CN219353262U - Back cushion - Google Patents

Abstract

The utility model provides a back pad, which comprises a bottom plate, wherein a first protruding part and a second protruding part are arranged on the bottom plate, a second gap is formed between the first protruding part and the second protruding part, and a first gap is formed between the first protruding part and between the second protruding part and the first protruding part; a groove is formed in one side, close to the first gap, of the first protruding part; the user is when walking or motion the first bellying of user's back extrusion for first bellying and second bellying receive outside extrusion force, thereby make the heat that produces on the first bellying one convenient follow recess, first clearance outflow, on the other hand upwards flow through recess and second clearance, when not extruding first bellying simultaneously, outside cold air can enter into in first clearance and the second clearance then mix the cooling with inside hot air, make also increase the circulation of hot air current when carrying out mixed heat dissipation through the cold air current, thereby make the radiating effect good.

Description

Back cushion

Technical Field

The utility model relates to the field of bags, in particular to a back cushion.

Background

The knapsack often uses in daily life, and the knapsack is on one's body for a long time, because knapsack and human back closely laminate, leads to the back airtight, leads to the back to sweat very hot, and is uncomfortable very much, especially in hot summer, the prickly heat is easily perceived on the back, and knapsack radiating effect on the present market is not good.

The utility model discloses a novel knapsack at chinese application number 201921757376.1, the publication day is 2020.5.26, including the knapsack body, the braces are all fixed to the both sides portion of knapsack body, a side of knapsack body is equipped with the inner wrapping layer, the inner wrapping layer is established to the screen cloth material, be equipped with the back of a plurality of symmetric distribution on the inner wrapping layer and fill up, the back of the body is established to protruding structure, be equipped with the clearance between the back of the body, the knapsack body is kept away from a side of inner wrapping layer is equipped with the surrounding layer, fixed being equipped with solar panel on the surrounding layer, the upper portion of the surrounding layer of knapsack body is equipped with the knapsack mouth, be located on the surrounding layer the below of solar panel is equipped with the reflection of light cloth.

Referring to fig. 1; a transverse gap is formed between two back pads at one side of the backpack body, and a longitudinal gap is formed between the back pads at two sides; the air flow flows into the longitudinal gap from the transverse gap and then flows out from the bottom of the longitudinal gap, and the air flow cannot flow poorly between adjacent back pads; and because the heat on the back cushion is mainly concentrated at the position attached to the back, and because the weight of the hot gas is heavier, the hot gas generally flows upwards, and because the bottom is provided with a channel, the heat at the position attached to the waist of a user at the bottom can only flow out from two sides, and the hot gas can not flow out from a bottom notch due to the weight, so that the flow speed of hot gas flow is low, and the heat dissipation effect is not ideal.

Disclosure of Invention

The utility model provides a back pad which can protect the waist and improve the heat dissipation effect.

In order to achieve the above purpose, the technical scheme of the utility model is as follows: the back cushion comprises a bottom plate, wherein a first bulge part and a second bulge part are arranged on the bottom plate, the second bulge part comprises more than one first bulge part and more than one second bulge part, the more than one first bulge part is arranged on one side of the bottom plate, the more than one second bulge part is arranged on the other side of the bottom plate, the first bulge part is arranged at the bottom of the bottom plate, the first bulge part and the second bulge part are symmetrically arranged relative to the vertical axis of the bottom plate, a second gap is formed between the first bulge part and the second bulge part, and a first gap is formed between the first bulge part and between the second bulge part and the first bulge part; a groove is formed in one side, close to the first gap, of the first protruding part; the groove is positioned between the two first gaps; the distance between the first protruding piece and the bottom of the groove and the distance between the second protruding piece and the bottom of the groove are larger than the width of the first gap; one end of the first gap, which is far away from the groove, is upwards and outwards inclined; the first gap and the second gap are communicated with the groove, and the axis of the second groove and the axis of the groove are in the same straight line.

Above setting, the back cushion is laminated mutually with the user waist when using, then user's back extrusion first bellying when the user is walking or moving, make first bellying and second bellying receive outside extrusion force, because the bottom of recess is sealed by first bellying, thereby make the heat that produces on the first bellying one convenient follow recess, first clearance outflow, on the other hand upwards flow through recess and second clearance, when not extruding first bellying, outside cold air can enter into in first clearance and the second clearance then with inside hot air mix the cooling, make and also increased the circulation of hot air flow when carrying out mixed heat dissipation through the cold air current, thereby make the radiating effect good, simultaneously first bellying sets up in the bottom of bottom plate, thereby make the user use can laminate mutually with human waist, thereby can realize the function of waist support.

