Anti-jump wheel and door and window assembly

Abstract

The utility model discloses a kind of anti-jump wheel and door and window assembly, anti-jump wheel is used to install to the frame of fan section bar, it includes: slot piece, for with the frame of fan section bar fixed;Pulley assembly, including gyro wheel and fixed support, the fixed support one end rotationally connected in the slot piece, the other end is rotationally connected with the gyro wheel;Adjusting assembly, be in the slot piece and with the fixed support transmission connection, for with the slot piece cooperation is rotated to drive the fixed support rotation around the slot piece, to make the fixed support drive the gyro wheel rise or drop;Buffer, be between the adjusting assembly and the slot piece, for the adjusting assembly provides elastic buffer. The anti-jump wheel of the application is simple in structure and can better stress, and anti-jump effect is better.

Description

Technical Field

[0001] This utility model relates to the field of door and window technology, and in particular to an anti-jumping wheel and door and window components. Background Technology

[0002] Sliding doors and windows are now ubiquitous in daily life. They open and close by sliding left and right. With their widespread use, the stability requirements for sliding doors and windows are becoming increasingly stringent. Anti-jump rollers are accessories installed on sliding windows or doors, primarily to prevent the door or window sash from bouncing or derailing during sliding. Anti-jump rollers are typically installed on the upper or lower rails of sliding doors and windows to enhance their sturdiness and security. However, existing anti-jump rollers not only have many parts and complex installation, but also have poor load-bearing capacity, easily deforming under certain pressure and causing them to malfunction, resulting in abnormal noises during sliding. Utility Model Content

[0003] This utility model provides an anti-jumping wheel and door / window assembly, which aims to solve the problem of poor force distribution in traditional anti-jumping wheels.

[0004] In a first aspect, this utility model embodiment provides an anti-jumping wheel for mounting to the frame of a fan profile, comprising:

[0005] Through slots are used to fix the fan-shaped profile to the frame.

[0006] The pulley assembly includes a roller and a fixed bracket, one end of which is rotatably connected to the through-groove member, and the other end of which is rotatably connected to the roller;

[0007] An adjustment component is provided on the slotted member and is throttle-connected to the fixed bracket. It is used to cooperate with the slotted member to rotate so as to drive the fixed bracket to rotate around the slotted member, so as to drive the roller to rise or fall.

[0008] A buffer element is disposed between the adjustment component and the slotted component to provide elastic buffering for the adjustment component.

[0009] In the anti-jumping wheel provided in this embodiment of the utility model, the adjustment component includes a bolt and a nut plate. The inner side of the slotted part is provided with a laterally extending adjustment channel. The nut plate is connected to the fixed bracket. One end of the bolt is movably disposed in the adjustment channel, and the other end is threadedly connected to the nut plate. The bolt is used to rotate and drive the nut plate to move along the axial direction of the bolt so as to drive the fixed bracket to rotate around the slotted part.

[0010] In the anti-jumping wheel provided in this embodiment of the utility model, the buffer is a spring sheet, the spring sheet is located at the rear end of the adjustment channel, and the bolt is located at one end of the adjustment channel and abuts against the spring sheet.

[0011] In the anti-jumping wheel provided in this embodiment of the utility model, the grooved member has an adjustment hole with a diameter smaller than that of the adjustment channel at the rear end of the adjustment channel. The rear end of the adjustment channel extends directly to the outside of the grooved member through the adjustment hole. The spring plate stops at the edge of the adjustment hole. One end of the bolt located in the adjustment channel has an adjustment part. The adjustment part is exposed on the outside of the grooved member through the adjustment hole. The adjustment part is used to rotate the bolt with a tool.

[0012] In the anti-jumping wheel provided in this embodiment of the utility model, the fixed bracket includes a first side plate and a second side plate spaced apart from each other. One end of the first side plate and the second side plate are respectively rotatably connected to the opposite sides of the slotted member. The roller is rotatably disposed between the ends of the first side plate and the second side plate away from the slotted member. The nut piece is connected between the first side plate and the second side plate.

