A telescopic pad

Abstract

The invention discloses a telescopic pad, comprising a soft outer shell and an elastic telescopic pad, wherein the soft outer shell wraps the elastic telescopic pad; an elastic device for adjusting the length of the soft outer shell body and the elastic telescopic pad is provided at one end of the soft outer shell, when the elastic device is tightened, the elastic telescopic pad is compressed and shortened by folding one end of the soft outer shell, and the soft outer shell is also shortened synchronously when it is folded; after tightening, the elastic telescopic pad tightens the soft outer shell by its own rebound expansion force after compression; after the elastic device is completely loosened, the elastic telescopic pad automatically stretches and lengthens the soft outer shell by its own rebound expansion force, and the soft outer shell body and the elastic telescopic pad are lengthened; when the baby hammock of this product is to be adjusted to a high position, the telescopic pad is compressed and shortened and fixed in length and placed in the inner bottom of the bed pocket, which is suitable for the narrow spacing space between the bed legs; when the baby bed is adjusted to the lowest position, the elastic device of the telescopic pad is loosened to make the telescopic pad lengthen and placed in the inner bottom of the bed pocket, and the telescopic pad is tightened and covers the inner bottom of the bed pocket, which is suitable for the wider spacing space between the bed legs.

Description

Technical Field

[0001] The invention relates to a sleeping pad, in particular to a telescopic pad. Background Art

[0002] The bottom of the existing multi-level height-adjustable baby hammock is padded with a sleeping mat. The bed pocket of the baby hammock is made of a cloth cover, and the bed legs of the bed frame are narrow at the top and wide at the bottom. When the baby hammock is adjusted to the high position, the spacing between the left and right bed legs is narrow, so the mattress must be shortened to fit the spacing between the bed legs and be fixed; when the baby hammock is adjusted to the lowest position, the spacing between the left and right bed legs is wide, so the mattress must be extended to support and cover the bottom of the bed pocket, which cannot be achieved with a single mattress of fixed size, and only two sleeping mats can be used. Summary of the invention

[0003] The technical problem to be solved by the present invention is to provide a telescopic pad which can be stretched and extended as well as shortened.

[0004] The solutions to the above technical problems are:

[0005] A telescopic pad comprises a soft jacket and an elastic telescopic pad, wherein the soft jacket wraps the elastic telescopic pad; an elastic device for adjusting the length of the soft jacket body and the elastic telescopic pad is provided at one end of the soft jacket, and when the elastic device is tightened, the elastic telescopic pad is compressed and shortened by folding one end of the soft jacket, and the soft jacket is also shortened synchronously when it is folded; after tightening, the elastic telescopic pad tightens the soft jacket by its own rebound expansion force after compression; after the elastic device is completely loosened, the elastic telescopic pad automatically stretches the soft jacket by its own rebound expansion force, and the soft jacket body and the elastic telescopic pad are lengthened.

[0006] Further preferred technical solution: the elastic device is arranged horizontally at one end of the soft jacket; the elastic device includes a left half-connection part, a soft foldable part, and a right half-connection part, and the soft foldable part is located between the left half-connection part and the right half-connection part; the soft foldable part is a part of the soft jacket body; the left half-connection part is fixedly connected to or arranged on the soft jacket; the right half-connection part is fixedly connected to or arranged on the soft jacket; when the left half-connection part and the right half-connection part are completely loosened, they are separated and the soft foldable part is exposed, and the elastic telescopic pad automatically stretches and lengthens the soft jacket by its own rebound expansion force, and the soft jacket body also lengthens synchronously; after the left half-connection part and the right half-connection part are connected and tightened, the soft foldable part is wrapped, so that the elastic telescopic pad is squeezed and compressed to shorten, and at the same time, the soft jacket is also shortened synchronously after the soft foldable part is folded.

[0007] Further preferred technical solution: the left half connection part and the right half connection part are zippers, and the zipper is fixedly connected to one end of the soft jacket; the left half connection part occupies half of the zipper, and the right half connection part occupies the other half of the zipper. When the zipper is fully opened, the two halves are separated and moved away, and the zipper connection is tightened to wrap the soft foldable part.

