CN109846217B

CN109846217B - Adjustable cantilever type goods shelves that field was used are built in room

Info

Publication number: CN109846217B
Application number: CN201910180057.7A
Authority: CN
Inventors: 卢洁
Original assignee: Lin Rufeng
Current assignee: Binzhou Kechuang Incubator Co.,Ltd.
Priority date: 2019-03-11
Filing date: 2019-03-11
Publication date: 2021-03-19
Anticipated expiration: 2039-03-11
Also published as: CN112841900A; CN112826233A; CN109846217A

Abstract

The invention belongs to the field of goods shelves, and particularly relates to an adjustable cantilever type goods shelf used in the field of house construction, which comprises a plurality of goods shelf units, wherein the goods shelf units are arranged at equal intervals in sequence to form a row of goods shelves; the cantilever on the goods shelf can be randomly adjusted according to the requirement to adapt to the placement of different long goods, and the goods shelf has multiple purposes, so that the number of the goods shelf is reduced to a certain extent, and the cost of goods storage is further reduced; in addition, can increase the combination of installing a plurality of pairs of C type guide blocks and cantilever as required at any time on two support columns, the long-type goods of different weight specifications can be placed to the cantilever on a pair of C type guide blocks of co-altitude, the goods is heavier its position of placing on goods shelves lower in order to strengthen the stability of goods shelves to save the space of placing of goods to a certain extent, further reduced the goods and placed required goods shelves quantity, furthest reduced the storage cost of goods.

Description

Adjustable cantilever type goods shelves that field was used are built in room

Technical Field

The invention belongs to the field of goods shelves, and particularly relates to an adjustable cantilever type goods shelf used in the field of house construction.

Background

At present, cantilevers in a traditional cantilever type goods shelf are generally fixedly arranged on supporting columns, and the cantilevers on the two supporting columns have the same height and are fixed in position; the logarithm of the cantilever on the traditional cantilever type goods shelf is fixed, goods with different weight specifications cannot be placed on one goods shelf at any time according to needs, and the height of the goods shelf cannot be adjusted, so that the use range of the goods shelf is limited; the height of two mated cantilevers is the same on traditional cantilever type goods shelves for can only place the longer goods that the shape is more regular on two mated cantilevers, the longer goods that both ends width or diameter difference are bigger just can't place on it, thereby its application range has further been restricted, the goods that do not suit this goods shelves just need other goods shelves to place, improve goods shelves cost on the one hand, on the other hand has occupied more spaces, is unfavorable for improving the storing ability in storehouse unit space.

The invention designs an adjustable cantilever type goods shelf used in the field of building construction, and solves the problems.

Disclosure of Invention

In order to overcome the defects in the prior art, the invention discloses an adjustable cantilever type goods shelf used in the field of house construction, which is realized by adopting the following technical scheme.

In the description of the present invention, it should be noted that the terms "inside", "below", "upper" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings or orientations or positional relationships that the products of the present invention usually place when using, and are only used for convenience of description and simplification of description, but do not indicate or imply that the devices or elements indicated must have a specific orientation, be constructed in a specific orientation or be operated, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and the like are used merely to distinguish one description from another, and are not to be construed as indicating or implying relative importance.

The utility model provides an adjustable cantilever type goods shelves that field was used is built in room which characterized in that: the shelf comprises a plurality of shelf units, wherein the shelf units are arranged at equal intervals in sequence to form a row of shelves.

The goods shelf unit comprises a first supporting mechanism, a second supporting mechanism, a Z-shaped fixing frame and an adjusting mechanism, wherein the first supporting mechanism is fixedly connected with the second supporting mechanism through the Z-shaped fixing frame, and two ends of the adjusting mechanism are respectively matched with the first supporting mechanism and the second supporting mechanism; the structures and the installation positions of the first supporting mechanism and the second supporting mechanism are symmetrical relative to the central plane of the shelf unit.

The first supporting mechanism comprises a supporting column, a limiting module and a C-shaped guide block, wherein the supporting column, the limiting module and the C-shaped guide block are fixedly arranged on a fixed base, and the two sides of the supporting column are symmetrically provided with vertical guide grooves; the two ends of the C-shaped guide block with the cantilever arranged on the front side surface are respectively and slidably mounted in the two vertical guide grooves of the support column, and the abdicating groove which is positioned on the inner wall of the C-shaped guide block and runs through the lower end surface of the C-shaped guide block is matched with the first limiting module.

The adjusting mechanism comprises a first adjusting mechanism and a second adjusting mechanism, and the first adjusting mechanism and the second adjusting mechanism are connected in a hinged mode; the first adjusting mechanism and the second adjusting mechanism on two sides of the hinge point are symmetrically distributed in structure; for the first adjusting mechanism, the first adjusting mechanism comprises a telescopic rod, a connecting rectangular block, an L-shaped limiting rod and a return spring, wherein one end of the connecting rectangular block, which is provided with a stepped cylinder shape, is rotatably arranged in a stepped circular groove on the outer side surface of the corresponding C-shaped guide block; a first sliding groove arranged on the upper surface of the connecting rectangular block is communicated with a second sliding groove arranged on the stepped cylindrical end surface, and an L-shaped limiting rod is arranged in the first sliding groove and the second sliding groove in a sliding manner; a return spring is arranged on the L-shaped limiting rod to enable the L-shaped limiting rod to move and return; the vertical end of the L-shaped limiting rod penetrates through the first sliding groove, and the transverse end of the L-shaped limiting rod penetrates through the second sliding groove to be matched with two limiting grooves which are arranged on the side groove surface of the stepped circular groove and have a circumferential distance of 90 degrees; one end of the telescopic rod is hinged with one end of the connecting rectangular block far away from the stepped cylinder; the telescopic rods in the first adjusting mechanism and the second adjusting mechanism are hinged; the hinge pin hinged between the two telescopic rods, the hinge pin hinged between the telescopic rod and the connecting rectangular block in the first adjusting mechanism and the central axis of the hinge pin hinged between the telescopic rod and the connecting rectangular block in the second adjusting mechanism are parallel.

