Return device with adjustment mechanism

Abstract

This utility model discloses a slow-return device with an adjustment mechanism, comprising a base, a movable space, a first guide part, a telescopic member, a second guide part, an elastic member, and an adjustment mechanism. The movable space is recessed inside the base. The first guide part is slidably connected to the other side of the base away from the movable space. A telescopic member is provided between the first guide part and the base. The second guide part is slidably disposed in the movable space. The two ends of the elastic member are respectively installed on the front end of the first guide part and on the base. The adjustment mechanism is installed on the second guide part and abuts against one side wall of the movable space. The adjustment mechanism can drive the second guide part to slide back and forth along the movable space to change an initial length of the elastic member, thereby adjusting a tension to displace the first guide part in the direction of the movable space.

Description

Technical Field

[0001] This utility model relates to a slow-return device with an adjustment mechanism, specifically referring to a slide rail that can be used in furniture. Background Technology

[0002] The existing technology disclosed in patent CN201987016U involves drawer slides commonly installed in furniture systems (e.g., drawers). A drawer slide consists of a fixed base, a locking block, and a spring. The spring's two ends are respectively mounted on the fixed base and the locking block. When a user applies force to the drawer and moves it in the unfolding direction, the locking block causes the spring to extend, generating an elastic force. When the user applies force to the drawer and moves it in the closing direction, the locking block is driven by the spring's tension, causing the drawer to automatically return and close. However, since the drawer's automatic return and closing relies on the spring's tension, problems arise. When the drawer is overloaded, the spring's tension may not be sufficient to automatically return the drawer, while when the drawer is underloaded, the spring's tension can cause noise when closing the drawer. This is the area that industry professionals urgently need to research and improve. Summary of the Invention

[0003] This utility model is a slow-return device with an adjustment mechanism, comprising a base, a first guide part, a second guide part, an elastic element, a telescopic element, and an adjustment mechanism. The base has a recessed movable space. The first guide part is slidably connected to the side of the base away from the movable space. The telescopic element is disposed between the first guide part and the base. The second guide part is slidably disposed in the movable space. The elastic element is mounted at both ends on the front end of the first guide part and the base, respectively, and passes around and abuts against the second guide part. The adjustment mechanism is mounted on the second guide part and abuts against one side wall of the movable space. The adjustment mechanism can drive the second guide part to slide back and forth along the movable space to change an initial length of the elastic element, thereby adjusting a pulling force.

[0004] Preferably, when the first guide part is subjected to force and displaces away from the active space, the first guide part stretches the elastic member, causing it to undergo elastic deformation and generate the tension. Simultaneously, the first guide part drives the telescopic member to extend. When the first guide part is not subjected to force, its elastic member elastically resets and drives the first guide part to displace towards the active space. Simultaneously, the first guide part pushes the telescopic member to reset, generating a resistance. The tension of the elastic member is greater than the resistance of the telescopic member, causing the first guide part to slowly retract.

[0005] Preferably, the elastic member has an elastic front end and an elastic rear end. The base is provided on one side of the active space for the elastic front end to be installed in a first fixing part, and the front end of the first guide part is provided on the lower side for the elastic rear end to be installed. A rotatable guide wheel is connected to the side of the second guide part away from the first guide part, so that the elastic member can pass around and abut against it.

[0006] Preferably, the elastic member has an elastic front end and an elastic rear end, and the front end of the first guide portion is provided with a fifth fixing portion on the upper side for mounting the elastic front end, and the front end of the first guide portion is provided with a second fixing portion on the lower side for mounting the elastic rear end. A rotatable guide wheel is connected to the side of the second guide portion away from the first guide portion, so that the elastic member can pass around and abut against it.

[0007] Preferably, the second guide portion has two protruding ear pieces at the other end away from the guide wheel, and the adjustment mechanism has an adjustment member and a guide member for the adjustment member to be rotatably sleeved. The two ear pieces are respectively provided with an ear hole for the guide member to pass through tightly. The adjustment member is disposed between the two ear pieces to form a pressure stop. One end of the guide member abuts against the side wall of the active space.

