A store pylon hanger pulley and pulley damper assembly

Abstract

The present application provides a kind of hanger hoist pulley, comprising: first hanger is equipped with first pulley;Second hanger is equipped with second pulley;The first hanger is detachably connected with the second hanger.The hanger hoist pulley of the present application adopts combined structure, so that the disassembly step of the hanger hoist pulley on the slide rail is simplified, which avoids the maintenance opening structure opened in the traditional process on the slide rail, ensures the structural strength of the slide rail, and has high safety.The present application also provides a kind of pulley damping assembly, comprising buffer assembly and the above-mentioned hanger hoist pulley, wherein: the first hanger and / or the second hanger is detachably mounted to the buffer assembly.The pulley damping assembly is equipped with detachable hanger hoist pulley and detachable tail wheel assembly, so that the pulley damping assembly is equipped with slide rail conveniently, and has strong practicability.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of hardware fittings, in particular to a hanging bracket lifting pulley and a pulley damping assembly. BACKGROUND

[0002] The lifting pulley is an important component of a sliding door, which is used to lift the door leaf through the sliding rail fixed on the door frame, so as to facilitate the movement of the door leaf. Figure 13 As shown in the axial sectional structure diagram of the sliding rail 4. The sliding rail 4 is a profile, and the lower end face is provided with a sliding groove 41, and the two sides of the sliding groove 41 are provided with rails 42. In use, the lifting pulley is lapped on the rail 42 and connected with it in rolling.

[0003] In order to improve the stability of the structure, the lifting pulley is usually symmetrically arranged on both sides of the sliding groove, which makes the overall structure width of the lifting pulley component greater than the width of the sliding groove. During use, it is difficult to overhaul or replace the lifting pulley component. Therefore, the existing technology usually solves this problem by opening an access hole on the sliding rail. The access hole is provided to facilitate the disassembly and assembly of the lifting pulley component. However, as the types of the profile of the sliding rail are various, the opening of the access hole requires high machining precision, which increases the processing cost. On the other hand, it will reduce the structural strength of the sliding rail and affect the service life of the sliding rail. At the same time, the installation steps are complicated, which affects the work efficiency. SUMMARY

[0004] In view of the deficiencies of the prior art, the purpose of the present application is to provide a hanging bracket lifting pulley, which is a combined split structure, easy to disassemble and assemble, and convenient to assemble with the sliding rail.

[0005] The second purpose of the present application is to provide a pulley damping assembly, which is stable in structure and can be quickly assembled with the sliding rail.

[0006] The embodiments of the present application are realized by the following technical solutions:

[0007] A hanging bracket lifting pulley, comprising: a first hanging bracket provided with a first pulley; a second hanging bracket provided with a second pulley; the first hanging bracket and the second hanging bracket are detachably connected.

[0008] According to a preferred embodiment, the first hanging bracket is provided with a guide groove, and the second hanging bracket is provided with a guide block matched with the guide groove; or the second hanging bracket is provided with a guide groove, and the first hanging bracket is provided with a guide block matched with the guide groove; the guide block is slidably embedded in the guide groove; the guide block is configured to be able to only slide out of the guide groove in the extension direction of the guide groove.

[0009] According to a preferred embodiment, the guide groove is a trapezoidal groove.

[0010] According to a preferred embodiment, the first hanger is provided with an extension plate; the extension plate is provided with a second lifting hole.

[0011] According to a preferred embodiment, the extension plate is provided with a first hole; the second hanger is provided with a second hole; the first hole and the second hole are coaxially distributed; when the first hanger and the second hanger are connected, the first hole and the second hole are coaxial.

[0012] According to a preferred embodiment, the first hanger or the second hanger is provided with a mounting lug.

[0013] According to a preferred embodiment, the inner side of the first hanger is provided with a first half hole, and the inner side of the second hanger is provided with a second half hole; when the first hanger and the second hanger are connected, the first half hole and the second half hole can form a first lifting hole.

[0014] According to a preferred embodiment, the outer side of the first hanger is provided with a first reinforcing block, and the first reinforcing block is distributed near the first half hole; the outer side of the second hanger is provided with a second reinforcing block, and the second reinforcing block is distributed near the second half hole.

[0015] According to a preferred embodiment, the first hanger and the second hanger are each provided with a brush assembly; the brush assembly on the first hanger is distributed corresponding to the first pulley; the brush assembly on the second hanger is distributed corresponding to the second pulley.

[0016] According to a preferred embodiment, the brush assembly includes a mounting plate, and the mounting plate is provided with bristles; the first hanger and the second hanger are respectively and detachably connected with the corresponding mounting plate.

[0017] According to a preferred embodiment, the outer side of each of the first hanger and the second hanger is provided with a mounting blind hole, and the side wall of the mounting blind hole is provided with an extension slot; the mounting plate is embedded in the mounting blind hole, and the bristles extend out of the mounting blind hole through the extension slot; the opening end of the mounting blind hole is clamped with a blocking block.

