A micro-motion cabinet door opener

Abstract

A micro-motion cabinet door opener includes a bottom shell and a surface cover that are interlocked with each other, and an accommodating cavity is provided between the bottom shell and the surface cover. The characteristic is that a cam block and a second swing arm are hingedly installed in the accommodating cavity, and a first swing arm extends outward from the side wall of the cam block. The first swing arm and the second swing arm are located at the front end surface of the bottom shell and the surface cover and swing and contact the cabinet door. The beneficial effects of the present invention are: 1. Simple structure and low production cost. 2. The rebound opening trigger stroke of the door opener is short, which can effectively ensure the airtightness of the cabinet door after closing. 3. This door opener is matched with a self-resetting hinge to realize automatic buffering, resetting and closing of the cabinet door, thereby improving the convenience of user use.

Description

Technical Field

[0001] The invention relates to the technical field of household hardware accessories, in particular to a micro-motion cabinet door opener. Background Art

[0002] Rebounders are a frequently used accessory on furniture, especially furniture with doors. They are used to push out the door. When the door is pressed, the rebounder's push rod pops out to push it open. When the door is closed and pressed again, the rebounder cancels the push-out force on the door, closing it. However, current rebounders have the following drawbacks: 1. The rebounder's push rod must always be against the door, which may prevent the door from fully closing. 2. The rebounder requires a certain pressing distance to ensure sufficient distance for the rebounder to function properly when opening or closing the door. This pressing distance is precisely why the door cannot be fully closed. 3. After the door is repeatedly opened and closed, the effectiveness of the rebounder gradually decreases, preventing the door from fully closing. 4. After the door is closed, the door cannot be fully closed, resulting in a height difference between the door and the surrounding structure, affecting its appearance. 5. After the rebounder is opened, the door needs to be manually pressed to lock, and automatic reset and closing cannot be achieved. Summary of the Invention

[0003] The purpose of the present invention is to overcome the shortcomings of the existing technology and provide a micro-motion cabinet door opener which has a simple structure, is easy to use, can ensure the airtightness of the cabinet door after closing, and can realize automatic buffered closing of the cabinet door when used with a self-resetting hinge.

[0004] The object of the present invention is achieved by the following method: a micro-motion cabinet door opener, comprising a bottom shell and a cover that interlock with each other, a receiving cavity being provided between the bottom shell and the cover, a cam block and a second swing arm being hingedly mounted in the receiving cavity, a first swing arm extending outwardly from a side wall of the cam block, the first swing arm and the second swing arm being located at the front end surfaces of the bottom shell and the cover so as to swing and contact the cabinet door;

[0005] The other end of the second swing arm is hinged to a sliding seat slidably installed in the accommodating cavity through a pull rod. When the second swing arm swings, the pull rod drives the sliding seat to slide. A first tension spring is provided between the pull rod and the accommodating cavity. The first tension spring pulls the pull rod to always move toward the sliding seat.

[0006] A guide pressure block is also installed on the left end surface of the sliding seat. The guide pressure block is connected to the sliding seat through a limit pull rod, and a first spring is provided between the two. The first spring pushes the sliding seat and the guide pressure block to always move in opposite directions. The limit pull rod limits the relative movement stroke between it and the sliding seat.

[0007] A swing block is hingedly mounted in the accommodating cavity via a first hinge shaft. Correspondingly, a spring is connected to the limit pull rod. The free end of the spring slides on the lower end surface of the swing block, driving the swing block to swing, so that the left end surface of the swing block is in contact with or separated from the right end surface of the sliding seat.

[0008] A linkage mechanism is further provided in the accommodating chamber, which connects the cam block and the guide pressure block. When the first swing arm is closed, the cam block drives the guide pressure block to move rightward through the linkage mechanism and compresses the first spring.