[0008] Preferably, the telescopic member has a first end and a second end, a third fixing part is provided on the lower side of the front end of the first guide part, the third fixing part is connected to the first end, the second fixing part is adjacent to the third fixing part, and the base is provided with a fourth fixing part connected to the second end.

[0009] Preferably, the base has a sliding groove extending horizontally on the upper and lower sides of the active space, and the upper and lower opposite sides of the second guide part are inserted into the two sliding grooves to slide back and forth.

[0010] Preferably, a guide groove is provided on the side of the base away from the active space along the horizontal direction, and a guide hole is provided at the rear end of the first guide part to align with the guide groove. An operating block is connected between the guide hole and the guide groove.

[0011] Preferably, the operating block has a first support portion extending through the guide hole on one side, and a second support portion protruding from the other side of the operating block away from the first support portion and inserted into the guide groove.

[0012] Preferably, the end of the guide groove away from the active space is bent and extended to have a limiting groove. When the first support part abuts against the top of the guide hole, its second support part abuts against the guide groove and moves back to its original position. When the first support part abuts against the bottom of the guide hole, its second support part is inserted into the limiting groove, so that the first guide part is limited. Attached Figure Description

[0013] Figure 1 This is a perspective view of the slow-return device with an adjustment mechanism according to the present invention.

[0014] Figure 2 for Figure 1 A cross-sectional view of AA.

[0015] Figure 3 This is an exploded view of the slow-return device with an adjustment mechanism according to the present invention.

[0016] Figure 4 This is another exploded view of the slow-return device with an adjustment mechanism according to this utility model.

[0017] Figure 5 This is a schematic diagram of the adjusting component of this utility model moving in the first rotation direction.

[0018] Figure 6 for Figure 5 Rear view.

[0019] Figure 7 This is a schematic diagram of the adjusting component of this utility model moving in the second rotation direction.

[0020] Figure 8 This is a schematic diagram of the second guide section of this utility model facing the second direction.

[0021] Figure 9 for Figure 8 Rear view.

[0022] Figure 10 This is a schematic diagram of the second guide section of this utility model facing the first direction.

[0023] Figure 11 This is a schematic diagram of another embodiment of the slow-return device with an adjustment mechanism of the present invention.

[0024] In the figure, the reference numerals include:

[0025] 101: Base

[0026] 10: Activity Space

[0027] 101: Side Wall

[0028] 11: First fixing part

[0029] 12: Fourth fixing part

[0030] 13: Guide groove

[0031] 131: Limiting groove

[0032] 14: Slide

[0033] 2: First Guiding Section

[0034] 21: Second fixing part

[0035] 22: Third fixing part

[0036] 23: Guide hole

[0037] 24: Fifth Fixed Part

[0038] 3: Second Guiding Section

[0039] 31: Guide wheel

[0040] 32: Earplate

[0041] 321: Ear hole

[0042] 4: Elastic element

[0043] 41: Flexible Front End

[0044] 42: Elastic backend

[0045] 43: Initial Length

[0046] 5: Telescopic components

[0047] 51: First end

[0048] 52: Second end

[0049] 6: Adjustment of the organization

[0050] 61: Adjustment parts

[0051] 62: Guiding component

[0052] 7: Operation Block

[0053] 71: First Support Section

[0054] 72: Second Support Section

[0055] D1: First Direction

[0056] D2: Second Direction

[0057] R1: First rotation direction

[0058] R2: Second rotation direction Detailed Implementation

[0059] The present invention will now be described in further detail with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present invention and not intended to limit it. Furthermore, it should be noted that, for ease of description, the accompanying drawings show only the parts relevant to the present invention, not the entire structure.

