LU503959B1 - A safe moving device for the transfer of building materials - Google Patents

Abstract

The present invention relates to the technical field of construction tools, particularly to a safe displacement device for the transfer of construction materials, comprising a base plate, a skirt assembly, a height limit assembly, a protection assembly, a limit assembly and a hook assembly, the lower end of the base plate being symmetrical is provided with a number of displacement wheels, the upper end of the base plate is horizontally provided with a laying table and the edging assembly is movably arranged via a positioning assembly on both sides of the laying table, the edging assembly includes a series of pivoting flaps, a series of tilt-adjustable pivoting flaps in the edging assembly in conjunction with the height limiter assembly, allows rapid and multi-directional enclosing to improve safety when transporting bars or pipe material, when transporting small quantities of building materials, the four-sided protection provided by the enclosure assembly and the protection assembly increases safety, and the use of the limiter and the Hooking assembly is simple and easy to use, and the device saves time and effort and has a wide range of applications.

Description

A safe transfer device for the transfer of building materials LU503959

Technical part

The present invention relates to the technical field of construction tools, in particular to a safe displacement device for the transfer of construction materials.

Technology in the background

Building materials are the various materials used in construction work, and there are many different types of building materials including metallic and non-metallic materials;

When building materials are moved and transferred around the construction site, most

Operations are carried out manually or with the help of trolleys, but the efficiency of manual handling is low and the labor cost is high, time-consuming and labor-intensive, traditional trolleys are small, and when transporting long

Pipe structures with smooth surfaces or large and small quantities of

Building materials, it can easily happen that the building materials roll down and the

Accidentally injure construction personnel, which poses a safety risk to construction site safety and makes it extremely inconvenient to use.

Content of the invention

The aim of the present invention is to provide a safe transfer device for the transfer of building materials in order to solve the problems of the prior art.

To achieve this, the present invention provides the following technical solution:

A safe shifting device for the transfer of building materials, with the safe

Shifting device for the transfer of building materials includes:

Base plate, with the base plate at the bottom symmetrically with a number of

Displacement wheels and at the upper end of the base plate are provided horizontally with a laying table;

Bezel assembly, which is located on both sides of the by means of a positioning assembly

Laying table is movably attached, with the edging assembly having a number of

Swing flaps and the positioning assembly includes a lifting block and two

includes mounting rods;

Height limiting assembly, wherein the height limiting assembly is by means of a

The lifting assembly is movable above the base plate, the height limiting assembly is two

Cross beam includes, wherein the lifting assembly includes a lifting pin and a lifting support;

Protection assembly provided at the lower end of the cross member, the

Protection assembly includes a changing box;

Limit assembly, the limit assembly being provided on a side of the changing box, and the limit assembly comprising a limit ring;

Hooking assembly, the hooking assembly being on four sides of the top of the

Base plate is provided and the Finhakassembly includes four hook boxes.

Preferably, the first shaft slot is opened symmetrically on both sides of the said laying table, the first shaft slot is horizontally provided with a fixed shaft rod, a number of pivoting flaps are each mounted on one side of the fixed shaft rod, the fixed shaft rod is symmetrically integrated into a number of pivoting flaps two

Mounting slot sets inserted on each side, the mounting slot set includes two

Rod slots and the two rod slots are offset horizontally and inclined.

The pivoting flap is preferably provided with a recess on one side

The lifting block is movably inserted into the recess, the lifting block is on one side through dir503959

Opening provided with an escape slot, the recess is provided on one side with a lug plate, the lug plate is provided through the inserted evasion slot, the evasion slot is symmetrically provided with a number of spring bars, the lug plate is arranged on one side of the escape slot and is movable connected to one side of a number of spring bars, the spring bars are all connected on one side with a stabilizing spring, the stabilizing spring is placed in contact with one side of the lug plate, two fastening bars are symmetrically on one side of the

Lifting blocks set, and one side of each of the two mounting rods is through the side of the

Pivot flap inserted into one of the rod slots of the two mounting slot sets.

Preferably, the upper end of the laying table is horizontal with a second

Wave slot provided near the first wave slot, the second wave slot is provided horizontally with a horizontal shaft, the upper end of the horizontal shaft is symmetrically connected with a number of baffles, a number of baffles is on one side with a torsion spring with the horizontal shaft connected, and a number of

Baffles are brought into contact with a number of pivot flaps on one side.