[0009] The cam block is also hingedly installed with a connecting rod, the other end of the connecting rod is hinged to a driving seat slidably installed in the accommodating cavity, the upper end of the driving seat is provided with a guide groove, the push rod is slidably installed in the guide groove, and a second spring is sleeved on the surface of the push rod, the second spring is under pressure between the push rod and the guide groove, pushing the driving seat to always move to the right, the upper end of the push rod is provided with a hook connected to the hanging block provided at the bottom of the sliding seat, when the sliding seat moves to the right, the push rod is pushed to the right through the linkage of the hook and the hanging block, and the second spring is compressed.

[0010] The linkage mechanism is a cam bracket hingedly installed in the accommodating cavity. One end of the cam bracket contacts the guide pressure block and drives the guide pressure block to move. The other end of the cam bracket contacts the outer circumference of the cam block, and drives the cam bracket to swing when the cam block rotates.

[0011] One end of the cam bracket that contacts the cam block is provided with a rolling element, and the rolling element contacts the cam block to transmit power.

[0012] One end of the limit rod is connected to the guide pressure block, and a limit groove is provided on the other end of the guide pressure block. The limit groove is trapped outside the limit block located on the sliding seat, and the limit groove limits the relative motion stroke between the guide pressure block and the limit rod.

[0013] The described limiting pull rod is provided with two pieces, and is symmetrically mounted on the upper and lower end surfaces of the guide pressing block, and covers the upper and lower end surfaces of the sliding seat.

[0014] A guide shaft is provided on the side of the guide pressure block facing the sliding seat. The guide shaft is inserted into the guide hole on the end face of the sliding seat. The first spring ring is sleeved on the surface of the guide shaft. One end of the first spring is supported on the guide pressure block and the other end is supported on the sliding seat.

[0015] The spring piece is made of an elastic metal plate, one end of which is connected to the limit pull rod, and the other end is provided with a contact boss, which is pressed on the swing stopper to slide.

[0016] The accommodating cavity is also provided with a guide slide groove arranged parallel to the movement direction of the driving seat. The left end of the guide slide groove is connected to the obliquely arranged hook slide groove. The guide slide groove and the hook slide groove are connected. A clutch slider is provided with a first guide block sliding in the guide slide groove. The clutch slider is also provided with a second guide block sliding in the guide slide groove and the hook slide groove.

[0017] A second tension spring is provided between the clutch slider and the accommodating cavity, and the second tension spring pulls the clutch slider to always move in the direction of the second swing arm.

[0018] The upper end of the clutch slider is provided with a collision block, and correspondingly, the lower end of the driving seat is provided with a collision hole. When the driving seat moves to the right, it collides with the collision block through the collision hole and hooks with each other. The clutch slider moves to the right under the action of the second tension spring, and pulls the driving seat to move to the right synchronously through the collision block.

[0019] The present invention has the following advantages: 1. Simple structure and low production cost. 2. The door opener has a short rebound trigger stroke, which effectively ensures the airtightness of the cabinet door after closing. 3. When used with a self-resetting hinge, the door can automatically buffer and reset to close, improving user convenience. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 This is a diagram showing the effect of the cabinet body and cabinet door being assembled and used after the present invention is matched with the self-resetting hinge.

[0021] Figure 2 This is the structural assembly effect diagram of the present invention.

[0022] Figure 3 This is a schematic diagram of the structure behind the hidden cover of the present invention.

[0023] Figure 4 This is the structural assembly diagram of the present invention.

[0024] Figure 5 This is an assembly diagram of the sliding seat and the guide pressing block in the present invention.

[0025] Figure 6 This is an assembly diagram of the cam block and the drive seat in the present invention.

[0026] Figure 7 、 8 9 is a diagram showing the operation process of the door opener when the cabinet door is closed in the present invention.

[0027] Figure 10 、 11 , 12, and 13 are diagrams showing the operation process of the door opener when the cabinet door is opened in the present invention. DETAILED DESCRIPTION

[0028] The present invention will be further described below in conjunction with the accompanying drawings. A micro-motion cabinet door opener includes a base shell 1 and a cover 2 that interlock with each other. A receiving cavity is provided between the base shell 1 and the cover. A cam block 3 and a second swing arm 4 are hingedly mounted within the cavity. A first swing arm 31 extends outward from the side wall of the cam block 3. The first swing arm 31 and the second swing arm 4 are located at the front ends of the base shell 1 and the cover and swing to contact the cabinet door 5.

