Vertical rod connecting structure

Abstract

A vertical rod connecting structure comprises a vertical rod, a bottom supporting piece and a connecting assembly, and the vertical rod and the bottom supporting piece are connected through the connecting assembly. The connecting assembly comprises a connecting sleeve and a sleeving assembly; the connecting sleeve is fixed on the bottom supporting piece and is provided with a sleeve hole with an open top, and the sleeve hole is an inverted conical hole with a wide upper part and a narrow lower part; the bottom of the vertical rod is fixedly sleeved with a sleeving assembly and then inserted into the sleeve hole, and the outer wall of the sleeving assembly is a conical wall matched with the sleeve hole. When the vertical rod and the bottom supporting piece are assembled, the bottom of the vertical rod can be directly and conveniently inserted into the connecting sleeve after the sleeving assembly is fixed to the bottom of the vertical rod, at the moment, the conical wall of the sleeving assembly can be continuously attached to the inverted-conical-hole-shaped sleeving hole downwards due to the dead weight of the vertical rod, the vertical rod and the sleeving hole are matched more tightly from top to bottom, and the vertical rod and the sleeving hole can be tightly matched all the time; the possibility of shaking between the vertical rod and the connecting sleeve is avoided, the connecting stability between the vertical rod and the bottom supporting piece can be improved, use by a user is facilitated, and the use experience of the user is effectively improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of hardware connecting piece, in particular to a vertical rod connecting structure. BACKGROUND

[0002] On the floor type product such as clothes tree, usually have the vertical rod of support, the vertical rod bottom connects the base, and the top sets up the structure such as hanging pole to realize the corresponding clothes and hat function of hanging.

[0003] The vertical rod and the base between the existing usually adopt the mode of screwing or screw locking to connect.But the screwing connection mode needs to carry out tapping treatment on the vertical rod and the base respectively, and the production manufacturing cost is higher, and due to the limitation of tapping accuracy, the thread connection between the vertical rod and the base of screwing connection cannot be tight, and is easy to shake in the use process, and the overall clothes tree structure is not stable enough.The screw locking connection mode usually needs to be tapped in the hole in the side wall of the vertical rod, and the number of screw thread is usually less, which leads to the stability of screw locking is poor, and the shaking problem still appears in long-term use, and the installation of the vertical rod and the base still needs to be completed by using screwdriver and other tools, and the assembling operation is more troublesome, and the user experience is poor. CONTENT OF THE UTILITY MODEL

[0004] The utility model aims at providing a vertical rod connecting structure, which has the advantages of convenient assembly, stable anti-shaking and good user experience.

[0005] In order to achieve the above-mentioned purpose, the solution of the utility model is as follows:

[0006] A vertical rod connecting structure, comprising a vertical rod, a bottom support and a connecting assembly, the vertical rod and the bottom support are connected through the connecting assembly;

[0007] The connecting assembly comprises a connecting sleeve and a sleeve assembly;

[0008] The connecting sleeve is fixed on the bottom support and has a sleeve hole with a top opening, and the sleeve hole is a reverse taper hole with a wide top and a narrow bottom;

[0009] The vertical rod is inserted into the sleeve hole after being fixed with the sleeve assembly at the bottom, and the outer wall of the sleeve assembly is matched with the tapered wall of the sleeve hole.

[0010] Further, the sleeve assembly comprises two half sleeve bodies that are movably buckled and matched; the two half sleeve bodies are detachably tightly fixed on the bottom of the vertical rod.

[0011] Further, the bottom of the vertical rod is provided with at least one annular clamping groove; the two half sleeve bodies of the sleeve assembly tightly hold the outer wall of the vertical rod, and the inner wall of the sleeve assembly composed of the two half sleeve bodies protrudes an annular rib embedded in the annular clamping groove.

[0012] Further, a plurality of annular clamping grooves are arranged on the outer wall of the vertical rod at intervals.

