CN113491397B - Support column of suspension type commodity shelf - Google Patents

Abstract

The invention discloses a supporting column of a suspended commodity shelf, which comprises a fixed pipe connected with a suspended fixed piece, a movable pipe in sliding fit with the fixed pipe, a motor connected with the suspended fixed piece, a screw rod connected with the motor through a transmission mechanism and driven to rotate, and a screw rod nut screwed with the screw rod, wherein the screw rod nut is connected with the upper end of a supporting pipe, and the lower end of the supporting pipe is connected with the movable pipe and a loading platform connecting piece through a movable pipe connecting piece; the top end of the movable tube is fixed with an axial limiting component which prevents the top end of the movable tube from being lower than the top end of the supporting tube so as to prevent the movable tube and the connecting piece of the loading platform from being separated from the supporting tube; the external thread of the screw rod nut is screwed with the internal thread at the upper end of the supporting tube; an axial limiting structure which prevents the screw rod from being separated from the bottom plate of the motor shell connected with the hanging fixing piece is arranged between the top of the screw rod and the bottom plate of the motor shell. The support column can be lifted, does not shake in the lifting process and the static state, and can prevent the movable tube and the connecting piece of the object carrying platform from falling off.

Description

Support column of suspension type commodity shelf

Technical Field

The invention relates to the technical field of indoor storage devices, in particular to a supporting column of a suspension type storage rack.

Background

Garages, storerooms, families or office places generally need the commodity shelf to place articles, and traditional commodity shelves are floor type, and in order to save indoor space, later most of the traditional commodity shelves are wall-mounted commodity shelves or suspension type commodity shelves or inversion commodity shelves, and the latter are generally fixed on ceilings or house beams. Compared with a floor type commodity shelf and a wall-mounted commodity shelf, the suspension type commodity shelf has the advantage of occupying no activity space of people.

The supporting columns or columns of the suspended article rack in the prior art are generally fixed and cannot be lifted, and the article is inconvenient to place or take. And in order to realize going up and down, prior art all adopts pulley stay cord device to go up and down, and cargo platform rocks easily at the lift in-process, and cargo platform is unfixed when taking and putting article, neither conveniently takes, lacks the sense of security again. However, if the lifting column of the electric lifting desk is used as the supporting column of the suspended shelf, there is at least the following disadvantage that the lifting column of the electric lifting desk is raised or lowered on the ground, so that it has no safety structure for preventing the movable tube, the connecting member of the loading platform and the loading platform connected with the connecting member from falling off or falling down, and thus it cannot be used as the supporting column of the suspended shelf. If the lifting upright post of the electric lifting office table is used as the supporting post of the suspension type commodity shelf, the electric lifting office table also has the defects of incapability of bearing stronger axial tension and insufficient suspension strength.

Disclosure of Invention

The technical problem to be solved by the invention is to provide a support column of a suspension type storage rack, which can be lifted, does not shake in the lifting process and the static state, and can prevent a movable pipe and a connecting piece of a loading platform from falling off.

The technical scheme of the invention is that the support column of the suspension type commodity shelf comprises a fixed pipe connected with a suspension fixing piece, a movable pipe in sliding fit with the fixed pipe, a motor connected with the suspension fixing piece, a screw rod connected with the motor through a transmission mechanism and driven to rotate, and a screw rod nut screwed with the screw rod, wherein the screw rod nut is connected with the upper end of a support pipe, and the lower end of the support pipe is connected with the movable pipe and a connecting piece of a loading platform through a connecting piece of the movable pipe; a limiting component is arranged between the top end of the movable pipe and the top end of the supporting pipe and used for preventing the movable pipe and the connecting piece of the carrying platform from being separated from the supporting pipe.

