CN212898068U - Self-power-assisted switch pulley - Google Patents

Abstract

The utility model relates to the technical field of doors and windows, and discloses a self-help opening and closing pulley, which solves the problem that the pulley at the bottom of a sliding door and window is laborious in opening and closing the window, and solves the problem of positioning of a window sash in the sliding process; the pressure spring fixing column is riveted at the corner of the supporting plate, and a pressure spring sleeve is arranged between the pressure spring fixing column and the swing arm; the pressure spring is installed in the pressure spring cover, and bearing row fixed mounting is in the swing arm middle part, and the roller of bearing row and layer board bottom surface sliding contact bear the most casement weight that bears on the layer board. Under the action of external force, the device completes the opening and closing of the window sash through the combined action of the torsion spring and the pressure spring, thereby reducing the thrust on the sliding window and achieving the aim of saving labor in the actions of opening and closing the window by people.

Description

Self-power-assisted switch pulley

Technical Field

The utility model relates to a door and window technical field especially relates to a self-service power switch pulley.

Background

The sliding door and window is characterized in that the sash runs along the guide rail in the opening and closing process of the door and window, the sash is tightly plugged and sealed with the frame after being closed, and the sash is separated from the frame after being opened, keeps parallel to the frame and is pushed and pulled to one side for opening. The pulley of high quality can promote the window push-and-pull function to a great extent, and the pulley of present stopper formula sliding door and window can not play the effect of province to the austral window, sliding sash when opening and closing the window, and after accomplishing the push-and-pull, can not fix the sliding sash, therefore, we have proposed a self-service power switch pulley to solve the above-mentioned problem.

SUMMERY OF THE UTILITY MODEL

The utility model aims at solving the pulley of the sliding window bottom that exists among the prior art and can not playing the effect of province to the austral window, sliding sash when the push-and-pull, and after accomplishing the push-and-pull, can not carry out fixed shortcoming to the austral window, sliding sash, and the self-service power switch pulley that proposes.

In order to achieve the above purpose, the utility model adopts the following technical scheme:

self-powered switch pulley, including: the device comprises a supporting plate, a first rotating shaft, a swinging arm, a pressure spring fixing column, a pressure spring sleeve, a pressure spring, a torsion spring, a bearing row roller, a second rotating shaft, a pulley frame, a pulley, a riveting column, a key groove hole, a third rotating shaft, a connector and a limiting column, wherein the first rotating shaft is arranged in the middle of the supporting plate, and one end of the swinging arm is rotatably connected with the supporting plate through the first rotating shaft;

the torsion spring is sleeved on the first rotating shaft and is in a compressed state, one end of the torsion spring is in contact with the side edge of the swing arm, and the other end of the torsion spring is clamped on the riveting column on the supporting plate;

the pressure spring sleeve is provided with a long strip-shaped key slot hole, and the pressure spring fixing column penetrates through the key slot hole and is riveted at the corner part of the supporting plate; one end of the pressure spring sleeve is rotatably connected with the tail part of the swing arm through a third rotating shaft; the pressure spring is arranged in the pressure spring sleeve, the pressure spring is in a compression state, one end of the pressure spring is propped against the pressure spring fixing column, and the other end of the pressure spring is propped against the inner wall of the pressure spring sleeve.

Preferably, the elastic potential energy of the torsion spring is minimum when the swing arm is at the maximum rotation angle, and the elastic potential energy of the torsion spring is maximum when the swing arm is in the horizontal state.

Preferably, one side of the swing arm, which is close to the supporting plate, is fixedly provided with a bearing row, the bearing row is positioned in the middle of the swing arm, the bearing row is provided with a bearing row roller, the bearing row roller is in sliding contact with the bottom surface of the supporting plate, and a gap is formed between the bearing row roller and the swing arm.

Preferably, the number of the row rollers in the bearing row is two to five, and the row rollers are linearly arranged in the bearing row.

Preferably, the pulley yoke is rotationally connected with one end of the swing arm far away from the first rotating shaft through a second rotating shaft, two pulleys corresponding to each other are rotationally mounted on the pulley yoke, and the pulleys are located on two sides of the second rotating shaft.

Preferably, the end of the pulley yoke is provided with a connector.

The utility model has the advantages that:

1. when the pulley is pushed, when the fixed column, the first rotating shaft and the third rotating shaft are positioned on the same straight line, the pressure spring is compressed to be shortest, the elastic force is the largest at the moment, and when the pulley is continuously pushed, the pressure spring releases the elastic force to push the window body to be opened, so that the pushing force to the sliding window can be reduced, and the window body is convenient to open.