[0018] According to a preferred embodiment, the first hanger includes a hanging part, and the outer side of the hanging part is provided with a first reinforcing plate; the second hanger includes at least a second reinforcing plate, and the second reinforcing plate is detachably connected to the hanging part and is arranged opposite to the first reinforcing plate; the first pulley is rotatably installed to the first reinforcing plate, and the second pulley is rotatably installed to the second reinforcing plate.

[0019] According to a preferred embodiment, a supporting plate is further included, which is connected to the first reinforcing plate or the second reinforcing plate through a connecting plate; and the supporting plate is abutted to the lower side of the hanging part.

[0020] According to a preferred embodiment, a first auxiliary hole is arranged on the second hanger.

[0021] A pulley damping assembly includes a buffering assembly and the hanger pulley as described above, wherein the first hanger and / or the second hanger is detachably mounted to the buffering assembly.

[0022] According to a preferred embodiment, the other end of the buffering assembly is provided with a tail pulley assembly; the tail pulley assembly at least includes a tail connecting piece connected to the buffering assembly, and a third pulley is arranged on the tail connecting piece.

[0023] According to a preferred embodiment, the buffering assembly and the tail pulley assembly are detachably connected.

[0024] According to a preferred embodiment, the tail pulley assembly further includes a tail pulley hanger, which is detachably connected to the tail connecting piece; and a fourth pulley is arranged on the tail pulley hanger.

[0025] The technical scheme of the embodiment of the present application has at least the following advantages and beneficial effects:

[0026] The present application has reasonable design and simple structure, and adopts a combined structure, so that the dismounting steps of the hanger pulley on the slide rail are simplified, and the dismounting efficiency of the hanger pulley is effectively improved; meanwhile, the maintenance opening structure opened on the slide rail in the traditional process is avoided, the structural strength of the slide rail is ensured, the safety is high, and the practicality is strong. BRIEF DESCRIPTION OF DRAWINGS

[0027] In order to more clearly illustrate the technical scheme of the embodiment of the present application, the following will briefly introduce the drawings needed to be used in the embodiment, and it should be understood that the following drawings only show some embodiments of the present application, and therefore should not be regarded as a limitation on the scope, and for those skilled in the art, other related drawings can also be obtained without creative labor on the basis of these drawings.

[0028] Figure 1 The structural schematic diagram of the pulley damping assembly provided for the embodiment 1 of the present application is shown in the figure;

[0029] Figure 2 The first three-dimensional structural schematic diagram of the hanger pulley provided for the embodiment 1 of the present application is shown in the figure;

[0030] Figure 3 The second three-dimensional structural schematic diagram of the hanger pulley provided for the embodiment 1 of the present application is shown in the figure;

[0031] Figure 4 The left view structural schematic diagram of the hanger lifting pulley provided for the embodiment 1 of the present application;

[0032] Figure 5 The exploded structural schematic diagram of the hanger lifting pulley provided for the embodiment 1 of the present application;

[0033] Figure 6 The Figure 5 The partial enlarged schematic diagram of the structure at A;

[0034] Figure 7 The three-dimensional structural schematic diagram of the second hanger provided for the embodiment 1 of the present application;

[0035] Figure 8 The three-dimensional structural schematic diagram of the first hanger provided for the embodiment 1 of the present application;

[0036] Figure 9 The three-dimensional structural schematic diagram of the tail wheel assembly provided for the embodiment 1 of the present application;

[0037] Figure 10 The right view structural schematic diagram of the tail wheel assembly provided for the embodiment 1 of the present application;

[0038] Figure 11 The three-dimensional structural schematic diagram of the tail wheel hanger provided for the embodiment 1 of the present application;

[0039] Figure 12 The three-dimensional structural schematic diagram of the tail connecting piece provided for the embodiment 1 of the present application;

[0040] Figure 13 The axial sectional schematic diagram of the slide rail;

[0041] Figure 14 The assembly schematic diagram of the pulley damping assembly and the slide rail provided for the embodiment 1 of the present application;

[0042] Figure 15 The assembly schematic diagram of the hanger lifting pulley and the slide rail provided for the embodiment 1 of the present application;

[0043] Figure 16 The three-dimensional structural schematic diagram of the hanger lifting pulley provided for the embodiment 2 of the present application;

[0044] Figure 17 The three-dimensional structural schematic diagram of the second hanger provided for the embodiment 2 of the present application;

[0045] Figure 18 The three-dimensional structural schematic diagram of the first hanger provided for the embodiment 2 of the present application;

[0046] Figure 19 The exploded structural schematic diagram of the hanger lifting pulley provided for the embodiment 2 of the present application;

