CN107582004B - A self-locking buffer slide rail - Google Patents

Abstract

The invention provides a self-locking buffer sliding rail, which is provided with an elastic self-locking piece and a locking slot, wherein the elastic self-locking piece is used for completely closing an upper rail on a lower rail, the locking slot is matched with the elastic self-locking piece to slide and is clamped or separated, the elastic self-locking piece comprises a reset spring and a locking clamping block, the locking clamping block is arranged at the lower part of a swinging clamping block of the buffer damper, the clamping part of a movable end of the reset spring is arranged at the front end of the swinging clamping block provided with an upward radial button force and matched with the locking slot in a buffer direction for installing the swinging clamping block of the buffer damper, so that the swinging clamping block always has an upward radial torsion, and in a sliding rail closing state, the locking positioning block is buckled on the locking slot to realize the complete closing of the sliding rail, so that the buffer damper has a buffer effect and a locking function and strong applicability, and the normal drawer type electric appliance is ensured.

Description

A self-locking buffer slide rail

Technical field

The patent of this invention relates to the field of slide rails, specifically a self-locking buffer slide rail.

Background technique

At present, traditional slide rails include an upper rail, a middle rail, and a lower rail that are embedded in sequence. The upper rail is installed on the drawer, and the lower rail is installed on the cabinet. The upper rail, middle rail, and lower rail are slidingly connected to each other to realize drawer sliding. Open or close on the cabinet.

Among them, during use, the drawer will collide too much with the cabinet, producing loud noise, affecting the use of the drawer, and even damaging the drawer and cabinet.

For this reason, buffer dampers are generally installed on existing slide rails. A special drawer-type dishwasher includes an automatic dishwasher body and a door body. The door body is equipped with a lock for locking on the automatic dishwasher body, thereby ensuring good positioning and sealing of the door body and the automatic dishwasher body. The slide rail with buffering effect is installed on the body of the automatic dishwasher so that the placement rack in the dishwasher can slide in or out, effectively avoiding excessive collision and damage to the placement rack when the placement rack is reset. Fragile items.

However, in practical applications, the above-mentioned slide rail equipped with a buffer damper has the following shortcomings:

1) Reliable closing and locking of the door body and the machine body cannot be ensured by relying solely on the existing self-pushing door force or self-locking drawer-type furniture or appliances, and the safety is not high;

2) The buffer damper applied to the slide rail only has a buffering effect and is used in a single way;

3) The buffer damper applied on the slide rail will reduce its elasticity of return as it is used for a long time. When the placement frame returns to its original position, the placement frame will slide outward due to the heavy load, making it difficult for the door to open. Completely shut down, causing the dishwasher to not work properly and even posing a safety hazard.

Invention patent content

The purpose of the patent of this invention is to overcome the shortcomings of the existing technology and provide a self-locking buffer slide rail with a simple structure, which ensures the buffering effect of the slide rail while adding a self-locking function so that the door body can be completely closed, double protection, and improved use Safety, ensuring the normal operation of drawer-type appliances.

The invention patent purpose of the invention patent is achieved in this way: a self-locking buffer slide rail, including an upper rail, a middle rail, and a lower rail that are sequentially embedded and slidably connected. The upper rail is equipped with a pulling block, and the lower rail is equipped with a buffer. Damper, the upper rail is equipped with a pulling block. The pulling block matches or separates with the swing block of the buffer damper as the upper rail slides. The buffer damper is equipped with an upper rail that is completely closed on the lower rail. The elastic self-locking piece and the adapting elastic self-locking piece slide and match the locking slots of the snap-in or separation. The elastic self-locking piece includes a return spring and a locking block, and the locking block is arranged on the buffer damping The lower part of the swing block of the device, the fixed end of the return spring is installed on the fixed position of the buffer damper, the movable end of the return spring is buckled on the locking block, and the snap joint of the movable end of the return spring is set on the supply The swing block of the buffer damper has an upward radial button force and a buffer direction front end for installation matching the locking slot.

