CN111375188B - Portable fixing device for volleyball frame - Google Patents

Abstract

The invention discloses a fixing device of a portable volleyball frame, which comprises a base and a support rod arranged on the base, wherein a first cavity is formed in the base, first rollers are respectively arranged on two sides of the base, the two groups of first rollers are connected through a first connecting shaft, a first opening is formed in the bottom of the first cavity, a first movable groove is formed in the top of the first cavity, a first connecting plate is movably connected to the top of the first cavity, a movable block is arranged in the first movable groove, the bottom of the movable block is movably connected with a second connecting plate, the bottom end of the second connecting plate is movably connected to the first connecting plate, a first fixing plate matched with the movable block is arranged on the base, a second roller is arranged at the bottom of the first connecting plate, and a lifting assembly is arranged on the base; through the form of the second gyro wheel selectivity with the bottom surface contact, be convenient for do the transport to the volleyball frame when guaranteeing the fixed effect of volleyball frame, promote volleyball frame convenient to use nature.

Description

Portable fixing device for volleyball frame

Technical Field

The invention belongs to the technical field of fixing devices, and particularly relates to a fixing device of a portable volleyball frame.

Background

Volleyball playing is a very common sports activity, volleyball equipment is simple, and the game rules are easy to master. The sports field can be used for competition and training on the court, can also be used for activities on a common open ground, has changeable amount of exercise, and is suitable for people of different ages, different sexes, different constitutions and different training degrees. However, most of the existing volleyball stands are upright vertical rods fixed on the field, and the net is hung on the vertical rods when the volleyball stands are used. However, if the player goes to other places for activities or competitions, a specific movable ball rack is needed, but the existing movable ball rack is heavy and troublesome to carry.

Disclosure of Invention

The invention provides a portable fixing device for a volleyball frame, which is convenient to use and overcomes the defects of the prior art.

In order to achieve the purpose, the invention adopts the following technical scheme: a fixing device of a portable volleyball frame comprises a base and a support rod arranged on the base, wherein a first cavity is formed in the base, first idler wheels are arranged on two sides of the base respectively, the two groups of idler wheels are connected through a first connecting shaft, a first opening is formed in the bottom of the first cavity, a first movable groove is formed in the top of the first cavity, a first connecting plate is movably connected to the top of the first cavity, a movable block is arranged in the first movable groove, a second connecting plate is movably connected to the bottom of the movable block, the bottom end of the second connecting plate is movably connected to the first connecting plate, a first fixing plate matched with the movable block is arranged on the base, a second idler wheel is arranged at the bottom of the first connecting plate, and a lifting assembly is arranged on the base; when the volleyball frame is placed on the ground, the first roller is placed on the ground, the front end of the volleyball frame is turned downwards under the action of gravity, so that the bottom surface of the base is directly contacted with the ground, the friction force between the base and the ground is increased, the base is fixed, the volleyball frame is fixed at a designated position, and the use reliability of the volleyball frame is improved; when the volleyball frame is moved, the lifting assembly pushes one end of the base to move upwards, the first roller provides supporting force for the base, the base rotates around the first roller, the base is turned over from an initial inclined state to a horizontal state, the middle part of the base is in a suspended state, the second roller moves towards the first opening under the action of gravity, the second roller falls out from the first opening, the second roller is contacted with the ground, the second roller drives the first connecting plate to turn downwards when moving downwards, the first connecting plate drives the second connecting plate to turn over, when the second roller is contacted with the ground, the second connecting plate turns over to a vertical state, the second connecting plate drives the movable block to move in the first movable groove, the movable block moves to one end of the first movable groove, the first fixing plate has a fixing effect on the movable block, and the movable block is fixed at one end of the first movable groove, so that the second connecting plate is fixed, under the action of the second connecting plate, supporting force is provided for the first connecting plate, so that the first connecting plate cannot turn over, the second roller can be stably placed on the ground, supporting force is provided for the base, the first roller and the second roller are both in contact with the ground, friction between the base and the ground is greatly reduced under the matching of the first roller and the second roller, the base is directly pushed to move on the ground, and the moving difficulty of the volleyball stand is reduced; when the volleyball frame moves to a designated position, the lifting assembly is contacted with the ground again, the first fixed plate is out of fit with the movable block, so that the first fixed plate loses the fixing effect on the movable block, the whole gravity of the volleyball frame is directly pressed on the first roller and the second roller, the lifting assembly is slowly reset, the base slowly rotates around the first roller until the bottom surface of the base is contacted with the ground, the second roller is accommodated in the first cavity, and the friction force between the base and the bottom surface is increased, so that the volleyball frame can be transported; the form that drives the second gyro wheel through first connecting plate and remove makes the selective and bottom surface contact of second gyro wheel, is convenient for do the transport to the volleyball frame when guaranteeing the fixed effect of volleyball frame, promotes volleyball frame convenient to use nature.

Be equipped with the installation piece in the first cavity, be equipped with the installation cavity on the installation piece, be equipped with the second opening on the installation cavity lateral wall, be equipped with in the installation cavity with second opening matched with fly leaf, the fly leaf bottom is equipped with first supporting spring, the fly leaf bottom is equipped with the second fixed plate, be equipped with on the first connecting axle with the first annular of second fixed plate matched with, work as the movable block removes extremely when the one end of branch is kept away from to first movable groove, the second fixed plate is embedded into in the first annular.

The inner wall of the first movable groove is provided with a first sliding groove, the side wall of the movable block is provided with a fourth cavity communicated with the third cavity, and the two sides of the second annular groove cavity are respectively provided with a fourth cavity, and an air bag is arranged in the fourth cavity.

