Buffering hanging wheel device

Abstract

The utility model relates to a buffering hanging wheel device which comprises a hanging wheel assembly, a buffer assembly and a guide wheel assembly, the first end of the buffer assembly in the sliding direction is provided with a connecting piece connected with the hanging wheel assembly, and the other end of the buffer assembly is connected with the guide wheel assembly. A connecting part extending towards the connecting piece is formed at the end, opposite to the connecting piece, of the hanging wheel assembly, a connecting bayonet penetrating front and back is formed in the bottom face of the connecting part, a connecting groove with an opening in the upper portion is formed in the end, opposite to the hanging wheel assembly, of the connecting piece, and a connecting rod extending front and back is arranged in the connecting groove; the connecting part is inserted into the connecting groove of the connecting piece from the lower part of the connecting part of the hanging wheel assembly to the upper part, so that the connecting rod is clamped into the connecting bayonet in the bottom surface of the connecting part, and the hanging wheel assembly is connected with the connecting piece. The buffering hanging wheel device can be quickly disassembled and assembled.

Description

Technical Field

[0001] The present application relates to door and window hardware, and more specifically, to a buffer hanging wheel device. Background Art

[0002] Currently, in the configuration of household sliding doors, the use of door buffer is very extensive. As is well known, the door buffer can slow down the door leaf and close or stop the door leaf slowly in the final stroke of opening or closing the door leaf, playing the role of preventing pinching hands, protecting the door leaf, and reducing the closing noise, which can greatly improve the use experience of the sliding door, and this is also the reason why the buffer is widely used in the sliding door. However, as a type of door that is used very frequently in buildings, the sliding door usually has to withstand non-conventional operations such as slamming open and closed, impact, and side push in addition to normal use. Therefore, for a sliding door with a buffering function, the maintenance and replacement of the buffer hanging wheel are important after-sales service tasks for the buffered sliding door. However, currently, the buffers and hanging wheel components of most of the buffer sliding door hanging wheel structures on the market are integrally fixed structures. When maintaining and replacing the buffered sliding door later, it is often necessary to remove all the door leaves and the hanging rails to replace the entire set of buffer hanging wheels, which not only has a large replacement difficulty and cumbersome steps, but also has a very high replacement cost. Although there are also some buffer hanging wheel structures on the market that can be disassembled and replaced, only the buffer can be replaced, and the hanging wheel and the guide wheel set cannot be replaced without disassembling the hanging rail, and some are cumbersome to disassemble and install and extremely difficult to operate. Summary of the Utility Model

[0003] The technical problem to be solved by the present application is to provide a buffer hanging wheel device that can be quickly disassembled and assembled in view of the above-mentioned defects of the prior art.

[0004] The technical solution adopted by the present application to solve its technical problems is: to propose a buffer hanging wheel device, including a hanging wheel assembly, a buffer assembly, and a guide wheel assembly. A first end in the sliding direction of the buffer assembly is provided with a connecting member to connect with the hanging wheel assembly, and the other end is connected with the guide wheel assembly. Among them, an end of the hanging wheel assembly opposite to the connecting member forms a connecting portion extending towards the connecting member, and a connecting bayonet that penetrates through the front and back is opened on the bottom surface of the connecting portion. An upper-opening connecting groove is opened at an end of the connecting member opposite to the hanging wheel assembly, and a connecting rod extending in the front and back is provided in the connecting groove of the connecting member. The connecting groove of the connecting member is used for the connecting portion to be inserted upward from below the connecting portion of the hanging wheel assembly, so that the connecting rod is snapped into the connecting bayonet on the bottom surface of the connecting portion, thereby connecting the hanging wheel assembly and the connecting member.

[0005] In an embodiment of the buffer pulley device according to the present application, one end of the connecting member opposite to the pulley assembly further extends a connecting plate downward below the connecting groove toward the pulley assembly. A locking hole penetrating up and down is formed in the connecting plate, and the connecting plate is locked and fixed to the bottom of the pulley assembly by a first fastening member passing upward through the locking hole from below.

[0006] In an embodiment of the buffer pulley device according to the present application, the other end of the connecting plate relatively far from the pulley assembly is provided with a disassembly operation portion.

[0007] In an embodiment of the buffer pulley device according to the present application, the pulley assembly includes a first pulley support plate and a second pulley support plate slidably inserted and combined along the sliding direction, and a first pulley and a second pulley respectively disposed on the outer sides of the first pulley support plate and the second pulley support plate in the front-rear direction facing away from each other; one end of the first pulley support plate opposite to the connecting member extends a first connecting plate, and a first bayonet penetrating front and rear is formed on the bottom surface of the first connecting plate. One end of the second pulley support plate opposite to the connecting member extends a second connecting plate, and a second bayonet penetrating front and rear is formed on the bottom surface of the second connecting plate. After the first pulley support plate and the second pulley support plate are slidably inserted and combined, the first connecting plate and the second connecting plate are attached to form the connecting portion, and the first bayonet and the second bayonet communicate to form the connecting bayonet.