Optimized according to the above, the buffer damper includes a mounting shell, a buffer damping cylinder, and a swing block. The cylinder body of the buffer damping cylinder is installed on the mounting shell. The push rod of the buffer damping cylinder is connected to the swing block. The installation shell is provided with a chute for the swing block to slide along the buffering direction. The front and rear ends of the chute are respectively provided with buckle slots and locking slots. The front end of the swing block is provided with a locking slot. The buckle positioning block is used to buckle or separate the pull block while the buckle slot is buckled or separated. The rear end of the swing clamp block is provided with a buckle positioning block that snaps or separates with the locking slot while allowing the upper rail to be fully buckled to the lower rail. rail or a locking block for sliding off the lower rail.

According to the above optimization, the buckle slot is set at the lower part of the front end of the chute, the locking slot is set at the upper part of the rear end of the chute, and the locking positioning block and the buckle positioning block are arranged horizontally and in a straight line. On the swing block, the joint between the movable end of the return spring and the locking block is located on the right side of the locking positioning block.

Optimized according to the above, the locking block includes a locking block, a locking arc surface, and a connecting arc surface. The center of the locking block is on the right side of the rotation axis of the swing block, and the connecting arc surface and The locking arc surfaces are respectively arranged on the left and right sides of the locking block. The movable end of the return spring is clamped on the locking block and contacts with the connecting arc surface and the locking arc surface respectively. .

According to the above optimization, the movable end of the return spring is provided with a slot that matches the locking block, and the left and right sides of the slot are respectively provided with surfaces for contact with the connecting arc surface and the locking arc surface. of the inclined surface.

According to the above optimization, the top of the swing clamping block is provided with a guide inclined surface to facilitate the buckling of the pulling block.

Optimized according to the above, the installation shell is provided with a guide horizontal surface for allowing the pulling block to slide linearly and horizontally and to engage or separate from the swing block.

According to the above optimization, the installation shell is provided with a guide surface slidably connected to the bottom surface of the locking block.

Optimized according to the above, the installation shell is provided with a front buckle position and a rear limit lock position. The rear limit lock position is clamped on the outer port of the lower rail from outside to inward. The outer side of the lower rail is provided with a front buckle connection. Front buckle block that matches the buckle.

According to the above optimization, the inner surface of the installation shell is provided with an inclined buckle block, and the lower rail is provided with a snap hole that matches the inclined buckle block.

The advantages of the patent of this invention are:

1) Through the structural cooperation between the elastic self-locking part installed in the buffer damper and the locking slot, when the movable end of the return spring of the elastic self-locking part is engaged with the locking block, the movable end surface of the return spring is in contact with The front end of the buffer direction, so that the swing block always has upward radial torque. When the slide rail is closed, the locking positioning block is buckled in the locking slot to realize the complete closure of the slide rail and improve the connection stability. The buffer damper has a buffering effect and a locking function, has strong applicability, and ensures the normal operation of drawer-type appliances;

2) Since the locking positioning block is fastened to the locking slot, it is necessary to increase the door opening force during the opening of the door to disengage the locking positioning block from the locking slot, thereby realizing the door locking function of the buffer damper and double protection. Improve safety of use;

3) The bottom surface of the locking block is slidingly connected to the guide surface in the installation shell to reduce friction, enhance operational stability, avoid shaking, and ensure the buffering effect of the buffer damper;

4) The structural cooperation between the guide horizontal plane and the guide inclined plane enables the pull block to be accurately and stably connected to the swing block, preventing the swing block from being separated from the pull block, ensuring the effectiveness of the buffer damper and ensuring the drawer type Normal use of electrical appliances;

5) The front buckle joint and the rear limit buckle are used to make the buffer damper snap on the outside of the lower rail. It is easy to install, easy to maintain and replace, and ensures the buffering effect. It can also be used according to the actual application whether to use the buffer damper. It is suitable Strong sex.

