Mattress suitable for folding bed

Abstract

The utility model discloses a mattress suitable for a folding bed, which comprises a first mattress body and a second mattress body, when the mattress is used, the first mattress body and the second mattress body are correspondingly laid on a folding bed frame to be spliced into the mattress, each of the first mattress body and the second mattress body comprises a core body and a cover body, and the cover body is sleeved outside the core body; the core body comprises a frame layer, a PK cotton layer, a bagged spring layer, a cotton felt layer, a powder-free sponge layer and a memory sponge layer which are sequentially and correspondingly bonded and laid from bottom to top, a net body layer is fixedly welded to the upper side face of the frame layer, and the PK cotton layer is fixedly bonded to the upper side face of the net body layer; the core body further comprises sponge side strips which are fixedly arranged on the peripheral side faces of the frame layer, the net body layer, the PK sponge layer, the bagged spring layer, the cotton felt layer, the powder-free sponge layer and the memory sponge layer in a bonding mode. Through the split type structural design, the mattress is well matched with a bed frame of the folding bed, and the folding and storage requirements of the folding bed are met; the mattress has good lying comfort; meanwhile, the whole mattress has a good three-dimensional effect, and the appearance visual effect of a high-end mattress is met.

Description

Technical Field

[0001] The utility model relates to the technical field of mattresses, in particular to a mattress suitable for a folding bed. Background Art

[0002] A mattress is an item that is placed between the human body and the bed to ensure that consumers get a healthy and comfortable sleep. Mattresses are made of a variety of materials, and mattresses made of different materials can bring different sleeping effects to people. With the continuous advancement of material civilization and technological processes, the types of mattresses used by modern people have gradually become diversified, mainly including: spring mattresses, palm mattresses, latex mattresses, water mattresses, inclined spine protection mattresses, air mattresses, magnetic mattresses, etc.

[0003] At present, most high-end mattresses that are comfortable to lie on are designed for daily home beds, and mattresses suitable for folding beds are rarely reported. Ordinary mattresses are mostly suitable for larger beds due to the constraints of design structure and manufacturing process, and cannot be directly processed into mattresses suitable for folding beds. Therefore, the utility model proposes a mattress suitable for folding beds, in order to improve the lying comfort of folding beds. Summary of the invention

[0004] The purpose of the utility model is to overcome the defects in the prior art and provide a mattress suitable for a folding bed, which is formed by a cushion body one and a cushion body two being joined and spliced ​​together. The split structural design makes the mattress well compatible with the bed frame of the folding bed, meeting the folding and storage requirements of the folding bed; the structural design of the cushion body one and the cushion body two is reasonable: the memory foam layer located on the top layer has a good wrapping and comfort effect on the shape of the human body after lying down, ensuring that the mattress has good lying comfort; the powder-free sponge layer has a good rebound effect; the cotton felt layer has good wear resistance, and the cotton felt layer is in contact with the mesh layer to protect the sponge on the upper side, ensuring that the mattress has a long service life; the PK cotton layer located on the bottom layer has high hardness and plays a good supporting role; at the same time, the whole has a good three-dimensional effect, meeting the appearance and visual effect of high-end mattresses; the overall structural design is simple, the preparation and implementation feasibility is high, and the practicability is strong.

[0005] To achieve the above-mentioned purpose, the technical solution of the utility model is to design a mattress suitable for a folding bed, comprising a cushion body one and a cushion body two. When in use, the cushion body one and the cushion body two are correspondingly laid on the folding bed frame to form the mattress. The cushion body one and the cushion body two both include a core body and a cover body. The cover body is sleeved on the outside of the core body. The core body includes a frame layer, a PK cotton layer, a pocket spring layer, a cotton felt layer, a powder-free sponge layer and a memory foam layer which are bonded and laid in sequence from bottom to top. A mesh layer is welded and fixed on the upper side of the frame layer. The PK cotton layer is bonded and fixed on the upper side of the mesh layer. The core body also includes sponge side strips bonded and fixed on the outer peripheral sides of the frame layer, the mesh layer, the PK cotton layer, the pocket spring layer, the cotton felt layer, the powder-free sponge layer and the memory foam layer.