[0008] In an embodiment of the buffer pulley device according to the present application, the first pulley support plate includes a vertical plate and a horizontal plate extending forward from the bottom of the vertical plate. One end of the vertical plate opposite to the connecting member extends to form the first connecting plate. An upper guide groove extending along the sliding direction is formed at the upper end of the inner side of the vertical plate, and a lower slot extending along the sliding direction is formed at the connection between the lower end of the inner side of the vertical plate and the horizontal plate. An upper convex rib slidably matched with the upper guide groove is protruded at the upper end of the inner side of the second pulley support plate, and a lower convex rib slidably matched with the lower slot is protruded at the lower end of the inner side of the second pulley support plate. The second pulley support plate is combined with the first pulley support plate by sliding the upper convex rib and the lower convex rib into the upper guide groove and the lower slot respectively from the other end of the first pulley support plate.

[0009] In one embodiment of the buffer hanging wheel device described in the present application, a door leaf mounting hole that passes through from top to bottom is provided in the middle part of the horizontal plate of the first hanging wheel support plate, and a first mounting hole that passes through from top to bottom is provided at the end of the horizontal plate opposite to the connecting piece for the first fastener to pass through the locking hole from the bottom of the connecting plate of the connecting piece and lock into the hole, and a second mounting hole and a third mounting hole that pass through from top to bottom are respectively provided on both sides of the door leaf mounting hole in the sliding direction of the horizontal plate, and an avoidance hole, a first connecting hole, a second connecting hole and a third connecting hole are respectively provided on the bottom surface of the second hanging wheel support plate facing the door leaf mounting hole, the first mounting hole, the second mounting hole and the third mounting hole; after the second hanging wheel support plate is slidably combined with the first hanging wheel support plate, the second fastener and the third fastener are respectively passed through the second mounting hole and the third mounting hole from the bottom of the first hanging wheel support plate and locked into the second connecting hole and the third connecting hole to fix the second hanging wheel support plate to the first hanging wheel support plate.

[0010] In one embodiment of the buffering hanging wheel device described in the present application, a protrusion is provided at the bottom of the other end of the second hanging wheel support plate relatively far away from the connecting member, and a fourth mounting hole is opened on the bottom surface of the protrusion.

[0011] In one embodiment of the buffer hanging wheel device described in the present application, the guide wheel assembly includes a first guide wheel support plate and a second guide wheel support plate that are slidably connected along a sliding direction, and a first guide wheel and a second guide wheel that are respectively arranged on the outer sides of the first guide wheel support plate and the second guide wheel support plate in the front and rear directions opposite to each other, and the end of the first guide wheel support plate opposite to the buffer assembly forms a connecting block fixedly connected to the buffer assembly.

[0012] In one embodiment of the buffer hanging wheel device described in the present application, a slide groove extending from the other end along the sliding direction and an inner slot extending from the slide groove to the inside of the connecting block are provided on the inner side of the first guide wheel support plate, and a guide groove extending from the other end along the sliding direction is also provided on the lower part of the lower surface of the slide groove on the inner side of the first guide wheel support plate; a sliding block that is slidably matched with the slide groove is convexly provided on the inner side of the second guide wheel support plate, and the end of the sliding block opposite to the buffer assembly forms an inner insertion end that is slidably inserted into the inner slot, and a guide rib that is slidably matched with the guide groove is convexly provided on the lower part of the lower surface of the sliding block on the inner side of the second guide wheel support plate; the second guide wheel support plate is slidably inserted into the slide groove and the guide groove from the other end of the first guide wheel support plate through the sliding block and the guide rib to combine with the first guide wheel support plate.

[0013] In an embodiment of the buffer pulley device according to the present application, a fifth mounting hole is formed in the bottom surface of the connection block and penetrates upward to the inner slot. A fourth connection hole is formed in the bottom surface of the inner insertion end of the second guide wheel support plate opposite to the fifth mounting hole. After the second guide wheel support plate and the first guide wheel support plate are slidably inserted and combined, the second guide wheel support plate and the first guide wheel support plate are fixed by a fourth fastener passing upward through the fifth mounting hole from below the first guide wheel support plate and locking into the fourth connection hole; a sixth mounting hole is further formed at the bottom of the other end of the second guide wheel support plate relatively far from the buffer assembly.

