Shock absorption cabinet door rebounding device

Abstract

The utility model discloses a damping cabinet door rebounding device which comprises a base. One end of the ejector rod is inserted into the base, a pressing rebound assembly is arranged between the base and the ejector rod, the ejector rod is of a hollow structure, and the end face, away from the base, of the ejector rod is provided with an annular step around the center line of the ejector rod; the buffer head is connected into the annular step, one end of the buffer head protrudes out of the end, away from the base, of the ejector rob, the cabinet door has the damping function, the cabinet door and the structure of the cabinet door are better protected, noise generated when the rebound device is used is reduced, and the use experience is improved.

Description

Technical Field

[0001] The utility model relates to a lock, in particular to a shock-absorbing cabinet door rebounder. Background Art

[0002] In furniture such as wardrobes and cabinets, in order to reduce the need for door handles when opening cabinet doors, a rebounder is usually installed inside the cabinet. When the cabinet door needs to be opened, the cabinet door is pressed, so that the ejector rod on the rebounder pushes out the cabinet door. Currently, the ejector rod on the rebounder is in rigid contact with the cabinet door. When the ejector rod pushes open the cabinet door, the cabinet door and the ejector rod will collide with each other, generating a large amount of noise, and the vibration will be transmitted to the rebounder, affecting the structural stability of the rebounder and the service life of the rebounder. Therefore, there is an urgent need for a rebounder with less vibration to improve the service life of the rebounder. Summary of the Utility Model

[0003] The purpose of the utility model is to provide a shock-absorbing cabinet door rebounder to solve one or more technical problems existing in the prior art, and at least provide a beneficial choice or create conditions.

[0004] The solution of the utility model to solve its technical problems is as follows:

[0005] A shock-absorbing cabinet door rebounder, comprising: a base; an ejector rod, one end of which is inserted into the base, and a pressing and rebounding assembly is arranged between the base and the ejector rod. The ejector rod is of a hollow structure, and an annular step is arranged around the central axis of the ejector rod at the end surface of the ejector rod away from the base; a buffer head, which is connected to the annular step, and one end of the buffer head protrudes from the end of the ejector rod away from the base.

[0006] This technical solution has at least the following beneficial effects: The base is installed inside the cabinet. When pressing one end of the ejector rod outside the base, through the pressing and rebounding assembly between the base and the ejector rod, the ejector rod can be pressed into the base or pushed out in a direction away from the base. When in use, the end of the buffer head protruding from the ejector rod abuts against the cabinet door. When pressing the cabinet door to press the ejector rod into the base, due to the contact between the buffer head and the cabinet door, the vibration transmitted to the cabinet door can be effectively reduced, and the risk of the cabinet door being concave and deformed due to excessive pressure from the ejector rod can be reduced. When pressing the cabinet door to open the cabinet door, the ejector rod pushes out the cabinet door. Using the elastic buffer provided by the buffer head, the impact of the ejector rod on the cabinet door can be effectively weakened. In this way, the rebounder has a shock-absorbing function, better protects the cabinet door and its own structure, reduces the noise generated when using the rebounder, and improves the use experience.

[0007] As a further improvement of the above technical solution, the buffer head includes a first connecting column, a buffer column and a second connecting column connected in sequence. The outer diameter of the buffer column is smaller than the outer diameters of the first connecting column and the second connecting column. The first connecting column abuts against the annular step, and the second connecting column protrudes from the end of the ejector rod away from the base. When the buffer head is connected to the end of the ejector rod, the first connecting column and the second connecting column abut against the inner wall of the ejector rod, playing a main role in connection and positioning. The outer diameter of the buffer column is smaller than the outer diameters of the first connecting column and the second connecting column, which can reduce the contact with the inner wall of the ejector rod and can better produce elastic deformation when subjected to extrusion force, thereby providing a better elastic buffer effect.

[0008] As a further improvement of the above technical solution, the elastic coefficient of the buffer column is smaller than the elastic coefficients of the first connecting column and the second connecting column. When the buffer head is subjected to pressure, the buffer column with a smaller elastic coefficient can better produce elastic deformation along the axial direction, thereby further improving the elastic buffer effect.

