An external pressing, swinging and rebounding device

Abstract

The present invention discloses an externally mounted push-swing rebound device, comprising a connecting mechanism and a rebound mechanism, wherein the rebound mechanism comprises a mounting seat, a rebound limit seat, a rotating arm, a core shaft, an elastic element and a sliding positioning pin, wherein the rebound limit seat is fixed on the mounting seat, the rotating arm is rotatably mounted on the mounting seat through the core shaft, and the elastic element is arranged between the mounting seat and the rotating arm; a striker slot is arranged at one end of the rotating arm, and the connecting mechanism has a striker; the sliding positioning pin is slidably mounted in a sliding track groove of the rotating arm, a positioning pin slide is arranged on one side of the rebound limit seat, and one end of the sliding positioning pin is located in the positioning pin slide. The present invention solves the problem of the large length dimension of the existing push-rebound device by swinging and rebounding, and realizes the connection or ejection between the movable part and the fixed part by utilizing the rotation locking and press-unlock rebound of the rotating arm, and the structural design is simple and compact, and is convenient for external use at the rear end of the drawer slide rail, making the push-rebound function more convenient to apply on the drawer.

Description

Technical Field

[0001] The invention relates to a rebound control device for a drawer, and more particularly to an externally mounted pressing, swinging and rebounding device. Background Art

[0002] At present, the slides installed in furniture, cabinets, and drawers are mainly of two types: pull-out type and push-rebound type. The pull-out drawer slide is to pull the drawer by hand to make the drawer slide along the slide. The push-rebound drawer slide is to push the drawer inward for a certain distance and then trigger the rebound device to make the drawer automatically pop out. It is very convenient to use, and the push-rebound drawer slide can prevent children from opening the drawer, which has higher safety. Therefore, the push-rebound drawer slide is more and more widely used.

[0003] The key component of the push-rebound drawer slide is the rebounder (or rebound device). Currently, most push-rebound drawer slides install the rebounder between the fixed rail and the movable rail of the drawer slide. It is generally composed of three parts: a slider seat, a slider, an elastic member and a striker clamp. The slider is installed in the slider seat, and the elastic member is installed between the slider seat and the slider. A slide groove and a hook are usually provided between the slider seat and the slider for cooperation. The position of the slider in the slider seat is controlled by using different positions of the hook in the slide groove. For example, Chinese patent application No. 201711397400.0, application publication date May 4, 2018, invention title: A labor-saving push-rebound mechanism for furniture, the application case relates to a labor-saving push-rebound mechanism for furniture, including a push-rebound device, the push-rebound device at least includes a rebound bracket and a push element, the push element is positioned and / or slides on the rebound bracket, the rebound bracket is provided with a heart-shaped slide groove, the push element is provided with a sliding part and a sliding element, the sliding element is slidably arranged on the push element; the push element is positioned on the rebound bracket, and the sliding element acts on the sliding part when sliding on the push element, the sliding part slides along the track of the heart-shaped slide groove in a sequential direction, and drives the push element to slide on the rebound bracket. The push-rebound mechanism of the application case can make the drawer slide rail rebound and open after being pressed, which improves the convenience of use. However, the push-rebound mechanism is relatively large in length due to the push spring design. It is usually installed between the movable part and the fixed part between the drawer and the cabinet, such as between the drawer side and the inner wall of the cabinet, between the fixed rail and the movable rail of the drawer slide, etc., which occupies a lot of space inside the cabinet and is inconvenient to install. Although the method of integrating the rebounder on the drawer slide is more convenient to install, it requires a major adjustment to the structure of the drawer slide, which increases the manufacturing cost of the drawer slide, and it cannot be installed on the existing drawer slide without the push-rebound function.

[0004] At present, although there are also rebounder designs installed at the rear of the drawer slide rail, such as a drawer guide rail with buffered reset and press-to-rebound opening functions disclosed in Chinese patent application No. 201910658123.7, it is still a specific slide rail structure installed between the movable rail and the fixed rail of the drawer slide rail. Moreover, since the reset spring and damper used in the rebounder are relatively long, the length of the entire rebounder is relatively large, so it is difficult to use it externally at the rear of the existing drawer slide rail.

[0005] Based on the above-mentioned problems existing in the press-rebound device of the existing drawer slide rail, it is necessary to design a press-rebound device with a more compact structure and capable of being used in conjunction with the existing drawer slide rail external plug-in. Summary of the invention

[0006] 1. Technical problem to be solved by the invention

[0007] The purpose of the present invention is to overcome the shortcomings of the existing drawer push-and-rebound device, such as the large length dimension resulting in large installation position limitations, and to provide an external push-and-swing rebound device. The technical solution of the present invention is used to solve the problem of the large length dimension of the existing push-and-rebound device by swinging and rebounding. The rotation locking and push-and-unlock rebound of the rotating arm are used to achieve the connection or bounce between the movable part and the stationary part. The structural design is simple and compact, and is convenient for external use at the rear end of the drawer slide rail, making the application of the push-and-rebound function on drawers such as furniture more convenient.