[0047] Icon: 1 - shell, 11 - connector, 12 - fixing bolt, 2 - hanger suspension pulley, 21 - first hanger, 2101 - hanging part, 2102 - first reinforcing plate, 2103 - third screw hole, 2104 - third lifting screw hole, 211 - mounting ear, 2111 - through hole, 212 - first pulley, 213 - first reinforcing block, 214 - extension plate, 2141 - second lifting screw hole, 215 - guide block, 216 - first screw hole, 22 - second hanger, 2201 - second reinforcing plate, 22011 - assembly groove, 2202 - supporting plate, 22021 - positioning hole, 22022 - connecting plate, 22023 - avoiding hole, 221 - second reinforcing block, 222 - second pulley, 223 - second screw hole, 224 - first auxiliary hole, 225 - guide groove, 23 - first lifting screw hole, 231 - second half screw hole, 232 - first half screw hole, 24 - plugging block, 25 - mounting plate, 251 - brush, 26 - first locking screw, 27 - mounting blind hole, 28 - extension groove, 3 - tail wheel assembly, 31 - tail connecting piece, 311 - main body, 3111 - fixing hole, 3112 - clamping blind hole, 312 - external block, 3121 - clamping groove, 313 - internal block, 3131 - internal pin hole, 314 - third pulley, 3141 - wheel shaft, 3142 - rolling groove a, 32 - tail wheel hanger, 321 - second auxiliary hole, 322 - fourth pulley, 3221 - rolling groove b, 323 - clamping block, 3231 - accommodating groove, 324 - extension protrusion, 3241 - positioning screw hole, 33 - second locking screw, 4 - slide rail, 41 - sliding groove, 42 - track, 5 - hexagonal wrench, 6 - lifting piece. DETAILED DESCRIPTION

[0048] In order to better understand and implement, the technical solutions in the embodiments of the present application will be clearly and completely described below in combination with the drawings in the embodiments of the present application.

[0049] In the description of the present application, it should be noted that the orientations or positional relationships indicated by the terms "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer" and the like are based on the orientations or positional relationships shown in the drawings, and are only for the purpose of facilitating the description of the present application and simplifying the description, and therefore cannot be understood as limiting the devices or elements indicated to have a specific orientation, to be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present application.

[0050] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which the present application belongs. The terms used in the specification of the present application herein are only for the purpose of describing specific embodiments and are not intended to limit the present application.

[0051] Embodiment 1

[0052] Please refer to Figures 1 to 15 A hanger lifting pulley is installed in the slide rail 4 through the sliding groove 41, which comprises: a first hanger 21 provided with a first pulley 212; a second hanger 22 provided with a second pulley 222; and the first hanger 21 and the second hanger 22 are detachably connected. The structure of the first hanger 21 after assembling the first pulley 212 and the structure of the second hanger 22 after assembling the second pulley 222 can be installed in the slide rail 4 through the sliding groove 41, so that the first pulley 212 and the second pulley 222 are installed in cooperation with the track 42, as shown in Figure 15 When in use, first, the first hanger 21 is installed in the slide rail 4 through the sliding groove 41 and cooperates with one side of the track 42, and then the second hanger 22 is installed in the slide rail 4 through the sliding groove 41 and cooperates with the other side of the track 42. Subsequently, the first hanger 21 and the second hanger 22 are moved towards each other in the slide rail 4 until their positions on the axial direction of the slide rail 4 coincide, and then the first hanger 21 and the second hanger 22 are fixedly connected in the slide rail 4 by the fixing member. It should be noted that the order of installing the first hanger 21 and the second hanger 22 is not required.

[0053] Correspondingly, when the hanger lifting pulley 2 needs to be disassembled from the slide rail 4, first, the fixing member is removed, and then the first hanger 21 and the second hanger 22 are moved away from each other in the slide rail 4 until they are separated, and then the first hanger 21 and the second hanger 22 can be disassembled from the sliding groove 41 respectively.

[0054] The hanger lifting pulley 2 has a combined structure, which simplifies the disassembly and assembly steps of the hanger lifting pulley 2 on the slide rail 4, effectively improves the disassembly and assembly efficiency of the hanger lifting pulley 2, avoids the maintenance opening structure on the slide rail 4 in the traditional process, ensures the structural strength of the slide rail 4, has high safety and strong practicability.

[0055] In this embodiment, as shown in Figure 7 and Figure 15 The second hanger 22 is provided with a first auxiliary hole 224, which can be exposed through the sliding groove 41. The first auxiliary hole 224 is a hexagonal hole. When disassembling the second hanger 22, the hexagonal wrench 5 is inserted into the first auxiliary hole 224 through the sliding groove 41 to facilitate applying force to the second hanger 22.