[0060] Example

[0061] Please see Figures 1 to 4As shown, this utility model is a slow-return device with an adjustment mechanism, comprising: a base 1, a first guide part 2, a second guide part 3, an elastic element 4 (e.g., a tension spring), a telescopic element 5, an adjustment mechanism 6, and an operating block 7. The base 1 has a recessed movable space 10. The first guide part 2 is slidably connected to the side of the base 1 away from the movable space 10. The telescopic element 5 is disposed between the first guide part 2 and the base 1. The second guide part 3 is slidably disposed in the movable space 10. The two ends of the elastic element 4 are respectively mounted on the front end of the first guide part 2 and the base 1. The adjustment mechanism 6 is mounted on the second guide part 3, and one end of the adjustment mechanism 6 abuts against the movable space 10. One side wall 101 of space 10, the base 1 has a first fixing part 11, a fourth fixing part 12, a guide groove 13 and a sliding groove 14. The first fixing part 11 is provided on one side of the active space 10, and the fourth fixing part 12 is provided on the other side of the active space 10. The guide groove 13 is provided horizontally on the side of the base 1 away from the active space 10. The end of the guide groove 13 away from the active space 10 is bent and extended to form a limiting groove 131. The sliding groove 14 is provided horizontally on the upper and lower sides of the active space 10, and the upper and lower opposite sides of the second guide part 3 are inserted into the two sliding grooves 14. A guide portion 2 has a second fixing portion 21, a third fixing portion 22, and a guide hole 23. The elastic member 4 has an elastic front end 41 and an elastic rear end 42. The telescopic member 5 has a first end 51 and a second end 52. The base 1 is provided with a fourth fixing portion 12 that connects to the second end 52. The front end of the first guide portion 2 has a second fixing portion 21 on its lower side for mounting the elastic rear end 42. The elastic front end 41 is then mounted on the first fixing portion 11. The front end of the first guide portion 2 has a third fixing portion 22 adjacent to the second fixing portion 21. The third fixing portion 22 connects to the first end 51. The second fixing portion 21 is adjacent to the third fixing portion 22. The rear end of the guide portion 2 has a guide hole 23 for aligning with the guide groove 13. An operating block 7 is connected between the guide hole 23 and the guide groove 13. A first support portion 71 extends from one side of the operating block 7, passing through the guide hole 23. A second support portion 72 protrudes from the other side of the operating block 7 away from the first support portion 71 and is inserted into the guide groove 13. A rotatable guide wheel 31 is connected to the side of the second guide portion 3 away from the first guide portion 2. The guide wheel 31 is passed around and supported by the elastic member 4. Two lugs 32 protrude from the other end of the second guide portion 3 away from the guide wheel 31. The adjustment mechanism 6 has an adjustment member 61 and a guide member 62 for the adjustment member 61 to be rotatably fitted.Each of the two ear pieces 32 has an ear hole 321 through which the guide member 62 passes for a tight fit. One end of the guide member 62 abuts against the side wall 101 of the movable space 10, and the adjusting member 61 is disposed between the two ear pieces 32.

[0062] This utility model uses the telescopic component 5 as a spring (e.g., a compression spring), a hydraulic rod, a pneumatic rod, or other element that can return to its original position after being compressed. This utility model is described using a hydraulic rod as an example, and the example is not intended to limit the patent scope of this utility model.

[0063] In this invention, the adjusting member 61 is a nut with internal threads (not shown in the figure), and the guiding member 62 is a screw with external threads (not shown in the figure). The nut is rotatably fitted onto the screw, or the nut and the screw can be fitted together by a ball (not shown in the figure).

[0064] Please see Figure 5 and Figure 6 As shown, when the adjusting member 61 of the adjusting mechanism 6 is subjected to a force in a first rotation direction R1, the adjusting member 61 rotates and displaces relative to the guide member 62 in the same direction. The adjusting member 61 pushes against at least one ear piece 32 of the second guide part 3, and one end of the guide member 62 pushes against the side wall 101 of the movable space 10, causing the second guide part 3 to displace in the movable space 10 in a first direction D1. The upper and lower opposite sides of the second guide part 3 displace in the same direction on the two sliding grooves 14, and the guide wheel 31 of the second guide part 3 simultaneously stretches an initial length 43 of the elastic member 4, thereby generating a tensile force of elastic deformation in the elastic member 4. When the force on the adjusting member 61 is stopped, the adjusting member 61 is positioned between the two ear pieces 32 by the self-elasticity of the two ear pieces 32 to form a pressure.