[0008] 2. Technical solution

[0009] In order to achieve the above object, the technical solution provided by the present invention is:

[0010] An external press-swing rebound device of the present invention comprises a connecting mechanism installed on a movable part and a rebound mechanism installed on a fixed part, wherein the rebound mechanism comprises a mounting seat, a rebound limit seat, a rotating arm, a core shaft, an elastic element and a sliding positioning pin, wherein the rebound limit seat is fixed on the mounting seat, the rotating arm is rotatably mounted on the mounting seat through the core shaft, and the elastic element is arranged between the mounting seat and the rotating arm to apply a rebound torque force to the rotating arm; a striker slot is provided at one end of the rotating arm, and the connecting mechanism has a striker, and the striker can enter the striker slot with the movable part, and push the rotating arm to rotate and compress the elastic element, and at the same time, the striker is restricted in the striker slot after rotation; the sliding positioning pin is slidably installed in the sliding track groove of the rotating arm, and a positioning pin slide is provided on one side of the rebound limit seat, and one end of the sliding positioning pin is located in the positioning pin slide, and can move or stay in the positioning pin slide in a certain sequence direction with the rotation of the rotating arm.

[0011] Furthermore, the positioning pin slide includes an upper slide, a lower slide, a stop groove, a guide slope, an upper extension slide and a lower extension slide. One end of the upper slide is connected to the lower slide, and the connection stop point position of the upper slide and the lower slide corresponds to the guide surface of the upper slide. The other end of the upper slide is connected to the lower slide through a stop groove, and the stop groove corresponds to the guide slope inclined toward the direction of the slide. The tail of the upper slide is provided with an upper extension slide, and the tail of the lower slide is provided with a lower extension slide.

[0012] Furthermore, a limit column is provided on one side of the rotating arm, a limit slot is provided on the rebound limit seat, and the limit column is located in the limit slot; when the sliding positioning needle is located at the connection stop point position of the upper slide and the lower slide, the limit column is against the rebound stop point position of the limit slot.

[0013] Furthermore, the elastic element is a torsion spring, which is sleeved on the core shaft, with one end of the torsion spring resting in a torsion spring limiting groove of the mounting seat and the other end of the torsion spring resting in a torsion spring mounting groove of the rotating arm.

[0014] Furthermore, the opening of the firing pin slot has a guiding arc surface extending downward.

[0015] Furthermore, limiting steps are provided on both sides of the sliding track groove to form a sliding groove with an "I"-shaped cross-section, and the tail of the sliding positioning needle is a sliding button adapted to the sliding groove with the above-mentioned "I"-shaped cross-section.

[0016] Furthermore, the connecting mechanism also has a forward and backward adjustment mechanism for the firing pin, which includes a fixed seat, an adjustment seat, an adjustment knob and an eccentric shaft. The firing pin is fixed on the adjustment seat, and the adjustment seat is slidably matched with the fixed seat forward and backward. The adjusting knob is rotatably installed on the fixed seat. The eccentric shaft is arranged on the adjusting knob, and the axis of the eccentric shaft is eccentrically arranged with the axis of the rotating shaft of the adjusting knob. The adjustment seat is provided with a waist-shaped hole in the left and right directions, and the lower end of the eccentric shaft is slidably installed in the waist-shaped hole.

[0017] Furthermore, it also includes a synchronous connecting piece, which has an eccentric swing arm. The central axis of the synchronous connecting piece is coaxially arranged with the core shaft, and the eccentric axis of the eccentric swing arm is connected to the limiting column of the rotating arm; the central axes of the synchronous connecting pieces of the two sets of external press-swing-rebound devices are connected through a synchronous rod.

[0018] Furthermore, the movable part is a movable rail of a drawer slide rail, the fixed part is a furniture cabinet, the connecting mechanism is installed at the rear of the movable rail, and the rebound mechanism is fixed in the furniture cabinet through a mounting seat.

[0019] Furthermore, an auxiliary pop-up mechanism is provided between the fixed rail and the movable rail of the drawer slide rail, and the auxiliary pop-up mechanism includes a shell, a spring and a slider, both ends of the shell are installed on the movable rail through fixed ears on the movable rail, the slider is slidably installed in the shell, the spring is installed in the shell, and one end of the spring is against the slider, and a stop hook is provided on the fixed rail, and the stop hook cooperates with the extending arm of the slider, and when the movable rail and the fixed rail are contracted, the stop hook blocks the slider to compress the spring to form an auxiliary pop-up force.

[0020] 3. Beneficial effects

[0021] Compared with the existing known technologies, the technical solution provided by the present invention has the following significant effects:

[0022] (1) An external press-swing rebound device of the present invention comprises a connecting mechanism installed on a movable part and a rebound mechanism installed on a stationary part, the rebound mechanism comprises a mounting seat, a rebound limit seat, a rotating arm, a core shaft, an elastic element and a sliding positioning pin, the rebound limit seat is fixed on the mounting seat, the rotating arm is rotatably mounted on the mounting seat through the core shaft, the elastic element is arranged between the mounting seat and the rotating arm, and is used to apply a rebound torque force to the rotating arm; a striker slot is provided at one end of the rotating arm, the connecting mechanism has a striker, the striker can move into the striker slot with the movable part, and push the rotating arm to rotate and compress the elastic element, and at the same time, the striker is restricted in the striker slot after rotation, so as to realize the connection between the movable part and the stationary part; the sliding positioning pin is slidably mounted on the sliding In the track groove, a positioning pin slide is provided on one side of the rebound limit seat, one end of the sliding positioning pin is located in the positioning pin slide, and can move or stay in the positioning pin slide in a certain order as the rotating arm rotates, and the locking or unlocking rebound of the rotating arm is realized by the sequential movement and staying of the sliding positioning pin in the positioning pin slide, and the function of unlocking and rebounding the rotating arm by pressing is realized; the above technical scheme solves the problem of the large length of the existing press-and-rebound device by swinging and rebounding, and the connection or rebound between the movable part and the fixed part is realized by the rotation locking and press-and-unlock rebound of the rotating arm, the structural design is simple and compact, and it is convenient to be used externally at the rear end of the drawer slide, making the application of the press-and-rebound function on drawers such as furniture more convenient;

