CN108635801B

CN108635801B - Indoor vertical body-building sand bag

Info

Publication number: CN108635801B
Application number: CN201810304914.5A
Authority: CN
Inventors: 郑毅; 李娟�
Original assignee: Xuchang University
Current assignee: Xuchang University
Priority date: 2018-04-08
Filing date: 2018-04-08
Publication date: 2020-02-18
Anticipated expiration: 2038-04-08
Also published as: CN108635801A

Abstract

An indoor vertical fitness sandbag comprises a sandbag body, an upper upright post, a lower upright post and a fixed base arranged at the bottom of the lower upright post, wherein the upper upright post and the lower upright post are connected through threads to adjust the overall length of the upper upright post so as to tightly prop against an indoor roof; the sand bag body is internally provided with an internal hard material filling cavity and an external elastic material buffering cavity. The sandbag body is designed into an external elastic material buffer cavity and an internal hard material filling cavity, and different fillers are filled in the two cavities, so that the vibration caused by impact force is greatly reduced, and the impact force can be further reduced by arranging the force unloading assembly in the sandbag body, so that the impact force and the vibration are transmitted to the lower upright post and the base as little as possible, and the service life is prolonged.

Description

Indoor vertical body-building sand bag

Technical Field

The invention relates to a boxing sandbag in the field of sports fitness equipment, in particular to an indoor vertical fitness sandbag.

Background

In modern society, along with the extension of working time, the increase of working pressure and the acceleration of life rhythm, people's health is worse and worse, and sub-healthy crowd is more and more, therefore official working body-building apparatus, domestic body-building apparatus are more and more gaining people's recognition and attention. More and more people are beginning to use sandbags for fitness. Sandbags are generally divided into two categories, one being a suspended sandbag and the other being a post sandbag. The suspended sandbag needs to be drilled in the roof and then suspended in half-empty by an iron chain. The pillar sandbag is generally characterized in that a sandbag body is fixed on the upper part of a pillar, and a base is fixed with the ground through bolts.

Current vertical sand bag, when receiving the boxing effort, the reduction of impact force is not good, can transmit most effort for the stand to cause the swing range increase of the sand bag body, and lead to the fact certain wearing and tearing to the stand structure, reduced life.

Disclosure of Invention

In order to solve the problem that the vertical sandbag has serious abrasion to the upright post structure caused by lower reduction amplitude of the impact force, the invention provides an indoor vertical body-building sandbag, which firstly designs a sandbag body into an external elastic material buffer cavity and an internal hard material filling cavity, and different fillers are filled in the two cavities, so that the vibration caused by the impact force is greatly reduced, and a force unloading component is arranged in the sandbag body, so that the impact force can be further reduced, the impact force and the vibration are transmitted to a lower upright post and a base as little as possible, the service life is prolonged, finally, a ball is arranged between the sandbag body and a supporting plate mechanism, so that the sandbag body can be displaced in a small amplitude after being stressed to reduce the vibration, and the displacement in the small amplitude can also generate slow rebound due to the existence of a check ring and an elastic silica gel ring, the use is not influenced; simultaneously, this sand bag's last stand passes through screw-thread fit connection with lower stand, can make through the swivel sleeve on the operation upper column stand and stretch out the tight roof in top to improve the stability after the installation, also offset the impact force to a certain extent.

The technical scheme adopted by the invention for solving the technical problems is as follows: an indoor vertical fitness sandbag comprises a sandbag body, an upper stand column, a lower stand column and a fixed base arranged at the bottom of the lower stand column, wherein the upper stand column is of a hollow tubular structure, the upper part of the lower stand column extends into the upper stand column and is in threaded fit connection with the upper stand column, a rotating sleeve is sleeved outside the upper stand column, the rotating sleeve is in threaded fit with the outer wall of the upper stand column, the rotating sleeve is driven to horizontally rotate by operating a handle on the rotating sleeve, the lifting of the upper stand column along the lower stand column is further realized, and a rubber leather pad tightly propping an indoor roof is arranged at the top end of the upper stand column; the outer part of the joint of the upper upright post and the lower upright post is sleeved with a fixed sleeve, the bottom center of the fixed sleeve is fixedly connected with the lower upright post, the center of the top of the fixed sleeve is provided with a bearing, and the outer wall of the upper upright post is rotationally connected with the inner ring of the bearing;