The limiting module comprises a fixing block, a swing strip, a first shaft, a first gear, a V-shaped limiting plate, a second shaft, a second gear, a shaft end damper, a volute spiral spring, a limiting column, a transmission strip and a rack, wherein the fixing block with a first swing groove and a second swing groove which are distributed up and down is installed in the corresponding installation grooves; a first wheel groove in the fixed block is transversely communicated with the first swing groove through a first shaft hole, and a first shaft is arranged in the first shaft hole through a bearing; one end of the first shaft is provided with a first gear and is positioned in the first gear groove, and the other end of the first shaft is provided with a swing strip and is positioned in the first swing groove; a first movable groove is formed in the front side wall of the first wheel groove; a second wheel groove in the fixed block is transversely communicated with a second swing groove through a second shaft hole, and a second shaft is arranged in the second shaft hole through a bearing; one end of the second shaft is arranged in a second assembling groove on the side wall of the second swinging groove through a shaft end damper, and the other end of the second shaft is arranged in a first assembling groove communicated with the second wheel groove through a bearing; the V-shaped limiting plate is fixedly arranged on the second shaft and is positioned in the second swing groove, and the second gear is fixedly arranged on the second shaft and is positioned in the second gear groove; the volute spiral spring is nested on the second shaft to reset the swing of the V-shaped limit plate; a second movable groove is formed in the rear side wall of the second wheel groove; the transfer strip is slidably arranged in a limiting sliding groove which is communicated with the second movable groove and the first movable groove in the vertical direction; the two racks which are respectively arranged on the side surfaces of the upper end and the lower end of the transmission strip are positioned on two sides of the transmission strip, and the two racks are respectively meshed with the first gear and the second gear; the limiting column is arranged in the second swing groove and matched with the V-shaped limiting plate; the V-shaped limiting plate and the swing strip are matched with the abdicating groove on the C-shaped guide block.

As a further improvement of the present technology, the first gear is in key fit with the first shaft, so that the first gear and the first shaft rotate synchronously; two ends of the first shaft are respectively matched with the inner wall of the first swing groove and the inner wall of the first wheel groove through bearings; the second gear is in key fit with the second shaft, so that the second gear and the second shaft rotate synchronously.

As a further improvement of the present technique, the spiral spring is located in the first mounting groove; one end of the scroll spring is connected with the inner wall of the first assembly groove, and the other end of the scroll spring is connected with the outer side of the second shaft.

As a further improvement of the technology, the front end of the cantilever is in the shape of an upward bent hook, so that the cantilever can be used for placing more goods.

As a further improvement of the technology, the abdicating groove is positioned on the side wall of the C-shaped guide block, which is in contact with the front side surface of the support column, and is communicated with the lower end surface of the C-shaped guide block; the distance between the upper end surface of the C-shaped guide block and the top surface of the abdicating groove is smaller than the distance between the lower edge of the notch of the first swing groove and the upper edge of the notch of the second swing groove, so that when the C-shaped guide block gradually breaks away from the swing strip or the V-shaped limiting plate moves downwards or upwards along the vertical guide groove, the interference of the upward swing of one end of the V-shaped limiting plate, which is exposed out of the front side surface of the support column, around the central axis of the second shaft to the movement of the C-shaped guide block; if V type limiting plate and pendulum strip form the interference to C type guide block simultaneously, make whole mechanism be in the card dead state then, and then influence the altitude mixture control of cantilever on the goods shelves.

As a further improvement of the technology, the first swing groove and the second swing groove are communicated with the front side surface of the corresponding fixed block; the upper end and the lower end of the first movable groove respectively vertically penetrate through the top surface and the bottom surface of the first wheel groove; two ends of the second movable groove vertically penetrate through the top surface and the bottom surface of the second wheel groove respectively; the first movable groove and the second movable groove provide certain movable space for the transmission strip and the two racks arranged on the transmission strip to move up and down along the limiting sliding groove.

As a further improvement of the technology, the inner wall of the second chute is provided with a reset ring groove along the circumferential direction; the cantilever mechanism also comprises a round tension spring plate, the center of which is provided with a square hole, and the tension spring plate is fixedly arranged on the horizontal section of the L-shaped limiting rod in a nested manner and is positioned in the reset ring groove; the return spring is an extension spring, one end of the return spring is connected with the tension spring plate, and the other end of the return spring is connected with the inner wall of the return ring groove; the reset spring resets the motion of the L-shaped limiting rod.

As a further improvement of the technology, the width difference between the first sliding groove and the vertical section of the L-shaped limiting rod is greater than the depth of the limiting groove on the stepped circular groove; only when the reset spring is positioned in the reset ring groove, the width difference between the first sliding groove and the vertical section of the L-shaped limiting rod is greater than the depth of the limiting groove on the stepped circular groove, and the width difference between the first sliding groove and the vertical section of the L-shaped limiting rod determines the sliding amplitude of the L-shaped limiting rod along the second sliding groove; only when the width difference between the first sliding groove and the vertical section of the L-shaped limiting rod is larger than the depth of the limiting groove on the stepped circular groove, the L-shaped limiting rod can completely slide out of the limiting groove along the second sliding groove when needed and the rotation limitation of the connected rectangular block is removed.

As a further improvement of the present technology, the diameter of the first gear is larger than the diameter of the second gear; the purpose of the design is that the swinging speed of the V-shaped limiting plate around the central axis of the second shaft is higher than the swinging speed of the swing strip around the central axis of the first shaft, so that when the C-shaped guide block moves downwards along the vertical guide groove and is separated from the swing strip, the V-shaped limiting plate completely enters the second swing groove for a certain depth and cannot obstruct the continuous downward movement of the C-shaped guide block.

As a further improvement of the technology, the upper end of the V-shaped limit plate on the limit module where the C-shaped guide block stays is positioned in the abdicating groove and is in a horizontal state; at the moment, one end of the swing strip, which is originally exposed out of the first swing groove, is completely swung upwards into the first swing groove around the central axis of the first shaft, and the volute spiral spring in the limiting module is in a compressed state; the purpose of this design is: the C-shaped guide block moves upwards along the vertical guide groove and starts to act on the swing strip after being separated from the V-shaped limiting plate, so that the swing strip swings upwards around the central axis of the first shaft; when the C-shaped guide block moves upwards to the top end of the first swing groove, the swing strip is completely swung into the first swing groove under the action of the C-shaped guide block, the swing strip does not form a barrier to the upward movement of the C-shaped guide block continuously along the vertical guide groove, and the cantilever is convenient to adjust to a higher height position.

The limiting column has the function of limiting the V-shaped limiting plate to swing around the central axis of the second shaft without limit, and the upper end of the V-shaped limiting plate stops swinging when swinging downwards around the central axis of the second shaft to a horizontal position, so that the V-shaped limiting plate limits the C-shaped guide block.

The shaft end damper utilizes high-viscosity damping oil to generate certain damping force for the rotation of the second shaft, so that the reset swinging of the V-shaped limiting plate and the swinging strip is slow, and the downward adjustment of the C-shaped guide block is facilitated to quickly cross over the V-shaped limiting plate with a certain depth in the second swinging groove; such as the rotary damper in prior art car safety handles.

The abdicating groove has the advantages that the distance between the upper end surface of the C-shaped guide block and the top surface of the abdicating groove is reduced as much as possible while the abdicating groove provides a moving space for the swing bar and the V-shaped limiting plate, and the structural arrangement among the C-shaped guide block, the swing bar and the V-shaped limiting plate is facilitated; because the swinging direction of the swinging strip around the central axis of the first shaft is opposite to the swinging direction of the V-shaped limiting plate around the central axis of the second shaft, if the distance between the upper end surface of the C-shaped guide block and the top surface of the abdicating groove is greater than the distance between the lower edge of the notch of the first swinging groove and the upper edge of the notch of the second swinging groove, the swinging strip and the V-shaped limiting plate can meet the C-shaped guide block at the same time in the process of the vertical movement of the C-shaped guide block along the vertical guide groove, so that the whole mechanism is blocked, and the height of a cantilever on the C-shaped guide block cannot be; only when the distance between the upper end surface of the C-shaped guide block and the top surface of the abdicating groove is smaller than the distance between the lower edge of the notch of the first swing groove and the upper edge of the notch of the second swing groove, the interference of the swing strip and the V-shaped limiting plate which swing in opposite directions to the movement of the C-shaped guide block can be fundamentally avoided, and the height adjustment of the cantilever is smoothly completed.

