Fan body bottom bearing transmission device and door and window

Abstract

The utility model discloses a fan body bottom bearing transmission device which comprises a transmission hinge, a bearing shaft, a shaft sleeve and an adjusting assembly. One end of the transmission hinge is rotationally connected with the sliding seat at the bottom edge of the frame body, and the other end of the transmission hinge is rotationally connected with the bearing shaft; the shaft sleeve is rotatably arranged on the outer periphery of the bearing shaft in a sleeving mode, and the shaft sleeve and the bearing shaft can move up and down synchronously. One end of the transmission hinge is provided with a rotary connecting part, the rotary connecting part sleeves the outer periphery of the shaft sleeve, the transmission hinge is provided with a mounting cavity, the adjusting assembly is arranged in the mounting cavity, and the adjusting assembly is in transmission connection with the shaft sleeve. When the fan body sinks and extrudes the top face of the transmission hinge, the adjusting assembly can be operated to enable the shaft sleeve to move and adjust the height of the bearing shaft, the top end of the bearing shaft is fixedly connected with the fixing piece, and therefore the fixing piece and the fan body connected with the fixing piece are driven to be lifted, the bottom edge of the fan body does not extrude the transmission hinge or the frame any more, and the movement of the fan body can recover to be smooth.

Description

Technical Field

[0001] The utility model belongs to the technical field of doors and windows, and particularly relates to a fan body bottom load-bearing transmission device and a door and window. Background Art

[0002] A suspended sliding window is a type of window that can be pushed and pulled to open, or the window sash can be pushed outward or inward away from the window frame and then suspended outward or inward. Since the window sash needs to be pushed away from the window frame, a bottom load-bearing transmission device with a special structure is required. The bottom load-bearing transmission device not only connects the window sash to the window frame, but also has a rotatable function. The bottom load-bearing transmission device mainly includes a transmission hinge and a load-bearing shaft. One end of the transmission hinge is rotatably connected to the sliding seat at the bottom of the frame, and the other end is rotatably connected to the load-bearing shaft.

[0003] Because the load-bearing shaft is under the long-term heavy pressure of the door and window body, the load-bearing shaft will sink relative to the transmission hinge together with the fan body. The bottom edge of the fan body will be squeezed to the top surface of the transmission hinge or the frame to generate friction. This friction will affect the rotation of the load-bearing transmission device, thereby making it difficult for the fan body to move. Utility Model Content

[0004] The purpose of the utility model is to provide a fan bottom load-bearing transmission device and a door and window, which can lift the fan body by adjusting the height position of the load-bearing shaft relative to the transmission hinge after the fan body sinks, so as to avoid the bottom edge of the fan body being squeezed onto the transmission hinge or frame, affecting the movement of the fan body.

[0005] In order to achieve the above-mentioned purpose, the first aspect of the utility model provides a fan body bottom load-bearing transmission device, including a transmission hinge, a load-bearing shaft, a shaft sleeve and an adjustment assembly; one end of the transmission hinge is rotatably connected to a sliding seat at the bottom edge of the frame body, and the other end is rotatably connected to the load-bearing shaft, and the top end of the load-bearing shaft is fixedly connected to a fixing piece at the bottom edge of the fan body;

[0006] The shaft sleeve is rotatably mounted on the outer periphery of the load-bearing shaft and can move up and down synchronously with the load-bearing shaft;

[0007] One end of the transmission hinge has a rotating connection part, and the rotating connection part is sleeved on the outer periphery of the sleeve. The transmission hinge is provided with a mounting cavity, and the adjustment component is arranged in the mounting cavity. The adjustment component is transmission-connected to the sleeve, and the height of the load-bearing shaft can be adjusted by moving the sleeve.

[0008] Further, the adjustment assembly includes a push rod and an adjustment screw, the shaft sleeve is provided with a bayonet, and one side of the installation cavity is provided with a communication port connected to the inner hole of the rotating connection part; one end of the push rod passes through the communication port and extends into the bayonet of the shaft sleeve, and the other end extends into the installation cavity;

[0009] An internal thread is provided on the inner wall of the installation cavity, and the adjusting screw is threadedly connected to the installation cavity; the installation cavity has an operating port for an operating tool to be inserted into, and the push rod can be pushed to move in the vertical direction by turning the adjusting screw, and the push rod can push the sleeve and the load-bearing shaft to move in the vertical direction when moving.

