Turnover cage frame convenient to adjust

Abstract

The utility model discloses a turnover cage frame convenient to adjust, which comprises a front frame assembly, a rear frame assembly, a side frame assembly and a laminate frame assembly, and front frame upright posts and rear frame upright posts are respectively and correspondingly arranged on the left side and the right side of the front frame assembly and the left side and the right side of the rear frame assembly; the front frame stand column and the rear frame stand column are each provided with a stand column guide assembly, a shelf board hooking mechanism of the shelf board frame assembly is provided with a shelf board hanging arm and a handle transverse pipe, the two ends of the handle transverse pipe are movably connected with the shelf board hanging arm, and the handle transverse pipe and a pull wire clamping plate of the shelf board hanging arm are correspondingly arranged in a hooking mode. The supporting table of the stand column guide assembly is clamped or loosened by pulling the handle transverse pipe up and down and pulling the pull wire clamping plate to rotate. Therefore, the containing space of the turnover cage frame can be flexibly adjusted according to the body types and the number of articles, the articles can be conveniently taken and placed, the working intensity is reduced, and the article turnover and storage working efficiency is improved; and the assembly stability is good, and replacement and maintenance are convenient.

Description

Technical Field

[0001] This utility model relates to the field of goods turnover and transportation equipment technology, and in particular to an easily adjustable turnover cage. Background Technology

[0002] A turnover cage is a device used for storing and transporting goods, typically consisting of a metal frame and mesh or panel fencing. Its main function is to facilitate the efficient and safe handling and storage of goods. It is widely used in logistics, manufacturing, retail, and agriculture, significantly improving work efficiency and optimizing space utilization.

[0003] In the prior art, turnover cages are usually composed of a bottom carrier plate and a surrounding mesh structure. They can be unfolded when in use and folded when not in use. For example, the Chinese utility model patent with publication number CN217456790U and patent name "A Foldable Storage Cage" has a folding movable base with a hinged edge connecting to a flip carrier plate. A storage enclosure is welded to one side of the folding movable base that is hinged to the flip carrier plate. A fixed enclosure is welded to the folding movable base. The fixed enclosure is set on the opposite side of the storage enclosure. A folding enclosure is hinged between the fixed enclosure and the storage enclosure.

[0004] However, the existing technology still has the following drawbacks:

[0005] 1. Existing turnover cages and storage cages usually have a fixed bottom plate on all four sides or a hinged bottom plate on one side. Therefore, the capacity is fixed and cannot be adjusted according to the size and quantity of the items to be turnoverd or stored. This makes it inconvenient to pick up and put down goods during turnover.

[0006] 2. In addition, the connection method of each side panel is relatively fixed, and it is impossible to adjust it longitudinally according to the shape of the item, which also causes inconvenience when the item is moved around. Utility Model Content

[0007] In order to overcome the shortcomings of the existing technology, the purpose of this utility model is to provide an easily adjustable turnover cage.

[0008] The purpose of this utility model is achieved by the following technical solution: an easily adjustable turnover cage, including a front frame assembly, a rear frame assembly, a side frame assembly and a shelf assembly, wherein the front frame assembly has front frame columns arranged on the left and right sides, and the rear frame assembly has rear frame columns arranged on the left and right sides.

[0009] Both the front frame column and the rear frame column are provided with column guide components. The column guide components have column guide grooves and support platforms. Several support platforms are arranged longitudinally in the column guide grooves.

[0010] The shelf rack assembly has a shelf hook mechanism, which includes a shelf hanging arm and a handle horizontal tube. The shelf hanging arm is equipped with a rotatable pull wire plate. The two ends of the handle horizontal tube are movably connected to the shelf hanging arm and are hooked to the pull wire plate. This allows the shelf rack assembly to slide longitudinally along the column guide groove. By pulling the handle horizontal tube up and down, the pull wire plate can be rotated to lock or release the support platform, thereby adjusting the longitudinal assembly position of the shelf rack assembly in the column guide groove.

[0011] Furthermore, two or more shelf rack assemblies are arranged side by side, and one end of each of the two shelf rack assemblies is respectively provided with an independent shelf hook mechanism, which is used to slide the shelf hanging arm along the column guide groove through the independent shelf hook mechanism, and to lock or release the support platform by rotating the pull wire clamp plate.