After adopting the structure, the support column of the suspension type commodity shelf has the following advantages: the support column is simple in structure. Because the fixed pipe and the activity pipe of being connected with the suspension mounting and the cargo platform connecting piece sliding fit, can be according to the height of people with cargo platform lift to the height that is most suitable for placing or taking article, and because the lift column is the rigidity piece, the cargo platform who is connected with the cargo platform connecting piece is also relatively fixed, can guarantee that the cargo platform does not rock when going up and down and can the sharp stability go up and down, and it is all convenient to take article during static, and has the sense of security. And because the top of the movable tube is fixed with the axial spacing component which prevents the bottom end of the movable tube from being lower than the top end of the supporting tube so as to prevent the outer tube and the loading platform connecting piece from separating from the supporting tube and further prevent the loading platform connected by the loading platform connecting piece from separating or falling, in other words, the spacing component is arranged between the top end of the movable tube and the top end of the supporting tube and is used for preventing the movable tube and the loading platform connecting piece from separating from the supporting tube, namely, the safety structure for preventing the movable tube and the loading platform connecting piece and the loading platform connected with the movable tube and the loading platform connecting piece from falling off is provided, so that the safety accident can be effectively prevented, and the supporting column of the suspension type storage rack has safety guarantee and provides safe and reliable supporting columns for popularization and use of the suspension type storage rack.

Furthermore, the axial limiting assembly comprises a connecting block welded with the periphery of the movable pipe at the periphery, the middle of the connecting block is a hollow hole sleeved outside the supporting pipe, the axial limiting block is arranged below the connecting block, a through hole sleeved outside the supporting pipe is arranged in the middle of the axial limiting block, the through hole is a third through hole, and the connecting block is in threaded connection with the axial limiting block through a plurality of locking screws. After the spacing subassembly of axial adopted above concrete structure, its simple structure, firm in connection is reliable, and under any circumstance, movable tube and cargo platform connecting piece and the cargo platform of being connected with the cargo platform connecting piece can not throw off the stay tube and fall, can guarantee the security of falling of the cargo platform of the suspension type supporter that this support column was used effectively all the time, effectively prevented the emergence of incident.

Furthermore, the fixed pipe is a rectangular outer pipe, the movable pipe is a rectangular inner pipe, outward convex blocks are arranged on the periphery of the connecting block, and notches for embedding the convex blocks are arranged on the four walls of the top end of the rectangular inner pipe. After the structure is adopted, after the lug is embedded with the notch, the periphery of the connecting block is welded with the periphery of the rectangular inner tube, and the periphery of the connecting block is embedded with the four walls of the rectangular inner tube and welded in a staggered mode, so that the connecting block and the rectangular inner tube are connected more firmly, and the axial tension and the hanging strength of the support column are enhanced.

Further, a plurality of sliding guide members for facilitating sliding and guiding between the two pipes are provided between the rectangular inner pipe and the rectangular outer pipe, each sliding guide member is formed in a rectangular shape, and one of the sliding guide members is connected to an outer peripheral surface of an upper end of the rectangular inner pipe. By adopting the structure, the guide performance between the inner pipe and the outer pipe is better when the support column is lifted, the lifting operation is more stable, reliable and rapid, the working reliability is stronger, and the operation failure rate is lower.

Furthermore, the external thread of the screw rod nut is screwed with the internal thread at the upper end of the supporting tube. After the structure is adopted, the screw rod nut is in threaded connection with the upper end of the supporting tube, compared with the screw, rivet and the like in the prior art, the connection area is enlarged by dozens of times, dozens of times or even hundreds of times, namely, the whole outer circumference of the screw rod nut is in threaded connection with the 360-degree inner wall of the upper end of the supporting tube, so that the connection between the supporting tube and the screw rod nut is firmer, the axial tension and the suspension strength of the supporting column are enhanced, the axial limiting component fixedly connected with the movable tube such as a rectangular inner tube can simultaneously have the axial limiting effect of preventing the screw rod nut from moving upwards and separating from the upper end of the supporting tube, double insurance is provided for preventing the outer tube, a connecting piece of the carrying platform and the carrying platform from falling, the safety of the suspension type storage rack using the supporting column is further ensured, and the occurrence of safety accidents is further effectively prevented.

