Rod piece fixing structure

Abstract

The utility model discloses a rod piece fixing structure which comprises a connecting sleeve. The connecting sleeve is provided with a sleeve hole with two through ends, and the sleeve hole is a taper hole with a narrow upper part and a wide lower part; at least two connecting fins are arranged on the outer wall of the connecting sleeve; the connecting fins rotate around the center line of the sleeve hole and are distributed on the periphery of the connecting sleeve at intervals. Connecting through holes are formed in the connecting fins; the connecting sleeve is used for being arranged on a vertically-arranged supporting rod in a sleeving mode, and the connecting fin is used for being locked and fixed to a horizontally-arranged horizontal supporting rod. Therefore, the connecting sleeve is of an independent structure and can be detachably connected with the supporting rod, the connecting sleeve is provided with the connecting wing piece, and the connecting wing piece is provided with the connecting through hole, so that the vertical supporting rod can be conveniently connected with the transverse horizontal supporting rod through the connecting sleeve, and the commodity shelf structure can be conveniently formed.

Description

Technical Field

[0001] The utility model relates to the technical field of hardware connectors, in particular to a rod fixing structure. Background Art

[0002] As a commonly used storage rack, storage racks are widely used for goods storage in supermarkets, warehouses, express delivery points, etc. Common storage racks include corrugated racks, angle steel racks, etc. For example, the storage device disclosed in Chinese patent CN2263478Y includes a plurality of support rods and a plurality of horizontal racks, and the horizontal racks and the support rods are usually connected by connecting parts; the horizontal racks in this scheme are integrally fixed with a trumpet-shaped sleeve, which can be adjustably fixedly connected to the support rods through the trumpet-shaped sleeve and the fitting element; however, since the trumpet-shaped sleeve is integrally located on the horizontal rack, when the product is installed, it is necessary to accurately position the positions of the support rods relative to each other, otherwise the trumpet-shaped sleeve cannot be smoothly inserted into the support rods, which makes the installation and disassembly of the storage device more difficult. Utility Model Content

[0003] The utility model aims to provide a rod fixing structure which has the advantage of convenient installation and disassembly.

[0004] In order to achieve the above purpose, the solution of the utility model is:

[0005] A rod fixing structure includes a connecting sleeve; the connecting sleeve has a sleeve hole that passes through both ends, and the sleeve hole is a tapered hole that is narrow at the top and wide at the bottom; the outer wall of the connecting sleeve is provided with at least two connecting wings; each connecting wing rotates around the center line of the sleeve hole and is distributed on the outer periphery of the connecting sleeve at intervals; the connecting wing is provided with a connecting through hole; the connecting sleeve is used to be sleeved on a vertically arranged support rod, and the connecting wing is used to be locked and fixed with a horizontal support rod arranged horizontally.

[0006] Furthermore, it also includes the support rod, the sleeve assembly, the horizontal support rod and the connecting piece; a plurality of annular grooves are provided on the outer wall of the support rod; the sleeve assembly includes two half-sleeves that are movably snap-fitted; the inner wall of the sleeve assembly is movably fitted to the outer wall of the support rod, and the inner wall of the sleeve assembly protrudes with annular ribs that are embedded in the annular grooves; the outer wall of the sleeve assembly is a conical wall that matches the sleeve hole; the end of the horizontal support rod is provided with a connecting through hole corresponding to the connecting through hole of the connecting wing; the number of the connecting pieces corresponds to the number of the connecting through holes, and the connecting pieces pass through the connecting through holes and the connecting through holes in sequence to lock and fix the horizontal support rod and the connecting wing.

[0007] Furthermore, the connecting parts are bolts and nuts.

[0008] Furthermore, the horizontal cross-section of the sleeve hole is circular, elliptical, triangular or rectangular; the outer wall of the connecting sleeve is a cylindrical side, a truncated cone side or a prism side; and the connecting wing is welded and fixed to the outer wall of the connecting sleeve.

[0009] Furthermore, the connecting wing is perpendicular to the outer wall of the connecting sleeve, the inner side of the connecting wing is connected to a locking portion that is close to the outer wall of the connecting sleeve, and the locking portion is locked and fixed to the outer wall of the connecting sleeve.