[0008] Further preferred technical solution: the left half connecting part and the right half connecting part are Velcro, which are fixedly connected to one end of the soft outer shell; the left half connecting part occupies half of the Velcro, and the right half connecting part occupies the other half of the Velcro, and the two halves are separated when the Velcro is fully opened, and the foldable part of the soft outer shell is wrapped after the Velcro is bonded and tightened.

[0009] Further preferred technical solution: the left half connection part and the right half connection part are suction buckles, there are several suction buckles, and the suction buckles are fixedly connected to one end of the soft shell; the left half connection part occupies half of the suction buckle, and the right half connection part occupies the other half of the suction buckle. When the suction buckle is fully opened, the two halves are separated and moved away, and the suction buckles are combined, connected and tightened to wrap the foldable part of the software.

[0010] Further preferred technical solution: the left half connecting part is a button, the right half connecting part is a buttonhole, there are a plurality of buttons and buttonholes, the button is fixedly connected to one end of the soft jacket, and the buttonhole is also provided at one end of the soft jacket; the button is detached from the buttonhole and fully opened to separate and move away, and the button is fastened into the buttonhole and connected and tightened to wrap the soft foldable part.

[0011] Further preferred technical solution: the button and the buttonhole are at least 2 cm to 10 cm away from each other.

[0012] Further preferred technical solution: the adjustment spacing of the elastic device is 2 cm to 10 cm; the soft jacket and the elastic telescopic pad are rectangular; the elastic device is arranged horizontally and in parallel at one end of the soft jacket; a sponge pad is wrapped in the soft jacket, the sponge pad is rectangular, and the sponge pad is stacked and connected to the elastic telescopic pad; the soft jacket is a soft cloth cover; the length of the telescopic pad is 50 cm to 130 cm, and the width is 40 cm to 100 cm; the elastic telescopic pad is a hard elastic telescopic pad.

[0013] Further preferred technical solution: the shape of the sponge pad is the same as that of the elastic telescopic pad; the length of the sponge pad is equal to or slightly less than or slightly greater than the length of the elastic telescopic pad after expansion; the width of the sponge pad is equal to or slightly less than or greater than the width of the elastic telescopic pad; when the elastic telescopic pad is squeezed and compressed to shorten, the sponge pad is also squeezed and compressed to shorten synchronously; on the contrary, when the elastic telescopic pad rebounds and expands, the sponge pad also rebounds and expands to extend its length synchronously.

[0014] Further preferred technical solution: the elastic telescopic pad includes a base plate, and the front and rear sides of one end of the base plate are respectively provided with a telescopic adjustment limit long strip through hole, and the same end of the base plate is provided with at least two spring return grooves, and the two spring return grooves are positioned and fixed with return springs, and the length of the return spring is greater than the depth of the spring return groove; the same end of the base plate is connected to a telescopic adjustment shell, and one side of the telescopic adjustment shell is provided with a base plate groove, and the end of the base plate is inserted into the base plate groove. The telescopic adjustment shell wraps the end of the base plate through the base plate groove, and one end of the return spring presses on the bottom of the base plate groove, and the other end presses on the bottom of the spring return groove; the telescopic adjustment limit long strip through hole is passed through There is a nail body, and the two ends of the nail body are respectively fixed on the two sides of the corresponding telescopic adjustment shell; the telescopic adjustment shell is limited by a long strip through hole for telescopic adjustment, a nail body for anti-dropping, and left and right telescopic sliding limits; when tightening, one end of the soft jacket is folded to compress the telescopic adjustment shell and the return spring synchronously, and the base plate is inserted into a deeper position of the base plate groove, so that the elastic telescopic pad is shortened as a whole, and the return spring uses its own rebound expansion force after compression to tighten the telescopic adjustment shell, and the telescopic adjustment shell also tightens the soft jacket synchronously; when the tensioning device is completely loosened, the return spring uses its own rebound expansion force to automatically stretch out the telescopic adjustment shell, and the telescopic adjustment shell simultaneously stretches the soft jacket to lengthen.

