a side joint connecting the first frame rod and the second frame rod, and one end of the first frame rod rotates with a corner joint connected, the other end is rotationally connected with the side joint, the end of the second frame rod away from the first frame rod is rotationally connected with the other corner joint, and the end close to the first frame rod is rotationally connected with the side joint, and the side The joint can also lock the first frame rod and the second frame rod when they are relatively deployed. The bottom brace includes a chassis seat and a plurality of bottom braces that are rotatably connected to the chassis seat, and each bottom brace is far away from One end of the chassis base is rotatably connected to the corresponding bed leg, and an unlocking piece is movably arranged on the chassis base, and each side joint is connected with the unlocking piece through a traction cable, and the unlocking piece is pulled to move the unlocking piece on the chassis base to unlock The movement of the parts can be unlocked synchronously by pulling multiple side joints through the traction cable.

Preferably, the upper surrounding frame includes four surrounding frame sides, and the four surrounding frame side parts connect end to end through corner joints to form a rectangular ring-shaped surrounding frame. When the bed frame is in the unfolded state, the first surrounding frame The rod and the second frame rod are respectively deployed between the corner joint and the side joint, and the first frame rod and the second frame rod extend along the same straight line; when the bed frame is folded, the side joint is unlocked, and the The relative corner joints of the first frame rod and the second frame rod are turned downwards, and the opposite frame edges are moved closer to each other.

Specifically, the side joint includes a joint seat, a first connecting head, a second connecting head, a swing member and a pressure spring, and the first connecting head is connected to one of the first frame rod and the second frame rod Fixedly connected, the second connecting head is fixedly connected to the other rod in the first frame rod and the second frame rod, and the first frame rod and the second frame rod pass through the first connecting head and the second frame rod The two connectors are respectively rotatably connected to the joint seat, the swing member is rotatably connected to the first connector, the compression spring is pressed against and installed between the swing member and the first connector, the swing member is fixedly connected to the traction cable, The side joint has a locked state and an unlocked state. When the side joint is in the locked state, the pressure spring pushes the swinging member to rotate against the second connecting head, and the first connecting head and the second connecting head are swung at the same time. The joint piece and the compression spring are locked on the joint seat; when the side joint is in the unlocked state, the swinging piece rotates to let go of the second connecting head, and the first connecting head and the second connecting head can rotate on the joint seat respectively ; Pulling the traction cable can drive the swinging member to rotate to unlock the side joint.

Further, the swinging member has a raised portion, and the front part of the second connector has a notch matching the raised portion. When the side joint is in a locked state, the compression spring is against the swinging member, The protruding part abuts into the notch; when the side joint is in an unlocked state, the protruding part is separated from the notch, and the swing member rotates to let the second connecting head escape.

Further, the joint seat includes two parallel mounting plates and a connecting plate for connecting the two mounting plates, the connecting plate is fixedly arranged on the upper part of the two mounting plates, the first connecting head and the second The connecting heads protrude into the space between the two mounting plates respectively from the right and left parts of the joint seat, and the first connecting head and the second connecting head are respectively riveted on the two mounting plates by rivets and formed respectively The first rotating pair and the second rotating pair, the swinging member is located in the space between the two mounting plates, the lower front part of the first connecting head has a mounting part for installing the swinging member, and the swinging member and The installation part is riveted by rivets to form the third rotating pair, the front part of the first connecting head is located on the left side of the first rotating pair, the front part of the second connecting head is located on the right side of the second rotating pair, and the connection The plate block is above the first connecting head and the second connecting head and can limit the upward rotation of the front parts of the first connecting head and the second connecting head.

Further, the notch is open toward the lower right of the second connector, and when the raised portion is pushed into the notch, the swinging member and the compression spring can limit the front parts of the first connector and the second connector to Turn down.

Preferably, a guide groove is opened on the mounting plate, and the raised portion of the swing member extends into the guide groove, and the raised portion can only move along the extending track of the guide groove, and the raised portion and the guide The groove fit can control the movement trajectory of the pendulum.

Specifically, the unlocking member has a first position and a second position on the chassis seat. When the unlocking member is in the first position, a loose state is maintained between the unlocking member and the traction cable, and the side joint can connect the first The frame rod and the second frame rod are locked; when the unlocking part is in the second position, the unlocking part pulls the traction cable to unlock multiple side joints synchronously.