Further, a third protruding part is also arranged on the bottom plate; the third protruding part comprises a third protruding part and a fourth protruding part; the third bulge is arranged on one side of the bottom plate, which is close to the first bulge, the fourth bulge is arranged on one side of the bottom plate, which is close to the second bulge, a third gap is formed between the third bulge and the first bulge and between the fourth bulge and the second bulge, and a fourth gap is formed between the third bulge and the fourth bulge; the third gap and the fourth gap are communicated with the second gap.

The air flow enters the second gap through the third gap; the air flow enters the second gap through the fourth gap, so that the flowing effect of the air flow is further improved, and the heat dissipation effect is improved.

Further, the width of the second gap gradually decreases in the direction in which the third gap approaches the first gap. This accelerates the flow of air out of the second gap.

Further, the width of the fourth gap gradually decreases in a direction from the third gap to the third gap. This accelerates the flow of air out of the fourth gap.

Further, the first protrusion, the second protrusion, the third protrusion, the fourth protrusion, and the second protrusion have the same protrusion height.

Further, the first gap is the same size as the third gap.

Further, the second gap is the same size as the fourth gap.

Further, a distance is arranged between the two ends of the first protruding portion and the two ends of the bottom plate, and a distance is arranged between the edge, close to the bottom plate, of the second protruding portion and the edge, corresponding to the bottom plate.

Above setting, through setting up the interval between the edge of first bellying and the edge of second bellying and the edge of bottom plate to make the heat can dispel the heat along the interval, increase the heat dissipation passageway.

Further, a minimum distance of the second gap between the first protruding member and the second protruding member is smaller than a notch width of the groove.

Above setting for in first protruding piece and the second protruding piece extend to the notch width of recess, thereby make the hot air flow through the recess carry out better reposition of redundant personnel in the one end of first protruding piece get into first clearance on the one hand, in on the other hand get into the second clearance, the radiating effect is better.

Further, the axis of the second gap, the axis of the fourth gap, and the axis of the groove are on the same straight line.

Above setting for the air current can directly enter into outside through recess, second clearance and fourth clearance, makes the radiating effect good.

Drawings

Fig. 1 is a schematic diagram of the prior art.

Figure 2 is a schematic flow diagram of the gas stream in the present utility model,

figure 3 is a schematic view of the present utility model,

fig. 4 is a side view of the present utility model.

Fig. 5 is a use state diagram of the present utility model.

Detailed Description

The utility model is described in further detail below with reference to the drawings and the detailed description.

As shown in fig. 2-5; a back cushion comprises a bottom plate 1, a first protruding part 2, a second protruding part 3 and a third protruding part 4 are arranged on the bottom plate 1, the second protruding part 3 is located above the first protruding part 2, and the third protruding part 4 is located above the second protruding part 3.

The first bulge part 2 is positioned at the bottom of the bottom plate 1; the second protruding part 3 comprises one or more first protruding members 31 and one or more second protruding members 32, and in the present embodiment, both the first protruding member 31 and the second protruding member 32 are provided with one. The first protruding member 31 is provided on one side of the base plate 1, and the second protruding member 32 is provided on the other side of the base plate 1; the first protruding piece 31 and the second protruding piece 32 are symmetrically arranged with respect to the vertical axis of the base plate 1.

A first gap 5 is formed between the first protruding member 31 and the first protruding portion 2, and between the second protruding member 32 and the first protruding portion 2; a groove 21 is arranged on one side of the first bulge part 2 close to the first gap 5; the groove 21 is positioned between the two first gaps 5; the distance between the first protrusion 31 and the bottom of the recess 21 and the distance between the second protrusion 32 and the bottom of the recess 21 are both larger than the width of the first gap 5.

A second gap 33 is formed between the first protruding piece 31 and the second protruding piece 32, and one end of the first gap 5 away from the groove 21 is obliquely arranged upwards and outwards; the first gap 5, the second gap 33 are in communication with the groove 21, and the axis of the second groove 33 is on the same line as the axis of the groove 21.

The third boss 4 includes a third boss 41 and a fourth boss 42; the third protruding member 41 is provided on the side of the base plate 1 close to the first protruding member 31, the fourth protruding member 42 is provided on the side of the base plate 1 close to the second protruding member 32, and the third protruding member 41 and the fourth protruding member 42 are symmetrically provided with respect to the vertical direction axis of the base plate 1.

A third gap 6 between the third protruding member 41 and the first protruding member 31, and between the fourth protruding member 42 and the second protruding member 32, the first gap 5 being the same size as the third gap 6; a fourth gap 43 is formed between the third protruding member 41 and the fourth protruding member 42; the second gap 33 is the same size as the fourth gap 43; the third gap 6 and the fourth gap 43 communicate with the second gap 33. The third gap 6 is arranged obliquely upward and outward at one end far away from the groove 21; the axis of the fourth gap 43 is collinear with the axis of the recess 21.