[0010] Furthermore, it also includes connecting screws; the locking portion is provided with at least two connecting holes spaced apart from each other; a locking hole is provided on the outer wall of the connecting sleeve corresponding to the connecting hole, and an internal thread is provided in the locking hole; the number of connecting screws corresponds to the number of connecting holes, and the connecting screws pass through the connecting holes and are locked in the locking holes to lock and fix the connecting wing and the connecting sleeve

[0011] Furthermore, there are two to four connecting wings, which are distributed on the outer wall of the connecting sleeve at 90 degrees intervals from each other; the connecting sleeve is a split structure, including a first arc piece and a second arc piece that are radially interlocked and detachably locked with each other, and the sleeve hole is formed between the first arc piece and the second arc piece after interlocking.

[0012] Furthermore, the horizontal support rod is a square tube horizontal support rod, and the two ends of the square tube horizontal support rod are respectively extruded to form a "concave" type closing; the "concave" type closing of the horizontal support rod is provided with the connecting through hole corresponding to the connecting through hole.

[0013] Furthermore, when the connecting wing is locked and fixed with the horizontal support rod, the connecting wing extends into and fits tightly against the bottom of the "concave" closure.

[0014] Furthermore, two flanges are formed on the upper and lower edges of the connecting wing, so that a "C"-shaped opening is formed on one side of the connecting wing; when the connecting wing is locked and fixed with the horizontal support rod, the "C"-shaped opening faces and extends into the "concave"-shaped closing, and the outer side walls of the two flanges elastically press against the upper and lower edges of the "concave"-shaped closing respectively; and the connecting piece passes through the connecting through hole and the connecting through hole in turn, so that the "concave"-shaped closing of the connecting wing and the horizontal support rod are tightly fitted and connected.

[0015] After adopting the above technical solution, the connecting sleeve is an independent structure and can be detachably connected to the support rod. Since the connecting sleeve is provided with a connecting wing and a connecting through hole is provided on the connecting wing, the connecting wing and the horizontal support rod can be locked and fixed by connecting parts such as screws, bolts and nuts. Therefore, the vertical support rod can be conveniently connected to the horizontal support rod by the connecting sleeve.

[0016] Thus, four support rods can be arranged, and the connecting sleeves mounted on the support rods have two connecting fins, so that a horizontal support rod can be conveniently installed between the two support rods, and the two ends of the horizontal support rod are respectively connected to the connecting fins of the support rods on both sides to form a frame structure. The frame structure can form a storage rack or even a bed frame structure, which is more convenient to install and disassemble than the existing storage rack structure, and makes the overall structure of the product more stable and reliable. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a three-dimensional diagram of the frame structure of Example 1 of the present utility model;

[0018] Figure 2 It is a partial structural schematic diagram of Example 1 of the utility model;

[0019] Figure 3 It is a cross-sectional view of the frame structure of Example 1 of the utility model;

[0020] Figure 4 This is a schematic diagram of a storage rack according to Embodiment 1 of the present utility model (I);

[0021] Figure 5 This is a schematic diagram of a storage rack according to Example 1 of the utility model (II);

[0022] Figure 6 It is a partial structural schematic diagram of Example 2 of the utility model;

[0023] Figure 7 It is a partial structural schematic diagram of Example 3 of the utility model;

[0024] Figure 8 This is a schematic diagram of the structure of Embodiment 4 of the present utility model;

[0025] Fig. 9 This is a schematic diagram of the structure of Example 5 of the present utility model;

[0026] Fig.10 This is a schematic diagram of the structure of Example 6 of the present utility model;

[0027] Fig.11 It is a partial structural stereogram of Example 7 of the utility model;

[0028] Fig.12 It is a partial structural exploded view of Example 7 of the utility model;

[0029] Fig.13 It is a partial structural stereogram of Example 8 of the utility model;

[0030] Fig.14 It is a partial structural exploded view of Example 8 of the utility model.