Preferably, an unlocking wrench and a connecting piece are also installed on the chassis base, the unlocking piece is slidably mounted on the chassis base, the unlocking wrench is rotatably mounted on the chassis base, and the connecting piece is respectively connected to the unlocking The unlocking wrench is rotationally connected with the unlocking wrench. The unlocking wrench, the connecting piece, the unlocking piece and the chassis base constitute a crank slider mechanism. Turning the unlocking wrench back and forth on the chassis base can make the unlocking piece move back and forth between the first position and the second position. Swipe to switch positions.

Further, the upper part of the unlocking wrench is formed with a wrench part for human hands to exert force on, and the lower part of the unlocking wrench has a connecting part that is rotatably connected with the connecting piece, the connecting part is hook-shaped, and the connecting part has a one-way opening The hook groove, the connecting piece is embedded in the hook groove and connected with the unlocking wrench for rotation.

Specifically, the lower part of the chassis seat is provided with a sliding groove extending downward, and the unlocking member is installed in the sliding groove, and the wrench part of the unlocking wrench is turned back and forth to make the unlocking member slide up and down in the sliding groove.

Specifically, the connecting piece is in the shape of a crank, and the connecting piece includes a left trunnion, a right trunnion, a middle shaft part, and a connecting shaft connecting the left trunnion and the middle shaft part, and the right trunnion and the middle shaft part. The axis lines of the left trunnion and the right trunnion are collinear and located above the central axis part, the central axis part is parallel to the left trunnion and the right trunnion, and the left trunnion and the right trunnion are respectively embedded in the In the hook groove of the unlocking wrench, the central shaft part is rotatably connected with the unlocking piece.

Further, the bed legs are fixedly installed under the corner joints, the bed legs extend in the vertical direction, the lower part of the bed legs is fixedly provided with bottom joints, and the bottom bracket is located between the plurality of bed legs In between, the bottom brace is rotatably connected with the bed legs through the bottom joint. When the bottom brace is in the unfolded state, the bottom brace is flattened between the chassis seat and the bottom joint; when the bed frame is folded , the chassis seat is lifted upwards, and the chassis seat can drive the bottom support rod to rotate upward relative to the bottom joint.

Specifically, the first frame rod, the second frame rod, the bed leg and the bottom support rod are all hollow pipes, and the traction cable is passed through the first frame rod, the second frame rod, the bed leg And in the bottom brace and connect the side joint and the unlocking piece.

Preferably, some of the legs of the bed frame are provided with wheels, and the bed frame is lifted to lift the legs without wheels off the ground and push the folding bed, and the folding bed can move on the ground driven by the wheels.

Specifically, the first surrounding frame rod, the second surrounding frame rod, the bed leg and the bottom support rod are all hollow pipes, and the traction cable passes through the second surrounding frame rod, corner joints, bed legs and bottom support in sequence Rod, and the two ends of the traction rope are respectively connected with the side joint and the unlocking piece.

The orientation words such as front, back, left, right, up, and down mentioned above are defined in the orientation of the folding bed when it is in normal use (illustrated).

The scope of the present invention is not limited to technical solutions formed by a specific combination of the above technical features, but also covers other technical solutions formed by any combination of the above technical features or equivalent features. For example, a technical solution formed by replacing the above-mentioned features with (but not limited to) technical features with similar functions disclosed in this application.

Due to the application of the above technical solution, the present invention has the following advantages compared with the prior art: the unlocking part is connected to multiple side joints through the traction cable, the synchronous unlocking of multiple side joints is realized by pulling the unlocking part, and the folding bed is realized at the same time. The bed frame can be folded in one lift. The first connector and the second connector are locked at the same time by using the swing piece and the compression spring. Pulling the traction cable can easily separate the swing piece from the second connector to unlock the side joint. The structure is simple and ingenious, the unlocking force is small, and the unlocking is smooth. , low production cost. A crank slider mechanism composed of an unlocking wrench, a connecting piece, an unlocking piece and a chassis base is adopted, and the unlocking wrench is operated to switch the position of the unlocking piece back and forth to realize synchronous unlocking of multiple side joints. The folding operation is simple, saving time and effort. In the folded upper frame, the opposite frame edges are close together, the first frame rod and the second frame rod are folded in half, the bed legs and the bottom support rods are all close together, and the folded folding bed is small in size and convenient to use. Transport carry.

