Support pin and adjustable hinge

Abstract

The present invention discloses a support pin, including a support pin body and a clamping block, wherein the support pin body includes a first connection part, a second connection part and a third connection part connected in sequence, wherein the diameter of the first connection part is larger than that of the second connection part, and a limiting washer is arranged between the second connection part and the third connection part, and the clamping block includes a clamp and a claw, wherein one end of the claw is connected to the clamp, and the other end is rotatably connected to the second connection part. An adjustable hinge is also disclosed, including the above-mentioned support pin, a frame mounting rod, a first support rod, a second support rod, and a fan mounting rod, wherein one end of the first support rod is hinged to the frame mounting rod, and the other end is hinged to the fan mounting rod; one end of the second support rod is hinged to the frame mounting rod and is hinged to the first support rod, and one end of the fan mounting rod is hinged to the second support rod. The above-mentioned support pin and the adjustable hinge have good stability, and can effectively solve the problem of the support pin being easy to fall off in the prior art.

Description

Technical Field

[0001] The present invention relates to the technical field of hinge equipment, and in particular to a support pin and an adjustable hinge. Background Art

[0002] Existing adjustable hinges for doors and windows usually include a frame mounting rod, a sash mounting rod, and a plurality of support rods for hingedly connecting the frame mounting rod and the sash mounting rod. Moreover, each rod is only matched by a simple axle pin, so the structure is relatively simple and the stability is poor.

[0003] The sash mounting rod is installed on the window sash and fixedly connected to the window sash. The sash mounting rod is hinged to the support rod, and the support rod is hinged to the frame mounting rod fixedly installed on the window frame, so that the window sash can be adjusted to open or close. When performing hinged installation, a pin hole is usually set at the bottom of one end of the sash mounting rod, and a corresponding pin hole is set on the support rod, so that the sash mounting rod and the support rod can be hinged together through a support pin. However, the traditional support pin has a single structure, and when it is matched with the pin hole, if it is too loose, it will affect the stability of the window sash, and the support pin is easy to fall off from the pin hole of the sash mounting rod. If it is too tight, the opening force of the window sash becomes larger, the wear of the rod and the support pin is aggravated, and the service life is affected. Summary of the invention

[0004] The object of the present invention is to provide a support pin that can be stably fixed on an adjustable hinge, thereby effectively improving the stability of the adjustable hinge and ensuring the smoothness of the adjustable hinge, making it convenient to adjust doors and windows to open or close.

[0005] In order to solve the above problems, the present invention is implemented according to the following technical solutions:

[0006] A support pin provided by the present invention comprises a support pin body and a clamping block, wherein the support pin body comprises a first connection part, a second connection part and a third connection part connected in sequence, the diameter of the first connection part is larger than that of the second connection part, a limiting washer is arranged between the second connection part and the third connection part or the maximum width of the horizontal cross-section of the third connection part is less than or equal to the diameter of the second connection part, the clamping block comprises a clamp and a claw, the clamp is provided with a fixing structure fixedly connected to an external device, one end of the claw is connected to the clamp, and the other end is rotatably connected to the second connection part.

[0007] Furthermore, the clip is integrally connected to the claw and is L-shaped as a whole.

[0008] Furthermore, the fixing structure is configured as a plurality of latch teeth.

[0009] Furthermore, a clamp bottom plate is provided at one end of the clamp close to the clamp claw.

[0010] Furthermore, the outer diameter of the first connecting portion gradually increases from both ends to the middle.

[0011] Furthermore, a limiting block is arranged at the bottom end of the third connecting portion.

[0012] An adjustable hinge, comprising the above-mentioned support pin, further comprising:

[0013] A frame mounting rod, wherein the frame mounting rod is fixedly mounted on the window frame;

[0014] a first support rod, one end of which is hinged to the frame mounting rod;

[0015] a first sliding block, the first sliding block being slidably disposed on the frame mounting rod;

[0016] a second support rod, one end of which is hinged on the first sliding block, and the second support rod is hinged to the first support rod;

[0017] A sash mounting rod, the sash mounting rod is fixedly mounted on the window sash, one end of the sash mounting rod is hinged to an end of the second support rod away from the first slider through the support pin; one end of the sash mounting rod close to the second support rod is fixedly connected to the fixing structure of the clip;

[0018] The second slider is slidably arranged on the fan mounting rod, and one end of the first support rod facing away from the frame mounting rod is hinged to the second slider.

[0019] Furthermore, a pin hole and a clamping hole are provided at the bottom of one end of the fan mounting rod on which the supporting pin is mounted, the first connecting portion of the supporting pin can be rotatably inserted in the pin hole, the clamp is inserted into and fixed in the clamping hole, and a clamping portion is provided in the clamping hole which cooperates with the fixing structure and is fixed thereto.

