Drawer slide self-priming device

Abstract

The present invention discloses a self-priming device for a drawer slide rail, comprising a shell, in which a swing rod assembly and a self-priming assembly are arranged. The swing rod assembly rotates with the push and pull of the drawer, and is provided with a cam and a self-priming groove, and the self-priming groove is arranged on the surface of the cam. The self-priming assembly comprises a self-priming lever and a self-priming spring, one end of the self-priming lever is connected to a self-priming spring in a stretched state, and the other end slides with the cam to slide into or out of the self-priming groove. When the present invention is used, the user only needs to toggle the swing rod assembly, and under the action of the self-priming spring, the self-priming lever automatically slides into the self-priming groove, the swing rod assembly stops swinging, and the drawer is completely closed.

Description

Technical Field

[0001] The invention belongs to the field of furniture hardware accessories, and in particular relates to a drawer slide rail self-priming device suitable for furniture such as drawers. Background Art

[0002] At present, drawers on the market are generally equipped with drawer slides to ensure smooth opening and closing of the drawers. However, during the closing process, users must push and release the drawers gently to ensure that the drawers are closed properly. Otherwise, it is easy to produce collision noise due to excessive closing force, or even pop out the drawer. Therefore, it is necessary to optimize the drawer slides. Summary of the invention

[0003] The technical problem solved by the present invention is to provide a drawer slide rail self-priming device, which can assist users in closing the drawer.

[0004] The above technical problem is solved by the following technical solution: A drawer slide self-priming device, comprising a shell, in which a swing rod assembly and a self-priming assembly are arranged. The swing rod assembly rotates with the push and pull of the drawer, and is provided with a cam and a self-priming groove, and the self-priming groove is arranged on the surface of the cam. The self-priming assembly includes a self-priming lever and a self-priming spring, one end of the self-priming lever is connected to a self-priming spring in a stretched state, and the other end is slidably matched with the cam to slide into or out of the self-priming groove.

[0005] Compared with the background technology, the present invention has the following beneficial effects: when the present invention is used, the user only needs to move the swing rod assembly, and under the action of the self-priming spring, the self-priming lever automatically slides into the self-priming groove, the swing rod assembly stops swinging, and the drawer is completely closed.

[0006] In one embodiment, the self-priming assembly further includes an adjusting lever, one end of the adjusting lever extends out of the housing to form a wrench, and the self-priming spring is connected between the end of the adjusting lever close to the wrench and the self-priming lever. The housing is provided with at least two adjusting steps for fixing the wrench.

[0007] In one embodiment, an energy storage assembly is provided in the housing, and the energy storage assembly includes an energy storage spring, a sleeve rod, a sliding sleeve and a positioning rod, the energy storage spring is clamped between the sleeve rod and the sliding sleeve, the sliding sleeve reciprocates on the sleeve rod and is locked by the positioning rod. The swing rod assembly rotates with the push and pull of the drawer, pushing the sliding sleeve to compress the energy storage spring or triggering the positioning rod to release the sliding sleeve.

[0008] In one embodiment, the housing is provided with a positioning buckle. The swing arm assembly is provided with a self-priming groove. The positioning rod is linked with the sliding sleeve and is separated or engaged with the positioning buckle, or is separated or engaged with the self-priming groove.

[0009] In one of the embodiments, the sleeve rod of the energy storage assembly abuts against an end of the adjusting lever away from the wrench, and the adjusting lever pushes the sleeve rod to move axially.

[0010] In one of the embodiments, a buffer is further provided in the housing, and the buffer is linked with the rocker assembly.

[0011] In one embodiment, the rocker rod assembly is provided with a rocker rod and a push rod. The rocker rod and the push rod rotate coaxially with the cam. The rocker rod rotates with the drawer being pushed and pulled. The cam triggers the compression of the energy storage spring, and the push rod triggers the release of the energy storage spring and the compression buffer.

[0012] In one embodiment, the cam surface is provided with a virtual groove, the push rod is provided with a protruding push rod block, the push rod block extends into the virtual groove, and the cam drives the push rod to rotate through the virtual groove and the push rod block.

[0013] The above embodiments can be arbitrarily combined to form a combined embodiment according to product design requirements and on the premise that the technical solutions are not contradictory. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 This is a schematic diagram of the present invention installed in a drawer;

[0015] Figure 2 It is a schematic diagram of the installation state of the present invention and the drawer slide rail;

[0016] Figure 3 It is a structural schematic diagram of the present invention in a critical matching state during the drawer opening and closing process;

[0017] Figure 4 It is a structural schematic diagram of the instantaneous operating state of the present invention during the drawer opening and closing process;

[0018] Figure 5 It is a schematic diagram of the structure of the present invention in an energy storage state when the drawer is completely closed;

[0019] Figure 6 It is a schematic diagram of the exploded structure of the self-priming device in the present invention;

[0020] Figure 7 It is another exploded structural schematic diagram of the self-priming device in the present invention;

[0021] Figure 8 It is a schematic diagram of the exploded structure of the locking release mechanism in the present invention.