[0013] Further, the bottom of the vertical rod is provided with at least one set of positioning holes, each set of positioning holes including two symmetrically arranged insertion holes; the two half sleeve bodies of the sleeve assembly tightly embrace the outer wall of the vertical rod, and the inner walls of the two half sleeve bodies are respectively provided with insertion columns inserted into the insertion holes.

[0014] Further, a plurality of sets of positioning holes are arranged on the outer wall of the vertical rod at intervals.

[0015] Further, the bottom support member includes a plurality of support legs, each support leg being distributed at intervals in the circumferential direction of the connecting sleeve and being detachably connected with the connecting sleeve; the connecting sleeve is suspendedly arranged at the middle part of the bottom support member.

[0016] Further, the bottom support member includes a horizontal pipe, two vertical pipes and a double-headed screw rod; the connecting sleeve of the connecting assembly is fixed at the middle part of the top surface of the horizontal pipe, the end surfaces of the two vertical pipes are provided with connecting screw holes, the double-headed screw rod is longitudinally arranged in the horizontal pipe through hole longitudinally arranged in the side wall of the middle part of the horizontal pipe, and the threaded portions of the two ends of the double-headed screw rod are extended out of the two sides of the horizontal pipe through hole and are respectively threadedly connected into the connecting screw holes of the two vertical pipes, so that the two vertical pipes and the horizontal pipe are locked as a whole to form a cross-shaped support pipe.

[0017] Further, the vertical rod is a hollow pipe body; the vertical rod, the bottom support member and the connecting sleeve are all made of metal; and the sleeve assembly is made of plastic.

[0018] Further, the laundry rack further includes an upper connecting assembly; the upper connecting assembly includes an upper connecting sleeve and an upper sleeve assembly; the upper connecting sleeve has an upper sleeve hole penetrating through both ends of the upper connecting sleeve, and the upper sleeve hole is a tapered hole with a narrow upper part and a wide lower part; the upper sleeve assembly is fixedly sleeved on the top of the vertical rod, the upper connecting sleeve is sleeved on the outer periphery of the upper sleeve assembly, and the outer wall of the upper sleeve assembly is a tapered wall matched with the tapered hole of the upper sleeve hole; and the upper connecting sleeve is used for connecting a functional member.

[0019] Further, the functional member is at least one hanging rod.

[0020] Further, two vertical rod connecting structures are matched with a bottom rod and a functional member to form a laundry rack structure; the bottom support member is a vertical rod; the functional member is a laundry rod; the bottom rod extends horizontally; two sets of vertical rod connecting structures are arranged at intervals in the horizontal direction, and the bottom rod and the functional member are respectively detachably arranged between the two bottom support members and the two upper connecting sleeves.

[0021] Further, the longitudinal rod bottom of the bottom support is further provided with a moving wheel; the functional part and the bottom rod are further provided with a middle horizontal rod; the two ends of the middle horizontal rod are respectively detachably connected to the middle connecting assembly of the middle part of the vertical rod, and the structure of the middle connecting assembly is same as that of the upper connecting assembly.

[0022] Further, the top of the connecting sleeve extends upwardly with a protruding sleeve assembly extension, the extension is provided with a threaded lock hole in communication with the sleeve hole, a quick release screw is movably screwed in the threaded lock hole, the quick release screw can be rotated to extend into the connecting sleeve to tightly press the side wall of the vertical rod inserted into the connecting sleeve.

[0023] After the above technical scheme is adopted, when the vertical rod and the bottom support are assembled, no tool is needed, the vertical rod bottom fixing sleeve assembly can be directly and conveniently inserted into the connecting sleeve on the bottom support, at this time, the tapered wall of the sleeve assembly will be continuously tightly attached to the inverted tapered hole-shaped sleeve hole under the weight of the vertical rod, the cooperation between the vertical rod and the sleeve hole is tighter and tighter from top to bottom, the two can always keep close cooperation, the possibility of shaking between the vertical rod and the connecting sleeve is avoided, the connection stability between the vertical rod and the bottom support can be improved, the user can be conveniently used, and the user experience is effectively improved. BRIEF DESCRIPTION OF DRAWINGS

[0024] Figure 1 It is a perspective view of the utility model embodiment 1;