[0015] Further preferred technical solution: the length of the reset spring is greater than the depth of the spring reset groove by 2 cm to 10 cm, and the adjusted distance of the elastic telescopic pad is also 2 cm to 10 cm.

[0016] The beneficial effect of the telescopic pad of the utility model is as follows: when the baby hammock is to be adjusted to a high position, the telescopic pad is first compressed and shortened and fixed in length and placed in the inner bottom of the bed pocket, and when adjusted to a high position, it fits the narrower spacing space between the bed legs; when the baby crib is adjusted to the lowest position, the elastic device of the telescopic pad is loosened to lengthen the telescopic pad and place it in the inner bottom of the bed pocket, and the telescopic pad is tightened and covers the inner bottom of the bed pocket, and fits the wider spacing space between the bed legs. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 This is a schematic diagram of the state in which the elastic device of the product of the present invention is a zipper and the zipper is opened;

[0018] Figure 2 This is a schematic diagram of the state in which the product of the present invention has a zipper as the elastic device and the zipper is closed and tightened;

[0019] Figure 3 This is a schematic diagram of the state in which the tightening device of the product of the present invention is a suction buckle and the suction buckle is opened;

[0020] Figure 4 This is a schematic diagram of the state in which the tightening device of the product of the present invention is a suction buckle, and the suction buckle is combined and tightened;

[0021] Figure 5This is a schematic diagram of the product of the present invention, in which the elastic device is a Velcro and the Velcro is opened;

[0022] Figure 6 This is a schematic diagram of the state in which the elastic device of the product of the present invention is Velcro and the Velcro is bonded and tightened;

[0023] Figure 7 This is an exploded view of the product of the present invention, in which the elastic device is a zipper and the whole product is opened;

[0024] Figure 8 This is an exploded view of the product of the present invention, in which the tightening device is a suction buckle and the whole product is opened;

[0025] Fig. 9 The elastic device of the product of the present invention is a Velcro, and the exploded view after the whole is opened;

[0026] Fig.10 It is a top view of the elastic telescopic pad of the product of the present invention after rebounding, expansion and stretching;

[0027] Fig.11 This is a top view of the elastic telescopic pad of the product of the present invention after compression;

[0028] Fig.12 It is a cross-sectional view of the product of the present invention;

[0029] Fig.13 for Fig.12 A partial enlargement of the left end.

[0030] Soft outer shell 1, elastic telescopic pad 2, tensioning device 3, left half connecting part 31, soft foldable part 32, right half connecting part 33, base plate 21, telescopic adjustment limit long strip through hole 22, spring return groove 23, return spring 24, telescopic adjustment shell 25, base plate groove 251, nail body 26, sponge pad 4. DETAILED DESCRIPTION

[0031] A telescopic pad comprises a soft jacket 1 and an elastic telescopic pad 2, wherein the soft jacket 1 wraps the elastic telescopic pad 2; an elastic device 3 for adjusting the length of the soft jacket 1 body and the elastic telescopic pad 2 is provided at one end of the soft jacket 1; when the elastic device 3 is tightened, one side of the soft jacket 1 is folded (folded) to compress and shorten the elastic telescopic pad 2, and when one side of the soft jacket 1 is folded (folded), it is also shortened synchronously, and the overall telescopic pad is shortened, so that the telescopic pad is suitable for being put into the inner bottom of a crib when the baby hammock is in a high position, and is stretched and covered with the inner bottom of the crib; after tightening, the elastic telescopic pad 2 uses its own rebound expansion force after compression to tighten the soft jacket 1, so that the elastic telescopic pad 2 is flat, stretched and not loose as a whole; after the elastic device 3 is completely loosened, the elastic telescopic pad 2 uses its own rebound expansion force to automatically stretch and lengthen the soft jacket 1, and the soft jacket 1 body and the elastic telescopic pad 2 are lengthened, and the overall telescopic pad is also lengthened. The length spacing is adjusted to 2 cm to 10 cm. The spacing adjusted by the elastic device 3 is 2 cm to 10 cm. The elastic device 3 is arranged horizontally and parallelly at one end of the soft jacket 1; the soft jacket 1 is a soft cloth cover; the soft jacket 1 and the elastic telescopic pad 2 are rectangular, and the length of the overall telescopic pad is 50 cm to 130 cm (preferably: 88 cm to 92 cm), and the width is 40 cm to 100 cm (preferably: 50.5 cm); the elastic telescopic pad 2 is a hard elastic telescopic pad 2.

