Novel ground sponge pit

Abstract

The utility model relates to a novel ground sponge pit, which comprises a bottom layer, a middle layer and a covering layer, the bottom layer comprises a bottom layer inner tube and a bottom layer jacket sleeved outside the bottom layer inner tube, and the bottom layer inner tube is a bottom layer pad formed by vertically stacking and thermally connecting a plurality of layers of XPE (cross-linked polyethylene) strips which are staggered horizontally and longitudinally; the middle layer comprises a middle-layer inner tube and a middle-layer jacket sleeved outside the middle-layer inner tube; the middle-layer inner tube is a middle-layer pad formed by stacking and bonding a plurality of layers of sponge strips which are transversely and longitudinally staggered up and down; the covering layer comprises a covering inner tube and a covering outer sleeve arranged outside the covering inner tube in a sleeving mode. The covering inner tube is a covering pad formed by two solid soft thin sponge layers which are stacked up and down. The side face of the bottom-layer outer sleeve is connected with the side face of the middle-layer outer sleeve through a lock catch, the circumference of the upper surface of the bottom-layer outer sleeve is connected with the circumference of the lower bottom face of the middle-layer outer sleeve through a hook-and-loop fastener, and the circumference of the upper surface of the middle-layer outer sleeve is connected with the circumference of the lower bottom face of the covering outer sleeve through a hook-and-loop fastener. The cushion is good in overall stability, convenient to install, capable of being rapidly installed, comfortable in cushion surface and appropriate in elasticity.

Description

Technical Field

[0001] The utility model relates to the technical field of gymnastics training protective equipment, in particular to a novel ground sponge pit. Background Art

[0002] The sponge pit is usually set up in a dedicated gymnastics hall. Currently, most of the sponge pits on the market are underground, with a depth of 1.2-2 meters. A flexible cushion is laid at the bottom of the pit. In addition, the four walls and the upper edge of the pit should be cushioned. The sponge pit is filled with small pieces of sponge. This can increase the cushioning force of the practitioner landing and play a role in protecting the trainee. The size of the pit area depends on the area of ​​the gymnastics room. Horizontal bars, rings, high and low bars and other equipment are installed in the middle and around the pit (skill tumbling and vaulting can be directly placed in the pit). The sponge pit needs to be dug, waterproofed, hardened, and soft-packed on the sides and bottom according to the depth of the pit.

[0003] At present, sponge pits on the market have the following disadvantages:

[0004] 1. The location, size, depth and other aspects of the underground sponge pit must be considered at the beginning of the venue construction;

[0005] 2. The construction cost is high, and the size cannot be moved or changed after installation;

[0006] 3. Dust is not easy to clean.

[0007] If an underground sponge pit is not set up, sponge mats will be laid instead. Generally, multiple sponge mats are stacked to cooperate with different sports. Such stacked sponge mats are prone to relative sliding, making the athlete unstable when landing. On the other hand, the support is poor, resulting in weakened cushioning ability and reducing the comfort of the athlete's landing. Utility Model Content

[0008] In view of the deficiencies in the prior art, the utility model provides a novel ground sponge pit with good overall stability, convenient and quick installation, comfortable cushion surface and appropriate elasticity.

[0009] The utility model is realized through the following technical solutions:

[0010] A new type of above-ground sponge pit is provided, comprising a bottom layer, a middle layer and a covering layer arranged in sequence from bottom to top.

[0011] The bottom layer includes a bottom inner tube and a bottom outer layer sleeved outside the bottom inner tube. The bottom inner tube is a bottom pad formed by stacking and heat-sealing multiple layers of XPE strips staggered horizontally and vertically.

[0012] The middle layer includes a middle inner tube and a middle outer cover sleeved outside the middle inner tube. The middle inner tube is a middle pad formed by stacking and bonding multiple layers of sponge strips staggered horizontally and vertically.