[0056] Furthermore, the first bracket 21 is provided with a guide groove 225, and the second bracket 22 is provided with a guide block 215 adapted to the guide groove 225; or the second bracket 22 is provided with a guide groove 225, and the first bracket 21 is provided with a guide block 215 adapted to the guide groove 225; the guide block 215 is slidably embedded in the guide groove 225; the guide block 215 is configured to disengage from the guide groove 225 only by sliding along the extension direction of the guide groove 225. Figure 4 , Figure 5 , Figure 7 and Figure 8 As shown, in this embodiment, the guide groove 225 is disposed on the inner side of the second hanger 22, and the guide block 215 is disposed on the inner side of the first hanger 21. Preferably, the extending direction of the guide groove 225 is parallel to the extending direction of the second hanger 22. When the second hanger 22 is installed in the slide rail 4, the extending direction of the guide groove 225 is parallel to the extending direction of the track 42. Here, the guide block 215 cooperates with the guide groove 225 to connect the first hanger 21 and the second hanger 22, making them inseparable in any direction other than the extending direction of the guide groove 225. The structure is stable, ensuring the strength requirements of the hanger pulley 2 and providing high safety. In use, as... Figure 15 As shown, when the first hanger 21 and the second hanger 22 approach and connect with each other, the guide block 215 can be inserted into the guide groove 225 from the end of the guide groove 225 to complete the combination assembly of the first hanger 21 and the second hanger 22. The operation is simple and it is convenient for workers to quickly assemble the first hanger 21 and the second hanger 22 through the narrow space of the slide groove 41 in the slide rail 4. It is highly operable, reduces the installation difficulty of the hanger pulley 2, and helps to improve work efficiency.

[0057] To further improve the strength and stability of the connection between the first bracket 21 and the second bracket 22, there are two guide grooves 225, and correspondingly, there are two guide blocks 215. In other embodiments, the number of guide grooves 225 and guide blocks 215 can be specifically set according to needs and the dimensions of the first bracket 21 and the second bracket 22, and no specific limitation is made here.

[0058] In this embodiment, the guide groove 225 is a trapezoidal groove. Specifically, as shown... Figure 4 As shown, the narrow end of the slot 3121 penetrates the inner side of the second bracket 22, so that it can engage and limit the guide block 215. In other embodiments, the cross-section of the guide groove 225 can be a circular arc segment or other shapes; the shape of the guide groove 225 is such that it can cooperate with the guide block 215 so that the guide block 215 can only slide out of the guide groove 225 by sliding along the extension direction of the guide groove 225.

[0059] In the embodiment, the first hanger 21 is provided with first screw holes 216, and the second hanger 22 is provided with second screw holes 223; the first screw holes 216 and the second screw holes 223 are correspondingly distributed; when the first hanger 21 and the second hanger 22 are connected, the first screw holes 216 and the second screw holes 223 can be coaxial. In the embodiment, as shown in Figure 5 , the fixing member is a first locking screw 26. In use, when the guide block 215 is embedded in the guide groove 225, the first hanger 21 and the second hanger 22 are continuously pushed to make the first screw holes 216 and the second screw holes 223 coaxial, at this time, the first locking screw 26 is sequentially embedded in the first screw holes 216 and the second screw holes 223, so as to fix the relative position of the first hanger 21 and the second hanger 22. Preferably, the number of the first screw holes 216 is two, and correspondingly, the number of the second screw holes 223 is two, so that the assembled first hanger 21 and the second hanger 22 have good stability. In other embodiments, the number of the first screw holes 216 and the second screw holes 223 can be specifically set according to needs, which is not specifically limited here.

[0060] It should be noted that the first screw hole 216 here can be a light hole, and the inner diameter thereof is slightly larger than the outer diameter of the first locking screw 26.

[0061] In the embodiment, in order to facilitate the operation of the staff, the first screw holes 216 are arranged on the lower side of the first hanger 21, and the second screw holes 223 are arranged on the lower side of the second hanger 22, wherein: the first screw holes 216 can be exposed through the sliding groove 41. Further, in order to facilitate the assembly of the first hanger 21 and the second hanger 22, as shown in Figure 3 , Figure 4 and Figure 8 , the first hanger 21 is provided with an extension plate 214; the width of the extension plate 214 is less than the width of the sliding groove 41; the first screw holes 216 are arranged through the extension plate 214; and the extension plate 214 is provided with a second lifting screw hole 2141. Preferably, the extension plate 214 is integrally formed with the first hanger 21. In the embodiment, the extension plate 214 is arranged on the lower side of the first hanger 21, so as to facilitate the installation of the first hanger 21 into the sliding rail 4. When the first hanger 21 and the second hanger 22 are connected, the second hanger 22 is located on the upper side of the extension plate 214.

[0062] As shown in Figure 8 and Figure 15 , the lifting member 6 is threadedly connected to the second lifting screw hole 2141 through a screw rod. The second lifting screw hole 2141 here can be exposed through the sliding groove 41. The first hanger 21 and the second hanger 22 are conveniently disassembled through the cooperation of the lifting member 6 and the hexagonal wrench 5.

[0063] In order to facilitate the assembly of the hanger suspension pulley 2 and other parts, the first hanger 21 or the second hanger 22 is provided with a mounting lug 211. In the embodiment, the mounting lug 211 is provided on the first hanger 21 and is integrally formed with the first hanger 21.

[0064] As shown in Figure 2 , Figure 3 and Figure 5 , the inner side of the first hanger 21 is provided with a first half screw hole 232, and the inner side of the second hanger 22 is provided with a second half screw hole 231; when the first hanger 21 is connected with the second hanger 22, the first half screw hole 232 can be combined with the second half screw hole 231 to form a first hoisting screw hole 23. In the embodiment, the first hoisting screw hole 23 is distributed on the upper side of the second hoisting screw hole 2141, which is used to be threadedly connected with the screw rod installed on the hoisting member 6 on the basis of the second hoisting screw hole 2141, and has strong firmness. In other embodiments, the first hoisting screw hole 23 can be a light hole, the inner diameter of which is slightly larger than the inner diameter of the second hoisting screw hole 2141, which is used to avoid the screw rod installed on the hoisting member 6.