Compared with the traditional cantilever type goods shelf, the limiting module can limit the positions of the C-shaped guide block and the cantilever, so that the positions of the C-shaped guide block and the cantilever which are moved to the target position are fixed, and a placing space with proper height is provided for long goods; the two C-shaped guide blocks connected through the adjusting mechanism can not only synchronously move up and down along the vertical guide grooves on the corresponding support columns at the same height and position, but also synchronously move up and down at different heights and position; the placement of long goods with different specifications is met to the maximum extent; the limiting modules in the first supporting mechanism and the second supporting mechanism interact with the C-shaped guide block, so that the cantilever on the goods shelf can be randomly adjusted according to needs to adapt to placement of different long goods, and the goods shelf is multipurpose, so that the number of the goods shelf is reduced to a certain extent, and the cost of goods storage is reduced; in addition, a plurality of pairs of C-shaped guide blocks and cantilevers can be additionally arranged on the two support columns at any time according to needs, long goods with different weight specifications can be placed on the cantilevers on the pair of C-shaped guide blocks with different heights, and the heavier the goods are, the lower the goods are placed on the goods shelf, so that the stability of the goods shelf is enhanced, the placing space of the goods is saved to a certain extent, the number of the goods shelf required by placing the goods is further reduced, and the storage cost of the goods is reduced to a greater extent; the invention has simple structure, easy operation and better use effect.

Drawings

Figure 1 is a schematic view of a shelving unit.

Fig. 2 is a schematic diagram of the Z-shaped fixing frame, the first supporting mechanism, the second supporting mechanism, the adjusting mechanism and the limiting module.

FIG. 3 is a cross-sectional view of the positioning module, the supporting post, the C-shaped guide block and the cantilever.

Fig. 4 is a schematic perspective view of a support post.

FIG. 5 is a schematic view of the cantilever, the C-shaped guide block and the engagement rectangular block.

FIG. 6 is a cross-sectional view of the C-shaped guide block and the engagement rectangular block.

FIG. 7 is a perspective view of the cantilever and the C-shaped guide block.

FIG. 8 is a cross-sectional view of the cantilever and the C-shaped guide block.

FIG. 9 is a perspective view of an engagement rectangular block.

FIG. 10 is a cross-sectional view of a splice bar.

Fig. 11 is a perspective schematic view of a spacing module.

Fig. 12 is a schematic cross-sectional view of a spacing module.

Fig. 13 is a schematic cross-sectional view of the fixing block, the first gear, the rack, the transmission bar, and the second gear in the limiting module.

Fig. 14 is a schematic cross-sectional view of the fixing block, the swing bar, the first shaft and the first gear in the limiting module.

Fig. 15 is a schematic cross-sectional view of the inner fixed block of the position limiting module, the V-shaped position limiting plate, the second shaft, the second gear, the volute spiral spring and the shaft end damper.

Fig. 16 is a perspective schematic view of a fixation block.

FIG. 17 is a cross-sectional view of the first and second swing slots in the fixed block.

FIG. 18 is a cross-sectional view of the first wheel groove, the first movable groove, the limiting sliding groove, the second movable groove and the second wheel groove in the fixed block.

FIG. 19 is a cross-sectional view of the second swing groove, the second mounting groove, the second shaft hole, the second wheel groove, the first mounting groove and the second movable groove in the fixed block.

FIG. 20 is a cross-sectional view of the first swing groove, the first axle hole and the first wheel groove in the fixing block.

Fig. 21 is a schematic view of the internal transmission of the spacing module.

FIG. 22 is a cross-sectional view of the spiral spring, the second shaft and the stationary block.

Fig. 23 is a schematic view of an adjustment mechanism.

Fig. 24 is a schematic view of a first adjustment mechanism.

Fig. 25 is a schematic cross-sectional view of the first adjustment mechanism.

Number designation in the figures: 1. a support pillar; 2. mounting grooves; 3. a vertical guide groove; 4. a limiting module; 5. a first adjustment mechanism; 6. a fixed base; 7. a Z-shaped fixing frame; 8. a shelf unit; 9. a first support mechanism; 10. a telescopic rod; 11. a second support mechanism; 12. a fixed block; 13. a first swing groove; 14. a first shaft hole; 15. a first wheel groove; 16. a first movable slot; 17. a second swing groove; 18. a second shaft hole; 19. a second wheel groove; 20. a second movable slot; 21. a limiting chute; 22. a second assembly groove; 23. a first fitting groove; 24. swinging the bar; 25. a first shaft; 26. a first gear; 27. a V-shaped limiting plate; 28. a second shaft; 29. a second gear; 30. a shaft end damper; 31. a second adjustment mechanism; 32. a volute spiral spring; 33. a limiting column; 34. a transfer strip; 35. a rack; 36. a C-shaped guide block; 37. a yielding groove; 38. a stepped circular groove; 39. a limiting groove; 40. a cantilever; 41. connecting the rectangular blocks; 42. a first chute; 43. a second chute; 44. a reset ring groove; 45. an L-shaped limiting rod; 46. a tension spring plate; 47. a return spring; 48. an adjustment mechanism.

Detailed Description

The drawings are schematic illustrations of the implementation of the present invention to facilitate understanding of the principles of structural operation. The specific product structure and the proportional size are determined according to the use environment and the conventional technology.

It includes a plurality of goods shelves unit 8, and wherein a plurality of goods shelves unit 8 is equidistant range group one row of goods shelves in proper order.

As shown in fig. 1 and 2, the shelf unit 8 includes a first supporting mechanism 9, a second supporting mechanism 11, a Z-shaped fixing frame 7, and an adjusting mechanism 48, wherein as shown in fig. 2, the first supporting mechanism 9 is fixedly connected with the second supporting mechanism 11 through the Z-shaped fixing frame 7; two ends of the adjusting mechanism 48 are respectively matched with the first supporting mechanism 9 and the second supporting mechanism 11; the structures of the first support mechanism 9 and the second support mechanism 11 and the installation positions thereof are symmetrical with respect to the center plane of the shelf unit 8.

