A safety rack for protecting sheets of different sizes

Abstract

The present invention discloses a safety rack for protecting sheets of different specifications, and relates to the technical field of racks, including a clamping rod, a rotating rod and a first crossbeam with a plurality of slots between a first locking mechanism and a second locking mechanism, the first locking mechanism or the second locking mechanism including a large gear, a first friction plate, an extension plate, and a small gear meshing with the large gear arranged on a bracket; the two ends of the rotating rod respectively have a left-handed thread and a right-handed thread, the left-handed thread matches a first spline sleeve with a left-handed thread, and the right-handed thread matches a second spline sleeve with a right-handed thread, and the rotating rod can be rotated to make the first spline sleeve and the second spline sleeve move laterally on the extension plate, and when the small gear moves laterally to the first friction plate, the small gear will abut against the first friction plate and cannot rotate. The present invention is not only simple in structure, but also effectively protects sheets of different sizes, especially effectively protects sheets of irregular shapes.

Description

Technical Field

[0001] The present invention relates to the technical field of material racks, in particular to a safety material rack for protecting sheets of different specifications (different sizes and irregular shapes). Background Art

[0002] Similar racks in the prior art have been disclosed by the following patent documents.

[0003] Chinese invention patent specification CN 105800031 A (published on July 27, 2016) discloses a protective structure for a glass frame, which can be adjusted to suit glasses of different sizes and has good use value; it includes a bracket in a frame structure, the right front column and the right rear column of the bracket are fixed with support rods at the opposite inner ends, the opposite support rods are connected with a blocking rod 1, the blocking rod 1 is equipped with a rack, a fixing rod is connected between the left front column and the left rear column of the bracket corresponding to the support rod, and pressure rods inclined inward are fixed on the opposite inner ends of the right front column and the right rear column above the support rod and on the left front column and the left rear column symmetrical thereto, a protective rod is connected between the pressure rods, the protective rod is equipped with a rubber strip, an adjustment device is provided on the fixing rod, and a latch is installed on the left front column and the right front column close to the pressure rod.

[0004] However, the protective structure of the glass frame disclosed above cannot effectively protect sheets of different sizes, especially cannot effectively protect sheets of irregular shapes. Summary of the invention

[0005] The technical problem to be solved by the present invention is to provide a safety rack for protecting sheets of different specifications, so as to overcome the defect that the protective structure in the prior art cannot effectively protect sheets of different sizes, especially cannot effectively protect sheets of irregular shapes.

[0006] In order to solve the above technical problems, the safety rack for protecting sheets of different specifications of the present invention includes a bracket with a frame structure; the left, bottom and right parts of the bracket are respectively provided with a clamping rod, a first adjusting rod and a second adjusting rod, the clamping rod includes a symmetrically arranged first locking mechanism and a second locking mechanism, a rotating rod and a first crossbeam with a plurality of slots are arranged between the first locking mechanism and the second locking mechanism, the first locking mechanism or the second locking mechanism includes a large gear arranged on the bracket, a first friction plate, an extension plate, and a small gear meshing with the large gear; the two ends of the rotating rod have left-handed threads respectively. , right-handed thread, the left-handed thread matches the first spline sleeve with left-handed thread, and the right-handed thread matches the second spline sleeve with right-handed thread. Rotating the rotating rod can make the first spline sleeve and the second spline sleeve move laterally on the extension plate. The first spline sleeve and the second spline sleeve are both provided with the pinion. When the pinion moves laterally to the first friction plate, the pinion will abut against the first friction plate and cannot rotate. The first adjusting rod or the second adjusting rod includes a first rod and a second rod, and a second crossbeam with a plurality of grooves is provided between the first rod and the second rod.

[0007] Wherein, the first rod or the second rod comprises a large tube and a small tube telescopically mounted on the large tube, and the telescopic distance between the large tube and the small tube is adjusted by a positioning pin.

[0008] Wherein, first cylindrical rods are respectively provided at both ends of the first crossbeam, and the first cylindrical rods are arranged on the first cylindrical hole of the extension plate. The extension plate is also provided with a first threaded hole, and the first screw rod is screwed on the first threaded hole and abuts against the first cylindrical rod.

[0009] Wherein, the two ends of the second crossbeam are respectively provided with a second cylindrical rod, the second cylindrical rod is arranged on the second cylindrical hole of the small tube, the small tube is also provided with a second threaded hole, and the second screw rod is screwed on the second threaded hole and abuts against the second cylindrical rod.