Furthermore, the internal thread at the lower end of the supporting tube is in threaded connection with the external thread of the cylinder of the movable tube connecting piece, the rectangular connecting plate of the movable tube connecting piece is in threaded connection with the cylinder through a central large screw and a plurality of planetary small screws, and the periphery of the rectangular connecting plate is fixedly connected with the rectangular movable tube; the periphery of the rectangular hole of the loading platform connecting piece is fixedly connected with the rectangular movable tube. By adopting the structure, the connection between the lower end of the supporting tube and the movable tube connecting piece is firmer, so that the axial tension and the suspension strength of the supporting column are further enhanced.

Furthermore, lubricating grease is arranged in the supporting tube and on the screw rod; the bottom of the screw rod is in running fit with a radial limiting block and is axially limited, and the supporting tube vertically enables the radial limiting block to slide relative to the inner wall of the supporting tube. After the structure is adopted, the radial limiting blocks play a role in radial limiting, and the radial limiting blocks have the lubricating function of lubricating grease, so that the guidance quality, the working flexibility, the stability and the reliability of the linear lifting mechanism are higher, the failure rate is low, the service life of the supporting column of the suspended commodity shelf is prolonged, and the noise is greatly reduced. The radial limiting block has a great effect of preventing the screw rod from being separated from the screw rod nut so as to provide a safety function, and the support tube, the rectangular inner tube connected with the support tube and the carrying platform connected with the support tube cannot fall off to ensure safety.

Furthermore, an axial limiting structure for preventing the screw rod from being separated from the motor shell bottom plate connected with the hanging fixing piece is arranged between the top of the screw rod and the motor shell bottom plate. After adopting above structure, the incident of can not taking place declutching between lead screw and the suspension mounting provides safety to the safety of this suspension type supporter's support column once more.

Furthermore, the connecting block and the axial limiting block are formed by punching a rectangular steel plate, wherein the axial limiting block is a punched middle small block, and the middle small block is screwed by a locking screw after rotating a certain angle of 30-60 degrees relative to the hollow-out part punched by the connecting block. After the structure is adopted, on the premise of meeting the safety requirement and improving the axial tension and the suspension strength of the support column, one steel plate is used for stamping two parts, namely the connecting block and the axial limiting block, so that the material cost and the labor cost of the axial limiting assembly are saved.

Drawings

Fig. 1 is a schematic view of a three-dimensional shape structure of a supporting column of a hanging shelf of the present invention.

Fig. 2 is a schematic view of the exploded structure of fig. 1.

Fig. 3 is a schematic structural view of fig. 1 with a motor housing and a fixing tube such as an outer tube omitted.

Fig. 4 is a schematic view of the partially exploded structure of fig. 1 viewed from the bottom side.

Figure 5 is a schematic longitudinal section of the support column of figure 1 with the motor and drive connection omitted.

Fig. 6 is an enlarged structural view of a in fig. 5.

Fig. 7 is an enlarged structural view of B in fig. 5.

Fig. 8 is a schematic diagram of a partially exploded structure of fig. 1 with the motor housing and the outer tube omitted.

Fig. 9 is an enlarged schematic view of C in fig. 8.

Shown in the figure: 1. the motor comprises a motor shell, 2, a rectangular outer tube, 3, a rectangular inner tube, 4, a loading platform connecting piece, 5, a motor shell cover, 6, a gear box, 7, a motor shell bottom plate, 8, a screw rod, 9, an axial limiting component, 10, a screw rod nut, 11, a radial limiting block, 12, a locking nut, 13, a supporting tube, 14, a movable tube connecting piece, 15, a notch, 16, a sliding guide piece, 17, a servo motor, 18, a transmission mechanism, 19, a cylinder, 20, a rectangular connecting plate, 21, a first through hole, 22, a first threaded hole, 23, a second threaded hole, 24, a hollow part, 25, a second through hole, 26, a locking screw, 27, a connecting block, 28, an axial limiting block, 29, a third through hole, 30 and a lug.