Description of drawings

Fig. 1 is a schematic diagram of the three-dimensional structure of the folding bed of the present invention when it is in an unfolded state;

Fig. 2 is a three-dimensional structural schematic view of the folding bed of the present invention when it is in a folded state;

Fig. 3 is the front view of side joint;

Fig. 4 is the top view of side joint;

Fig. 5 is the left view of side joint;

Fig. 6 is the sectional view of A-A in Fig. 5;

Figure 7 is an exploded view of a side joint;

Fig. 8 is a front view of the chassis seat structure when the unlocking member is in the first position;

Fig. 9 is a left view of the chassis seat structure when the unlocking member is in the first position;

Fig. 10 is a top view of the chassis seat structure when the unlocking member is in the first position;

Fig. 11 is the sectional view of B-B in Fig. 8;

Fig. 12 is a front view of the chassis seat structure when the unlocking member is in the second position;

Fig. 13 is a left view of the chassis seat structure when the unlocking member is in the second position;

Fig. 14 is a top view of the chassis seat structure when the unlocking member is in the second position;

Figure 15 is a sectional view of C-C in Figure 12;

Figure 16 is an exploded view of the chassis seat structure;

Among them: 1. Upper frame; 2. Bed leg; 3. Bottom support; 4. Edge of frame; 5. Corner joint; 6. First frame rod; 7. Second frame rod; 8. Bottom Strut; 9, traction cable; 10, bottom joint; 11, wheel; 100, side joint; 101, joint seat; 102, first connector; 103, second connector; 104, swinging piece; 105, compression spring ; 106, raised portion; 107, gap; 108, mounting plate; 109, connecting plate; 110, mounting portion; 111, first rotating pair; 112, second rotating pair; 113, third rotating pair; Slot; 115, limit piece; 116, installation groove; 200, chassis base; 201, unlocking piece; 202, unlocking wrench; 203, connector; 204, wrench part; 205, connecting part; 206, hook groove; Chute; 208, left trunnion; 209, right trunnion; 210, middle shaft; 211, connecting shaft; 212, tubular part; 213, installation shaft; 214, installation groove; 215, waist hole; 216, shaft hole.

detailed description

As shown in Fig. 1 and Fig. 2, a folding bed according to the present invention includes a bed frame having a folded state and an unfolded state. The bed frame includes an upper frame 1 , a plurality of bed legs 2 installed under the upper frame 1 , and a bottom brace 3 supported between the plurality of bed legs 2 .

The upper frame 1 includes a plurality of frame edges 4, and corner joints 5 are arranged between adjacent frame edges 4, and the plurality of frame edges 4 are connected end to end through corner joints 5 to form a closed Circular frame. In this embodiment, the upper surrounding frame 1 includes four surrounding frame side parts 4, and the four surrounding frame side parts 4 are connected end-to-end through four corner joints 5 to form a rectangular ring-shaped surrounding frame. The two ends of the surrounding frame edge 4 are respectively connected to the corresponding corner joints 5 by pivoting. The frame edge 4 includes a first frame rod 6 , a second frame rod 7 and an edge joint 100 connecting the first frame rod 6 and the second frame rod 7 . One end of the first frame rod 6 is rotatably connected to a corner joint 5 , and the other end is rotatably connected to a side joint 100 , and the end of the second frame rod 7 away from the first frame rod 6 is rotatably connected to another corner joint 5 Connection, one end close to the first frame rod 6 is rotationally connected with the side joint 100 . The side joint 100 can also lock the first frame rod 6 and the second frame rod 7 when they are relatively deployed.

In this embodiment, the bed legs 2 have four corresponding corner joints 5 . The bed legs 2 are fixedly installed below the corner joints 5 , the bed legs 2 extend vertically, and the bottom joints 10 are fixedly arranged on the bottom of the bed legs 2 . Wheels 11 are provided at the bottom of some of the bed legs 2 in the bed frame, specifically, wheels 11 are provided at the bottom of two adjacent bed legs 2 among the four bed legs 2 . Lift the bed frame to make the bed legs 2 without wheels 11 off the ground and push the folding bed, and the folding bed can move on the ground driven by the wheels 11 .

The bottom bracket 3 is located between the four bed legs 2 . The bottom support frame 3 includes a chassis base 200 and four bottom support rods 8 rotatably connected with the chassis base 200 . One end of each bottom brace 8 away from the chassis base 200 is rotatably connected to the corresponding bed leg 2 through the bottom joint 10 . An unlocking member 201 is movably disposed on the chassis base 200 . Each side joint 100 is connected to the unlocking part 201 through the traction cable 9, and the unlocking part 201 is pulled to move the unlocking part 201 on the chassis base 200, and the movement of the unlocking part 201 can affect multiple side joints 100 to unlock synchronously through the traction cable 9.