Description of drawings

Figure 1 is a perspective view of a preferred embodiment of the patent of the present invention.

Figure 2 is a schematic structural diagram of a buffer damper according to a preferred embodiment of the present invention.

Figure 3 is a schematic structural diagram of the buffer damper from another angle according to the preferred embodiment of the patent of the present invention.

Figure 4 is a partial enlarged view of the buffer damper according to the preferred embodiment of the patent of the present invention.

Figure 5 is a cross-sectional view of a buffer damper according to a preferred embodiment of the present invention.

Figure 6 is an exploded view of the buffer damper according to the preferred embodiment of the present invention.

Figure 7 is an enlarged view of a partial relationship between the installation shell and the swing clamp block in the preferred embodiment of the patent of the present invention.

Detailed ways

The patent of the present invention will be further described below in conjunction with the accompanying drawings.

As shown in Figures 1 to 7, the patented self-locking buffer slide rail of the present invention includes an upper rail 1, a middle rail 2, and a lower rail 3 that are embedded and slidably connected in sequence. The upper rail 1 is equipped with a pulling block 4, the lower rail 3 is installed with a buffer damper, and the upper rail 1 is installed with a pulling block 4. The pulling block 4 slides along with the upper rail 1 and the swing block of the buffer damper. 5 matching snaps or separates. Among them, the buffer damper is provided with an elastic self-locking part for the upper rail 1 to be completely closed on the lower rail 3 and a locking slot 81 for adapting the sliding of the elastic self-locking part and matching snapping or separation. The elastic self-locking part includes a return spring 6 and a locking block 7. The locking block 7 is arranged at the lower part of the swing block 5 of the buffer damper. The fixed end of the return spring 6 is installed on the fixed position of the buffer damper, the movable end of the return spring 6 is buckled on the locking block 7, and the snap joint of the movable end of the return spring 6 is provided for buffer damping. The swing block 5 of the device has an upward radial button force and is matched with the locking slot 81 for installation in the buffer direction front end.

Since the movable end of the return spring 6 is engaged with the locking block 7, the engaging point of the movable end of the return spring 6 is set at the front end in the buffering direction, prompting the swing block 5 to increase the upward radial torque. When the swing block 5 When fastened to the locking slot 81, it effectively prevents the return spring 6 from rebounding and pushing the dishwasher to slide outward when the recovery elasticity decreases, thereby realizing the complete closure of the slide rail, improving the connection stability, ensuring the buffering effect, and ensuring Drawer appliances operate normally.

Referring to FIGS. 2 to 7 , the buffer damper includes a mounting shell 84 , a buffer damping cylinder 9 , and a swing block 5 . The cylinder body of the buffer and damping cylinder 9 is installed on the mounting shell 84 , and the push rod of the buffer and damping cylinder 9 is connected to the swing block 5 . The installation shell 84 is provided with a chute 82 for the swing block 5 to slide along the buffering direction. The front and rear ends of the chute 82 are respectively provided with buckle slots 83 and locking slots 81. The front end of the swing block 5 is provided with a buckle slot 83 that engages or separates with the locking slot 83 while allowing the puller to be pulled. The buckle positioning block 51 is used to separate or engage the block 4. The rear end of the swing clamp block 5 is provided with a locking slot 81 to engage or separate the upper rail 1 from the lower rail 3 or slide away from the lower rail. 3. Use the locking positioning block 52.

That is, when the slide rail is closed, the swing block 5 increases the upward radial torque to lock the positioning block 52 in the locking slot 81 to realize the complete closing of the slide rail and improve the connection stability to achieve the buffer damper. The buffering effect and locking function have strong applicability and ensure the normal operation of drawer-type appliances.

Moreover, the buckle slot 83 is provided at the lower part of the front end of the slide groove 82 , and the locking slot 81 is provided at the upper part of the rear end of the slide groove 82 . The locking positioning block 52 and the buckle positioning block 51 are arranged horizontally and linearly on the swing block 5, and the joint between the movable end of the return spring 6 and the locking block 7 is arranged on the locking positioning block 5. Right side of block 52.