the bottom outer wall surrounding the fixed sleeve is provided with a supporting plate mechanism, the supporting plate mechanism comprises an annular metal base plate surrounding the outer wall of the fixed sleeve, a check ring protruding upwards and arranged around the edge of the upper surface of the metal base plate, and a metal supporting plate arranged at the bottom of the sand bag body, wherein the bottom of the metal supporting plate is provided with a plurality of balls, so that the sand bag body is driven by the balls to move in a cavity formed by the metal base plate and the check ring to unload force when being stressed;

the sand bag body is of a hollow cylindrical structure, a force unloading assembly fixed on a fixed sleeve is arranged in a cavity in the middle of the sand bag body, the force unloading assembly comprises an annular upper fixed plate and an annular lower fixed plate which are identical in diameter, the upper fixed plate and the lower fixed plate are made of elastic silica gel, and the top end and the bottom end of the fixed sleeve respectively penetrate through central through holes of the upper fixed plate and the lower fixed plate; a plurality of rubber rollers are arranged around the edges of the lower fixing plate and the upper fixing plate, two ends of each rubber roller are respectively and rotationally connected with the lower fixing plate and the upper fixing plate through rotating pin shafts, so that cylindrical rollers are formed, rolling gaps are formed between every two adjacent rubber rollers, and the width of each rolling gap is smaller than the diameter of each rubber roller;

the sand bag body is formed by sewing a polyurethane surface layer to form a hollow rectangular plate-shaped piece, the two ends of the rectangular plate-shaped piece are connected by a zipper after the rectangular plate-shaped piece is curled around a force-unloading assembly to form the sand bag body, an elastic silica gel ring is filled between the outer side wall of the bottom end of the sand bag body and a retainer ring, a gap is formed between the bottom surface of the elastic silica gel ring and the surface of a metal substrate, a rubber interlayer is arranged in the polyurethane surface layer along the height direction of the sand bag body and divides the inner space of the polyurethane surface layer into a hard material filling cavity and an elastic material buffer cavity, wherein the hard material filling cavity surrounds the force-unloading assembly, the elastic material buffer cavity surrounds the hard material filling cavity, the thickness of the elastic material buffer cavity is 30-60% of that of the hard material filling cavity, the elastic material buffer cavity is filled by a plurality of rubber bags with different sizes, the rubber bag with the largest volume does not exceed 1 cubic decimeter, and lubricating oil is coated on the outer surface of the rubber bag to reduce friction among the rubber bags; the hard material filling cavity is filled with filler formed by uniformly mixing porous ceramic particles, wheat particles and paraffin powder in a mass ratio of 75:15: 10.

As a preferred embodiment of the present invention, an elastic silica gel buffer plate is disposed in a cavity between the rubber roller and the upper upright, the elastic silica gel buffer plate is sleeved on the upper upright through a central mounting hole and is located in the middle of the rubber roller, and the edge of the elastic silica gel buffer plate is in contact with the rubber roller.

As another preferred embodiment of the invention, the rubber bag is a pocket made of elastic rubber, the pocket is provided with an opening filled with high-foaming buffer sponge inwards, the opening is bound by a rope, and the wall thickness of the pocket is not more than 2 mm; the volume of the high-foaming buffer sponge in the rubber bag is 90% of the volume of the rubber bag, so that the rubber bag has certain deformation and sliding allowance when being subjected to impact force.