[0025] Figure 2 It is an exploded view of the utility model embodiment 1;

[0026] Figure 3 It is Figure 2 It is the enlarged view of A of

[0027] Figure 4 It is a sectional view of the utility model embodiment 1;

[0028] Figure 5 It is the enlarged view of B of Figure 4

[0029] It is the enlarged view of C of Figure 6 Figure 4

[0030] Figure 7 It is a perspective view of the utility model embodiment 2;

[0031] Figure 8 It is an exploded view of the utility model embodiment 2;

[0032] Figure 9 It is the enlarged view of D of Figure 8

[0033] Figure 10 ​​​This is a partial cross-sectional view of Embodiment 2 of the present invention;

[0034] Figure 11 This is a partial cross-sectional view of Embodiment 3 of the present invention;

[0035] Figure 12 This is a perspective view of Embodiment 4 of the present invention;

[0036] Figure 13 This is a partial exploded view of Embodiment 4 of the present invention;

[0037] Figure 14 This is a perspective view of embodiment 5 of the present invention;

[0038] Figure 15 A perspective view of embodiment 5 of this utility model with an added central crossbar.

[0039] Labeling Explanation: 1. Upright pole, 11. Annular groove, 12. Positioning hole, 121. Bottom support 2. Support foot 21. Stud 211. Horizontal tube 22. Horizontal tube through hole 221. Vertical tube 23. Connecting screw hole 231. Double-ended screw 24. Threaded part 241. Vertical rod 25. Connecting assembly 3. Connecting sleeve 31. Sleeve hole 311. Extension part 312. Connecting threaded hole 313. Fitting assembly 32. Half-sleeve 321. Annular rib 322. Insertion post 323. Upper connecting assembly 4. Upper connecting sleeve 41. Upper sleeve hole 411. Upper fitting assembly 42. Functional component 5. Hanging rod 51. Clothes drying rod 52. Quick release screw 6. Base rod 7. Moving wheel 8. Middle horizontal bar 9. Middle connecting assembly 10. Detailed Implementation

[0040] To make the objectives, technical solutions, and advantages of the embodiments of this application clearer, the technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. The components of the embodiments of this application described and shown in the accompanying drawings can generally be arranged and designed in various different configurations.

[0041] Example 1

[0042] like Figures 1 to 6 As shown, a pole connection structure in this embodiment includes a pole 1, a bottom support 2, and a connecting assembly 3. The pole 1 and the bottom support 2 are connected by the connecting assembly 3.

[0043] The connecting component 3 includes a connecting sleeve 31 and a fitting component 32.

[0044] The connecting sleeve 31 is fixed on the bottom support 2 and has a sleeve hole 311 with a top opening, and the sleeve hole 311 of the embodiment is through from top to bottom, and the sleeve hole 311 is an inverted taper hole with a wide top and a narrow bottom. The sleeve assembly 32 is sleeved and fixed at the bottom of the stand 1, and the outer wall of the sleeve assembly 32 is a tapered wall matched with the sleeve hole 311.

[0045] Therefore, when assembling the stand 1 and the bottom support 2, the stand 1 can be directly and conveniently inserted into the connecting sleeve 31 on the bottom support 2 after the sleeve assembly 32 is fixed at the bottom of the stand 1. At this time, the tapered wall of the sleeve assembly 32 will continuously adhere to the inverted taper hole-shaped sleeve hole 311 under the action of the weight of the stand 1, so that the cooperation between the stand 1 and the sleeve hole 311 is tighter and tighter from top to bottom, and the stand 1 and the sleeve hole 311 can always be tightly matched, avoiding the possibility of shaking between the stand 1 and the connecting sleeve 31, improving the connection stability between the stand 1 and the bottom support 2, facilitating the use of users, and effectively improving the user experience.

[0046] As shown in Figure 3 and Figure 5 In the embodiment, the sleeve assembly 32 includes two half sleeve bodies 321 that are movably buckled and matched. The two half sleeve bodies 321 are detachably tightly fixed at the bottom of the stand 1.