In this way, when the slide rail is closed, the swing block 5 always has upward radial torque. When the door is opened, the door opening force needs to be increased to disengage the locking positioning block 52 from the locking groove 81 to achieve buffering and damping. The door lock function of the device provides double protection and improves the safety of use.

Referring to FIGS. 1 to 7 , the locking block 7 includes a locking position 71 , a locking arc surface 72 , and a connecting arc surface 73 . The center of the locking position 71 is located on the right side of the rotating shaft 10 of the swing block 5 . The connecting arc surface 73 and the locking arc surface 72 are respectively provided on the left and right sides of the locking position 71 . The movable end of the return spring 6 is engaged with the locking position 71 and in contact with the connecting arc surface 73 and the locking arc surface 72 respectively.

Among them, the movable end of the return spring 6 is provided with a slot 61 that matches the locking position 71. The left and right sides of the slot 61 are respectively provided with a connecting arc surface 73 and a locking arc surface 72. Inclined surface for surface contact.

When the slide rail is closed, the inclined surface of the slot 61 is in contact with the connecting arc surface 73 and the locking arc surface 72 of the locking block 7 respectively, which can expand the contact area and promote the right side of the swinging block 5 The side is subject to radial torsion with the rotating shaft 10 as the pivot point, ensuring that the swing block 5 is firmly connected to the pulling block 4, and at the same time avoiding the situation that the dishwasher is difficult to completely close when the elastic force of the return spring 6 is reduced, thereby improving The connection is stable, ensuring the buffering effect and ensuring the normal operation of drawer-type appliances.

Referring to FIGS. 2 to 7 , the installation shell 8 is provided with a guide surface 85 that is slidably connected to the bottom surface of the locking block 7 . During the opening and closing of the dishwasher, the bottom surface of the locking block 7 is slidingly connected to the guide surface 85 in the installation shell 8 to reduce friction, enhance operational stability, avoid shaking, and ensure the buffering effect of the buffer damper.

Referring to FIGS. 2 to 7 , the installation shell 8 is provided with a guide horizontal surface 84 for allowing the pulling block 4 to slide linearly and horizontally and engage or separate from the swing block 5 . Among them, the top of the swing block 5 is provided with a guide inclined surface 53 to facilitate the buckling of the pulling block 4 . In this way, the structural cooperation between the guide horizontal plane 84 and the guide inclined plane 53 can enable the pull block 4 to be accurately and stably connected to the swing block 5, prevent the swing block 5 from being separated from the pull block 4, and ensure the buffer damper. The use effect ensures the normal use of drawer-type appliances.

Referring to FIGS. 1 to 7 , the installation shell 8 is provided with a front buckling position 11 and a rear limiting position 12 . The rear limiting clamping position 12 is clamped on the outer port of the lower rail 3 from outside to inward. The outer side of the lower rail 3 is provided with a front buckle block 13 that matches the front buckling connection position 11 and buckles. Moreover, the inner surface of the installation shell 8 is provided with an inclined buckle block 14 , and the lower rail 3 is provided with a locking hole that matches the inclined buckle block 14 . In this way, the maintenance and replacement of the buffer damper can be carried out according to the actual use of the slide rail, so that the buffer damper can be installed flexibly and ensure the normal use of the slide rail.

The above-mentioned specific embodiments are only specific implementations with better effects of the patent of the present invention. All structures that are the same or equivalent to the self-locking buffer slide rail of the patent of the present invention are within the scope of protection of the patent of the present invention.