[0014] Implementing the buffer pulley device of the present application has the following beneficial effects: The pulley assembly of the buffer pulley device according to the embodiment of the present application and the connecting member at one end of the buffer assembly are snap-connected through the connection portion with a connection bayonet formed on the bottom surface and the connection groove with an internal connecting rod formed at the opposite end of the connecting member. During installation, first install the pulley assembly into the hanging rail, then install the buffer assembly into the hanging rail through the guide wheel assembly at its other end. Insert the connecting member of the buffer assembly upward from below the connection portion of the pulley assembly through the notch of the hanging rail, and snap the connecting rod into the connection bayonet to achieve quick connection; during disassembly, pull the connecting member downward through the notch of the hanging rail to disengage the connecting rod from the connection bayonet, and the buffer assembly and the pulley assembly can be quickly separated. The buffer pulley device according to a further embodiment of the present application also adopts a split design in which the pulley assembly and the guide wheel assembly are slidably inserted and combined along the sliding direction, further facilitating the disassembly and assembly of the pulley assembly and the guide wheel assembly. Therefore, the buffer pulley device according to the embodiment of the present application can quickly replace the entire set of pulleys and buffers without removing the hanging rail, greatly reducing the difficulty of replacement and maintenance, simplifying the disassembly and installation steps, and saving the later maintenance cost at the same time. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] The present application will be further described below in conjunction with the drawings and embodiments. In the drawings:

[0016] Figure 1 is an exploded structural schematic diagram of the buffer pulley device according to an embodiment of the present application;

[0017] Figure 2 is Figure 1 the exploded structural schematic diagram of the pulley assembly shown in

[0018] Figure 3 is Figure 3 the structural schematic diagram of the second pulley support plate shown in

[0019] Figure 4 is Figure 1 the structural schematic diagram of the guide wheel assembly shown in

[0020] Figure 5 isFigure 4 Schematic structural diagram of the second guide wheel support plate from another angle as shown;

[0021] Figure 6a Schematic diagram of the process of installing the first hanger wheel support plate and the first hanger wheel thereon on the hanging rail in an embodiment of the present application;

[0022] Figure 6b is Figure 6a side view;

[0023] Figure 7a is in Figure 6a Schematic diagram of the process of further installing the second hanger wheel support plate and the second hanger wheel thereon on the hanging rail shown;

[0024] Figure 7b is Figure 7a side view;

[0025] Figure 8 is to Figure 7a Schematic diagram of the process of sliding and inserting the second hanger wheel support plate of the hanging rail shown with the first hanger wheel support plate;

[0026] Figure 9 is to Figure 8 Schematic diagram of the process of locking and fixing the second hanger wheel support plate shown with the first hanger wheel support plate;

[0027] Figure 10a is in Figure 9 Schematic diagram of the process of further installing the buffer assembly on the hanging rail shown and connecting it with the hanger wheel assembly;

[0028] Figure 10b is Figure 10a side view;

[0029] Figure 11 is in Figure 10a Schematic diagram of the process of further installing the second guide wheel support plate and the second guide wheel thereon on the hanging rail shown and sliding and inserting it with the first guide wheel support plate.

[0030] Label description: 100 buffer trolley wheel device; 10 trolley wheel assembly; 11 first trolley wheel support plate; 111 vertical plate; 112 horizontal plate; 113 first connecting plate; 114 first bayonet; 115 door leaf mounting hole; 1161 first mounting hole; 1162 second mounting hole; 1163 third mounting hole; 117 upper guide groove; 118 lower slot; 119 rivet hole; 12 second trolley wheel support plate; 121 second connecting plate; 122 second bayonet; 123 convex block; 124 fourth mounting hole; 125 avoidance hole; 1261 first connecting hole; 1262 second connecting hole; 1263 third connecting hole; 127 upper rib; 128 lower rib; 13 first trolley wheel; 14 second trolley wheel; 15 connecting part; 16; connecting bayonet; 20 buffer component; 21 buffer main body; 22 buffer housing; 221 mounting groove; 30 guide wheel assembly; 31 first guide wheel support plate; 311 sliding groove; 312 inner slot; 313 guiding groove; 314 fifth mounting hole; 32 second guide wheel support plate; 321 slider; 322 inner insertion end; 323 guiding rib; 324 fourth connecting hole; 325 sixth mounting hole; 33 first guide wheel; 34 second guide wheel; 35 connecting block; 40 connecting piece; 41 connecting groove; 411 guiding inclined surface; 42 connecting rod; 43 connecting plate; 44 locking hole; 45 disassembly operation part; 51 rivet; 61 first fastener; 62 second fastener; 63 third fastener; 64 fourth fastener; 200 suspension rail; 201 notch; 301 first installation tool; 302 second installation tool. Detailed implementation manners

[0031] In order to make the objectives, technical solutions and advantages of the present application clearer, the present application will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present application and are not used to limit the present application. Moreover, without conflict, the embodiments in the present application and the features in the embodiments can be combined with each other.