The first surrounding frame bar 6, the second surrounding frame bar 7, the bed leg 2 and the bottom support bar 8 are all hollow pipes, and the traction cable 9 passes through the second surrounding frame bar 7, the corner joint 5, and the bed in sequence. Inside the leg 2 and the bottom brace 8, and the two ends of the traction cable 9 are respectively connected with the side joint 100 and the unlocking member 201

As shown in FIGS. 3 to 7 , the side joint 100 includes a joint seat 101 , a first connecting head 102 , a second connecting head 103 , a swing member 104 and a compression spring 105 . The first connector 102 is fixedly connected to one of the first frame rod 6 and the second frame rod 7 , and the second connector 103 is connected to the first frame rod 6 and the second frame rod 7 The other member in is fixedly connected.

In this embodiment, the joint seat 101 is a folded plate. Specifically, the joint base 101 includes two parallel mounting plates 108 and a connecting plate 109 for connecting the two mounting plates 108 , and the connecting plate 109 is fixedly arranged on the upper parts of the two mounting plates 108 .

As shown in FIG. 6 , the first connecting head 102 and the second connecting head 103 protrude into the space between the two mounting plates 108 from the right part and the left part of the joint base 101 respectively. The first connecting head 102 is riveted on the two mounting plates 108 by rivets to form a first rotating pair 111 . The second connecting head 103 is riveted on the two mounting plates 108 by rivets to form a second rotating pair 112 . The swinging member 104 is located in the space between the two mounting plates 108 . The lower front part of the first connecting head 102 has a mounting part 110 for mounting the swinging part 104 , and the swinging part 104 is riveted with the mounting part 110 to form a third rotating pair 113 . The third rotating pair 113 is located below the first rotating pair 111 and the second rotating pair 112 .

The front part of the first connecting head 102 is located on the left side of the first rotating pair 111, the front part of the second connecting head 103 is located on the right side of the second rotating pair 112, and the connecting plate 109 blocks the first connecting The top of the head 102 and the second connecting head 103 can limit the upward rotation of the front parts of the first connecting head 102 and the second connecting head 103 . The compression spring 105 is pressed against and installed between the swing member 104 and the front of the first connecting head 102 .

The swing member 104 has a protruding portion 106 . In this embodiment, the raised portion 106 is formed by riveting a rivet on the swing member. The front portion of the second connector 103 has a notch 107 matching with the protrusion 106 . The notch 107 opens toward the bottom right of the second connector 103 .

A mounting slot 116 is defined on the top of the first connector 102, and the mounting slot 116 extends along the left and right directions. The traction cable 9 is laid along the guide of the installation groove 116 and the end of the traction cable 9 is fixedly connected with the swing member 104 .

The side joint 100 has a locked state and an unlocked state. When the side joint 100 is in the locked state, the compression spring 105 pushes the oscillating member 104 to rotate, and the protrusion 106 abuts into the notch 107, and the oscillating member 104 and the compression spring 105 can limit the first connecting head 102 and the front part of the second connecting head 103 are rotated downward, that is, the first connecting head 102 and the second connecting head 103 are locked on the joint base 101 by the swing member 104 and the compression spring 105 at the same time and cannot rotate relative to the joint base 101 .

When the side joint 100 is in the unlocked state, the swinging member 104 rotates, the protrusion 106 is separated from the notch 107, and the swinging member 104 rotates to let the second connecting head 103 go. At this time, the first The connecting head 102 and the second connecting head 103 can rotate on the joint seat 101 respectively, specifically, the front part of the first connecting head 102 can rotate downward relative to the first rotating pair 111, and the second connecting head 103 The front part of the can be rotated downward relative to the second rotating pair 112 . Pulling the traction cable 9 can drive the swing member 104 to rotate to unlock the side joint 100 .

A limiting member 115 is installed between the two mounting plates 108 , and the limiting member 115 is located on the left side of the mounting portion 110 of the first connector 102 . In this embodiment, the limiting member 115 is formed by piercing rivets on the two mounting plates 108 . When the side joint 100 is in the locked state, the limiting member 115 is in contact with the mounting portion 110 of the first connecting head 102 . In this way, the limiting member 115 can limit the movement of the first connecting head 102 and prevent the first connecting head 102 from turning offside.

In this implementation, the mounting plate 108 is also provided with a guide groove 114 . The protruding portion 106 of the swing member 104 protrudes into the guide groove 114 so that the protruding portion 106 can only move along the extending track of the guide groove 114 . In this way, the cooperation between the protrusion 106 and the guide groove 114 can control the movement track of the swing member 104 . Ensure accurate matching between the swinging member 104 and the second connecting head 103 .

