Crank connecting rod mechanism

Abstract

The utility model discloses a crank connecting rod mechanism which comprises a frame edge mounting plate, a sash sliding block, a first connecting rod and a second connecting rod, the frame edge mounting plate is fixed on a frame edge groove of a window sash, the sash sliding block penetrates through a sash edge groove of the window sash and can slide relatively, and the first connecting rod and the second connecting rod are respectively hinged between a frame edge mounting seat and the sash sliding block. The first connecting rod and the second connecting rod synchronously move along with sliding of the sash sliding block. By the adoption of the double-connecting-rod design, in the opening state, the double-connecting-rod acts on the sash, the pulling force is doubled, and stability and reliability are achieved. Besides, on the basis of the design of a connecting rod mechanism, the crank can move leftwards or rightwards when moving, and can be installed on the basis of application requirements so as to meet the requirements of different opening angles. In addition, a sliding groove is designed to compensate the motion size of the connecting rod and eliminate dead points.

Description

Technical Field

[0001] The utility model relates to the technical field of doors and windows, and particularly relates to a crank connecting rod mechanism. Background Art

[0002] The opening window sashes of modern buildings are gradually moving towards the direction of being extra large and heavy. However, it is difficult for the existing hardware on the market to meet the specification requirements of extra large window sashes. In many public places, the inward-opening casement windows are selected because they do not occupy space and can ventilate. The opening angles of extra large inward-opening casement windows are different in different places. For example, the opening angle of the inward-opening casement window in schools is small to prevent students from climbing through the window; the opening angle of the inward-opening casement window in hospitals needs to be larger to replace fresh air. Summary of the Invention

[0003] In view of the above technical problems, the utility model provides a crank connecting rod mechanism, which can achieve a simple structure, large force-bearing strength, and can install window sashes at different angles as required.

[0004] In order to solve the above technical problems, a technical solution adopted by the utility model is: to provide a crank connecting rod mechanism, which includes a frame-side mounting plate, a fan sliding block, a first connecting rod and a second connecting rod. The frame-side mounting plate is fixed on the frame-side groove of the window sash. The fan sliding block is inserted into the fan-side groove of the window sash and can slide relatively. The first connecting rod and the second connecting rod are respectively hinged between the frame-side mounting plate and the fan sliding block, and the first connecting rod and the second connecting rod move synchronously as the fan sliding block slides.

[0005] Wherein, a sliding groove is provided on the frame-side mounting plate, and one end of the first connecting rod is hinged in the sliding groove to compensate for the movement dimension of the first connecting rod.

[0006] Wherein, hooks for cooperating with and clamping the frame-side groove are provided at both ends of the frame-side mounting plate.

[0007] Wherein, the frame-side mounting plate is quickly installed on the frame-side groove by cooperating a quick-installation screw with a quick-installation screw plate.

[0008] Wherein, the frame-side mounting plate is also fixed to the frame-side groove by fixing screws.

[0009] Wherein, the first connecting rod and the second connecting rod are respectively riveted to the fan sliding block by quick-installation special-shaped rivets.

[0010] Wherein, the first connecting rod and the second connecting rod are respectively fixed to the frame-side mounting plate by fixing rivets.

[0011] The beneficial effects of the present utility model are as follows: Different from the prior art, the embodiment of the present utility model provides a crank connecting rod mechanism, which includes a frame edge mounting plate, a fan sliding block, a first connecting rod, and a second connecting rod. The frame edge mounting plate is fixed on the frame edge groove of the window sash, and the fan sliding block is inserted into the fan edge groove of the window sash and can slide relatively. The first connecting rod and the second connecting rod are respectively hinged between the frame edge mounting seat and the fan sliding block, and the first connecting rod and the second connecting rod move synchronously as the fan sliding block slides. By adopting this double connecting rod design, when in the open state, the double connecting rods act on the fan, doubling the pulling force and making it more stable and reliable. In addition, based on the design of the connecting rod mechanism, when the crank moves, it can move left or right, and can also be installed according to the usage requirements to meet different opening angle requirements. Description of the Drawings

[0012] Figure 1 is the exploded view of the crank connecting rod mechanism of the embodiment of the present utility model;

[0013] Figure 2 is the left installation and opening schematic diagram of the crank connecting rod mechanism of the embodiment of the present utility model;

[0014] Figure 3 is the right installation and opening schematic diagram of the crank connecting rod mechanism of the embodiment of the present utility model;

[0015] Figure 4 is the closing schematic diagram of the crank connecting rod mechanism of the embodiment of the present utility model;

[0016] Figure 5 is the first schematic diagram of the quick installation on the frame edge of the crank connecting rod mechanism of the present utility model;

[0017] Figure 6 is the second schematic diagram of the quick installation on the frame edge of the crank connecting rod mechanism of the present utility model;

[0018] Figure 7 is the schematic diagram of the quick installation on the fan edge of the crank connecting rod mechanism of the present utility model;

[0019] Figure 8 is the overall installation schematic diagram of the crank connecting rod mechanism of the present utility model;

[0020] Figure 9 is the schematic diagram of the change in the opening angle when the crank connecting rod mechanism of the present utility model is installed at different positions;

[0021] Figure 10 is the schematic diagram of the crank connecting rod mechanism of the present utility model adapted to a multi-lock point window sash.