The movable block is provided with a first connecting block, the first connecting block is provided with a first groove matched with the first fixing plate, the base is provided with a second sliding groove, the bottom of the first fixing plate is provided with a second sliding block matched with the second sliding groove, the bottom of the second sliding groove is provided with a second movable cavity, the base is provided with a third movable cavity, a second connecting shaft is arranged in the third movable cavity in a penetrating mode, and the bottom of the second sliding block is provided with a fifth connecting plate matched with the connecting shaft.

Be equipped with on the second connecting axle with fifth connecting plate matched with first drive wheel, second drive wheel and third drive wheel, first drive wheel link firmly in on the second connecting axle, the third drive wheel cover is located on the second connecting axle, be equipped with the second annular on the second connecting axle, the second drive wheel is located in the annular, be equipped with a plurality of dogteeth in the second annular, dogtooth one side is ARC structure.

A fixing ring is arranged on the inner wall of the third movable cavity, the fixing ring is fixedly connected in the third movable cavity through a third connecting rod, and the second connecting shaft penetrates through the fixing ring; the movable connecting device is characterized in that a fourth movable cavity is formed in the side wall of the third movable cavity, a fixed rod penetrates through the side wall of the fourth movable cavity, a first limiting spring is arranged at one end of the fixed rod, a second groove matched with the second connecting shaft is formed in the other end of the fixed rod, a supporting sheet is arranged on the inner wall of the second groove and made of elastic materials, and a plurality of third grooves matched with the supporting sheet are formed in the second connecting shaft.

A fourth connecting rod is arranged on the fixed rod, a fifth connecting rod is movably connected to the fourth connecting rod, a first push rod is arranged at the top of the fifth connecting rod, the first push rod penetrates through the fourth movable cavity, and a sixth connecting plate is arranged at the top of the first push rod; one end of the second connecting shaft is provided with a first return spring, the base is provided with a connecting groove, and a sleeve is connected in the connecting groove through threads.

The improved base is characterized in that a fourth groove is formed in the side wall of the base, a supporting plate is rotatably connected in the fourth groove, a sixth connecting rod is arranged on the supporting plate and is of an arc-shaped structure, a fifth movable cavity matched with the sixth connecting rod is formed in the base, a second connecting block is arranged at one end of the sixth connecting rod, a first through hole is formed in the second connecting block, and the first through hole is of a conical structure.

Be equipped with logical chamber on the base, be equipped with the seventh connecting rod on the backup pad lateral wall, lead to the intracavity and be equipped with the third connecting block, seventh connecting rod bottom is equipped with the second movable groove, be equipped with coupling spring in the second movable groove, the coupling spring bottom is equipped with first stopper, be equipped with on the third connecting block with first stopper matched with spacing groove, spacing groove bottom is equipped with the sixth movable chamber, swing joint has seventh connecting plate and eighth connecting plate in the sixth movable chamber, eighth connecting plate one end swing joint has the second push rod, lead to chamber top swing joint has the counter weight strip, lead to be equipped with on the intracavity wall with counter weight strip matched with second stopper.

The invention has the following advantages: the form that drives the second gyro wheel through first connecting plate and remove makes the selective and bottom surface contact of second gyro wheel, is convenient for do the transport to the volleyball frame when guaranteeing the fixed effect of volleyball frame, promotes volleyball frame convenient to use nature.

Drawings

FIG. 1 is a schematic structural diagram of the present invention.

Fig. 2 is a right side view of the present invention.

Fig. 3 is a cross-sectional view taken along a-a in fig. 2.

Fig. 4 is an enlarged view of a portion a in fig. 3.

Fig. 5 is an enlarged view of fig. 3 at B.

Fig. 6 is a cross-sectional view taken along line B-B of fig. 2.

Fig. 7 is an enlarged view of fig. 6 at C.

Fig. 8 is a cross-sectional view taken along line C-C of fig. 2.

Fig. 9 is an enlarged view of fig. 8 at D.

Fig. 10 is a cross-sectional view taken along line D-D in fig. 2.

Fig. 11 is an enlarged view of fig. 10 at E.

Fig. 12 is a cross-sectional view taken along G-G in fig. 2.

Fig. 13 is an enlarged view of fig. 12 at F.

Fig. 14 is a front view of the present invention.

Fig. 15 is a cross-sectional view taken along line E-E of fig. 14.

Fig. 16 is an enlarged view at G in fig. 15.

Fig. 17 is a sectional view taken along H-H in fig. 14.

Fig. 18 is an enlarged view of fig. 17 at H.

Fig. 19 is a cross-sectional view taken along J-J in fig. 14.

Fig. 20 is an enlarged view at I in fig. 19.

Fig. 21 is an enlarged view at J in fig. 20.

Fig. 22 is a cross-sectional view taken along line I-I of fig. 14.

Fig. 23 is an enlarged view at K in fig. 22.

Fig. 24 is an enlarged view at L in fig. 23.