2. When the swing arm rotates to the limit state, the limit column limits the swing arm to continue rotating, and meanwhile, the swing arm is pushed through the pressure spring to avoid the swing of the swing arm, so that the sliding window sash is fixed, and the sliding window is convenient to open and close.

Drawings

Fig. 1 is a schematic structural diagram of a self-service power switch pulley viewed from the bottom (in an intermediate state);

fig. 2 is a schematic structural view of the self-power switch pulley in front view;

fig. 3 is a schematic view of the self-service power switch in an upward view when the pulley is in an open state;

fig. 4 is a schematic view of the top-view structure of the self-power switch in the opened state of the pulley according to the present invention;

fig. 5 is a schematic view of the self-power switch pulley in a closed state;

fig. 6 is a schematic view of the top-view structure of the self-power switch in the closed state of the pulley according to the present invention;

fig. 7 is a schematic view of the opening state supplementary structure of the self-help switch pulley.

In the figure: the device comprises a supporting plate 1, a first rotating shaft 2, a swing arm 3, a pressure spring fixing column 4, a pressure spring sleeve 5, a pressure spring 6, a torsion spring 7, a bearing row 8, a bearing row roller 9, a second rotating shaft 10, a pulley frame 11, a pulley 12, a riveting column 13, a key groove hole 14, a third rotating shaft 15, a connector 16 and a limiting column 17.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments.

In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and to simplify the description, but do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore should not be construed as limiting the present invention.

Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless specifically limited otherwise.

Referring to fig. 1-7, a self-service force switch pulley comprising: the device comprises a supporting plate 1, a first rotating shaft 2, a swing arm 3, a pressure spring fixing column 4, a pressure spring sleeve 5, a pressure spring 6, a torsion spring 7, a bearing row 8, a bearing row roller 9, a second rotating shaft 10, a pulley frame 11, a pulley 12, a riveting column 13, a key groove hole 14, a third rotating shaft 15, a connector 16 and a limiting column 17, wherein the first rotating shaft 2 is arranged in the middle of the supporting plate 1, and one end of the swing arm 3 is rotatably connected with the supporting plate 1 through the first rotating shaft 2;

the torsion spring 7 is sleeved on the first rotating shaft 2, the torsion spring 7 is in a compressed state, one end of the torsion spring 7 is in contact with the side edge of the swing arm 3, and the other end of the torsion spring 7 is clamped on the riveting column 13 on the supporting plate 1;

the pressure spring sleeve 5 is provided with a strip-shaped key slot hole 14, and the pressure spring fixing column 4 penetrates through the key slot hole 14 and is riveted at the corner position of the supporting plate 1; one end of the pressure spring sleeve 5 is rotatably connected with the tail part of the swing arm 3 through a third rotating shaft 15; the pressure spring 6 is arranged in the pressure spring sleeve 5, the pressure spring 6 is in a compression state, one end of the pressure spring 6 is propped against the pressure spring fixing column 4, and the other end of the pressure spring 6 is propped against the inner wall of the pressure spring sleeve 5.

Further, the elastic potential energy of the torsion spring 7 is the smallest when the swing arm 3 is at the maximum rotation angle, and the elastic potential energy of the torsion spring 7 is the largest when the swing arm 3 is in the horizontal state.

Furthermore, a bearing row 8 is fixedly installed on one side, close to the supporting plate 1, of the swing arm 3, the bearing row 8 is located in the middle of the swing arm 3, a bearing row roller 9 is installed on the bearing row 8, the bearing row roller 9 is in sliding contact with the bottom surface of the supporting plate 1, most of the weight of the window sashes borne on the supporting plate 1, a gap exists between the bearing row roller 9 and the swing arm 3, a gap space is kept, and the bearing row roller 9 is facilitated to rotate.

Further, the number of the bearing row rollers 9 in the bearing row 8 is two to five, and the bearing row rollers 9 are linearly arranged in the bearing row 8.

Further, the torsion spring 7 and the compression spring 6 may be used together or separately.

Further, pulley yoke 11 rotates with the one end of swing arm 3 away from first pivot 2 through second pivot 10 and is connected, rotate on pulley yoke 11 and install two pulleys 12 that correspond each other, pulley 12 is located the both sides of second pivot 10.

Further, the end of the pulley frame 11 is provided with a connector 16.

Further, when the pulley swing arm 3 rotates around the first rotating shaft 2, the pulley swing arm contacts with the limiting column 17 for limiting.