[0022] Wherein: 1 self-priming device, 2 locking release mechanism, 21 fixed seat, 22 adjusting screw, 23 adjusting slide seat, 24 swing hook, 3 drawer slide rail, 4 energy storage assembly, 41 energy storage spring, 42 sleeve rod, 43 sliding sleeve, 44 positioning rod, 44a first positioning rod, 44b second positioning rod, 44c third positioning rod, 44d first positioning pin, 44e second positioning pin, 44f positioning guide groove, 44g positioning spring, 45 positioning buckle, 5 rocker rod assembly, 51 rocker rod, 52 push rod, 52a push rod block, 53 cam, 54 self-priming groove, 55 virtual position groove, 6 self-priming assembly, 61 self-priming lever, 62 self-priming spring, 63 adjusting lever, 64 adjusting step, 7 buffer. DETAILED DESCRIPTION

[0023] The specific implementation of the present invention is further described in detail below in conjunction with the accompanying drawings and examples. The following examples are used to illustrate the present invention, but are not intended to limit the scope of the present invention.

[0024] like Figure 1 and Figure 2 As shown, the self-priming device 1 of this embodiment is used in conjunction with the locking release mechanism 2. A crossbeam is set up on the drawer slide rails 3, and the self-priming device 1 is installed on the crossbeam and located between the two drawer slide rails 3. The locking release mechanism 2 is installed at the bottom of the drawer, and gradually separates from or gradually engages with the self-priming device 1 as the drawer is pushed or pulled.

[0025] like Figure 3-Figure 7 As shown, the self-priming device 1 includes a housing, in which an energy storage assembly 4, a swing arm assembly 5, a self-priming assembly 6 and a buffer 7 are installed. The housing is also provided with a positioning buckle 45 and a positioning guide groove 44f integrally formed therewith.

[0026] The energy storage assembly 4 in this embodiment is used to realize the automatic opening of the drawer. The energy storage assembly 4 is provided with an energy storage spring 41, a sleeve rod 42, a sliding sleeve 43, a positioning rod 44 and a positioning buckle 45. The sliding sleeve 43 is inserted into the sleeve rod 42, and the energy storage spring 41 is clamped between the sleeve rod 42 and the sliding sleeve 43. The sliding sleeve 43 slides back and forth on the sleeve rod 42 and is locked by the positioning rod 44. The swing rod assembly 5 rotates with the push and pull of the drawer, pushing the sliding sleeve 43 to compress the energy storage spring 41 or triggering the positioning rod 44 to release the sliding sleeve 43 and the energy storage spring 41. A positioning spring 44g is provided between the sliding sleeve 43 and the positioning rod 44. The positioning rod 44 is linked with the sliding sleeve 43 and is separated or engaged with the positioning buckle 45, or is separated or engaged with the self-priming groove 54 of the swing rod assembly 5.

[0027] like Figure 3 and Figure 4 As shown, when the drawer is in an open state and the user pushes the drawer to close, the swing arm assembly 5 pushes the sliding sleeve 43 to compress the energy storage spring 41, and when the positioning rod 44 is engaged with the positioning buckle 45, the energy storage spring 41 stores energy. Figure 5As shown, when the drawer is in a closed state, the user presses the drawer, the rocker assembly 5 triggers the positioning rod 44 to separate from the positioning buckle 45, and the energy storage spring 41 releases energy to automatically open the drawer.

[0028] In this embodiment, the housing is provided with a positioning guide groove 44f for guiding the movement of the positioning rod 44. The positioning rod 44 includes a first positioning rod 44a, a second positioning rod 44b and a third positioning rod 44c. The free end of the first positioning rod 44a cooperates with the positioning buckle 45 or the self-priming groove 54, and the other end is connected to the second positioning rod 44b through the first positioning pin 44d. The other end of the second positioning rod 44b is connected to the housing shaft through the second positioning pin 44e. One end of the third positioning rod 44c is pivotally connected to the sliding sleeve 43, and the other end moves along the positioning guide groove 44f. The positioning spring 44g is located between the first positioning rod 44a and the sliding sleeve 43. The first positioning rod 44a and the sliding sleeve 43 are respectively provided with spring columns, and the two ends of the positioning spring 44g are respectively sleeved on the spring columns.

[0029] The positioning guide groove 44f of the housing is composed of the third positioning rod 44c guide arc and the first positioning pin 44d guide arc, and the two guide arcs intersect to form a Y-shaped structure. During the linkage process between the positioning rod 44 and the sliding sleeve 43, the positioning guide groove 44f guides the third positioning rod 44c and the first positioning pin 44d to move.