[0032] Figure 1 The exploded structural schematic diagram of a buffer trolley wheel device 100 according to an embodiment of the present application is shown. Refer to Figure 1 As shown, the buffer trolley wheel device 100 mainly consists of a trolley wheel assembly 10, a buffer component 20 and a guide wheel assembly 30. One end in the sliding direction of the buffer component 20 is provided with a connecting piece 40 to connect with the trolley wheel assembly 10, and the other end is connected with the guide wheel assembly 30. Specifically refer to Figure 1As shown, the buffer assembly 20 includes a buffer body 21 and a buffer housing 22. The buffer housing 22 has a mounting groove 221 that penetrates both ends along the sliding direction and is open at the top. The buffer body 21 is installed in the mounting groove 221, and both ends of the buffer body 21 are riveted and fixed to the buffer housing 22 by, for example, rivets. The specific structure and implementation of the buffer body 21 are prior art and will not be elaborated in this application. One end of the connecting member 40 opposite to the buffer housing 22 has a shape adapted to the mounting groove 221 and is inserted into the mounting groove 221 and fixed by, for example, riveting. One end of the connecting member 40 opposite to the hanging wheel assembly 10 is provided with a connecting groove 41 that is open at the top, and a connecting rod 42 extending longitudinally is arranged in the connecting groove 41. In a specific embodiment, the connecting rod 42 can be realized by a pin passing through the connecting groove 41 longitudinally. One end of the hanging wheel assembly 10 opposite to the connecting member 40 forms a connecting portion 15 that extends towards the connecting member 40, and a connecting bayonet 16 that penetrates longitudinally is provided on the bottom surface of the connecting portion 15. The connecting groove 41 of the connecting member 40 is provided from below the connecting portion 15 of the hanging wheel assembly 20 upwards for the connecting portion 15 to be inserted, so that the connecting rod 42 is snapped into the connecting bayonet 16 on the bottom surface of the connecting portion 15, and the hanging wheel assembly 10 can be quickly connected to the connecting member 40 and then to the buffer assembly 20. For the convenience of installation, a guiding inclined surface 411 is further provided at the upper end of the connecting groove 41 of the connecting member 40 to facilitate the insertion of the connecting portion 15. Further refer to Figure 1 As shown, one end of the connecting member 40 opposite to the hanging wheel assembly 10 further extends a connecting plate 43 towards the hanging wheel assembly 10 below the connecting groove 41, and a locking hole 44 that penetrates vertically is provided on the connecting plate 43. After the connecting member 40 and the hanging wheel assembly 10 are snap-connected by the connecting rod 42 being snapped into the connecting bayonet 16, the connecting plate 43 can be further locked and fixed to the bottom of the hanging wheel assembly 10 by a first fastener 61 passing through the locking hole 44 from bottom to top. The first fastener 61 can be a countersunk head screw, and the corresponding locking hole 44 can be a threaded hole. After the first fastener 61 and the locking hole 44 are threadedly connected, they are locked into a first mounting hole 1161 (refer to Figure 2 as shown) provided correspondingly at the bottom of the hanging wheel assembly 10, and the connecting plate 43 can be locked and fixed to the bottom of the hanging wheel assembly 10. When it is necessary to separate the buffer assembly 20 from the hanging wheel assembly 10, only need to loosen the first fastener 61 from the bottom, and then pull the connecting member 40 downwards to make the connecting rod 42 disengage from the connecting bayonet 16. Further refer to Figure 1 As shown, the connecting member 40 further has a disassembly operation portion 45 at the other end of the connecting plate 43 that is relatively far away from the hanging wheel assembly 10. For the convenience of operation, the upper surface of the disassembly operation portion 45 is an inclined surface that slopes downwards relative to the sliding direction. By holding the inclined surface of the disassembly operation portion 45 with the hand and pulling the connecting member 40 downwards, the buffer assembly 20 can be separated from the hanging wheel assembly 10.

[0033] Refer to again Figure 2As shown, the hanging wheel assembly 10 according to an embodiment of the present application is further composed of a first hanging wheel support plate 11 and a second hanging wheel support plate 12, and a first hanging wheel 13 and a second hanging wheel 14 respectively arranged on the outer sides of the first hanging wheel support plate 11 and the second hanging wheel support plate 12 in the front and rear directions away from each other. The hanging wheel assembly 10 is slidably installed in the hanging rail 200 through the first hanging wheel 13 and the second hanging wheel 14. The first hanging wheel 13 and the second hanging wheel 14 can respectively include two pulleys spaced apart along the sliding direction, and are installed by, for example, rivets 51 penetrating through rivet holes 119 opened on the first hanging wheel support plate 11 and the second hanging wheel support plate 12. In addition, one end of the first hanging wheel support plate 11 opposite to the connecting member 40 extends out of the first connecting plate 113 and a first bayonet 114 is opened on the bottom surface of the first connecting plate 113, and one end of the second hanging wheel support plate 12 opposite to the connecting member 40 extends out of the second connecting plate 121 and a second bayonet 122 is opened on the bottom surface of the second connecting plate 121. After the first hanging wheel support plate 11 and the second hanging wheel support plate 12 are slidably connected along the sliding direction by the matching sliding limit structure, the first connecting plate 113 and the second connecting plate 121 are fitted together to form the connecting part 15 of the hanging wheel assembly 10, and the first bayonet 114 and the second bayonet 122 are connected to form the connecting bayonet 16 of the hanging wheel assembly 10.