[0013] The covering layer includes a covering inner tube and a covering outer cover sleeved on the outer surface of the covering inner tube, the covering inner tube includes two solid soft thin sponge layers stacked up and down, and each solid soft thin sponge layer is sleeved with the covering outer cover;

[0014] The side of the bottom jacket is connected to the side of the middle jacket by a lock buckle, and the upper surface of the bottom jacket and the lower bottom surface of the middle jacket are connected to each other in a circumferential direction, and the upper surface of the middle jacket and the lower bottom surface of the covering jacket are connected in a circumferential direction by Velcro.

[0015] Furthermore, the sides of the bottom layer jacket and the middle layer jacket are all made of PVC woven fabrics, and the upper surface and the lower bottom surface are both mesh fabrics; the covering jacket is made of four-sided stretch knitted fabric.

[0016] The jacket is made of PVC woven fabric all around, and mesh fabric is used on the top and bottom to facilitate the effective discharge of air. The four-sided stretch knitted fabric is skin-friendly, which increases the comfort of landing and is breathable.

[0017] Furthermore, each solid soft and thin sponge layer is provided with a covering jacket on the outside, and the covering jackets of the two solid soft and thin sponge layers are connected by Velcro on the contact surface through a protective strap.

[0018] The covering jackets of the two solid soft and thin sponge layers are connected by means of protective plates and need to be assembled on site. The bottom edge of the covering layer is connected to the middle pad with soft Velcro, making the entire sponge pit a whole, increasing the overall stability, and not easy to slide when subjected to a large impact force, thereby enhancing safety.

[0019] Furthermore, the density of the solid soft thin sponge layer is 23-27 kg / m 3 , tensile strength ≥ 0.08Mpa, elongation at break ≥ 145%.

[0020] In addition to ensuring comfort and protection functions, it also has anti-stretching and anti-tearing properties, which helps to increase its service life.

[0021] Further, the density of each layer of interlaced XPE strips in the bottom layer pad is greater than the density of each layer of interlaced sponge strips in the middle layer pad.

[0022] The number and density of XPE strips in the bottom pad are greater than the number and density of sponge strips in the middle pad. The three-dimensional grid structure woven with XPE strips is used as support to effectively ensure the overall stability. The three-dimensional grid structure woven with sponge strips plays a good role in buffering and energy absorption, thereby improving comfort.

[0023] Furthermore, the bottom surface of the lowest XPE strip of the bottom pad is vertically connected to an elastic column, the lower end of the elastic column is connected to a suction cup that passes through the bottom jacket, and a support column is fixed between adjacent suction cups of the lowest XPE strip, and the total height of the suction cup and the elastic column is higher than the height of the support column.

[0024] The elastic column can be used for supporting and buffering. Together with the suction cup at the bottom, it can increase the overall friction on the ground, so that the whole remains stable and does not move relative to the ground. The support column can play a certain supporting role, so that the suction cup at the bottom will not flip over due to excessive force and lose its adsorption effect, thereby ensuring overall stability and enhancing anti-slip force.

[0025] Beneficial effects of the utility model:

[0026] The utility model is composed of a sponge pit bottom layer, a sponge pit middle layer, and a sponge pit covering layer. It has a simple structural process, can achieve rapid assembly of the venue, has uniform elasticity, and is overall stable and reliable. The position in the venue can be moved according to the equipment layout. It is not only easy to breathe, but also improves the comfort of use. It is easy to install, has a comfortable cushion surface, and has appropriate elasticity. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] Figure 1 It is a top view of embodiment 1 of the utility model.

[0028] Figure 2 It is a side view of embodiment 1 of the utility model.

[0029] Figure 3 for Figure 1 Cross-section view of AA.

[0030] Figure 4 It is a top view of the bottom jacket of Example 1 of the utility model.

[0031] Figure 5 It is a cross-sectional schematic diagram of the bottom inner tube of Example 1 of the utility model.

[0032] Figure 6 This is a schematic structural diagram of a middle-layer outer jacket according to Embodiment 1 of the present invention.

[0033] Figure 7 It is a schematic cross-sectional view of the middle inner tube of Example 1 of the utility model.

[0034] Figure 8 This is a schematic structural diagram of the covering jacket of Example 1 of the utility model.