[0023] (2) The externally mounted push-swing rebound device of the present invention has a positioning pin slideway including an upper slideway, a lower slideway, a stop groove, a guide slope, an upper extension slideway and a lower extension slideway. During the process of the movable part moving toward the fixed part to close, the sliding positioning pin moves backward from the upper slideway into the stop groove to achieve a locking connection between the movable part and the fixed part. When the movable part is pressed inward, the sliding positioning pin moves downward in the direction of the slideway under the action of the guide slope into the lower slideway. When the movable part is released, unlocking is achieved, causing the rotating arm to rebound, thereby ensuring the stability and reliability of the entire push-rebound action.

[0024] (3) An externally mounted press-swing-rebound device of the present invention has a limit column on one side of its rotating arm, a limit slot on the rebound limit seat, and the limit column is located in the limit slot; when the sliding positioning needle is located at the connection stop point of the upper slide and the lower slide, the limit column abuts against the rebound stop point of the limit slot, and the cooperation of the limit column and the limit slot is used to resist the rebound impact, thereby reducing the impact on the sliding positioning needle, effectively protecting the sliding positioning needle from damage, and prolonging the service life of the press-swing-rebound device;

[0025] (4) The externally mounted press-swing rebound device of the present invention has a torsion spring as its elastic element, which is sleeved on the core shaft, one end of the torsion spring is against the torsion spring limiting groove of the mounting seat, and the other end of the torsion spring is against the torsion spring mounting groove of the rotating arm. The torsion spring design has a simple and compact structure, is easy to install, and the torque force of the rotating arm is stable and reliable;

[0026] (5) In the externally mounted push-swing-rebound device of the present invention, the opening of the striker slot has a guide arc surface extending downward, so that the opening size of the striker slot is larger, which is more convenient for the striker of the connecting mechanism to be introduced and led out, and the operating stability and operating feeling of the movable part are better;

[0027] (6) An externally mounted press-swing rebound device of the present invention has limiting steps on both sides of the sliding track groove to form a sliding groove with an "I"-shaped cross section, and the tail of the sliding positioning pin is a sliding button adapted to the sliding groove with the "I"-shaped cross section, so that the sliding positioning pin can be stably limited in the sliding track groove, ensuring that it slides stably in the sliding track groove;

[0028] (7) The external pressing, swinging and rebounding device of the present invention has a connecting mechanism which further has a forward and backward adjustment mechanism for the firing pin, which includes a fixing seat, an adjustment seat, an adjustment knob and an eccentric shaft. The firing pin is fixed on the adjustment seat. By rotating the adjustment knob, the firing pin on the adjustment seat is driven to adjust forward and backward by utilizing the eccentric design, which facilitates fine adjustment of the position after assembly, thereby solving the problem of excessive or insufficient pressing gap caused by assembly error.

[0029] (8) The externally mounted press-swing-rebound device of the present invention further comprises a synchronous connecting member, wherein the synchronous connecting member comprises an eccentric swing arm, wherein the central axis of the synchronous connecting member is coaxially arranged with the core axis, and the eccentric axis of the eccentric swing arm is connected with the limit column of the rotating arm; the central axes of the two sets of synchronous connecting members of the externally mounted press-swing-rebound device are connected via a synchronous rod, thereby achieving the synchronization of the movements of the two sets of rebound devices installed on both sides, especially for a stationary member with a larger width, thereby solving the problem of the two sets of rebound devices on both sides moving in sequence or being unstable, thereby ensuring that the two sets of rebound devices can move synchronously when the stationary member is pressed at different positions, thereby improving the operational stability;

[0030] (9) The present invention is an externally mounted push-swing rebound device, wherein the movable part is the movable rail of the drawer slide rail, the fixed part is the furniture cabinet, the connecting mechanism is installed at the rear of the movable rail, and the rebound mechanism is fixed in the furniture cabinet through a mounting seat, thus realizing the external use of the rebound device on the drawer slide rail, so that the existing drawer slide rail can also have a rebound function;

[0031] (10) An external push-swing rebound device of the present invention has an auxiliary pop-up mechanism between the fixed rail and the movable rail of the drawer slide rail. The auxiliary pop-up mechanism includes a shell, a spring and a slider. When the movable rail and the fixed rail are retracted, the stop hook blocks the slider to compress the spring to form an auxiliary pop-up force, which effectively avoids the problem of insufficient pop-up stroke when the drawer slide rail bears a large load. BRIEF DESCRIPTION OF THE DRAWINGS

[0032] Figure 1 It is a schematic diagram of the connection mechanism and the rebound mechanism of the externally mounted pressing, swinging and rebounding device of the present invention in the separated state;

[0033] Figure 2 It is a schematic diagram of the combined state of the connection mechanism and the rebound mechanism of an externally mounted pressing, swinging and rebounding device of the present invention;

[0034] Figure 3 It is a schematic diagram of the disassembled structure of an externally mounted pressing, swinging and rebounding device of the present invention;

[0035] Figure 4 It is a structural schematic diagram of a rebound limit seat in an externally mounted press-swing-rebound device of the present invention;

[0036] Figure 5 It is a structural schematic diagram of a rotating arm in an externally mounted pressing, swinging and rebounding device of the present invention;

[0037] FIG6( a ) is a schematic diagram of the combined action of the connection mechanism and the rebound mechanism of an externally mounted press-swing-rebound device of the present invention;