[0047] Specifically, the bottom of the stand 1 can be provided with at least one annular clamping groove 11. In the embodiment, a plurality of annular clamping grooves 11 are arranged on the outer wall of the stand 1 in an interval from top to bottom, so as to form a bamboo joint pipe.

[0048] The two half sleeve bodies 321 of the sleeve assembly 32 tightly embrace the outer wall of the stand 1, and the inner wall of the sleeve assembly 32 composed of the two half sleeve bodies 321 protrudes an annular rib 322 embedded in the annular clamping groove 11.

[0049] Therefore, the sleeve assembly 32 can be conveniently and quickly buckled and fixed at the bottom of the stand 1 by means of the split half sleeve bodies 321, and the positioning is realized by the embedding of the annular rib 322 and the annular clamping groove 11, so that the stand 1 can be inserted and tightly fixed in the sleeve hole 311 of the connecting sleeve 31 by means of the sleeve assembly 32.

[0050] The wall thickness of the half sleeve body 321 is thick at one end and thin at the other end, so that the sleeve assembly 32 can realize good insertion and tight fixing effect in cooperation with the sleeve hole 311.

[0051] In the embodiment, the stand 1 can be a hollow pipe body, the stand 1, the bottom support 2 and the connecting sleeve 31 can all be made of metal, and the sleeve assembly 32 is made of plastic.

[0052] The hollow pipe body facilitates weight reduction, the metal pipe body of the stand 1 can facilitate the processing of the annular clamping groove 11 on the outer wall thereof, the tapered hole in the connecting sleeve 31 can also be conveniently processed by a lathe, and the sleeve assembly 32 can be conveniently formed by injection molding. Thus, the overall product can be conveniently manufactured, the processing cost is low, and the production efficiency is high.

[0053] For example, as shown in the drawings, Figure 1 The bottom support 2 of the embodiment can include a plurality of support feet 21, which can be hollow pipe bodies. In the embodiment, four "L"-shaped support feet 21 are taken as an example. The support feet 21 are circumferentially and equidistantly distributed on the outer periphery of the connecting sleeve 31 and are detachably connected with the connecting sleeve 31, so as to realize the disassembly of the bottom support 2, reduce the product packaging volume, and facilitate transportation.

[0054] Specifically, as shown in the drawings, Figure 3 The support feet 21 can protrude a threaded stud 211, which can be screwed into the connecting threaded hole 312 provided on the connecting sleeve 31 (in the drawings, only the schematic drawing method is shown, and the connecting sleeve 31 of the actual product can be provided with a wall thickness of a certain thickness to facilitate tapping in the connecting hole 312). Thus, the bottom support 2 has good supporting performance, and the stability of the stand 1 is improved, and the stand 1 is less likely to shake.

[0055] Meanwhile, the connecting sleeve 31 of the embodiment can be suspended in the middle of the bottom support 2. Thus, the bottom of the stand 1 can be suspended on the bottom surface, and the bottom of the stand 1 can have sufficient descending space, so as to ensure that the stand 1 can move downward to press the sleeve assembly 32 in the sleeve hole 311 of the connecting sleeve 31.

[0056] Of course, the descending space of the bottom of the stand 1 can also be ensured to be sufficient by controlling the axial length of the lengthened sleeve hole 311.

[0057] For example, as shown in the drawings, Figure 1 , Figure 2 and Figure 6 The stand 1 of the embodiment can be applied to the rod body of a clothes rack. Thus, the upper connecting assembly 4 can also be included to realize the hanging of clothes.

[0058] In the embodiment, the structure of the upper connecting assembly 4 is symmetrical with the structure of the connecting assembly 3.

[0059] Specifically, the upper connecting assembly 4 includes an upper connecting sleeve 41 and an upper sleeve assembly 42. The upper sleeve hole 411 of the upper connecting sleeve 41 is vertically through, and the upper sleeve hole 411 is a tapered hole with a narrow upper part and a wide lower part. The upper sleeve assembly 42 is fixedly sleeved on the top of the stand 1, and the outer wall of the upper sleeve assembly 42 is a tapered wall matched with the upper sleeve hole 411.