[0013] In the anti-jumping wheel provided in this embodiment of the utility model, a connecting hole is provided on both the first side plate and the second side plate, and a protrusion is provided on the opposite sides of the through-groove member. The through-groove member is hinged to the first side plate and the second side plate by passing through the protrusion through the connecting hole.

[0014] In the anti-jumping wheel provided in this embodiment of the utility model, both the first side plate and the second side plate are provided with strip-shaped openings. The strip-shaped openings on the first side plate and the second side plate are aligned and overlapped. The nut piece is inserted into the strip-shaped opening and is movable between the two ends of the strip-shaped opening that are far apart from each other.

[0015] In the anti-jumping wheel provided in this embodiment of the utility model, the groove member has stepped portions protruding on both sides of the opposite side that are hinged to the first side plate and the second side plate. When the first side plate and the second side plate rotate relative to the groove member by a first angle, the stepped portions stop the edges of the first side plate and the second side plate away from the roller.

[0016] In the anti-jumping wheel provided in this embodiment of the utility model, the anti-jumping wheel also includes a slotting screw. The bottom edge of the slotting member is provided with a slotting hole extending downward at an angle. The slotting screw passes through the slotting hole and is used to thread it to the frame of the fan profile to fix the slotting member to the frame of the fan profile.

[0017] Secondly, this utility model provides a door and window assembly, which includes the anti-jumping wheel described in the first aspect.

[0018] This utility model provides an anti-jumping wheel and a door / window assembly. The anti-jumping wheel is used to be installed on the frame of a sash profile. The anti-jumping wheel includes: a slotted member for fixing to the frame of the sash profile; a pulley assembly including a roller and a fixed bracket, one end of the fixed bracket being rotatably connected to the slotted member and the other end being rotatably connected to the roller; an adjusting component disposed on the slotted member and pulsatorically connected to the fixed bracket, for cooperating with the slotted member to rotate and drive the fixed bracket to rotate around the slotted member, so that the fixed bracket drives the roller to rise or fall; and a buffer member disposed between the adjusting component and the slotted member for providing elastic buffering for the adjusting component. The anti-jumping wheel of this application has an adjustment component on the grooved part for transmission connection with the fixed bracket of the pulley assembly. The adjustment component and the grooved part rotate together to drive the fixed bracket of the pulley assembly to rotate around the grooved part, thereby realizing the lifting and lowering adjustment of the roller. A buffer is provided between the adjustment component and the grooved part to provide elastic buffering. The anti-jumping wheel as a whole not only has better force distribution and can withstand greater pressure, but also has a better anti-jumping effect. Attached Figure Description

[0019] To more clearly illustrate the technical solutions of the embodiments of this utility model, the drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0020] Figure 1 A side view of the anti-jump wheel provided in an embodiment of this utility model;

[0021] Figure 2 A cross-sectional view of the anti-jumping wheel provided in an embodiment of this utility model;

[0022] Figure 3 Exploded view of the anti-jump wheel provided in the embodiment of this utility model;

[0023] Figure 4 A cross-sectional view of the slotted component provided in an embodiment of this utility model;

[0024] Figure 5 A perspective view of the adjustment component provided in an embodiment of this utility model;

[0025] Figure 6 Rear view of the anti-jump wheel provided in an embodiment of this utility model;

[0026] Figure 7A perspective view of the pulley assembly provided in an embodiment of this utility model;

[0027] Figure 8 A perspective view of the slotted component provided in an embodiment of this utility model;

[0028] Figure 9 Another perspective view of the slotted component provided in an embodiment of this utility model;

[0029] Figure 10 A perspective view of the anti-jumping wheel provided in an embodiment of this utility model.

[0030] The labels for the attached figures are as follows:

[0031] 1. Through slot; 11. Stepped section; 101. Adjustment channel; 102. Adjustment hole; 103. Through slot hole; 12. Protrusion; 2. Pulley assembly; 21. Roller; 22. Fixed bracket; 221. First side plate; 222. Second side plate; 201. Strip opening; 202. Connecting hole; 3. Adjustment assembly; 31. Bolt; 301. Adjustment part; 32. Nut piece; 4. Spring piece; 5. Through slot screw. Detailed Implementation

[0032] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of the present utility model.