[0065] Please see Figure 7 As shown, when the adjusting member 61 of the adjusting mechanism 6 is rotated in a second rotation direction R2 opposite to the first rotation direction R1, the adjusting member 61 rotates and displaces relative to the guide member 62 in the same direction. The adjusting member 61 pushes against at least another lug 32 of the second guide part 3, and one end of the guide member 62 is pushed by the side wall 101, causing the second guide part 3 to displace in the movable space 10 in a second direction D2 opposite to the first direction D1. The upper and lower opposite sides of the second guide part 3 displace in the same direction on the two sliding grooves 14, and the guide wheel 31 of the second guide part 3 synchronously drives the initial length 43 of the elastic member 4 to reset, thereby generating the elastic reset tension of the elastic member 4.

[0066] Please see Figure 8 and Figure 9As shown, when the first guide part 2 is subjected to force and displaces in a direction away from the active space 10, that is, displaces in the second direction D2, the first support part 71 of the operating block 7 abuts against the top of the guide hole 23, the second support part 72 of the operating block 7 displaces in the same direction as the guide groove 13 of the base 1, and the second fixing part 21 of the first guide part 2 stretches the elastic front end 41 of the elastic member 4, causing it to generate elastic deformation again and forming the tension. The first guide part 2 simultaneously drives the telescopic member 5 to extend and generate a resistance. The second support part 72 is placed into the limiting groove 131 of the guide groove 13 to form a limit. The first support part 71 moves from above the guide hole 23 to below the guide hole 23.

[0067] Please see Figure 10 As shown, when the first support portion 71 of the operating block 7 is subjected to an external force, the first support portion 71 moves from below the guide hole 23 to above the guide hole 23, the second support portion 72 of the operating block 7 disengages from the limiting groove 131, and the second support portion 72 is placed in the guide groove 13. The elastic member 4 elastically resets and drives the first guide portion 2 to move toward the active space 10, that is, to move toward the first direction D1. The first guide portion 2 simultaneously pushes the telescopic member 5 to reset. At this time, the tension of the elastic member 4 is greater than the resistance of the telescopic member 5, so that the first guide portion 2 slowly retracts.

[0068] Through the above actions, by operating the adjustment mechanism 6, the second guide part 3 is precisely positioned and displaced in the activity space 10. The second guide part 3 is linked to the elastic element 4, so that the initial length 43 of the elastic element 4 is changed to adapt to the product load. This is used to fine-tune the initial length 43, which has the effect of precisely controlling the tension caused by the elastic deformation of the initial length 43.

[0069] Please see Figure 11 As shown, in another embodiment of the present invention, a fifth fixing part 24 is provided on the upper side of the front end of the first guide part 2, and the elastic front end 41 of the elastic member 4 is installed on the fifth fixing part 24.

Claims

1. A slow-return device with an adjustment mechanism, comprising a base (1), a first guide part (2), and a telescopic member (5), wherein the first guide part (2) is slidably connected to the base (1), and the telescopic member (5) is disposed between the base (1) and the first guide part (2), characterized in that: An active space (10) is recessed inside the base (1), and the first guide part (2) is disposed on the other side away from the active space (10); A second guide section (3) is slidably positioned in the active space (10); An elastic member (4) is mounted at both ends on the front end of the first guide part (2) and the base (1), respectively, and the elastic member (4) passes around and abuts against the second guide part (3); and An adjustment mechanism (6) is installed on the second guide part (3), and the adjustment mechanism (6) abuts against one side wall (101) of the active space (10). The adjustment mechanism (6) can drive the second guide part (3) to slide back and forth along the active space (10) to change an initial length (43) of the elastic member (4), thereby adjusting a tension.