[0065] Further, in order to increase the structural strength of the first hanger 21 and the second hanger 22, the outer side of the first hanger 21 is provided with a first reinforcing block 213 in an integrally formed manner, and the first reinforcing block 213 is distributed close to the first half screw hole 232; the outer side of the second hanger 22 is provided with a second reinforcing block 221 in an integrally formed manner, and the second reinforcing block 221 is distributed close to the second half screw hole 231.

[0066] As shown in Figure 3 and Figure 5 , the first hanger 21 and the second hanger 22 are each provided with a brush assembly; the brush assembly on the first hanger 21 is distributed corresponding to the first pulley 212, that is, the brush assembly and the first pulley 212 are distributed on the same side in the slide rail 4, and both abut against the track 42 on the same side; the brush assembly on the second hanger 22 is distributed corresponding to the second pulley 222, that is, the brush assembly and the second pulley 222 are distributed on the same side in the slide rail 4, and both abut against the track 42 on the same side.

[0067] Further, the brush assembly comprises a mounting plate 25, and the mounting plate 25 is provided with bristles 251; the first hanger 21 and the second hanger 22 are respectively and detachably connected with the corresponding mounting plate 25. Further, as shown in Figure 6 , the outer side of each of the first hanger 21 and the second hanger 22 is provided with a mounting blind hole 27, and the side wall of the mounting blind hole 27 is provided with an extension slot 28; the mounting plate 25 is embedded in the mounting blind hole 27, and the bristles 251 extend out of the mounting blind hole 27 through the extension slot 28; the opening end of the mounting blind hole 27 is clamped with a plugging block 24.

[0068] The brush assembly is convenient to disassemble and maintain, and the bristles 251 always abut the surface of the track 42 corresponding to the first pulley 212 and the second pulley 222 during use, so that the track 42 surface can be cleaned in real time during the movement of the hanger pulley 2, thereby ensuring the smoothness of the cooperation between the pulley and the track 42.

[0069] The embodiment also provides a pulley damping assembly, comprising the buffer assembly and the hanger pulley 2. Figure 1 and Figure 14 As shown in the drawings, the other end of the buffer assembly is detachably provided with a tail pulley assembly 3; the tail pulley assembly 3 comprises a tail connecting piece 31 connected to the buffer assembly, and a tail pulley hanger 32 detachably arranged on the tail connecting piece 31; the tail connecting piece 31 is provided with a third pulley 314, and the tail pulley hanger 32 is provided with a fourth pulley 322. In the embodiment, the buffer assembly at least comprises a shell 1, and one end of the shell 1 is detachably provided with the tail connecting piece 31. Further, the other end of the shell 1 is provided with a connecting head 11, the connecting head 11 is provided with a groove, the mounting lug 211 is embedded in the groove, the mounting lug 211 is provided with a through hole 2111, and the fixing bolt 12 penetrates through the through hole 2111 to fix the mounting lug 211 on the connecting head 11, so as to realize detachable connection between the hanger pulley 2 and the shell 1, i.e. the buffer assembly. In the embodiment, the tail pulley assembly 3 is composed of the tail connecting piece 31 and the tail pulley hanger 32, so that in use, the tail connecting piece 31 is first fixedly installed on the shell 1, then the tail connecting piece 31 is loaded into the slide rail 4 from the slide slot 41 with the shell 1 as a support, so that the third pulley 314 is connected with the track 42. Then the tail pulley hanger 32 is loaded into the slide rail 4 from the slide slot 41, and the tail pulley hanger 32 is driven to move along the track 42 to a position close to the tail connecting piece 31, until the tail pulley hanger 32 can be connected with the tail connecting piece 31, and finally the two are fixedly connected. Correspondingly, in disassembly, the fixed parts between the two are first removed, then the two are separated in the extension direction of the track 42, and then they are sequentially disassembled through the slide slot 41.

[0070] The hanger pulley 2 cooperates with the tail pulley assembly 3, so that the pulley damping assembly can be installed and disassembled with the slide rail 4 in the complete state of the slide rail 4, thereby ensuring the structural strength of the slide rail 4 and being more safe in use.