Preferably, in the middle of the top of the base plate is provided vertically with a support frame, the lifting support is attached to both sides of the support frame by horizontal struts on both sides, the lifting bolt is attached vertically in the middle of the support frame by means of a bearing, the center of the lifting support is vertical with a threaded tube provided, the lifting bolt is screwed into the threaded tube of the lifting support through a thread.

Preferably, the lifting support is provided on the side of the horizontal symmetrical two overhanging rod, two cross beams are at the top with two overhanging

Rods connected, two cross beams are horizontally provided with a winding box at the bottom end, the winding box is inserted through the bearing of the horizontal winding shaft, which

Winding shaft is placed in the winding box, which is wrapped with a protective cloth, and the

Protective cloth is provided with a horizontal plate at the bottom of the changing box.

Preferably, the changing box is provided horizontally with a shell seat on one side, the winding shaft is inserted horizontally through the center of the shell seat, the shell seat is opened with a shell slot on one side, the winding shaft is inserted into the shell slot with a

Take-up spool inserted on one side.

Preferably, a recess is opened on one side of said shell slot

Limit ring is movably inserted into the recess, a number of guide rods are symmetrically provided in the recess, a number of retaining slots are symmetrically opened on one side of the limit ring, and a number of guide rods are inserted through the retaining slots on one side of the limit ring and with retaining blocks provided, the guide rods are arranged in the recess on the side of the return spring, the inside of the disc slot is provided with internal threads, the disc slot is inserted with a crimping ring through the internal threads, and the crimping ring is inserted into the

Disc slot inserted on the side that contacts the side of the restriction ring.

Preferably, the limit ring near the take-up spool side is symmetrically provided with a number of limit blocks, the take-up spool side is symmetrically opened with a number of limit slots, a number of limit blocks are each inserted into a number of limit blocks.

Preferably, the lower end of the horizontal plate is symmetrical on both sides with two

Hanging rings, four hanging rings are in the four fin hook boxes directly above the

Adjustment arranged, the upper end of the four hook boxes is opened with a connecting slot, the connecting slot is opened with an arcuate slot, the arcuate

Slot is opened on one side with a tongue groove, the arcuate slot is movably inserted with the arcuate hanging rod, the tongue groove is arcuate with the

Hanging spring inserted on one side, the arc-shaped hanging rod is inserted into the spring slot on one side and placed in contact with the hanging spring on one side, the arc-shaped hanging rod 1st placed in the spring groove on one side with a tension block, the

Spring groove is opened with a rod-shaped slot through the hanging box on one side, the pull block is set through the inserted rod-shaped slot, securing both

On both sides of the laying table, the lower end of the hanging ring is inserted into the connecting slot, the arcuate hanging rod is inserted into the connecting slot on one side and hooked on the lower end of the hanging ring, and the upper end of the arcuate hanging rod is inserted into the connecting slot with an inclined surface.

Compared with the prior art, the present invention has the following advantages

Effects:

Fine series of tilt-adjustable swing flaps in the enclosure assembly, in conjunction with the height limit assembly, allows for rapid and multi-directional enclosure to improve safety when transporting rods or pipe material, when transporting small quantities of building materials, the four-sided protection provided by the enclosure assembly and protection assembly increases safety , and the use of the limiting device and the hook assembly is simple and easy to use, and the

Device saves time and effort and has a wide range of applications.

Description of the attached drawings

Figure 1 shows a schematic representation of the structure of the present invention;

Figure 2 shows a schematic representation of part A of Figure 1 of the present invention;

Figure 3 shows a schematic representation of part B of Figure 1 of the present invention;

Figure 4 shows a schematic diagram of the connection of the suspension ring of the present invention;

Figure 5 shows a schematic representation of the three-dimensional structure of the present

Invention;

Figure 6 shows a schematic representation of the local connection structure of the fixed

shaft rod of the present invention;

Figure 7 shows a schematic representation of the structure of the restriction ring of the present invention.

In the picture: base plate 1, displacement wheel 2, laying table 3, fixed shaft rod 4,

Fastening slot set 5, swing flap 6, lifting block 7, escape slot 8, lug plate 9,

Spring rod 10, stabilizing spring 11, fastening rod 12, crushing ring 13, horizontal shaft 14, impact plate 15, support frame 16, lifting support 17, lifting bolt 18, cross member 19, changing box 20, protective cloth 21, horizontal plate 22, suspension ring 23, winding shaft 24, bucket seat 25,

Take-up reel 26, limiting ring 27, guide rod 28, return spring 29,

Limiting block 30, limiting slot 31, hooking box 32, arcuate suspension rod 33, suspension spring 34.