In the process that the pulley is closed to opened, along with the rotation of the swing arm 3 around the first rotating shaft 2, the pressure of the torsion spring 7 gradually releases smaller torsion force, when the pulley rotates to the state that the pressure spring fixing column 4, the first rotating shaft 2 and the third rotating shaft 15 are positioned on the same straight line, the pressure spring 6 is compressed to the shortest length, due to inertia and manpower action, after the critical state is exceeded, the pressure action line of the pressure spring 6 is changed, the pressure spring 6 releases elastic force, the pressure of the pressure spring 6 is changed from windowing resistance to windowing assisting force to push the pulley swing arm 3 to open, and after the swing arm 3 is opened, the torsion force of the torsion spring 7 becomes the smallest torsion force, and the pressure of the pressure spring 6 is helpful;

pulley is from opening to closing the in-process when the swing arm is rotatory to the limit state, along with swing arm 3 rotates around first pivot 2, 7 torsion of torsional spring grow gradually, when pressure spring fixed column 4, first rotation axis 2 and third rotation axis 15 are in same straight line on, it is the biggest to close the window resistance, because inertia and manpower action, after exceeding this critical state, 7 torsion of torsional spring continuously increase, 6 pressure action lines of pressure spring change, 6 pressure of pressure spring are by closing window initial stage resistance, become and close the window helping hand, offset 7 resistance of torsional spring, help the people to close the window laborsavingly.

The bearing row 8 is provided with a plurality of groups of bearing rollers 9 which are in contact with the bottom surface of the supporting plate 1 together, the bearing of the supporting plate 1 borne by the first rotating shaft 2 can be effectively shared, and the swing arm 3 is ensured to rotate flexibly.

The above, only be the concrete implementation of the preferred embodiment of the present invention, but the protection scope of the present invention is not limited thereto, and any person skilled in the art is in the technical scope of the present invention, according to the technical solution of the present invention and the utility model, the concept of which is equivalent to replace or change, should be covered within the protection scope of the present invention.

Claims (6)

1. From helping hand switch pulley, its characterized in that includes: the device comprises a supporting plate (1), a first rotating shaft (2), a swing arm (3), a pressure spring fixing column (4), a pressure spring sleeve (5), a pressure spring (6), a torsion spring (7), a bearing row (8), a bearing row roller (9), a second rotating shaft (10), a pulley frame (11), a pulley (12), a riveting column (13), a key slot hole (14), a third rotating shaft (15) connecting head (16) and a limiting column (17), wherein the first rotating shaft (2) is arranged in the middle of the supporting plate (1), and one end of the swing arm (3) is rotatably connected with the supporting plate (1) through the first rotating shaft (2);

the torsion spring (7) is sleeved on the first rotating shaft (2), the torsion spring (7) is in a compression state, one end of the torsion spring (7) is in contact with the side edge of the swing arm (3), and the other end of the torsion spring (7) is clamped on the riveting column (13) on the supporting plate (1);

the pressure spring sleeve (5) is provided with a strip-shaped key slot hole (14), and the pressure spring fixing column (4) penetrates through the key slot hole (14) and is riveted at the corner position of the supporting plate (1); one end of the pressure spring sleeve (5) is rotatably connected with the tail part of the swing arm (3) through a third rotating shaft (15); the pressure spring (6) is arranged in the pressure spring sleeve (5), the pressure spring (6) is in a compression state, one end of the pressure spring (6) is propped against the pressure spring fixing column (4), and the other end of the pressure spring (6) is propped against the inner wall of the pressure spring sleeve (5).

2. Self-service force switch pulley according to claim 1, characterized in that the spring potential energy of the torsion spring (7) is minimum when the swing arm (3) is at maximum rotation angle and the spring potential energy of the torsion spring (7) is maximum when the swing arm (3) is in horizontal state.

3. The self-help switch pulley according to claim 1, wherein a bearing row (8) is fixedly mounted on one side of the swing arm (3) close to the supporting plate (1), the bearing row (8) is located in the middle of the swing arm (3), a bearing row roller (9) is mounted on the bearing row (8), the bearing row roller (9) is in sliding contact with the bottom surface of the supporting plate (1), and a gap exists between the bearing row roller (9) and the swing arm (3).

4. Self-service force switch pulley according to claim 3, characterized in that the number of bearing row rollers (9) in the bearing row (8) is two to five and that the bearing row rollers (9) are arranged linearly in the bearing row (8).

5. The self-service power switch pulley according to claim 1, wherein the pulley frame (11) is rotatably connected with one end of the swing arm (3) far away from the first rotating shaft (2) through a second rotating shaft (10), two pulleys (12) corresponding to each other are rotatably mounted on the pulley frame (11), and the pulleys (12) are located on two sides of the second rotating shaft (10).

6. Self-service force switch pulley according to claim 5, characterized in that the end of the pulley frame (11) is fitted with a connector (16).

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