[0031] Explanation of reference numerals: connecting sleeve 1, sleeve hole 11, locking hole 12, first arc piece 13, second arc piece 14, circumferential edge 15, circumferential end face 151, edge arc surface 152, connecting locking hole 153, locking block 154, locking bottom hole 1541, locking groove 155, axial end face 16, locking through hole 161, semi-ring locking piece 17, locking piece connecting part 171, locking piece through hole 172, arc piece locking hole 18, fastener 19, connecting wing 2, locking part 21, connecting hole 211, connecting through hole 22, connecting screw 23, flange 24, sleeve assembly 4, half sleeve body 41, annular rib 42, support rod 5, annular groove 51, horizontal support rod 6, connecting through hole 61, step 62, positioning hole 621, "concave" type closing 63, support net 81, storage plate 82, connecting piece 9, frame structure 10, bolt a, nut b. DETAILED DESCRIPTION

[0032] In order to make the purpose, technical solution and advantages of the embodiments of the present application clearer, the technical solution in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are part of the embodiments of the present application, rather than all the embodiments. The components of the embodiments of the present application described and shown in the drawings here can be arranged and designed in various different configurations.

[0033] Example 1

[0034] like Figures 1 to 3 As shown, a rod fixing structure of the utility model comprises a connecting sleeve 1; the connecting sleeve 1 has a sleeve hole 11 through both ends, and the sleeve hole 11 is a tapered hole that is narrow at the top and wide at the bottom; the outer wall of the connecting sleeve 1 is provided with at least two connecting wings 2; each connecting wing 2 rotates around the center line of the sleeve hole 11 and is distributed on the outer periphery of the connecting sleeve 1 at intervals; a connecting through hole 22 is provided on the connecting wing 2; the connecting sleeve 1 is used to be sleeved on a vertically arranged support rod 5, and the connecting wing 2 is used to be locked and fixed with a horizontal support rod 6 arranged horizontally.

[0035] Hereby, the connecting sleeve 1 is an independent structure, which can be detachably connected to the support rod 5. Since the connecting sleeve 1 is provided with a connecting wing 2, and the connecting wing 2 is provided with a connecting through hole 22, the connecting wing 2 and the horizontal support rod 6 can be locked and fixed by connecting parts 9 such as screws, bolts a and nuts b. Therefore, the vertical support rod 5 can be conveniently connected to the horizontal support rod 6 by the connecting sleeve 1.

[0036] Thus, four support rods 5 can be arranged, and a connecting sleeve 1 sleeved on the support rod 5 has two connecting wings 2, so that a horizontal support rod 6 can be conveniently installed between two support rods 5, and the two ends of the horizontal support rod 6 are respectively connected to the connecting wings 2 of the support rods 5 on both sides to form a frame structure 10.

[0037] See also Figure 2 , Figure 4 and Figure 5 The middle part of the horizontal support rod 6 may have a "7"-shaped protrusion, so that a step 62 is formed on the installed horizontal support rod 6; thus, a support net 81 (such as Figure 4 )、Place plate 82 (such as Figure 5 ), so that the frame structure 10 constitutes a storage rack. In this embodiment, each step 62 may be provided with a positioning hole 621 to facilitate the placement of the support net 81; or a slatted frame (not shown) or a bed board (not shown) may be placed on the step 62 of each horizontal support rod 6, so that the frame structure 10 may constitute a bed frame structure. At the same time, the connecting wing 2 and the horizontal support rod 6 are locked and fixed by the connecting piece 9, so that the overall structure of the storage rack or bed frame structure is more stable and reliable.

[0038] like Figure 2 and Figure 3 As shown, the rod fixing structure also includes the support rod 5, the sleeve assembly 4, the horizontal support rod 6 and the connecting member 9.

[0039] The outer wall of the support rod 5 is provided with a plurality of annular slots 51. Thus, when the frame structure 10 forms a storage rack, a plurality of connecting sleeves 1 can be provided on each support rod 5, and each connecting sleeve 1 of the same height cooperates with the horizontal support rod 6 and the support net 81 to form a storage area.