[0010] In some preferred embodiments, the transmission hinge further has a transmission arm, the rotating connection portion is fixedly connected to one end of the transmission arm, and the installation cavity is arranged in the transmission arm.

[0011] Furthermore, the bottom surface of the transmission arm is exposed outside the operating opening.

[0012] In some preferred embodiments, the installation cavity has a push rod accommodating space on the side away from the connecting port, and the push rod accommodating space is connected to the installation cavity; the push rod has a pushing part and an anti-warping part, the pushing part is located above the adjusting screw, and the anti-warping part is located in the push rod accommodating space and close to the side wall of the push rod accommodating space; one end of the pushing part extends into the bayonet, and the other end is fixedly connected to the anti-warping part.

[0013] Furthermore, the push rod is L-shaped as a whole.

[0014] Furthermore, the shape and size of the cross section of the anti-warping portion match the shape and size of the cross section of the push rod accommodating space.

[0015] In some preferred embodiments, the above-mentioned fan body bottom load-bearing transmission device also includes a supporting ring for supporting the fixing part, the supporting ring fixing sleeve is arranged at the top end of the load-bearing shaft, the shaft sleeve is located below the supporting ring, and the top end of the inner hole of the shaft sleeve is provided with an upper annular step, the upper annular step and the supporting ring together constitute an upper steel ball accommodating space, and a plurality of steel balls are embedded in the upper steel ball accommodating space.

[0016] Furthermore, a first annular groove is provided on the bottom end wall surface of the inner hole of the sleeve, and a second annular groove is provided on the outer periphery of the bottom end of the load-bearing shaft. The first groove and the second groove together constitute a lower steel ball accommodating space, and a plurality of steel balls are embedded in the lower steel ball accommodating space.

[0017] The second aspect of the utility model provides a door and window, including a fan body and a frame body, wherein a fixing piece is provided at the bottom edge of the fan body, and a sliding seat is provided at the bottom edge of the frame body, and is characterized in that the fixing piece and the sliding seat are connected via the above-mentioned load-bearing transmission device at the bottom of the fan body.

[0018] Compared with the prior art, the utility model has the following beneficial effects:

[0019] The utility model provides a load-bearing transmission device for the bottom of a fan body, including a transmission hinge, a load-bearing shaft, a sleeve and an adjustment component; the sleeve is rotatably mounted on the outer periphery of the load-bearing shaft and is transmission-connected to the load-bearing shaft, and the two can move up and down in steps. The rotating connection part at one end of the transmission hinge is sleeved on the outer periphery of the sleeve, and the transmission hinge is provided with a mounting cavity, the adjustment component is arranged in the mounting cavity, and the adjustment component is transmission-connected to the sleeve. When the fan body sinks and is squeezed to the top surface of the transmission hinge, the adjustment component can be operated to move the sleeve to adjust the height of the load-bearing shaft. Since the top end of the load-bearing shaft is fixedly connected to the fixing part, the fan body is also driven to be lifted, so that the bottom edge of the fan body no longer squeezes the transmission hinge or the frame, and the movement of the fan body can be restored to be smooth. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 is a schematic structural diagram of the fan body bottom load-bearing transmission device provided in this embodiment;

[0021] Figure 2 is a schematic diagram of the exploded structure of the load-bearing transmission device at the bottom of the fan body provided in this embodiment;

[0022] Figure 3 is a schematic structural diagram of another angle of the fan body bottom load-bearing transmission device provided in this embodiment;

[0023] Figure 4 It is a schematic diagram of the connection relationship between the load-bearing transmission device, the sliding seat and the fixing member at the bottom of the fan body provided in this embodiment;

[0024] Figure 5 is a schematic structural diagram of the transmission hinge provided in this embodiment;

[0025] Figure 6 It is a schematic cross-sectional structure diagram of the load-bearing transmission device, sliding seat and fixing member at the bottom of the fan body provided in this embodiment.