Detailed Description

The following description of the embodiments of the present invention will be made with reference to the accompanying drawings. It is to be noted that the description of the embodiments is provided to aid understanding of the present invention, and is not intended to limit the present invention. In addition, the technical features involved in the respective embodiments of the present invention described below may be combined with each other as long as they do not conflict with each other.

As shown in fig. 1, 2, 3, 4, 5, 6, 7, 8 and 9.

As shown in fig. 1 and 2, the present invention is a supporting column of a hanging shelf. The supporting column of the suspension type shelf can also be called as a column or a connecting column or a lifting supporting column of the suspension type shelf. The support column of the suspension type commodity shelf comprises a fixed pipe connected with a suspension fixing piece, wherein the suspension fixing piece is not shown in the figure and generally comprises a cross rod, and the cross rod is provided with a plurality of through holes for penetrating expansion screws to be fixed on a ceiling or a house beam. Fixed pipe is connected with hanging the mounting indirectly as rectangle outer tube 2, if the top of rectangle outer tube 2 frame all around is fixed like the welding with motor housing bottom plate 7, hangs the diaphragm of mounting and two vertical connecting plates fixed like the welding or through the screw spiro union, two vertical connecting plates are fixed like the welding or through the screw spiro union with housing bottom plate 7.

As shown in fig. 2 and 3, the support column of the suspension type shelf of the present invention further comprises a movable tube such as a rectangular inner tube 3 slidably engaged with a fixed tube such as a rectangular outer tube 2, a motor such as a servo motor 17 or a stepping motor connected with a suspension fixture, a screw 8 connected with the motor such as the servo motor 17 through a transmission mechanism 18 and driven to rotate, a screw nut 10 screwed with the screw 8, the screw nut 10 connected with the upper end of a support tube 13, and the lower end of the support tube 13 connected with the movable tube such as the rectangular inner tube 3 and a loading platform connecting member 4 through a movable tube connecting member 14 such as an inner tube connecting member. A transmission mechanism 18 such as a transmission rod connected to the shaft of the servomotor and a pair of bevel gears mounted in the gear box 6 connected to the transmission rod. The servo motor 17 is mounted on the motor housing base plate 7 of the motor housing 1, the motor housing 1 comprises the motor housing base plate 7 and the motor housing cover 5 covering the motor housing base plate, and the motor housing cover 5 and the motor housing base plate 7 are screwed into respective threaded holes in the motor housing base plate 7 through respective through holes of the motor housing cover 5 by a plurality of, for example, four screws. The gearbox 6 may also be called a head.

As shown in fig. 2, 5, 7 and 4, a limiting component 9 is arranged between the top end of the movable tube and the top end of the supporting tube for preventing the movable tube and the cargo platform connecting piece 14 from separating from the supporting tube 13, in other words, the top end of the movable tube such as the rectangular inner tube 3 is fixed with an axial limiting component 9 which prevents the top end of the movable tube such as the rectangular inner tube 3 from being lower than the top end of the supporting tube 13 so as to prevent the movable tube such as the rectangular inner tube 3 and the cargo platform connecting piece 4 from separating from the supporting tube 13. It is understood that, as shown in the figure, under normal conditions, the cylinder 19 of the movable tube connecting piece 14 is in threaded connection with the bottom end of the support tube 13 through internal and external threads, the cylinder 19 is in threaded connection with the rectangular connecting plate 20 through a plurality of screws, the periphery of the rectangular connecting plate 20 is fixedly connected with the movable tube, namely, the inner wall of the bottom end of the rectangular inner tube 3, for example, welded, if the screws are loosened, only from the lower end, the rectangular connecting plate 20 is separated from the cylinder 19, namely, from the bottom end of the support tube 13, the object carrying platform carrying load bearing can drive the rectangular inner tube 3 and the rectangular connecting plate 20 welded together through the object carrying platform connecting piece 4 to fall, but when the movable tube falls like the rectangular inner tube 3, the axial limiting component 9 welded and fixed to the top end of the rectangular inner tube 3 is axially limited by the top end of the screw nut 10 screwed on the screw rod 8, and the movable tube like the rectangular inner tube 3 and the object carrying platform connecting piece 4 and the object carrying platform connected therewith are prevented from being separated from and falling. The specific structure of the cylinder 19 and the rectangular connecting plate 20 screwed by a plurality of screws is that the bottom end of the cylinder 19 is provided with a plurality of first threaded holes 22 such as a central large threaded hole and four small threaded holes surrounding the central large threaded hole, and the rectangular connecting plate 20 is provided with a plurality of first through holes 21 such as a central large through hole and four small through holes surrounding the central large through hole.