[0030] The self-priming assembly 6 in this embodiment is used to realize the self-priming closing of the drawer at the end of the closing process. The self-priming assembly 6 includes a self-priming lever 61, a self-priming spring 62 and an adjusting lever 63. One end of the self-priming lever 61 is slidably matched with the self-priming groove 54 of the rocker assembly 5, and the other end is connected to a self-priming spring 62 in a stretched state. One end of the adjusting lever 63 is against the sleeve rod 42 of the energy storage assembly 4 and pushes the sleeve rod 42 to move axially, and the other end of the adjusting lever 63 extends out of the shell to form a wrench, and the self-priming spring 62 is connected between the end of the adjusting lever 63 close to the wrench and the self-priming lever 61. The shell is provided with at least two adjustment steps 64 for adjusting the position of the wrench. The user can adjust the position of the wrench according to the load of the drawer. When the drawer is heavily loaded, the wrench can be turned to increase the tension of the self-priming spring 62 and the compression of the energy storage spring 41 simultaneously, thereby increasing the automatic closing force and the automatic opening force; when the drawer is heavily loaded, the wrench can be turned to reduce the tension of the self-priming spring 62 and the compression of the energy storage spring 41 simultaneously, thereby reducing the automatic closing force and the automatic opening force.

[0031] The buffer 7 in this embodiment is used to achieve slow closing of the drawer and avoid collision noise when the drawer is closed. The buffer 7 is installed in the housing and keeps linkage with the swing rod assembly 5.

[0032] The swing rod assembly 5 in this embodiment is used to trigger the energy storage assembly 4, the self-priming assembly 6 and the buffer 7. The swing rod assembly 5 is provided with a swing rod 51, a push rod 52, a cam 53, a self-priming groove 54 and a virtual position groove 55. The swing rod 51 and the push rod 52 rotate coaxially with the cam 53, and the self-priming groove 54 and the virtual position groove 55 are arranged on the surface of the cam 53. The swing rod 51 rotates with the push and pull of the drawer and gradually separates or gradually engages with the locking release mechanism 2, drives the sliding sleeve 43 to compress the energy storage spring 41 through the cam 53 and the positioning rod 44, and compresses the buffer 7 and triggers the release of the energy storage spring 41 through the push rod 52.

[0033] The push rod 52 is provided with a protruding push rod block 52a, which extends into the virtual position groove 55 of the cam 53. During the rotation of the rocker arm 51, the cam 53 drives the push rod 52 to rotate through the virtual position groove 55 and the push rod block 52a. At the same time, the self-priming groove 54 of the cam 53 slides with the self-priming lever 61 to trigger the drawer to close by self-priming.

[0034] like Figure 8 As shown, the locking release mechanism 2 is provided with a fixed seat 21, an adjusting screw 22, an adjusting slide 23 and a swing hook 24. The fixed seat 21 is installed at the bottom of the drawer. The adjusting screw 22 passes through the fixed seat 21 and is threadedly connected to the adjusting slide 23. The swing hook 24 is axially connected to the adjusting slide 23. The swing hook 24 and the swing rod 51 are slidably matched and gradually separated or gradually engaged. The position of the swing hook 24 can be adjusted by adjusting the screw 22 to ensure that the swing hook 24 and the swing rod 51 are smoothly matched.

[0035] The following takes the operation of the drawer from opening to closing as an example to illustrate the working principle of the present invention:

[0036] When the drawer is in the open state, the self-priming device 1 and the locking release mechanism 2 are separated, the energy of the energy storage spring 41 is released, and the positioning rod 44 is against the self-priming groove 54 of the cam 53 through the free end of the first positioning rod 44a, overcoming the pulling force of the self-priming spring 62, so that the internal components of the self-priming device 1 are in a static state. When the drawer is gradually closed, the adjustment slide 23 of the locking release mechanism 2 gradually engages with the swing rod 51, as shown in FIG. Figure 3 shown.

[0037] As the drawer is further closed, the adjusting slide 23 continues to push the swing rod 51 and the cam 53 to rotate synchronously clockwise, and the swing rod 51 slides into the swing hook 24 of the lock release mechanism 2. The self-priming groove 54 of the cam 53 pushes the free end of the first positioning rod 44a to make the third positioning rod 44c and the first positioning pin 44d move along the positioning guide groove 44f. At the same time, the positioning rod 44 drives the sliding sleeve 43 to compress the energy storage spring 41, and the other side wall of the virtual groove 55 of the cam 53 is close to the push rod 52. Figure 4 shown.

[0038] As the drawer is further closed, the free end of the first positioning rod 44a gradually separates from the self-priming groove 54 of the cam 53, and is lifted up by the cam 53, slides into the positioning buckle 45 and abuts against it, and the energy storage spring 41 completes energy storage; the self-priming lever 61 gradually slides into the self-priming groove 54, triggering the self-priming closure of the drawer under the action of the self-priming spring 62, and the cam 53 automatically drives the push rod 52 to compress the buffer 7. At this time, the drawer is completely closed. Figure 5 shown.