[0022] Explanation of the reference numerals in the drawings: 1. Fixed rivet; 2. Quick installation screw plate; 3. Frame edge mounting plate; 4. Fixed screw; 5. First connecting rod; 6. Second connecting rod; 7. Quick installation screw; 8. Special-shaped rivet; 9. Fan sliding block; 10. Sliding groove; 11. Hook; 12. Lock point. Detailed implementation mode

[0023] For the convenience of understanding the present utility model, the present utility model will be described more comprehensively below with reference to the relevant drawings. The preferred embodiments of the present utility model are shown in the drawings. However, the present utility model can be implemented in many different forms and is not limited to the embodiments described herein. On the contrary, the purpose of providing these embodiments is to understand the disclosure of the present utility model more thoroughly and comprehensively.

[0024] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by those skilled in the technical field to which the present utility model belongs. The terms used in the specification of the present utility model herein are only for the purpose of describing specific embodiments and are not intended to limit the present utility model. The term "and / or" used herein includes any and all combinations of one or more of the related listed items.

[0025] Please refer to Figures 1 - 10 , which are the structural diagrams of the crank - connecting rod mechanism of the present utility model and the structures of its components respectively.

[0026] As shown in the figure, the embodiment of the present utility model provides a crank - connecting rod mechanism, whose overall structure includes a frame - side mounting plate 3, a fan sliding block 9, a first connecting rod 5 and a second connecting rod 6. The frame - side mounting plate 3 is fixed on the frame - side groove of the window sash, the fan sliding block 9 is inserted into the fan - side groove of the window sash and can slide relatively. The first connecting rod 5 and the second connecting rod 6 are respectively hinged between the frame - side mounting plate 3 and the fan sliding block 9, and the first connecting rod 5 and the second connecting rod 6 move synchronously with the sliding of the fan sliding block 9.

[0027] The crank - connecting rod mechanism of the present utility model is a four - bar mechanism. The frame - side mounting plate is fixed on the frame - side groove of the window sash, and the fan sliding block 9 is inserted into the fan - side groove of the window sash and needs to slide. When the window sash is opened in the inward - inverted position, the fan sliding block 9 slides with the opening of the fan, and the first connecting rod 5, the second connecting rod 6 and the fan sliding block 9 move synchronously.

[0028] Since the connecting - rod mechanism of the present utility model belongs to a four - bar mechanism, when the crank moves, it can move left or right, that is, the overall crank - connecting rod mechanism can be installed left - right without distinction. See Figure 2 and Figure 3 as shown.

[0029] In a possible implementation manner, a sliding groove 10 is provided on the frame - side mounting plate, and one end of the first connecting rod 5 is hinged on the sliding groove 10 to compensate for the movement dimension of the first connecting rod 5.

[0030] After the window sash is opened in the inward-inclined position, the fixing rivet 1 connecting the first connecting rod 5 and the frame side mounting plate 3 generates a tensile force only when it moves to the bottom of the sliding groove 10. The two ends of the second connecting rod 6 are connected and directly bear the force. In the open state, the first connecting rod 5 and the second connecting rod 6 act on the sash with a double-connecting-rod effect, doubling the tensile force and making it stable and reliable. And based on the design of the sliding groove 10, the frame side mounting plate 3 is used to compensate for the movement dimension of the first connecting rod 5 during the crank movement, eliminating the dead point. In the open state and the closed state, the fixing rivet 1 is at different positions (see Figure 2 and Figure 4 shown).

[0031] In a possible implementation, hooks 11 that cooperate with and are snap-fitted into the frame side grooves are provided at both ends of the frame side mounting plate 3.

[0032] Among them, in a possible implementation, the frame side mounting plate 3 is quickly mounted on the frame side groove by cooperating with the quick-installation screw 7 and the quick-installation screw piece 2.

[0033] Through the design of the hooks, the frame side mounting plate can be quickly buckled into the profile groove, and then quickly locked by the cooperation of the quick-installation screw 7 and the quick-installation screw piece 2. Under the combined action of the hooks 11, the quick-installation screw piece 2 and the quick-installation screw 7, the frame side mounting plate is quickly installed, facilitating the installer to adjust to the correct position. Specifically, see Figure 5 , Figure 6 and Figure 8 shown.

[0034] In addition, the frame side mounting plate 3 is also fixed to the frame side groove by fixing screws 4. Further improving the installation stability effect.