[0038] FIG6( b ) is a schematic diagram of the locking action of the connection mechanism and the rebound mechanism of an externally mounted press-swing-rebound device of the present invention;

[0039] FIG6( c ) is a schematic diagram of the pressing and rebounding action of the connecting mechanism and the rebounding mechanism of an external pressing, swinging and rebounding device of the present invention;

[0040] Figure 7 It is a schematic diagram of installing an externally mounted pressing, swinging and rebounding device of the present invention in a drawer and a furniture cabinet;

[0041] Figure 8 for Figure 7 A local enlarged schematic diagram of the K in the middle;

[0042] Fig. 9 It is a schematic diagram of the synchronous installation structure of an externally mounted pressing, swinging and rebounding device of the present invention;

[0043] Fig.10 It is a schematic diagram of an external installation of an external pressing, swinging and rebounding device of the present invention on a drawer slide rail;

[0044] Fig.11 It is a structural schematic diagram of an auxiliary spring-opening mechanism in a drawer slide rail matched with an externally mounted press-swing-rebound device of the present invention;

[0045] Fig.12 for Fig.11 A partial enlarged schematic diagram of the M in the middle;

[0046] Fig.13 It is a structural schematic diagram of another auxiliary opening mechanism in a drawer slide rail matched with an externally mounted pressing, swinging and rebounding device of the present invention;

[0047] Fig.14 for Fig.13 A local enlarged schematic diagram of the N position in the middle;

[0048] Fig.15 The present invention is a schematic diagram of another auxiliary opening mechanism in a drawer slide rail matched with an externally mounted press-swing-rebound device of the present invention.

[0049] Explanation of the symbols in the schematic diagram:

[0050] 1. Connecting mechanism; 1-1. Fixed seat; 1-1-1. Knob shaft hole; 1-2. Adjusting seat; 1-2-1. Waist-shaped hole; 1-3. Strike pin; 1-4. Adjusting knob; 1-4-1. Rotating slot; 1-5. Eccentric shaft;

[0051] 2. Rebound mechanism; 2-1. Mounting seat; 2-1-1. Torsion spring limit groove; 2-2. Rebound limit seat; 2-2-1. Limit slide groove; 2-2-2. Positioning pin slideway; 2-2a. Upper slideway; 2-2b. Lower slideway; 2-2c. Stop groove; 2-2d. Guide slope; 2-2e. Upper extension slideway; 2-2f. Lower extension slideway; 2-2-3. Connecting seat; 2-3. Rotating arm; 2-3-1. Sliding track groove; 2-3-2. Strike pin slot; 2-3-3. Limiting column; 2-3-4. Rotating shaft hole; 2-3-5. Torsion spring mounting groove; 2-3-6. Limiting step; 2-3-7. Guide arc surface; 2-4. Synchronous connecting piece; 2-4-1. Eccentric swing arm; 2-5. Mandrel; 2-6. Elastic element; 2-7. Sliding positioning pin; 2-8. Connecting shaft;

[0052] 100, press-rebound device; 200, drawer; 300, furniture cabinet; 400, synchronization rod; 500, drawer slide rail; 51, fixed rail; 51-1, stop hook; 52, movable rail; 52-1, fixed ear; 53, middle rail; 600, auxiliary pop-up mechanism; 61, housing; 62, spring; 63, slider. DETAILED DESCRIPTION

[0053] In order to further understand the content of the present invention, the present invention is described in detail in conjunction with the accompanying drawings and embodiments.

[0054] Example

[0055] Combination Figures 1 to 5As shown, an external press-swing rebound device of this embodiment includes a connecting mechanism 1 installed on a movable part and a rebound mechanism 2 installed on a stationary part. The connecting mechanism 1 is used to combine with the rebound mechanism 2, and the rebound mechanism 2 is used to perform a rebound action according to the pressing action of the connecting mechanism 1, so as to pop out and disengage the connecting mechanism 1. The above-mentioned rebound mechanism 2 includes a mounting seat 2-1, a rebound limit seat 2-2, a rotating arm 2-3, a core shaft 2-5, an elastic element 2-6 and a sliding positioning pin 2-7. The mounting seat 2-1 is used to be fixedly connected with the stationary part, the rebound limit seat 2-2 is fixed on the mounting seat 2-1, the rotating arm 2-3 is rotatably installed on the mounting seat 2-1 through the core shaft 2-5, and the elastic element 2-6 is provided between the mounting seat 2-1 and the rotating arm 2-3 to apply a rebound torque force to the rotating arm 2-3; a striker slot 2-3-2 is provided at one end of the rotating arm 2-3, and the connecting mechanism 1 has a striker 1-3 , the firing pin 1-3 can move into the firing pin slot 2-3-2 with the movable part, and push the rotating arm 2-3 to rotate the compressed elastic element 2-6, and at the same time, the firing pin 1-3 is restricted in the firing pin slot 2-3-2 after rotation; the sliding positioning pin 2-7 is slidably installed in the sliding track groove 2-3-1 of the rotating arm 2-3, and a positioning pin slide 2-2-2 is provided on one side of the rebound limit seat 2-2, and one end of the sliding positioning pin 2-7 is located in the positioning pin slide 2-2-2, and can move or stay in the positioning pin slide 2-2-2 in a certain sequence and direction as the rotating arm 2-3 rotates. During operation, the movable part is pushed, and the firing pin 1-3 of the connecting mechanism 1 approaches the firing pin slot 2-3-2 of the stationary part rebound mechanism 2. When the firing pin 1-3 enters the firing pin slot 2-3-2, the firing pin 1-3 pushes the rotating arm 2-3 to rotate backward, compressing the elastic element 2-6. During the rotation of the rotating arm 2-3, the sliding positioning pin 2-7 moves in the sliding track slot 2-3-1 and stays in the stop position, so that the rotating arm 2-3 remains in the elastic energy storage state; when the stationary part is pressed again, the sliding positioning pin 2-7 is unlocked in the sliding track slot 2-3-1, and the rotating arm 2-3 rebounds under the action of the elastic element 2-6, and the connecting mechanism 1 and the movable part are ejected outward through the firing pin 1-3.

