Low-noise transmission rod

Abstract

Low-noise transmission rod configured for mounting in a groove of a profile, comprising: a transmission rod base and a buffer base, the buffer base being made of plastic, the transmission rod base having a mounting groove, the buffer base being mounted in the mounting groove, a side of the buffer base facing away from the mounting groove having a first projection, opposite ends of the buffer base extending out of the mounting groove and forming two second projections, a side of the buffer base facing away from the first projection having two third projections, the two third projections being adjacent to opposite ends of the buffer base, the transmission rod base being positioned between the two third projections, the first projection, the two second projections and the two third projections enabling,that the transmission rod base can be suspended in the groove, and the transmission rod base is spaced away from a side wall of the groove.

Description

Technical area

[0001] The present invention relates to accessories for doors and windows, in particular to a low-noise transmission rod. background

[0002] In the technical field of doors and windows, transmission rods are a common component configured to drive the opening and closing operation of doors and windows. For the sake of user comfort, products with better quiet operation are generally selected. However, conventional transmission rods tend to generate noise due to metal-on-metal friction during the opening and closing process, which not only affects the user comfort of doors and windows but may also affect the surrounding environment. To solve the above-mentioned problems, a damping mechanism is provided on the transmission rod. The damping mechanism typically includes a damping spring, a damping pad, etc., which can reduce noise by absorbing the vibration of the transmission rod during operation.However, the damping mechanism can only reduce the noise to a certain extent and cannot eliminate it completely. Brief description of the invention

[0003] It is an object of the present invention to provide a low-noise transmission rod to solve a technical problem according to which prior art transmission rods generate noise due to friction between metal and metal during the opening and closing process, which noise may impair the operating comfort of doors and windows and may also affect the environment.

[0004] A low-noise transmission rod is provided, which is configured to be mounted in a groove of a profile. The low-noise transmission rod comprises a transmission rod base and a buffer base.The buffer base is made of plastic, the transmission rod base is provided with a mounting groove, the buffer base is mounted in the mounting groove, a side of the buffer base remote from the mounting groove is provided with a first projection, opposite ends of the buffer base extend out of the mounting groove and form two second projections, a side of the buffer base remote from the first projection is provided with two third projections, the two third projections are arranged adjacent to opposite ends of the buffer base, the transmission rod base is arranged between the two third projections, and the first projection, the two second projections and the two third projections allow the transmission rod base to be suspended in the groove, and the transmission rod base is spaced from a side wall of the groove.

[0005] In one of the embodiments, the first projection has two arcuate arms each having the shape of an arched bridge, and a central portion of each arcuate arm projects away from the transmission rod base.

[0006] In one of the embodiments, one end of each second projection is provided with a convex curved surface, and a central portion of the convex curved surface protrudes from a side edge of the transmission rod base.

[0007] In one of the embodiments, the distance between the upper portions of the two convex curved surfaces of the two second projections is 20.5 mm and the width of the groove is 20 mm.

[0008] In one of the embodiments, the third projection is provided on the second projection and configured to contact the side wall of the groove.

[0009] In one of the embodiments, the distance between an upper portion of the first projection and a lower surface of the third projection is 3 mm and the height of the groove is 3 mm.

[0010] In one of the embodiments, the transmission rod base has a connecting element provided in the mounting groove, and the connecting element is connected to the buffer base so that the buffer base is mounted in the mounting groove.

[0011] In one of the embodiments, the connecting member is a connecting shaft, a shaft hole corresponding to the connecting shaft is formed in the buffer base, and the connecting shaft is press-fitted in the shaft hole to fix the buffer base to the transmission rod base.

[0012] In one of the embodiments, two buffer bases and two mounting grooves are provided and the two buffer bases are spaced apart from each other in the two mounting grooves.

[0013] In one of the embodiments, a locking point cover and a locking point shaft are connected to the transmission rod base, wherein the locking point cover and the locking point shaft are configured to be connected to a locking block of the profile, the locking point cover is connected to one end of the locking point shaft, and an end of the locking point shaft facing away from the locking point cover extends through the transmission rod base and is fixed to the transmission rod base by rivets.