[0034] See Figure 2 and Figure 3 As shown, the first suspension wheel support plate 11 is L-shaped, including a vertical plate 111 and a horizontal plate 112 extending forward from the bottom of the vertical plate 111. The end of the vertical plate 111 opposite to the connecting member 40 extends to form a first connecting plate 113. An upper guide groove 117 is provided at the inner upper end of the vertical plate 111, and the upper guide groove 117 extends from the other end of the vertical plate 111 along the sliding direction toward the end opposite to the connecting member 40. A lower slot 118 is also provided at the connection between the inner lower end of the vertical plate 111 and the horizontal plate 112, and the lower slot 118 extends from the other end of the vertical plate 111 along the sliding direction toward the end opposite to the connecting member 40. Correspondingly, an upper convex rib 127 is convexly provided on the inner upper end of the second suspension wheel support plate 12 for slidingly inserting into the upper guide groove 117, and a lower convex rib 128 is convexly provided on the inner lower end for slidingly inserting into the lower slot 118. When the second suspension wheel support plate 12 is slidably inserted into the upper guide groove 117 and the lower slot 118 from the other end of the first suspension wheel support plate 11 through the upper convex rib 127 and the lower convex rib 128, respectively, and abuts against each other, it is combined with the first suspension wheel support plate 11 to limit the position. Figure 2 and Figure 3As shown, a door leaf mounting hole 115 penetrating up and down is formed in the middle of the horizontal plate 112 of the first hanger wheel support plate 11. The door leaf mounting hole 115 can be a threaded hole for connecting the mounting screw for hoisting the door leaf bracket. A first mounting hole 1161 penetrating up and down is formed at one end of the horizontal plate 112 opposite to the connecting member 40 for the foregoing first fastener 61 to pass upward from below the connecting plate 43 of the connecting member 40 and lock into the locking hole 44. Second mounting holes 1162 and third mounting holes 1163 penetrating up and down are respectively formed on both sides of the door leaf mounting hole 115 in the sliding direction of the horizontal plate 112 for the installation of the first hanger wheel support plate 11 itself and the fixation with the second hanger wheel support plate 12. Correspondingly, avoiding holes 125, first connection holes 1261, second connection holes 1262 and third connection holes 1263 are respectively formed on the bottom surface of the second hanger wheel support plate 12 opposite to the door leaf mounting hole 115, the first mounting hole 1161, the second mounting hole 1162 and the third mounting hole 1163. After the second hanger wheel support plate 12 is slidably inserted and combined with the first hanger wheel support plate 11, the second fastener 62 and the third fastener 63 can respectively pass upward from below the first hanger wheel support plate 11 through the second mounting hole 1162 and the third mounting hole 1163 and lock into the second connection hole 1262 and the third connection hole 1263, so as to further fix the second hanger wheel support plate 12 and the first hanger wheel support plate 11. In a specific embodiment, the first fastener 61, the second fastener 62 and the third fastener 63 can all be set screws, the corresponding first mounting hole 1161, the second mounting hole 1162 and the third mounting hole 1163 are all threaded holes, and the first connection hole 1261, the second connection hole 1262 and the third connection hole 1263 can be threaded holes or smooth holes. In addition, a convex block 123 is further provided at the bottom of the other end of the second hanger wheel support plate 12 relatively far from the connecting member 40, and a fourth mounting hole 124 is formed on the bottom surface of the convex block 123 for the installation of the second hanger wheel support plate 12 itself.

[0035] See again Figure 4 and Figure 5As shown, the guide wheel assembly 30 according to an embodiment of the present application further includes a first guide wheel support plate 31, a second guide wheel support plate 32, a first guide wheel 33 and a second guide wheel 34 which are respectively arranged on the outer sides of the first guide wheel support plate 31 and the second guide wheel support plate 32 in the front-back direction away from each other. The first guide wheel support plate 31 and the second guide wheel support plate 32 are slidably inserted and combined along the sliding direction through a matching sliding insertion limiting structure to assemble the guide wheel assembly 30 into an integral body. The guide wheel assembly 30 is slidably installed in the hanging rail 200 through the first guide wheel 33 and the second guide wheel 34. The first guide wheel 33 and the second guide wheel 34 can be respectively a pulley. And, one end of the first guide wheel support plate 31 opposite to the buffer assembly 20 forms a connection block 35, and the connection block 35 has a shape adapted to the installation groove 221 of the buffer housing 22 and is inserted into the installation groove 221 and fixed by riveting, for example, so as to fixedly connect the guide wheel assembly 30 and the buffer assembly 20.