[0071] Further, as shown in the drawings, Figure 9 , Figure 10 , Figure 11 and Figure 12As shown in the figure, the tail connecting piece 31 comprises a main body 311; the main body 311 is provided with a clamping blind hole 3112 and a fixing hole 3111 which are in communication with each other, and the tail wheel hanger 32 is provided with an extension protrusion 324 which is adapted to the clamping blind hole 3112, and the extension protrusion 324 is provided with a positioning screw hole 3241; when the extension protrusion 324 is embedded in the clamping blind hole 3112, the fixing hole 3111 can be coaxial with the positioning screw hole 3241. In this embodiment, when the extension protrusion 324 is embedded in the clamping blind hole 3112 and the fixing hole 3111 is coaxial with the positioning screw hole 3241, as shown in the figure, Figure 14 the tail connecting piece 31 and the tail wheel hanger 32 are detachably connected by the second locking screw 33 in the mode of sequentially penetrating the fixing hole 3111 and the positioning screw hole 3241. The fixing hole 3111 can be exposed through the sliding groove 41, which is convenient for the operator to operate.

[0072] In this embodiment, the tail wheel hanger 32 is provided with a second auxiliary hole 321, which is a hexagonal hole, so that the operator can use a hexagonal wrench 5 to apply an external force to the tail wheel hanger 32 through the sliding groove 41, which is convenient for disassembling and assembling the tail wheel hanger 32 and the tail connecting piece 31 in the narrow space in the sliding rail 4.

[0073] As shown in the figure, Figure 12 , one end of the main body 311 is provided with an external block 312, and the third pulley 314 is rotatably installed on the external block 312. The other end of the main body 311 is provided with an internal block 313 which extends into the shell 1, wherein: the internal block 313 is provided with at least two internal pin holes 3131; the side wall of the shell 1 is provided with at least two external pin holes corresponding to the at least two internal pin holes 3131. In this embodiment, the number of internal pin holes 3131 and external pin holes is two.

[0074] As shown in the figure, Figure 10 and Figure 12 , the tail wheel hanger 32 is provided with a clamping block 323, and the tail connecting piece 31 is provided with a clamping groove 3121 which is adapted to the clamping block 323; the clamping block 323 is slidingly embedded in the clamping groove 3121; the clamping block 323 is configured to only slide out of the clamping groove 3121 in the extension direction of the clamping groove 3121.

[0075] In the embodiment, the clamping groove 3121 is arranged on the inner side surface of the outer connecting block 312, and the clamping block 323 is arranged on the inner side surface of the tail wheel hanger 32. Preferably, the extending direction of the clamping groove 3121 is parallel to the extending direction of the outer connecting block 312, and when the outer connecting block 312 is installed in the slide rail 4, the extending direction of the clamping groove 3121 is parallel to the extending direction of the rail 42. The clamping block 323 cooperates with the clamping groove 3121 to realize the connection between the tail wheel hanger 32 and the tail connecting piece 31, so that the two cannot be separated in any direction except the extending direction of the clamping groove 3121, the structure is stable, the strength requirement of the tail wheel assembly 3 can be guaranteed, and the safety is high. In use, as shown in Figure 14 , when the tail wheel hanger 32 and the tail connecting piece 31 are close to each other and connected, the clamping block 323 is embedded in the clamping groove 3121 from the end of the clamping groove 3121, and the combined assembly of the tail wheel hanger 32 and the tail connecting piece 31 is completed, which is simple in operation and facilitates the workers to quickly assemble the tail wheel hanger 32 and the tail connecting piece 31 in the narrow space of the slide rail 4 through the sliding groove 41, and the operability is high, which reduces the installation difficulty of the tail wheel assembly 3 and is conducive to improving the work efficiency.

[0076] In the embodiment, the clamping groove 3121 is a trapezoidal groove. As shown in Figure 10 and Figure 12 , the narrow end of the clamping groove 3121 penetrates the inner side surface of the outer connecting block 312, so that the clamping groove 3121 can clamp and limit the clamping block 323. In other embodiments, the cross section of the clamping groove 3121 can also be other shapes; the shape of the clamping groove 3121 here is subject to the condition that it can cooperate with the clamping block 323 to realize that the clamping block 323 can only slide away from the clamping groove 3121 in the extending direction of the clamping groove 3121.

[0077] Further, the clamping block 323 is arranged on the inner side surface of the tail wheel hanger 32, and the clamping block 323 is provided with a giving-up groove 3231, the extending direction of the giving-up groove 3231 is parallel to the extending direction of the clamping groove 3121; the wheel shaft 3141 of the third pulley 314 extends into the clamping groove 3121; when the clamping block 323 is embedded in the clamping groove 3121, the wheel shaft 3141 extends into the giving-up groove 3231. In the embodiment, the giving-up groove 3231 is used to avoid the wheel shaft 3141 on the one hand, to prevent the clamping groove 3121 and the clamping block 323 from interfering with each other; on the other hand, the wheel shaft 3141 cooperates with the giving-up groove 3231 to make the connection between the tail wheel hanger 32 and the tail wheel connecting piece more firm, and at the same time can play a certain guiding role in the cooperation of the clamping groove 3121 and the clamping block 323.

[0078] Preferably, the clamping block 323 is integrally formed with the tail wheel hanger 32. Preferably, the outer connecting block 312, the main body 311 and the inner connecting block 313 are sequentially distributed and integrally formed.