Detailed description

The technical solutions in the embodiments of the present invention are given in ih}/903959

The embodiments of the present invention will be clearly and fully described below in conjunction with the accompanying drawings, and it will be clear that those described

Embodiments are only a part of the embodiments of the present invention, and not all of them. Based on the embodiments of the present invention, all other embodiments achieved by one skilled in the art without any creative work are within the scope of the present invention.

Referring to attached images 1-7, the application shows the following five

Embodiments of the preferred solution.

Embodiment 1

The safe shifting device for the transfer of building materials consists of a

Base plate 1 with a number of displacement wheels 2, which are symmetrical at the lower end of the

Base plate 1 are arranged, and a laying table 3, which is horizontal at the upper end of the

Base plate 1 is arranged, the enclosure assembly is movable on both sides of the laying table 3 by means of a positioning assembly comprising a number of pivot flaps 6, the positioning assembly comprising a lifting block 7 and two fastening rods 12, the first shaft slot is on both sides of said laying table 3 symmetrically opened, the first shaft slot is horizontally provided with a fixed shaft rod 4, a number of swing flaps 6 are each mounted on one side of the fixed shaft rod 4, the fixed shaft rod 4 is symmetrically divided into a number of swing flaps 6 with two sets of fastening slots 5 on each Side inserted, the mounting slot set 5 include two rod slots and the two rod slots are offset horizontally and inclined, the

Pivoting flap 6 is provided with a recess on one side, the lifting block 7 is movably inserted into the recess, the lifting block 7 is provided with an escape slot 8 through the opening on one side, the recess is provided with a lug plate 9 on one side, the lug plate 9 is provided through the inserted escape slot 8, the escape slot 8 is symmetrically provided with a number of spring bars 10, the

Clamp plate 9 is arranged on one side of the escape slot 8 and is movable with a

Side connected to a number of spring bars 10, the spring bars 10 are all connected on one side with a stabilizing spring 11, the stabilizing spring 11 is placed in contact with one side of the lug plate 9, two fastening bars 12 are symmetrically on one side of the

Lifting block 7 set, and one side of each of the two fixing rods 12 is inserted through the side of the swing flap 6 into one of the rod slots of the two fixing slot sets 5, the tilting or leveling of the swing flap 6 can be done by inserting the

Fastening rod 12 can be reached in two different rod slots of the fastening slot set 5 and thus facilitates the purpose of transporting shifts of different building materials by pulling on the lifting block 7 so that the lifting block 7

Spring rod 10 drives and clamps the stabilizing spring 11 between it and the

Clamp plate 9 after the pivoting flap 6 has been turned into an inclined position

Hand that pulls the lifting block 7 is released, and the lifting block 7 is caused by the rebound of the

Stabilizing spring 11 is driven into the rod slot on the side of the fixing slot set 5 by the fixing rod 12 and elastically supported by the stabilizing spring 11 to maintain the stability of the connection of the swing flap 6.

Embodiment 2

Based on Embodiment 1, the tilting and bending part of the

Pivoting flap 6 is blocked, the upper end of the laying table 3 is horizontal with a second 503959

Wave slot provided near the first wave slot, the second wave slot is horizontally provided with a horizontal shaft 14, the upper end of the horizontal shaft 14 is symmetrically connected to a number of baffles 15, a number of baffles 15 is 5 on one side with one Torsion spring connected to the horizontal shaft 14, and a number of baffles 15 are brought into contact on one side with a number of pivot flaps 6, by tilting and bending or horizontal arrangement of the pivot flap 6, the connection is protected from excessive contamination, which the could affect your use of the activity.