As shown in FIGS. 8 to 16 , an unlocking wrench 202 and a connecting piece 203 are also installed on the chassis base 200 . In this embodiment, the unlocking member 201 is slidably mounted on the chassis seat 200 . The unlocking wrench 202 is rotatably installed on the chassis base 200 . The connecting piece 203 is rotatably connected with the unlocking piece 201 and the unlocking wrench 202 respectively. The unlocking wrench 202 , the connecting piece 203 , the unlocking piece 201 and the chassis base 200 form a slider crank mechanism.

Specifically, the upper part of the chassis base 200 is provided with a mounting slot 214 , and the lower part of the chassis base 200 is provided with a sliding slot 207 extending downward, and the sliding slot 207 communicates with the installation slot 214 . The lower part of the chassis base 200 shown has a downwardly extending tubular portion 212 , the sliding groove 207 is formed inside the tubular portion 212 , the upper portion of the sliding groove 207 communicates with the installation groove 214 , and the lower portion forms an opening at the lower end of the tubular portion 212 .

The unlocking wrench 202 is rotatably arranged on the chassis seat 200 through the installation shaft 213 . Specifically, the upper part of the unlocking wrench 202 is formed with a wrench part 204 for human hands to exert force. The through hole is used to operate the unlocking wrench 202. A shaft hole 216 matched with the installation shaft 213 is defined at the middle and lower part of the unlocking wrench 202 . The installation shaft 213 is passed through the installation groove 214 of the chassis base 200 and the shaft hole 216 of the unlocking wrench 202 , and the unlocking wrench 202 can rotate around the installation shaft 213 . The lower part of the unlocking wrench 202 has a connecting portion 205 that is rotatably connected with the connecting member 203 , the connecting portion 205 is hook-shaped, and the connecting portion 205 has a hook groove 206 that opens in one direction. The connecting portion 205 of the unlocking wrench 202 is located in the installation groove 214 , and the wrench portion 204 of the unlocking wrench 202 is exposed outside the installation groove 214 .

The connecting piece 203 is in the shape of a crank. Specifically, the connecting member 203 includes a left trunnion 208 , a right trunnion 209 , a central axis portion 210 , and a connecting shaft 211 connecting the left trunnion 208 and the central axis portion 210 , and the right trunnion 209 and the central axis portion 210 . The axis lines of the left trunnion 208 and the right trunnion 209 are collinear and located above the central axis portion 210 , and the central axis portion 210 is parallel to the left trunnion 208 and the right trunnion 209 . The left trunnions 208 and the right trunnions 209 are respectively embedded in the hook grooves 206 of the unlocking wrench 202 so that the connecting piece 203 is rotationally connected with the unlocking wrench 202 . A waist-shaped hole 215 is opened on the unlocking member 201 , and the central shaft portion 210 passes through the waist-shaped hole 215 and is connected to the unlocking member 201 in rotation.

The unlocking member 201 has a first position and a second position on the chassis base 200 .

As shown in FIGS. 8 to 11 , the unlocking member 201 is at a first position. At this time, the wrench part 204 of the unlocking wrench 202 fits on the upper part of the chassis seat 200, the unlocking part 201 slides upwards in the chute 207, and the waist-shaped hole 215 on the unlocking part 201 rises to the upper part of the chute 207 . A loose state is maintained between the unlocking member 201 and the pulling rope 9 . At this time, the locking mechanism 200 can lock the interconnected rods.

As shown in FIGS. 12 to 15 , the unlocking member 201 is in the second position. At this time, the wrench portion 204 of the unlocking wrench 202 is tilted upwards, the unlocking member 201 slides downward in the sliding groove 207 , and the waist-shaped hole 215 on the unlocking member 201 descends to the middle and lower part of the sliding groove 207 . The unlocking member 201 pulls the pulling cable 9 to unlock the plurality of locking mechanisms 200 synchronously.

Turn the wrench part 204 of the unlocking wrench 202 back and forth on the chassis base 200, and under the action of the slider crank mechanism, the unlocking part 201 slides up and down in the chute 207, that is, the unlocking part 201 moves back and forth between the first position and the second position Switch locations.