[0036] Specifically refer to Figure 4 and Figure 5 As shown, a chute 311 is opened on the inner side of the first guide wheel support plate 31. The chute 311 extends from the other end of the first guide wheel support plate 31 along the sliding direction towards the end opposite to the buffer assembly 20 and extends into the inside of the connection block 35 to form an inner insertion slot 312. A guide groove 313 is also opened on the lower surface of the inner side of the first guide wheel support plate 31 below the chute 311. The guide groove 313 extends from the other end of the first guide wheel support plate 31 along the sliding direction towards the end opposite to the buffer assembly 20. Correspondingly, a slider 321 which is slidably inserted and matched with the chute 311 is convexly provided on the inner side of the second guide wheel support plate 32, and an inner insertion end 322 is formed at one end of the slider 321 opposite to the buffer assembly 20 and is slidably inserted into the inner insertion slot 312. A guide rib 323 which is slidably inserted and matched with the guide groove 313 is also convexly provided on the lower surface of the inner side of the second guide wheel support plate 32 below the slider 321. When the second guide wheel support plate 32 is slidably inserted into the chute 311 and the guide groove 313 from the other end of the first guide wheel support plate 31 through the slider 321 and the guide rib 323 and abuts against each other, it is combined and limited with the first guide wheel support plate 31. Further refer to Figure 4 and Figure 5As shown, a fifth mounting hole 314 is formed in the bottom surface of the connecting block 35 and penetrates upward to the inner slot 312. A fourth connecting hole 324 is formed in the bottom surface of the inner insertion end 322 of the second guide wheel support plate 32 opposite to the fifth mounting hole 314. After the second guide wheel support plate 32 is slidably inserted and combined with the first guide wheel support plate 31, the fourth fastener 64 is passed upward through the fifth mounting hole 314 from below the first guide wheel support plate 31 and locked into the fourth connecting hole 324, so that the second guide wheel support plate 32 and the first guide wheel support plate 31 can be further fixed. In a specific embodiment, the fourth fastener 64 may be a set screw, the corresponding fifth mounting hole 314 may be a threaded hole, and the fourth connecting hole 324 may be a threaded hole or a smooth hole. In addition, a sixth mounting hole 325 is formed at the bottom of the other end of the second guide wheel support plate 32 relatively far from the buffer assembly 20 for the installation of the second guide wheel support plate 32 itself.

[0037] The following will combine Figures 6a to 11 to introduce in detail the installation process of the buffer pulley device 100 according to the above embodiments of the present application into the suspension rail 200.