[0012] Furthermore, a locking hook plate is provided at the end of the handle horizontal tube, and the pull wire clamp plate has a hook rod. The end of the handle horizontal tube movably passes through the limiting hole of the shelf hanging arm and is hooked to the hook rod of the pull wire clamp plate through the locking hook plate.

[0013] Furthermore, the pull-wire clamp is rotatably connected to the shelf arm via a pivot, the hook rod is elastically connected to the shelf arm via a tension spring, and the clamping end of the pull-wire clamp is elastically pressed against the support platform via a tension spring.

[0014] Furthermore, the column guide assembly also has a column support plate, which is detachably assembled in the column guide groove, and a plurality of support platforms are arranged along the longitudinal direction of the column support plate.

[0015] Furthermore, the front frame assembly also has a front frame lifting plate, and the front frame uprights are provided with longitudinally arranged hierarchical sliding grooves. The front frame lifting plate is provided with sliding bushings on both sides and slides and rises and falls on the hierarchical sliding grooves of the front frame uprights on the left and right sides of the front frame assembly through the sliding bushings.

[0016] Furthermore, the front frame assembly also has a front frame horizontal tube and a front frame baffle connected between two front frame uprights. The front frame horizontal tube is disposed at the bottom of the front frame baffle and its two ends are respectively connected to the front frame uprights on the left and right sides of the front frame assembly.

[0017] The rear frame assembly also has a rear frame horizontal tube and a rear frame baffle connected between two rear frame columns. The rear frame horizontal tube is located at the bottom of the rear frame baffle and its two ends are respectively connected to the rear frame columns on the left and right sides of the rear frame assembly.

[0018] A diagonal bracing tube is hinged between the front frame horizontal tube and the rear frame horizontal tube, allowing the front frame baffle and the rear frame baffle to fold towards each other or unfold in opposite directions via the diagonal bracing tube.

[0019] Furthermore, it also includes a side frame assembly, which is hinged and / or snap-fitted between the front frame column and the rear frame column, so that when the front frame assembly and the rear frame assembly are folded toward each other, the side frame assembly flips and fits onto the front frame assembly and / or the rear frame assembly.

[0020] Furthermore, a brake assembly is provided on the front frame cross tube. The brake assembly has a brake push rod, a cam, and a clamping member. The cam is located at both ends of the brake push rod and pushes the clamping member to press down the caster on the front frame cross tube.

[0021] Furthermore, the side frame assembly has a left frame baffle and a right frame baffle, and the left and right sides of the left frame baffle are respectively hinged to the rear frame column on the left side of the rear frame assembly and snap-fitted to the front frame column on the left side of the front frame assembly.

[0022] The left and right sides of the right frame baffle are respectively hinged to the rear frame column on the right side of the front frame assembly and snap-fitted to the front frame column on the right side of the rear frame assembly.

[0023] When the front frame baffle and the rear frame baffle are folded towards each other, the left frame baffle is flipped and attached to the rear frame baffle, and the right frame baffle is flipped and attached to the front frame baffle.

[0024] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0025] (1) The turnover cage frame provided in this application embodiment is equipped with a shelf rack assembly. The shelf rack assembly is detachably hooked and assembled with the column guide assembly of the front frame column and the rear frame column by setting the shelf hanging arm. Moreover, when the shelf rack assembly slides longitudinally along the column guide groove, it is only necessary to manually pull up the handle horizontal tube to pull the pull wire plate on the shelf hanging arm to rotate and lock or release the support platform arranged longitudinally in the column guide groove, thereby adjusting the assembly position of the shelf rack assembly in the longitudinal direction of the column guide groove.

[0026] Compared to previous methods of using fixed base plates or single-sided hinges for turnover cages, this embodiment improves the assembly flexibility of the shelving components by assembling them in multiple layers on each column. When the items are small or few in number, the shelving components can be adjusted higher, and vice versa. This allows the turnover cage to flexibly adjust its capacity according to the size and quantity of the items, facilitating the handling of items, reducing workload, and improving the efficiency of item turnover and storage. Furthermore, it also improves the assembly stability of the shelving components and facilitates their replacement and maintenance.