As shown in fig. 1, the first supporting mechanism 9 includes a fixed base 6, a supporting column 1, a limiting module 4 and a C-shaped guide block 36, which are symmetrically provided with vertical guide grooves 3 on two sides, are fixedly installed on the fixed base 6, wherein as shown in fig. 2 and 4, the limiting modules 4 are respectively installed in a plurality of uniform installation grooves 2 on the supporting column 1; as shown in fig. 1, 3 and 7, two ends of the C-shaped guide block 36 with the cantilever 40 mounted on the front side surface are respectively slidably mounted in the two vertical guide grooves 3 of the support column 1, and the receding groove 37 located on the inner wall of the C-shaped guide block 36 and penetrating through the lower end surface thereof is matched with the first limiting module 4.

As shown in fig. 2 and 23, the adjusting mechanism 48 includes a first adjusting mechanism 5 and a second adjusting mechanism 31, and the first adjusting mechanism 5 and the second adjusting mechanism 31 are connected in a hinged manner; the first adjusting mechanism 5 and the second adjusting mechanism 31 on two sides of the hinge point are symmetrically distributed; as shown in fig. 24 and 25, for the first adjusting mechanism 5, it comprises an expansion link 10, an engagement rectangular block 41, an L-shaped limiting rod 45, and a return spring 47, wherein as shown in fig. 6, 8, and 9, the engagement rectangular block 41 has a stepped cylindrical shape, and one end thereof is rotatably mounted in the stepped circular groove 38 on the outer side surface of the corresponding C-shaped guide block 36; as shown in fig. 9 and 10, the first sliding groove 42 formed on the upper surface of the engaging rectangular block 41 is communicated with the second sliding groove 43 formed on the stepped cylindrical end surface; as shown in fig. 6, an L-shaped stopper rod 45 is slidably mounted in the first and second slide grooves 42 and 43; a return spring 47 is arranged on the L-shaped limiting rod 45 to enable the L-shaped limiting rod 45 to move and return; as shown in fig. 5, 6 and 8, the vertical end of the L-shaped limiting rod 45 penetrates through the first sliding groove 42, and the transverse end penetrates through the second sliding groove 43 to be matched with two limiting grooves 39 which are arranged on the side groove surface of the stepped circular groove 38 and have a circumferential distance of 90 degrees; as shown in fig. 25, one end of the telescopic rod 10 is hinged to one end of the engaging rectangular block 41 away from the stepped cylinder; as shown in fig. 23, the telescopic rods 10 in the first adjusting mechanism 5 and the second adjusting mechanism 31 are hinged; the hinge pin hinged between the two telescopic rods 10, the hinge pin hinged between the telescopic rod 10 and the connecting rectangular block 41 in the first adjusting mechanism 5, and the hinge pin hinged between the telescopic rod 10 and the connecting rectangular block 41 in the second adjusting mechanism 31 are parallel to the central axis.

As shown in fig. 11 and 12, the limiting module 4 includes a fixed block 12, a swing bar 24, a first shaft 25, a first gear 26, a V-shaped limiting plate 27, a second shaft 28, a second gear 29, a shaft end damper 30, a spiral spring 32, a limiting column 33, a transmission bar 34, and a rack 35, wherein as shown in fig. 3, 16, and 17, the fixed block 12 having a first swing groove 13 and a second swing groove 17 distributed up and down is mounted in the corresponding mounting groove 2; as shown in fig. 14 and 20, the first wheel groove 15 in the fixed block 12 is transversely communicated with the first swing groove 13 through a first shaft hole 14, and the first shaft 25 is mounted in the first shaft hole 14 through a bearing; as shown in fig. 13 and 21, one end of the first shaft 25 is provided with a first gear 26 and is located in the first wheel groove 15, and the other end is provided with a swing bar 24 and is located in the first swing groove 13; as shown in fig. 18, a first movable groove 16 is formed on the front side wall of the first wheel groove 15; as shown in fig. 15 and 19, the second wheel groove 19 in the fixed block 12 is transversely communicated with the second swing groove 17 through the second shaft hole 18, and the second shaft 28 is mounted in the second shaft hole 18 through a bearing; as shown in fig. 15 and 21, one end of the second shaft 28 is mounted in the second mounting groove 22 on the side wall of the second swing groove 17 through a shaft end damper 30, and the other end is mounted in the first mounting groove 23 communicating with the second wheel groove 19 through a bearing; as shown in fig. 3 and 21, a V-shaped limit plate 27 is fixedly mounted on the second shaft 28 and is located in the second swing groove 17; as shown in fig. 13, a second gear 29 is fixedly mounted on the second shaft 28 and located in the second wheel groove 19; as shown in fig. 15 and 22, the spiral spring 32 is nested on the second shaft 28 to reset the swing of the V-shaped retainer plate 27; as shown in fig. 18, a second movable groove 20 is formed on the rear side wall of the second wheel groove 19; as shown in fig. 13, the transmission bar 34 is slidably mounted in the limiting sliding groove 21 which vertically communicates the second movable groove 20 and the first movable groove 16; two racks 35 respectively mounted on the upper and lower end side surfaces of the transfer bar 34 are positioned on both sides of the transfer bar 34, and the two racks 35 are respectively engaged with the first gear 26 and the second gear 29; as shown in fig. 3 and 21, the limiting column 33 is installed in the second swing groove 17 to be matched with the V-shaped limiting plate 27; the V-shaped limit plate 27 and the swing strip 24 are matched with the abdicating groove 37 on the C-shaped guide block 36.

As shown in fig. 21, the first gear 26 is in a key-fit with the first shaft 25 such that the first gear 26 is synchronized with the rotation of the first shaft 25; as shown in fig. 14, two ends of the first shaft 25 are respectively in bearing fit with the inner wall of the first swing groove 13 and the inner wall of the first wheel groove 15; as shown in fig. 21, there is a keyed fit between the second gear 29 and the second shaft 28 such that the second gear 29 is synchronized with the rotation of the second shaft 28.

As shown in fig. 15 and 22, the spiral spring 32 is located in the first fitting groove 23; one end of the spiral spring 32 is connected to the inner wall of the first fitting groove 23, and the other end is connected to the outside of the second shaft 28.

As shown in fig. 5, the front end of the cantilever 40 is bent upwards to facilitate the cantilever 40 to hold more goods.

As shown in fig. 3 and 8, the receding groove 37 is located on the side wall of the C-shaped guide block 36, which is in contact with the front side surface of the support column 1, and the receding groove 37 is communicated with the lower end surface of the C-shaped guide block 36; the distance between the upper end surface of the C-shaped guide block 36 and the top surface of the abdicating groove 37 is smaller than the distance between the lower edge of the notch of the first swing groove 13 and the upper edge of the notch of the second swing groove 17, so that when the C-shaped guide block 36 is gradually separated from the swing strip 24 or the V-shaped limit plate 27 moves downwards or upwards along the vertical guide groove 3, the interference of the upward swing of one end of the V-shaped limit plate 27, which is exposed out of the front side surface of the support column 1, around the central axis of the second shaft 28 to the movement of the C-shaped guide block 36; if the V-shaped limit plate 27 and the swinging bar 24 interfere with the C-shaped guide block 36 at the same time, the whole mechanism is in a clamping state, and the height adjustment of the cantilever 40 on the goods shelf is influenced.