[0029] The other end of the second swing arm 4 is hinged to a sliding seat 6 slidably installed in the accommodating cavity via a pull rod 41. When the second swing arm 4 swings, the pull rod 41 drives the sliding seat 6 to slide. A first tension spring 42 is provided between the pull rod 41 and the accommodating cavity. The first tension spring 42 pulls the pull rod 41 to always move toward the sliding seat 6.

[0030] A guide pressure block 7 is further mounted on the left end face of the sliding seat 6. The guide pressure block 7 is connected to the sliding seat 6 via a limit rod 71, and a first spring 72 is provided between the two. The first spring 72 pushes the sliding seat 6 and the guide pressure block 7 to always move in opposite directions. The limit rod 71 limits the relative motion stroke between the guide pressure block 7 and the sliding seat 6.

[0031] A swing block 81 is hingedly mounted in the accommodating cavity via the first hinge shaft 8. Correspondingly, a spring 82 is connected to the limiting pull rod 71. The free end of the spring 82 slides on the lower end surface of the swing block 81, driving the swing block 81 to swing, so that the left end surface of the swing block 81 is in contact with or separated from the right end surface of the sliding seat 6.

[0032] The accommodating chamber is further provided with a linkage mechanism, which connects the cam block 3 and the guide pressure block 7. When the first swing arm 31 is closed, the cam block 3 drives the guide pressure block 7 to move rightward through the linkage mechanism and compresses the first spring 72.

[0033] The cam block 3 is also hingedly installed with a connecting rod 9, the other end of the connecting rod 9 is hingedly installed with a driving seat 91 slidably installed in the accommodating cavity, and the upper end of the driving seat 91 is provided with a guide groove 92, and the push rod 93 is slidably installed in the guide groove 92, and a second spring 94 is sleeved on the surface of the push rod 93. The second spring 94 is under pressure between the push rod 93 and the guide groove 92, pushing the driving seat 91 to always move to the right. The upper end of the push rod 93 is provided with a hook 95 connected to the hanging block 96 set at the bottom of the sliding seat 6. When the sliding seat 6 moves to the right, the push rod 93 is pushed to the right through the linkage of the hook 95 and the hanging block 96, and the second spring 94 is compressed.

[0034] The linkage mechanism is a cam bracket 10 hingedly installed in the accommodating cavity. One end of the cam bracket 10 contacts the guide pressure block 7 and drives the guide pressure block 7 to move. The other end of the cam bracket 10 contacts the outer circumference of the cam block 3. When the cam block 3 rotates, the cam bracket 10 is driven to swing.

[0035] The end of the cam bracket 10 that contacts the cam block 3 is provided with a rolling element 11 , and the rolling element 11 contacts the cam block 3 to transmit power.

[0036] One end of the limit rod 71 is connected to the guide pressure block 7, and a limit groove 73 is provided on the other end of the guide pressure block 7. The limit groove 73 is looped outside the limit block 61 located on the sliding seat 6, and the limit groove 73 limits the relative movement stroke between the guide pressure block 7 and the limit rod 71.

[0037] The limiting pull rods 71 are provided in two pieces, which are symmetrically mounted on the upper and lower end surfaces of the guide pressing block 7 and cover the upper and lower end surfaces of the sliding seat 6.

[0038] A guide shaft 74 is provided on the side of the guide pressure block 7 facing the sliding seat 6. The guide shaft 74 is inserted into the guide hole on the end face of the sliding seat 6. The first spring 72 is looped on the surface of the guide shaft 74. One end of the first spring 72 is supported on the guide pressure block 7, and the other end is supported on the sliding seat 6.

[0039] The spring piece 82 is made of an elastic metal plate, one end of which is connected to the limiting pull rod 71 , and the other end of which is provided with a contact boss 83 , which presses on the swing block 81 to slide.