When the bed frame is in the unfolded state, the first surrounding frame rod 6 and the second surrounding frame rod 7 are deployed between the corner joint 5 and the side joint 100 respectively, and the first surrounding frame rod 6 and the second surrounding frame rod 7 extend along the same straight line. The side joint 100 is in a locked state, that is, the side joint 100 locks the first frame rod 6 and the second frame rod 7 on the joint seat 101 . At this time, the first connecting head 102 rotates to a direction extending almost in the horizontal direction, and the installation portion 110 abuts against the limiting member 115 . The second connecting head 103 rotates to a direction extending almost in the horizontal direction. The compression spring 105 resists the swing member 104 and rotates in a direction close to the second connecting head 103. The protrusion 106 is inserted into the notch 107. The swing member 104 is against the second connecting head 103 , and at this moment, both the first connecting head 102 and the second connecting head 103 are locked and cannot be rotated. In addition, the bottom brace 8 is flattened between the chassis seat 200 and the bottom joint 10 . The unlocking member 201 is in the first position.

When the bed frame is folded, the unlocking wrench 202 on the chassis base 200 is pulled up, and the unlocking part 201 moves down to the second position under the action of the slider crank mechanism, and the unlocking part 201 pulls the traction cable 9, and the traction cable 9 drives the swing The member 104 rotates to the right, the swing member 104 is pressed against the compression spring 105, the compression spring 105 contracts, and the protrusion 106 slides out from the notch 107 and separates from the notch 107. The side joint 100 is unlocked, the first surrounding frame rod 6 and the second surrounding frame rod 7 are turned downward relative to the corner joint 5, and the opposite surrounding frame sides 4 are moved closer to each other. At the same time, the chassis seat 200 can drive the bottom support rod 8 to rotate upward relative to the bottom joint 10 .

In the present invention, the protruding portion 106 of the swing member 104 cooperates and locks with the notch 107 of the second connecting head 103 . Therefore, the unlocking force required for unlocking the joint mechanism 100 is very small, the unlocking is smooth, and the cost is low. Using the crank slider mechanism composed of the unlocking wrench 202 , the connecting piece 203 , the unlocking piece 201 and the chassis base 200 , the unlocking wrench 202 is operated to switch the position of the unlocking piece 3 back and forth to realize simultaneous unlocking of multiple side joints 100 . The folding operation is simple, and the bed frame of the folding bed can be folded with one hand, saving time and effort. The relative surrounding frame sides 4 in the folded upper surrounding frame 1 are close together, the first surrounding frame rod 6 and the second surrounding frame rod 7 have been folded in half, the bed legs 8 and the bottom support rods 8 are all moved closer together, and the folded The folding bed is small in size and easy to transport and carry.

As mentioned above, we have fully described according to the purpose of the present invention, but the present invention is not limited to the above-mentioned embodiments and implementation methods. Practitioners in the relevant technical fields may make various changes and implementations within the scope permitted by the technical ideas of the present invention.

Claims (16)

1. a kind of folding bed, including the bedstead with folded state and deployed condition, it is characterised in that：The bedstead includes upper measurement Frame（1）, installed in upper enclosure frame（1）Multiple footposts of lower section（2）Be supported on multiple footposts（2）Between bottom bracing frame（3）, it is described Upper enclosure frame（1）Including multiple peripheral frame edge（4）, adjacent peripheral frame edge（4）Between be provided with angle joint（5）, described is multiple Peripheral frame edge（4）By angle joint（5）The end to end peripheral frame for forming closed circular, the peripheral frame edge（4）Two ends difference With corresponding angle joint（5）Rotate connection, the peripheral frame edge（4）Including the first peripheral frame bar（6）, the second peripheral frame bar（7）And even Connect the first peripheral frame bar（6）, the second peripheral frame bar（7）Frontier juncture section（100）, the first peripheral frame bar（6）One end and one jiao of joint （5）Connection is rotated, the other end is saved with frontier juncture（100）Rotate connection, the second peripheral frame bar（7）Away from the first peripheral frame bar（6） One end and another angle joint（5）Connection is rotated, near the first peripheral frame bar（6）One end and frontier juncture save（100）Rotate connection, institute State frontier juncture section（100）Can also be in the first peripheral frame bar（6）With the second peripheral frame bar（7）Both are locked during relative expansion, the bottom Support（3）Including subbase（200）With multiple and subbase（200）Rotate the bottom supporting rod of connection（8）, each bottom supporting rod（8）Far From subbase（200）One end and corresponding footpost（2）Rotate connection, the subbase（200）On be actively provided with unblock Part（201）, each frontier juncture section（100）Pass through hauling rope（9）With unlock piece（201）It is connected, lifts unlock piece（201）Make unblock Part（201）In subbase（200）Upper motion, unlock piece（201）Motion can pass through hauling rope（9）Affect multiple frontier juncture sections （100）Synchronizing unlocking.