[0020] Furthermore, a transition hole groove is provided between the pin hole and the clamping hole, and the clamping claw is nested in the transition hole groove.

[0021] Compared with the prior art, the present invention has the following beneficial effects:

[0022] A support pin of the present invention is provided with a clamping block to clamp the support pin body, and the clamping claw of the clamping block is rotatably connected to the support pin body. Without hindering the rotation of the support pin body, the support pin body can be fixed, and the function of preventing the support pin body from falling off and shifting is played, which solves the problem of damage to door and window hinges caused by the support pin being easy to fall off or shift in the prior art.

[0023] The present invention also provides an adjustable hinge, which realizes adjustable relative movement and / or rotation between the sash mounting rod and the frame mounting rod by hinged connection between the frame mounting rod, the first support rod, the second support rod and the sash mounting rod. The sash mounting rod drives the window sash to rotate, and finally realizes that the window sash is rotatably mounted on the window frame, and the opening and closing of the window sash can be adjusted.

[0024] Preferably, the adjustable hinge further comprises the above-mentioned support pin, one end of the sash mounting rod is hinged to the second support rod through the support pin, and the end of the sash mounting rod close to the second support rod is fixedly connected to the fixing structure of the clip. The adjustable hinge using the support pin has better overall stability, and the stability of the adjustable hinge is improved while ensuring the smoothness of the adjustable hinge, thereby preventing the adjustable hinge from being damaged due to the support pin falling off the sash mounting rod. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] The specific embodiments of the present invention are further described in detail below in conjunction with the accompanying drawings, wherein:

[0026] Figure 1 It is a structural schematic diagram of a support pin according to the present invention;

[0027] Figure 2 It is a structural schematic diagram of an adjustable hinge according to the present invention;

[0028] Figure 3 is a schematic structural diagram of the fan mounting rod of the present invention;

[0029] Figure 4 It is a schematic diagram of the installation structure of an adjustable hinge according to the present invention;

[0030] In the figure:

[0031] 100-support pin; 110-support pin body; 111-first connecting part; 112-second connecting part; 113-third connecting part; 114-limiting washer; 115-limiting block; 120-block; 121-clip; 122-claw; 123-clip tooth; 124-clip base plate; 200-frame mounting rod; 210-first slider; 220-first slide groove; 300-first support rod; 400-second support rod; 500-sash mounting rod; 510-second slider; 520-second slide groove; 530-pin hole; 540-clip hole; 550-transition hole groove; 600-window frame; 700-window sash. DETAILED DESCRIPTION

[0032] In order to more clearly understand the above-mentioned objects, features and advantages of the present application, the present application is described in detail below in conjunction with the accompanying drawings and specific embodiments. It should be noted that, in the absence of conflict, the embodiments of the present application and the features in the embodiments can be combined with each other. In the following description, many specific details are set forth in order to fully understand the present application, and the described embodiments are only a part of the embodiments of the present application, rather than all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in the field without making creative work are within the scope of protection of the present application.

[0033] It should be noted that, unless otherwise specified, when a feature is referred to as being "fixed" or "connected" to another feature, it may be directly fixed or connected to the other feature, or it may be indirectly fixed or connected to the other feature. In addition, the descriptions of up, down, left, right, etc. used in the present invention are only relative to the relative positional relationship of the components of the present invention in the accompanying drawings. Unless otherwise defined, all technical and scientific terms used herein have the same meaning as those generally understood by technicians in the technical field to which this application belongs. The terms used herein in the specification of this application are only for the purpose of describing specific embodiments and are not intended to limit this application.

[0034] like Figure 1-2 As shown, a support pin 100 includes a support pin body 110 and a clamping block 120. The support pin body 110 includes a first connection part 111, a second connection part 112 and a third connection part 113 connected in sequence. The diameter of the first connection part 111 is larger than that of the second connection part 112. A limited position washer 114 is arranged between the second connection part 112 and the third connection part 113 to realize the axial positioning of the third connection part 113. The clamping block 120 includes a clamp 121 and a claw 122. The clamp 121 is provided with a fixing structure fixedly connected to an external device. The external device can be a door leaf, a window leaf or some components fixed to the door leaf or window leaf. In this embodiment, the external device is a leaf mounting rod 500. One end of the claw 122 is fixed to the clamp 121, and the other end is clamped and rotatably connected to the second connection part 112. The claw 122 is rotatably connected to the second connecting portion 112, so that the support shaft itself can also rotate around its vertical center axis without affecting its own setting in the adjustable hinge, avoiding the inconvenience of adjusting the adjustable hinge due to the block 120 fixing the support pin 100.