[0026] Description of reference numerals:

[0027] 1. Transmission hinge; 11. Transmission arm; 111. Installation cavity; 112. Communication port; 113. Push rod accommodating space; 12. Rotating connection part; 2. Load-bearing shaft; 21. Second groove; 3. Bushing; 31. Bayonet; 32. Upper annular step; 33. First groove; 4. Push rod; 41. Pushing part; 42. Anti-warping part; 5. Adjusting screw; 6. Support ring; 7. Steel ball; 200. Sliding seat; 300. Fixing part. DETAILED DESCRIPTION

[0028] Because the load-bearing shaft of the load-bearing transmission device at the bottom of the fan body is under the long-term weight of the door and window fan body, the load-bearing shaft and the fan body will sink relative to the transmission hinge. The bottom edge of the fan body will squeeze the top surface of the transmission hinge to generate friction. This friction will affect the rotation of the load-bearing transmission device and make it difficult for the fan body to move.

[0029] In order to solve the above technical problems, the utility model provides a load-bearing transmission device at the bottom of the fan body, which can lift the fan body by adjusting the height position of the load-bearing shaft relative to the transmission hinge after the fan body sinks, so as to avoid the bottom edge of the fan body being squeezed onto the transmission hinge and affecting the movement of the fan body.

[0030] In order to make the purpose, technical solution and advantages of the utility model more clear, the utility model is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the utility model and are not used to limit the utility model.

[0031] Please refer to Figures 1 to 3 , shows a fan body bottom load-bearing transmission device provided in this embodiment, including a transmission hinge 1, a load-bearing shaft 2, a shaft sleeve 3 and an adjustment component, please refer to Figure 4 The transmission hinge 1 has a transmission arm 11, one end of which is rotatably connected to the sliding seat 200 at the bottom of the frame, and the other end of the transmission arm 1 is fixedly connected to a hollow rotation connection part 12. The top of the bearing shaft 2 is fixedly connected to the fixing member 300 at the bottom of the fan body, and the sleeve 3 is rotatably sleeved on the outer periphery of the bearing shaft 2 and is transmission-connected to the bearing shaft 2 so that the sleeve 3 can move up and down synchronously with the bearing shaft 2; the rotation connection part 12 is sleeved on the outer periphery of the sleeve 3.

[0032] Please refer to Figure 2 and Figure 5 The transmission arm 11 is provided with an installation cavity 111, and one side of the installation cavity 111 is provided with a communication port 112 that communicates with the inner hole of the rotating connection part 12. The adjustment component is arranged in the installation cavity 111, and the adjustment component is transmission-connected with the shaft sleeve 3, and the height of the bearing shaft 2 can be adjusted by moving the shaft sleeve 3.

[0033] Specifically, the adjustment assembly includes a push rod 4 and an adjustment screw 5 ; a bayonet 31 is provided on the sleeve 3 , one end of the push rod 4 passes through the connecting port 112 and extends into the bayonet 31 of the sleeve 3 , and the other end extends into the installation cavity 111 .

[0034] An internal thread is provided on the inner wall of the installation cavity 111, and the adjusting screw 5 is threadedly connected to the installation cavity 111; the installation cavity 111 has an operating port for an operating tool to be inserted into, and the adjusting screw 5 is turned by the operating tool, so that the adjusting screw 5 can push the push rod 4 to move in the vertical direction, and the push rod 4 can push the sleeve 3 and the load-bearing shaft 2 to move in the vertical direction when moving.

[0035] When the fan body sinks and squeezes the top surface of the transmission hinge 1 or the frame, the push rod 4 can be pushed to move in the vertical direction by turning the adjusting screw 5. Since the push rod 4 is inserted into the bayonet 31, the push rod 4 can push the sleeve 3 and the load-bearing shaft 2 connected to the sleeve 3 to move upward when moving. Since the top of the load-bearing shaft 2 is fixedly connected to the fixing member 300, the fixing member 300 and the fan body connected thereto are also driven and lifted, so that the bottom edge of the fan body no longer squeezes the transmission hinge 1 or the frame, and the movement of the fan body can be restored to smoothness.