[0079] Further, the third pulley 314 is provided with a rolling groove a 3142 around the circumferential side thereof, and the fourth pulley 322 is provided with a rolling groove b 3221 around the circumferential side thereof; the width of the rolling groove a 3142 is greater than the width of the rolling groove b 3221, or the width of the rolling groove b 3221 is greater than the width of the rolling groove a 3142. As shown in Figure 10 In this embodiment, the width of the rolling groove b 3221 is greater than the width of the rolling groove a 3142. As shown in Figure 13 The inconsistent widths of the rolling groove b 3221 and the rolling groove a 3142 can enable the tail wheel assembly 3 to have a floating gap in the width direction of the slide rail 4, thereby avoiding the situation that the pulley damping assembly is stuck in the slide rail 4.

[0080] Embodiment 2

[0081] This embodiment is a further improvement of Embodiment 1, and repeated contents will not be described here.

[0082] Please refer to Figures 16 to 19 The first hanger 21 includes a hanging part 2101, and the outer side surface of the hanging part 2101 is provided with a first reinforcing plate 2102; the second hanger 22 at least includes a second reinforcing plate 2201, which is detachably connected to the hanging part 2101 and disposed opposite to the first reinforcing plate 2102; the first pulley 212 is rotatably installed to the first reinforcing plate 2102, and the second pulley 222 is rotatably installed to the second reinforcing plate 2201. In this embodiment, the first hanger 21 and the second hanger 22 are connected, that is, the first reinforcing plate 2102 and the second reinforcing plate 2201 are arranged on both sides of the hanging part 2101, so that the overall strength of the hanger and pulley 2 composed of the first hanger 21 and the second hanger 22 is higher, and the bearing capacity is stronger.

[0083] In this embodiment, the hanging part 2101 is a die casting, and the first reinforcing plate 2102 and the second reinforcing plate 2201 are both sheet metal parts. In use, the first reinforcing plate 2102 and the second reinforcing plate 2201 are both detachably connected to the hanging part 2101 by bolts. In other embodiments, the first reinforcing plate 2102 and the hanging part 2101 can be riveted, which has higher strength.

[0084] In order to further improve the overall strength of the hanger and pulley 2, and facilitate the disassembly and assembly of the first hanger 21 and the second hanger 22 in the slide rail 4 through the sliding groove 41, the first hanger 21 or the second hanger 22 further includes a supporting plate 2202. In this embodiment, as shown in Figure 17 and Figure 19As shown, the second hanger 22 comprises a supporting plate 2202 connected to the second reinforcing plate 2201 through a connecting plate 22022; when the second reinforcing plate 2201 is connected to the hanging part 2101, the supporting plate 2202 abuts to the lower side of the hanging part 2101 for supporting the hanging part 2101. Further, the second reinforcing plate 2201 is configured with an assembly groove 22011 for accommodating the connecting plate 22022. Specifically, in use, the connecting plate 22022 is embedded in the assembly groove 22011 and is fixedly connected with the second reinforcing plate 2201 through a rivet. In the embodiment, the bottom of the hanging part 2101 is configured with two third screw holes 2103, and the supporting plate 2202 is configured with two positioning holes 22021 corresponding to the two third screw holes 2103. The supporting plate 2202 is fixedly connected with the hanging part 2101 by means of bolts or screws cooperating with the positioning holes 22021 and the third screw holes 2103. The second reinforcing plate 2201 is fixedly connected with the hanging part 2101 through the supporting plate 2202. After the supporting plate 2202 is connected with the hanging part 2101, the supporting plate 2202 can be exposed through the sliding groove 41, so as to facilitate the operation of the staff through the sliding groove 41.

[0085] In the embodiment, preferably, the connecting plate 22022 and the supporting plate 2202 form a 90° angle.

[0086] Further, the hanging part 2101 is provided with a third lifting screw hole 2104 penetrating through the hanging part 2101 and distributed between the two third screw holes 2103. The third lifting screw hole 2104 is used for cooperating with the screw rod on the lifting piece 6 to fix the lifting piece 6. In the embodiment, the third lifting screw hole 2104 can be exposed through the sliding groove 41. Correspondingly, the supporting plate 2202 is provided with an avoiding hole 22023 corresponding to the third lifting screw hole 2104, so as to facilitate the installation and fixation of the lifting piece 6.

[0087] In the embodiment, the mounting ear 211 is arranged on the hanging part 2101 and is integrally formed with the hanging part 2101.

[0088] The technical means disclosed in the present application scheme is not limited to the technical means disclosed in the above-mentioned embodiments, but also includes the technical solutions composed of any combination of the above technical features. It should be noted that, for ordinary skilled in the art, without departing from the principle of the present application, a number of improvements and refinements can also be made, which are also considered within the protection scope of the present application.