[0035] Furthermore, the claw 122 and the second connection part 112 are in a clamping relationship, and because the diameter of the first connection part 111 of the support pin body 110 is larger than the second connection part 112, the support pin body 110 is effectively prevented from falling off from the claw 122 under the action of gravity, thereby improving the stability of the support pin 100. In this embodiment, the maximum width of the horizontal cross section of the third connection part 113 can also be set to be less than or equal to the diameter of the second connection part 112, so that the second connection part 112 can play a role similar to the above-mentioned limiting washer 114, which is used for axial positioning of the third connection part 113. The horizontal cross-sectional shape of the third connection part 113 can be circular, flat oval, square, polygonal, etc., as long as it can be stably installed on the adjustable hinge, such design solutions all belong to the scope of protection of the present invention.

[0036] like Figure 1-4 As shown, an adjustable hinge includes the above-mentioned support pin 100, and also includes a frame mounting rod 200, a first support rod 300, a second support rod 400 and a sash mounting rod 500. The frame mounting rod 200 is fixedly mounted on the window frame 600, one end of the first support rod 300 is hinged on the frame mounting rod 200, a first slider 210 is slidably arranged on the frame mounting rod 200, one end of the second support rod 400 is hinged on the first slider 210, and the second support rod 400 is hinged to the first support rod 300, and the sash mounting rod 500 is fixedly mounted on the window sash 700, one end of the sash mounting rod 500 is hinged to an end of the second support rod 400 away from the first slider 210 through the support pin 100, and an end of the sash mounting rod 500 close to the second support rod 400 is fixedly connected to the fixing structure of the clip. A second slider 510 is slidably arranged on the sash mounting rod 500, and an end of the first support rod 300 away from the frame mounting rod 200 is hinged to the second slider 510. The frame mounting rod 200 is provided with a first slide groove 220, and the first slider 210 is slidably disposed in the first slide groove 220. The sash mounting rod 500 is provided with a second slide groove 520, and the second slider 510 is slidably disposed in the second slide groove 520. Figure 4 As shown, the opening or closing of the window sash 700 is adjusted by an adjustable hinge, and by adopting an adjustable hinge of the present invention, the stability of the window sash can be effectively improved while reducing the opening force of the window sash.

[0037] In this embodiment, a pin hole 530 and a clamp hole 540 are provided at the bottom of the fan installation rod 500, the first connection portion 111 of the support pin body 110 is rotatably inserted into the pin hole 530, the clamp 121 is inserted and fixed in the clamp hole 540, and a clamping portion that cooperates with the fixing structure of the clamp 121 is provided in the clamp hole 540, so that the clamp 121 can be firmly fixed in the clamp hole 540. In this embodiment, the clamp 121 and the claw 122 are integrally connected and are L-shaped as a whole, which ensures the overall strength of the clamp block 120, and makes the clamp 121 and the support pin body 110 arranged side by side, respectively inserted into the clamp hole 540 and the pin hole 530. A transition hole groove 550 is provided between the pin hole 530 and the clamp hole 540, and the claw 122 is provided in the transition hole groove 550, so that the entire clamp block 120 is embedded in the fan installation rod 500. In addition to this embodiment, the clip 121 and the claw 122 can also be detachably connected, which can be more conducive to the disassembly, assembly and maintenance of the adjustable hinge. Such a connection method also belongs to the protection scope of the present invention.

[0038] Preferably, the fixing structure on the clip 121 is set as a plurality of latch teeth 123, and the clip 121 is firmly fixed on the fan installation rod 500 by cooperating with the latch teeth 123 structure and the latching portion in the latch hole 540 of the fan installation rod 500. The latching portion is a latching groove (not shown in the figure) provided in the latch hole 540 for inserting and cooperating with the latch teeth 123 structure. Moreover, setting the fixing structure as the latch teeth 123 structure can increase the connection strength between the clip 121 and the latch hole 540, thereby effectively increasing the connection strength between the card block 120 and the fan installation rod 500, further improving the overall installation stability of the support pin 100, and reducing the risk of the support pin 100 falling off. A clamp bottom plate 124 is provided at one end of the clamp 121 close to the claw 122, and the thickness of the end of the clamp bottom plate 124 close to the claw 122 is greater than the end away from the claw 122, so as to ensure the connection strength between the clamp 121 and the claw 122 and reduce the risk of disconnection between the claw 122 and the clamp 121. In this embodiment, the clamp 121 and the clamp hole 540 can also adopt an interference fit, which can further ensure the connection strength between the clamp 121 and the clamp hole 540. Of course, in addition to this embodiment, the clamp 121 and the clamp hole 540 can also be fixedly connected by threaded connection or welding, etc. As long as the connection method can stably fix the clamp 121 in the clamp hole 540, it belongs to the protection scope of the present invention.