[0033] The directional terms used in this invention, such as "up," "down," "front," "back," "left," "right," "inner," "outer," and "side," are merely for reference to the accompanying drawings. Therefore, the directional terms used are for explanation and understanding of this invention, and not for limiting it. Furthermore, in the accompanying drawings, structures that are similar or identical are indicated by the same reference numerals.

[0034] Reference Figures 1 to 10 , please refer to Figure 1 and Figure 2This invention demonstrates an embodiment of the anti-jumping wheel provided by this utility model. The structure and working principle of the anti-jumping wheel will be described in detail below with reference to the accompanying drawings. The anti-jumping wheel is used to install onto the frame of a fan-shaped profile. The anti-jumping wheel includes: a slotted member 1 for fixing to the frame of the fan-shaped profile; a pulley assembly 2, including a roller 21 and a fixed bracket 22, one end of which is rotatably connected to the slotted member 1, and the other end is rotatably connected to the roller 21; an adjusting assembly 3, disposed on the slotted member 1 and pulsatorically connected to the fixed bracket 22, for cooperating with the slotted member 1 to rotate and drive the fixed bracket 22 to rotate around the slotted member 1, so that the fixed bracket 22 drives the roller 21 to rise or fall; and a buffer member 4, disposed between the adjusting assembly 3 and the slotted member 1, for providing elastic buffering for the adjusting assembly 3.

[0035] In practice, anti-jumping rollers are mainly used in sliding doors or windows. Sliding doors and windows are usually composed of two parts: sash profiles and frame profiles. The frame profiles are rectangular frame structures with tracks on the top and bottom sides, such as sliding door frames and sliding window frames. The sash profiles are usually composed of rectangular frames and glass or other profiles installed inside the frames, such as sliding door sashes and sliding window sashes. The sash profiles have pulleys installed on the bottom or top and bottom sides of the frame, and the sliding is achieved by the pulleys cooperating with the tracks of the frame profiles.

[0036] In this embodiment, the anti-jump wheel is installed on the frame of the fan-shaped profile, specifically on the upper or lower frame. The anti-jump wheel contacts and engages with the frame profile by being installed on the frame, reducing the fan-shaped profile's jump relative to the frame profile and improving the stability of the fan-shaped profile's sliding relative to the frame profile. The anti-jump wheel is composed of a slotted component 1, a pulley assembly 2, an adjusting assembly 3, and a buffer component 4. The slotted component 1 is used to connect and fix to the frame of the fan-shaped profile. By fixing the slotted component 1 to the frame of the fan-shaped profile, the entire anti-jump wheel is installed on the fan-shaped profile. The pulley assembly 2 mainly consists of a roller 21 and a fixed bracket 22. One end of the fixed bracket 22 is rotatably connected to the slotted component 1, and the other end is rotatably connected to the roller 21. Overall, the fixed bracket 22 is rotatable relative to the slotted component 1, and the roller 21 is rotatable relative to the fixed bracket 22. The adjusting assembly 3 is mainly disposed on the slotted component 1 and is drivenly connected to the fixed bracket 22. The drive connection may include threaded drive or other drive methods. The adjusting component 3 rotates in conjunction with the slotted part 1, causing the fixed bracket 22 to rotate around the slotted part 1. Since the roller 21 is integrally connected to the fixed bracket 22, the rotation of the fixed bracket 22 around the slotted part 1 causes the roller 21 to move relative to the slotted part 1, allowing the roller 21 to rise or fall relative to the edge of the fan-shaped profile. A buffer component 4 is positioned between the adjusting component 3 and the slotted part 1, specifically in the gap between the adjusting side of the adjusting component 3 and the slotted part 1. It provides elastic buffering for the adjusting component 3 by cooperating with both the adjusting component 3 and the slotted part 1. The buffer component 4 can be a structural component with elastic deformation capabilities, such as a spring or a spring sheet. In practical applications, the height of the roller 21 relative to the edge of the fan-shaped profile can be adjusted by rotating the adjusting component 3, achieving the best fit with the frame profile. When the roller 21 is subjected to force, the force acts on the adjusting component through the fixed bracket 22. The buffer component 4 provides elastic buffering for the adjusting component 3 between the adjusting component 3 and the slotted part 1, absorbing and dispersing the external force, thereby achieving an anti-jumping effect.