[0038] First, as shown in Figure 6a and Figure 6b , a first installation tool 301 (such as a knurled screw) is inserted into the second mounting hole 1162 at the bottom of the first guide wheel support plate 11 where the first guide wheel 13 is installed. The first guide wheel support plate 11 is placed in the suspension rail 200 from one end of the suspension rail 200 and installed on one side of the suspension rail 200 through the first guide wheel 13. Then, as shown in Figure 7a and Figure 7b , a second installation tool 302 (such as a knurled screw) is inserted into the fourth mounting hole 124 at the bottom of the second guide wheel support plate 12 where the second guide wheel 14 is installed. The second guide wheel support plate 12 is placed in the suspension rail 200 from the same end of the suspension rail 200 and installed on the other side of the suspension rail 200 through the second guide wheel 14. Then, as shown in Figure 8 , the second guide wheel support plate 12 is slid along the suspension rail 200 in the sliding direction indicated by the arrow in Figure 8 until it is slidably inserted and combined with the first guide wheel support plate 11. Then, as shown in Figure 9 , the first installation tool 301 on the first guide wheel support plate 11 is removed, and the second fastener 62 and the third fastener 63 are respectively passed upward through the second mounting hole 1162 and the third mounting hole 1163 from below the first guide wheel support plate 11 and locked into the second connecting hole 1262 and the third connecting hole 1263, so as to lock and fix the second guide wheel support plate 12 and the first guide wheel support plate 11. Then, as shown in Figure 10a and Figure 10bAs shown, for the vertical holding buffer assembly 20, the first guide wheel support plate 31 fixedly connected to the buffer assembly 20 is inserted into one side inside the suspension rail 200 from the other end of the suspension rail 200 through the first guide wheel 33. Then, rotate the buffer assembly 20 so that the buffer assembly 20 and its connecting member 40 enter the suspension rail 200 from bottom to top through the notch 201 of the suspension rail 200 as shown by the arrow in Figure 10a so that the connection groove 41 of the connecting member 40 faces the connecting portion 15 of the hanging wheel assembly 10 for the connecting portion 15 to be inserted. The buffer assembly 20 is snap-connected to the hanging wheel assembly 10 by clamping the connecting rod 42 into the connection bayonet 16. Then refer to Figure 11 As shown, a first installation tool 301 (such as a knurled screw) is inserted into the sixth installation hole 325 at the bottom of the second guide wheel support plate 32 where the second guide wheel 34 is installed. The second guide wheel support plate 32 is inserted into the other side inside the suspension rail 200 from the other end of the suspension rail 200 through the second guide wheel 34, and slides along the suspension rail 200 in the sliding direction shown by the arrow in Figure 11 until it is slidably inserted and combined with the first guide wheel support plate 31. Then, the fourth fastener 64 is passed upward through the fifth installation hole 314 from below the first guide wheel support plate 31 and locked into the fourth connection hole 324 to lock and fix the second guide wheel support plate 32 and the first guide wheel support plate 31. At the same time, the first fastener 61 is passed upward through the locking hole 44 from below the connecting plate 43 of the connecting member 40 and locked into the corresponding first installation hole 1161 and the first connection hole 1261 at the bottom of the hanging wheel assembly 10 to lock and fix the buffer assembly 20 and the hanging wheel assembly 10, and the installation of the buffer hanging wheel device 100 is completed. When it is necessary to disassemble the foregoing buffer hoisting device 100 from the suspension rail 200, the operation steps are opposite to the foregoing installation steps, that is, first loosen the fourth fastener 64 to separate the second guide wheel support plate 32 from the first guide wheel support plate 31 and then take it out of the guide rail 200. Then loosen the first fastener 61, and pull the buffer assembly 20 downward through the notch 201 of the suspension rail 200 by means of the disassembly operation portion 45 of the connecting member 40 to release the snap connection between the connecting member 40 and the hanging wheel assembly 10. Then take out the buffer assembly 20 from the suspension rail 200. Then loosen the second fastener 62 and the third fastener 63, separate the second hanging wheel support plate 12 from the first hanging wheel support plate 11 and then take them out of the suspension rail 200 respectively, so that the disassembly of the entire buffer hanging wheel device 100 is completed.

[0039] The buffer hanging wheel device according to the above embodiments of the present application can complete the overall quick disassembly, installation and replacement without disassembling the suspension rail, which greatly reduces the difficulty of replacement and maintenance, simplifies the disassembly and installation steps, and at the same time saves the later maintenance cost.

[0040] The above are only the preferred embodiments of the present application and are not intended to limit the present application. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present application shall be included within the protection scope of the present application.

Claims

1. A buffer pulley device, comprising a pulley assembly, a buffer assembly and a guide wheel assembly. A connecting piece is provided at a first end in the sliding direction of the buffer assembly and is connected to the pulley assembly, and the other end is connected to the guide wheel assembly. It is characterized in that, One end of the hanging wheel assembly opposite to the connecting member forms a connecting portion extending towards the connecting member, and a connecting bayonet penetrating through in the front and rear directions is formed on the bottom surface of the connecting portion. An upwardly open connecting groove is formed at one end of the connecting member opposite to the hanging wheel assembly, and a connecting rod extending in the front and rear directions is provided in the connecting groove. The connecting groove of the connecting member allows the connecting portion to be inserted upward from below the connecting portion of the hanging wheel assembly, so that the connecting rod is snapped into the connecting bayonet on the bottom surface of the connecting portion, thereby connecting the hanging wheel assembly and the connecting member.

2. The buffer pulley device according to claim 1, characterized in that, One end of the connecting member opposite to the hanging wheel assembly further extends a connecting plate towards the hanging wheel assembly below the connecting groove. A locking hole penetrating through in the up and down directions is formed in the connecting plate. The connecting plate is locked and fixed to the bottom of the hanging wheel assembly by a first fastener passing through the locking hole from bottom to top.

3. The buffer pulley device according to claim 2, characterized in that, The other end of the connecting plate relatively far from the hanging wheel assembly is provided with a disassembly operation portion.