Detailed Description

As shown in fig. 1-24, a fixing device for a portable volleyball stand comprises a base 1 and a support rod 2 arranged on the base 1, wherein the support rod is fixedly connected to the base through a screw, a fixing frame 21 is arranged on the support rod, and the fixing frame is in a tripod shape and can improve the connection effect of the support rod and the base under the action of the fixing frame; a first cavity 12 is arranged on the base 1, first rollers 11 are respectively arranged on two sides of the base 1, the first rollers protrude out of the side wall of the base, the two groups of first rollers 11 are connected through a first connecting shaft 111, the first rollers are in contact with the ground, a first opening 121 is arranged at the bottom of the first cavity 12, a first movable groove 15 is arranged at the top of the first cavity 12, a first connecting plate 17 is hinged to the top of the first cavity 12, a movable block 16 is arranged in the first movable groove 15, a second connecting plate 163 is hinged to the bottom of the movable block 16, the bottom end of the second connecting plate 163 is hinged to the first connecting plate 17, a first fixing plate 110 matched with the movable block 16 is arranged on the base 1, a second roller 171 is arranged at the bottom of the first connecting plate 17, and a lifting assembly is arranged on the base 1; when the volleyball frame is placed on the ground, the first roller is placed on the ground, the front end of the volleyball frame is turned downwards under the action of gravity, so that the bottom surface of the base is directly contacted with the ground, the friction force between the base and the ground is increased, the base is fixed, the volleyball frame is fixed at a designated position, and the use reliability of the volleyball frame is improved; when the volleyball frame is moved, the lifting assembly pushes one end of the base to move upwards, the first roller provides supporting force for the base, the base rotates around the first roller, the base is turned over from an initial inclined state to a horizontal state, the middle part of the base is in a suspended state, the second roller moves towards the first opening under the action of gravity, the second roller falls out from the first opening, the second roller is contacted with the ground, the second roller drives the first connecting plate to turn downwards when moving downwards, the first connecting plate drives the second connecting plate to turn over, when the second roller is contacted with the ground, the second connecting plate turns over to a vertical state, the second connecting plate drives the movable block to move in the first movable groove, the movable block moves to one end of the first movable groove, the first fixing plate has a fixing effect on the movable block, and the movable block is fixed at one end of the first movable groove, so that the second connecting plate is fixed, under the action of the second connecting plate, supporting force is provided for the first connecting plate, so that the first connecting plate cannot turn over, the second roller can be stably placed on the ground, supporting force is provided for the base, the first roller and the second roller are both in contact with the ground, friction between the base and the ground is greatly reduced under the matching of the first roller and the second roller, the base is directly pushed to move on the ground, and the moving difficulty of the volleyball stand is reduced; when the volleyball frame moves to a designated position, the lifting assembly is contacted with the ground again, the first fixed plate is out of fit with the movable block, so that the first fixed plate loses the fixing effect on the movable block, the whole gravity of the volleyball frame is directly pressed on the first roller and the second roller, the lifting assembly is slowly reset, the base slowly rotates around the first roller until the bottom surface of the base is contacted with the ground, the second roller is accommodated in the first cavity, and the friction force between the base and the bottom surface is increased, so that the volleyball frame can be transported; the form that drives the second gyro wheel through first connecting plate and remove makes the selective and bottom surface contact of second gyro wheel, is convenient for do the transport to the volleyball frame when guaranteeing the fixed effect of volleyball frame, promotes volleyball frame convenient to use nature.

The first cavity 12 is internally provided with an installation block 18, the installation block 18 is provided with an installation cavity 183, the side wall of the installation cavity 183 is provided with a second opening 184, the installation cavity 183 is internally provided with a movable plate 187 matched with the second opening 184, one end of the movable plate protrudes out of the second opening, the bottom of the movable plate 187 is provided with a first support spring 1876, the bottom of the movable plate 1876 is provided with a second fixed plate 1872, the first connecting shaft 111 is provided with a first annular groove 112 matched with the second fixed plate 1872, and when the movable block 16 moves to the end of the first movable groove 15 far away from the support rod 2, the second fixed plate 1872 is embedded into the first annular groove 112; under the mutual matching of the second fixing plate and the first ring groove, the second fixing plate can be always matched with the first connecting shaft when the movable plate descends, the first ring groove is always positioned below the second fixing plate in the rotating process, so that the first connecting shaft is fixed under the action of the second fixing plate, the first roller is fixed when the second roller is positioned in the first cavity, and the fixing effect of the base is improved; when the lifting assembly pushes the base to move upwards, the base overturns around the first roller, the front end of the base is enabled to be overturned upwards, the second roller falls out from the first opening to drive the first connecting plate and the second connecting plate to overturn, the second connecting plate drives the movable block to move towards the supporting rod direction, the movable block is enabled to move to one end of the first movable groove, the first supporting spring pushes the movable plate to move upwards, the second fixed plate is enabled to be separated from the first annular groove, the first roller is enabled to automatically restore to a rotating state, and the carrying difficulty of the ball arranging frame is reduced.