[0035] Fig. 9 It is a cross-sectional schematic diagram of the covered inner tube of Example 1 of the utility model.

[0036] Fig.10 It is a cross-sectional schematic diagram of the bottom inner tube in Example 2 of the utility model.

[0037] As shown in the figure:

[0038] 1. Covering layer, 1-1. Solid soft and thin sponge layer, 1-2. Covering jacket, 2. Middle layer, 2-1. Middle layer inner tube, 2-2. Middle layer jacket, 2-3. Sponge strip, 3. Bottom layer, 3-1. Bottom layer inner tube, 3-2. Bottom layer jacket, 3-3. XPE strip, 4. Lock buckle, 5. Velcro, 6. Protective plate, 7. Elastic column, 8. Suction cup, 9. Support column. DETAILED DESCRIPTION

[0039] In order to clearly illustrate the technical features of this solution, this solution is described below through a specific implementation method.

[0040] Embodiment 1:

[0041] A novel above-ground sponge pit comprises a bottom layer 3, a middle layer 2 and a covering layer 1 which are arranged in sequence from bottom to top.

[0042] The bottom layer 3 includes a bottom inner tube 3-1 and a bottom outer shell 3-2 sleeved outside the bottom inner tube 3-1. The bottom inner tube 3-1 is a bottom pad formed by stacking and heat-sealing multiple layers of XPE strips 3-3 staggered horizontally and vertically. The bottom pad formed by heat-sealing the XPE strips 3-3 is not only stable in compression and not easy to oxidize, but also effectively saves raw materials and can protect athletes from falling safely.

[0043] The middle layer 2 comprises a middle inner tube 2-1 and a middle outer cover 2-2 sleeved outside the middle inner tube 2-1. The middle inner tube 2-1 is a middle pad formed by stacking and bonding multiple layers of sponge strips 2-3 staggered horizontally and vertically.

[0044] The density of each layer of staggered XPE strips 3-3 in the bottom layer pad is greater than the density of each layer of staggered sponge strips 2-3 in the middle layer pad.

[0045] The covering layer 1 comprises a covering inner tube and a covering outer jacket 1-2 sleeved on the outer surface of the covering inner tube. The covering inner tube comprises two solid soft thin sponge layers 1-1 stacked up and down, and each solid soft thin sponge layer 1-1 is sleeved with a covering outer jacket.

[0046] The side of the bottom jacket 3-2 is connected to the side of the middle jacket 2-2 by a lock buckle 4, and the upper surface of the bottom jacket 3-2 and the lower bottom surface of the middle jacket 2-2, as well as the upper surface of the middle jacket 2-2 and the lower bottom surface of the covering jacket 1-1 are connected by Velcro 5, so that the pads are connected to form a whole, with good overall stability, easy installation, quick installation, comfortable pad surface and appropriate elasticity.

[0047] The sides of the bottom jacket 3-2 and the middle jacket 2-2 are all made of PVC woven fabric, and the upper surface and the lower bottom surface are both mesh fabrics; the covering jacket 1-2 is a four-sided elastic knitted fabric to increase the comfort of landing. The two covering layers 1 are connected by protective flaps and need to be assembled on site. The bottom of the covering layer 1 is connected to the middle layer 2 with soft Velcro, making the entire sponge pit a whole, increasing the overall stability, and not easy to slide when subjected to a large impact force, thereby enhancing safety.

[0048] Each solid soft thin sponge layer 1-1 is covered with a cover 1-2, and the cover 1-2 of the two solid soft thin sponge layers 1-1 is connected on the contact surface by a protective strap 6. The protective strap 6 is connected to increase stability, is not easy to slide when subjected to a large impact force, and enhances safety.

[0049] The density of the solid soft thin sponge layer 1-1 is 23-27 kg / m 3 , tensile strength ≥ 0.08Mpa, elongation at break ≥ 145%. In addition to ensuring comfort and protection functions, it also has anti-stretching and anti-tearing properties, which is convenient for increasing service life.