[0056] like Figure 4As shown, in the present embodiment, the positioning pin slide 2-2-2 includes an upper slide 2-2a, a lower slide 2-2b, a stop groove 2-2c, a guide slope 2-2d, an upper extension slide 2-2e and a lower extension slide 2-2f, the upper slide 2-2a is connected to one end of the lower slide 2-2b, and the connection stop point position of the upper slide 2-2a and the lower slide 2-2b corresponds to the guide surface of the upper slide 2-2a, the other end of the upper slide 2-2a and the lower slide 2-2b are connected through the stop groove 2-2c, and the stop groove 2-2c corresponds to the guide slope 2-2d inclined toward the direction of the lower slide 2-2b, the tail of the upper slide 2-2a is provided with an upper extension slide 2-2e, and the tail of the lower slide 2-2b is provided with a lower extension slide 2-2f. In the initial state, the sliding positioning pin 2-7 is located at the connection stop point of the upper slide 2-2a and the lower slide 2-2b. When the rotating arm 2-3 rotates backward, it drives the sliding positioning pin 2-7 to move backward in the positioning pin slide 2-2-2. Since the sliding positioning pin 2-7 corresponds to the guide surface of the upper slide 2-2a at this time, the sliding positioning pin 2-7 moves along the upper slide 2-2a. Normally, the sliding positioning pin 2-7 stops when it moves to the upper extension slide 2-2e. At this time, the movable part is released, and the rotating arm 2-3 rebounds and drives the sliding positioning pin 2-7 to move forward and get stuck. In the stop groove 2-2c, the movable part is fixed at this time; when it needs to be unlocked, press the movable part again. Since the stop groove 2-2c corresponds to the guide slope 2-2d inclined in the direction of the slide 2-2b, the sliding positioning needle 2-7 is introduced into the lower slide 2-2b through the guide slope 2-2d. Within the pressing stroke, the sliding positioning needle 2-7 enters the lower extension slide 2-2f. At this time, the movable part is released, and the sliding positioning needle 2-7 moves through the lower slide 2-2b to the connection stop point position of the upper slide 2-2a and the lower slide 2-2b, and the rotating arm 2-3 rebounds to pop out the connecting mechanism 1. By adopting the above-mentioned positioning pin slide 2-2-2, during the process of the movable part moving toward the stationary part to close, the sliding positioning pin 2-7 moves backward from the upper slide 2-2a into the stop groove 2-2c, thereby realizing the locking connection between the movable part and the stationary part. When the movable part is pressed inward, the sliding positioning pin 2-7 moves downward in the direction of the slide 2-2b under the action of the guide slope 2-2d and enters the lower slide 2-2b. When the movable part is released, the unlocking is realized, so that the rotating arm 2-3 rebounds, thereby ensuring the stability and reliability of the entire pressing and rebounding action.

[0057] like Figure 3 , Figure 4 and Figure 5As shown, in the present embodiment, a limit column 2-3-3 is provided on one side of the rotating arm 2-3, a limit slot 2-2-1 is provided on the rebound limit seat 2-2, and the limit column 2-3-3 is located in the limit slot 2-2-1; when the sliding positioning needle 2-7 is located at the connection stop point position between the upper slide 2-2a and the lower slide 2-2b, the limit column 2-3-3 is against the rebound stop point position of the limit slot 2-2-1, and the limit column 2-3-3 and the limit slot 2-2-1 are used to resist the rebound impact, thereby reducing the impact on the sliding positioning needle 2-7, effectively protecting the sliding positioning needle 2-7 from damage, and improving the service life of the press-swing rebound device. In addition, in this embodiment, the elastic element 2-6 is preferably a torsion spring, which is sleeved on the core shaft 2-5, one end of the torsion spring is against the torsion spring limiting groove 2-1-1 of the mounting seat 2-1, and the other end of the torsion spring is against the torsion spring mounting groove 2-3-5 of the rotating arm 2-3. The torsion spring design has a simple and compact structure, is easy to install, and the torque of the rotating arm is stable and reliable. In order to facilitate the assembly of the rotating arm 2-3, as shown in FIG. Figure 3 As shown, the above-mentioned mounting seat 2-1 and rebound limit seat 2-2 are connected by a split structure, and a connecting seat 2-2-3 is provided on the rebound limit seat 2-2. The connecting seat 2-2-3 is positioned and installed in the corresponding mounting groove of the mounting seat 2-1 and fixedly connected by screws. The rotating arm 2-3 is located between the mounting seat 2-1 and the rebound limit seat 2-2. The core shaft 2-5 is penetrated through the mounting seat 2-1 and the rebound limit seat 2-2, and the rotating shaft hole 2-3-4 of the rotating arm 2-3 is sleeved on the core shaft 2-5. In order to facilitate the stable cooperation between the striker 1-3 and the striker slot 2-3-2 of the rotating arm 2-3, a guide arc surface 2-3-7 extending downward is provided at the opening of the striker slot 2-3-2, so that the opening size of the striker slot 2-3-2 is larger, which is more convenient for the striker 1-3 of the connecting mechanism 1 to be introduced and exported, so that the operating stability and operating feeling of the movable part are better. In order to ensure the stable movement of the sliding positioning needle 2-7, in this embodiment, limiting steps 2-3-6 are provided on both sides of the sliding track groove 2-3-1 to form a sliding groove with an "I"-shaped cross-section. The tail of the sliding positioning needle 2-7 is a sliding button that is compatible with the sliding groove with the above-mentioned "I"-shaped cross-section. The sliding button at the tail of the sliding positioning needle 2-7 is limited in the sliding track groove 2-3-1, so that the sliding positioning needle 2-7 can only move along the track of the sliding track groove 2-3-1, and cannot be displaced axially, thereby ensuring its stable sliding in the sliding track groove 2-3-1.