In addition, as another preferred embodiment of the present invention, the wheat grains filled in the hard material filling cavity need to be pretreated by: heating wheat grains to 70-80 deg.C, keeping the temperature for 10min to destroy embryo bud, and mixing with 20-30 wt% of lubricant, wherein the lubricant is liquid paraffin oil, bentonite and dimethyl octadecyl benzyl ammonium chloride at a mass ratio of 5:2: 1.

Compared with the prior art, the invention has the following beneficial effects:

1) according to the sand bag, firstly, a sand bag body is designed into an external elastic material buffer cavity and an internal hard material filling cavity, and different fillers are filled in the two cavities, so that the vibration caused by impact force is greatly reduced, and the force unloading assembly is arranged in the sand bag body, so that the impact force can be further reduced, the impact force and the vibration are transmitted to the lower upright post and the base as little as possible, the service life is prolonged, and finally, the ball is arranged between the sand bag body and the supporting plate mechanism, so that the sand bag body can be displaced in a small amplitude after being stressed to reduce the vibration, and due to the existence of the check ring and the elastic silica gel ring, the displacement in a small amplitude can be slowly rebounded, and the use is not influenced; meanwhile, the upper stand column and the lower stand column of the sandbag are connected in a thread fit manner, and the upper stand column can extend out to tightly push against a roof by operating the rotary sleeve on the upper stand column, so that the stability after installation is improved, and the impact force is counteracted to a certain extent;

2) in the invention, the supporting plate mechanism supports the sandbag body and can enable the sandbag body to discharge force by small-amplitude displacement of the balls on the metal substrate, the sandbag body is connected with the fixed roller through the force discharging assembly in the middle cavity of the sandbag body, the core of the force discharging assembly is a cylindrical roller structure formed by a plurality of rotatable rubber rollers, when the structure is impacted, the impact force can be decomposed into two parts, one part faces to the center of the force discharging assembly, and the part of the force can press the rubber rollers to deform the rubber rollers, thereby reducing the impact force; the other part of the rubber roller forms a certain angle with the rubber roller, and an acting force is generated in the tangential direction of the rubber roller at the moment and is also reduced by rotation;

3) the sandbag body is provided with an internal hard material filling cavity and an external elastic material buffering cavity, wherein rubber bags with different sizes are filled in the elastic material buffering cavity, high-foaming buffering sponge is filled in each rubber bag, lubricating oil is coated on the surface of each rubber bag, and the volume of each rubber bag is not more than 1 cubic centimeter; the mixture formed by the porous ceramic particles, the wheat particles and the paraffin powder filled in the hard material filling cavity can generate certain deformation allowance when being subjected to impact force due to the existence of the wheat particles and the paraffin powder, so that the vibration is reduced, and compared with the existing common sand grains, the porous ceramic particles can also absorb certain vibration impact force due to the porous structure in the porous ceramic particles.

Drawings

FIG. 1 is a schematic view of the overall structure of the present invention;

FIG. 2 is a schematic structural view of the sandbag body and the force-releasing assembly;

FIG. 3 is a schematic structural view of a rubber bag;

FIG. 4 is a partial schematic view of the force relief assembly;

FIG. 5 is a schematic structural view of a pallet mechanism;

reference numerals: 1. the device comprises an upper upright post, 101, a rubber leather pad, 102, a rotating sleeve, 2, a lower upright post, 201, a fixed base, 3, a fixed sleeve, 4, a sandbag body, 401, a polyurethane surface layer, 402, an elastic material buffer cavity, 403, a rubber bag, 404, a rubber interlayer, 405, a hard material filling cavity, 406, high-foaming buffer sponge, 407, an opening, 5, a force unloading component, 501, an upper fixed plate, 502, a rubber roller, 503, a lower fixed plate, 504, an elastic silica gel buffer plate, 505, a cavity, 506, a rolling gap, 507, a rotating pin shaft, 6, a supporting plate mechanism, 601, a metal base plate, 602, a retaining ring, 603, a metal supporting plate, 604, a ball, 605 and an elastic silica gel ring.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