As shown in fig. 17, the first swing groove 13 and the second swing groove 17 are both communicated with the front side of the corresponding fixing block 12; as shown in fig. 18, the upper and lower ends of the first movable slot 16 vertically penetrate the top and bottom surfaces of the first wheel slot 15, respectively; two ends of the second movable groove 20 vertically penetrate through the top surface and the bottom surface of the second wheel groove 19 respectively; the first movable groove 16 and the second movable groove 20 provide a certain movable space for the up-and-down movement of the transmission bar 34 and the two racks 35 mounted thereon along the limiting sliding groove 21.

As shown in fig. 10, the inner wall of the second sliding groove 43 is provided with a return ring groove 44 along the circumferential direction; as shown in fig. 6, the cantilever 40 mechanism further includes a circular tension spring plate 46 with a square hole at the center, and the tension spring plate 46 is fixedly nested on the horizontal section of the L-shaped limiting rod 45 and is located in the return ring groove 44; the return spring 47 is an extension spring, one end of which is connected with the tension spring plate 46, and the other end is connected with the inner wall of the return ring groove 44; the return spring 47 returns the movement of the L-shaped stopper rod 45.

As shown in fig. 6, the width difference between the first sliding groove 42 and the vertical section of the L-shaped stop lever 45 is greater than the depth of the stop groove 39 on the stepped circular groove 38; only when the return spring 47 is located in the return ring groove 44, the difference in width between the vertical sections of the first sliding groove 42 and the L-shaped stop lever 45 is greater than the depth of the stop groove 39 on the stepped circular groove 38, and the difference in width between the vertical sections of the first sliding groove 42 and the L-shaped stop lever 45 determines the sliding amplitude of the L-shaped stop lever 45 along the second sliding groove 43; only when the width difference between the vertical sections of the first sliding groove 42 and the L-shaped limiting rod 45 is greater than the depth of the limiting groove 39 on the stepped circular groove 38, the L-shaped limiting rod 45 can completely slide out of the limiting groove 39 along the second sliding groove 43 when necessary and the rotation limitation of the engaging rectangular block 41 is released.

As shown in fig. 21, the diameter of the first gear 26 is larger than that of the second gear 29; the design is to make the swing speed of the V-shaped limit plate 27 around the central axis of the second shaft 28 greater than the swing speed of the swing bar 24 around the central axis of the first shaft 25, so that when the C-shaped guide block 36 moves downwards along the vertical guide groove 3 and is separated from the swing bar 24, the V-shaped limit plate 27 completely enters the second swing groove 17 to a certain depth without forming an obstruction to the further downward movement of the C-shaped guide block 36.

As shown in fig. 3, the upper end of the V-shaped position-limiting plate 27 on the position-limiting module 4 where the C-shaped guide block 36 stays is located in the receding groove 37 and is in a horizontal state; at this time, the end of the swing bar 24 originally exposed out of the first swing groove 13 swings upwards and completely into the first swing groove 13 around the central axis of the first shaft 25, and the volute spring 32 in the limiting module 4 is in a compressed state; the purpose of this design is: the C-shaped guide block 36 moves upwards along the vertical guide groove 3 and starts to act on the swing strip 24 after being separated from the V-shaped limit plate 27, so that the swing strip 24 swings upwards around the central axis of the first shaft 25; when the C-shaped guide block 36 moves upwards to the top end of the first swing groove 13, the swing bar 24 completely swings into the first swing groove 13 under the action of the C-shaped guide block 36, and the swing bar 24 does not form an obstacle to the upward movement of the C-shaped guide block 36 along the vertical guide groove 3, so that the cantilever 40 can be conveniently adjusted to a higher height position.

The limiting column 33 in the invention is used for limiting the unlimited swing of the V-shaped limiting plate 27 around the central axis of the second shaft 28, and ensuring that the upper end of the V-shaped limiting plate 27 stops swinging when swinging downwards around the central axis of the second shaft 28 to a horizontal position, so that the V-shaped limiting plate 27 limits the C-shaped guide block 36.

The shaft end damper 30 of the present invention utilizes high viscosity damping oil to generate a certain damping force for the rotation of the second shaft 28, such as the rotary damper in the prior art car inside safety handle.

The abdicating groove 37 has the function of providing a moving space for the swing strip 24 and the V-shaped limit plate 27, and simultaneously reducing the distance between the upper end surface of the C-shaped guide block 36 and the top surface of the abdicating groove 37 as much as possible, thereby being beneficial to the structural arrangement between the C-shaped guide block 36 and the swing strip 24 as well as the V-shaped limit plate 27; because the swinging direction of the swinging strip 24 around the central axis of the first shaft 25 is opposite to the swinging direction of the V-shaped limiting plate 27 around the central axis of the second shaft 28, if the distance between the upper end surface of the C-shaped guide block 36 and the top surface of the abdicating groove 37 is greater than the distance between the lower edge of the notch of the first swinging groove 13 and the upper edge of the notch of the second swinging groove 17, the swinging strip 24 and the V-shaped limiting plate 27 may meet the C-shaped guide block 36 at the same time in the process of the vertical guide groove 3 of the C-shaped guide block 36 moving up and down, thereby causing the jamming of the whole mechanism and being incapable of continuously adjusting the height of the cantilever 40 on the C-; only when the distance between the upper end surface of the C-shaped guide block 36 and the top surface of the abdicating groove 37 is smaller than the distance between the lower edge of the notch of the first swing groove 13 and the upper edge of the notch of the second swing groove 17, the interference of the swing strip 24 and the V-shaped limit plate 27 swinging in opposite directions to the movement of the C-shaped guide block 36 can be fundamentally avoided, and the height adjustment of the cantilever 40 is smoothly completed.

The working process of the invention is as follows: when the limiting module 4 is not matched with the C-shaped guide block 36, the upper end of the V-shaped limiting plate 27 in the limiting module 4 is exposed out of the front side surface of the supporting column 1, and one end of the swing strip 24 is exposed out of the front side surface of the supporting column 1, at this time, the volute spiral spring 32 does not deform; when the limiting module 4 meets and matches with the C-shaped guide block 36, the upper end of the V-shaped limiting plate 27 on the limiting module 4 where the C-shaped guide block 36 stays is positioned at the top of the abdicating groove 37 and is in a horizontal state; at this time, the end of the swing bar 24 originally exposed out of the first swing groove 13 swings upward completely into the first swing groove 13 around the central axis of the first shaft 25, and the volute spring 32 in the limiting module 4 deforms.