[0037] In one embodiment, reference is made to Figures 1 to 5The adjusting assembly 3 includes a bolt 31 and a nut 32. The inner side of the slotted member 1 has a laterally extending adjusting channel 101. The buffer member 4 is disposed within the adjusting channel 101. The nut 32 is connected to the fixed bracket 22. One end of the bolt 31 is movably disposed within the adjusting channel 101 and connected to the buffer member 4, while the other end is threadedly connected to the nut 32. The bolt 31 is used to rotate and drive the nut 32 to move axially along the bolt 31, thereby causing the fixed bracket 22 to rotate around the slotted member 1. In a specific implementation, the adjusting assembly 3 is connected to the fixed bracket 22 via threaded transmission. The adjusting assembly 3 consists of a bolt 31 and a nut 32. The nut 32 has a threaded hole adapted to the bolt 31 and is connected to the fixed bracket 22 as a single unit. A laterally extending adjustment channel 101 is provided on the inner side of the through-groove 1. The adjustment channel 101 is actually a hole structure with a certain depth. The buffer 4 is disposed inside the adjustment channel 101. The diameter of the adjustment channel 101 is slightly larger than the diameter of the bolt 31 head. The bolt 31 as a whole can rotate and move freely relative to the adjustment channel 101. Specifically, one end of the bolt 31 is rotatably disposed in the adjustment channel 101 and connected to the buffer 4 inside the adjustment channel 101. Specifically, the head of the bolt 31 is disposed in the adjustment channel 101 and abuts against the buffer 4. The other end of the bolt 31 is threaded through the nut plate 32 and is threadedly connected to the nut plate 32. In practical applications, by rotating the bolt 31 in different directions, the nut piece 32 can be moved axially along the bolt 31 under the action of threaded transmission. The length of the bolt 31 screwed into the nut piece 32 changes, while the position of one end of the bolt 31 in the adjustment channel 101 remains unchanged, causing the nut piece 32 to move closer to or further away from the adjustment channel 101. Since the nut piece 32 is connected to the fixed bracket 22 of the pulley assembly 2, the movement of the nut piece 32 drives the fixed bracket 22 to move together, thereby causing the fixed bracket 22 to rotate around the through slot 1 about the rotatably connected part on the through slot 1, thereby driving the roller 21 to rise or fall. Therefore, by rotating the bolt 31 in different directions, the height of the roller 21 can be adjusted, which is very convenient. The end of the bolt 31 is supported and guided by the adjustment channel 101 on the through slot 1, and can withstand greater pressure without deformation. When the roller 21 is under force, the fixed bracket 22 drives the nut piece 32 and the bolt 31 to move towards the adjustment channel 101 together, so that the bolt 31 presses against the rear end of the adjustment channel 101, while the buffer 4 provides elastic buffer for the bolt 31, absorbing and dispersing the external force to achieve the anti-jumping effect.

[0038] Furthermore, referring to Figure 2 and Figure 3The buffer element is a spring sheet, located at the rear end of the adjustment channel 101. One end of the bolt 31, located within the adjustment channel 101, abuts against the spring sheet. Specifically, the buffer element 4 is a spring sheet, a curved, annular sheet structure with resilience. When compressed, it undergoes elastic deformation, generating elastic force. The spring sheet is entirely located at the rear end of the adjustment channel 101, which is the end furthest from the nut piece 32. The bolt 31 abuts against the spring sheet at one end of the adjustment channel 101. In practical applications, when the roller 21 is subjected to force, the fixed bracket 22 drives the nut piece 32, along with the bolt 31, to advance towards the adjustment channel 101. Because the end of the bolt 31 abuts against the spring sheet, the spring sheet deforms, generating elastic force that reacts to the roller 21, causing it to rebound, thus creating a buffering effect and improving anti-jump performance.