[0039] When the drawer is in the closed state, when the user uses the automatic opening function of the drawer, the user only needs to press the drawer, at this time, the push rod 52 drives the sliding sleeve 43 to make the free end of the first positioning rod 44a retreat, and under the action of the positioning spring 44g, the free end of the first positioning rod 44a swings downward and disengages from the positioning buckle 45. After the user lets go, the buffer 7 and the energy storage spring 41 release energy, and drive the swing rod 51 and the cam 53 to rotate synchronously counterclockwise by pushing the push rod 52, overcoming the force of the self-priming spring 62, so that the self-priming groove 54 is separated from the self-priming lever 61, until the free end of the first positioning rod 44a slides into the self-priming groove 54 and resists it, and the swing rod 51 and the swing hook 24 tend to separate and return to the state as shown. Figure 3 shown.

[0040] When the drawer is in the closed state, when the user directly pulls out the drawer manually, since the free end of the first positioning rod 44a remains against the positioning buckle 45, the energy storage spring 41 remains in the energy storage state, and the buffer 7 releases energy, the rocker arm 51, the push rod 52, and the cam 53 rotate counterclockwise, overcoming the force of the self-priming spring 62, separating the self-priming groove 54 from the self-priming lever 61, until the rocker arm 51 and the swing hook 24 tend to separate, and the drawer opens.

[0041] The above is only a preferred embodiment of the present invention. It should be pointed out that for ordinary technicians in this technical field, several improvements and substitutions can be made without departing from the technical principles of the present invention. These improvements and substitutions should also be regarded as the scope of protection of the present invention.

Claims

1. A drawer slide self-priming device, comprising a housing, characterized in that: A swing arm assembly (5) and a self-priming assembly (6) are provided in the housing. The swing rod assembly (5) rotates along with the push and pull of the drawer, and is provided with a cam (53) and a self-priming groove (54), wherein the self-priming groove (54) is arranged on the surface of the cam (53); The self-priming assembly (6) comprises a self-priming lever (61) and a self-priming spring (62); one end of the self-priming lever (61) is connected to the self-priming spring (62) in a stretched state, and the other end is slidably matched with the cam (53) to slide into or out of the self-priming groove (54); The self-priming device is installed on the crossbeam and is located between the two drawer slide rails (3); The self-priming assembly (6) further comprises an adjusting lever (63), one end of the adjusting lever (63) extending out of the housing to form a wrench, and a self-priming spring (62) connected between an end of the adjusting lever (63) close to the wrench and the self-priming lever (61); The housing is provided with at least two adjustment steps (64) for fixing a wrench; An energy storage assembly (4) is provided in the housing, the energy storage assembly (4) being provided with an energy storage spring (41), a sleeve rod (42), a sliding sleeve (43) and a positioning rod (44); the energy storage spring (41) is clamped between the sleeve rod (42) and the sliding sleeve (43); the sliding sleeve (43) slides back and forth on the sleeve rod (42) and is locked by the positioning rod (44); The swing rod assembly (5) rotates along with the push and pull of the drawer, pushing the sliding sleeve (43) to compress the energy storage spring (41) or triggering the positioning rod (44) to release the sliding sleeve (43); The housing is provided with a positioning buckle (45); The swing arm assembly (5) is provided with a self-priming groove (54); The positioning rod (44) is linked with the sliding sleeve (43) and is separated from or engaged with the positioning buckle (45), or is separated from or engaged with the self-priming groove (54); The sleeve rod (42) of the energy storage assembly (4) abuts against an end of the adjustment lever (63) away from the wrench, and the adjustment lever (63) pushes the sleeve rod (42) to move axially.

2. The drawer slide self-priming device according to claim 1, characterized in that: A buffer (7) is also provided in the housing, and the buffer (7) is linked with the rocker assembly (5).

3. The drawer slide self-priming device according to claim 2, characterized in that: The swing rod assembly (5) is provided with a swing rod (51) and a push rod (52). The swing rod (51), the push rod (52) and the cam (53) rotate coaxially. The swing rod (51) rotates along with the push and pull of the drawer. The cam (53) triggers the compression of the energy storage spring (41), and the push rod (52) triggers the release of the energy storage spring (41) and the compression buffer (7).

4. The drawer slide self-priming device according to claim 3, characterized in that: The surface of the cam (53) is provided with a virtual position groove (55), the push rod (52) is provided with a protruding push rod shifting block (52a), the push rod shifting block (52a) extends into the virtual position groove (55), and the cam (53) drives the push rod (52) to rotate via the virtual position groove (55) and the push rod shifting block (52a).

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