[0058] See also Figure 1 , Figure 2 and Figure 3As shown, in this embodiment, in order to avoid the pressing stroke failing to meet the design requirements due to assembly errors, the connecting mechanism 1 also has a striker front and rear adjustment mechanism, which includes a fixed seat 1-1, an adjustment seat 1-2, an adjustment knob 1-4 and an eccentric shaft 1-5. The fixed seat 1-1 is used to connect with the movable part, the striker 1-3 is fixed on the adjustment seat 1-2, the adjustment seat 1-2 and the fixed seat 1-1 are slidably matched front and back, and the adjustment knob 1-4 is rotatably mounted on the fixed seat 1-1. Specifically, a frustum is provided at the bottom of the adjustment knob 1-4, and a knob shaft hole 1-1 is provided on the fixed seat 1-1. -1, the frustum of the adjusting knob 1-4 is rotatably installed in the knob shaft hole 1-1-1, so that the adjusting knob 1-4 can rotate freely, the eccentric shaft 1-5 is arranged on the adjusting knob 1-4, and the axis of the eccentric shaft 1-5 is eccentrically arranged with the axis of the rotating shaft of the adjusting knob 1-4, and the adjusting seat 1-2 is provided with a waist-shaped hole 1-2-1 in the left and right directions, and the lower end of the eccentric shaft 1-5 is slidably installed in the waist-shaped hole 1-2-1. When the adjusting knob 1-4 is rotated, the eccentric shaft 1-5 moves in a circle around the axis of the rotating shaft of the adjusting knob 1-4, thereby being able to drive the adjusting seat 1-2 to move forward and backward relative to the fixed seat 1-1. In this embodiment, the adjustment stroke of the striker front and rear adjustment mechanism is designed to be ±3mm. In addition, when the rebound device is installed at the tail position of the movable part and the stationary part, due to the limited internal space, such as Figure 7 In the drawer installation form shown, in order to facilitate the adjustment of the adjusting knob 1-4, a rotating slot 1-4-1 is set on the adjusting knob 1-4, and a one-yuan coin or the like can be inserted into the rotating slot 1-4-1 for rotation adjustment, making the rotation of the adjusting knob 1-4 more flexible and convenient.

[0059] In order to ensure the pop-up stability of the movable part, an external push-swing rebound device of the present embodiment is usually used in pairs. In order to ensure the synchronization of the actions of the two groups of rebound devices, an external push-swing rebound device of the present embodiment, the push-rebound device 100, also includes a synchronous connector 2-4, the synchronous connector 2-4 has an eccentric swing arm 2-4-1, the center axis of the synchronous connector 2-4 is coaxially arranged with the core shaft 2-5, preferably, the core shaft 2-5 passes through the rebound limit seat 2-2, and is coaxially fixedly connected with the center axis of the synchronous connector 2-4 through a connector, the eccentric shaft of the eccentric swing arm 2-4-1 is connected to the limit column 2-3-3 of the rotating arm 2-3, for ease of installation, the limit column 2-3-3 and the eccentric shaft of the eccentric swing arm 2-4-1 are connected by a connecting shaft 2-8, so that the synchronous connector 2-4 and the rotating arm 2-3 can swing synchronously. Figure 8 and Fig. 9As shown, the central axes of the synchronous connecting parts 2-4 of the two sets of external press-swing-rebound devices can be connected by a synchronization rod 400, so that the two sets of external press-swing-rebound devices can be synchronously moved. Especially for the fixed parts with a larger width, the problem of the two sets of rebound devices on both sides moving in sequence or unstably is solved, and it is ensured that the two sets of rebound devices can move synchronously at different positions of the pressing fixed parts, thereby improving the operational stability.