[0036] Preferably, the bottom surface of the transmission arm 11 is exposed outside the operation opening, and since there is no structure blocking the bottom of the transmission arm 11, it is easy to operate.

[0037] For further information, please refer to Figure 3 and Figure 5 The side of the installation cavity 111 away from the communication port 112 has a push rod accommodating space 113, and the push rod accommodating space 113 is connected to the installation cavity 111. The push rod 4 has a pushing portion 41 and an anti-warping portion 42. Preferably, as Figure 2 As shown, the push portion 41 and the anti-warping portion 42 are perpendicular to each other, and the push rod 4 is L-shaped as a whole. The push portion 41 is located above the adjusting screw 5, and the anti-warping portion 42 is located in the push rod accommodating space 113 and is close to the side wall of the push rod accommodating space 113; one end of the push portion 41 extends into the bayonet 31, and the other end is fixedly connected to the anti-warping portion 42. When the push rod 4 is pushed, the sleeve 3 will generate a downward reaction force on the push rod 4, and the push rod 4 may be tilted. Through the above structural design, the side wall of the push rod accommodating space 113 will limit and resist the anti-warping portion 42, and can prevent the push portion 41 located at the other end from being tilted. Preferably, in order to make the anti-warping portion 42 play the best limiting and resisting role, and to prevent the push rod 4 from shaking when moving, the cross-sectional shape and size of the anti-warping portion 42 match the cross-sectional shape and size of the push rod accommodating space 113, that is, the anti-warping portion 42 is just embedded in the push rod accommodating space 113.

[0038] For further information, please refer to Figure 6 The fan body bottom load-bearing transmission device also includes a support ring 6 for supporting a fixing member 300 at the bottom edge of the fan body. The support ring 6 is fixedly sleeved at the top of the load-bearing shaft 2, and the sleeve 3 is located below the support ring 6, so that the load-bearing shaft 2 and the sleeve 3 jointly bear the gravity of the fan body.

[0039] Furthermore, an upper annular step 32 is provided at the top of the inner hole of the sleeve 3, and the upper annular step 32 and the supporting ring 6 together constitute an upper steel ball accommodating space, in which a plurality of steel balls 7 are embedded. An annular first groove 33 is provided on the bottom wall of the inner hole of the sleeve 3, and an annular second groove 21 is provided on the outer periphery of the bottom end of the load-bearing shaft 2, and the first groove 33 and the second groove 21 together constitute a lower steel ball accommodating space, in which a plurality of steel balls 7 are embedded. Through the above structural design, the sleeve 3 can rotate horizontally relative to the load-bearing shaft 2, and at the same time, the steel ball 7 forms a buckling relationship with the upper steel ball accommodating space and the lower steel ball accommodating space, so that the sleeve 3 and the load-bearing shaft 2 are connected in the vertical direction by transmission, so that when the push rod 4 pushes the sleeve 3 to move, the load-bearing shaft 2 and the fan body thereon can move in the vertical direction together with the sleeve 3.

[0040] Please refer to Figure 4 The present embodiment further provides a door and window, comprising a frame and a fan body, wherein a sliding seat 200 is provided at the bottom of the frame body, a fixing member 300 is provided at the bottom of the fan body, and the sliding seat 200 and the fixing member 300 are connected via the above-mentioned fan body bottom bearing transmission device. The door and window of the present embodiment can lift the fan body to a suitable height position by turning the adjusting screw 5 when the fan body sinks and presses the fan body bottom bearing transmission device or the frame body.

[0041] In the description of the present utility model, it should be noted that the terms "center", "upper", "lower", "left", "right", "front", "rear", "vertical", "horizontal", "inside", "outside" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the drawings, and are only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific position, be constructed and operated in a specific position, and therefore cannot be understood as a limitation on the present utility model; the terms "first", "second", and "third" are only used for descriptive purposes, and cannot be understood as indicating or implying relative importance; in addition, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be directly connected, or indirectly connected through an intermediate medium, or it can be a communication between the two components. For ordinary technicians in this field, the specific meanings of the above terms in the present utility model can be understood according to specific circumstances.