[0060] Therefore, after the upper fitting assembly 42 is fixed to the top of the upright 1, the upper connecting sleeve 41 can be fitted onto the outer periphery of the upper fitting assembly 42, and the further downward it moves, the tighter it becomes, thus realizing the operation of fixing the upper connecting sleeve 41 to the top of the upright 1. Furthermore, the multiple annular grooves 11 on the outer wall of the upright 1 can easily adjust the installation position of the upper fitting assembly 42.

[0061] The structure of the upper fitting component 42 also includes two separate half-fitting bodies 321, and the specific structure can be symmetrical with the structure of the fitting component 32.

[0062] Meanwhile, the upper connecting sleeve 41 can be connected to a functional component 5, which can be at least one hanging rod 51. In this embodiment, there are three hanging rods 51 that are detachably connected to the outer wall of the upper connecting sleeve 41 at circumferential intervals, thereby facilitating the hanging of clothes and hats and forming a corresponding coat rack structure.

[0063] Of course, the structure of this embodiment can also be applied to various floor-standing devices with columns, such as floor umbrellas, floor lamps, floor fans, etc.

[0064] Example 2

[0065] like Figures 7 to 10 As shown, the structure of this embodiment is basically the same as that of the above embodiments. The main difference is that the structures of the upright 1 and the fitting assembly 32 are different in this embodiment.

[0066] In this embodiment, the bottom of the upright 1 is provided with at least one set of positioning holes 12, and each set of positioning holes 12 includes two symmetrically arranged insertion holes 121; the two half-sleeves 321 of the fitting assembly 32 hug the outer wall of the upright 1, and the inner walls of the two half-sleeves 321 respectively have insertion posts 323 inserted into the insertion holes 121.

[0067] Therefore, when the two half-body 321 of the fitting assembly 32 in this embodiment are joined together, they can be fixed by inserting the plug post 323 into the plug hole 121.

[0068] Meanwhile, in this embodiment, a set of positioning holes 12 are provided at the bottom and top of the outer wall of the upright 1, so as to install the upper connecting component 4 and the connecting component 3 respectively.

[0069] Alternatively, several sets of positioning holes 12 (not shown in the figure) can be provided at intervals on the outer wall of the upright 1 to facilitate the adjustment of the positions of the upper connecting component 4 and the connecting component 3.

[0070] Example 3

[0071] like Figure 11As shown, the structure of the embodiment is basically the same as that of the above-mentioned embodiment, and the main difference is that the top of the connecting sleeve 31 of the embodiment extends upward with an extension 312 that covers the assembly 42, and the extension 312 is provided with a threaded lock hole 313 that communicates with the sleeve hole 311, and the threaded lock hole 313 movably screws the quick-release screw 6, which can rotate and extend into the connecting sleeve 31 to tightly press the side wall of the stand rod 1 inserted into the connecting sleeve hole 311, thereby achieving limiting and preventing the stand rod 1 from being separated from the connecting sleeve 31 and the bottom support 2, and improving the stability of the product.

[0072] Embodiment 4

[0073] As shown in Figure 12 and Figure 13 , the structure of the embodiment is basically the same as that of the above-mentioned embodiment, and the main difference is that the bottom support 2 in the embodiment is a cross-shaped support pipe, which includes a horizontal pipe 22, two vertical pipes 23, and a double-headed screw rod 24; the connecting sleeve 31 of the connecting assembly 3 is welded and fixed to the middle of the top surface of the horizontal pipe 22, the end surfaces of the two vertical pipes 23 can be provided with connecting screw holes 231, the double-headed screw rod 24 can be longitudinally arranged in the horizontal pipe through hole 221 provided in the middle side wall of the horizontal pipe 22, and the threaded portions 241 at both ends of the double-headed screw rod 24 can extend out of both sides of the horizontal pipe through hole 221 and be threadedly connected to the connecting screw holes 231 of the two vertical pipes 23, respectively, so that the two vertical pipes 23 and the horizontal pipe 22 are locked together to form a cross-shaped support pipe, thereby ensuring good support effect of the bottom support 2 and improving the stability of the stand rod 1, and the detachable structure also facilitates the packaging and transportation of the product, reducing the packaging and transportation cost.