[0027] (2) The front frame assembly of this application embodiment is provided with a front frame lifting plate. The front frame lifting plate is slidably assembled with the layer slide groove on the front frame column by providing sliding bushings on both sides. Compared with the previous implementation method of fixing the side plates of the turnover cage, this application makes the height of the front frame lifting plate adjustable, adapting to items of different sizes, and increasing the space utilization rate by 40%. In addition, by adjusting the height of the front frame lifting plate, it is convenient to pick up and put down items on the shelf assembly, further improving the efficiency of item turnover. Attached Figure Description

[0028] Figure 1 This is an exploded view of the front frame assembly and one of the shelf assemblies of the turnover cage in a preferred embodiment of the present invention.

[0029] Figure 2 for Figure 1 Enlarged view of point A in the middle;

[0030] Figure 3 for Figure 1 Enlarged view of point B in the middle;

[0031] Figure 4 This is a three-dimensional schematic diagram of the front frame assembly and front frame column of the turnover cage in a preferred embodiment of the present utility model.

[0032] Figure 5 for Figure 4 Enlarged view of point C in the middle;

[0033] Figure 6 This is a three-dimensional schematic diagram showing the installation of the brake assembly on the turnover cage in a preferred embodiment of the present invention;

[0034] Figure 7 for Figure 6 Enlarged view of point D;

[0035] Figure 8 This is a three-dimensional schematic diagram of the turnover cage in a preferred embodiment of the present invention, showing the front frame assembly and the rear frame assembly folding towards each other via diagonal bracing tubes, as well as the left frame baffle and the right frame baffle being flipped.

[0036] Figure 9 This is a three-dimensional schematic diagram of the turnover cage in a preferred embodiment of the present invention.

[0037] In the picture:

[0038] 10. Front frame assembly; 101. Front frame upright; 1011. Upright guide assembly; 10111. Upright guide groove; 10112. Upright support plate; 101121. Support platform; 1012. Layer slide groove; 102. Front frame baffle; 1021. Baffle insert; 1022. Partition mesh slide plate; 103. Front frame horizontal tube; 104. Front frame lifting plate; 1041. Sliding bushing;

[0039] 20. Rear frame assembly; 201. Rear frame upright; 202. Rear frame baffle; 203. Rear frame horizontal tube;

[0040] 30. Side frame assembly; 301. Left frame baffle; 302. Right frame baffle;

[0041] 40. Shelf assembly; 401. Shelf hook mechanism; 4011. Shelf hanging arm; 40111. Pull wire clamp; 40112. Limiting pulley; 40113. Hook rod; 40114. Limiting hole; 40115. Clamping end; 40116. Tension spring; 4012. Handle horizontal tube; 40121. Locking hook plate; 4013. Shelf mesh frame; 4014. Shelf partition mesh;

[0042] 50. Diagonal bracing fittings; 51. Hinge joints;

[0043] 60. Anti-slip cover;

[0044] 70. Brake assembly; 701. Brake push rod; 702. Cam; 703. Clamping element;

[0045] 80. Casters. Detailed Implementation

[0046] The present invention will be further described below with reference to the accompanying drawings and specific embodiments. It should be noted that, without conflict, the various embodiments or technical features described below can be arbitrarily combined to form new embodiments.

[0047] like Figures 1-9 As shown, an adjustable turnover cage is commonly used for storing and transporting goods, helping to efficiently and safely handle and store items. It is widely used in logistics, manufacturing, retail, and agriculture. This adjustable turnover cage includes a front frame assembly 10, a rear frame assembly 20, side frame assemblies 30, and a shelf assembly 40.

[0048] The following is a detailed description of each component. The front frame assembly 10 consists of two front frame pillars 101 (left and right), a front frame baffle 102, and a front frame horizontal tube 103. The two ends of the front frame horizontal tube 103 are welded and fixed to the front frame pillars 101 on the left and right sides of the front frame assembly 10, respectively. The front frame baffle 102 has baffle inserts 1021 on the left and right sides and the bottom side, which are inserted into the corresponding pillar slots of the front frame pillars 101 and the front frame horizontal tube 103 to achieve detachable connection.