[0039] Furthermore, referring to Figures 4 to 6 The slotted member 1 has an adjustment hole 102 with a diameter smaller than that of the adjustment channel 101 at the rear end of the adjustment channel 101. The rear end of the adjustment channel 101 extends directly to the outside of the slotted member 1 through the adjustment hole 102. The spring plate stops at the edge of the adjustment hole 102. One end of the bolt 31 located inside the adjustment channel 101 has an adjustment part 301. The adjustment part 301 is exposed on the outside of the slotted member 1 through the adjustment hole 102. The adjustment part 301 is used to rotate the bolt 31 with the help of a tool. In specific implementation, the slotted part 1 has an adjustment hole 102 at the rear end of the adjustment channel 101. The diameter of the adjustment hole 102 is smaller than the diameter of the adjustment channel 101. The rear end of the adjustment channel 101 leads directly to the outside of the slotted part 1 through the adjustment hole 102. That is, the adjustment hole 102 directly connects the outside of the slotted part 1 with the rear end of the adjustment channel 101. The spring is blocked by the edge of the adjustment hole 102 and cannot pass through the adjustment hole 102. The bolt 31 is provided with an adjustment part 301 at one end inside the adjustment channel 101. The adjustment part 301 is a structure used to rotate the bolt 31 with a tool. In this embodiment, the adjustment part 301 is an internal hexagonal opening. In other embodiments, the adjustment part 301 can be a slotted opening, a cross opening, or other structures. The adjustment part 301 on the bolt 31 is exposed on the outside of the slotted part 1 through the adjustment hole 102. In practical applications, tools such as Allen wrenches or screwdrivers are used to engage with the adjustment part 301 by passing through the adjustment hole 102, thereby making it very convenient to rotate the bolt 31 and adjust the height of the roller 21.

[0040] In one embodiment, reference is made to Figure 3 , Figure 6 and Figure 7The fixed bracket 22 includes a first side plate 221 and a second side plate 222 spaced apart from each other. One end of the first side plate 221 and the second side plate 222 are respectively rotatably connected to the opposite sides of the slotted member 1. The roller 21 is rotatably disposed between the ends of the first side plate 221 and the second side plate 222 away from the slotted member 1. The nut piece 32 is connected between the first side plate 221 and the second side plate 222. In specific implementation, the fixing frame mainly consists of a first side plate 221 and a second side plate 222. The first side plate 221 and the second side plate 222 are arranged parallel and spaced apart. One end of the first side plate 221 and the second side plate 222 are respectively rotatably connected to the opposite sides of the through-groove member 1, so that they can rotate relative to the through-groove member 1. The roller 21 is rotatably disposed between the ends of the first side plate 221 and the second side plate 222 away from the through-groove member 1. The nut piece 32 is connected between the first side plate 221 and the second side plate 222, and is threadedly connected to the first side plate 221 and the second side plate 222 with bolts 31. Overall, the stability of the fixing bracket 22 driving the pulley to rotate is improved by the rotatable connection between the first side plate 221 and the second side plate 222 and the sides of the through-groove member 1.

[0041] Furthermore, referring to Figures 7 to 9 Both the first side plate 221 and the second side plate 222 have connecting holes 202. The through-groove member 1 has protrusions 12 on opposite sides. The through-groove member 1 is hinged to the first side plate 221 and the second side plate 222 by passing through the connecting holes 202 via the protrusions 12. Specifically, both the first side plate 221 and the second side plate 222 have connecting holes 202. The connecting holes 202 on the first side plate 221 and the second side plate 222 are aligned. The protrusions 12 on opposite sides of the through-groove member 1 can be formed by rivets passing laterally through the through-groove member 1. The slotted part 1 is inserted into the connecting holes 202 of the first side plate 221 and the second side plate 222 through the protrusions 12 on both sides to be hinged to the first side plate 221 and the second side plate 222. By hinged to the first side plate 221 and the second side plate 222 on both sides of the slotted part 1, the stability of the structure can be greatly improved. When the roller 21 is subjected to force, the overall structure is not easy to deform.