A first sliding groove 151 is formed in the inner wall of the first movable groove 15, a first sliding block 161 matched with the first sliding groove 151 is arranged on the side wall of the movable block 16, and the movable block is connected into the first movable groove under the mutual matching of the first sliding block and the first sliding groove, so that the movable block can only move in the horizontal direction, the supporting effect of the second connecting plate on the first connecting plate is ensured, the volleyball stand is supported under the action of the first roller and the second roller, and the carrying difficulty of the volleyball stand is reduced; a first movable cavity 19 is arranged on the side wall of the first movable groove 15, a third opening is arranged at the bottom of the first movable cavity 19, a first connecting rod 164 is arranged on the side wall of the movable block 16, a first push plate 165 matched with the third opening is arranged at the bottom of the first connecting rod 164, a third connecting plate 181 is hinged to the inner wall of the installation cavity 183, and a fourth connecting plate 182 is hinged to one end of the third connecting plate 181; a fourth limiting block 188 is arranged on the inner wall of the mounting cavity and controls the maximum overturning angle of the third connecting plate, so that the third connecting plate is always in an inclined state, and the third connecting plate and the fourth connecting plate are pushed to overturn through the first push plate; when the volleyball frame moves to a designated position, the lifting assembly is contacted with the ground, the first fixed plate is separated from the movable block, then the lifting assembly is gradually reset, the gravity of the volleyball frame presses the first roller and the second roller, the first connecting plate is pushed to turn over under the action of the gravity of the volleyball frame, the first connecting plate and the second connecting plate are driven to turn over when the second roller moves towards the first cavity, the second connecting plate drives the movable block to move, the first push rod drives the first push plate to move, the first push plate pushes the third connecting plate and the fourth connecting plate to rotate around the connecting point, the third connecting plate and the fourth connecting plate rotate towards the linear direction, one end of the fourth connecting plate is contacted with the movable plate to push the movable plate to move downwards, the second fixed plate is embedded into the first annular groove, the first connecting shaft is fixed, the bottom surface of the base is contacted with the ground after the base inclines, and the contact, the fixing effect of the volleyball frame is ensured; when the first push plate moves to one end of the first opening, the third connecting plate and the fourth connecting plate are turned to be close to a linear state, so that the first supporting spring pushes the movable plate to move upwards, the third connecting plate and the fourth connecting plate can be normally turned, and the situation that the third connecting plate and the fourth connecting plate obstruct the ascending of the movable plate is avoided.

A second cavity 1871 is arranged on the movable plate 187, a third cavity 1873 communicated with the second cavity 1871 is arranged on the second fixed plate 1872, a second push plate 186 is arranged at the top of the movable plate 187, a second connecting rod 1861 is arranged at the bottom of the second push plate 186, the second connecting rod 1861 is arranged in the second cavity 1871 in a penetrating manner, a third push plate 1862 is arranged at the bottom of the second connecting rod 1861, a second supporting spring 1863 is arranged at the bottom of the third push plate 1862, fourth cavities 1874 communicated with the third cavity 1873 are respectively arranged at two sides of the third cavity 1873, and air bags 1875 are arranged in the fourth cavities 1874; when the first push plate moves towards one end of the third opening, the first push plate pushes the third connecting plate and the fourth connecting plate to rotate around the connecting point, the fourth connecting plate pushes the movable plate to move downwards, so that the second fixed plate is embedded into the first ring groove, and after the second fixed plate is embedded into the first ring groove, the movable plate is contacted with the inner wall of the second opening, and the inner wall of the second opening provides supporting force for the movable plate, so that the movable plate is prevented from excessively descending; the fourth connecting plate is continuously turned over, so that the fourth connecting plate pushes the second push plate to move downwards, the second push plate drives the third push plate to move downwards, the air flow in the second cavity is pushed into the third cavity, the air flow in the third cavity enters the fourth cavity, the air bag is expanded and deformed under the action of the air flow, the width of the second fixing plate is increased, the air bag is extruded on the inner wall of the first annular groove, the contact effect of the second fixing plate and the inner wall of the first annular groove is increased, the first connecting shaft is fixed under the action of the second fixing plate, and the fixing effect of the volleyball stand in the using process is ensured; through the arrangement of the air bag, the width of the second fixing plate can be set to be smaller than that of the first ring groove, so that the second fixing plate can be conveniently inserted into the first ring groove, the second fixing plate is matched with the first ring groove, the friction force between the base and the bottom surface is increased to a greater extent, and the base is fixed at a specified position; in order to increase the friction force between the air bag and the inner wall of the first ring groove, a plurality of longitudinal grooves can be respectively arranged on the inner wall of the first ring groove and the side wall of the air bag, and the first roller is effectively braked.

The side wall of the movable plate is provided with a third sliding block, the inner wall of the installation cavity is provided with a third sliding groove 185 matched with the third sliding block, and under the mutual matching of the third sliding block and the third sliding groove, the movement track of the movable plate is limited, so that the movable plate can only move in the vertical direction, the matching effect of the second fixed plate and the first ring groove is ensured, the second fixed plate is accurately aligned with the first ring groove, and the use reliability of the volleyball frame is improved.

A first connecting block 162 is arranged on the movable block 16, a first groove matched with the first fixing plate 110 is arranged on the first connecting block 162, a second sliding groove 1501 is arranged on the base 1, a second sliding block 1103 matched with the second sliding groove 1501 is arranged at the bottom of the first fixing plate 110, a second movable cavity 150 is arranged at the bottom of the second sliding groove 1501, a third movable cavity 1600 is arranged on the base 1 and is arranged in the second movable cavity in a penetrating manner, a second connecting shaft 160 is arranged in the third movable cavity 1600 in a penetrating manner, and a fifth connecting plate 1102 matched with the second connecting shaft 160 is arranged at the bottom of the second sliding block 1103; the first fixing plate is provided with a pushing block 1101 which is arranged to provide a stress point for the movement of the first fixing plate so as to push the first fixing plate to move on the base; after the movable block moves to first activity groove one end, step on the ejector pad, first fixed plate is pushed forward, make first fixed plate move toward the movable block direction, first fixed plate is embedded into first recess, first fixed plate removes and drives the fifth connecting plate and remove, the fifth connecting plate cooperatees with the second connecting axle, play the fixed action to the fifth connecting plate, thereby it is fixed with the movable block to utilize first fixed plate, extrude the movable block in first activity groove one end, make the second connecting plate provide the holding power for first connecting plate, so that directly promote volleyball frame and remove.