[0009] As a further improvement of the above technical solution, reinforcing ribs are formed on the outer side of the buffer column, and the reinforcing ribs are connected between the first connecting column and the second connecting column. The reinforcing ribs are connected to the outer side of the buffer column, which can strengthen the axial supporting force of the buffer column, and by using the reinforcing ribs to abut against the inner wall of the ejector rod, the stability of the installation position of the buffer column in the ejector rod can be improved.

[0010] As a further improvement of the above technical solution, a limiting shoulder is provided at one end of the ejector rod located in the base, a buffer washer is sleeved on the ejector rod, and the buffer washer abuts against the limiting shoulder. When the ejector rod extends in the direction away from the base, the limiting shoulder can effectively prevent the entire ejector rod from coming out of the base. In this way, the limiting shoulder presses against the inner wall of the ejector rod through the buffer washer, which can effectively weaken the vibration generated by the limiting shoulder hitting the inner wall of the base, better protect the internal structure, and reduce the noise generated during use.

[0011] As a further improvement of the above technical solution, the pressing and rebounding assembly includes a tail plug, a hook, a slider and a spring. The slider is slidably connected to the ejector rod along the length direction of the ejector rod, the slider is connected to the ejector rod, the tail plug is connected to the end of the base away from the ejector rod, both ends of the spring abut against the tail plug and the slider respectively, a guiding rib is formed on the slider, the hook is rotatably connected to the tail plug, and the hook can hook or disengage from the guiding rib. When pressing the ejector rod, the ejector rod drives the slider to move towards the tail plug and compresses the spring. When the ejector rod moves to the end of the stroke towards the base, the hook hooks the guiding rib, thereby maintaining the state of the ejector rod being retracted. Pressing the ejector rod again, the hook disengages from the guiding rib, and the elastic force of the spring pushes the ejector rod in the direction away from the tail plug, thereby realizing pushing the ejector rod outwards.

[0012] As a further improvement of the above technical solution, a plurality of slide rails are arranged around the outside of the slider, and chutes are respectively arranged at positions on the inner side of the base that face the plurality of slide rails. The plurality of slide rails are respectively connected to the plurality of chutes in a matching manner. The slider cooperates with the plurality of chutes on the inner side of the base through the plurality of slide rails, thereby preventing the slider from rotating self in the base and realizing stable sliding along the axial direction of the ejector rod in the base.

[0013] As a further improvement of the above technical solution, a positioning ring is arranged at the end of the hook away from the ejector rod, a positioning pin is inserted through the base, and the positioning pin passes through the positioning ring and is connected to the tail plug. After the positioning pin passes through the positioning ring, the hook can rotate around the positioning pin, thereby realizing the rotational connection of the hook in the tail plug.

[0014] As a further improvement of the above technical solution, a stud is connected to the end of the slider facing the ejector rod, and the stud is connected to the inside of the ejector rod through thread matching. The slider is connected to the inside of the ejector rod through the stud, thereby realizing the detachable connection between the slider and the ejector rod, and facilitating the disassembly and assembly of the two.

[0015] As a further improvement of the above technical solution, mounting wings are respectively connected to both sides of the base in the width direction, and mounting holes are respectively arranged on the two mounting wings. When connecting the base to the frame, connecting pieces such as screws or bolts can be passed through the mounting holes and connected to the cabinet body, thereby conveniently installing and fixing the base. Description of the Drawings

[0016] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the following will briefly describe the drawings required for the description of the embodiments. Obviously, the described drawings are only a part of the embodiments of the present invention, rather than all embodiments. Those skilled in the art can also obtain other design solutions and drawings based on these drawings without creative efforts.

[0017] Figure 1 It is the overall top view of the present invention.

[0018] Figure 2 It is Figure 1 The schematic cross-sectional structure view of A-A of

[0019] Figure 3 It is the three-dimensional view of the buffer head of the present invention.

[0020] Figure 4 It is the three-dimensional view of the ejector rod of the present invention.

[0021] Figure 5 It is the bottom view of the slider of the present invention.