[0050] Embodiment 2:

[0051] In this embodiment, based on the embodiment 1, an elastic column 7 is vertically connected to the bottom surface of the bottom XPE strip 3-3 of the bottom pad, and the lower end of the elastic column 7 is connected to a suction cup 8 that passes through the bottom jacket 3-2. A support column 9 is also fixed between adjacent suction cups 8 of the bottom XPE strip 3-3, and the total height of the suction cup 8 and the elastic column 7 is higher than the height of the support column 9.

[0052] Compared with Example 1, the bottom surface of the base pad in this embodiment can be firmly adsorbed on the ground through the suction cup 8 connected to the lower end of the elastic column 7, which further enhances the overall stability and effectively prevents the displacement of the base layer. At the same time, with the supporting effect of the support column 9, it can prevent the suction cup 8 from being squeezed, deformed, flipped and lost vacuum due to excessive upper and lower pressures, thereby effectively ensuring the adsorption force of the suction cup 8 and improving the stability of use.

[0053] Of course, the above description is not limited to the above examples. The technical features not described in the present invention can be achieved by or by adopting the existing technology, which will not be repeated here. The above embodiments and drawings are only used to illustrate the technical scheme of the present invention and are not limitations of the present invention. The present invention is described in detail with reference to the preferred implementation methods. Ordinary technicians in this field should understand that the changes, modifications, additions or substitutions made by ordinary technicians in this technical field within the essential scope of the present invention do not deviate from the purpose of the present invention and should also fall within the scope of protection of the claims of the present invention.

Claims

1. A new type of ground sponge pit, characterized by: It includes the bottom layer, middle layer and covering layer arranged in sequence from bottom to top. The bottom layer includes a bottom inner tube and a bottom outer layer sleeved outside the bottom inner tube. The bottom inner tube is a bottom pad formed by stacking and heat-sealing multiple layers of XPE strips staggered horizontally and vertically. The middle layer includes a middle inner tube and a middle outer cover sleeved outside the middle inner tube. The middle inner tube is a middle pad formed by stacking and bonding multiple layers of sponge strips staggered horizontally and vertically. The covering layer includes a covering inner tube and a covering outer cover sleeved on the outer surface of the covering inner tube, the covering inner tube includes two solid soft thin sponge layers stacked up and down, and each solid soft thin sponge layer is sleeved with the covering outer cover; The side of the bottom jacket is connected to the side of the middle jacket by a lock buckle, and the upper surface of the bottom jacket and the lower bottom surface of the middle jacket are connected to each other in a circumferential direction, and the upper surface of the middle jacket and the lower bottom surface of the covering jacket are connected in a circumferential direction by Velcro.

2. The novel above-ground sponge pit according to claim 1 is characterized in that: The sides of the bottom layer jacket and the middle layer jacket are all made of PVC woven fabrics, and the upper surface and the lower bottom surface are both mesh fabrics; the cover jacket is made of four-sided stretch knitted fabric.

3. The novel above-ground sponge pit according to claim 1 is characterized in that: Each solid soft and thin sponge layer is covered with a covering jacket on the outside, and the covering jackets of the two solid soft and thin sponge layers are connected on the contact surface by hook and loop fasteners of protective straps.

4. The novel above-ground sponge pit according to claim 1 or 3, characterized in that: The density of the solid soft thin sponge layer is 23~27kg / m 3 , tensile strength ≥ 0.08Mpa, elongation at break ≥ 145%.

5. The novel above-ground sponge pit according to claim 1 is characterized in that: The density of each layer of staggered XPE strips in the bottom layer pad is greater than the density of each layer of staggered sponge strips in the middle layer pad.

6. The novel above-ground sponge pit according to claim 1, characterized in that: The bottom surface of the lowest XPE strip of the bottom pad is vertically connected with an elastic column, the lower end of the elastic column is connected with a suction cup that passes through the bottom jacket, and a supporting column is fixed between adjacent suction cups of the lowest XPE strip. The total height of the suction cup and the elastic column is higher than the height of the supporting column.

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