As shown in fig. 1-5, an indoor vertical fitness sandbag comprises a sandbag body 4, an upper upright 1, a lower upright 2 and a fixed base 201 arranged at the bottom of the lower upright 2, wherein the upper upright 1 is of a hollow tubular structure, the upper part of the lower upright 2 extends into the upper upright 1 and is in threaded fit connection with the upper upright 1, a rotary sleeve 102 is sleeved outside the upper upright 1, the rotary sleeve 102 is in threaded fit with the outer wall of the upper upright 1, the rotary sleeve 102 is driven to horizontally rotate by operating a handle on the rotary sleeve 102, so that the upper upright 1 is lifted along the lower upright 2, and a rubber cushion 101 tightly propping an indoor roof is arranged at the top end of the upper upright 1; a fixed sleeve 3 is sleeved on the outer part of the joint of the upper upright post 1 and the lower upright post 2 in a surrounding manner, the bottom center of the fixed sleeve 3 is fixedly connected with the lower upright post 2, a bearing is arranged at the center of the top of the fixed sleeve 3, and the outer wall of the upper upright post 1 is rotatably connected with the inner ring of the bearing;

the supporting plate mechanism 6 is arranged around the outer wall of the bottom of the fixing sleeve 3, the supporting plate mechanism 6 comprises an annular metal base plate 601 arranged around the outer wall of the fixing sleeve 3, a retaining ring 602 arranged around the edge of the upper surface of the metal base plate 601 and protruding upwards, and a metal supporting plate 603 arranged at the bottom of the sandbag body 4, the upper edge of the retaining ring 602 is higher than the bottom surface of the sandbag body 4, wherein a plurality of balls 604 are arranged at the bottom of the metal supporting plate 603, so that the sandbag body 4 is driven by the balls 604 to move in a cavity formed by the metal base plate 601 and the retaining ring 602 to unload force when the sandbag body is stressed;

the sandbag body 4 is of a hollow cylindrical structure, a force unloading assembly 5 fixed on the fixed sleeve 3 is arranged in a cavity in the middle of the sandbag body 4, the force unloading assembly 5 comprises an annular upper fixed plate 501 and an annular lower fixed plate 503 which are the same in diameter, the upper fixed plate 501 and the lower fixed plate 503 are made of elastic silica gel, and the top end and the bottom end of the fixed sleeve 3 respectively penetrate through central through holes of the upper fixed plate 501 and the lower fixed plate 503; a plurality of rubber rollers 502 are arranged around the edges of the lower fixing plate 503 and the upper fixing plate 501, two ends of the rubber rollers 502 are respectively and rotatably connected with the lower fixing plate 503 and the upper fixing plate 501 through rotating pin shafts 507, so that cylindrical rollers are formed, rolling gaps 506 are formed between the adjacent rubber rollers 502, and the width of each rolling gap 506 is smaller than the diameter of the rubber roller 502;

the sandbag body 4 is formed by sewing a polyurethane surface layer 401 to form a hollow rectangular plate-shaped piece, two ends of the rectangular plate-shaped piece are connected by a zipper after the rectangular plate-shaped piece is curled around a force-unloading component 5 to form the sandbag body 4, an elastic silica gel ring 605 is filled between the outer side wall of the bottom end of the sandbag body 4 and a retainer ring 602, a gap is formed between the bottom surface of the elastic silica gel ring 605 and the surface of a metal substrate 601, a rubber interlayer 404 is arranged in the polyurethane surface layer 401 along the height direction of the sandbag body 4, the rubber interlayer 404 divides the inner space of the polyurethane surface layer 401 into a hard material filling cavity 405 and an elastic material buffer cavity 402, wherein the hard material filling cavity 405 surrounds the force-unloading component 5, the elastic material buffer cavity 402 surrounds the hard material filling cavity 405, the thickness of the elastic material buffer cavity 402 is 30-60% of the thickness of the hard material filling cavity 405, the elastic material buffer, the rubber bag 403 is filled with high-foaming buffer sponge 406, the rubber bag 403 with the largest volume does not exceed 1 cubic centimeter, and the outer surface of the rubber bag 403 is coated with lubricating oil to reduce the friction between the rubber bags 403; the hard material filling cavity 405 is filled with filler formed by uniformly mixing porous ceramic particles, wheat particles and paraffin powder in a mass ratio of 75:15: 10.