A first driving wheel 1601, a second driving wheel 1602 and a third driving wheel 1603 which are matched with the fifth connecting plate 1102 are arranged on the second connecting shaft 160, the first driving wheel 1601 is fixedly connected to the second connecting shaft 160, the third driving wheel 1603 is sleeved on the second connecting shaft 160, a second annular groove is formed in the second connecting shaft 160, the second driving wheel 1602 is arranged in the second annular groove, a plurality of convex teeth are arranged in the second annular groove, one side of each convex tooth is of an arc-surface structure, and a pair of fifth grooves matched with the convex teeth are formed in the inner wall of the second driving wheel; when the volleyball frame is fixed at a designated position, the first driving wheel is connected with the bottom surface of the fifth connecting plate, and the first driving wheel is fixedly connected to the second connecting shaft, so that the second connecting shaft cannot rotate and the first driving wheel cannot rotate, and the fifth connecting plate is fixed under the action of the first driving wheel, so that the first fixing plate is fixed at the designated position, and the first fixing plate is prevented from moving; when the volleyball frame needs to be moved, the second connecting shaft is pushed into the third movable cavity, the first driving wheel moves away from the bottom of the fifth connecting plate, the second driving wheel moves to the bottom of the fifth connecting plate, the first fixing plate is pushed towards the first connecting block after the second rotating roller extends out of the first opening, and the second driving wheel can only rotate in a single direction under the mutual matching of the convex teeth and the fifth groove, namely the first fixing plate can only move towards the first connecting block and cannot move away from the first connecting block; after the first fixing plate is embedded into the first groove, the movable block is fixed, so that the movable block is placed in the first movable groove to provide a good fixing effect for the movable block, and the second connecting plate provides supporting force for the first connecting plate to enable the volleyball stand to stably move; when the volleyball frame moves to a designated place, the second connecting shaft is pushed into the third movable cavity again, the second driving wheel is moved away from the bottom of the fifth connecting plate, the third driving wheel moves to the bottom of the fifth connecting plate, the third driving wheel is sleeved on the second connecting shaft and can freely rotate relative to the second connecting shaft, the second idler wheel can be automatically pushed into the first cavity under the action of the gravity of the base, the bottom surface of the base is in contact with the ground, and the fixing effect of the volleyball frame is guaranteed.

A fixing ring 1100 is arranged on the inner wall of the third movable cavity 1600, the fixing ring 1100 is fixedly connected in the third movable cavity 1600 through a third connecting rod, and the second connecting shaft 160 is arranged in the fixing ring 1100 in a penetrating manner; a fourth sliding groove is formed in the second connecting shaft, a fourth sliding block matched with the fourth sliding groove is arranged on the inner wall of the fixing ring, and the fourth sliding block and the fourth sliding groove are matched with each other to limit the second connecting shaft so as to prevent the second connecting shaft from rotating in the fixing ring; a fourth movable cavity 190 is arranged on the side wall of the third movable cavity 1600, a fixing rod 170 penetrates through the side wall of the fourth movable cavity 190, a first limiting spring 1701 is arranged at one end of the fixing rod 170, a second groove matched with the second connecting shaft 160 is arranged at the other end of the fixing rod 170, a supporting sheet 1704 is arranged on the inner wall of the second groove, the supporting sheet 1704 is made of an elastic material, the supporting sheet can be a metal sheet, and a plurality of third grooves 1605 matched with the supporting sheet 1704 are arranged on the second connecting shaft 160; when the second connecting shaft is positioned in the fixed ring, the supporting sheet is embedded into one group of the second grooves, and the second connecting shaft is fixed under the mutual matching of the second grooves and the supporting sheet, so that the matching effect of the driving wheel and the fifth connecting plate is ensured, different fixing effects of different driving wheels on the first fixed plate are realized, and the fixing effect of the first fixed plate on the movable block is ensured; when the second connecting shaft is pushed to move towards the third movable cavity, the inner wall of the second groove is in contact with the side wall of the supporting sheet, and the supporting sheet is deformed under the action of the thrust of the second groove, so that the supporting sheet is separated from one group of second grooves and enters the other group of second grooves, the second connecting shaft is positioned in real time, and the driving wheel is prevented from moving when being matched with the fifth connecting plate.