The adjustment principle of the C-shaped guide block 36 in the first support mechanism 9 and the second support mechanism 11 in the present invention is the same, taking the adjustment of the C-shaped guide block 36 in the first support mechanism 9 as an example:

when the cantilever 40 needs to be adjusted to a higher position, the C-shaped guide block 36 is manually adjusted to move upwards, and when the upwards-moving C-shaped guide block 36 meets the swing strip 24, the upper end face of the C-shaped guide block 36 stirs the exposed end of the swing strip 24 to enable the swing strip to swing upwards around the central axis of the first shaft 25; the swing bar 24 drives the first gear 26 to rotate reversely through the first shaft 25, the first gear 26 drives the second gear 29 to rotate reversely through the transmission bar 34 with the racks 35 at two ends, the second gear 29 drives the V-shaped limit plate 27 to swing downwards around the central axis of the second shaft 28 through the second shaft 28, and the volute spiral spring 32 deforms; when the C-shaped guide block 36 moves upwards to enable the swinging strip 24 to completely enter the first swinging groove 13, the upper end of the V-shaped limiting plate 27 swings to a horizontal position, and the lower end of the V-shaped limiting plate 27 is just blocked by the limiting column 33; when the C-shaped guide block 36 continues to move and is separated from the swing bar 24, under the action of the volute spiral spring 32, the second shaft 28 drives the V-shaped limit plate 27 to swing upwards slowly around the central axis of the second shaft 28 to a state when the C-shaped guide block 36 is not limited, and after transmission of the corresponding second gear 29 and the transmission bar 34, the first gear 26 drives the swing bar 24 to swing around the first shaft 25 through the first shaft 25 to a state when the C-shaped guide block 36 is not limited. The C-shaped guide block 36 is continuously adjusted to move upwards manually, when the C-shaped guide block 36 meets the V-shaped limit plate 27 in the limit module 4 above, the C-shaped guide block 36 stirs the upper end of the V-shaped limit plate 27, so that the V-shaped limit plate 27 swings upwards around the second shaft 28, the V-shaped limit plate 27 drives the swing strip 24 to swing downwards around the first shaft 25 through the second shaft 28, the second gear 29, the transmission strip 34, the first gear 26 and the first shaft 25, and the volute spiral spring 32 deforms; since the diameter of the first gear 26 is larger than that of the second gear 29, when the C-shaped guide block 36 is separated from the upper end of the V-shaped limit plate 27, one end of the swing bar 24 is still located outside the first swing groove 13; under the action of the volute spiral spring 32, the second shaft 28 drives the V-shaped limit plate 27 to swing downwards around the second shaft 28, and after corresponding transmission, the swing strip 24 swings upwards around the first shaft 25; when the C-shaped guide block 36 moves upward and catches up with the swing bar 24, the C-shaped guide block 36 pushes the swing bar 24 to swing upward around the first shaft 25, and the volute spiral spring 32 is deformed again after completely releasing energy; when the C-shaped guide block 36 continues to move upward and is separated from the swing strip 24, the swing strip 24 and the V-shaped retainer plate 27 are reset to the state when the C-shaped guide block 36 is not retained under the action of the spiral spring 32. After continuously crossing a plurality of limiting modules 4 in this way, the C-shaped guide block 36 reaches the limiting module 4 at the destination position, the C-shaped guide block 36 continues to move upwards, crosses the upper end of the V-shaped limiting plate 27 and stays at the lower edge of the first swing groove 13, and the volute spiral spring 32 deforms; the C-shaped guide block 36 stays at the lower edge of the first swing groove 13 for a period of time, and the V-shaped limit plate 27 and the swing strip 24 swing to a state when the C-shaped guide block 36 is not limited under the action of the volute spiral spring 32; then, the handle is released, the C-shaped guide block 36 moves downwards under the action of self gravity and pushes the upper end of the V-shaped limit plate 27 downwards; the upper end of the V-shaped restriction plate 27 swings downward to a horizontal position around the second shaft 28, and the lower end of the V-shaped restriction plate 27 is stopped by the stopper post 33, so that the C-shaped guide 36 is adjusted upward to a target position.

When the cantilever 40 needs to be adjusted to a lower position, the C-shaped guide block 36 is manually adjusted to move upwards, and when the upwards-moving C-shaped guide block 36 meets the swing strip 24, the upper end face of the C-shaped guide block 36 stirs the exposed end of the swing strip 24 to enable the swing strip to swing upwards around the central axis of the first shaft 25; the swing bar 24 drives the first gear 26 to rotate reversely through the first shaft 25, the first gear 26 drives the second gear 29 to rotate reversely through the transmission bar 34 with the racks 35 at two ends, the second gear 29 drives the V-shaped limit plate 27 to swing downwards around the central axis of the second shaft 28 through the second shaft 28, and the volute spiral spring 32 deforms; when the C-shaped guide block 36 moves upwards to enable the swinging strip 24 to completely enter the first swinging groove 13, the upper end of the V-shaped limiting plate 27 swings to a horizontal position, and the lower end of the V-shaped limiting plate 27 is just blocked by the limiting column 33; when the C-shaped guide block 36 moves upward and is separated from the swing bar 24, the C-shaped guide block stays for a period of time, under the action of the volute spring 32, the second shaft 28 drives the V-shaped limit plate 27 to slowly swing upward around the central axis of the second shaft 28 to a state when the C-shaped guide block 36 is not limited, and after the transmission of the corresponding second gear 29 and the transmission bar 34, the first gear 26 drives the swing bar 24 to swing around the first shaft 25 through the first shaft 25 to a state when the C-shaped guide block 36 is not limited. The manually adjusted C-guide 36 then moves rapidly downward and over several spacing modules 4 to the spacing module 4 at the destination location.

Flow in the downward crossing limiting module 4: when the C-shaped guide block 36 meets the swing bar 24 in the limiting module 4 below, the C-shaped guide block 36 shifts the swing bar 24, so that the swing bar 24 swings downwards around the first shaft 25, the swing bar 24 drives the V-shaped limiting plate 27 to swing upwards around the second shaft 28 through the first shaft 25, the first gear 26, the transmission bar 34, the second gear 29 and the second shaft 28, and the volute spiral spring 32 deforms; since the diameter of the first gear 26 is larger than that of the second gear 29, when the C-shaped guide block 36 is separated from the swing bar 24, the upper end of the V-shaped limit plate 27 swings to a certain depth in the second swing groove 17; under the action of the spiral spring 32, the second shaft 28 will drive the upper end of the V-shaped limit plate 27 to swing outwards around the second shaft 28 towards the second swing groove 17; due to the damping effect of the shaft end damper 30 on the second shaft 28, the upper end of the V-shaped limit plate 27 which is positioned in the second swing groove 17 and has a certain depth slowly swings around the second shaft 28 to the outside of the second swing groove 17; the C-shaped guide block 36 moving rapidly downward rapidly crosses the V-shaped limit plate 27 and moves toward the next limit module 4 before the V-shaped limit plate 27 swings out of the second swing groove 17; under the action of the scroll spring 32, the passed swing strip 24 and the V-shaped stopper plate 27 on the stopper module 4 swing back to the state when the C-shaped guide block 36 is not stopped.