[0042] Furthermore, referring to Figure 7Both the first side plate 221 and the second side plate 222 are provided with strip openings 201. The strip openings 201 on the first side plate 221 and the strip openings 201 on the second side plate 222 are aligned and overlapped. The nut piece 32 passes through the strip openings 201 and is movable between the two ends of the strip openings 201 that are far apart from each other. In specific implementation, both the first side plate 221 and the second side plate 222 are provided with strip-shaped openings 201 of the same shape, one end of which is at the top and the other end at the bottom. The strip-shaped openings 201 on the first side plate 221 and the second side plate 222 are aligned and overlapped. The strip-shaped openings 201 are mainly used to install the nut piece 32. The nut piece 32 is inserted entirely through the strip-shaped openings 201, with one end of the nut piece 32 passing through the strip-shaped opening 201 on the first side plate 221 and the other end passing through the strip-shaped opening 201 on the second side plate 222. The nut piece 32 can move between the two ends of the strip-shaped opening 201, that is, it can move between the upper and lower ends of the strip-shaped opening 201. In practical applications, when the bolt 31 is rotated, the bolt 31 will tilt, causing the nut piece 32 to tilt. The design of the strip-shaped openings 201 allows the nut piece 32 to adjust its position as the bolt 31 tilts, reducing the stress caused by the tilt of the bolt 31.

[0043] Furthermore, referring to Figures 8 to 10 The slotted member 1 has stepped portions 11 protruding on both sides of its hinged connection with the first side plate 221 and the second side plate 222. When the first side plate 221 and the second side plate 222 rotate relative to the slotted member 1 by a first angle, the stepped portions 11 stop the edges of the first side plate 221 and the second side plate 222 away from the roller 21. In specific implementation, steps 11 are provided on the opposite sides of the slotted part 1 where it is hinged to the first side plate 221 and the second side plate 222. The steps 11 are protruding structures on both sides of the slotted part 1, so that the opposite sides of the slotted part 1 form a step structure with one high and one low. The steps 11 are mainly used to limit the rotation angle of the first side plate 221 and the second side plate 222 relative to the slotted part 1. When the first side plate 221 and the second side plate 222 rotate relative to the slotted part 1 by a first angle, the steps 11 on both sides of the slotted part 1 will stop the edge of the first side plate 221 and the second side plate 222 away from the roller 21, so that the first side plate 221 and the second side plate 222 cannot continue to rotate relative to the slotted part 1. In this state, the roller 21 has been adjusted to the maximum height or the minimum height.

[0044] In one embodiment, reference is made to Figure 2 , Figure 4 as well as Figure 9The anti-jump wheel also includes a slotted screw 5. The bottom edge of the slotted component 1 has a downwardly extending slotted hole 103. The slotted screw 5 passes through the slotted hole 103 and is used to thread it onto the frame of the fan-shaped material to fix the slotted component 1 to the frame of the fan-shaped material. In a specific implementation, the anti-jump wheel is also composed of a slotted screw 5. A slotted hole 103 is provided at the bottom edge of the slotted component 1. The slotted hole 103 extends downwardly at the bottom edge of the slotted component 1. The slotted screw 5 has a relatively long overall length. The slotted screw 5 passes through the slotted hole 103 and is reserved for a certain length. In practical applications, the slotted screw 5 passes through the slotted hole 103 to thread it onto the frame of the fan-shaped material, thereby fixing the slotted component 1 to the frame of the fan-shaped material, realizing the installation of the anti-jump wheel and the frame of the fan-shaped material. When disassembling the anti-jump wheel, the slotted screw 5 can be rotated with a tool, which is very convenient.

[0045] The anti-jumping wheel provided in this application embodiment has an adjustment component on the slotted part for transmission connection with the fixed bracket of the pulley assembly. The adjustment component and the slotted part rotate together to drive the fixed bracket to rotate around the slotted part, thereby realizing the lifting and lowering adjustment of the roller. A buffer is provided between the adjustment component and the slotted part to provide elastic buffering. The overall structure is simple and can better bear force, and has a better anti-jumping effect.

[0046] This utility model embodiment also provides a door and window assembly. The door and window assembly includes the anti-jump roller described in the above embodiment. The door and window assembly can be a sliding door assembly or a sliding window assembly. The anti-jump roller reduces jumping caused by movement or external forces, improving stability. Since the specific structure of the anti-jump roller has been described in detail in the preceding description, it will not be repeated here for the sake of brevity.