4. The buffer pulley device according to claim 2, wherein, The hanging wheel assembly includes a first hanging wheel support plate and a second hanging wheel support plate that are slidably inserted and combined along the sliding direction, and a first hanging wheel and a second hanging wheel respectively arranged on the outer sides in the front and rear directions of the first hanging wheel support plate and the second hanging wheel support plate that are opposite to each other; one end of the first hanging wheel support plate opposite to the connecting member extends a first connecting plate, and a first bayonet penetrating through in the front and rear directions is formed on the bottom surface of the first connecting plate. One end of the second hanging wheel support plate opposite to the connecting member extends a second connecting plate, and a second bayonet penetrating through in the front and rear directions is formed on the bottom surface of the second connecting plate. After the first hanging wheel support plate and the second hanging wheel support plate are slidably inserted and combined, the first connecting plate and the second connecting plate are attached to form the connecting portion, and the first bayonet and the second bayonet communicate to form the connecting bayonet.

5. The buffer hanger pulley device according to claim 4, characterized in that The first hanging wheel support plate includes a vertical plate and a horizontal plate extending forward from the bottom of the vertical plate. One end of the vertical plate opposite to the connecting member extends to form the first connecting plate. An upper guide groove extending along the sliding direction is formed at the upper end of the inner side of the vertical plate. A lower slot extending along the sliding direction is formed at the connection between the lower end of the inner side of the vertical plate and the horizontal plate. An upper convex rib slidably matched with the upper guide groove is convexly provided at the upper end of the inner side of the second hanging wheel support plate, and a lower convex rib slidably matched with the lower slot is convexly provided at the lower end of the inner side. The second hanging wheel support plate is combined with the first hanging wheel support plate by sliding the upper convex rib and the lower convex rib into the upper guide groove and the lower slot respectively from the other end of the first hanging wheel support plate.

6. The buffer hanger pulley device according to claim 5, wherein, A door leaf mounting hole is provided in the middle of the horizontal plate of the first hanging wheel support plate, and a first mounting hole is provided at the end of the horizontal plate opposite to the connecting piece, so that the first fastener can pass through the locking hole from the bottom of the connecting plate of the connecting piece and lock into it. A second mounting hole and a third mounting hole are provided on both sides of the door leaf mounting hole in the sliding direction of the horizontal plate, and an avoidance hole, a first connecting hole, a second connecting hole and a third connecting hole are provided on the bottom surface of the second hanging wheel support plate facing the door leaf mounting hole, the first mounting hole, the second mounting hole and the third mounting hole, respectively; after the second hanging wheel support plate is slidably combined with the first hanging wheel support plate, the second fastener and the third fastener are respectively passed through the second mounting hole and the third mounting hole from the bottom of the first hanging wheel support plate and locked into the second connecting hole and the third connecting hole to fix the second hanging wheel support plate to the first hanging wheel support plate.

7. The buffer hanger wheel device according to claim 6, characterized in that, The second hanging wheel support plate is provided with a protrusion at the bottom of the other end relatively far away from the connecting member, and a fourth mounting hole is provided on the bottom surface of the protrusion.

8. The buffer hanger wheel device according to claim 1, characterized in that, The guide wheel assembly includes a first guide wheel support plate and a second guide wheel support plate which are slidably connected along a sliding direction, and a first guide wheel and a second guide wheel which are respectively arranged on the outer sides of the first guide wheel support plate and the second guide wheel support plate in a front-to-rear direction opposite to each other. An end of the first guide wheel support plate opposite to the buffer assembly forms a connecting block which is fixedly connected to the buffer assembly.

9. The buffer hanger wheel device according to claim 8, wherein, The inner side of the first guide wheel support plate is provided with a slide groove extending from the other end along the sliding direction and an inner slot extending from the slide groove to the inside of the connecting block, and a guide groove extending from the other end along the sliding direction is also provided at the lower part of the lower surface of the slide groove on the inner side of the first guide wheel support plate; a sliding block that is slidably matched with the slide groove is convexly provided on the inner side of the second guide wheel support plate, and the end of the sliding block opposite to the buffer assembly forms an inner insertion end that is slidably inserted into the inner slot, and a guide rib that is slidably matched with the guide groove is convexly provided at the lower part of the lower surface of the sliding block on the inner side of the second guide wheel support plate; the second guide wheel support plate is slidably inserted into the slide groove and the guide groove from the other end of the first guide wheel support plate through the sliding block and the guide rib to combine with the first guide wheel support plate.

10. The buffer pulley device according to claim 9, wherein The bottom surface of the connecting block is provided with a fifth mounting hole which passes upward to the inner slot, and the bottom surface of the inner insertion end of the second guide wheel support plate is provided with a fourth connecting hole which is opposite to the fifth mounting hole. After the second guide wheel support plate is slidably connected with the first guide wheel support plate, a fourth fastener is used to pass through the fifth mounting hole from the bottom of the first guide wheel support plate upward and lock into the fourth connecting hole to fix the second guide wheel support plate to the first guide wheel support plate; the second guide wheel support plate is also provided with a sixth mounting hole at the bottom of the other end relatively away from the buffer assembly.

Images