[0040] Moreover, the structure of the tapered hole of the connecting sleeve 1 also facilitates rapid adjustment of the upper and lower spacings of the supporting nets 81 of the storage rack. For this part, reference may be made to the prior art.

[0041] The sleeve assembly 4 includes two half-sleeve bodies 41 that are movably snap-fitted; the inner wall of the sleeve assembly 4 is movably fitted to the outer wall of the support rod 5, and the inner wall of the sleeve assembly 4 protrudes with an annular rib 42 that is embedded in the annular groove 51; the outer wall of the sleeve assembly 4 is a conical wall that matches the sleeve hole 11.

[0042] The end of the horizontal support rod 6 is provided with a connecting through hole 61 corresponding to the connecting through hole 22 of the connecting wing 2; the number of the connecting members 9 corresponds to the number of the connecting through holes 22, and the connecting members 9 pass through the connecting through holes 22 and the connecting through holes 61 in sequence to lock and fix the horizontal support rod 6 and the connecting wing 2.

[0043] In this embodiment, there are two connection through-holes 22, one above the other, provided on the connection fin 2. Correspondingly, two connection perforations 61, distributed one above the other, are also provided at either end of the horizontal support rod 6. The connecting member 9 can be bolt a and nut b. After the bolt a passes through the connection through-hole 22 and the connection perforation 61, the nut b is then tightened to achieve detachable locking and fixing of the horizontal support rod 6 and the connection fin 2 on the connection sleeve 1.

[0044] In this embodiment, the horizontal cross-section of the socket hole 11 is circular. Since the socket hole 11 is a tapered hole, the outer wall of the connection sleeve 1 can be the lateral surface of a frustum of a cone. Of course, the horizontal cross-section of the socket hole 11 can also be elliptical, triangular or rectangular; and the outer wall of the connection sleeve 1 is not limited by the shape of the socket hole 11, that is, the connection sleeve 1 can be in the form of the lateral surface of a cylinder, the lateral surface of a frustum of a cone or the lateral surface of a prismoid, etc.

[0045] In this embodiment, the connection fin 2 is fixedly welded to the outer wall of the connection sleeve 1.

[0046] Embodiment 2

[0047] As Figure 6 shown, the structure of this embodiment is similar to that of the above embodiment. The main difference is that in this embodiment, the horizontal support rod 6 is taken as an example in the shape of "Ji", and it also has a step 62.

[0048] Embodiment 3

[0049] As Figure 7 shown, the structure of this embodiment is similar to that of the above embodiment. The main difference is that the connection fin 2 in this embodiment is detachably connected to the outer wall of the connection sleeve 1, and can be detachably locked and fixed by means of connection screws 23.

[0050] Specifically, taking four connection fins 2 as an example, and they are respectively perpendicular to the outer wall of the connection sleeve 1. A locking portion 21 that abuts against the outer wall of the connection sleeve 1 is connected to the inner side edge of the connection fin 2, and the locking portion 21 is locked and fixed to the outer wall of the connection sleeve 1. In this embodiment, two connection fins 2 share one locking portion 21, that is, one locking portion 21 is connected to one connection fin 2 on each of its two sides.

[0051] At least two connection holes 211, spaced apart vertically, can be provided on the locking portion 21; corresponding to the connection holes 211 on the outer wall of the connection sleeve 1, there are lock holes 12, and internal threads are provided in the lock holes 12.

[0052] The number of the connection screws 23 corresponds to the number of the connection holes 211, and they pass through the connection holes 211 and are locked in the lock holes 12 to lock and fix the connection fin 2 and the connection sleeve 1.

[0053] In this embodiment, there are four connecting fins 2, which are sequentially distributed on the outer wall of the connecting sleeve 1 at intervals of 90 degrees. In this way, the four directions of the support rod 5 can have connecting fins 2. Therefore, the connecting sleeve 1 and the sleeved support rod 5 can serve as the intermediate structure of the four front, back, left and right racks, which can save the support rod 5 and the connecting sleeve 1, and connect the four racks into one, thereby improving the stability of the rack itself and realizing the expansion and extension of the rack.