[0010] Wherein, the slots on the first crossbeam or the second crossbeam are tooth-shaped slots.

[0011] Wherein, the tooth-shaped groove is covered with a layer of elastic rubber body.

[0012] Wherein, two first adjustment rods are provided at the bottom of the bracket.

[0013] Wherein, a pedal frame is provided at the bottom of the bracket, and the pedal frame is arranged between the two first adjusting rods.

[0014] Among them, a plurality of first positioning holes are vertically arranged on the large tube, a plurality of second positioning holes are vertically arranged on the small tube, and the positioning pin is arranged between the first positioning hole and the second positioning hole.

[0015] Wherein, a second friction plate is also provided on the extension plate.

[0016] Compared with the prior art, the beneficial effects of the present invention are not only simple in structure, but also effective in protecting sheets of different sizes, especially effective in protecting sheets of irregular shapes. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic diagram of the structure of the safety rack for protecting sheets of different specifications according to the present invention;

[0018] Figure 2 yes Figure 1 A schematic diagram of a first three-dimensional structure of the middle pressing rod;

[0019] Figure 3 is a second three-dimensional structural schematic diagram of the pressing rod;

[0020] Figure 4 yes Figure 1 A schematic diagram of a first exploded structure of the middle pressing rod;

[0021] Figure 5 yes Figure 1 A second exploded structural diagram of the middle pressing rod;

[0022] Figure 6 yes Figure 1 A schematic diagram of the three-dimensional structure of the first adjusting rod or the second adjusting rod;

[0023] Figure 7 yes Figure 1 A schematic diagram of the exploded structure of the first adjusting rod or the second adjusting rod;

[0024] Figure 8 It is a schematic diagram of the structure of the use state of the safety rack for protecting sheets of different specifications of the present invention. DETAILED DESCRIPTION

[0025] The specific implementation of the present invention is further described in detail below in conjunction with the accompanying drawings and examples. The following examples are used to illustrate the present invention, but are not intended to limit the scope of the present invention.

[0026] Embodiment 1

[0027] like Figure 1 , 2As shown in , 4, 5, 6, 7, and 8, the safety rack for protecting sheets of different specifications (the so-called different specifications refer to sheets of different sizes and irregular shapes) (the sheet in this embodiment refers to the glass sheet 1 used in the car, and of course it can also refer to other plastic sheets) in this embodiment includes a bracket 2 with a frame structure; the left, bottom, and right parts of the bracket are respectively provided with a clamping rod 3, a first adjustment rod, and a second adjustment rod 4. In this embodiment, considering the special protection of the glass sheet, in order to protect it more reliably, two first adjustment rods 5 and 6 are provided at the bottom of the bracket. The clamping rod includes a symmetrically arranged first locking mechanism 7 and a second locking mechanism 8, and a rotating rod 9 and a first crossbeam 11 with a plurality of slots are provided between the first locking mechanism and the second locking mechanism. A handle 12 is provided on the rotating rod to facilitate the user to rotate the rotating rod for use. First cylindrical rods 14 are respectively provided at both ends of the first crossbeam, and the first cylindrical rod is provided on the first cylindrical hole 15 of the extension plate. The extension plate is also provided with a first threaded hole 16, and a first screw 17 is screwed on the first threaded hole and abuts on the first cylindrical rod. That is, the first crossbeam of this embodiment can be rotatably adjusted. The user loosens the first screw with an auxiliary tool, and then rotates the first crossbeam to a suitable position matching the glass sheet, and then tightens the first screw until the first screw abuts on the first cylinder. At this time, the first crossbeam is fixed and cannot be rotatably adjusted. The first locking mechanism or the second locking mechanism includes a large gear 20, a first friction plate 21, an extension plate 22, and a small gear 23 meshing with the large gear; the two ends of the rotating rod are respectively provided with a left-handed thread 24 and a right-handed thread 25, the left-handed thread (external thread) 24 matches with a first spline sleeve 26 with a left-handed thread (internal thread), and the right-handed thread (external thread) 25 matches with a second spline sleeve 27 with a right-handed thread (internal thread), and rotating the rotating rod can make the first spline sleeve and the second spline sleeve move laterally on the extension plate, and the first spline sleeve and the second spline sleeve are both provided with the small gear 23, and when the small gear moves laterally to the first friction plate, the small gear will abut against the first friction plate and cannot rotate; the first adjusting rod or the second adjusting rod includes a first rod 18 and a second rod 19, and a second crossbeam 10 with a plurality of grooves is provided between the first rod and the second rod. The first rod or the second rod includes a large tube 27 and a small tube 200 that is telescopically mounted on the large tube. The telescopic distance between the large tube and the small tube is adjusted by a positioning pin 29. A plurality of first positioning holes 30 are vertically arranged on the large tube, and a plurality of second positioning holes 31 are vertically arranged on the small tube. The positioning pin is arranged between the first positioning holes and the second positioning holes. The telescopic distance of the small tube on the large tube can be adjusted through different positioning holes.The second crossbeam has a second cylindrical rod 32 at both ends, and the second cylindrical rod is arranged on the second cylindrical hole 33 of the small tube. The small tube is also provided with a second threaded hole 34, and the second screw 35 is screwed on the second threaded hole and abuts on the second cylindrical rod, that is, the second crossbeam of this embodiment can be rotated and adjusted. The user loosens the second screw through an auxiliary tool, and then rotates the second crossbeam to a suitable position matching the glass sheet, and then tightens the second screw until the second screw abuts on the second cylinder. At this time, the second crossbeam is fixed and cannot be rotated and adjusted. The intermediate groove on the first crossbeam or the second crossbeam is a toothed groove, which is convenient for placing multiple glass sheets. The toothed groove is coated with a layer of elastic rubber body to further protect the glass sheet and prevent the glass sheet from being damaged.