The above is the basic embodiment of the present invention, and further improvements, optimizations and limitations can be made on the basis of the above:

as a preferred embodiment of the present invention, an elastic silicone buffer plate 504 is disposed in a cavity 505 between the rubber roller 502 and the upper column 1, the elastic silicone buffer plate 504 is sleeved on the upper column 1 through a central mounting hole and is located in the middle of the rubber roller 502, and the edge of the elastic silicone buffer plate 504 is in contact with the rubber roller 502;

as another preferred embodiment of the present invention, the rubber bag 403 is a bag made of elastic rubber, the bag has an opening 407 into which a highly foamed buffer sponge 406 is filled, and the opening 407 is bound by a rope, the wall thickness of the bag is not more than 2 mm; the volume of the high-foaming buffer sponge 406 in the rubber bag 403 is 90% of the volume of the rubber bag 403, so that the rubber bag 403 has certain deformation and sliding allowance when being subjected to impact force;

in addition, as another preferred embodiment of the present invention, the wheat grains filled in the hard material filling cavity 405 need to be pre-processed by: heating wheat grains to 70-80 deg.C, keeping the temperature for 10min to destroy embryo bud, and mixing with 20-30 wt% of lubricant, wherein the lubricant is liquid paraffin oil, bentonite and dimethyl octadecyl benzyl ammonium chloride at a mass ratio of 5:2: 1.

In the scheme, a lubricating layer is formed on the surface of the wheat grains, so that when the wheat grains are subjected to extrusion impact of surrounding powder, sliding displacement can be generated, and a part of impact force can be offset.

It will be evident to those skilled in the art that the invention is not limited to the details of the foregoing illustrative embodiments, and that the present invention may be embodied in other specific forms without departing from the spirit or essential attributes thereof. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.

Furthermore, it should be understood that although the present description refers to embodiments, not every embodiment may contain only a single embodiment, and such description is for clarity only, and those skilled in the art should integrate the description, and the embodiments may be combined as appropriate to form other embodiments understood by those skilled in the art.

Claims

1. The utility model provides an indoor vertical body-building sand bag of using, includes the sand bag body (4), goes up stand (1), stand (2) and setting unable adjustment base (201) in stand (2) bottom down, its characterized in that: the upper upright post (1) is of a hollow tubular structure, the upper part of the lower upright post (2) extends into the upper upright post (1) and is in threaded fit connection with the upper upright post, a rotary sleeve (102) is sleeved outside the upper upright post (1), the rotary sleeve (102) is in threaded fit with the outer wall of the upper upright post (1), the rotary sleeve (102) is driven to horizontally rotate by operating a handle on the rotary sleeve (102), the upper upright post (1) is lifted along the lower upright post (2), and a rubber leather pad (101) for tightly propping an indoor roof is arranged at the top end of the upper upright post (1); a fixed sleeve (3) is sleeved on the outer part of the joint of the upper upright post (1) and the lower upright post (2) in a surrounding manner, the bottom center of the fixed sleeve (3) is fixedly connected with the lower upright post (2), a bearing is arranged at the center of the top of the fixed sleeve (3), and the outer wall of the upper upright post (1) is rotatably connected with the inner ring of the bearing;

a supporting plate mechanism (6) is arranged around the outer wall of the bottom of the fixing sleeve (3), the supporting plate mechanism (6) comprises a circular metal base plate (601) arranged around the outer wall of the fixing sleeve (3), a check ring (602) arranged around the edge of the upper surface of the metal base plate (601) and protruding upwards and a metal supporting plate (603) arranged at the bottom of the sand bag body (4), wherein a plurality of balls (604) are arranged at the bottom of the metal supporting plate (603), so that the sand bag body (4) is driven by the balls (604) to move in a cavity formed by the metal base plate (601) and the check ring (602) to unload force when being stressed;