[0054] Example 3

[0055] like Figure 8 As shown, the structure of this embodiment is similar to the above embodiment, and the main difference is that the connecting sleeve 1 of this embodiment is a split structure, including a first arc piece 13 and a second arc piece 14 that are mutually buckled and removably locked in a radial direction, and the sleeve hole 11 is formed between the buckled first arc piece 13 and the second arc piece 14. When it is inconvenient for the connecting sleeve 1 to be sleeved on the support rod 5, the sleeve fitting of the connecting sleeve 1 and the support rod 5 is achieved by radially splitting and then buckling.

[0056] Specifically, a connecting lock hole 153 is respectively provided on the two circumferential edges 15 of the first arc piece 13 and the second arc piece 14, which passes through the circumferential end face 151 and the edge arc face 152 of the circumferential edge 15. When the first arc piece 13 and the second arc piece 14 are buckled and engaged with each other, the connecting lock holes 153 on the mutually docking circumferential edges 15 are aligned with each other, and then a locking screw 9 is respectively inserted into the pair of aligned connecting lock holes 153 to lock and fix them, so that the first arc piece 13 and the second arc piece 14 can be firmly locked into one.

[0057] Among them, the connecting lock hole 153 on the first arc piece 13 is provided with an internal thread, and the connecting lock hole 153 of the second arc piece 14 is a light hole and a side close to the edge arc surface 152 is a recessed groove for locking the screw head of the lock wire 9, and can make the first arc piece 13 and the second arc piece 14 more tightly combined.

[0058] The two connecting wings 2 of the connecting sleeve 1 of this embodiment can be arranged on the first arc piece 13 or the second arc piece 14 .

[0059] In this way, the connecting sleeve 1 is set to a detachable structure. When the frame structure 10 is used as a storage rack, when a new support net 81 needs to be added between the two existing support nets 81 (or storage plates 82) of the storage rack 10, there is no need to remove the upper support net 81. It is only necessary to split the connecting sleeve 1, fit the first arc piece 13 and the second arc piece 14 to the outer periphery of the two half sleeves 41 of the support rod 5, and then tighten the locking screw 9 to achieve the sleeve connection between the connecting sleeve 1 and the support rod 5, and then use the connecting wing pieces 2 to quickly connect the horizontal support rods 66 to achieve the installation of the new support net 81.

[0060] In this embodiment, one connecting locking hole 153 is provided in the middle of each circumferential edge 15 . Of course, a plurality of connecting locking holes 153 may be provided at intervals along the axial direction to enhance the locking effect of the first arc piece 13 and the second arc piece 14 .

[0061] Example 4

[0062] like Fig. 9 As shown, the structure of this embodiment is similar to that of the above embodiment, the main difference being that the connecting sleeve 1 can be a split structure.

[0063] Specifically, the connecting sleeve 1 includes a first arc piece 13 and a second arc piece 14 which can be interlocked with each other in the radial direction and can be detachably locked together. The sleeve hole 11 is formed between the interlocked first arc piece 13 and the second arc piece 14.

[0064] Two axially spaced locking blocks 154 are circumferentially extended and protruded on one of the circumferential edges 15 of the first arc piece 13 and the second arc piece 14, and two axially spaced locking grooves 155 are recessed on the other circumferential edge 15 of the first arc piece 13 and the second arc piece 14. At the same time, locking through holes 161 axially connected to the locking grooves 155 are respectively provided on the two axial end faces 16 of the first arc piece 13 and the second arc piece 14. When the first arc piece 13 and the second arc piece 14 are buckled and engaged, the locking blocks 154 of the first arc piece 13 are embedded in the locking grooves 155 of the second arc piece 14, and the locking blocks 154 of the second arc piece 14 are correspondingly embedded in the locking grooves 155 of the first arc piece 13. Moreover, each locking block 154 is respectively provided with a locking bottom hole 1541 corresponding to each locking through hole 161. Then, four locking screws 9 are passed through the locking through holes 161 and locked in the locking bottom holes 1541, so that the first arc piece 13 and the second arc piece 14 can be butt-locked and fixed.