As shown in fig. 8 and 9, the axial limiting component 9 includes a connecting block 27 whose periphery is welded to the periphery of the movable tube, such as the periphery of the rectangular inner tube 3, the middle of the connecting block 27 is a hollow 24 which is sleeved outside the support tube 13, such as the circular support tube, the axial limiting block 28 is arranged below the connecting block 27, a through hole, such as a third through hole 29, which is sleeved outside the support tube 13 is arranged in the middle of the axial limiting block 28, the connecting block 27 and the axial limiting block 28 are screwed by a plurality of locking screws 26, such as two second through holes 25, if the connecting block 27 is provided with two second through holes 25, two corresponding second threaded holes 23 are arranged on the axial limiting block 28, and the two locking screws 26 pass through the respective second through holes 25 and are screwed into the respective second threaded holes 23.

As shown in fig. 8 and 9, the connecting block 27 and the axial limiting block 28 are preferably formed by stamping a rectangular steel plate, wherein the axial limiting block 28 is a stamped middle small block, that is, the shape of the axial limiting block 28 is the same as that of the hollow 24 in the middle of the connecting block 27, the middle small block, that is, the axial limiting block 28 is screwed with the hollow 24 stamped in the connecting block 27 through the locking screw 26 after rotating a certain angle, for example, 30 to 60 degrees, although the rotation of a certain angle may include other angles.

As shown in fig. 8 and 9, the fixed tube is preferably a rectangular outer tube 2, the movable tube is preferably a rectangular inner tube 3, outward protrusions 30 are provided around the connecting block 27, and notches 31 for fitting the protrusions 30 are provided on the four walls of the top end of the rectangular inner tube 3.

As shown in fig. 2, 3 and 6, a plurality of sliding guides 16 are disposed between the rectangular inner tube 3 and the rectangular outer tube 2 for facilitating sliding and guiding between the two tubes, each sliding guide 16 is formed in a rectangular shape, one sliding guide 16 is connected to an outer circumferential surface of an upper end of the rectangular inner tube 3, for example, screwed with a screw, and the other sliding guide is sleeved on an upper portion of the rectangular inner tube 3, and can be fixed or can be allowed to slide up and down between the rectangular inner tube 3 and the rectangular outer tube 2.

As shown in fig. 5 and 6, the external thread of the lead screw nut 10 is screwed with the internal thread at the upper end of the support tube 13, i.e. the lead screw nut 10 is screwed with the internal and external threads at the upper end of the support tube 13.

As shown in fig. 2, 4, 5, 7 and 8, the internal thread of the lower end of the support pipe 13 is screwed with the external thread of the cylinder 19 of the movable pipe coupling 14, i.e., the lower end of the support pipe 13 is screwed with the cylinder 19 via the internal and external threads. The rectangular connecting plate 20 of the movable pipe connecting piece 14 is in threaded connection with the column 19 through a central large screw and a plurality of planetary small screws, and the periphery of the rectangular connecting plate 20 is fixedly connected with the periphery of the inner wall of the rectangular movable pipe such as the rectangular inner pipe 3 through welding or threaded connection through screws. The periphery of the rectangular hole of the loading platform connecting piece 4 is fixedly connected with the periphery of a rectangular movable pipe such as the outer wall of the rectangular inner pipe 3 by welding or screw connection.