[0049] The rear frame assembly 20 consists of a rear frame column 201, a rear frame baffle 202, and a rear frame horizontal tube 203. The two ends of the rear frame horizontal tube 203 are welded and fixed to the rear frame columns 201 on the left and right sides of the rear frame assembly 20, respectively. The left, right, and lower sides of the rear frame baffle 202 are also provided with baffle inserts 1021. Similarly, the rear frame baffle 202 is detachably connected by inserting the baffle inserts 1021 into the corresponding column slots of the rear frame column 201 and the rear frame horizontal tube 203, respectively.

[0050] The side frame assembly 30 includes a left frame baffle 301 and a right frame baffle 302. The specific arrangement of the left frame baffle 301 and the right frame baffle 302 is as follows:

[0051] The left side of the left frame baffle 301 is hinged to the left rear frame post 201 of the rear frame assembly 20 via a hinge, and the right side of the left frame baffle 301 is snapped into the right front frame post 101 of the front frame assembly 10 via a snap-fit ​​mechanism. The left side of the right frame baffle 302 is hinged to the front frame post 101 of the front frame assembly 10 via a hinge, and the right side of the right frame baffle 302 is snapped into the right rear frame post 201 of the rear frame assembly 20 via a snap-fit ​​mechanism.

[0052] In addition, the left frame baffle 301 and the right frame baffle 302 can be connected in another way. For example, the left side of the left frame baffle 301 is snapped into the slot of the left rear frame post 201 of the rear frame assembly 20 via a clip, and the right side of the left frame baffle 301 is hinged to the right front frame post 101 of the front frame assembly 10 via a hinge. The left side of the right frame baffle 302 is snapped into the slot of the front frame post 101 of the front frame assembly 10 via a clip, and the right side of the right frame baffle 302 is hinged to the right rear frame post 201 of the rear frame assembly 20 via a hinge.

[0053] Therefore, through the optimized connection settings of the left frame baffle 301 and the right frame baffle 302, the left frame baffle 301 and the right frame baffle 302 can cooperate with the folding of the front frame assembly 10 and the rear frame assembly 20 through the flipping action, thereby improving the folding and unfolding convenience of the turnover cage; and the left frame baffle 301 and the right frame baffle 302 can be connected with the front frame column 101 and the rear frame column 201 through the snap-fit ​​connection, which ensures quick disassembly and assembly, and avoids single-point stress through multi-point fixation, thereby increasing the impact resistance of the side panel connection by 30%.

[0054] Compared to previous implementation methods that required locking structures for mutual locking, the embodiments of this application do not require manual unlocking of the locking structures one by one during the folding and storage of each baffle. This reduces the number of folding steps and the intensity of operation. Moreover, it improves the structural strength and stability of each baffle of the turnover cage, and enhances the force balance and compactness of the turnover cage during folding. When unfolded, it also has a higher overall aesthetic appeal, making it easier to attract customers when displaying items in shopping malls.

[0055] Hinges 51 are provided on the front frame horizontal tube 103 and the rear frame horizontal tube 203, and the hinges 51 of the front frame horizontal tube 103 and the rear frame horizontal tube 203 are hinged together by a diagonal brace tube 50, thereby forming a hinged relationship between the front frame baffle 102 and the rear frame baffle 202. If necessary, the front frame horizontal tube 103 and the rear frame horizontal tube 203 can be hinged together by two diagonal brace tubes 50 arranged in an X-shape.

[0056] Therefore, when folding the turnover cage, the front frame assembly 10 and the rear frame assembly 20 are connected by the hinged connection of the diagonal bracing tube 50 to fold towards each other or unfold away from each other. During the folding and storage process, there is no need to manually unlock and tighten the locking structure one by one. The folding steps are few and the operation intensity is low.

[0057] Of course, before the folding operation, the shelf rack assembly 40 is first removed from each column. Shelf rack assembly 40 has shelf hooks welded to its side, which are used to hook the shelf rack assembly onto the back side of the rear frame baffle 202, and to flip the left frame baffle 301 and right frame baffle 302 with the hinged column fulcrum. Then, as the folding operation progresses, the left frame baffle 301 and right frame baffle 302 are flipped inward and attached to the inner side of the front frame baffle 102 and the rear frame baffle 202, so that the entire turnover cage forms a compact lateral folded state.