[0028] A pedal frame 37 is provided at the bottom of the bracket. The pedal frame is provided between the two first adjusting rods. The user can conveniently step on the pedal frame to load and unload the glass sheet.

[0029] When using this embodiment, firstly, according to the shape of the glass sheet, the first adjustment rod 5, 6 and the second adjustment rod 4 are rotated and adjusted to a suitable angle and then fixed to be non-rotatable, and then the height of the first adjustment rod 5, 6 and the second adjustment rod 4 is adjusted by the telescopic distance of the small tube on the large tube. Finally, by pressing down and toggling the rotating rod with the handle, the small gear will move on the large gear, so that the pressing rod 3 is pressed downward as a whole until the groove on the first crossbeam 11 is matched with the glass sheet. Then, the rotating rod is tightened by the handle, and the first spline sleeve and the second spline sleeve are moved laterally inward on the extension plate while the rotating rod is tightened, so that the small gear is also moved laterally inward to the first friction plate, and finally the small gear abuts against the first friction plate and cannot continue to move on the large gear. At this time, the pressing rod presses the glass sheet and cannot rotate. On the contrary, by loosening the rotating rod by the handle, the first spline sleeve and the second spline sleeve will move laterally outward on the extension plate, and then the small gear will also move laterally outward and break away from the contact with the first friction plate, so that the small gear continues to move on the large gear, and the clamping rod can rotate at this time.

[0030] Embodiment 2

[0031] like Figure 3 As shown, the second embodiment is basically the same as the first embodiment, except that the two ends of the rotating rod in the present embodiment respectively have a right-handed thread 100 and a left-handed thread 101, the right-handed thread (external thread) 100 matches with a first spline sleeve 102 with a right-handed thread (internal thread), and the left-handed thread (external thread) 101 matches with a second spline sleeve 103 with a left-handed thread (internal thread), and rotating the rotating rod can make the first spline sleeve and the second spline sleeve move laterally on the extension plate.

[0032] Embodiment 3

[0033] like Figure 1 , 2 As shown in , 4, the third embodiment is basically the same as the first embodiment or the second embodiment, except that, in the present embodiment, the extension plate is further provided with a second friction plate 40, which is in a semicircular arc shape. Its function is to further increase the contact area between the side surface of the pinion and the first friction plate and the second friction plate when the pinion moves laterally inward. At this time, it is further ensured that the clamping rod cannot rotate.