[0040] The accommodating cavity is also provided with a guide groove 12 arranged parallel to the movement direction of the driving seat 91. The left end of the guide groove 12 is connected to the obliquely arranged hook groove 13. The guide groove 12 is connected to the hook groove 13. A clutch slider 14 is provided with a first guide block 141 which slides in the guide groove 12. The clutch slider 14 is also provided with a second guide block 142 which slides in the guide groove 12 and the hook groove 13.

[0041] A second tension spring 15 is provided between the clutch slider 14 and the accommodating cavity. The second tension spring 15 pulls the clutch slider 14 to always move toward the second swing arm 4 .

[0042] The upper end of the clutch slider 14 is provided with a collision block 16, and correspondingly, the lower end of the drive seat 91 is provided with a collision hole 97. When the drive seat 91 moves to the right, it collides with the collision block 16 through the collision hole 97 and hooks 95 with each other. The clutch slider 14 moves to the right under the action of the second tension spring 15, and pulls the drive seat 91 to move synchronously to the right through the collision block 16.

[0043] Working principle: Figure 1As shown, during installation, the door opener can be mounted on the upper or lower end surface of the cabinet body 51, so that when the first and second swing arms swing outward, they enter the movable range of the cabinet door and contact the cabinet door, generating a force on the cabinet door. At the same time, the connecting hinge 52 used between the cabinet door and the cabinet body is required to be a reset buffer hinge with a reset closing function (a common commercial accessory).

[0044] like Figure 7 、 8 9, which is a diagram of the door opener operation process when the cabinet door is closed in the present invention. When the cabinet door is open, the first swing arm opens outward and presses on the cabinet door 5, while the second swing arm retracts and is in a state of waiting for rebound. Figure 7 As shown, when the user closes the cabinet door, the door pushes the first swing arm inward, which, through the cam block, drives the cam bracket 10 to swing. This causes the upper end of the cam bracket to press the guide pressure block 7 to the right, forcing the first spring 72 to generate a compressive rebound force. After the user applies a closing force, the contact point between the cam block and the cam bracket 10 has already crossed the highest point of the cam. Therefore, during the closing process of the first swing arm, the cam bracket prevents the cam bracket and the guide pressure block from rebounding. Simultaneously, the self-resetting force of the connecting hinge 52 pushes the cabinet door and the first swing arm into a closed position, bringing the cabinet door into contact with the second swing arm. Since the cabinet door does not need to push the second swing arm back to its original position when the connecting hinge 52 self-resets, the required return closing force is very small, making the closing action possible with the commonly used connecting hinge 52 on the market. Compared to traditional rebound devices that require manual closing and locking of the door, the structure in this case utilizes the connecting hinge 52 to achieve automatic closing.

[0045] like Figure 10 As shown, when the user needs to open the cabinet door, they press inward. The cabinet door applies a pressure F to the top of the second swing arm, which drives the second swing arm to swing leftward, pushing the pull rod 41 and the sliding seat 6 to the left. In this state, because the spring 82 presses on the right end of the swing block 81, when the sliding seat moves a certain distance to the left, the left end of the swing block 81 loses resistance. The elastic force of the spring pushes the left end of the swing block 81 downward, forcing the left end of the swing block 81 out of the range of motion of the sliding seat. When the pressing force disappears, the first spring 72 generates a compressed rebound force to push the sliding seat to the right. The sliding seat uses the pull rod 41 to push the second swing arm outward, pushing the sliding door to open a certain angle in the opposite direction. The user can then operate the cabinet door to fully open through the gap, achieving the purpose of opening the cabinet door without installing a handle.

[0046] During the push-to-open process, the unique support design of the swing block 81 allows the sliding seat 6 to move slightly, disengaging it from the swing block 81. The swing block 81, under the action of the spring, then deflects and releases the sliding seat, completing the rebound action. Therefore, compared with traditional rebounders, the release and rebound travel is smaller and the action is more sensitive. Therefore, even when the cabinet door is fully closed, the user can press the cabinet door and the elastic deformation of the cabinet door body can be used to rebound and open, thus ensuring the door's airtightness after closing.