A fourth connecting rod 1702 is arranged on the fixing rod 170, a fifth connecting rod 1703 is movably connected to the fourth connecting rod 1702, a first push rod 180 is arranged at the top of the fifth connecting rod 1703, the first push rod 180 penetrates through the fourth movable cavity 190, and a sixth connecting plate 1801 is arranged at the top of the first push rod 180; a first return spring 1604 is arranged at one end of the second connecting shaft 160, a connecting groove 1500 is arranged on the base 1, and a sleeve 1300 is connected in the connecting groove 1500 through threads; four third movable grooves 16001 are arranged on the inner wall of the third movable cavity, the four third movable grooves are symmetrically arranged on two sides of the inner wall of the third movable cavity, and the distance between the two longitudinal groups of third movable grooves is communicated with the distance between the first driving wheel and the second driving wheel and the distance between the second driving wheel and the third driving wheel; a second limiting spring 16002 is arranged in the third movable groove, a third limiting block 16003 is arranged at one end of the second limiting spring, a cambered surface is arranged at one side of the third limiting block, and an inclined surface is arranged at the other side of the third limiting block; when the volleyball frame is moved, the sleeve is rotated out of the connecting groove and is detached so as to directly push the second connecting shaft to move, the second connecting shaft is pushed into the third movable cavity, the second connecting shaft moves to be in contact with two groups of third limiting blocks close to the outlet of the third movable cavity, and moving resistance is provided for the second connecting shaft under the action of the limiting blocks so as to inform an operator that the first driving wheel is moved away from the bottom of the fifth connecting plate, and the second driving wheel moves to the bottom of the fifth connecting plate; the lifting assembly pushes the base to move upwards, after the second roller extends out of the first opening, the second roller is in contact with the ground to push the first fixing plate to move towards the movable block, and the first push plate is embedded into the first groove to fix the movable block, so that a good supporting effect is provided for the second roller; when the volleyball frame moves to the designated position, the second connecting shaft is pushed into the third movable cavity again, the second connecting shaft extrudes the third limiting blocks under the action of thrust, the third limiting blocks move into the third movable groove, so that the second connecting shaft passes by one side of the front two groups of third limiting blocks, the second connecting shaft is contacted with the rear two groups of third limiting blocks, and the second connecting shaft is provided with moving resistance again under the action of the third limiting blocks, so that a user is informed of the position replacement of the third driving wheel and the second driving wheel, and the first fixing plate is automatically reset under the pushing of the movable blocks; after the volleyball frame is fixed in position, the sixth connecting plate is pushed downwards, the sixth connecting plate pushes the push rod to move downwards, the push rod pushes the fifth connecting rod to rotate around the connecting point, the fifth connecting rod pushes the fixing rod to move, the supporting plate is separated from the third groove, the second connecting shaft is pushed to move backwards under the action of the first reset spring, the first driving wheel is made to move to the bottom of the fifth connecting plate again, the first fixing plate is fixed, and the first fixing plate is prevented from moving when the volleyball frame is fixed; the sleeve plays a role in protecting the second connecting shaft, so that the second connecting shaft is prevented from moving when the volleyball frame is fixed in a specified place, and the fixing effect of the volleyball frame is ensured; when the first fixing plate does not limit the movable block, the sixth connecting plate is positioned at the top of the first fixing plate, and the first fixing plate provides a supporting function for the sixth connecting plate, so that the first push rod cannot move downwards, and the influence of continuous pressing of the sixth connecting plate on the normal use of the second connecting shaft when the volleyball stand is fixed is avoided; when the first driving wheel contacts with the fifth connecting plate, even though the sixth connecting plate is occasionally pushed to move downwards, the first return spring is still in an original long state and cannot influence the matching of the first driving wheel and the fifth connecting plate.

The side walls of two sides of the base 1 are respectively provided with a fourth groove, a support plate 120 is rotatably connected in the fourth groove, the bottom of the support plate is rotatably connected to the inner wall of the fourth groove, a sixth connecting rod 1201 is arranged on the support plate 120, the sixth connecting rod 1201 is of an arc-shaped structure, a fifth movable cavity 130 matched with the sixth connecting rod 1201 is arranged on the base 1, one end of the sixth connecting rod 1201 is provided with a second connecting block 1202, the second connecting block 1202 is provided with a first through hole 1203, the first through hole 1203 is of a conical structure, and the diameter of the first through hole at the top of the second connecting block is larger than that at the bottom of the second connecting block; when the volleyball frame is used, the volleyball frame is knocked down after being used, the support plate is thrown out of the fourth groove under the action of gravity and inertia when the volleyball frame is in an inclined state, the support plate drives the second connecting block to move in the fifth movable cavity when moving, and the airflow passes through the second connecting block from the first through hole on the side with the larger diameter, so that the support plate can be quickly turned down from the fourth groove; the backup pad contacts with ground when the base is not emptyd completely, and the base continues to be emptyd, and the second connecting block moves toward fifth activity intracavity, and the second connecting block is passed to the air current from less first through-hole diameter one side, provides the resistance for the second connecting block under the air current effect to topple over to cause certain resistance to the base, slow down volleyball frame power of turning on one's side, reduce volleyball frame damage degree, play the guard action to volleyball frame.

A through cavity 14 is formed in the base 1, a seventh connecting rod 1301 is arranged on the side wall of the supporting plate 120, a third connecting block 143 is arranged in the through cavity 14, a second movable groove 1302 is arranged at the bottom of the seventh connecting rod 1301, a connecting spring 1303 is arranged in the second movable groove 1302, a first limiting block 1204 is arranged at the bottom of the connecting spring 1303, a limiting groove matched with the first limiting block 1204 is formed in the third connecting block 143, a sixth movable cavity is arranged at the bottom of the limiting groove, a seventh connecting plate 1436 and an eighth connecting plate 1435 are movably connected in the sixth movable cavity, a second push rod 1431 is movably connected at one end of the eighth connecting plate 1435, a counterweight strip 141 is movably connected at the top of the through cavity 14, and a second limiting block 142 matched with the counterweight strip 141 is arranged on the inner wall of the through cavity 14; a seventh movable cavity 1433 is arranged on the inner wall of the sixth movable cavity, a fifth sliding block 1432 matched with the seventh movable cavity is arranged on the second push rod, a second return spring 1434 is arranged on the fifth sliding block, and a cambered surface is arranged at the bottom of the first limiting block; the two sides in the through cavity have the same structure and are symmetrically arranged; when the supporting plate is positioned in the fourth groove, the first limiting block is embedded in the limiting groove, and the laminated plate of the supporting plate is fixed under the mutual matching of the limiting groove and the first limiting block, so that the supporting plate is stably arranged in the fourth groove, and the supporting plate is prevented from being shaken out of the fourth groove in the moving process of the base; when the volleyball frame topples, the base is in an inclined state, the counterweight strip is turned over together with the base under the action of inertia, the counterweight strip impacts on the second push rod, the second push rod pushes the seventh connecting plate and the eighth connecting plate to rotate around the connecting point, so that the connecting point of the seventh connecting plate and the eighth connecting plate is arched upwards, the seventh connecting plate and the eighth connecting plate push the first limiting block to be separated from the limiting groove, the supporting plate is normally turned out from the fourth groove, and the supporting plate is used for providing a buffering effect for toppling of the base; under the mutual matching of the first limiting block and the limiting groove, the situation that the base throws the laminate out of the fourth groove in the moving process is effectively prevented, and the supporting plate is prevented from being blocked when the volleyball stand is normally carried; under the setting of second stopper, make the counter weight strip can only rotate toward a direction, guarantee the cooperation effect of counter weight strip and second push rod to make the backup pad turn out in the fourth recess fast when the base is emptyd.