[0006] The utility model discloses a mattress suitable for a folding bed, which is formed by a cushion body one and a cushion body two being joined and spliced ​​together. The split structural design makes the mattress well compatible with the bed frame of the folding bed, meeting the folding and storage requirements of the folding bed; the structural design of the cushion body one and the cushion body two is reasonable: the memory foam layer located on the top layer has a good wrapping and comfort effect on the shape of the human body after lying down, ensuring that the mattress has good lying comfort; the powder-free sponge layer has a good rebound effect; the cotton felt layer has good wear resistance, and the cotton felt layer contacts with the mesh layer to protect the sponge on the upper side, ensuring that the mattress has a long service life; the PK cotton layer located on the bottom layer has high hardness and plays a good supporting role; at the same time, the whole has a good three-dimensional effect, meeting the appearance and visual effect of a high-end mattress; the overall structural design is simple, the preparation and implementation feasibility is high, and the practicability is strong.

[0007] The preferred technical solution is that the thickness of the PK sponge layer is 3-8mm, the thickness of the pocket spring layer is 60-80mm, the thickness of the cotton felt layer is 3-8mm, the thickness of the powder-free sponge layer is 20-30mm, the thickness of the memory sponge layer is 20-30mm, and the thickness of the sponge side strip is 15-30mm. The thickness of each layer of material is reasonably designed to ensure that the overall thickness of the mattress is reasonably designed, and further ensure that the mattress has a good use effect.

[0008] A further preferred technical solution is that the frame layer located inside the cushion body 1 includes a frame unit 1 and a frame unit 2, the tube ends located at the front and rear side edges of the frame unit 1 form a Z-shaped tube body joint 1 extending to the upper right to the inside of the corresponding core body, and the tube ends located at the front and rear side edges of the frame unit 2 form a Z-shaped tube body joint 2 extending to the upper left to the inside of the corresponding core body, and the Z-shaped tube body joint 1 and the Z-shaped tube body joint 2 corresponding to the front side of the cushion body 1, and the Z-shaped tube body joint 1 and the Z-shaped tube body joint 2 corresponding to the rear side of the cushion body 1 are respectively pivoted together by a pitch angle adjuster, and the frame unit 1 can adjust the pitch posture in the vertical plane through the pitch angle adjusters on the front and rear sides. The front and rear sides between the frame unit 1 and the frame unit 2 inside the cushion body 1 are respectively pivoted together by the pitch angle adjusters, so that the frame unit 1 can adjust the pitch posture in the vertical plane, meet the supine needs of the user's head and back, and improve the flexibility of the mattress.

[0009] A further preferred technical solution is that the cushion body 1 also includes a caulking sponge strip, and the front and rear ends of the caulking sponge strip correspond to one of the pitch angle adjusters respectively. The pocket spring layer and cotton felt layer located inside the cushion body 1 each include two parts corresponding to the left and right sides of the caulking sponge strip, and the left and right sides of the caulking sponge strip are respectively bonded to the corresponding sides of the pocket spring layer on the corresponding side. The pocket spring layer and cotton felt layer inside the cushion body 1 each include two parts corresponding to the left and right sides of the caulking sponge strip, thereby ensuring that the frame unit 1 has good flexibility when adjusting the pitch posture in the vertical plane, and at the same time, the caulking sponge strip has a good sealing and filling effect on the joint position of the pocket spring layer and the cotton felt layer, ensuring that the cushion body 1 has good lying comfort.

[0010] A further preferred technical solution is that the pitch angle adjuster comprises a plug-in tube 1, a plug-in tube 2, a locking plate, a locking block and a torsion spring, the left end of the plug-in tube 1 is plugged and fixedly arranged on the free end of the Z-shaped tube body joint 1, and the right end of the plug-in tube 1 is provided with a pair of ear plates 1, a pair of the ear plates 1 are correspondingly provided with a mounting hole 1 penetrating the plate body, a pair of the ear plates 1 are correspondingly provided with a toothed area located at the lower right side edge position, a pair of the ear plates 1 are correspondingly provided with an unlocking block located at the upper left side edge position, and a reset block extending vertically toward the other ear plate 1 is also provided on the upper left side of one of the ear plates 1;

[0011] The right end of the second plug-in pipe is plugged and fixed to the free end of the second Z-shaped pipe body joint, and the left end of the second plug-in pipe is provided with a pair of second ear plates, and the pair of second ear plates are provided with mounting holes 2 and 3 that penetrate the plate body from left to right in sequence;