The back cushion is fit with the waist of a user when in use, then the back of the user presses the first bulge 2 when the user walks or moves, so that the first bulge 2 and the second bulge 3 are subjected to outward extrusion force, the bottom of the groove 21 is sealed by the first bulge 2, so that heat generated on the first bulge 2 conveniently flows out of the groove 21 and the first gap 5, on the other hand, the heat flows upwards through the groove 51 and the second gap 33, and meanwhile, when the first bulge 2 is not pressed, external cold air can enter the first gap 5 and the second gap 33 and then is mixed with internal hot air for cooling, so that the circulation of hot air flow is increased when the mixed heat dissipation is carried out through cold air flow, so that the heat dissipation effect is good, and meanwhile, the first bulge 2 is arranged at the bottom of the bottom plate, so that the user can fit with the waist of a human body, and the waist protecting function can be realized. While the axis of the second gap, the axis of the fourth gap and the axis of the groove are on the same straight line. The air flow can directly enter the outside through the grooves, the second gaps and the fourth gaps, and the heat dissipation effect is good.

In the present embodiment, the width of the second gap 33 gradually decreases in the direction in which the third gap 6 approaches the first gap 5, so that the air flow from the second gap 33 can be accelerated; the width of the fourth gap 43 gradually decreases in a direction away from the third gap 6 toward the third gap 6, so that the flow of air from the fourth gap 43 can be accelerated.

In the present embodiment, the projection heights of the first projection 31, the second projection 32, the third projection 41, the fourth projection 42, and the second projection 3 are the same.

Referring to fig. 5, the back pad is attached to the back of the backpack; in this embodiment, a space is provided between two ends of the first protruding portion 2 and two ends of the bottom plate 1, and a space is provided between an edge of the second protruding portion 3, which is close to the bottom plate 1, and an edge corresponding to the bottom plate 1; by providing a space between the edges of the first protrusions 2 and the edges of the second protrusions 3 and the edges of the bottom plate 1, heat can be dissipated along the space, and a heat dissipation channel is increased.

In the present embodiment, the minimum distance of the second gap between the first protruding member 31 and the second protruding member 32 is smaller than the notch width of the recess 21. The first protruding piece 31 and the second protruding piece 32 extend into the width of the notch of the groove 21, so that the hot air flow passing through the groove 21 can be better split at one end of the first protruding piece 31 and enter the first gap 5 on one hand and enter the second gap 33 on the other hand, and the heat dissipation effect is better.

Claims (10)

1. The utility model provides a back pad, includes the bottom plate, is equipped with first bellying and second bellying on the bottom plate, and the second bellying includes more than one first bellying and more than one second bellying, and first bellying sets up in one side of bottom plate, and the second bellying sets up the opposite side at the bottom plate, forms the second clearance between first bellying and the second bellying, its characterized in that: the first bulge is positioned at the bottom of the bottom plate, one first bulge and one second bulge are symmetrically arranged relative to the vertical axis of the bottom plate, and a first gap is formed between the first bulge and between the second bulge and the first bulge; a groove is formed in one side, close to the first gap, of the first protruding part; the groove is positioned between the two first gaps; the distance between the first protruding piece and the bottom of the groove and the distance between the second protruding piece and the bottom of the groove are larger than the width of the first gap; one end of the first gap, which is far away from the groove, is upwards and outwards inclined; the first gap and the second gap are communicated with the groove, and the axis of the second groove and the axis of the groove are in the same straight line.

2. A back pad according to claim 1, wherein: a third protruding part is also arranged on the bottom plate; the third protruding part comprises a third protruding part and a fourth protruding part; the third bulge is arranged on one side of the bottom plate, which is close to the first bulge, the fourth bulge is arranged on one side of the bottom plate, which is close to the second bulge, a third gap is formed between the third bulge and the first bulge and between the fourth bulge and the second bulge, and a fourth gap is formed between the third bulge and the fourth bulge; the third gap and the fourth gap are communicated with the second gap.

3. A back pad according to claim 2, wherein: the width of the second gap gradually decreases along the direction in which the third gap approaches the first gap.

4. A back pad according to claim 2, wherein: the width of the fourth gap gradually decreases in a direction from the third gap to the third gap.

5. A back pad according to claim 2, wherein: the first, second, third, fourth and second bosses have the same boss height.

6. A back pad according to claim 2, wherein: the first gap is the same size as the third gap.

7. A back pad according to claim 2, wherein: the second gap is the same size as the fourth gap.

8. A back pad according to claim 1, wherein: a distance is arranged between the two ends of the first protruding portion and the two ends of the bottom plate, and a distance is arranged between the edge, close to the bottom plate, of the second protruding portion and the edge, corresponding to the bottom plate.

9. A back pad according to claim 1, wherein: the minimum distance of the second gap between the first protruding piece and the second protruding piece is smaller than the notch width of the groove.

10. A back pad according to claim 2, wherein: the axis of the second gap, the axis of the fourth gap and the axis of the groove are positioned on the same straight line.