[0032] The telescopic pad includes a buckle, which is connected with a screw. The buckle passes through the soft outer cover 1 and is tightened on the elastic telescopic pad 2 by the screw. There are at least four buckles for being clamped on the bed cover base frame of the baby hammock.

[0033] The soft outer shell 1 contains a sponge pad 4, which is rectangular and is connected to the elastic telescopic pad 2 in a stacked manner; the sponge pad 4 has the same shape as the elastic telescopic pad 2; the length of the sponge pad 4 is equal to or slightly less than the length of the elastic telescopic pad 2 after expansion. The width of the sponge pad 4 is equal to or slightly less than or greater than the width of the elastic telescopic pad 2; when the elastic telescopic pad 2 is squeezed and compressed to shorten, according to the properties of the sponge pad 4, the sponge pad 4 is also squeezed and compressed to shorten synchronously; on the contrary, when the elastic telescopic pad 2 rebounds and expands, the sponge pad also rebounds and expands to extend its length synchronously.

[0034] The elastic device 3 is arranged transversely at one end of the soft outer shell 1 . The elastic device 3 includes a left half connecting part 31, a soft foldable part 32, and a right half connecting part 33, wherein the soft foldable part 32 is located between the left half connecting part 31 and the right half connecting part 33; the soft foldable part 32 is a part of the main body of the soft jacket 1; the left half connecting part 31 is fixedly connected to or arranged on the soft jacket 1; the right half connecting part 33 is fixedly connected to or arranged on the soft jacket 1; when the left half connecting part 31 and the right half connecting part 33 are completely loosened, they are separated and moved away, the soft foldable part 32 is exposed, and the elastic telescopic pad 2 automatically stretches out / stretches and lengthens the soft jacket 1 by its own rebound expansion force, and the main body of the soft jacket 1 is also lengthened synchronously, and the telescopic pad is lengthened as a whole; after the left half connecting part 31 and the right half connecting part 33 are connected and tightened, the soft foldable part 32 is wrapped, so that the elastic telescopic pad 2 is squeezed and compressed to shorten, and at the same time, the soft jacket 1 is synchronously shortened after the soft foldable part 32 is folded, and the telescopic pad is shortened as a whole.

[0035] like Figure 1 , Figure 2 , Figure 7 As shown: the left half connection part 31 and the right half connection part 33 are zippers, and the zipper is fixedly connected to one end of the soft jacket 1; the left half connection part 31 occupies half of the zipper, and the right half connection part 33 occupies the other half of the zipper, and the soft foldable part 32 is located between the two halves of the zipper; when the zipper is fully opened, the two halves are separated and the soft foldable part 32 is exposed, and the zipper connection is tightened to wrap the soft foldable part 32.

[0036] like Figure 5 , Figure 6 , Fig. 9 As shown: the left half connecting part 31 and the right half connecting part 33 are Velcro, which are fixedly connected to one end of the soft jacket 1; the left half connecting part 31 occupies half of the Velcro, the right half connecting part 33 occupies the other half of the Velcro, and the soft foldable part 32 is located between the two halves of the Velcro; when the Velcro is fully opened, the two halves are separated and the soft foldable part 32 is exposed, and the Velcro is bonded and connected to wrap the soft foldable part 32.