[0012] A pair of ear plates 1 are movably mounted in the cavities of a pair of ear plates 2, and the two are pivotally connected together through a rivet 1 penetrating through the inside of the mounting hole 1 and the mounting hole 2, the locking plate has a mounting hole 4 penetrating through the plate body, the locking plate is mounted on the rivet 1 through the mounting hole 4, and the locking plate is located in the cavity of the pair of ear plates 1, the locking plate has an arc-shaped flange located at the lower right side edge and a reset groove located at the lower left side opening backwards, and the reset groove is correspondingly located below the reset block;

[0013] The locking block has a mounting hole 5, the locking block is located at the right end of the cavity of the pair of ear plates 2, and is pivotally connected to the pair of ear plates 2 through the rivet 2 that penetrates the mounting hole 5 and the mounting hole 3. The left end of the locking block has a locking groove 1 that is meshed with the tooth area on the pair of ear plates 1, and the right end of the locking block has a notch located at the front or rear side. The torsion spring is sleeved on the rivet 2 and is correspondingly located inside the notch. The left end of the torsion spring is hooked on the bottom left side of the locking block, and the right end abuts against the left end of the upper inner wall of the plug-in tube 2. The upper side of the locking block has a locking groove 2 that is correspondingly matched with the arc-shaped flange on the locking plate. The pitch angle adjuster has a simple structural design, so that the frame unit 1 can adjust the lying angle step by step when adjusting the pitch posture in the vertical plane, and the operation is simple, which improves the flexibility of use of the mattress of the utility model.

[0014] A further preferred technical solution is that the locking plate has a limiting protrusion extending to the front or rear side at the upper edge thereof, and the limiting protrusion and the torsion spring are located at the front and rear sides of the locking plate, and the free end of the limiting protrusion abuts against the corresponding ear plate 1. The limiting protrusion and the torsion spring are located at the front and rear sides of the locking plate, ensuring that the locking plate always remains in the middle position of the cavity of a pair of ear plates 1 during the pitch posture adjustment of the frame unit 1 in the vertical plane, thereby ensuring the smoothness and stability of the pad body 1 during the pitch posture adjustment.

[0015] A further preferred technical solution is that the length dimension of the cushion body 1 along the folding bed frame is set to X1, and the length dimension of the cushion body 2 along the folding bed frame is set to X2, then X1:X2=6:4~5.5:4.5. By setting the length dimensions of the cushion body 1 and the cushion body 2 along the folding bed frame to a ratio range of 6:4~5.5:4.5, the folding bed frame can also be correspondingly designed as two bed frame units in a ratio range of 6:4~5.5:4.5, so that when an adult user lies on the flattened folding bed, the buttocks are completely located on the cushion body 1, and the structural design conforms to the ergonomic principles, thereby significantly improving the lying comfort of the folding mattress when in use.

[0016] A further preferred technical solution is that the cover body includes a fabric layer and a composite sponge layer, the composite sponge layer is fixed on the inner side of the fabric layer, and the thickness of the composite sponge layer ranges from 15 to 20 mm. The cover body structure is reasonably designed, and the composite sponge layer plays a lining support role for the fabric, ensuring that the cover body has good flatness, thereby further ensuring that the folding mattress has a good appearance visual effect.

[0017] A further preferred technical solution is that the bottom of the first cushion body and the bottom of the second cushion body are respectively provided with mounting holes penetrating the bottom surface of the cover body and the frame layer. When in use, the first cushion body and the second cushion body can be fixedly mounted on the folding bed frame by screws, and the fixing and installation or disassembly is simple, ensuring that the folding mattress has good convenience in use.

[0018] The advantages and beneficial effects of the utility model are:

[0019] 1. The utility model discloses a mattress suitable for a folding bed, which is formed by joining and splicing a cushion body one and a cushion body two. The split structural design makes the mattress well compatible with the bed frame of the folding bed, meeting the folding and storage requirements of the folding bed; the structural design of the cushion body one and the cushion body two is reasonable: the memory foam layer located on the top layer has a good wrapping and comfort effect on the shape of the human body after lying down, ensuring that the mattress has good lying comfort; the powder-free sponge layer has a good rebound effect; the cotton felt layer has good wear resistance, and the cotton felt layer contacts with the mesh layer to protect the sponge on the upper side, ensuring that the mattress has a long service life; the PK cotton layer located on the bottom layer has high hardness and plays a good supporting role; at the same time, the whole has a good three-dimensional effect, meeting the appearance and visual effect of high-end mattresses; the overall structural design is simple, the preparation and implementation feasibility is high, and the practicability is strong.