The base is provided with a fifth cavity 13 and a sixth cavity 1400, the fifth cavity is communicated with the sixth cavity, the lifting assembly comprises a rubber sleeve 131 arranged in the fifth cavity, a third push rod 1401 arranged in the sixth cavity in a penetrating manner and a fourth push plate 1402 arranged at the bottom of the third push rod, the bottom of the rubber sleeve is provided with a bottom plate, the rubber sleeve can only longitudinally deform, the fourth push plate is provided with a second through hole 1404, the bottom of the second through hole is hinged with a sealing plate 1405, the bottom of the fourth push plate is also provided with a supporting block 1406 matched with the sealing plate, the bottom of the fourth push plate is provided with a third supporting spring 1403, the top of the third push rod is provided with a pedal 140, and the side wall of the rubber sleeve is provided with an air release hole; when the volleyball frame needs to be moved, the pedals are continuously treaded, the pedals push the fourth push plate to move downwards, when the fourth push plate moves downwards, the sealing plate turns upwards under the action of air flow to seal the second through hole, the air flow is introduced into the rubber sleeve under the action of the fourth push plate, when the fourth push plate moves upwards, the air flow pushes the sealing plate to turn downwards, the second through hole is opened to enable the air flow to normally pass, the air in the rubber sleeve starts to expand and deform after increasing, one end of the base is pushed to move upwards under the action of the rubber sleeve to enable the base to be slowly adjusted to be in a horizontal state, so that the second roller automatically falls out from the first opening, the first roller and the second roller are matched with each other to provide supporting force for the volleyball frame, and the volleyball frame can move conveniently; the rubber sleeve is protected under the action of the bottom plate, and the rubber sleeve is prevented from being damaged due to abrasion between the rubber sleeve and the bottom surface.

When the volleyball frame is moved, the sleeve is taken down from the connecting groove, the second connecting shaft is pushed to move towards the third movable cavity, the first driving wheel is moved away from the bottom of the fifth connecting plate, the second driving wheel is moved to the bottom of the fifth connecting plate, the pedal is repeatedly treaded, air flow is injected into the rubber sleeve, the rubber sleeve is deformed under the action of air pressure, the rubber sleeve pushes one end of the base to move upwards, the base is turned to be in a horizontal state, the second roller falls out from the first opening, the second roller drives the first connecting plate to rotate, the first connecting plate drives the second connecting plate to rotate, the movable block moves in the first movable groove along with the second connecting plate, the movable block is moved to one end of the first movable groove, the first fixing plate is pushed to be embedded into the first groove, the first fixing plate is fixed under the action of the second driving wheel, and the second connecting plate provides a supporting function for the first connecting plate, the air outlet hole of the rubber sleeve is opened, the rubber sleeve is reset, the weight of the volleyball frame is pressed on the first roller and the second roller, and the volleyball frame is convenient to move under the action of the first roller and the second roller; when the volleyball frame moves to the designated position, the pedal is repeatedly treaded again, the bottom plate is in contact with the ground, the second connecting shaft is pushed into the third movable cavity, the third driving wheel moves to the bottom of the fifth connecting plate to open the air outlet hole in the rubber sleeve, the rubber sleeve is gradually reset, one end of the base is inclined downwards after losing the supporting force, the second roller drives the first connecting plate to overturn under the gravity of the base, the second connecting plate overturns along with the first connecting plate, the movable block moves to the initial position, the movable block pushes the first fixing plate to reset, and the volleyball frame is fixed to the target site; gas is slowly released under the action of the rubber sleeve, so that the base is gradually inclined, and the base is prevented from directly falling on the ground and being protected.

Claims (10)

1. The utility model provides a fixing device of portable volleyball frame, includes base (1) and locates branch (2) on base (1), be equipped with first cavity (12) on base (1), base (1) both sides are equipped with first gyro wheel (11) respectively, two sets of first gyro wheels (11) link to each other its characterized in that through a first connecting axle (111): first cavity (12) bottom is equipped with first opening (121), first cavity (12) top is equipped with first activity groove (15), first cavity (12) top swing joint has first connecting plate (17), be equipped with movable block (16) in first activity groove (15), movable block (16) bottom swing joint has second connecting plate (163), second connecting plate (163) bottom swing joint in on first connecting plate (17), be equipped with on base (1) with movable block (16) matched with first fixed plate (110), first connecting plate (17) bottom is equipped with second gyro wheel (171), be equipped with on base (1) and lift the subassembly.

2. A portable racker fixing device as claimed in claim 1, wherein: be equipped with installation piece (18) in first cavity (12), be equipped with installation cavity (183) on installation piece (18), be equipped with second opening (184) on installation cavity (183) lateral wall, be equipped with in installation cavity (183) with second opening (184) matched with fly leaf (187), fly leaf (187) bottom is equipped with first supporting spring (1876), fly leaf (187) bottom is equipped with second fixed plate (1872), be equipped with on first connecting axle (111) with first annular of second fixed plate (1872) matched with (112), work as movable block (16) remove extremely when branch (2) was kept away from in first movable groove (15) one end, second fixed plate (1872) are embedded into in first annular (112).