[0074] Embodiment 5

[0075] As shown in Figure 14 , the embodiment provides a clothes drying rack structure assembled by a stand rod connecting structure.

[0076] The clothes drying rack includes two stand rod connecting structures, a functional piece 5, and a bottom rod 7.

[0077] The stand rod connecting structure is similar to the structure of the above-mentioned embodiment and also includes a stand rod 1, a bottom support 2, a connecting assembly 3, and an upper connecting assembly 4.

[0078] The stand rod 1 of the embodiment is a bamboo joint pipe with a plurality of annular clamping grooves 11, the bottom support 2 is a vertical rod 25, the connecting assembly 3 includes a connecting sleeve 31 and a covering assembly 32, the bottom of the connecting sleeve 31 is welded and fixed to the middle of the top surface of the bottom support 2, and the upper connecting assembly 4 includes an upper connecting sleeve 41 and an upper covering assembly 42.

[0079] The functional component 5 is a clothes drying rod 52. The bottom rod extends laterally, and the two sets of upright connecting structures are arranged laterally at intervals. The bottom rod 7 and the functional component 5 are respectively detachably set between the two bottom support components 2 and the two upper connecting sleeves 41, thus forming a clothes drying rack structure. The overall structure is stable and reliable, and is easy and quick to assemble, making it convenient to hang and dry clothes.

[0080] The clothes drying rod 52 and the bottom rod 7 can be detachably connected to the bottom support 2 or the upper connecting sleeve 41 by means of screws or studs, which makes it easier to reduce the packaging volume.

[0081] The bottom of the vertical rod 25 of the bottom support member 2 may also be provided with casters 8 to facilitate the movement of the clothes rack.

[0082] For example Figure 15 As shown, one or more central crossbars 9 may be provided between the functional component 5 and the base rod 7. This embodiment takes one as an example.

[0083] Since the upright 1 has several annular slots 11, the two ends of the middle crossbar 9 can be detachably connected and fitted onto the middle connecting component 10 at an appropriate position in the middle of the upright 1. The structure of the middle connecting component 10 is the same as that of the upper connecting component 4. In this way, the middle crossbar 9 can be used to strengthen the clothes rack structure and increase the hanging space.

[0084] The above description is merely a preferred embodiment of this utility model. The protection scope of this utility model is not limited to the above embodiments. All technical solutions falling within the scope of this utility model's concept are protected by this utility model. It should be noted that for those skilled in the art, equivalent changes and modifications without departing from the principle of this utility model should still fall within the protection scope of this utility model.

[0085] In the description of the embodiments of this application, it should be understood that the indicated orientations or positional relationships are based on the orientations or positional relationships shown in the accompanying drawings, or the orientations or positional relationships commonly used when the product is in use, or the orientations or positional relationships commonly understood by those skilled in the art. These are only for the convenience of describing this application and simplifying the description, and are not intended to indicate or imply that the device or component referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this application. In the description of this application, "a plurality of" and "several" mean two or more, unless otherwise explicitly specified.