[0020] 2. The front and rear sides of the frame unit 1 and the frame unit 2 inside the mattress body 1 are pivotally connected together through a pitch angle adjuster, so that the frame unit 1 can be adjusted in pitch in a vertical plane to meet the user's supine needs for the head and back, thereby improving the flexibility of the mattress.

[0021] 3. The pocket spring layer and cotton felt layer inside the cushion body 1 include two parts corresponding to the left and right sides of the caulking sponge strip, thereby ensuring that the frame unit 1 has good flexibility when adjusting the pitch posture in the vertical plane. At the same time, the caulking sponge strip has a good sealing and filling effect on the joint position of the pocket spring layer and the cotton felt layer, ensuring that the cushion body 1 has good lying comfort.

[0022] 4. The pitch angle adjuster has a simple structural design, so that the frame unit 1 can adjust the lying angle step by step when adjusting the pitch posture in the vertical plane, which is easy to operate and improves the flexibility of use of the mattress of the utility model.

[0023] 5. The limit protrusions and torsion springs are located on the front and rear sides of the locking plate to ensure that the locking plate always remains in the middle position of a pair of ear plate cavities during the pitch adjustment of the frame unit in the vertical plane, thereby ensuring the smoothness and stability of the pad body during the pitch adjustment.

[0024] 6. By setting the length dimensions of the cushion body 1 and the cushion body 2 along the folding bed frame to a ratio range of 6:4 to 5.5:4.5, the folding bed frame can also be designed as two bed frame units with a ratio range of 6:4 to 5.5:4.5, so that when an adult user lies on the flattened folding bed, the buttocks are all located on the cushion body 1. The structural design conforms to the principles of ergonomics, thereby significantly improving the lying comfort of the folding mattress when in use.

[0025] 7. The cover body structure is reasonably designed, and the composite sponge layer plays an inner lining support role for the fabric, ensuring that the cover body has good flatness, thereby further ensuring that the folding mattress has a good appearance visual effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 This is a schematic diagram of the three-dimensional structure of a mattress suitable for a folding bed from the right front side perspective of the utility model;

[0027] Figure 2 This is a schematic diagram of the three-dimensional structure of a mattress suitable for a folding bed from an upward angle (the bottom surface of the cover is hidden);

[0028] Figure 3 1 is a schematic diagram of the internal structure of the pad body 1;

[0029] Figure 4 is a partial cross-sectional view of the cushion body 2;

[0030] Figure 5 It is a three-dimensional structural diagram of the pitch angle adjuster;

[0031] Figure 6 This is a disassembled structural diagram of the pitch angle adjuster;

[0032] Figure 7 This is the assembly relationship diagram of the locking block and the torsion spring on the rivet 2;

[0033] Figure 8 is a partial cross-sectional view of the pitch angle adjuster when the pad body is in a horizontal state;

[0034] Fig. 9 It is a partial cross-sectional view of the pitch angle adjuster when the frame unit 1 and the frame unit 2 of the cushion body 1 are at an angle of 90°-180°;

[0035] Fig.10It is a partial cross-sectional view of the frame unit 1 and the frame unit 2 of the cushion body 1 when the pitch angle adjuster is in a disengaged and unlocked state and the angle is 90 degrees.

[0036] In the figure: 1, cushion body 1; 2, cushion body 2; 3, cover body; Ⅰ, frame unit 1; Ⅰ-1, Z-shaped pipe body joint 1; Ⅱ, frame unit 2; Ⅱ-1, Z-shaped pipe body joint 2; Ⅲ, pitch angle adjuster; a, frame layer; b, mesh layer; c, PK cotton layer; d, pocket spring layer; e, cotton felt layer; f, powder-free sponge layer; g, memory sponge layer; h, composite sponge layer; i, fabric layer; j, sponge side strip; k, caulking sponge strip; A, plug-in tube 1; A-1, ear plate 1; A- 1a, reset block; A-2, mounting hole one; A-3, tooth area; A-4, unlocking block; B, plug-in tube two; B-1, ear plate two; B-2, mounting hole two; B-3, mounting hole three; C, locking plate; C-1, mounting hole four; C-2, arc flange; C-3, reset groove; C-4, limiting protrusion; D, locking block; D-1, mounting hole five; D-2, locking groove one; D-3, notch groove; D-4, locking groove two; E, torsion spring; F, rivet one; G, rivet two. DETAILED DESCRIPTION

[0037] The following is a further description of the specific implementation of the present invention in conjunction with the accompanying drawings and embodiments. The following embodiments are only used to more clearly illustrate the technical solution of the present invention, and cannot be used to limit the protection scope of the present invention.