[0047] The door and window components in this embodiment, due to the use of the anti-jumping wheels provided in the above embodiments, have improved stability and a longer service life during use.

[0048] The above description is merely a specific embodiment of this utility model, but the protection scope of this utility model is not limited thereto. Any person skilled in the art can easily conceive of various equivalent modifications or substitutions within the technical scope disclosed in this utility model, and these modifications or substitutions should all be covered within the protection scope of this utility model. Therefore, the protection scope of this utility model should be determined by the scope of the claims.

Claims

1. An anti-jumping wheel for mounting to the frame of a fan profile, characterized in that, include: Through slots are used to fix the fan-shaped profile to the frame. The pulley assembly includes a roller and a fixed bracket, one end of which is rotatably connected to the through-groove member, and the other end of which is rotatably connected to the roller; An adjustment component is provided on the slotted member and is throttle-connected to the fixed bracket. It is used to cooperate with the slotted member to rotate so as to drive the fixed bracket to rotate around the slotted member, so as to drive the roller to rise or fall. A buffer element is disposed between the adjustment component and the slotted component to provide elastic buffering for the adjustment component.

2. The anti-jump wheel according to claim 1, characterized in that, The adjusting assembly includes a bolt and a nut. The inner side of the slotted part is provided with a laterally extending adjusting channel. The buffer is disposed in the adjusting channel. The nut is connected to the fixed bracket. One end of the bolt is rotatably disposed in the adjusting channel and connected to the buffer, and the other end is threadedly connected to the nut. The bolt is used to rotate and drive the nut to move along the axial direction of the bolt, thereby driving the fixed bracket to rotate around the slotted part.

3. The anti-jumping wheel according to claim 2, characterized in that, The buffer is a spring sheet, which is located at the rear end of the adjustment channel, and the bolt is located at one end of the adjustment channel and abuts against the spring sheet.

4. The anti-jumping wheel according to claim 3, characterized in that, The slotted component has an adjustment hole with a diameter smaller than that of the adjustment channel at the rear end of the adjustment channel. The rear end of the adjustment channel extends directly to the outside of the slotted component through the adjustment hole. The spring plate stops at the edge of the adjustment hole. One end of the bolt located inside the adjustment channel has an adjustment part. The adjustment part is exposed on the outside of the slotted component through the adjustment hole. The adjustment part is used to rotate the bolt with the help of a tool.

5. The anti-jump wheel according to any one of claims 2-4, characterized in that, The fixed bracket includes a first side plate and a second side plate spaced apart from each other. One end of the first side plate and the second side plate are rotatably connected to the opposite sides of the slotted member. The roller is rotatably disposed between the ends of the first side plate and the second side plate away from the slotted member. The nut is connected between the first side plate and the second side plate.

6. The anti-jumping wheel according to claim 5, characterized in that, Both the first and second side plates have connecting holes, and the slotted member has protrusions on opposite sides. The slotted member passes through the protrusions into the connecting holes to hinge with the first and second side plates.

7. The anti-jump wheel according to claim 5, characterized in that, Both the first side plate and the second side plate are provided with strip-shaped openings. The strip-shaped openings on the first side plate and the second side plate are aligned and overlapped. The nut piece passes through the strip-shaped openings and is movable between the two ends of the strip-shaped openings that are far apart from each other.

8. The anti-jumping wheel according to claim 6, characterized in that, The slotted member has stepped portions on both sides that are hinged to the first side plate and the second side plate. When the first side plate and the second side plate rotate relative to the slotted member by a first angle, the stepped portions stop the edges of the first side plate and the second side plate away from the roller.

9. The anti-jump wheel according to any one of claims 1-4, characterized in that, The anti-jump wheel also includes a slotted screw. The bottom edge of the slotted member has a slotted hole that extends downward at an angle. The slotted screw passes through the slotted hole and is used to thread it to the frame of the fan profile to fix the slotted member to the frame of the fan profile.

10. A door and window assembly, characterized in that, Including the anti-jump wheel as described in any one of claims 1-9.

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