[0037] like Figure 3 , Figure 4 , Figure 8 As shown: the left half connecting part 31 and the right half connecting part 33 are suction buckles (also known as male and female buckles), and there are several suction buckles, which are fixedly connected to one end of the soft jacket 1; the left half connecting part 31 occupies half of the suction buckle, and the right half connecting part 33 occupies the other half of the suction buckle, and the soft foldable part 32 is located between the two halves of the suction buckle; when the suction buckle is fully opened, the two halves are separated and the soft foldable part 32 is exposed, and the suction buckle is combined, connected and tightened to wrap the soft foldable part 32.

[0038] The left half connecting part 31 is a button, and the right half connecting part 33 is a buttonhole. There are a plurality of buttons and buttonholes. The button is fixedly connected to one end of the soft jacket 1, and the buttonhole is also arranged at the same end of the soft jacket 1; the soft foldable part 32 is located between the button and the buttonhole; the button is detached from the buttonhole and fully opened to separate and move away from the buttonhole, and the soft foldable part 32 is exposed. After the button is fastened into the buttonhole and connected and tightened, the soft foldable part 32 is wrapped.

[0039] The button and the buttonhole are at least 2 cm to 10 cm away, preferably 3 cm to 5 cm away.

[0040] like Figure 7 to Figure 13 As shown: the elastic telescopic pad 2 includes a base plate 21, and the front and rear sides of one end of the base plate 21 are respectively provided with a telescopic adjustment limit long strip through hole 22, and the same end of the base plate 21 is provided with at least two spring return grooves 23, and the two spring return grooves 23 are positioned and fixed with return springs 24, and the length of the return spring 24 is greater than the depth of the spring return groove 23; the same end of the base plate 21 is connected to a telescopic adjustment shell 25, and one side of the telescopic adjustment shell 25 is provided with a base plate groove 251, and the end of the base plate 21 is inserted into the base plate groove 251. The telescopic adjustment shell 25 wraps the end of the base plate 21 through the base plate groove 251, and one end of the return spring 24 presses on the bottom of the base plate groove 251, and the other end presses on the bottom of the spring return groove 23, so that the telescopic adjustment shell 25 has a return elasticity / elasticity; the telescopic adjustment limit long strip through hole 22 is connected to the base plate 21, and the return spring 24 is fixed to the two spring return grooves 23. There is a nail body 26, and the two ends of the nail body 26 are respectively fixed on the two sides of the corresponding telescopic adjustment shell 25; the telescopic adjustment shell 25 is prevented from falling off and telescopically sliding to the left and right through the telescopic adjustment limit long strip through hole 22 and the nail body 26; when tightening, one end of the soft jacket 1 is folded (folded) to compress the telescopic adjustment shell 25 and the return spring 24 synchronously, and the base plate 21 is inserted into a deeper position of the base plate groove 251, so that the elastic telescopic pad 2 is shortened as a whole, and the fixed length is tightened by the tensioning device, and the return spring 24 uses its own rebound expansion force after compression to tighten the telescopic adjustment shell 25, and the telescopic adjustment shell 25 also tightens the soft jacket 1 synchronously; when the tensioning device 3 is completely loosened, the return spring 24 uses its own rebound expansion force to automatically stretch out the telescopic adjustment shell 25, and the telescopic adjustment shell 25 synchronously stretches the soft jacket 1 out / opens and lengthens.

[0041] The length of the reset spring 24 is greater than the depth of the spring reset groove 23 by 2 cm to 10 cm, preferably 3 cm to 5 cm; the distance that the elastic telescopic pad 2 is adjusted is also 2 cm to 10 cm, preferably 3 cm to 5 cm. The thickness of the sponge pad 4 is 3 mm to 2 cm. The thickness of the elastic telescopic pad 2 is 2 mm to 8 mm. The tensioning device 3, the left half connecting part 31, the soft foldable part 32, the right half connecting part 33, the telescopic adjustment limit strip through hole 22, the spring reset groove 23, the reset spring 24, the telescopic adjustment shell 25, the base plate groove 251, and the nail body 26 are all arranged at the same end of the telescopic pad. The tensioning device 3 can also be a magnetic buckle or a hook buckle.