[0038] Example

[0039] like Figures 1 to 7 As shown, the utility model is a mattress suitable for a folding bed, comprising a cushion body 1 and a cushion body 2. When in use, the cushion body 1 and the cushion body 2 are correspondingly laid on the folding bed frame to form the mattress. The cushion body 1 and the cushion body 2 both include a core body and a cover body 3. The cover body 3 is sleeved on the outside of the core body. The core body includes a frame layer a, a PK cotton layer c, a pocket spring layer d, a cotton felt layer e, a powder-free sponge layer f and a memory foam layer g which are bonded and laid in sequence from bottom to top. A mesh layer b is welded and fixed on the upper side of the frame layer a. The PK cotton layer c is bonded and fixed on the upper side of the mesh layer b. The core body also includes sponge side strips j bonded and fixed on the outer peripheral sides of the frame layer a, the mesh layer b, the PK cotton layer c, the pocket spring layer d, the cotton felt layer e, the powder-free sponge layer f and the memory foam layer g.

[0040] Preferably, the thickness range of the PK sponge layer c is 3 to 8 mm, the thickness range of the pocket spring layer d is 60 to 80 mm, the thickness range of the cotton felt layer e is 3 to 8 mm, the thickness range of the powder-free sponge layer f is 20 to 30 mm, the thickness range of the memory sponge layer g is 20 to 30 mm, and the thickness range of the sponge side strip j is 15 to 30 mm.

[0041] Further preferably, the frame layer a located inside the cushion body 1 includes a frame unit 1I and a frame unit 2II, the tube ends located at the front and rear side edges of the frame unit 1I form a Z-shaped tube joint 1I-1 extending to the upper right to the inside of the corresponding core body, the tube ends located at the front and rear side edges of the frame unit 2II form a Z-shaped tube joint 2II-1 extending to the upper left to the inside of the corresponding core body, the Z-shaped tube joint 1I-1 and the Z-shaped tube joint 2II-1 corresponding to the front side of the cushion body 1, and the Z-shaped tube joint 1I-1 and the Z-shaped tube joint 2II-1 corresponding to the rear side of the cushion body 1 are pivotally connected together by a pitch angle adjuster III respectively, and the frame unit 1I can adjust the pitch posture in the vertical plane through the pitch angle adjusters III on the front and rear sides.

[0042] Further preferably, the cushion body 1 also includes a caulking sponge strip k, the front and rear ends of the caulking sponge strip k respectively correspond to one of the pitch angle adjusters III, the pocket spring layer d and the cotton felt layer e located inside the cushion body 1 both include two parts corresponding to the left and right sides of the caulking sponge strip k, and the left and right side surfaces of the caulking sponge strip k are respectively bonded to the corresponding side surfaces of the pocket spring layer d on the corresponding side.

[0043] Further preferably, the pitch angle adjuster III comprises a plug-in tube A, a plug-in tube B, a locking plate C, a locking block D and a torsion spring E, the left end of the plug-in tube A is plugged and fixedly arranged on the free end of the Z-shaped tube body joint I-1, and the right end of the plug-in tube A is provided with a pair of ear plates A-1, and the pair of ear plates A-1 are correspondingly provided with mounting holes A-2 penetrating the plate body, and the pair of ear plates A-1 are correspondingly provided with tooth areas A-3 located at the lower right side edge position, and the pair of ear plates A-1 are correspondingly provided with unlocking blocks A-4 located at the upper left side edge position, and a reset block A-1a extending vertically toward the other ear plate A-1 is also provided on the upper left side of one of the ear plates A-1;

[0044] The right end of the plug-in pipe 2B is plugged and fixed to the free end of the Z-shaped pipe body joint 2 Ⅱ-1, and the left end of the plug-in pipe 2B is provided with a pair of ear plates 2B-1, and the pair of ear plates 2B-1 are provided with mounting holes 2B-2 and mounting holes 3B-3 that penetrate the plate body from left to right in sequence;

[0045] A pair of ear plates A-1 are movably installed in the cavities of a pair of ear plates B-1, and the two are pivotally connected together through a rivet F penetrating through the mounting hole A-2 and the mounting hole B-2. The locking plate C has a mounting hole C-1 penetrating through the plate body. The locking plate C is installed on the rivet F through the mounting hole C-1. The locking plate C is located in the cavity of the pair of ear plates A-1. The locking plate C has an arc-shaped flange C-2 located at the lower right side edge and a reset groove C-3 located at the lower left side and opening backwards, and the reset groove C-3 is correspondingly located below the reset block A-1a.