[0039] The first connection part 111 of the support pin body 110 is in the shape of a bulb with an outer diameter gradually increasing from both ends to the middle, and the outer surface is smooth, which is conducive to increasing the smoothness of the support pin body 110 and reducing the friction between the support pin body 110 and the pin hole 530 during rotation. The third connection part 113 passes through and is hinged on the first support rod 300 and the second support rod 400, and a limiting block 115 is provided at the bottom end of the third connection part 113, that is, the end of the third connection part 113 away from the first connection part 111 and the second connection part 112. The limiting block 115 is stuck on the bottom surface of the second support rod 400, thereby preventing the support pin body 110 from detaching from the second support rod 400. Through the joint action of the limiting washer 114 and the limiting block 115, the third connection part 113 is nested in the second support rod 400. The limiting washer 114 is not necessarily required, and the third connection portion 113 can be nested in the second support rod 400 through the claw 122, or through the joint action of the fan mounting rod 500 and the limiting block 115.

[0040] A support pin 100 of the present invention is provided with a clamping block 120 to clamp the support pin body 110. The clamping block 120 is fixedly installed in the fan mounting rod 500, and the clamping claw 122 of the clamping block 120 is rotatably connected with the support pin body 110. Under the condition that the rotation of the support pin body 110 is not hindered, the support pin body 110 can be fixed, and the function of preventing the support pin body 110 from falling off and shifting is played. The present invention also provides an adjustable hinge. By using the above-mentioned support pin 100, the adjustable hinge has better stability as a whole. Under the premise of ensuring the smoothness of the adjustable hinge, the stability of the adjustable hinge is improved, and the problem of damage to the door and window hinges caused by the easy falling off or shifting of the support pin 100 in the prior art is solved.

[0041] The preferred specific embodiments of the present invention are described in detail above. It should be understood that a person skilled in the art can make many modifications and changes based on the concept of the present invention without creative work. Therefore, any technical solution that can be obtained by a person skilled in the art through logical analysis, reasoning or limited experiments based on the concept of the present invention on the basis of the prior art should be within the scope of protection determined by the claims.

Claims

1. A support pin, characterized in that: It comprises a support pin body and a clamping block, wherein the support pin body comprises a first connection part, a second connection part and a third connection part connected in sequence, the diameter of the first connection part is larger than that of the second connection part, a limiting washer is arranged between the second connection part and the third connection part, or the maximum width of the horizontal cross section of the third connection part is smaller than or equal to the diameter of the second connection part, the clamping block comprises a clamp and a claw, the clamp is provided with a fixing structure fixedly connected to an external device, one end of the claw is connected to the clamp, and the other end is rotatably connected to the second connection part; The clamp is integrally connected with the claw and is L-shaped as a whole; The outer diameter of the first connecting portion gradually increases from both ends to the middle.

2. A support pin according to claim 1, characterized in that: The fixing structure is configured as a plurality of latch teeth.

3. A support pin according to claim 1, characterized in that: A clamp bottom plate is arranged at one end of the clamp close to the clamp claw.

4. A support pin according to claim 1, characterized in that: A limiting block is arranged at the bottom end of the third connecting portion.

5. An adjustable hinge, comprising a support pin according to any one of claims 1 to 4, characterized in that: Also includes: A frame mounting rod, wherein the frame mounting rod is fixedly mounted on the window frame; a first support rod, one end of which is hinged to the frame mounting rod; a first sliding block, the first sliding block being slidably disposed on the frame mounting rod; a second support rod, one end of which is hinged on the first sliding block, and the second support rod is hinged to the first support rod; A sash mounting rod, the sash mounting rod is fixedly mounted on the window sash, one end of the sash mounting rod is hinged to an end of the second support rod away from the first slider through the support pin; one end of the sash mounting rod close to the second support rod is fixedly connected to the fixing structure of the clip; The second slider is slidably arranged on the fan mounting rod, and one end of the first support rod facing away from the frame mounting rod is hinged to the second slider.

6. The adjustable hinge according to claim 5, characterized in that: A pin hole and a clamping hole are provided at the bottom of one end of the fan mounting rod on which the supporting pin is mounted. The first connecting portion of the supporting pin can be rotatably inserted into the pin hole. The clamp is inserted into and fixed in the clamping hole. A clamping portion is provided in the clamping hole to cooperate with the fixing structure and to be fixed thereto.

7. An adjustable hinge according to claim 6, characterized in that: A transition hole groove is arranged between the pin hole and the clamping hole, and the clamping claw is nested in the transition hole groove.

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