Claims

1. A vertical rod connecting structure, characterized in that: it comprises a vertical rod, a bottom support and a connecting assembly, the vertical rod and the bottom support are connected through the connecting assembly; the connecting assembly comprises a connecting sleeve and a sleeve assembly; the connecting sleeve is fixed on the bottom support and has a sleeve hole with a top opening, the sleeve hole is a reverse taper hole with a wide top and a narrow bottom; the vertical rod is inserted into the sleeve hole after the sleeve assembly is fixed on the bottom of the vertical rod, and the outer wall of the sleeve assembly is matched with the taper wall of the sleeve hole; the sleeve assembly comprises two half sleeve bodies which are movably buckled together; the two half sleeve bodies are detachably tightly fixed on the bottom of the vertical rod; the bottom of the vertical rod is provided with at least one annular clamping groove; the outer wall of the vertical rod is tightly buckled by the two half sleeve bodies, and the inner wall of the sleeve assembly formed by the two half sleeve bodies is provided with an annular rib which is embedded in the annular clamping groove; a plurality of annular clamping grooves are arranged on the outer wall of the vertical rod in an up-down interval; the bottom of the vertical rod is provided with at least one set of positioning holes, each set of positioning holes comprises two symmetrical insertion holes; the outer wall of the vertical rod is tightly buckled by the two half sleeve bodies, and the inner wall of the sleeve assembly formed by the two half sleeve bodies is respectively provided with an insertion column which is inserted into the insertion hole; a plurality of sets of positioning holes are arranged on the outer wall of the vertical rod in an up-down interval; the bottom support comprises a plurality of support legs which are distributed in a circumferential interval on the outer periphery of the connecting sleeve and are detachably connected with the connecting sleeve; the connecting sleeve is suspendedly arranged in the middle part of the bottom support; the bottom support comprises a cross pipe, two longitudinal pipes and a double-headed screw rod; the bottom of the connecting sleeve of the connecting assembly is fixed on the middle part of the top surface of the cross pipe, the end surfaces of the two longitudinal pipes are provided with connecting screw holes, the double-headed screw rod is longitudinally arranged in the cross pipe through hole which is longitudinally arranged in the side wall of the middle part of the cross pipe, and the two threaded ends of the double-headed screw rod are arranged outside the cross pipe through hole on both sides and are respectively threadedly connected with the connecting screw holes of the two longitudinal pipes, so that the two longitudinal pipes and the cross pipe are locked as a whole to form a cross-shaped support pipe; the structure of the upper connecting assembly is the same as that of the connecting assembly; the upper connecting sleeve has an upper sleeve hole which is through the two ends and is a taper hole with a narrow top and a wide bottom; the upper sleeve assembly is detachably fixed on the top of the vertical rod, the upper sleeve is arranged on the outer periphery of the upper sleeve assembly, and the outer wall of the upper sleeve assembly is matched with the taper wall of the upper sleeve hole; the upper connecting sleeve is used for connecting a functional member; the functional member is at least one hanging rod; two vertical rod connecting structures are matched with a bottom rod and a functional member to form a clothes drying rack structure; the bottom support is a longitudinal rod; the functional member is a clothes drying rod; the bottom rod extends horizontally; two sets of vertical rod connecting structures are arranged in a horizontal interval, and the bottom rod and the functional member are respectively detachably arranged between the two bottom supports and the two upper connecting sleeves; the longitudinal rod of the bottom support is further provided with a moving wheel; a middle horizontal rod is further arranged between the functional member and the bottom rod; the two ends of the middle horizontal rod are respectively detachably connected to the middle connecting assembly which is fixed on the middle part of the vertical rod, and the structure of the middle connecting assembly is the same as that of the upper connecting assembly. ​ ​ ​ ​ 2. The upright connecting structure according to claim 1, wherein: ​ 3. A stand structure according to claim 2, characterized in that: ​ 4. The upright post connecting structure according to claim 3, wherein: ​ 5. The upright post connecting structure according to claim 2, wherein: ​ 6. A stand structure according to claim 5, wherein: ​ 7. The stand structure according to claim 1, wherein: ​ 8. The stand structure according to claim 1, wherein: ​ 9. The stand structure according to claim 1, wherein: ​ 10. The upright post connecting structure according to claim 9, wherein: ​ 11. The stand structure according to claim 9, wherein: ​ 12. The stand structure according to claim 11, wherein: ​ 13. The stand structure according to claim 1, wherein: The top of the connecting sleeve extends upwardly with a protruding extension part of the sleeve fitting assembly, and a threaded locking hole of the sleeve hole is arranged on the extension part, and a quick release screw is movably screwed in the threaded locking hole, and the quick release screw can be rotated to extend into the connecting sleeve to tightly press the side wall of the vertical rod inserted into the connecting sleeve hole.

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