[0046] The locking block D is provided with a mounting hole five D-1, and the locking block D is located at the right end of the cavity of a pair of ear plates two B-1, and is pivotally connected to the pair of ear plates two B-1 through a rivet two G penetrating through the mounting hole five D-1 and the mounting hole three B-3. The left end of the locking block D has a locking groove one D-2 that meshes with the tooth area A-3 on the pair of ear plates one A-1, and the right end of the locking block D has a notch groove D-3 located on the front side or the rear side. The torsion spring E is sleeved on the rivet two G and is correspondingly located inside the notch groove D-3. The left end of the torsion spring E is hooked on the left side of the bottom of the locking block D, and the right end abuts against the left end of the upper inner wall of the plug-in tube two B. The upper side surface of the locking block D has a locking groove two D-4 that corresponds to the arc flange C-2 on the locking plate C.

[0047] Further preferably, the upper side edge of the locking plate C has a limiting protrusion C-4 extending toward the front or rear side, and the limiting protrusion C-4 and the torsion spring E are located on the front and rear sides of the locking plate C, and the free end of the limiting protrusion C-4 abuts against the corresponding ear plate A-1.

[0048] Further preferably, the length dimension of the cushion body 1 along the folding bed frame is set to X1, and the length dimension of the cushion body 2 along the folding bed frame is set to X2, then X1:X2=6:4~5.5:4.5.

[0049] Further preferably, the cover body 3 includes a fabric layer i and a composite sponge layer h, the composite sponge layer h is fixed on the inner side of the fabric layer i, and the thickness of the composite sponge layer h is in the range of 15 to 20 mm.

[0050] A further preferred technical solution is that the bottom of the cushion body 1 and the bottom of the cushion body 2 2 are respectively provided with mounting holes penetrating the bottom surface of the cover body 3 and the frame layer a.

[0051] The utility model discloses a mattress suitable for a folding bed. ...

[0052] The cushion body 1 and the cushion body 2 are butt-jointed and laid on the folding bed frame, and are fixed together by screws or screws penetrating the corresponding positions of the frame unit 2Ⅱ at the bottom of the cushion body 1 or the bottom of the cushion body 2 and the corresponding screw holes on the folding bed frame; the cushion body 1 is in a horizontal state, which is defined as the initial state (see the attached Figure 8 ), at this time, the locking groove D-2 on the locking block D is meshed with the tooth area A-3 on the pair of ear plates A-1, and the arc flange C-2 and the locking groove D-4 on the locking block D are in the unlocked state; when the back of the cushion body 1 needs to be adjusted from the horizontal state to a certain upward angle, hold the lower side of the cushion body 1 corresponding to the frame unit Ⅰ with your hand and flip it upward by a certain angle (the angle between the frame unit Ⅰ and the frame unit Ⅱ is 90°~180°) (see the attached Fig. 9 ); When the frame unit I inside the cushion body 1 needs to be restored to its initial horizontal state, hold the lower side of the cushion body 1 corresponding to the frame unit I by hand and flip it upward to 90° (see attached Fig.10 ), the unlocking block A-4 on the plug-in tube A abuts against the upper left side edge of the locking plate C and drives the locking plate C to rotate clockwise around the rivet F until the arc-shaped flange C-2 on the locking plate C is engaged with the locking groove D-4 on the locking block D and transformed into a locked state. At this time, the locking groove D-2 on the locking block D is disengaged from the toothed area A-3 on a pair of ear plates A-1, and then the frame unit I is slowly lowered. When the frame unit I approaches a horizontal state, the reset block A-1a is embedded in the reset groove C-3 on the locking plate C, and the frame unit I continues to move downward. At the same time, the reset block A-1a drives the locking plate C to rotate counterclockwise until the arc-shaped flange C-2 on the locking plate C is gradually disengaged from the locking groove D-4 on the locking block D and transformed into an unlocked state, and the locking groove D-2 on the locking block D is restored to an engaged state with the toothed area A-3 on a pair of ear plates A-1 (see Appendix). Figure 8 ).