Embodiment 3

According to embodiment 2, the above enclosure is made according to the height of the future

Object executed, the height limiting assembly is movable above the base plate 1 by means of a lifting assembly, the height limiting assembly includes two cross members 19, which

Lifting assembly comprises a lifting bolt 18 and a lifting support 17, in the middle of the top of the base plate 1 is provided vertically with a support frame 16, the lifting support 17 is attached on both sides of the support frame 16 by horizontal struts on both sides, the lifting pin 18 is vertically in the middle by means of a bearing of the support frame 16, the middle of the lifting support 17 is provided vertically with a threaded tube, the lifting bolt 18 is threaded into the

Threaded tube of the lifting support 17 is screwed in, the protective assembly is provided at the lower end of the cross member 19, the protective assembly includes a changing box 20, the lifting support 17 is on the

Side of the horizontal symmetrical two overhanging rod, two cross beams 19 are connected to two overhanging rods at the upper end, two cross beams 19 are horizontally provided with a changing box 20 at the lower end, the changing box 20 is through the

Bearing of the horizontal winding shaft 24 inserted, the winding shaft 24 is placed in the winding box 20, which is wrapped with a protective cloth 21, and the protective cloth 21 is horizontally provided with a horizontal plate 22 at the lower end of the winding box 20, the accuracy of the

Lifting pin 18 does not need to be too high to maintain durability while using the

Lifting support 17 can control up and down movement, is enough to control the height of the two cross beams 19, with the overhanging plate, in order to place the laying table 3 above the object height limit housing.

Embodiment 4

According to embodiment 3, the length of the one led out of the changing box 20

Protective cloth 21 is limited when winding and unwinding, the limiting assembly is on one

Side of the changing box 20 is provided and the limiting assembly includes one

Limiting ring 27, the changing box 20 is horizontally provided with a bucket seat 25 on one side, the winding shaft 24 is inserted horizontally through the center of the bucket seat 25, the

Shell seat 25 is open with a shell slot on one side, the winding shaft 24 is in the

Shell slot with a take-up spool 26 inserted on one side, a recess is on one

Side of the shell slot mentioned is opened, a limiting ring 27 is movable in the

Finding rotation used, a number of guide rods 28 are provided symmetrically in the recess, a number of retention slots are symmetrically on one side of the

Limiting ring 27 is opened, and a number of guide rods 28 are through the

Retaining slots are introduced on one side of the limiting ring 27 and provided with retaining blocks, the guide rods 28 are arranged in the recess on the side of the return spring 29, the inside of the disc slot is provided with internal threads, the

Disc slot is inserted with a crimp ring 13 through the internal threads, and dep}503959

Crimp ring 13 is inserted into the disc slot on the side that is aligned with the side of the

Limiting ring 27 is in contact, the limiting ring 27 is symmetrically provided with a number of limiting blocks 30 near the side of the take-up reel 26, the side of the

Take-up reel 26 is opened symmetrically with a number of limiting slots 31, one

Number of limiting blocks 30 are each inserted into a number of limiting blocks 30, after placing the building material on the laying table 3, the cross member 19 is lowered to a suitable height, the pinch ring 13 is rotated to control the limiting ring 27 so that it Return spring 29 compresses so that it retracts into the annular groove, the limiting block 30 is simultaneously moved away from the limiting slot 31, the protective cloth 21 is released by rotating the take-up spool 26 to a suitable length, then the pinch ring 13 is released and a series of limiting blocks 30 are automatically inserted into a series of limiting slots 31 by the action of the return spring 29;

In addition, a series of limiting blocks 30 in limiting slot 31 one side can be inclined surface (not shown in the picture), when it is necessary to wrap the protective cloth 21 in the changing box 20, it is not necessary to rotate the crimping ring 13 the

Limit ring 27 to squeeze, with the rotation of the take-up spool 26, under the action of a series of limit blocks 30 tilting surface, the reciprocating activities of the limit ring 27 can achieve the winding of the take-up spool 26 self-locking and limit.

Embodiment 5

According to embodiment 4, the released protective cloth 21 is hung and fastened

Hooking assembly is provided on four sides of the upper end of the base plate 1 and the

Hooking assembly includes four hooking boxes 32, the lower end of the horizontal plate 22 is symmetrically provided on both sides with two hanging rings 23, four hanging rings 23 are arranged in the four hooking boxes 32 directly above the setting, the upper end of the four

Hook boxes 32 is opened with a connecting slot, the connecting slot is opened with an arcuate slot, the arcuate slot is opened on one side with a spring groove, the arcuate slot is movably inserted with the arcuate suspension rod 33, the spring groove is arcuate with the suspension spring 34 one side inserted, the arcuate suspension rod 33 is inserted into the spring slot on one side and placed in contact with the suspension spring 34 on one side, the arcuate suspension rod 33 is in the