[0035] Among them, in a possible implementation, the first connecting rod 5 and the second connecting rod 6 are respectively riveted to the sash sliding block 9 by quick-installation special-shaped rivets 8. During specific installation, the sash sliding block is installed through the sash side groove, the special-shaped rivet 8 is installed on the sash sliding block, and by passing the special-shaped rivet 8 through the corresponding through holes of the first connecting rod and the second connecting rod, the special-shaped rivet can be rotated to achieve quick fixation, eliminating the cumbersome installation process, improving the installation efficiency, and quickly determining the installation position.

[0036] In addition, the first connecting rod 5 and the second connecting rod 6 are respectively fixed to the frame side mounting plate 3 by fixing rivets 1.

[0037] In addition, based on the structural design of the crank connecting rod mechanism of the present utility model, for different users with different required opening angles, different opening angles can be achieved by changing the installation position of the crank connecting rod mechanism. Therefore, it can be installed according to the usage requirements to achieve different opening angles. Specifically, see Figure 9 shown. Based on different installation positions, different opening angles are well achieved.

[0038] Moreover, for the crank - connecting rod mechanism of the present utility model, the window sash installed with this crank - connecting rod mechanism can be installed with lock points and lock seats around its perimeter to achieve an excellent sealing effect. For example, refer to Figure 10 As shown, the crank - connecting rod mechanism of the present utility model can be adapted to a window sash with multiple lock points 12.

[0039] As described in detail above in combination with the attached drawings of the specification of the present utility model, it can be understood that the crank - connecting rod mechanism of the present utility model includes a frame - side mounting plate, a sash sliding block, as well as a first connecting rod and a second connecting rod. The frame - side mounting plate is fixed on the frame - side groove of the window sash, and the sash sliding block is inserted into the sash - side groove of the window sash and can slide relatively. The first connecting rod and the second connecting rod are respectively hinged between the frame - side mounting seat and the sash sliding block, and the first connecting rod and the second connecting rod move synchronously as the sash sliding block slides. By adopting this double - connecting - rod design, when in the open state, the double - connecting rods act on the sash, doubling the pulling force and making it more stable and reliable. In addition, based on the design of the connecting - rod mechanism, when the crank moves, it can move to the left or right, and can also be installed according to the usage requirements to meet different opening - angle requirements.

[0040] The crank - connecting rod mechanism of the present utility model can achieve installation without milling slots. The installation components of the frame and the sash can be installed separately, and the installation process can adopt a quick - installation method, improving the installation efficiency. Moreover, the components are not divided into left and right and can be used interchangeably.

[0041] In addition, the window sash installed with this crank - connecting rod mechanism does not affect the layout of the lock points around the window sash and can be installed with lock points and lock seats around its perimeter to achieve an excellent sealing effect.

[0042] Furthermore, the crank - connecting rod mechanism of the present utility model also has a dead - point prevention design. By compensating the motion trajectory through a sliding groove, the dead point is eliminated.

[0043] The above are only the embodiments of the present utility model, and do not limit the patent scope of the present utility model accordingly. All equivalent structural or equivalent process transformations made by using the content of the specification and drawings of the present utility model, or directly or indirectly applied in other related technical fields, are similarly included in the patent protection scope of the present utility model.

Claims

1. A crank-connecting rod mechanism, characterized in that: The crank-connecting rod mechanism includes a frame edge mounting plate, a sash sliding block, and a first connecting rod and a second connecting rod. The frame edge mounting plate is fixed on the frame edge groove of the window sash. The sash sliding block is passed through the sash edge groove of the window sash and can slide relatively. The first connecting rod and the second connecting rod are respectively hinged between the frame edge mounting plate and the sash sliding block. The first connecting rod and the second connecting rod move synchronously with the sliding of the sash sliding block.

2. The crank-connecting rod mechanism according to claim 1, characterized in that: The frame edge mounting plate is provided with a sliding groove, and one end of the first connecting rod is hinged on the sliding groove to compensate for the movement size of the first connecting rod.

3. The crank-connecting rod mechanism according to claim 1, characterized in that: Both ends of the frame edge mounting plate are provided with hooks that cooperate with the frame edge grooves for clamping.

4. The crank-connecting rod mechanism according to claim 1, characterized in that: The frame edge mounting plate is quickly mounted on the frame edge groove by means of quick-mount screws and quick-mount screw sheets.

5. The crank-connecting rod mechanism according to claim 4, characterized in that: The frame edge mounting plate is also fixed to the frame edge groove by fixing screws.

6. The crank-connecting rod mechanism according to claim 1, characterized in that: The first connecting rod and the second connecting rod are riveted to the fan sliding block respectively through quick-install special-shaped rivets.

7. The crank-connecting rod mechanism according to claim 1, characterized in that: The first connecting rod and the second connecting rod are respectively fixed to the frame side mounting plate by fixing rivets.

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