[0060] like Figures 7 to 10 As shown, the present embodiment is an externally mounted push-swing rebound device, which is particularly suitable for external mounting on a drawer slide 500. That is, the movable part is the movable rail 52 of the drawer slide 500, and the fixed part is the furniture cabinet 300. The connecting mechanism 1 is installed at the rear of the movable rail 52, and the rebound mechanism 2 is fixed in the furniture cabinet 300 through the mounting seat 2-1, thereby realizing the external mounting of the rebound device on the drawer slide 500, so that the existing drawer slide can also have a rebound function. When the load in the drawer 200 is large, the rebound stroke of the torsion spring of the rebound mechanism 2 may be insufficient. For this reason, an auxiliary rebound mechanism 600 may be provided between the fixed rail 51 and the movable rail 52 of the drawer slide 500, such as Fig.11 and Fig.12 As shown, the auxiliary pop-up mechanism 600 includes a shell 61, a spring 62 and a slider 63. Mounting ears are provided at both ends of the shell 61. A matching fixed ear 52-1 is provided on the movable rail 52. Both ends of the shell 61 are installed on the movable rail 52 through the fixed ears 52-1 on the movable rail 52. The slider 63 is slidably installed in the shell 61. The spring 62 is installed in the shell 61, and one end of the spring 62 is against the slider 63. A stop hook 51-1 is provided on the fixed rail 51. The stop hook 51-1 cooperates with the protruding arm of the slider 63. The protruding arm of the slider 63 extends outward from one side of the shell 61. When the movable rail 52 and the fixed rail 51 are contracted, the stop hook 51-1 blocks the slider 63 and compresses the spring 62 to form an auxiliary pop-up force, which effectively avoids the problem of insufficient pop-up stroke when the drawer slide rail bears a large load. For the three-section drawer slide rail, an intermediate rail 53 is further provided between the movable rail 52 and the fixed rail 51 , and its specific structure is the same as that of the existing drawer slide rail, which will not be described in detail here.

[0061] Fig.13 , Fig.14 and Fig.15A structural schematic diagram of another auxiliary ejection mechanism 600 is provided, which differs from the aforementioned auxiliary ejection mechanism in that: the extension arm of the slider 63 is extended at the end, that is, the slider 63 is in a long strip structure, and an opening is provided at one end of the housing 61, and the extension arm of the slider 63 fits in the above opening, one end of the slider 63 in the housing 61 abuts against the spring 62, and the other end extends out of the housing 61, and the stop hook 51-1 on the fixed rail 51 is provided at the end of the extension arm of the slider 63. In this way, the blocking direction of the stop hook 51-1 on the slider 63 is in the same straight line as the sliding direction of the slider 63, and the slider 63 does not twist, so the slider 63 slides more smoothly in the housing 61, and the auxiliary ejection action is more stable and reliable.

[0062] Referring to Figures 6(a), 6(b) and 6(c), an external push-swing rebound device of this embodiment, when in operation, the movable part drives the connecting mechanism 1 to move toward the rebound mechanism 2 along the direction of the arrow in Figure 6(a), and the striker slot 2-3-2 of the rotating arm 2-3 is opposite to the striker 1-3 of the connecting mechanism 1. When the striker 1-3 enters the striker slot 2-3-2, it pushes the rotating arm 2-3 to rotate backward, compressing the torsion spring. At the same time, the sliding positioning pin 2-7 moves in the positioning pin slide 2-2-2 along the direction of the small arrow in Figure 6(a), moves backward through the upper slide 2-2a, and after the sliding positioning pin 2-7 passes over the stop groove 2-2c, the movable part is released. The movable part is pressed inwards again, and the movable part drives the sliding positioning pin 2-7 to move along the downward extending slide 2-2f, and the movable part is released again. At this time, the sliding positioning pin 2-7 disengages from the stop groove 2-2c and is unlocked (as shown in Figure 6 (c)), and the rotating arm 2-3 rebounds under the action of the torsion spring, pushing out the connecting mechanism 1 and the movable part, completing the pressing and rebounding of the movable part.

[0063] The present invention provides an externally mounted push-swing-rebound device, which solves the problem of the large length of the existing push-rebound device by means of swinging and rebounding, and utilizes the rotation locking and push-unlocking rebound of the rotating arm to realize the connection or rebound between the movable part and the stationary part. The structural design is simple and compact, and it is convenient to be used externally at the rear end of the drawer slide rail, making the application of the push-rebound function on drawers of furniture and the like more convenient.

[0064] It should be noted that when an element is referred to as being "fixed to" another element, it may be directly on the other element or there may be a central element. When an element is considered to be "connected to" another element, it may be directly connected to the other element or there may be a central element at the same time. The terms "vertical", "horizontal", "left", "right" and similar expressions used herein are for illustrative purposes only and do not represent the only implementation method.

[0065] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as those commonly understood by those skilled in the art to which the present invention belongs. The terms used herein are only for the purpose of describing specific embodiments and are not intended to limit the present invention.

[0066] The present invention and its embodiments are described schematically above, which is not restrictive. The drawings show only one embodiment of the present invention, and the actual structure is not limited thereto. Therefore, if a person skilled in the art is inspired by it and creatively designs a structure and an embodiment similar to the technical solution without departing from the purpose of the invention, they shall all fall within the protection scope of the present invention.