[0022] In the accompanying drawings: 1 - base, 11 - mounting wing, 2 - ejector rod, 21 - limiting shoulder, 22 - buffer washer, 3 - buffer head, 31 - first connecting column, 32 - buffer column, 33 - second connecting column, 34 - reinforcing rib, 41 - tail plug, 42 - catch, 43 - slider, 431 - stud, 432 - first guide block, 433 - second guide block, 434 - third guide block, 435 - fourth guide block, 44 - spring, 45 - positioning pin. Detailed implementation mode

[0023] The following will clearly and completely describe the concept, specific structure and technical effects generated by the present utility model in combination with the embodiments and the accompanying drawings, so as to fully understand the purpose, features and effects of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all embodiments. Based on the embodiments of the present utility model, other embodiments obtained by those skilled in the art without creative work shall fall within the scope of protection of the present utility model. In addition, all the connection relationships mentioned in the text do not refer only to the direct connection of components, but refer to the more optimal connection structure that can be formed by adding or reducing connection accessories according to the specific implementation situation. The various technical features in the present invention can be combined with each other without conflict.

[0024] Refer to Figures 1 to 3 , a shock-absorbing cabinet door rebounder, comprising: a base 1; an ejector rod 2, one end of which is inserted into the base 1, a pressing and rebounding assembly is arranged between the base 1 and the ejector rod 2, the ejector rod 2 is of a hollow structure, and an annular step is arranged around the center line of the ejector rod 2 on the end face of the ejector rod 2 far from the base 1; a buffer head 3, which is connected in the annular step, and one end of the buffer head 3 protrudes from one end of the ejector rod 2 far from the base 1.

[0025] In this shock-absorbing cabinet door rebounder, the base 1 is installed in the cabinet body. When pressing one end of the ejector rod 2 outside the base 1, the ejector rod 2 can be pressed into the base 1 or ejected in a direction away from the base 1 through the pressing and rebounding assembly between the base 1 and the ejector rod 2. During use, the protruding end of the buffer head 3 abuts against the cabinet door. When pressing the cabinet door to press the ejector rod 2 into the base 1, due to the contact between the buffer head 3 and the cabinet door, the vibration transmitted to the cabinet door can be effectively reduced, and the risk of the cabinet door being concave and deformed due to excessive pressure of the ejector rod 2 on the cabinet door can be reduced. When pressing the cabinet door to open the cabinet door, the ejector rod 2 ejects the cabinet door, and the elastic buffer provided by the buffer head 3 can effectively weaken the impact of the ejector rod 2 on the cabinet door. In this way, the rebounder has a shock-absorbing function, better protects the cabinet door and its own structure, reduces the noise generated when using the rebounder, and improves the use experience.

[0026] The buffer head 3 can be a flat cylinder. In order to better achieve its buffer and shock absorption function, in this embodiment, the buffer head 3 includes a first connecting column 31, a buffer column 32, and a second connecting column 33 that are connected in sequence. The outer diameter of the buffer column 32 is smaller than the outer diameters of the first connecting column 31 and the second connecting column 33. The first connecting column 31 abuts against the annular step, and the second connecting column 33 protrudes from the end of the ejector rod 2 away from the base 1. When the buffer head 3 is connected to the end of the ejector rod 2, the first connecting column 31 and the second connecting column 33 abut against the inner wall of the ejector rod 2, playing a major role in connection and positioning. The outer diameter of the buffer column 32 is smaller than the outer diameters of the first connecting column 31 and the second connecting column 33, which can reduce the contact with the inner wall of the ejector rod 2 and can better produce elastic deformation when subjected to extrusion force, thereby providing a better elastic buffer effect.

[0027] Furthermore, the elastic coefficient of the buffer column 32 is smaller than the elastic coefficients of the first connecting column 31 and the second connecting column 33. When the buffer head 3 is subjected to pressure, the buffer column 32 with a smaller elastic coefficient can better produce axial elastic deformation, thereby further improving the elastic buffer effect.

[0028] Furthermore, reinforcing ribs 34 are formed on the outer side of the buffer column 32, and the reinforcing ribs 34 are connected between the first connecting column 31 and the second connecting column 33. The reinforcing ribs 34 are connected to the outer side of the buffer column 32, which can strengthen the axial supporting force of the buffer column 32, and by using the reinforcing ribs 34 to abut against the inner wall of the ejector rod 2, the stability of the installation position of the buffer column 32 in the ejector rod 2 can be improved.