When the C-shaped guide block 36 reaches the limiting module 4 at the destination position and stops for a period of time after passing over the swing strip 24 on the destination limiting module 4, the C-shaped guide block 36 stops for a period of time at the lower edge of the first swing groove 13, and the V-shaped limiting plate 27 and the swing strip 24 swing to a state when the C-shaped guide block 36 is not limited under the action of the volute spiral spring 32; then, the handle is released, the C-shaped guide block 36 moves downwards under the action of self gravity and pushes the upper end of the V-shaped limit plate 27 downwards; the upper end of the V-shaped restriction plate 27 swings downward about the second shaft 28 to a horizontal position, and the lower end of the V-shaped restriction plate 27 is stopped by the stopper post 33, so that the C-shaped guide 36 is adjusted downward to a desired position.

The main function of the adjusting mechanism 48 in the present invention is to synchronously adjust the C-shaped guide blocks 36 in the first supporting mechanism 9 and the second supporting mechanism 11, and also to independently adjust the C-shaped guide blocks 36 in the first supporting mechanism 9 or the second supporting mechanism 11, so as to achieve the purpose of conveniently adjusting the height of the cantilever 40.

Workflow of the adjustment mechanism 48: when long goods with irregular shapes need to be placed, the height of the cantilever 40 on the two supporting columns 1 is independently adjusted according to the specific conditions of the goods, at this time, the central axis of the hinge pin between the two telescopic rods 10 needs to be ensured to be perpendicular to the supporting columns 1, the whole adjusting mechanism 48 is in a bendable state, and then the C-shaped guide blocks 36 on the two supporting columns 1 are independently adjusted upwards or downwards to the required height to complete the height adjustment of the cantilever 40.

If the central axis of the hinge pin between the two telescopic rods 10 is parallel to the support columns 1 at this time, the two L-shaped limiting rods 45 arranged in the two connecting rectangular blocks 41 are simultaneously shifted to the position between the two support columns 1 by using two hands, so that the two L-shaped limiting rods 45 are simultaneously separated from the corresponding limiting grooves 39, the limiting grooves 39 remove the limitation on the rotation of the connecting rectangular blocks 41 around the central axis of the stepped circular groove 38, and the reset springs 47 embedded on the L-shaped limiting rods 45 are stretched; then, the connecting rectangular blocks 41 on the two sides of the adjusting mechanism 48 are simultaneously twisted by two hands, so that the connecting rectangular blocks rotate 90 degrees around the central axis of the corresponding stepped circular groove 38 towards the other limiting groove 39 in the corresponding stepped circular groove 38, the two connecting rectangular blocks 41 respectively drive the two telescopic rods 10 to synchronously rotate 90 degrees, and the two L-shaped limiting rods 45 respectively meet the other limiting groove 39 in the corresponding stepped circular groove 38 simultaneously; the acting force acting on the L-shaped limiting rods is removed, under the action of the return spring 47, the two L-shaped limiting rods 45 respectively enter the other limiting groove 39, the rotation of the two connecting rectangular blocks 41 around the central axis of the stepped circular groove 38 is limited again, and the central axis of the hinge pin between the two telescopic rods 10 is perpendicular to the supporting column 1; at this point, the entire adjustment mechanism 48 may bend in a vertical plane; then the C-shaped guide blocks 36 in the first supporting mechanism 9 or the second supporting mechanism 11 are adjusted individually, so that a required height difference is formed between the C-shaped guide blocks 36 in the first supporting mechanism 9 and the C-shaped guide blocks 36 in the second supporting mechanism 11, the distance between the two C-shaped guide blocks 36 becomes larger, the two telescopic rods 10 in the adjusting mechanism 48 are stretched to adapt to the distance change between the C-shaped guide blocks 36 in the process, the fixing method after the position adjustment of the two C-shaped guide blocks 36 is referred to the previous description, and the adjustment of the two cantilevers 40 with the height difference is finished.

When long goods with regular shapes need to be placed, the C-shaped guide blocks 36 in the first supporting mechanism 9 and the second supporting mechanism 11 are synchronously adjusted, so that the two C-shaped guide blocks 36 are located at the same required height, at this time, it is required to ensure that the central axis of the hinge pin between the two telescopic rods 10 is parallel to the supporting column 1, the whole adjusting mechanism 48 is in an unbendable state, then the adjusting mechanism 48 is manually acted on, so that the adjusting mechanism 48 drives the C-shaped guide blocks 36 located on the two sides of the adjusting mechanism 48 to synchronously move upwards or downwards to the required height along the vertical guide groove 3 on the supporting column 1, and the adjustment of the cantilever 40 is completed.

If the central axis of the hinge pin between the two telescopic rods 10 is perpendicular to the supporting column 1 and the whole adjusting mechanism 48 is in a bendable state, the C-shaped guide blocks 36 in the first supporting mechanism 9 and the second supporting mechanism 11 are separately adjusted to the same height, so that the two telescopic rods 10 are in a horizontal position; then, the L-shaped limiting rods 45 arranged in the two connecting rectangular blocks 41 are simultaneously shifted between the two supporting columns 1 by using two hands, so that the two L-shaped limiting rods 45 are simultaneously separated from the corresponding limiting grooves 39, the limiting grooves 39 remove the limitation on the rotation of the connecting rectangular blocks 41 around the central axis of the stepped circular groove 38, and the reset springs 47 embedded on the L-shaped limiting rods 45 are stretched; the two engaging rectangular blocks 41 on the two sides of the adjusting mechanism 48 are simultaneously twisted by two hands to respectively rotate 90 degrees around the central axis of the corresponding stepped circular groove 38 towards the other limiting groove 39 in the corresponding stepped circular groove 38, the two engaging rectangular blocks 41 respectively and simultaneously drive the two telescopic rods 10 to synchronously rotate 90 degrees, and the two L-shaped limiting rods 45 respectively and simultaneously meet the other limiting groove 39 in the corresponding stepped circular groove 38; the acting force acting on the L-shaped limiting rods is removed, under the action of the return spring 47, the two L-shaped limiting rods 45 respectively enter the other limiting groove 39, the rotation of the two connecting rectangular blocks 41 around the central axis of the stepped circular groove 38 is limited again, and the central axis of the hinge pin between the two telescopic rods 10 is parallel to the supporting column 1; at this point, the entire adjustment mechanism 48 cannot buckle in a vertical plane; and then acting on the adjusting mechanism 48 by hand, so that the adjusting mechanism 48 drives the C-shaped guide blocks 36 on the two sides to synchronously move upwards or downwards to a required height along the vertical guide grooves 3 on the supporting column 1, fixing the positions of the two C-shaped guide blocks 36, and finishing the adjustment of the cantilever 40.