2. a kind of folding bed according to claim 1, it is characterised in that：The upper enclosure frame（1）Including four peripheral frame edge （4）, four peripheral frame edge（4）By angle joint（5）The end to end peripheral frame for forming rectangular ring, when bedstead is in deployed condition When, the first peripheral frame bar（6）With the second peripheral frame bar（7）Angle joint is deployed in respectively（5）Save with frontier juncture（100）Between, it is described First peripheral frame bar（6）With the second peripheral frame bar（7）Along same straight-line extension；When bedstead is folded, the frontier juncture section（100）Unblock, The first peripheral frame bar（6）With the second peripheral frame bar（7）Relative angle joint（5）Downwardly turn over, relative peripheral frame edge（4）Mutually lean on Hold together.

3. a kind of folding bed according to claim 1, it is characterised in that：The frontier juncture section（100）Including socket joint （101）, the first union joint（102）, the second union joint（103）, swing component（104）And stage clip（105）, first union joint （102）With the first peripheral frame bar（6）With the second peripheral frame bar（7）In a rod member be fixedly connected, second union joint（103）With First peripheral frame bar（6）With the second peripheral frame bar（7）In another rod member be fixedly connected, the first peripheral frame bar（6）With the second peripheral frame Bar（7）By the first union joint（102）With the second union joint（103）Respectively with socket joint（101）Rotate connection, the swing component （104）With the first union joint（102）Rotate connection, the stage clip（105）Compress installed in swing component（104）With the first union joint （102）Between, the swing component（104）With hauling rope（9）It is fixedly connected, the frontier juncture section（100）Conciliate with lock-out state Lock status, when the frontier juncture is saved（100）When being in the lock state, the stage clip（105）Promote swing component（104）Rotation props up Two union joints（103）, first union joint（102）With the second union joint（103）Simultaneously by swing component（104）And stage clip （105）It is locked in socket joint（101）On；When the frontier juncture is saved（100）In released state when, the swing component（104）Rotate Get out of the way the second union joint（103）, first union joint（102）With the second union joint（103）Can respectively in socket joint（101） Upper rotation；Pull hauling rope（9）Swing component can be driven（104）Rotation saves frontier juncture（100）Unblock.

4. a kind of folding bed according to claim 3, it is characterised in that：The swing component（104）It is upper that there is lobe （106）, second union joint（103）Front portion have and lobe（106）The breach of cooperation（107）, when the frontier juncture is saved （100）When being in the lock state, the stage clip（105）Prop up swing component（104）, the lobe（106）Support into breach（107） It is interior；When the frontier juncture is saved（100）In released state when, the lobe（106）With breach（107）Separate, the swing component （104）The second union joint is got out of the way in rotation（103）.

5. a kind of folding bed according to claim 4, it is characterised in that：The socket joint（101）Including what is be arranged in parallel Two installing plates（108）With for connect two installing plates（108）Connecting plate（109）, the connecting plate（109）It is fixedly installed In two installing plates（108）Top, first union joint（102）With the second union joint（103）Respectively from socket joint（101） Right part and left part stretch into two described installing plates（108）Between space, first union joint（102）With the second connection Head（103）Two installing plates are riveted on respectively by rivet（108）Form above and respectively first and rotate secondary（111）Rotate with second It is secondary（112）, the swing component（104）Positioned at two described installing plates（108）Between space in, first union joint （102）Front lower portion have install swing component（104）Installation portion（110）, the swing component（104）With installation portion（110）It is logical Cross rivet and form the 3rd rotation pair（113）, first union joint（102）Front portion rotate secondary positioned at first（111）'s Left side, second union joint（103）Front portion rotate secondary positioned at second（112）Right side, the connecting plate（109）Gear is the One union joint（102）With the second union joint（103）Top and the first union joint can be limited（102）With the second union joint（103） Front portion be rotated up.

6. a kind of folding bed according to claim 5, it is characterised in that：The breach（107）Towards the second union joint（103） Lower right open, when the lobe（106）Support into breach（107）When interior, the swing component（104）And stage clip（105）Energy First union joint is limited enough（102）With the second union joint（103）Front portion rotate down.

7. a kind of folding bed according to claim 5, it is characterised in that：The installing plate（108）On offer gathering sill （114）, the swing component（104）Lobe（106）Stretch in gathering sill（114）It is interior, the lobe（106）It is only capable of edge to lead To groove（114）Extension track motion, the lobe（106）And gathering sill（114）Cooperation can control the swing component （104）Movement locus.