Spring groove placed on one side with a tension block, the spring groove is with a rod-shaped

Slot opened by the hanging box 32 on one side, the pull block is placed through the inserted rod-shaped slot, when securing both sides of the laying table 3, the lower end of the hanging ring 23 is inserted into the connecting slot, the arc-shaped hanging rod 33 is inserted into the on one side Connecting slot inserted and hooked to the lower end of the suspension ring 23, and the upper end of the arcuate

Hanging rod 33 is inserted into the connecting slot with an inclined surface, the horizontal plate 22 is pulled down so that the lower end of the hanging ring 23 is inserted into the connecting slot of the hook box 32 and comes into contact with the inclined surface of the arcuate hanging rod 33, the arcuate suspension rod 33 presses the suspension spring 34, yielding to the suspension ring 23 when the suspension ring 23 crosses the arcuate suspension rod 33, the arcuate suspension rod 33 side under the

Effect of suspension spring 34 elasticity, hanging on the suspension ring 23, easy ukd/203959 convenient connection, when disassembly is required, the pull block is pulled to the

to establish contact between the suspension ring 23 and the arcuate suspension rod 33;

If it is necessary to relocate a pipe or pole, simply tilt and rotate the four pivot flaps 6 at the edges and use them in conjunction with the overhanging poles to safely position the building material in multiple directions when necessary. To transfer a large amount of relatively small volume of building materials, all swing flaps 6 are set at an angle, and then according to the height of the stacked

Building materials, the cross member 19 is lowered to a suitable height, then turn the

Take-up spool 26 to control the protective cloth 21 down, and hang through the hook box 32 on the horizontal plate 22, under the limiting ring 27 limiting roller when the

Roll down building materials, will not fall directly to the ground and hurt people, simple operation, easy to use, and a wide range of uses.

Although embodiments of the invention have been shown and described, it is understood that

Those skilled in the art that a variety of variations, modifications, substitutions and variants of these

Embodiments may be made without departing from the principles and spirit of the invention, the scope of which is limited by the appended claims and their equivalents.

Claims (10)