Claims

1. An externally mounted press-swing-rebound device, comprising a connecting mechanism (1) mounted on a movable part and a rebound mechanism (2) mounted on a stationary part, characterized in that: The rebound mechanism (2) comprises a mounting seat (2-1), a rebound limit seat (2-2), a rotating arm (2-3), a core shaft (2-5), an elastic element (2-6) and a sliding positioning needle (2-7), wherein the rebound limit seat (2-2) is fixed on the mounting seat (2-1), the rotating arm (2-3) is rotatably mounted on the mounting seat (2-1) via the core shaft (2-5), and the elastic element (2-6) is a torsion spring. The elastic element (2-6) is arranged between the mounting seat (2-1) and the rotating arm (2-3) to apply a rebound force to the rotating arm (2-3). Elastic torque force; one end of the rotating arm (2-3) is provided with a striker slot (2-3-2), the connecting mechanism (1) has a striker (1-3), the striker (1-3) can move with the movable part into the striker slot (2-3-2), and push the rotating arm (2-3) to rotate and compress the elastic element (2-6), and at the same time, the striker (1-3) is restricted in the striker slot (2-3-2) after rotation; the sliding positioning pin (2-7) is slidably installed in the sliding track groove (2-3-1) of the rotating arm (2-3), and the rebound limit seat (2- A positioning needle slideway (2-2-2) is provided on one side of the rotating arm (2), one end of the sliding positioning needle (2-7) is located in the positioning needle slideway (2-2-2), and can move or stay in a certain order in the positioning needle slideway (2-2-2) along with the rotation of the rotating arm (2-3); the positioning needle slideway (2-2-2) comprises an upper slideway (2-2a), a lower slideway (2-2b), a stop groove (2-2c), a guide slope (2-2d), an upper extension slideway (2-2e) and a lower extension slideway (2-2f), the upper slideway (2-2a) and the lower slideway (2 -2b), and the connection stop point position of the upper slide (2-2a) and the lower slide (2-2b) corresponds to the guide surface of the upper slide (2-2a); the other ends of the upper slide (2-2a) and the lower slide (2-2b) are connected through a stop groove (2-2c), and the stop groove (2-2c) corresponds to the guide inclined surface (2-2d) inclined in the direction of the lower slide (2-2b); the tail of the upper slide (2-2a) is provided with an upper extension slide (2-2e), and the tail of the lower slide (2-2b) is provided with a lower extension slide (2-2f).

2. The externally mounted pressing, swinging and rebounding device according to claim 1, characterized in that: A limiting column (2-3-3) is provided on one side of the rotating arm (2-3), a limiting slide groove (2-2-1) is provided on the rebound limiting seat (2-2), and the limiting column (2-3-3) is located in the limiting slide groove (2-2-1); when the sliding positioning needle (2-7) is located at the connection stop point position of the upper slideway (2-2a) and the lower slideway (2-2b), the limiting column (2-3-3) abuts against the rebound stop point position of the limiting slide groove (2-2-1).

3. The externally mounted pressing, swinging and rebounding device according to claim 1, characterized in that: The torsion spring sleeve is arranged on the core shaft (2-5), one end of the torsion spring abuts against the torsion spring limiting groove (2-1-1) of the mounting seat (2-1), and the other end of the torsion spring abuts against the torsion spring mounting groove (2-3-5) of the rotating arm (2-3).

4. The externally mounted pressing, swinging and rebounding device according to claim 1, characterized in that: The opening of the striker slot (2-3-2) is provided with a guiding arc surface (2-3-7) extending downwards.

5. The externally mounted pressing, swinging and rebounding device according to claim 1, characterized in that: Limiting steps (2-3-6) are provided on both sides of the sliding track groove (2-3-1) to form a sliding groove with an "I"-shaped cross section, and the tail of the sliding positioning needle (2-7) is a sliding button adapted to the sliding groove with the "I"-shaped cross section.

6. The externally mounted pressing, swinging and rebounding device according to claim 1, characterized in that: The connecting mechanism (1) also has a striker front-to-back adjustment mechanism, which comprises a fixed seat (1-1), an adjustment seat (1-2), an adjustment knob (1-4) and an eccentric shaft (1-5); the striker (1-3) is fixed on the adjustment seat (1-2); the adjustment seat (1-2) and the fixed seat (1-1) are slidably matched in the front-to-back direction; the adjustment knob (1-4) is rotatably mounted on the fixed seat (1-1); the eccentric shaft (1-5) is arranged on the adjustment knob (1-4); the axis of the eccentric shaft (1-5) is eccentrically arranged with the axis of the rotation axis of the adjustment knob (1-4); the adjustment seat (1-2) is provided with a waist-shaped hole (1-2-1) in the left-right direction; and the lower end of the eccentric shaft (1-5) is slidably mounted in the waist-shaped hole (1-2-1).

7. The externally mounted pressing, swinging and rebounding device according to claim 2, characterized in that: It also includes a synchronous connecting member (2-4), the synchronous connecting member (2-4) having an eccentric swing arm (2-4-1), the central axis of the synchronous connecting member (2-4) being coaxially arranged with the core shaft (2-5), the eccentric axis of the eccentric swing arm (2-4-1) being connected to a limit column (2-3-3) of a rotating arm (2-3); the central axes of the two sets of synchronous connecting members (2-4) of the external pressing, swinging and rebounding device are connected via a synchronous rod (400).

8. An externally mounted pressing, swinging and rebounding device according to any one of claims 1 to 7, characterized in that: The movable part is a movable rail (52) of a drawer slide rail (500), the fixed part is a furniture cabinet (300), the connecting mechanism (1) is installed at the rear of the movable rail (52), and the rebound mechanism (2) is fixed in the furniture cabinet (300) via a mounting seat (2-1).

9. The externally mounted pressing, swinging and rebounding device according to claim 8, characterized in that: An auxiliary ejection mechanism (600) is further provided between the fixed rail (51) and the movable rail (52) of the drawer slide rail (500). The auxiliary ejection mechanism (600) comprises a shell (61), a spring (62) and a slider (63). Both ends of the shell (61) are mounted on the movable rail (52) through fixed ears (52-1) on the movable rail (52). The slider (63) is slidably mounted in the shell (61). The spring (62) is mounted in the shell (61), and one end of the spring (62) abuts against the slider (63). A stop hook (51-1) is provided on the fixed rail (51). The stop hook (51-1) cooperates with an extended arm of the slider (63). When the movable rail (52) and the fixed rail (51) are retracted, the stop hook (51-1) blocks the slider (63) and compresses the spring (62) to form an auxiliary ejection force.

Images