[0047] like Figure 12 As shown, when the sliding seat 6 moves to the right, the linkage of the hook 95 and the hanging block 96 pushes the push rod 93 to move to the right and compresses the second spring 94. When the user operates the cabinet door to open, the second spring 94 pushes the drive seat 91 to the right through the rebound force, and pulls the first swing arm outward to the maximum open state through the connecting rod 9 in the opposite direction, preparing for the next reset. In order to ensure that the outward opening angle of the first swing arm is large enough. When the sliding seat 6 moves to the right for a certain distance, it collides with the collision block 16 through the collision hole 97 and hooks 95 with each other. The clutch slider 14 moves to the right under the action of the second tension spring 15, and pulls the drive seat 91 to the right synchronously through the collision block 16, generating a second section of tension to push the first swing arm outward to open.

[0048] like Figure 7 As shown, when the first swing arm opens outward, the first tension spring 42 pulls the pull rod 41 to move toward the sliding seat 6; the tension of the first tension spring 42 pushes the sliding seat and the guide pressure block 7 to move to the left and reset. At the same time, the sliding seat 6 pulls the spring piece 82 to the right, forcing the contact point between the spring piece and the rocking block 81 to slide from the right end to the left end of the rocking block. When it slides to the left end of the rocking block 81, the elastic force pushes the left end of the rocking block 81 upward, forcing the rocking block 81 to reset and press against the right end surface of the sliding seat 6, completing the opening and resetting action. The sliding spring piece presses the rocking block 81, so that the rocking block 81 can press the rocking block 81 in different states to reset it or detach it from the sliding seat.

[0049] Compared to traditional technologies, the unique power release mechanism in this case only requires a very small push to open the cabinet door before releasing the power to rebound and open the cabinet door, making the cabinet door more airtight after closing. At the same time, when this door opener is used with a hinge with a built-in reset function, it can achieve automatic closing of the cabinet door, thus avoiding the need for manual pressure on the cabinet door to close the cabinet door with traditional rebound door openers. This makes user operation more convenient and quick, and improves the user experience.

[0050] The basic principles, main features and advantages of the present invention are shown and described above. It should be understood by those skilled in the art that the present invention is not limited to the above embodiments. The above embodiments and descriptions are merely illustrative of the principles of the present invention. Various changes and modifications may be made to the present invention without departing from the spirit and scope of the present invention, and such changes and modifications fall within the scope of the invention as claimed.

Claims

1. A micro-motion cabinet door opener, comprising a bottom shell (1) and a cover (2) that are engaged with each other, a receiving cavity being provided between the bottom shell (1) and the cover, and characterized in that: A cam block (3) and a second swing arm (4) are hingedly mounted in the accommodating cavity. A first swing arm (31) extends outward from the side wall of the cam block (3). The first swing arm (31) and the second swing arm (4) are located at the front end surfaces of the bottom shell (1) and the cover and swing, and contact the cabinet door (5). The other end of the second swing arm (4) is hinged to a sliding seat (6) slidably installed in the accommodating cavity through a pull rod (41). When the second swing arm (4) swings, the sliding seat (6) is driven to slide through the pull rod (41). A first tension spring (42) is provided between the pull rod (41) and the accommodating cavity. The first tension spring (42) pulls the pull rod (41) to always move toward the sliding seat (6). The left end face of the sliding seat (6) is also provided with a guide pressure block (7), which is connected to the sliding seat (6) via a limit rod (71), and a first spring (72) is provided between the two. The first spring (72) pushes the sliding seat (6) and the guide pressure block (7) to always move in opposite directions, and the limit rod (71) limits the relative motion stroke between it and the sliding seat (6); A swing block (81) is hingedly mounted in the accommodating cavity via a first hinge shaft (8). Correspondingly, a spring (82) is connected to the limiting pull rod (71). The free end of the spring (82) slides on the lower end surface of the swing block (81), driving the swing block (81) to swing, so that the left end surface of the swing block (81) is in contact with or separated from the right end surface of the sliding seat (6). A linkage mechanism is also provided in the accommodating chamber, and the linkage mechanism connects the cam block (3) and the guide pressure block (7). When the first swing arm (31) is closed, the cam block (3) drives the guide pressure block (7) to move rightward through the linkage mechanism and compresses the first spring (72). The cam block (3) is also hingedly mounted on a connecting rod (9), the other end of the connecting rod (9) is hingedly mounted on a driving seat (91) slidably mounted in the accommodating cavity, the upper end of the driving seat (91) is provided with a guide groove (92), the push rod (93) is slidably mounted in the guide groove (92), and a second spring (94) is sleeved on the surface of the push rod (93), the second spring (94) is pressed between the push rod (93) and the guide groove (92), and pushes the driving seat (91) to always move in the right direction, the upper end of the push rod (93) is provided with a hook (95) connected to a hanging block (96) provided at the bottom of the sliding seat (6), and when the sliding seat (6) moves to the right, the push rod (93) is pushed to the right by the linkage of the hook (95) and the hanging block (96), and the second spring (94) is compressed; The accommodating cavity is further provided with a guide slot (12) arranged parallel to the movement direction of the driving seat (91), the left end of the guide slot (12) is connected to a hook slot (13) arranged obliquely, the guide slot (12) and the hook slot (13) are connected, a first guide block (141) is provided on a clutch slider (14) and slides in the guide slot (12), and a second guide block (142) is further provided on the clutch slider (14) and slides in the guide slot (12) and the hook slot (13); A second tension spring (15) is provided between the clutch slider (14) and the accommodating cavity, and the second tension spring (15) pulls the clutch slider (14) to always move in the direction of the second swing arm (4).