[0053] The utility model discloses a mattress suitable for a folding bed, which is formed by a cushion body one and a cushion body two being joined and spliced ​​together. The split structural design makes the mattress well compatible with the bed frame of the folding bed, meeting the folding and storage requirements of the folding bed; the structural design of the cushion body one and the cushion body two is reasonable: the memory foam layer located on the top layer has a good wrapping and comfort effect on the shape of the human body after lying down, ensuring that the mattress has good lying comfort; the powder-free sponge layer has a good rebound effect; the cotton felt layer has good wear resistance, and the cotton felt layer contacts with the mesh layer to protect the sponge on the upper side, ensuring that the mattress has a long service life; the PK cotton layer located on the bottom layer has high hardness and plays a good supporting role; at the same time, the whole has a good three-dimensional effect, meeting the appearance and visual effect of a high-end mattress; the overall structural design is simple, the preparation and implementation feasibility is high, and the practicability is strong.

[0054] The above is only a preferred embodiment of the present invention. It should be pointed out that for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the technical principle of the present invention. These improvements and modifications should also be regarded as the protection scope of the present invention.

Claims

1. A mattress suitable for a folding bed, characterized in that: The invention comprises a cushion body 1 (1) and a cushion body 2 (2). When in use, the cushion body 1 (1) and the cushion body 2 (2) are laid on the folding bed frame to form the mattress. The cushion body 1 (1) and the cushion body 2 (2) both comprise a core body and a cover body (3). The cover body (3) is sleeved on the outside of the core body. The core body comprises a frame layer (a), a PK cotton layer (c), a pocket spring layer (d), a cotton felt layer (e), a powder-free sponge layer (f) and a memory sponge layer (g) which are bonded and laid in sequence from bottom to top. A mesh layer (b) is welded and fixed on the upper side of the frame layer (a). The PK cotton layer (c) is bonded and fixed on the upper side of the mesh layer (b). The core body also comprises sponge side strips (j) bonded and fixed on the outer peripheral sides of the frame layer (a), the mesh layer (b), the PK cotton layer (c), the pocket spring layer (d), the cotton felt layer (e), the powder-free sponge layer (f) and the memory sponge layer (g).

2. The mattress suitable for a folding bed according to claim 1, characterized in that: The thickness of the PK sponge layer (c) is in the range of 3 to 8 mm, the thickness of the pocket spring layer (d) is in the range of 60 to 80 mm, the thickness of the cotton felt layer (e) is in the range of 3 to 8 mm, the thickness of the powder-free sponge layer (f) is in the range of 20 to 30 mm, the thickness of the memory sponge layer (g) is in the range of 20 to 30 mm, and the thickness of the sponge side strip (j) is in the range of 15 to 30 mm.

3. The mattress suitable for a folding bed according to claim 2, characterized in that: The frame layer (a) located inside the cushion body 1 (1) includes a frame unit 1 (I) and a frame unit 2 (II). The end portions of the tubes located at the front and rear edges of the frame unit 1 (I) form a Z-shaped tube joint 1 (I-1) extending to the upper right to the inside of the corresponding core body. The end portions of the tubes located at the front and rear edges of the frame unit 2 (II) form a Z-shaped tube joint 2 (II-1) extending to the upper left to the inside of the corresponding core body. The Z-shaped tube joint 1 (I-1) and the Z-shaped tube joint 2 (II-1) corresponding to the front side of the cushion body 1 (1) and the Z-shaped tube joint 1 (I-1) and the Z-shaped tube joint 2 (II-1) corresponding to the rear side of the cushion body 1 (1) are pivotally connected together through a pitch angle adjuster (III). The frame unit 1 (I) can adjust its pitch posture in a vertical plane through the pitch angle adjusters (III) on the front and rear sides.

4. The mattress suitable for a folding bed according to claim 3, characterized in that: The cushion body 1 (1) also includes a caulking sponge strip (k), and the front and rear ends of the caulking sponge strip (k) respectively correspond to one of the pitch angle adjusters (III). The pocket spring layer (d) and the cotton felt layer (e) located inside the cushion body 1 (1) each include two parts corresponding to the left and right sides of the caulking sponge strip (k), and the left and right side surfaces of the caulking sponge strip (k) are respectively bonded to the corresponding side surfaces of the pocket spring layer (d) on the corresponding side.