[0014] The above technical solution(s) of the low-noise transmission rod provided by the embodiment of the present invention has / have at least one of the following technical effects. According to the low-noise transmission rod provided by the embodiment of the present invention, the first protrusion and the third protrusion cooperatively enable the transmission rod base to be suspended in an up-and-down direction and spaced from the side wall of the groove, and the second protrusion allows a left side and a right side of the transmission rod base to be spaced from the side wall of the groove. In this way, the transmission rod base does not come into contact with the side wall of the groove, but the buffer base comes into contact with the side wall of the groove.Since the buffer base is made of plastic, the friction between metal and metal becomes friction between plastic and metal, which effectively reduces the noise during the use of the transmission rod and solves the problem that the noise of the transmission rod is relatively loud during the opening and closing process. Short description of the drawings

[0015] To clarify the technical solutions in the embodiments of the present invention or in the prior art, the accompanying drawings are briefly presented below to describe the embodiments or the prior art. The accompanying drawings, to which reference is made in the following description, obviously show only some embodiments of the present invention, and those skilled in the art can derive other embodiments from the accompanying drawings without resorting to an inventive step. Fig. 1 shows a perspective view of a low-noise transmission rod according to an embodiment of the present invention; Fig. 2 resembles Fig. 1, but is shown from a different angle; Fig. 3 shows an exploded view of the low noise transmission rod of Fig. 2; Fig. 4 shows a top view of the low-noise transmission rod of Fig. 1; Fig. 5 shows a perspective view of a Fig. 1 buffer base; Fig. 6 shows a side view of the buffer base of Fig. 5; Fig. Figure 7 shows a schematic view of the low noise transmission rod mounted in a groove of Fig. 1; and Fig. Figure 8 shows an enlarged view of a section A in Fig. 7. Reference symbol:

[0016] 10. Transmission rod base; 11. Mounting groove; 20. Buffer base; 21. First projection; 22. Second projection; 23. Third projection; 24. Shaft hole; 30. Connecting element; 40. Locking point cover; 50. Locking point shaft; 211. Arc-shaped curved surface; 221. Convex curved surface; 300. Profile; 310. Groove. Detailed description of the embodiments

[0017] Embodiments of the present invention will now be described in detail, examples of which are illustrated in the accompanying drawings. The same or similar reference numerals indicate the same or similar elements or elements with the same or similar functions throughout the specification. The following with reference to the Fig. The embodiments described in Figures 1 to 8 are exemplary and are intended to illustrate embodiments of the present invention and are not intended to limit the present invention.

[0018] In describing the present invention, it should be understood that the terms "center," "longitudinal," "transverse," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inside," "outside," "clockwise," "counterclockwise," "axial," "radial," and "circumferential" are based on the azimuths or positional relationships illustrated in the accompanying drawings. These terms are merely used to simplify the description of the present invention and are not intended to indicate or imply that the specified devices or elements must have the specific azimuths or be constructed or operated in the specific azimuths, so such terms should not be construed as limitations on the present invention.

[0019] Furthermore, the terms "first" and "second" are used for descriptive purposes only and are not intended to indicate or imply a relative importance or to imply a number of technical features. Thus, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. In the description of the present invention, "a plurality of" means at least two, such as two, three, etc., unless expressly and specifically defined otherwise.

[0020] In the present invention, the terms "assemble," "connect," "couple," "fix," and the like should be interpreted broadly unless expressly stated otherwise and the term is limited. For example, the terms may mean fixed connection, detachable connection, or integrated. The terms may mean a mechanical connection or an electrical connection. The terms may mean a direct connection or an indirect connection via an intermediate medium. The terms may mean a connection within two elements or an interaction relationship between two elements, unless expressly stated otherwise. Those skilled in the art should be aware of the specific meaning of the above-mentioned terms in the present invention according to the specific situation.