In conclusion, the invention has the beneficial effects that: the limiting module 4 in the invention can limit the positions of the C-shaped guide block 36 and the cantilever 40, so that the positions of the C-shaped guide block 36 and the cantilever 40 which are moved to the target position are fixed, and a placing space with proper height is provided for long goods; the two C-shaped guide blocks 36 connected through the adjusting mechanism 48 can not only realize synchronous up-and-down movement and positioning at the same height along the vertical guide grooves 3 on the corresponding support columns 1, but also realize up-and-down movement and positioning at different heights; the placement of long goods with different specifications is met to the maximum extent; according to the invention, through the interaction of the limiting modules 4 in the first supporting mechanism 9 and the second supporting mechanism 11 and the C-shaped guide block 36, the cantilever 40 on the goods shelf can be randomly adjusted according to the needs to adapt to the placement of different long goods, and the goods shelf is multipurpose, so that the number of the goods shelf is reduced to a certain extent, and the cost of goods storage is reduced; in addition, can increase the combination of installing a plurality of pairs of C type guide blocks 36 and cantilever 40 at any time as required on two support columns 1, the long-type goods of different weight specifications can be placed to cantilever 40 on a pair of C type guide blocks 36 of co-altitude, the goods is heavier its position of placing on the goods shelves lower in order to strengthen the stability of goods shelves to save the place space of goods to a certain extent, further reduced the goods and placed required goods shelves quantity, furthest reduced the storage cost of goods.

Claims

1. An adjustable cantilever type goods shelf used in the field of building construction comprises a plurality of goods shelf units, wherein the goods shelf units are arranged at equal intervals in sequence to form a row of goods shelves; above-mentioned goods shelves unit includes first supporting mechanism, second supporting mechanism, its characterized in that: the shelf unit also comprises a Z-shaped fixing frame and an adjusting mechanism, wherein the first supporting mechanism is fixedly connected with the second supporting mechanism through the Z-shaped fixing frame, and two ends of the adjusting mechanism are respectively matched with the first supporting mechanism and the second supporting mechanism; the structures and the installation positions of the first supporting mechanism and the second supporting mechanism are symmetrical relative to the central plane of the shelf unit;

the first supporting mechanism comprises a supporting column, a limiting module and a C-shaped guide block, wherein the supporting column, the limiting module and the C-shaped guide block are fixedly arranged on a fixed base, and the two sides of the supporting column are symmetrically provided with vertical guide grooves; two ends of a C-shaped guide block of which the front side surface is provided with a cantilever are respectively installed in two vertical guide grooves of a support column in a sliding manner, and a abdicating groove which is positioned on the inner wall of the C-shaped guide block and penetrates through the lower end surface of the C-shaped guide block is matched with a first limiting module;

the adjusting mechanism comprises a first adjusting mechanism and a second adjusting mechanism, and the first adjusting mechanism and the second adjusting mechanism are connected in a hinged mode; the first adjusting mechanism and the second adjusting mechanism on two sides of the hinge point are symmetrically distributed in structure; for the first adjusting mechanism, the first adjusting mechanism comprises a telescopic rod, a connecting rectangular block, an L-shaped limiting rod and a return spring, wherein one end of the connecting rectangular block, which is provided with a stepped cylinder shape, is rotatably arranged in a stepped circular groove on the outer side surface of the corresponding C-shaped guide block; a first sliding groove arranged on the upper surface of the connecting rectangular block is communicated with a second sliding groove arranged on the stepped cylindrical end surface, and an L-shaped limiting rod is arranged in the first sliding groove and the second sliding groove in a sliding manner; a return spring is arranged on the L-shaped limiting rod to enable the L-shaped limiting rod to move and return; the vertical end of the L-shaped limiting rod penetrates through the first sliding groove, and the transverse end of the L-shaped limiting rod penetrates through the second sliding groove to be matched with two limiting grooves which are arranged on the side groove surface of the stepped circular groove and have a circumferential distance of 90 degrees; one end of the telescopic rod is hinged with one end of the connecting rectangular block far away from the stepped cylinder; the telescopic rods in the first adjusting mechanism and the second adjusting mechanism are hinged; the hinge pin hinged between the two telescopic rods, the hinge pin hinged between the telescopic rod and the connecting rectangular block in the first adjusting mechanism and the hinge pin hinged between the telescopic rod and the connecting rectangular block in the second adjusting mechanism are parallel to the central axis of the hinge pin;

2. The adjustable cantilever type goods shelf used in the field of building construction according to claim 1, wherein: the first gear is in key fit with the first shaft, and two ends of the first shaft are respectively in bearing fit with the inner wall of the first swing groove and the inner wall of the first wheel groove; the second gear is in key fit with the second shaft.

3. The adjustable cantilever type goods shelf used in the field of building construction according to claim 1, wherein: the scroll spring is positioned in the first assembling groove; one end of the scroll spring is connected with the inner wall of the first assembly groove, and the other end of the scroll spring is connected with the outer side of the second shaft.

4. The adjustable cantilever type goods shelf used in the field of building construction according to claim 1, wherein: the front end of the cantilever is in the shape of a hook bent upwards.

5. The adjustable cantilever type goods shelf used in the field of building construction according to claim 1, wherein: the abdicating groove is positioned on the side wall of the C-shaped guide block, which is contacted with the front side surface of the support column, and is communicated with the lower end surface of the C-shaped guide block; the distance between the upper end surface of the C-shaped guide block and the top surface of the abdicating groove is smaller than the distance between the lower edge of the notch of the first swing groove and the upper edge of the notch of the second swing groove.

6. The adjustable cantilever type goods shelf used in the field of building construction according to claim 1, wherein: the first swing groove and the second swing groove are communicated with the front side face of the corresponding fixed block; the upper end and the lower end of the first movable groove respectively vertically penetrate through the top surface and the bottom surface of the first wheel groove; two ends of the second movable groove vertically penetrate through the top surface and the bottom surface of the second wheel groove respectively.

7. The adjustable cantilever type goods shelf used in the field of building construction according to claim 1, wherein: the inner wall of the second chute is provided with a reset ring groove along the circumferential direction; the cantilever mechanism also comprises a round tension spring plate, the center of which is provided with a square hole, and the tension spring plate is fixedly arranged on the horizontal section of the L-shaped limiting rod in a nested manner and is positioned in the reset ring groove; the reset spring is an extension spring, one end of the extension spring is connected with the tension spring plate, and the other end of the extension spring is connected with the inner wall of the reset ring groove.

8. The adjustable cantilever type goods shelf used in the field of building construction according to claim 7, wherein: the width difference between the first sliding groove and the vertical section of the L-shaped limiting rod is greater than the depth of the limiting groove on the stepped circular groove.

9. The adjustable cantilever type goods shelf used in the field of building construction according to claim 1, wherein: the diameter of the first gear is larger than that of the second gear.

10. The adjustable cantilever type goods shelf used in the field of building construction according to claim 1, wherein: the upper end of a V-shaped limiting plate on the limiting module where the C-shaped guide block stays is positioned in the abdicating groove and is in a horizontal state; at the moment, one end of the swing strip, which is originally exposed out of the first swing groove, is completely swung upwards into the first swing groove around the central axis of the first shaft, and the volute spiral spring in the limiting module is in a compressed state.