2. The micro-motion cabinet door opener according to claim 1, characterized in that: The linkage mechanism is a cam bracket (10) hingedly mounted in the accommodating cavity. One end of the cam bracket (10) contacts the guide pressure block (7) and drives the guide pressure block (7) to move. The other end of the cam bracket (10) contacts the outer circumference of the cam block (3). When the cam block (3) rotates, the cam bracket (10) is driven to swing.

3. The micro-motion cabinet door opener according to claim 2, characterized in that: One end of the cam bracket (10) that contacts the cam block (3) is provided with a rolling element (11), and the rolling element (11) contacts the cam block (3) to transmit power.

4. The micro-motion cabinet door opener according to claim 1, characterized in that: One end of the limit rod (71) is connected to the guide pressure block (7), and a limit groove (73) is provided on the other end of the guide pressure block (7). The limit groove (73) is trapped outside the limit block (61) located on the sliding seat (6), and the limit groove (73) limits the relative movement stroke between the guide pressure block (7) and the limit rod (71).

5. The micro-motion cabinet door opener according to claim 4, characterized in that: The limiting pull rod (71) is provided with two pieces, which are symmetrically mounted on the upper and lower end surfaces of the guide pressing block (7) and cover the upper and lower end surfaces of the sliding seat (6).

6. The micro-motion cabinet door opener according to claim 1, characterized in that: A guide shaft (74) is provided on the side of the guide pressure block (7) facing the sliding seat (6), and the guide shaft (74) is inserted into the guide hole on the end face of the sliding seat (6). The first spring (72) is looped on the surface of the guide shaft (74), and one end of the first spring (72) is supported on the guide pressure block (7), and the other end is supported on the sliding seat (6).

7. The micro-motion cabinet door opener according to claim 1, characterized in that: The spring (82) is made of an elastic metal plate, one end of which is connected to the limit pull rod (71), and the other end of which is provided with a contact boss (83), which is pressed on the swing block (81) to slide.

8. The micro-motion cabinet door opener according to claim 1, characterized in that: The upper end of the clutch slider (14) is provided with a collision block (16), and correspondingly, the lower end of the drive seat (91) is provided with a collision hole (97). When the drive seat (91) moves to the right, it collides with the collision block (16) through the collision hole (97) and hooks with each other (95). The clutch slider (14) moves to the right under the action of the second tension spring (15) and pulls the drive seat (91) to move to the right synchronously through the collision block (16).

Images