[0058] Compared to the previous method of longitudinally folding turnover cages and the need to use forklifts and other tools for handling, the implementation of this application is more convenient for handling. Since casters 80 are provided on both the front frame horizontal tube 103 and the rear frame horizontal tube 203, the turnover cage can be moved by pushing it without the need for tools, thus reducing handling costs.

[0059] A brake assembly 70 is provided on the front frame cross tube 103, including a brake push rod 701, a cam 702, and a clamping member 703. The brake push rod 701 is located below the front frame cross tube 103 for easy foot operation. The cam 702 is located at both ends of the brake push rod 701, and the cam 702 works with the clamping member 703 to press and brake the caster 80. Therefore, when the user presses the brake push rod 701, it drives the cam 702 to push the clamping member 703 down to press down the caster 80 on the front frame cross tube 103, preventing the caster 80 from sliding. The brake assembly 70 achieves one-button locking through mechanical linkage, avoiding the risk of slippage during transportation.

[0060] Both the front frame column 101 and the rear frame column 201 are provided with column guide components 1011. The column guide component 1011 has a longitudinally extending column guide groove 1011. A column support plate 10112 is installed in the column guide groove 1011. Several support platforms 101121 are arranged along the longitudinal length of the column support plate 10112. The shelf rack assembly 40 is assembled and hooked and positioned by the column guide groove 1011 and the support platforms 101121 on the column support plate 10112.

[0061] Specifically, the shelf hook mechanism 401 has a shelf hanging arm 4011, a handle horizontal tube 4012, and a shelf frame 4013. The shelf frame 4013 is arranged horizontally. Shelf hanging arms 4011 are welded and fixed to both sides of the shelf frame 4013 facing the front frame baffle 102 and the rear frame baffle 202. Several limiting pulleys 40112 are provided on the shelf hanging arm 4011, and the shelf hanging arm 4011 can be lifted and slidably mounted on the column guide groove 1011 of the front frame column 101 and the rear frame column 201 through the several limiting pulleys 40112.

[0062] The two ends of the handle horizontal tube 4012 extend towards the front frame column 101 and the rear frame column 201, respectively, and the handle horizontal tube 4012 is also arranged on the side of the shelf frame 4013 near the side frame assembly 30. In addition, the two ends of the handle horizontal tube 4012 are movably inserted through the elongated limiting holes 40114 on the shelf hanging arm 4011, so that the handle horizontal tube 4012 can move up and down within the range of the limiting holes 40114 under the user's pulling action.

[0063] The handle horizontal tube 4012 has locking hook plates 40121 at both ends. The shelf hanging arm 4011 has a pull wire clamp plate 40111 connected to the pivot. The pull wire clamp plate has a hook rod 40113. The handle horizontal tube 4012 hooks the hook rod 40113 on the pull wire clamp plate 40111 through the locking hook plates 40121 at both ends, so that the pull wire clamp plate 40111 rotates in and out on the shelf hanging arm 40111.

[0064] When the user pulls the handle horizontal tube 4012 upward, the locking hook plate 40121 hooks the hook rod 40113 of the pull cable clamp plate 40111 upward, causing the pull cable clamp plate 40111 to rotate, and the clamping end 40115 of the pull cable clamp plate 40111 disengages from the support platform 101121 on the column support plate 10112. At this time, the entire shelf assembly 40 can slide and rise freely along the column guide groove 1011.

[0065] When the user releases the handle horizontal tube 4012, the tension spring 40116 provided on the shelf hanging arm 4011 elastically stretches the pull cable clamp 40111 downward, causing the pull cable clamp 40111 to rotate downward, and the clamping end 40115 of the pull cable clamp 40111 is clamped on the support platform 101121 of the column support plate 10112, thereby positioning the entire shelf rack assembly 40 on the support platform 101121 at the corresponding height of the column support plate 10112;

[0066] Therefore, the shelf rack assembly 40 of this application embodiment is detachably hooked and assembled with the column guide assembly 1011 of the front frame column 101 and the rear frame column 201 by setting the shelf hanging arm 4011. Moreover, when the shelf rack assembly 40 slides longitudinally along the column guide groove 10111, it is only necessary to manually pull up the handle horizontal tube 4012 to pull the pull wire clamp plate 40111 on the shelf hanging arm 4011 to rotate and clamp or loosen the support platform arranged longitudinally in the column guide groove 10111, thereby adjusting the longitudinal assembly position of the shelf rack assembly 40 in the column guide groove 10111. This not only improves the assembly stability of the shelf rack assembly 40, but also facilitates the replacement and maintenance of the shelf rack assembly 40.