the sand bag body (4) is of a hollow cylindrical structure, a force unloading assembly (5) fixed on the fixed sleeve (3) is arranged in a cavity in the middle of the sand bag body (4), the force unloading assembly (5) comprises an upper fixed plate (501) and a lower fixed plate (503) which are annular and have the same diameter, the upper fixed plate (501) and the lower fixed plate (503) are made of elastic silica gel, and the top end and the bottom end of the fixed sleeve (3) penetrate through central through holes of the upper fixed plate (501) and the lower fixed plate (503) respectively; a plurality of rubber rollers (502) are arranged around the edges of the lower fixing plate (503) and the upper fixing plate (501), two ends of each rubber roller (502) are respectively and rotatably connected with the lower fixing plate (503) and the upper fixing plate (501) through rotating pin shafts (507) to form a cylindrical roller, rolling gaps (506) are formed between the adjacent rubber rollers (502), and the width of each rolling gap (506) is smaller than the diameter of each rubber roller (502);

an elastic silica gel buffer plate (504) is arranged in a cavity (505) between the rubber roller (502) and the upper upright post (1), the elastic silica gel buffer plate (504) is sleeved on the upper upright post (1) through a central mounting hole and is positioned in the middle of the rubber roller (502), and the edge of the elastic silica gel buffer plate (504) is in contact with the rubber roller (502);

the sandbag body (4) is formed by sewing a polyurethane surface layer (401) to form a hollow rectangular plate-shaped piece, the two ends of the rectangular plate-shaped piece are connected by a zipper after the rectangular plate-shaped piece is curled around a force unloading component (5) to form the sandbag body (4), an elastic silica gel ring (605) is filled between the outer side wall of the bottom end of the sandbag body (4) and a retainer ring (602), a gap is formed between the bottom surface of the elastic silica gel ring (605) and the surface of a metal substrate (601), a rubber interlayer (404) is arranged in the polyurethane surface layer (401) along the height direction of the sandbag body (4), the rubber interlayer (404) divides the inner space of the polyurethane surface layer (401) into a hard material filling cavity (405) and an elastic material buffer cavity (402), wherein the hard material filling cavity (405) surrounds the force unloading component (5), the elastic material buffer cavity (402) surrounds the hard material filling cavity (405), and the thickness of the elastic material buffer cavity (402) is 30-60 percent The elastic material buffer cavity (402) is filled with a plurality of rubber bags (403) with different sizes, high-foaming buffer sponge (406) is filled in the rubber bags (403), the rubber bag (403) with the largest volume does not exceed 1 cubic centimeter, and lubricating oil is coated on the outer surface of the rubber bags (403) to reduce friction among the rubber bags (403); the hard material filling cavity (405) is filled with fillers formed by uniformly mixing porous ceramic particles, wheat particles and paraffin powder in a mass ratio of 75:15: 10;

the rubber bag (403) is a bag made of elastic rubber, the bag is provided with an opening (407) filled with high-foaming buffer sponge (406) inwards, and the opening (407) is bound by adopting a rope; the volume of the high-foaming buffer sponge (406) in the rubber bag (403) is 90% of the volume of the rubber bag (403), so that the rubber bag (403) has certain deformation and sliding allowance when being impacted;

the wheat grains filled in the hard material filling cavity (405) need to be pretreated, and the treatment method comprises the following steps: heating wheat grains to 70-80 deg.C, keeping the temperature for 10min to destroy embryo bud, and mixing with 20-30 wt% of lubricant, wherein the lubricant is liquid paraffin oil, bentonite and dimethyl octadecyl benzyl ammonium chloride at a mass ratio of 5:2: 1.