8. a kind of folding bed according to claim 1, it is characterised in that：The unlock piece（201）In subbase（200）On With first position and the second position, work as unlock piece（201）In first position when, the unlock piece（201）With hauling rope（9） Between keep relaxed state, the frontier juncture section（100）Can be by the first peripheral frame bar（6）With the second peripheral frame bar（7）Locking；Work as unblock Part（201）In the second position when, the unlock piece（201）Pull hauling rope（9）Make multiple frontier juncture sections（100）Synchronizing unlocking.

9. a kind of folding bed according to claim 8, it is characterised in that：The subbase（200）On be also equipped with unblock Spanner（202）And connector（203）, the unlock piece（201）It is slidably mounted in subbase（200）On, the unblock is pulled Handss（202）It is installed in rotation on subbase（200）On, the connector（203）Respectively with unlock piece（201）With unblock spanner （202）Rotate connection, the unblock spanner（202）, connector（203）, unlock piece（201）And subbase（200）Constitute crank Slide block mechanism, in subbase（200）On back and forth switching unblock spanner（202）Unlock piece can be made（201）In first position and Slidably reciprocate between two positions switching position.

10. a kind of folding bed according to claim 9, it is characterised in that：The unblock spanner（202）Top be formed with For the spanner portions that staff is puted forth effort（204）, the unblock spanner（202）Bottom have and connector（203）Rotate the company of connection Socket part（205）, the connecting portion（205）In hook-shaped, the connecting portion（205）Hook and slot with unidirectional opening（206）, the company Fitting（203）It is embedded in hook and slot（206）Interior and unblock spanner（202）Rotate connection.

A kind of 11. folding beds according to claim 9, it is characterised in that：The subbase（200）Bottom open up oriented The chute of lower extension（207）, the unlock piece（201）Installed in chute（207）Interior, switching back and forth unlocks spanner（202）Pull Hand（204）Unlock piece can be made（201）In chute（207）Inside slide up and down.

A kind of 12. folding beds according to claim 10, it is characterised in that：The connector（203）It is in crank-like, described Connector（203）Including left gudgeon（208）, auris dextra axle（209）, middle shaft part（210）And connect left gudgeon（208）With middle shaft part （210）, auris dextra axle（209）With middle shaft part（210）Connecting shaft（211）, the left gudgeon（208）With auris dextra axle（209）Axle Heart line is conllinear and is located at middle shaft part（210）Top, the middle shaft part（210）With left gudgeon（208）With auris dextra axle（209）It is flat OK, the left gudgeon（208）With auris dextra axle（209）It is respectively embedded in the unblock spanner（202）Hook and slot（206）It is interior, it is described Middle shaft part（210）With unlock piece（201）Rotate connection.

A kind of 13. folding beds according to claim 1, it is characterised in that：The footpost（2）It is fixedly mounted on angle joint （5）Lower section, the footpost（2）Vertically extend, the footpost（2）Bottom is fixedly installed bottom joint（10）, it is described Bottom bracing frame（3）Positioned at described multiple footposts（2）Between, the bottom supporting rod（8）By bottom joint（10）With footpost（2）The company of rotation Connect, the bottom supporting rod（8）When bedstead is in deployed condition, the bottom supporting rod（8）Flattening is in subbase（200）With bottom joint （10）Between；When bedstead is folded, subbase is lifted upwards（200）, subbase（200）Bottom supporting rod can be driven（8）The bottom of with respect to Joint（10）It is rotated up.

A kind of 14. folding beds according to claim 1, it is characterised in that：The first peripheral frame bar（6）, the second peripheral frame bar （7）, footpost（2）And bottom supporting rod（8）It is hollow pipe fitting, the hauling rope（9）It is located in the first peripheral frame bar（6）, second enclose Frame bar（7）, footpost（2）And bottom supporting rod（8）It is interior and connect frontier juncture section（100）And unlock piece（201）.

A kind of 15. folding beds according to claim 1, it is characterised in that：A part of footpost in the bedstead（2）Bottom It is provided with wheel（11）, lifting bedstead makes non-installing wheel（11）Footpost（2）Liftoff and promote folding bed, folding bed can be Wheel（11）Drive under in ground moving.

A kind of 16. folding beds according to claim 1, it is characterised in that：The first peripheral frame bar（6）, the second peripheral frame bar （7）, footpost（2）And bottom supporting rod（8）It is hollow pipe fitting, the hauling rope（9）Sequentially pass through the second peripheral frame bar（7）, angle close Section（5）, footpost（2）And bottom supporting rod（8）, and hauling rope（9）Two ends respectively with frontier juncture save（100）And unlock piece（201）Connection.