[0067] Compared to previous implementations of turnover cages where the base plate is fixed on all four sides or hinged on one side, this embodiment improves the assembly flexibility of the shelf rack assembly 40 by assembling the shelf rack assembly 40 in multiple layers on each column. This allows users to adjust the height of the shelf rack assembly 40 according to the amount of items stored and transported. For example, when the items are small or few in number, the shelf rack assembly 40 can be adjusted higher, and vice versa. This allows the turnover cage to flexibly adjust its capacity according to the size and quantity of items, facilitating the handling of items, reducing workload, and improving the efficiency of item turnover and storage.

[0068] In addition, anti-detachment covers 60 are installed on the top of the front frame column 101 and the rear frame column 201 respectively. When assembling the shelf rack assembly 40 on the column, the anti-detachment covers 60 are first lifted upwards, and then the limiting pulleys 40112 on the shelf hanging arm 4011 are aligned with the column guide groove 1011 for installation. After installation, the anti-detachment covers 60 are put back on to prevent the shelf rack assembly 40 from sliding out of the column guide groove 1011, which further improves the assembly stability of the shelf rack assembly 40 and makes it safer.

[0069] Preferably, the front frame assembly 10 further includes a front frame lifting plate 104, with sliding bushings 1041 on both sides of the front frame lifting plate 104, and layered sliding grooves 1012 on the front frame pillars 101 on the left and right sides of the front frame assembly 10. The sliding bushings 1041 slide and lift on the layered sliding grooves 1012 on the front frame pillars 101, and the front frame lifting plate 104 is positioned above the front frame baffle 102.

[0070] Therefore, by adjusting the height of the front frame lifting plate 104, it can accommodate items of different sizes, increasing space utilization by 40%; and by adjusting the height of the front frame lifting plate 104, it is convenient to pick up and put down items on the shelf assembly 40, further improving the efficiency of item turnover; in addition, the front frame lifting plate 104 can also be made of PET light transparent material, making it convenient for users to observe the storage and transportation of items.

[0071] Preferably, several shelving units 40 are arranged side by side, and multiple shelving units 40 can be installed side by side to meet the layering requirements. For example, in this embodiment, two shelving units 40 are arranged side by side. According to different types or quantities of items to be handled, the height of the two shelving units 40 can be adjusted independently to determine their respective handling and storage space, thereby further improving the flexibility of handling and storage operations.

[0072] In addition, a shelf partition 4014 for separating items is erected on a single shelf assembly 40 or between several shelf assemblies 40. Furthermore, a partition slide plate 1022 for cooperating and stabilizing the lower end of the shelf partition 4014 is provided on the inner side of the front frame baffle 102 and the rear frame baffle 202. The shelf partition 4014 enables the classified storage and transportation of items and is used to separate items of different sizes.

[0073] In addition, the rear frame baffle 202 is provided with two vertically arranged and parallel back sliding grooves. During the folding operation, these two back sliding grooves are used to collect the shelf partition 4014.

[0074] The above embodiments are merely preferred embodiments of this utility model and should not be construed as limiting the scope of protection of this utility model. Any non-substantial changes and substitutions made by those skilled in the art based on this utility model shall fall within the scope of protection claimed by this utility model.

Claims

1. A turntable cage that is easy to adjust, characterized in that, The front frame assembly, the rear frame assembly, the side frame assembly and the layer plate frame assembly, the front frame assembly has front frame columns arranged on the left and right sides, the rear frame assembly has rear frame columns arranged on the left and right sides; The front frame column and the rear frame column are provided with column guide assemblies, the column guide assembly has a column guide groove and a support table, and a plurality of support tables are arranged on the longitudinal direction of the column guide groove; The layer plate frame assembly is provided with a layer plate hooking mechanism, the layer plate hooking mechanism has a layer plate hooking arm and a handle cross pipe, the layer plate hooking arm is provided with a rotatable pull line clamping plate, and the two ends of the handle cross pipe are movably connected with the layer plate hooking arm and are correspondingly hooked with the pull line clamping plate, so that when the layer plate frame assembly slides along the longitudinal direction of the column guide groove, the handle cross pipe is pulled up and down to rotate the pull line clamping plate to clamp or release the support table, thereby adjusting the longitudinal assembly position of the layer plate frame assembly in the column guide groove.