Claims LU503959 1. A safe displacement device for the transfer of building materials, characterized in that the safe displacement device for the transfer of building materials comprises: base plate (1), the base plate (1) being symmetrically at the lower end with a number of displacement wheels (2) and is provided horizontally with a laying table (3) at the upper end of the base plate (1); A edging assembly movably mounted on both sides of the laying table (3) by means of a positioning assembly, the edging assembly comprising a number of pivoting flaps (6), and the positioning assembly comprising a lifting block (7) and two fastening rods (12); Height limiting assembly, the height limiting assembly being movable above the base plate (1) by means of a lifting assembly, the height limiting assembly comprising two cross members (19), the lifting assembly comprising a lifting bolt (18) and a lifting support (17); Protection assembly provided at the lower end of the cross member (19), the protection assembly comprising a changing box (20); Limit assembly, wherein the limit assembly is provided on a side of the changing box (20), and the limit assembly comprises a limit ring (27); Hooking assembly, wherein the hooking assembly is provided on four sides of the upper end of the base plate (1), and the hooking assembly includes four hooking boxes (32). 2. A safe shifting device for the transfer of building materials according to claim 1, characterized in that the first shaft slot is symmetrically opened on both sides of said laying table (3), the first shaft slot is horizontally provided with a fixed shaft rod (4), a number of pivoting flaps (6) are each mounted on one side of the fixed shaft rod (4), the fixed shaft rod (4) is symmetrically inserted into a number of pivoting flaps (6) with two sets of fastening slots (5) on each side, the fastening slot set (5 ) include two rod slots and the two rod slots are offset horizontally and inclined. 3. A safe displacement device for the transfer of building materials according to claim 2, characterized in that the pivoting flap (6) is provided with a recess on one side, the lifting block (7) is movably inserted into the recess, the lifting block (7). one side is provided with an escape slot (8) through the opening, the recess is provided on one side with a lug plate (9), the lug plate (9) is provided through the inserted escape slot (8), the escape slot (8) is symmetrically provided with a number of spring bars (10), the lug plate (9) is arranged on one side of the escape slot (8) and is movably connected to one side of a number of spring bars (10), the spring bars (10) all on one side are connected to a stabilizing spring (11), the stabilizing spring (11) is placed in contact with one side of the lug plate (9), two fastening rods (12) are symmetrically placed on one side of the lifting block (7), and one side of each the two fastening rods (12) are inserted through the side of the swing flap (6) into one of the rod slots of the two fastening slot sets (5). 4. A safe displacement device for the transfer of building materials according to claim 3, characterized in that the upper end of the laying table (3) is provided horizontally with a second 903959 wave slot near the first wave slot, the second wave slot is horizontally provided with a horizontal wave (14), the upper end of the horizontal wave (14) symmetrically connected with a number of baffles (15), a number of baffles (15) on one side with a torsion spring connected to the horizontal shaft (14), and a number of baffles (15) on one side with a number of Pivoting flaps (6) are brought into contact. 5. A safe displacement device for the transfer of building materials according to claim 4, characterized in that in the middle of the top of the base plate (1) is vertically provided with a support frame (16), the lifting support (17) on both sides of the support frame (16). Horizontal struts are attached on both sides, the lifting bolt (18) is positioned vertically in the middle of the support frame (16) by means of a bearing, the middle of the lifting support (17) is provided vertically with a threaded tube, the lifting bolt (18) is threaded into the threaded tube the lifting support (17) is screwed in. 6. A safe shifting device for the transfer of building materials according to claim 5, characterized in that the lifting support (17) is provided on the side of the horizontal symmetrical two overhanging rods, two cross beams (19) are connected at the upper end to two overhanging rods, two cross members (19) are provided horizontally at the lower end with a winding box (20), the winding box (20) is inserted through the bearing of the horizontal winding shaft (24), the winding shaft (24) is placed in the winding box (20), which with is wrapped in a protective cloth (21), and the protective cloth (21) is provided horizontally with a horizontal plate (22) at the lower end of the changing box (20). 7. A safe displacement device for the transfer of building materials according to claim 6, characterized in that the winding box (20) is horizontally provided with a bucket seat (25) on one side, the winding shaft (24) horizontally through the center of the bucket seat (25) is inserted, the shell seat (25) is opened with a shell slot on one side, the winding shaft (24) is inserted into the shell slot with a take-up spool (26) on one side. 8. A safe displacement device for the transfer of building materials according to claim 7, characterized in that a recess on one side of said shell slot is opened, a limiting ring (27) is movably inserted into the recess, a number of guide rods (28) symmetrically in the recess is provided, a number of retaining slots are symmetrically opened on one side of the limiting ring (27), and a number of guide rods (28) are inserted through the retaining slots on one side of the limiting ring (27) and are provided with retaining blocks, the guide rods (28) are arranged in the recess on the side of the return spring (29), the inside of the disc slot is provided with internal threads, the disc slot is inserted with a crimping ring (13) through the internal threads, and the crimping ring (13) is inserted into the disc slot the side that is in contact with the side of the limiting ring (27). 9. A safe displacement device for the transfer of building materials according to claim 8, characterized in that the limiting ring (27) is symmetrically provided with a number of limiting blocks (30) near the side of the take-up spool (26), the side of the take-up spool (26). is opened symmetrically with a number of boundary slots (31), a number of boundary blocks (30) each into a number of boundary blocks (30) is used. LU503959 10. A safe displacement device for the transfer of building materials according to claim 9, characterized in that the lower end of the horizontal plate (22) is symmetrically provided on both sides with two suspension rings (23), four suspension rings (23) in the four hooking boxes (32) directly above the adjustment, the upper end of the four hook boxes (32) is opened with a connecting slot, the connecting slot is opened with an arcuate slot, the arcuate slot is opened on one side with a spring groove, the arcuate slot is opened with the arcuate hanging rod (33) is movably inserted, the spring groove is inserted in an arc shape with the suspension spring (34) on one side, the arc-shaped suspension rod (33) is inserted into the spring slot on one side and placed in contact with the suspension spring (34) on one side, the arc-shaped hanging rod (33) is placed in the spring groove on one side with a pull block, the spring groove with a rod-shaped slot is opened by the hanging box (32) on one side, the pull block is placed through the inserted rod-shaped slot, in securing both On the sides of the laying table (3), the lower end of the hanging ring (23) is inserted into the connecting slot, the arcuate hanging rod (33) is inserted into the connecting slot on one side and is hooked to the lower end of the hanging ring (23), and the upper end of the arcuate suspension rod (33) is inserted into the connecting slot with an inclined surface.