[0042] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A load-bearing transmission device for the bottom of a fan body, comprising a transmission hinge and a load-bearing shaft, wherein one end of the transmission hinge is rotatably connected to a sliding seat at the bottom edge of a frame body, and the other end is rotatably connected to the load-bearing shaft, and the top end of the load-bearing shaft is fixedly connected to a fixing member at the bottom edge of the fan body; characterized in that: The fan body bottom load-bearing transmission device also includes a shaft sleeve and an adjustment component; The shaft sleeve is rotatably mounted on the outer periphery of the load-bearing shaft and can move up and down synchronously with the load-bearing shaft; One end of the transmission hinge has a rotating connection part, and the rotating connection part is sleeved on the outer periphery of the sleeve. The transmission hinge is provided with a mounting cavity, and the adjustment component is arranged in the mounting cavity. The adjustment component is transmission-connected to the sleeve, and the height of the load-bearing shaft can be adjusted by moving the sleeve.

2. The fan bottom load-bearing transmission device according to claim 1 is characterized in that: The adjustment assembly includes a push rod and an adjustment screw, the shaft sleeve is provided with a bayonet, and one side of the installation cavity is provided with a communication port connected to the inner hole of the rotating connection part; one end of the push rod passes through the communication port and extends into the bayonet of the shaft sleeve, and the other end extends into the installation cavity; An internal thread is provided on the inner wall of the installation cavity, and the adjusting screw is threadedly connected to the installation cavity; the installation cavity has an operating port for an operating tool to be inserted into, and the push rod can be pushed to move in the vertical direction by turning the adjusting screw, and the push rod can push the sleeve and the load-bearing shaft to move in the vertical direction when moving.

3. The fan body bottom load-bearing transmission device according to claim 2, characterized in that: The transmission hinge also has a transmission arm, the rotating connection portion is fixedly connected to one end of the transmission arm, and the installation cavity is arranged in the transmission arm.

4. The fan body bottom load-bearing transmission device according to claim 3 is characterized in that: The bottom surface of the transmission arm is exposed outside the operation opening.

5. The fan bottom load-bearing transmission device according to claim 2, characterized in that: The installation cavity has a push rod accommodating space on one side away from the connecting port, and the push rod accommodating space is connected to the installation cavity; the push rod has a pushing portion and an anti-warping portion, the pushing portion is located above the adjusting screw, and the anti-warping portion is located in the push rod accommodating space and close to the side wall of the push rod accommodating space; one end of the pushing portion extends into the bayonet, and the other end is fixedly connected to the anti-warping portion.

6. The fan bottom load-bearing transmission device according to claim 5, characterized in that: The push rod is L-shaped as a whole.

7. The fan body bottom load-bearing transmission device according to claim 5, characterized in that: The shape and size of the cross section of the anti-warping portion match the shape and size of the cross section of the push rod accommodating space.

8. The fan body bottom load-bearing transmission device according to claim 1, characterized in that: It also includes a supporting ring for supporting the fixing member, the supporting ring fixing sleeve is arranged at the top end of the load-bearing shaft, the shaft sleeve is located below the supporting ring, the top end of the inner hole of the shaft sleeve is provided with an upper annular step, the upper annular step and the supporting ring together constitute an upper steel ball accommodating space, and a plurality of steel balls are embedded in the upper steel ball accommodating space.

9. The fan body bottom load-bearing transmission device according to claim 1, characterized in that: A first annular groove is provided on the bottom end wall surface of the inner hole of the sleeve, and a second annular groove is provided on the outer periphery of the bottom end of the load-bearing shaft. The first groove and the second groove together constitute a lower steel ball accommodating space, and a plurality of steel balls are embedded in the lower steel ball accommodating space.

10. A door and window, comprising a fan body and a frame body, wherein a sliding seat is provided at the bottom of the frame body, characterized in that: The fan body and the sliding seat are connected via a fan body bottom load-bearing transmission device as described in any one of claims 1 to 9.

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