Claims (7)

1. A self-locking buffer slide rail, including an upper rail (1), a middle rail (2), and a lower rail (3) that are embedded and slidably connected in sequence. The upper rail (1) is equipped with a pulling block (4). The lower rail (3) is equipped with a buffer damper, and the upper rail (1) is equipped with a pulling block (4). The pulling block (4) slides along with the upper rail (1) and the swing block (5) of the buffer damper. ) matching snapping or separation, characterized in that: the buffer damper is equipped with an elastic self-locking part for the upper rail (1) to be completely closed on the lower rail (3) and an adapting elastic self-locking part to slide and snap together Or a separate locking slot (81). The elastic self-locking part includes a return spring (6) and a locking block (7). The locking block (7) is provided on the swing block (5) of the buffer damper. ), the fixed end of the return spring (6) is installed on the fixed position of the buffer damper, the movable end of the return spring (6) is buckled on the locking block (7), and the return spring (6) The clamping point of the movable end is set at the front end of the swing block (5) of the buffer damper in the buffering direction, which has an upward radial button force and is matched with the locking slot (81) for installation; The buffer damper includes a mounting shell (8), a buffer damping cylinder (9), and a swing block (5). The cylinder body of the buffer damping cylinder (9) is installed on the mounting shell (8). The buffer damping cylinder (9) The push rod of 9) is connected to the swing block (5). The installation shell (8) is provided with a chute (82) for the swing block (5) to slide along the buffering direction. The chute (82) The front end and the rear end are respectively provided with buckle slots (83) and locking slots (81). The front end of the swing block (5) is provided with a buckle slot (83) that allows the locking slot (83) to be engaged or separated at the same time. The buckle positioning block (51) is used to separate or engage the pulling block (4). The rear end of the swing clamping block (5) is provided with a locking slot (81) while engaging or separating the upper rail (1). The locking positioning block (52) is used to fully engage with the lower rail (3) or slide away from the lower rail (3); The installation shell (8) is provided with a front buckling position (11) and a rear limiting position (12). The rear limiting position (12) is clamped on the outer port of the lower rail (3) from outside to inward. The outer side of the lower rail (3) is provided with a front buckle block (13) that matches the front buckle joint (11); The buckle slot (83) is set at the lower part of the front end of the chute (82), the locking slot (81) is set at the upper part of the rear end of the chute (82), the locking positioning block (52) and the buckle The positioning block (51) is arranged horizontally and linearly on the swing block (5), and the joint between the movable end of the return spring (6) and the locking block (7) is arranged on the locking positioning block (5). 52) on the right side. 2. The self-locking buffer slide rail according to claim 1, characterized in that: the locking block (7) includes a locking position (71), a locking arc surface (72), and a connecting arc surface. (73), the center of the locking position (71) is on the right side of the rotating shaft (10) of the swing block (5), and the connecting arc surface (73) and the locking arc surface (72) are respectively arranged on the lock. On the left and right sides of the locking position (71), the movable end of the return spring (6) is clamped on the locking position (71) and connected to the connecting arc surface (73) and the locking arc surface respectively. (72) Matching surface contact. 3. The self-locking buffer slide rail according to claim 2, characterized in that: the movable end of the return spring (6) is provided with a slot (61) that matches the locking position (71). The left and right sides of the groove (61) are respectively provided with inclined surfaces for contact with the connecting arc surface (73) and the locking arc surface (72). 4. The self-locking buffer slide rail according to claim 1, characterized in that: the top of the swing block (5) is provided with a guide inclined surface (53) to facilitate the buckling of the pulling block (4). 5. The self-locking buffer slide rail according to claim 1, characterized in that the installation shell (8) is configured to allow the pulling block (4) to slide linearly and horizontally and to be buckled with the swing block (5) or Guide level for separation (84). 6. The self-locking buffer slide rail according to claim 1, characterized in that: the installation shell (8) is provided with a guide surface (85) slidably connected to the bottom surface of the locking block (7). 7. The self-locking buffer slide rail according to claim 1, characterized in that: the inner surface of the installation shell (8) is provided with an inclined buckle block (14), and the lower rail (3) is provided with an inclined buckle block. (14) Snap-in holes for matching buckles.