[0042] Specific structural embodiment:

[0043] like Figure 1 , Figure 2 , Figure 7 , Figure 10 to Figure 13As shown: a telescopic pad, the telescopic pad is rectangular, the elastic telescopic pad plate 2 is a hard elastic telescopic pad plate 2, the length of the telescopic pad after shortening is 88 cm, the length after rebound expansion and stretching is 92 cm, and the width is 50.5 cm; the telescopic pad comprises a soft jacket 1, an elastic telescopic pad plate 2, and a sponge pad 4, the soft jacket 1 wraps the elastic telescopic pad plate 2 and the sponge pad 4, the thickness of the sponge pad 4 is 5 mm, the thickness of the elastic telescopic pad plate 2 is 4 mm, the soft jacket 1 is a soft cloth cover, the sponge pad 4 is stacked and connected with the elastic telescopic pad plate 2, the length of the sponge pad is equal to the length of the elastic telescopic pad plate 2 after expansion, and the width of the sponge pad 4 is equal to the width of the elastic telescopic pad plate 2; the soft One end of the body jacket 1 is provided with an elastic device 3 for adjusting the length of the soft jacket 1 body and the elastic telescopic pad 2. The elastic device 3 includes a left half connecting portion 31, a soft foldable portion 32, and a right half connecting portion 33. The left half connecting portion 31 and the right half connecting portion 33 are zippers, and the zipper is fixedly connected to one end of the soft jacket 1; the left half connecting portion 31 occupies half of the zipper, and the right half connecting portion 33 occupies the other half of the zipper. The soft foldable portion 32 is located between the two halves of the zipper (the soft foldable portion 32 is the cloth cover body of the soft foldable part between the two halves of the zipper), and the spacing between the two halves of the zipper is 4 cm (the spacing between the two halves of the zipper is 4 cm, and the corresponding length of the telescopic pad after shortening is 88 cm , the length after rebound expansion and stretching is 92 cm); when the zipper is fully opened, the two halves are separated and the soft foldable part 32 is exposed, and the soft foldable part 32 is wrapped after the zipper connection is tightened; the elastic telescopic pad 2 includes a base plate 21, and the front and rear sides of one end of the base plate 21 are respectively provided with telescopic adjustment limit long strip through holes 22, and the same end of the base plate 21 is provided with at least two spring return grooves 23, and the two spring return grooves 23 are positioned and fixed with return springs 24, and the length of the return spring 24 is greater than the depth of the spring return groove 23; the same end of the base plate 21 is connected to a telescopic adjustment shell 25, and one side of the telescopic adjustment shell 25 is provided with a base plate groove 251, and the end of the base plate 21 Inserted into the substrate groove 251, the telescopic adjustment shell 25 wraps the end of the substrate 21 through the substrate groove 251, one end of the reset spring 24 presses on the bottom of the substrate groove 251, and the other end presses on the bottom of the spring reset groove 23, so that the telescopic adjustment shell 25 has a reset elasticity; the telescopic adjustment limit long strip through hole 22 is penetrated by a nail body 26, and the two ends of the nail body 26 are respectively fixed on the two sides of the corresponding telescopic adjustment shell 25; the telescopic adjustment shell 25 is prevented from falling off and telescopically sliding to the left and right through the telescopic adjustment limit long strip through hole 22 and the nail body 26; the side with the elastic device is the back side of the telescopic pad, and the other side is the front side of the telescopic pad; folding means flipping and folding.