5. The mattress suitable for a folding bed according to claim 4, characterized in that: The pitch angle adjuster (III) comprises a plug-in tube (A), a plug-in tube (B), a locking plate (C), a locking block (D) and a torsion spring (E), wherein the left end of the plug-in tube (A) is plugged and fixedly arranged on the free end of the Z-shaped tube body joint (I-1), and the right end of the plug-in tube (A) is provided with a pair of ear plates (A-1), and the pair of ear plates (A-1) are respectively provided with mounting holes (A-2) penetrating the plate body, and the pair of ear plates (A-1) are respectively provided with tooth areas (A-3) located at the lower right side edge position, and the pair of ear plates (A-1) are respectively provided with unlocking blocks (A-4) located at the upper left side edge position, and a reset block (A-1a) extending vertically toward the other ear plate (A-1) is also provided on the upper left side of one ear plate (A-1); The right end of the plug-in pipe 2 (B) is plugged and fixed to the free end of the Z-shaped pipe body joint 2 (II-1), and the left end of the plug-in pipe 2 (B) is provided with a pair of ear plates 2 (B-1), and the pair of ear plates 2 (B-1) are provided with mounting holes 2 (B-2) and mounting holes 3 (B-3) penetrating the plate body from left to right in sequence; A pair of ear plates (A-1) are movably mounted in the cavities of a pair of ear plates (B-1), and the two are pivotally connected together through a rivet (F) penetrating the inside of the mounting hole (A-2) and the mounting hole (B-2). The locking plate (C) has a mounting hole (C-1) penetrating the plate body. The locking plate (C) is mounted on the rivet (F) through the mounting hole (C-1). The locking plate (C) is located in the cavities of the pair of ear plates (A-1). The locking plate (C) has an arc-shaped flange (C-2) located at the lower right side edge and a reset groove (C-3) located at the lower left side and opening backwards, and the reset groove (C-3) is correspondingly located below the reset block (A-1a); The locking block (D) has a mounting hole five (D-1), the locking block (D) is located at the right end of the cavity of the pair of ear plates two (B-1), and is pivotally connected to the pair of ear plates two (B-1) through a rivet two (G) penetrating the inside of the mounting hole five (D-1) and the mounting hole three (B-3), and the left end of the locking block (D) has a locking groove one (D-2) that meshes with the tooth area (A-3) on the pair of ear plates one (A-1). The right end of the locking block (D) has a notch groove (D-3) located on the front side or the rear side, the torsion spring (E) is sleeved on the rivet 2 (G) and is correspondingly located inside the notch groove (D-3), the left end of the torsion spring (E) is hooked on the left side of the bottom of the locking block (D), and the right end is abutted against the left end of the upper inner wall surface of the plug-in tube 2 (B), and the upper side surface of the locking block (D) has a locking groove 2 (D-4) corresponding to the arc-shaped flange (C-2) on the locking plate (C).

6. The mattress suitable for a folding bed according to claim 5, characterized in that: The upper side edge of the locking plate (C) has a limiting protrusion (C-4) extending toward the front or rear side, and the limiting protrusion (C-4) and the torsion spring (E) are located on the front and rear sides of the locking plate (C), and the free end of the limiting protrusion (C-4) abuts against the corresponding ear plate (A-1).

7. The mattress suitable for a folding bed according to any one of claims 1 to 6, characterized in that: The length dimension of the cushion body 1 (1) along the folding bed frame is set as X1, and the length dimension of the cushion body 2 (2) along the folding bed frame is set as X2, then X1:X2=6:4~5.5:4.

5.

8. The mattress suitable for a folding bed according to claim 7, characterized in that: The cover body (3) comprises a fabric layer (i) and a composite sponge layer (h), wherein the composite sponge layer (h) is fixedly arranged on the inner side of the fabric layer (i), and the thickness of the composite sponge layer (h) is in the range of 15 to 20 mm.

9. The mattress suitable for a folding bed according to claim 8, characterized in that: The bottom of the cushion body 1 (1) and the bottom of the cushion body 2 (2) are respectively provided with mounting holes penetrating the bottom surface of the cover body (3) and the frame layer (a).

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