[0034] When using this embodiment, firstly, according to the shape of the glass sheet, the first adjustment rod 5, 6 and the second adjustment rod 4 are rotated and adjusted to a suitable angle and then fixed to be non-rotatable, and then the height of the first adjustment rod 5, 6 and the second adjustment rod 4 is adjusted by the telescopic distance of the small tube on the large tube. Finally, by pressing down and toggling the rotating rod with the handle, the small gear will move on the large gear, so that the pressing rod 3 is pressed downward as a whole until the groove on the first crossbeam 11 is matched with the glass sheet. Then, the rotating rod is tightened by the handle, and the first spline sleeve and the second spline sleeve are moved laterally inward on the extension plate while the rotating rod is tightened, so that the small gear is also moved laterally inward to the first friction plate and the second friction plate, and finally the small gear abuts against the first friction plate and the second friction plate and cannot continue to move on the large gear. At this time, the pressing rod presses the glass sheet and cannot rotate. On the contrary, by loosening the rotating rod by the handle, the first spline sleeve and the second spline sleeve will move laterally outward on the extension plate, and then the small gear will also move laterally outward and break away from the contact with the first friction plate and the second friction plate, so that the small gear continues to move on the large gear, and the clamping rod can rotate at this time.

[0035] The invention not only has a simple structure, but also effectively protects sheets of different sizes, especially effectively protects sheets of irregular shapes.

[0036] The above is only a preferred embodiment of the present invention. It should be pointed out that for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the technical principles of the present invention. These improvements and modifications should also be regarded as the scope of protection of the present invention.

Claims

1. A safety rack for protecting sheets of different specifications, comprising a bracket in a frame structure; Features: The left part, the bottom part and the right part of the bracket are respectively provided with a clamping rod, a first adjusting rod and a second adjusting rod, and the clamping rod includes a first locking mechanism and a second locking mechanism which are symmetrically arranged, and a rotating rod and a first crossbeam with a plurality of slots are arranged between the first locking mechanism and the second locking mechanism, and the first locking mechanism or the second locking mechanism includes a large gear, a first friction plate, an extension plate and a small gear meshing with the large gear arranged on the bracket; two ends of the rotating rod are respectively provided with a left-handed thread and a right-handed thread, and the left-handed thread matches the first spline sleeve with the left-handed thread, and the right-handed thread matches the second spline sleeve with the right-handed thread, and rotating the rotating rod can make the first spline sleeve and the second spline sleeve move laterally on the extension plate, and the first spline sleeve and the second spline sleeve are both provided with the small gear, and when the small gear moves laterally to the first friction plate, the small gear will abut against the first friction plate and cannot rotate; The first adjusting rod or the second adjusting rod comprises a first rod and a second rod, and a second crossbeam with a plurality of slots is arranged between the first rod and the second rod.

2. The safety rack for protecting sheets of different specifications according to claim 1, characterized in that: The first rod or the second rod comprises a large tube and a small tube telescopically mounted on the large tube, and the telescopic distance between the large tube and the small tube is adjusted by a positioning pin.

3. The safety rack for protecting sheets of different specifications according to claim 1, characterized in that: The first crossbeam has first cylindrical rods at both ends respectively. The first cylindrical rod is arranged on the first cylindrical hole of the extension plate. The extension plate is also provided with a first threaded hole. The first screw is screwed on the first threaded hole and abuts against the first cylindrical rod.

4. The safety rack for protecting sheets of different specifications according to claim 2, characterized in that: The two ends of the second cross beam are respectively provided with a second cylindrical rod, the second cylindrical rod is arranged on the second cylindrical hole of the small tube, the small tube is also provided with a second threaded hole, and the second screw rod is screwed on the second threaded hole and abuts against the second cylindrical rod.

5. The safety rack for protecting sheets of different specifications according to claim 1, characterized in that: The slots on the first cross beam or the second cross beam are tooth-shaped slots.

6. The safety rack for protecting sheets of different specifications according to claim 5, characterized in that: The toothed groove is covered with a layer of elastic rubber body.

7. The safety rack for protecting sheets of different specifications according to claim 1, characterized in that: Two first adjusting rods are arranged at the bottom of the bracket.

8. The safety rack for protecting sheets of different specifications according to claim 7, characterized in that: A pedal frame is provided at the bottom of the bracket, and the pedal frame is arranged between the two first adjusting rods.

9. The safety rack for protecting sheets of different specifications according to claim 2, characterized in that: A plurality of first positioning holes are vertically arranged on the large tube, a plurality of second positioning holes are vertically arranged on the small tube, and the positioning pin is arranged between the first positioning hole and the second positioning hole.

10. The safety rack for protecting sheets of different specifications according to claim 1, characterized in that: The extension plate is also provided with a second friction plate.

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