[0065] In this way, the connecting sleeve 1 is set to a detachable structure. When the frame structure 10 is used as a storage rack, when a new support net 81 needs to be added between the two existing support nets 81 of the storage rack 10, there is no need to remove the upper support net 81. It is only necessary to split the connecting sleeve 1, fit the first arc piece 13 and the second arc piece 14 to the outer periphery of the two half sleeves 41 of the support rod 5, and then tighten the locking screw 9 to achieve the socket fitting of the connecting sleeve 1 and the support rod 5, and then use the connecting wing pieces 2 to quickly connect the horizontal support rods 66 to achieve the installation of the new support net 81.

[0066] In this embodiment, two locking blocks 154 or two locking grooves 155 are provided on each circumferential edge 15. Of course, only one locking groove 155 and locking block 154 may be provided, and only one corresponding locking through hole 161 may be provided, so that the first arc piece 13 and the second arc piece 14 can be locked and fixed.

[0067] Example 5

[0068] like Fig.10 As shown, the structure of this embodiment is basically the same as that of the above-mentioned embodiment, and the main difference is that the connecting sleeve 1 can be a split structure.

[0069] The connecting sleeve 1 includes a first arc piece 13 and a second arc piece 14 which can be interlocked with each other in the radial direction. After interlocking, two semi-ring locking pieces 17 are respectively locked on any end surface of the first arc piece 13 and the second arc piece 14, and the sleeve hole 11 is formed between the first arc piece 13 and the second arc piece 14.

[0070] The two circumferentially distributed locking piece connecting parts 171 on the semi-ring locking piece 17 are respectively fitted with the end surfaces of the first arc piece 13 and the second arc piece 14. At the same time, a locking piece through hole 172 is provided on the locking piece connecting part 171, and arc piece locking holes 1218 are respectively provided on the end surfaces of the first arc piece 13 and the second arc piece 14 corresponding to the locking piece through holes 172. Fasteners 19 such as screws can be passed through the locking piece through holes 172 and locked into the arc piece locking holes 1218, so that the semi-ring locking piece 17 is respectively locked and fixed to the first arc piece 13 and the second arc piece 14.

[0071] The first arc piece 13 and the second arc piece 14 can be locked at one end by two semi-ring locking pieces 17. Thus, a total of four semi-ring locking pieces 17 are provided on the upper and lower end surfaces of the first arc piece 13 and the second arc piece 14, so that the first arc piece 13 and the second arc piece 14 can be fixed by snapping together to form the connecting sleeve 1 structure.

[0072] The two connecting wings 2 of the connecting sleeve 1 of this embodiment can be arranged on the first arc piece 13 or the second arc piece 14 .

[0073] In this way, the connecting sleeve 1 is set to a detachable structure. When the frame structure 10 is used as a storage rack, when a new support net 81 needs to be added between the two existing support nets 81 of the storage rack 10, there is no need to remove the upper support net 81. It is only necessary to split the connecting sleeve 1, fit the first arc piece 13 and the second arc piece 14 to the outer periphery of the two half sleeves 41 of the support rod 5, and then lock the four half-ring locking pieces 17, so as to achieve the socket connection between the connecting sleeve 1 and the support rod 5, and then use the connecting wing pieces 2 to quickly connect the horizontal support rods 66 to achieve the installation of the new support net 81.

[0074] Example 6

[0075] like Fig.11 and Fig.12 As shown, the structure of this embodiment is basically the same as that of the above-mentioned embodiment, and the main difference is that the horizontal support rod 6 in this embodiment is a square tube horizontal support rod 6 to have stronger supporting force and structural strength.

[0076] Both ends of the square tube horizontal support rod 6 are squeezed to form a "concave" closure 63; the "concave" closure 63 of the horizontal support rod 6 is provided with the connecting through hole 61 corresponding to the connecting through hole 22.

[0077] Therefore, when the connecting wing 2 is locked and fixed to the horizontal support rod 6 , the connecting wing 2 extends into and fits closely to the bottom of the “concave” closure 63 .