2. The adjustable turn pen of claim 1, wherein, The layer plate frame assembly is provided with two or more than two layer plate frame assemblies, and one end side of the two layer plate frame assemblies is respectively provided with an independently arranged layer plate hooking mechanism, which is used for sliding along the column guide groove through the layer plate hooking arm of the independently arranged layer plate hooking mechanism, and clamping or releasing the support table through the rotation of the pull line clamping plate.

3. The adjustable turn pen of claim 1, wherein, The end of the handle cross pipe is provided with a lock hook plate, the pull line clamping plate has a hook rod, the end of the handle cross pipe is movably arranged in the limiting hole of the layer plate hooking arm and is hooked with the hook rod of the pull line clamping plate through the lock hook plate.

4. The adjustable turn pen of claim 3, wherein, The pull line clamping plate is rotatably connected with the layer plate hooking arm through a rotating shaft, the hook rod is elastically connected with the layer plate hooking arm through a tension spring, and the clamping end of the pull line clamping plate is elastically pressed against the support table through the tension spring.

5. The adjustable turn pen of claim 1, wherein, The column guide assembly is further provided with a column support plate, the column support plate is detachably assembled in the column guide groove, and a plurality of support tables are arranged on the longitudinal direction of the column support plate.

6. The adjustable turn pen of any of claims 1-5, wherein, The front frame assembly is further provided with a front frame lifting plate, the front frame column is provided with a hierarchical sliding groove arranged in the longitudinal direction, and the two sides of the front frame lifting plate are provided with sliding bushings and slide up and down in the hierarchical sliding grooves of the front frame columns on the left and right sides of the front frame assembly through the sliding bushings.

7. The adjustable turn pen of any of claims 1-5, wherein, The front frame assembly is further provided with a front frame cross pipe and a front frame baffle connected between the two front frame columns, the front frame cross pipe is arranged at the bottom of the front frame baffle and the two ends thereof are respectively connected with the front frame columns on the left and right sides of the front frame assembly. The rear frame assembly is further provided with a rear frame cross pipe and a rear frame baffle connected between the two rear frame columns, the rear frame cross pipe is arranged at the bottom of the rear frame baffle and the two ends thereof are respectively connected with the rear frame columns on the left and right sides of the rear frame assembly. The front frame cross pipe and the rear frame cross pipe are hingedly connected with a diagonal support pipe, and the front frame baffle and the rear frame baffle are folded towards each other or unfolded in the opposite direction through the diagonal support pipe.

8. The adjustable turn pen of claim 7, wherein, The front frame column and the rear frame column are hingedly and / or buckled with the side frame assembly, so that when the front frame assembly and the rear frame assembly are folded towards each other, the side frame assembly is correspondingly turned and attached to the front frame assembly and / or the rear frame assembly.

9. The adjustable turn pen of claim 7, wherein, The front frame horizontal pipe is provided with a brake assembly, the brake assembly has a brake push rod, a cam and a pressing part, the cam is arranged at both ends of the brake push rod and pushes the pressing part to press down the caster on the front frame horizontal pipe.

10. The adjustable turn pen of claim 7, wherein, The side frame assembly has a left frame baffle and a right frame baffle, the left and right sides of the left frame baffle are respectively hinged to the rear frame stand on the left side of the rear frame assembly and buckled to the front frame stand on the left side of the front frame assembly; The left and right sides of the right frame baffle are respectively hinged to the rear frame stand on the right side of the front frame assembly and buckled to the front frame stand on the right side of the rear frame assembly; When the front frame baffle and the rear frame baffle are folded towards each other, the left frame baffle is correspondingly turned and attached to the rear frame baffle, and the right frame baffle is correspondingly turned and attached to the front frame baffle.

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