[0044] When tightening, press down the elastic device end of the telescopic pad by hand, first compress the telescopic adjustment shell 25, insert the base plate 21 into the deeper position of the base plate groove 251, and then flip and fold the end of the soft jacket 1 by hand (that is, flip and fold from the front side of the telescopic pad to the back side of the telescopic pad). When the soft jacket 1 is flipped and folded, the sponge pad 4 will also be flipped and folded, and the sponge pad 4 will / will wrap the end face of the telescopic adjustment shell 25. The reset spring 24 is compressed synchronously, and then the telescopic pad is shortened to 88 cm as a whole and pressed tightly. The two halves of the zipper are closed, and then the zipper is combined and pulled up to connect. After the zipper is tightened, the soft foldable part 32 is wrapped, and the elastic device is tightened to a fixed length. The reset spring 24 uses its own rebound expansion force after compression to tighten the telescopic adjustment shell 25 to the outside in real time. The telescopic adjustment shell 25 also tightens the soft jacket 1 to the outside synchronously, so that the elastic telescopic pad 2 is flat, tight, and not loose as a whole, which is suitable for the telescopic pad to be placed in the inner bottom of the bed pocket when the baby hammock is in a high position, and is tightened and covered with the inner bottom of the bed pocket for use;

[0045] When the elastic device 3 is to be loosened, the zipper is opened, and the reset spring 24 uses its own rebound expansion force to automatically stretch out the telescopic adjustment shell 25. The telescopic adjustment shell 25 simultaneously stretches out / stretches the sponge pad 4 and the soft shell 1, and the two halves of the zipper are separated and moved away, and the soft foldable part 32 is exposed. The telescopic pad is lengthened to 92 cm as a whole, which is suitable for the baby crib to be adjusted to the lowest position and put into the inner bottom of the crib pocket. The telescopic pad is stretched tight and covers the inner bottom of the crib pocket, which is suitable for the wider spacing space between the bed legs.

[0046] One retractable pad of this product can meet the two certification requirements for baby hammocks in Europe.

[0047] The above is only a preferred embodiment of the present invention, and the protection scope of the present invention is not limited to the above embodiment. All technical solutions belonging to the principle of the present invention belong to the protection scope of the present invention. For those skilled in the art, some improvements and modifications made without departing from the principle of the present invention should also be regarded as the protection scope of the present invention.

Claims

1. A telescopic pad, characterized in that: The telescopic pad includes a soft jacket and an elastic telescopic pad, and the soft jacket wraps the elastic telescopic pad; one end of the soft jacket is provided with an elastic device for adjusting the length of the soft jacket body and the elastic telescopic pad, and when the elastic device is tightened, the elastic telescopic pad is compressed and shortened by folding one end of the soft jacket, and the soft jacket is also shortened synchronously when it is folded; after tightening, the elastic telescopic pad tightens the soft jacket by its own rebound expansion force after compression; after the elastic device is completely loosened, the elastic telescopic pad automatically stretches the soft jacket by its own rebound expansion force, and the soft jacket body and the elastic telescopic pad are lengthened; The elastic device is arranged transversely at one end of the soft jacket; the elastic device comprises a left half connection part, a soft foldable part and a right half connection part, and the soft foldable part is located between the left half connection part and the right half connection part; the soft foldable part is a part of the soft jacket body; the left half connection part is fixedly connected to or arranged on the soft jacket; the right half connection part is fixedly connected to or arranged on the soft jacket; when the left half connection part and the right half connection part are completely loosened, they are separated and away from each other, the soft foldable part is exposed, and the elastic telescopic pad automatically stretches and lengthens the soft jacket by its own rebound expansion force, and the soft jacket body also lengthens synchronously; after the left half connection part and the right half connection part are connected and tightened, the soft foldable part is wrapped, so that the elastic telescopic pad is squeezed and compressed to shorten, and at the same time, the soft jacket is also shortened synchronously after the soft foldable part is folded; The elastic telescopic pad includes a base plate, and the front and rear sides of one end of the base plate are respectively provided with a telescopic adjustment limit long strip through hole, and the same end of the base plate is provided with at least two spring return grooves, and the two spring return grooves are positioned and fixed with return springs, and the length of the return spring is greater than the depth of the spring return groove; the same end of the base plate is connected to a telescopic adjustment shell, and one side of the telescopic adjustment shell is provided with a base plate groove, and the end of the base plate is inserted into the base plate groove. The telescopic adjustment shell wraps the end of the base plate through the base plate groove, and one end of the return spring presses on the bottom of the base plate groove, and the other end presses on the bottom of the spring return groove; the telescopic adjustment limit long strip through hole is connected with a nail body, and the nail body The two ends are respectively fixed on the two sides of the corresponding telescopic adjustment shell; the telescopic adjustment shell is limited by the telescopic adjustment limit long strip through hole, the nail body anti-dropping and the left and right telescopic sliding limit; when tightening, one end of the soft jacket is folded to compress the telescopic adjustment shell and the return spring synchronously, and the substrate is inserted into a deeper position of the substrate groove to shorten the elastic telescopic pad as a whole, and the return spring uses its own rebound expansion force after compression to tighten the telescopic adjustment shell, and the telescopic adjustment shell also tightens the soft jacket synchronously; when the tensioning device is completely loosened, the return spring uses its own rebound expansion force to automatically stretch out the telescopic adjustment shell, and the telescopic adjustment shell synchronously stretches the soft jacket to lengthen.