[0029] After the ejector rod 2 is pushed outwards in place, in order to reduce the vibration of the ejector rod 2 inside the base 1, as Figure 4 shown, in this embodiment, a limiting shoulder 21 is provided at one end of the ejector rod 2 located inside the base 1, and a buffer washer 22 is sleeved on the ejector rod 2, and the buffer washer 22 abuts against the limiting shoulder 21. When the ejector rod 2 extends in the direction away from the base 1, due to the limitation of the limiting shoulder 21, the entire ejector rod 2 can be effectively prevented from coming out of the base 1. In this way, the limiting shoulder 21 presses against the inner wall of the ejector rod 2 through the buffer washer 22, which can effectively weaken the vibration generated by the limiting shoulder 21 hitting the inner wall of the base 1, better protect the internal structure, and reduce the noise generated during use.

[0030] The pressing and rebounding assembly includes a tail plug 41, a hook 42, a slider 43 and a spring 44. The slider 43 is slidably connected to the inside of the ejector rod 2 along the length direction of the ejector rod 2. The slider 43 is connected to the ejector rod 2. The tail plug 41 is connected to one end of the base 1 away from the ejector rod 2. The two ends of the spring 44 respectively abut against the tail plug 41 and the slider 43. A guiding rib is formed on the slider 43. The hook 42 is rotatably connected to the tail plug 41, and the hook 42 can be hooked to or disengaged from the guiding rib. When the ejector rod 2 is pressed, the ejector rod 2 drives the slider 43 to move towards the tail plug 41 and compresses the spring 44. When the ejector rod 2 moves into the base 1 to the end of the stroke, the hook 42 hooks the guiding rib, so as to maintain the state of the ejector rod 2 being retracted. When the ejector rod 2 is pressed again, the hook 42 disengages from the guiding rib, and the elastic force of the spring 44 pushes the ejector rod 2 in the direction away from the tail plug 41, so as to realize ejecting the ejector rod 2 outwards.

[0031] The guiding rib guides the movement of the hook 42, so that every time the ejector rod 2 is pressed, the hook 42 can be hooked to or disengaged from the guiding rib. As Figure 5 shown, the guiding rib includes a first guiding block 432, a second guiding block 433, a third guiding block 434 and a fourth guiding block 435. The first guiding block 432 and the second guiding block 433 are arranged on both sides of the slider 43 along the width direction of the slider 43. The middle parts of the first guiding block 432 and the second guiding block 433 bulge towards each other. The first guiding block 432, the third guiding block 434 and the fourth guiding block 435 are arranged in sequence along the direction close to the ejector rod 2. The two side faces of the third guiding block 434 facing the first guiding block 432 and the fourth guiding block 435 are both V-shaped. When the hook 42 moves relative to the slider 43, it can be guided to one side of the third guiding block 434 under the guiding of the V-shaped surface on one side of the first guiding block 432, and finally enter the V-shaped surface on the other side of the first guiding block 432 to be hooked. When the ejector rod 2 is pressed again, the fourth guiding block 435 guides the hook 42, so that the hook 42 disengages from the V-shaped surface and disengages from the slider 43 between the first guiding block 432 and the second guiding block 433 under the guiding of the V-shaped surface on the other side.

[0032] For the sliding connection of the slider 43 in the sliding seat, in this embodiment, a plurality of sliding rails are arranged around the outside of the slider 43, and sliding grooves are respectively arranged on the inner side of the base 1 opposite to the plurality of sliding rails. The plurality of sliding rails are respectively connected and matched with the plurality of sliding grooves. The slider 43 is mutually matched with the plurality of sliding grooves on the inner side of the base 1 through the plurality of sliding rails, so as to prevent the slider 43 from rotating in the base 1 and realize stable sliding along the axial direction of the ejector rod 2 in the base 1.

[0033] For the rotational connection of the catch 42 to the end plug 41, in this embodiment, a positioning ring is provided at the end of the catch 42 away from the ejector rod 2. A positioning pin 45 is inserted through the base 1, and the positioning pin 45 passes through the positioning ring and is connected to the end plug 41. After the positioning pin 45 passes through the positioning ring, the catch 42 can rotate around the positioning pin 45, thereby realizing the rotational connection of the catch 42 within the end plug 41.