Lubricating grease is arranged in the supporting tube 13 and on the screw rod 8. As shown in fig. 2, 5 and 8, a radial limiting block 11 is rotatably fitted at the bottom of the screw rod 8 and axially limited by a lock nut 12 screwed on an external thread at the bottom end of the screw rod 8, and the support tube 13 vertically slides the radial limiting block 11 relative to the inner wall of the support tube 13.

The movable tube connector 14 may also be referred to as an outer tube connector. Support tube 13 is also known in the industry as an aluminum connector tube. The feed screw nut 10 is also called a feed screw nut. The rectangular connecting plate 20 may also be called a rectangular connecting block. The screws, central large screw and planetary small screw described above are not shown in the figures.

The fixed connection is fixed connection, such as welding, screw connection and the like.

The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims (8)

1. The utility model provides a support column of suspension type supporter which characterized in that: the device comprises a fixed pipe connected with a suspension fixing piece, a movable pipe in sliding fit with the fixed pipe, a motor connected with the suspension fixing piece, a screw rod connected with the motor through a transmission mechanism and driven to rotate, and a screw rod nut screwed with the screw rod, wherein the screw rod nut is connected with the upper end of a supporting pipe, and the lower end of the supporting pipe is connected with the movable pipe and a connecting piece of a carrying platform through a connecting piece of the movable pipe; a limiting component is arranged between the top end of the movable pipe and the top end of the supporting pipe and is used for preventing the movable pipe and the connecting piece of the object carrying platform from being separated from the supporting pipe; the connecting block and the axial limiting block in the limiting assembly are formed by stamping a rectangular steel plate, wherein the axial limiting block is a stamped middle small block, and the middle small block is screwed by a locking screw after rotating a certain angle relative to the hollow-out of the connecting block.

2. The support post of hanging shelf of claim 1 wherein: the axial limiting assembly comprises a connecting block fixedly connected with the movable pipe, the middle of the connecting block is a hollow part sleeved outside the supporting pipe, an axial limiting block is arranged below the connecting block, a through hole sleeved outside the supporting pipe is arranged in the middle of the axial limiting block, and the connecting block is in threaded connection with the axial limiting block through a plurality of locking screws.

3. The post of claim 2 in which: the fixed pipe is the rectangle outer tube, and the activity pipe is the rectangle inner tube, all has outside lug around the connecting block, has the breach of the respective lug of gomphosis on the four walls on rectangle inner tube top.

4. The post of claim 3 for hanging shelf wherein: a plurality of sliding guide pieces which are convenient for sliding and guiding between the two pipes are arranged between the rectangular inner pipe and the rectangular outer pipe, each sliding guide piece forms a rectangle, and one sliding guide piece is connected to the outer peripheral surface of the upper end of the rectangular inner pipe.

5. The support post of hanging shelf of claim 1 wherein: the external thread of the screw rod nut is screwed with the internal thread at the upper end of the supporting tube.

6. The support post of hanging shelf of claim 1 wherein: the internal thread at the lower end of the supporting tube is in threaded connection with the external thread of the cylinder of the movable tube connecting piece, the rectangular connecting plate of the movable tube connecting piece is in threaded connection with the cylinder through a central large screw and a plurality of planetary small screws, and the periphery of the rectangular connecting plate is fixedly connected with the rectangular movable tube; the periphery of the rectangular hole of the loading platform connecting piece is fixedly connected with the rectangular movable pipe.

7. The support post of hanging shelf of claim 1 wherein: lubricating grease is arranged in the supporting tube and on the screw rod; the bottom of the screw rod is rotatably matched with a radial limiting block and axially limited, and the supporting tube moves up and down while the radial limiting block slides relative to the inner wall of the supporting tube.

8. The support post of hanging shelf of claim 1 wherein: an axial limiting structure for preventing the screw rod from being separated from a motor shell bottom plate connected with the hanging fixing piece is arranged between the top of the screw rod and the motor shell bottom plate.

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