Claims

1. A pulley damping assembly, characterized by, The buffer assembly, the hanger lifting pulley and the tail wheel assembly (3) are included; the hanger lifting pulley includes a first hanger (21) and a second hanger (22), the first hanger (21) is provided with a first pulley (212); the second hanger (22) is provided with a second pulley (222); the first hanger (21) and the second hanger (22) are detachably connected; the first hanger (21) or the second hanger (22) is provided with a mounting lug (211); The tail wheel assembly (3) includes a tail connecting piece (31) and a tail wheel hanger (32); the tail connecting piece (31) is provided with a third pulley (314); the tail wheel hanger (32) is provided with a fourth pulley (322); the tail wheel hanger (32) and the tail connecting piece (31) are detachably connected; The buffer assembly includes a shell (1), one end of the shell (1) is detachably connected with the tail connecting piece (31), the other end of the shell (1) is provided with a connecting head (11), the connecting head (11) is provided with a groove, the mounting lug (211) is embedded in the groove, the mounting lug (211) is provided with a through hole (2111), and a fixing bolt (12) penetrates through the through hole (2111) to fix the mounting lug (211) on the connecting head (11); The tail connecting piece (31) includes a main body (311); the main body (311) is provided with a clamping blind hole (3112) and a fixing hole (3111) in communication with each other, the tail wheel hanger (32) is provided with an extension protrusion (324) matched with the clamping blind hole (3112), and the extension protrusion (324) is provided with a positioning screw hole (3241); when the extension protrusion (324) is embedded in the clamping blind hole (3112), the fixing hole (3111) can be coaxial with the positioning screw hole (3241).

2. The pulley damping assembly of claim 1, wherein, The first hanger (21) is provided with a guide groove (225), and the second hanger (22) is provided with a guide block (215) matched with the guide groove (225); or The second hanger (22) is provided with a guide groove (225), and the first hanger (21) is provided with a guide block (215) matched with the guide groove (225); The guide block (215) is slidingly embedded in the guide groove (225); The guide block (215) is configured to be able to only slide out of the guide groove (225) in the extension direction of the guide groove (225).

3. The pulley damping assembly of claim 2, wherein, The guide groove (225) is a trapezoidal groove.

4. The pulley damping assembly of claim 1, wherein, The first hanger (21) is provided with an extension plate (214); The extension plate (214) is provided with a second lifting screw hole (2141).

5. The pulley damping assembly of claim 4, wherein, The first screw hole (216) is provided through the extension plate (214); The second hanger (22) is provided with a second screw hole (223); The first screw hole (216) and the second screw hole (223) are correspondingly distributed. When the first hanger (21) and the second hanger (22) are connected, the first screw hole (216) and the second screw hole (223) can be coaxial.

6. The pulley damping assembly of claim 1, wherein, The inner side surface of the first hanger (21) is configured with a first half screw hole (232), and the inner side surface of the second hanger (22) is configured with a second half screw hole (231); When the first hanger (21) and the second hanger (22) are connected, the first half screw hole (232) can be enclosed with the second half screw hole (231) to form a first hoisting screw hole (23).

7. The pulley damping assembly of claim 6, wherein, The outer side surface of the first hanger (21) is configured with a first reinforcing block (213), and the first reinforcing block (213) is distributed close to the first half screw hole (232); The outer side surface of the second hanger (22) is configured with a second reinforcing block (221), and the second reinforcing block (221) is distributed close to the second half screw hole (231).

8. The pulley damping assembly of any one of claims 1-7, wherein, The first hanger (21) and the second hanger (22) are both configured with a brush assembly; The brush assembly on the first hanger (21) is distributed corresponding to the first pulley (212); The brush assembly on the second hanger (22) is distributed corresponding to the second pulley (222).

9. The pulley damping assembly of claim 8, wherein, The brush assembly comprises a mounting plate (25), and the mounting plate (25) is configured with bristles (251); The first hanger (21) and the second hanger (22) are respectively and detachably connected with the mounting plate (25) corresponding thereto.

10. The pulley damping assembly of claim 9, wherein, The outer side surface of each of the first hanger (21) and the second hanger (22) is provided with a mounting blind hole (27), and the side wall of the mounting blind hole (27) is provided with an extension slot (28) penetrating through; The mounting plate (25) is embedded in the mounting blind hole (27), and the bristles (251) extend out of the mounting blind hole (27) through the extension slot (28); The opening end of the mounting blind hole (27) is clamped with a plugging block (24).

11. The pulley damping assembly of claim 1, wherein, The first hanger (21) comprises a hanging part (2101), and the outer side surface of the hanging part (2101) is configured with a first reinforcing plate (2102); The second hanger (22) comprises at least a second reinforcing plate (2201), and the second reinforcing plate (2201) is detachably connected to the hanging part (2101) and arranged opposite to the first reinforcing plate (2102); The first pulley (212) is rotatably installed to the first reinforcing plate (2102), and the second pulley (222) is rotatably installed to the second reinforcing plate (2201).

12. The pulley damping assembly of claim 11, wherein, Further comprising a supporting plate (2202) connected to the first reinforcing plate (2102) or the second reinforcing plate (2201) through a connecting plate (22022); The supporting plate (2202) is abutted to the lower side of the hanging part (2101).

13. The pulley damping assembly of claims 1, 2, 3, 4, 5, 6, 7, 11, or 12, wherein, The second hanger (22) is configured with a first auxiliary hole (224).

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