2. A telescopic pad according to claim 1, characterized in that: The left half connection part and the right half connection part are zippers, which are fixedly connected to one end of the soft jacket; the left half connection part occupies half of the zipper, and the right half connection part occupies the other half of the zipper. When the zipper is fully opened, the two halves are separated and the soft foldable part is wrapped after the zipper connection is tightened.

3. A telescopic pad according to claim 1, characterized in that: The left half connection part and the right half connection part are Velcro, which are fixedly connected to one end of the soft outer shell; the left half connection part occupies half of the Velcro, and the right half connection part occupies the other half of the Velcro. When the Velcro is fully opened, the two halves are separated and the soft foldable part is wrapped after the Velcro is bonded and tightened.

4. The telescopic pad according to claim 1, characterized in that: The left half connection part and the right half connection part are suction buckles, and there are several suction buckles, which are fixedly connected to one end of the soft outer shell; the left half connection part occupies half of the suction buckle, and the right half connection part occupies the other half of the suction buckle. When the suction buckle is fully opened, the two halves are separated and moved away, and the suction buckles are combined, connected and tightened to wrap the foldable part of the soft outer shell.

5. The telescopic pad according to claim 1, characterized in that: The left half connecting part is a button, and the right half connecting part is a buttonhole. There are a plurality of buttons and buttonholes. The button is fixedly connected to one end of the soft jacket, and the buttonhole is also arranged at one end of the soft jacket. The button is separated from the buttonhole and fully opened to separate and move away from it. After the button is fastened into the buttonhole and connected and tightened, the soft foldable part is wrapped.

6. A telescopic pad according to claim 5, characterized in that: The button and the buttonhole are at least 2 cm to 10 cm away from each other.

7. The telescopic pad according to claim 1, characterized in that: The adjustment spacing of the elastic device is 2 cm to 10 cm; the soft jacket and the elastic telescopic pad are rectangular; the elastic device is arranged horizontally and parallelly at one end of the soft jacket; a sponge pad is wrapped in the soft jacket, the sponge pad is rectangular, and the sponge pad is stacked and connected with the elastic telescopic pad; the soft jacket is a soft cloth cover; the length of the telescopic pad is 50 cm to 130 cm, and the width is 40 cm to 100 cm; the elastic telescopic pad is a hard elastic telescopic pad; the shape of the sponge pad is the same as that of the elastic telescopic pad; the length of the sponge pad is equal to or slightly less than or slightly greater than the length of the elastic telescopic pad after expansion; the width of the sponge pad is equal to or slightly less than or greater than the width of the elastic telescopic pad; when the elastic telescopic pad is squeezed and compressed to shorten, the sponge pad is also squeezed and compressed to shorten synchronously, on the contrary, when the elastic telescopic pad rebounds and expands, the sponge pad also rebounds and expands to extend its length synchronously.

8. The telescopic pad according to claim 1, characterized in that: The length of the reset spring is greater than the depth of the spring reset groove by 2 cm to 10 cm, and the adjusted distance of the elastic telescopic pad is also 2 cm to 10 cm.

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