3. A portable racker fixing device as claimed in claim 2, wherein: be equipped with first spout (151) on first activity groove (15) inner wall, be equipped with on activity piece (16) lateral wall with first spout (151) first slider (161) that cooperatees, be equipped with first activity chamber (19) on first activity groove (15) lateral wall, first activity chamber (19) bottom is equipped with the third opening, be equipped with head rod (164) on activity piece (16) lateral wall, head rod (164) bottom be equipped with third opening matched with first push pedal (165), swing joint has third connecting plate (181) on installation cavity (183) inner wall, third connecting plate (181) one end swing joint has fourth connecting plate (182).

4. A portable racker fixing device as claimed in claim 2, wherein: the movable plate (187) is provided with a second cavity (1871), the second fixing plate (1872) is provided with a third cavity (1873) communicated with the second cavity (1871), the top of the movable plate (187) is provided with a second push plate (186), the bottom of the second push plate (186) is provided with a second connecting rod (1861), the second connecting rod (1861) penetrates through the second cavity (1871), the bottom of the second connecting rod (1861) is provided with a third push plate (1862), the bottom of the third push plate (1862) is provided with a second supporting spring (1863), two sides of the third cavity (1873) are respectively provided with a fourth cavity (1874) communicated with the third cavity (1873), and an air bag (1875) is arranged in the fourth cavity (1874).

5. A portable racker fixing device as claimed in claim 1, wherein: be equipped with first connecting block (162) on movable block (16), be equipped with on first connecting block (162) with first fixed plate (110) matched with first recess, be equipped with second spout (1501) on base (1), first fixed plate (110) bottom be equipped with second spout (1501) matched with second slider (1103), second spout (1501) bottom is equipped with second activity chamber (150), be equipped with third activity chamber (1600) on base (1), wear to be equipped with second connecting axle (160) in the third activity chamber (1600), second slider (1103) bottom be equipped with second connecting axle (160) matched with fifth connecting plate (1102).

6. A portable volleyball frame fixing apparatus according to claim 5, wherein: be equipped with on second connecting axle (160) with fifth connecting plate (1102) matched with first drive wheel (1601), second drive wheel (1602) and third drive wheel (1603), first drive wheel (1601) link firmly in on second connecting axle (160), third drive wheel (1603) cover is located on second connecting axle (160), be equipped with the second annular on second connecting axle (160), second drive wheel (1602) are located in the second annular, be equipped with a plurality of dogteeth in the second annular, dogtooth one side is arc surface structure.

7. A portable volleyball frame fixing apparatus according to claim 5, wherein: a fixing ring (1100) is arranged on the inner wall of the third movable cavity (1600), the fixing ring (1100) is fixedly connected into the third movable cavity (1600) through a third connecting rod, and the second connecting shaft (160) penetrates through the fixing ring (1100); be equipped with fourth activity chamber (190) on third activity chamber (1600) lateral wall, wear to be equipped with dead lever (170) on fourth activity chamber (190) lateral wall, dead lever (170) both ends are equipped with first spacing spring (1701), dead lever (170) middle part be equipped with second connecting axle (160) matched with second recess, be equipped with backing sheet (1704) on the second recess inner wall, backing sheet (1704) are made for elastic material, be equipped with on second connecting axle (160) a plurality of with backing sheet (1704) matched with third recess (1605).

8. A portable racker fixing device as claimed in claim 7, wherein: a fourth connecting rod (1702) is arranged on the fixing rod (170), a fifth connecting rod (1703) is movably connected to the fourth connecting rod (1702), a first push rod (180) is arranged at the top of the fifth connecting rod (1703), the first push rod (180) is arranged in the fourth movable cavity (190) in a penetrating mode, and a sixth connecting plate (1801) is arranged at the top of the first push rod (180); second connecting axle (160) one end is equipped with first reset spring (1604), be equipped with spread groove (1500) on base (1), there is sleeve (1300) through threaded connection in spread groove (1500).

9. A portable racker fixing device as claimed in claim 1, wherein: the improved structure of the automobile seat is characterized in that a fourth groove is formed in the side wall of the base (1), a supporting plate (120) is rotatably connected in the fourth groove, a sixth connecting rod (1201) is arranged on the supporting plate (120), the sixth connecting rod (1201) is of an arc-shaped structure, a fifth movable cavity (130) matched with the sixth connecting rod (1201) is formed in the base (1), a second connecting block (1202) is arranged at one end of the sixth connecting rod (1201), a first through hole (1203) is formed in the second connecting block (1202), and the first through hole (1203) is of a conical structure.

10. A portable racker fixing device as claimed in claim 9, wherein: a through cavity (14) is arranged on the base (1), a seventh connecting rod (1301) is arranged on the side wall of the supporting plate (120), a third connecting block (143) is arranged in the through cavity (14), a second movable groove (1302) is arranged at the bottom of the seventh connecting rod (1301), a connecting spring (1303) is arranged in the second movable groove (1302), a first limiting block (1204) is arranged at the bottom of the connecting spring (1303), a limit groove matched with the first limit block (1204) is arranged on the third connecting block (143), a sixth movable cavity is arranged at the bottom of the limit groove, a seventh connecting plate (1436) and an eighth connecting plate (1435) are movably connected in the sixth movable cavity, one end of the eighth connecting plate (1435) is movably connected with a second push rod (1431), lead to chamber (14) top swing joint has counter weight strip (141), lead to be equipped with on chamber (14) inner wall with counter weight strip (141) matched with second stopper (142).

Images