2. The slow-return device with an adjustment mechanism according to claim 1, characterized in that, When the first guide part (2) is subjected to force and moves away from the active space (10), the first guide part (2) stretches the elastic member (4), causing it to undergo elastic deformation and generate the tension. The first guide part (2) simultaneously drives the telescopic member (5) to extend. When the first guide part (2) is not subjected to force, its elastic member (4) elastically resets and drives the first guide part (2) to move towards the active space (10). The first guide part (2) simultaneously pushes the telescopic member (5) to reset to generate a resistance. The tension of the elastic member (4) is greater than the resistance of the telescopic member (5), causing the first guide part (2) to slowly retract.

3. The slow-return device with an adjustment mechanism according to claim 1, characterized in that, The elastic element (4) has an elastic front end (41) and an elastic rear end (42). The base (1) is provided on one side of the active space (10) for the elastic front end (41) to be installed on a first fixing part (11). The front end of the first guide part (2) is provided on the lower side for the elastic rear end (42) to be installed. The second guide part (3) is connected to a rotating guide wheel (31) on the side away from the first guide part (2) for the elastic element (4) to pass around and abut.

4. The slow-return device with an adjustment mechanism according to claim 1, characterized in that, The elastic member (4) has an elastic front end (41) and an elastic rear end (42). The front end of the first guide part (2) is provided with a fifth fixing part (24) for mounting the elastic front end (41) on the upper side. The front end of the first guide part (2) is provided with a second fixing part (21) for mounting the elastic rear end (42) on the lower side. A rotating guide wheel (31) is connected to the side of the second guide part (3) away from the first guide part (2) for the elastic member (4) to bypass and abut.

5. The slow-return device with an adjustment mechanism according to claim 3 or 4, characterized in that, The second guide part (3) has two ear pieces (32) protruding from the other end away from the guide wheel (31), and the adjustment mechanism (6) has an adjustment member (61) and a guide member (62) for the adjustment member (61) to be rotatably sleeved. The two ear pieces (32) are respectively provided with an ear hole (321) for the guide member (62) to pass through tightly. The adjustment member (61) is arranged between the two ear pieces (32) to form a pressure. One end of the guide member (62) abuts against the side wall (101) of the active space (10).

6. The slow-return device with an adjustment mechanism according to claim 3 or 4, characterized in that, The telescopic member (5) has a first end (51) and a second end (52). The front end of the first guide part (2) is provided with a third fixing part (22) on the lower side. The third fixing part (22) is connected to the first end (51). The second fixing part (21) is adjacent to the third fixing part (22). The base (1) is provided with a fourth fixing part (12) connected to the second end (52).

7. The slow-return device with an adjustment mechanism according to claim 1, characterized in that, The base (1) extends horizontally on the upper and lower sides of the active space (10) and has a sliding groove (14) respectively. The second guide part (3) is inserted into the two sliding grooves (14) on the upper and lower opposite sides and slides back and forth.

8. The slow-return device with an adjustment mechanism according to claim 1, characterized in that, A guide groove (13) is provided on the other side of the base (1) away from the activity space (10) along the horizontal direction. A guide hole (23) is provided at the rear end of the first guide part (2) to align with the guide groove (13). An operating block (7) is connected between the guide hole (23) and the guide groove (13).

9. The slow-return device with an adjustment mechanism according to claim 8, characterized in that, The operating block (7) has a first support portion (71) extending through the guide hole (23) on one side, and a second support portion (72) protruding from the other side of the operating block (7) away from the first support portion (71) and inserted into the guide groove (13).

10. The slow-return device with an adjustment mechanism according to claim 9, characterized in that, The guide groove (13) extends from one end away from the active space (10) with a limiting groove (131). When the first support part (71) abuts against the top of the guide hole (23), its second support part (72) abuts against the guide groove (13) and moves back. When the first support part (71) abuts against the bottom of the guide hole (23), its second support part (72) is inserted into the limiting groove (131), so that the first guide part (2) forms a limit.

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