[0034] In some embodiments, a stud 431 is connected to the end of the slider 43 facing the ejector rod 2, and the stud 431 is connected to the inside of the ejector rod 2 by a threaded fit. The slider 43 is threadedly connected to the inside of the ejector rod 2 through the stud 431, thereby realizing the detachable connection between the slider 43 and the ejector rod 2, and facilitating the disassembly and assembly of the two.

[0035] In some embodiments, mounting wings 11 are respectively connected to both sides of the base 1 in the width direction, and mounting holes are respectively provided on the two mounting wings 11. When connecting the base 1 to the frame, a connecting member such as a screw or a bolt can be passed through the mounting hole and connected to the cabinet body, thereby conveniently installing and fixing the base 1.

[0036] The above has specifically described the preferred embodiments of the present invention, but the present invention is not limited to the above embodiments. Those skilled in the art can make various equivalent variations or substitutions without departing from the spirit of the present invention, and these equivalent variations or substitutions are all included within the scope defined by the claims of this application.

Claims

1. A shock-absorbing cabinet door rebounder, characterized in that: include: Base (1); A push rod (2), one end of which is inserted into the base (1); a press-rebound assembly is provided between the base (1) and the push rod (2); the push rod (2) is a hollow structure; an end surface of the push rod (2) away from the base (1) is provided with an annular step around the center line of the push rod (2); A buffer head (3) is connected to the annular step, and one end of the buffer head (3) protrudes from an end of the push rod (2) away from the base (1).

2. The shock-absorbing cabinet door rebounder according to claim 1, characterized in that: The buffer head (3) comprises a first connecting column (31), a buffer column (32) and a second connecting column (33) which are connected in sequence, the outer diameter of the buffer column (32) is smaller than the outer diameter of the first connecting column (31) and the outer diameter of the second connecting column (33), the first connecting column (31) abuts against the annular step, and the second connecting column (33) protrudes from an end of the push rod (2) away from the base (1).

3. The shock-absorbing cabinet door rebounder according to claim 2, characterized in that: The elastic coefficient of the buffer column (32) is smaller than the elastic coefficient of the first connecting column (31) and the elastic coefficient of the second connecting column (33).

4. The shock-absorbing cabinet door rebounder according to claim 3, characterized in that: A reinforcing rib (34) is formed on the outer side of the buffer column (32), and the reinforcing rib (34) is connected between the first connecting column (31) and the second connecting column (33).

5. The shock-absorbing cabinet door rebounder according to claim 1, characterized in that: A limiting shoulder (21) is provided at one end of the push rod (2) located inside the base (1), and a buffer washer (22) is sleeved on the push rod (2), the buffer washer (22) abutting against the limiting shoulder (21).

6. The shock-absorbing cabinet door rebounder according to claim 1, characterized in that: The press-rebound assembly comprises a tail plug (41), a hook (42), a slider (43) and a spring (44); the slider (43) is slidably connected to the push rod (2) along the length direction of the push rod (2); the slider (43) and the push rod (2) are connected to each other; the tail plug (41) is connected to an end of the base (1) away from the push rod (2); two ends of the spring (44) respectively abut against the tail plug (41) and the slider (43); a guide rib is formed on the slider (43); the hook (42) is rotatably connected to the tail plug (41); the hook (42) can be hooked on or detached from the guide rib.

7. The shock-absorbing cabinet door rebounder according to claim 6, characterized in that: A plurality of slide rails are arranged around the outer side of the slider (43), and slide grooves are arranged around the inner side of the base (1) at positions facing the plurality of slide rails, and the plurality of slide rails are respectively connected to the plurality of slide grooves.

8. The shock-absorbing cabinet door rebounder according to claim 6, characterized in that: A positioning ring is provided at the end of the hook (42) away from the push rod (2), and a positioning pin (45) is inserted into the base (1). The positioning pin (45) passes through the positioning ring and is connected to the tail plug (41).

9. The shock-absorbing cabinet door rebounder according to claim 6, characterized in that: The end of the sliding block (43) facing the push rod (2) is connected with a stud (431), and the stud (431) is connected to the push rod (2) through threaded fitting.

10. The shock-absorbing cabinet door rebounder according to claim 1, characterized in that: The base (1) is respectively connected to mounting wings (11) on both sides along the width direction, and the two mounting wings (11) are respectively provided with mounting holes.

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