[0078] In this embodiment, the connecting wing 2 is provided with two connecting through holes 22 spaced horizontally, and the corresponding connecting through holes 61 in the "concave" type closing opening 63 are also spaced horizontally. Inserting the connecting wing 2 into the "concave" type closing opening 63 can make the connection between the two closer while maintaining a beautiful appearance.

[0079] Example 6

[0080] like Fig.11 and Fig.12 As shown, the structure of this embodiment is basically the same as that of the above-mentioned embodiment, and the main difference is that the horizontal support rod 6 in this embodiment is a square tube horizontal support rod 6 to have stronger supporting force and structural strength.

[0081] In addition, both ends of the square tube horizontal support rod 6 are respectively extruded to form a “concave” shaped closing 63 ; the “concave” shaped closing 63 of the horizontal support rod 6 is provided with the connecting through hole 61 corresponding to the connecting through hole 22 .

[0082] Two flanges 24 are formed on the upper and lower edges of the connecting wing 2, so that a "C"-shaped opening is formed on one side of the connecting wing 2; when the connecting wing 2 is locked and fixed with the horizontal support rod 6, the "C"-shaped opening faces and extends into the "concave"-shaped closing 63, and the outer side walls of the two flanges 24 elastically press against the upper and lower edges of the "concave"-shaped closing 63 respectively; and the connecting piece 9 passes through the connecting through hole 22 and the connecting through hole 61 in sequence, so that the "concave"-shaped closing 63 of the connecting wing 2 and the horizontal support rod 6 are tightly fitted and connected.

[0083] Moreover, when the connecting member 9 adopts bolts a and nuts b, the tight fit between the connecting wing 2 and the horizontal support rod 6 can also provide a reaction force to the bolts a and the nuts b, preventing the nuts b and the bolts a from loosening and separating from each other, thereby improving the connection stability between the connecting wing 2 and the horizontal support rod 6.

[0084] The above is only a preferred embodiment of the utility model, and the protection scope of the utility model is not limited to the above embodiments. All technical solutions under the idea of ​​the utility model belong to the protection scope of the utility model. It should be pointed out that for ordinary technicians in this technical field, equivalent changes and modifications without departing from the principle of the utility model should still fall within the protection scope of the utility model.

[0085] In the description of the embodiments of the present application, it should be understood that the indicated orientation or position relationship is based on the orientation or position relationship shown in the accompanying drawings, or is the orientation or position relationship in which the product of the application is usually placed when in use, or is the orientation or position relationship commonly understood by technical personnel in this field. It is only for the convenience of describing the present application and simplifying the description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present application.

[0086] In addition, the terms "first", "second", "third", etc. are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" or "second" may explicitly or implicitly include one or more of the features. In the description of this application, the meaning of "multiple" and "several" is two or more, unless otherwise clearly and specifically defined.

[0087] In the description of the embodiments of the present application, it is also necessary to explain that, unless otherwise clearly specified and limited, the terms "set", "install", "connect", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection, an electrical connection, or can communicate with each other; it can be directly connected, or indirectly connected through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to specific circumstances.

[0088] In the present utility model, unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may include that the first and second features are in direct contact, or may include that the first and second features are not in direct contact but are in contact through another feature between them. Moreover, a first feature being "above", "above" and "above" a second feature includes that the first feature is directly above and obliquely above the second feature, or simply indicates that the first feature is higher in level than the second feature. A first feature being "below", "below" and "below" a second feature includes that the first feature is directly below and obliquely below the second feature, or simply indicates that the first feature is lower in level than the second feature.

[0089] The disclosure above provides many different embodiments or examples to realize the different structures of the present application. In order to simplify the disclosure of the present application, the parts and settings of specific examples are described above. Of course, they are only examples, and the purpose is not to limit the present application. In addition, the present application can repeat reference numerals and / or reference letters in different examples, and this repetition is for the purpose of simplification and clarity, which itself does not indicate the relationship between the various embodiments and / or settings discussed.

[0090] In addition, the present application provides examples of various specific processes and materials, but a person skilled in the art may be aware of the application of other processes and / or the use of other materials.