[0021] In one embodiment of the present invention, as shown in the Fig. 1 to 8, a low-noise transmission rod is provided, which is configured to be mounted in a groove 310 of a profile 300 and connected to a locking block of the profile 300. The low-noise transmission rod comprises a transmission rod base 10 and a buffer base 20. The transmission rod base 10 has a mounting groove 11. The buffer base 20 is mounted in the mounting groove 11, and opposite ends of the buffer base 20 extend out of the mounting groove 11. The buffer base 20 may be made of plastic. A side of the buffer base 20 facing away from the mounting groove 11 has a first projection 21, and the first projection 21 is in contact with a side wall of the groove 310. The opposite ends of the buffer base 20 extend out of the mounting groove 11 and form two second projections 22. Both sides of each second projection 22 are in contact with the side wall of the groove 310.A side of the buffer base 20 facing away from the first projection 21 has two third projections 23, and the two third projections 23 are arranged adjacent to opposite ends of the buffer base 20. The transmission rod base 10 is arranged between the two third projections 23. The two third projections 23 are in contact with the side wall of the groove 310. The first projection 21, the second projection 22, and the third projection 23 are in contact with the side wall of the groove 310, so that the transmission rod base 10 is suspended in the groove 310, and the transmission rod base 10 is spaced from the side wall of the groove 310.

[0022] Specifically, the first protrusion 21 and the third protrusion 23 cooperate to allow the transmission rod base 10 to be suspended in an up-and-down direction and spaced from the side wall of the groove 310, and the second protrusion 22 allows a left side and a right side of the transmission rod base 10 to be spaced from the side wall of the groove 310. In this way, instead of the transmission rod base 10 coming into contact with the side wall of the groove 310, the buffer base 20 comes into contact with the side wall of the groove 310. Since the buffer base 20 is made of plastic, friction between metal and metal becomes friction between plastic and metal, effectively reducing noise during use of the transmission rod and solving the problem that the noise of the transmission rod is relatively loud during opening and closing.

[0023] In this embodiment, as shown in the Fig. As shown in Figures 2 to 8, the first protrusion 21 includes two arcuate arms, each in the shape of an arcuate bridge. A central portion of each arcuate arm protrudes in a direction away from the transmission rod base 10. Specifically, an outer surface of the arcuate arm is an arcuate curved surface 211, and an upper portion of the arcuate arm contacts the side wall of the groove 310 to reduce friction between the buffer base 20 and the side wall of the groove 310, thereby reducing noise.

[0024] In this embodiment, as shown in the Fig. 1 to 5 and 7 to 8, one end of each second projection 22 has a convex curved surface 221, and a central portion of the convex curved surface 221 protrudes from a side edge of the transmission rod base 10. Specifically, an upper portion of the convex curved surface 221 is in contact with the side wall of the groove 310 to reduce friction between the buffer base 20 and the side wall of the groove 310, thereby reducing noise.

[0025] In this embodiment, as in Fig. 4, Fig. 7 and Fig. As shown in Fig. 8, a distance between the upper portions of the two convex curved surfaces 221 of the two second protrusions 22 is 20.5 mm, and the width of the groove 310 is 20 mm. Specifically, a maximum width of the buffer base 20 is 20.5 mm, and the width of the groove 310 is 20 mm, so that the convex curved surfaces 221 of the two second protrusions 22 are pressed by the side walls of the groove 310 to prevent the transmission rod base 10 from contacting the side wall of the groove 310 and to change the metal-to-metal friction into metal-to-plastic friction.

[0026] In this embodiment, as in Fig. 5, Fig. 7 and Fig. As shown in Fig. 8, the third protrusion 23 is formed on the second protrusion 22 and is in contact with the side wall of the groove 310. Specifically, the third protrusion 23 is formed on the side of each of the two second protrusions 22 opposite the first protrusion 21. The third protrusion 23 is in contact with the side wall of the groove 310, so that a side of the transmission rod base 10 corresponding to the third protrusion 23 is spaced from the side wall of the groove 310.

[0027] In this embodiment, as in Fig. 6, Fig. 7 and Fig. As shown in Fig. 8, the distance between an upper portion of the first protrusion 21 and a lower surface of the third protrusion 23 is 3 mm, and the height of the groove 310 is 3 mm. Specifically, a thickness of the buffer base 20 is 3 mm, and the height of the groove 310 is 3 mm, so that the buffer base 20 is tightly fitted into the groove 310 and the transmission rod base 10 is suspended.

[0028] In this embodiment, as in Fig. As shown in Figure 3, the transmission rod base 10 includes a connecting member 30 provided in the mounting groove 11. The connecting member 30 is connected to the buffer base 20 so that the buffer base 20 is mounted in the mounting groove 11. Specifically, the connecting member 30 is configured to fix the buffer base 20 to the transmission rod base 10 to prevent the buffer base 20 from detaching from the transmission rod base 10.