Claims

1. A rod fixing structure, characterized in that: It includes a connecting sleeve; the connecting sleeve has a sleeve hole that passes through both ends, and the sleeve hole is a tapered hole that is narrow at the top and wide at the bottom; the outer wall of the connecting sleeve is provided with at least two connecting wings; each connecting wing rotates around the center line of the sleeve hole and is distributed on the outer periphery of the connecting sleeve at intervals; a connecting through hole is provided on the connecting wing; the connecting sleeve is used to be sleeved on a vertically arranged support rod, and the connecting wing is used to be locked and fixed with a horizontal support rod arranged horizontally.

2. A rod fixing structure according to claim 1, characterized in that: It also includes the support rod, the sleeve assembly, the horizontal support rod and the connecting piece; a plurality of annular grooves are provided on the outer wall of the support rod; the sleeve assembly includes two half-sleeves that are movably snap-fitted; the inner wall of the sleeve assembly is movably fitted to the outer wall of the support rod, and the inner wall of the sleeve assembly protrudes with annular ribs that are embedded in the annular grooves; the outer wall of the sleeve assembly is a conical wall that matches the sleeve hole; the end of the horizontal support rod is provided with a connecting through hole corresponding to the connecting through hole of the connecting wing; the number of the connecting pieces corresponds to the number of the connecting through holes, and the connecting pieces pass through the connecting through holes and the connecting through holes in sequence to lock and fix the horizontal support rod and the connecting wing.

3. A rod fixing structure according to claim 2, characterized in that: The connecting pieces are bolts and nuts.

4. The rod fixing structure according to claim 1, characterized in that: The horizontal cross-section of the sleeve hole is circular, elliptical, triangular or rectangular; the outer wall of the connecting sleeve is a cylindrical side, a truncated cone side or a prism side; the connecting wing is welded and fixed to the outer wall of the connecting sleeve.

5. The rod fixing structure according to claim 1, characterized in that: The connecting wing is perpendicular to the outer wall of the connecting sleeve, the inner side of the connecting wing is connected with a locking portion that is close to the outer wall of the connecting sleeve, and the locking portion is locked and fixed to the outer wall of the connecting sleeve.

6. A rod fixing structure according to claim 5, characterized in that: It also includes connecting screws; the locking part is provided with at least two connecting holes spaced apart up and down; the outer wall of the connecting sleeve is provided with locking holes corresponding to the connecting holes, and the locking holes are provided with internal threads; the number of connecting screws corresponds to the number of connecting holes, and the connecting screws pass through the connecting holes and are locked in the locking holes to lock and fix the connecting wing and the connecting sleeve.

7. A rod fixing structure according to any one of claims 1 to 6, characterized in that: There are two to four connecting wings, which are distributed on the outer wall of the connecting sleeve at 90 degrees intervals from each other; the connecting sleeve is a split structure, including a first arc piece and a second arc piece that are radially interlocked and detachably locked to each other, and the sleeve hole is formed between the first arc piece and the second arc piece after interlocking.

8. The rod fixing structure according to claim 2, characterized in that: The horizontal support rod is a square tube horizontal support rod, and the two ends of the square tube horizontal support rod are respectively extruded to form a "concave" type closing; the "concave" type closing of the horizontal support rod is provided with the connecting through hole corresponding to the connecting through hole.

9. The rod fixing structure according to claim 8, characterized in that: When the connecting wing is locked and fixed with the horizontal support rod, the connecting wing extends into and is closely attached to the bottom of the "concave" closure.

10. The rod fixing structure according to claim 8, characterized in that: Two flanges are formed on the upper and lower edges of the connecting wing, so that a "C"-shaped opening is formed on one side of the connecting wing; when the connecting wing is locked and fixed with the horizontal support rod, the "C"-shaped opening faces and extends into the "concave"-shaped closing, and the outer side walls of the two flanges elastically abut against the upper and lower edges of the "concave"-shaped closing respectively; and the connecting piece passes through the connecting through hole and the connecting through hole in sequence, so that the "concave"-shaped closing of the connecting wing and the horizontal support rod are tightly fitted and connected.

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