[0029] In this embodiment, as in Fig. As shown in Figure 3, the connecting member 30 is a connecting shaft, and a shaft hole 24 corresponding to the connecting shaft is formed in the buffer base 20. The connecting shaft is press-fitted into the shaft hole 24 to fix the buffer base 20 to the transmission rod base 10. Specifically, two connecting shafts are provided in the mounting groove 11. The two connecting shafts are arranged in parallel and spaced from each other, and the two connecting shafts extend perpendicular to the transmission rod base 10. The connecting shaft extends through the corresponding shaft hole 24 in a press-fit manner to connect the transmission rod base 10 to the buffer base 20.

[0030] In this embodiment, as shown in the Fig. As shown in Figures 1 to 4, two buffer bases 20 and two mounting grooves 11 are provided, and the two buffer bases 20 are spaced apart from each other in the two mounting grooves 11. Specifically, two mounting grooves 11 are provided that are spaced apart from each other on the transmission rod base 10. The two buffer bases 20 are in contact with the side wall of the groove 310, so that friction between the plastic and metal is maintained, thereby reducing noise.

[0031] In this embodiment, as shown in the Fig.As shown in Figures 1 to 4, a locking point cover 40 and a locking point shaft 50 are connected to the transmission rod base 10. The locking point cover 40 and the locking point shaft 50 are configured to be connected to the locking block of the profile. The locking point cover 40 is connected to one end of the locking point shaft 50. An end of the locking point shaft 50 remote from the locking point cover 40 extends through the transmission rod base 10 and is fixed to the transmission rod base 10 by rivets.

[0032] The above describes only specific embodiments of the present invention, but these are not intended to limit the scope of the present invention. Any modification or substitution apparent to a person skilled in the art within the technical scope disclosed in the present invention is within the scope of the present invention.

Claims

[1] Low-noise transmission rod configured to be mounted in a groove of a profile, comprising: a transmission rod base and a buffer base, wherein the buffer base is made of plastic, the transmission rod base is provided with a mounting groove, the buffer base is mounted in the mounting groove, a side of the buffer base facing away from the mounting groove is provided with a first projection, opposite ends of the buffer base extend out of the mounting groove and form two second projections, a side of the buffer base facing away from the first projection is provided with two third projections, the two third projections are arranged adjacent to opposite ends of the buffer base, the transmission rod base is arranged between the two third projections, the first projection, the two second projections and the two third projections enable,that the transmission rod base can be suspended in the groove, and the transmission rod base is spaced from a side wall of the groove. [2] The low noise transmission rod according to claim 1, wherein the first projection has two arcuate arms each having an arched bridge shape, and a center portion of each arcuate arm projects away from the transmission rod base. [3] The low noise transmission rod according to claim 1, wherein one end of each second projection has a convex curved surface, and a central portion of the convex curved surface protrudes from a side edge of the transmission rod base. [4] The low noise transmission rod according to claim 3, wherein a distance between upper portions of two convex curved surfaces of the two second projections is 20.5 mm and a width of the groove is 20 mm. [5] The low noise transmission rod according to claim 1, wherein the third projection is provided on the second projection and configured to contact the side wall of the groove. [6] The low noise transmission rod according to claim 1, wherein a distance between an upper portion of the first projection and a lower surface of the third projection is 3 mm and a height of the groove is 3 mm. [7] The low noise transmission rod according to claim 1, wherein the transmission rod base has a connecting member provided in the mounting groove, and the connecting member is connected to the buffer base so that the buffer base is mounted in the mounting groove. [8] The low-noise transmission rod according to claim 7, wherein the connecting member is a connecting shaft, a shaft hole corresponding to the connecting shaft is formed in the buffer base, and the connecting shaft is press-fitted into the shaft hole to fix the buffer base to the transmission rod base. [9] A low-noise transmission rod according to claim 1, wherein two buffer bases and two mounting grooves are provided, and the two buffer bases are spaced apart from each other in the two mounting grooves. [10] The low-noise transmission rod according to claim 1, wherein a locking point cover and a locking point shaft are connected to the transmission rod base, the locking point cover and the locking point shaft are configured to be connected to a locking block of the profile, the locking point cover is connected to one end of the locking point shaft, and an end of the locking point shaft remote from the locking point cover extends through the transmission rod base and is fixed to the transmission rod base by rivets.

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