Middle locking drawer slide rail

Abstract

The utility model relates to a drawer slide rail with a middle stopper. Comprising a sliding rail and a locking assembly, the sliding rail is formed by sequentially sleeving an outer fixed rail, an inner middle fixed rail and an inner fixed rail, the locking assembly comprises a supporting seat, a locking seat, a spring and a clamping seat, the supporting seat is detachably connected to the inner fixed rail, one end of the locking seat is rotatably connected to the supporting seat, and the other end of the locking seat is connected with the supporting seat through the spring; the clamping base is detachably connected to the stop base and sequentially penetrates through the supporting base, the inner fixing rail and the inner middle fixing rail downwards, and clamping teeth on the clamping base are matched with racks on the inner middle fixing rail. The locking assembly is additionally arranged on the sliding rail, the clamping base is additionally arranged, the clamping teeth on the clamping base abut against the rack, when the drawer is subjected to downward pulling force, the clamping teeth can be clamped into the rack, the drawer is prevented from being pulled outwards continuously, and the situation that children are injured by a finished product cabinet due to the fact that the opening length of the drawer is too long is avoided.

Description

Technical Field

[0001] The utility model belongs to the technical field of drawer slide rails, and in particular relates to a drawer slide rail with a central stop. Background Art

[0002] Nowadays, every household has cabinets, including custom cabinets and finished cabinets. Custom cabinets are made and fixed to fit the size of the house, so they are very stable, and the drawers installed on them are also very stable. However, finished cabinets are mass-produced and cannot be customized. As a result, when the finished cabinets are placed at home, except for the support provided by the feet at the bottom, other directions cannot provide support for the finished cabinets. Therefore, the finished cabinets are easy to topple over when hit. However, it is often only adults who can support the finished cabinets when they are hit by external forces. Adults are strong and can quickly hold them up even if the finished cabinets topple over. Correction, but if a child pulls the drawer on the finished cabinet, since the child himself is not tall, he will often hang on the drawer after opening the upper drawer. The finished cabinet can provide enough support if the drawer is only opened a small distance, but once the drawer is opened for a long distance, and the child is hanging on the drawer, an extended torque is formed. The longer the drawer is opened, the greater the torque. Coupled with the child's own weight, the finished cabinet will be subjected to a huge downward pressure. Once the supporting force of the finished cabinet is exceeded, the finished cabinet will tilt toward the child and eventually fall on the child, causing personal injury. Utility Model Content

[0003] In order to solve the above technical problems, the utility model provides a drawer slide with a center stop. A stop assembly is added to the slide, and a card seat is added. The engaging teeth on the card seat abut against the rack. When the drawer is subjected to a downward pulling force, the engaging teeth will be stuck in the rack, preventing the drawer from being pulled outward further, thereby preventing the drawer from being opened too long and causing children to be injured by the finished cabinet.

[0004] In order to achieve the above purpose, the technical solution adopted by the utility model is:

[0005] The cam is configured to move the first end of the second end of the guide rail to the left of the second end of the guide rail, and the second end of the second guide rail is configured to move the first end of the second guide rail to the right of the guide rail.

[0006] The drawer slide rail with a center stop of this structure is a common drawer slide rail, which is composed of an outer fixed rail, an inner middle fixed rail and an inner fixed rail which are sequentially fitted together, and the joints between them are connected by ball bearings. The outer fixed rail is fixedly connected to the drawer box of the finished cabinet, and the inner fixed rail is fixedly connected to the outer side wall of the drawer. Therefore, when the drawer is pulled, the inner fixed rail and the inner middle fixed rail will extend outward in sequence. In order to prevent the finished cabinet from losing its supporting force and falling over and injuring the child after the drawer is excessively pulled out by a child from bottom to top, a stop assembly is added between the inner fixed rail and the drawer, and the support seat of the stop assembly is detachably connected to the inner fixed rail to stop the drawer. The movable seat is detachably connected to the bottom of the drawer, and the stop seat is rotatably connected to one end of the support seat, and the rotatable connection between the stop seat and the support seat is set at the front plate of the drawer. Therefore, the entire drawer body is pressed on the stop seat. In order to provide upward supporting force to the drawer, the other end of the stop seat is connected to the support seat through a spring. In order to prevent the spring from falling out, a first fixed groove is set on the support seat, and a second fixed groove is set on the stop seat. The upper and lower ends of the spring are inserted into the second fixed groove and the first fixed groove to limit the position of the spring. Therefore, when subjected to the support force of the spring, the drawer body is also supported.

[0007] When a child reaches out to open a drawer from the bottom up, a downward pulling force is applied to the drawer, while an adult, because of his / her height, applies an upward pulling force to the drawer when opening the drawer. The forces applied to the drawer by children and adults when opening the drawer are different. Therefore, in order to prevent the finished cabinet from tipping over due to the drawer being opened too long by a child, the drawer needs to be stuck when the child is opening the drawer, so as to prevent the drawer from being pulled out excessively and increasing the torque. Even if a child hangs on the drawer, the finished cabinet can still provide sufficient supporting force to prevent tipping over, while the drawer opening by an adult needs to be unaffected so as to facilitate the use of the adult. Therefore, a long straight hole is provided on the inner fixed rail, and a holder is detachably connected to the stop seat. The holder is arranged at a position close to the spring, and can be between the spring and the rotatable connection between the stop seat and the support seat, or can be outside the spring, but cannot be in the same place as the spring. The holder passes downward through the long straight hole on the support seat, the inner fixed rail and the inner fixed rail in turn. A rack pointing downward is provided at the edge of the long straight hole, and the lower end of the holder The drawer is then pulled out of the drawer box and the drawer body is moved upwards by the spring, ...

[0008] Furthermore, the rack and the engaging teeth each include two groups, and the two groups of the rack and the engaging teeth are symmetrical to each other with the engaging seat as the symmetry center.

[0009] Compared with the prior art, the advantage of the utility model is that by arranging the drawer slide rail with the central stop at the bottom of the drawer, the slide rail on the side of the drawer no longer needs to be arranged, and the weight of the drawer body acts on the stop seat, and the stop seat is connected to the support seat by a spring, and the spring provides an upward supporting force. When the drawer is pulled open, due to the short stature of the child, when the child stretches out his hand to open the drawer upward, a downward pulling force will be applied to the drawer, and the drawer pulled out a short distance and pulled down will rotate with the rotatable connection between the stop seat and the support seat as the rotation center, and the end of the drawer body is lifted, so that the engaging teeth of the holder on the stop seat move up and bite into the rack, limiting the drawer from being pulled out further, ensuring that the child will not be injured when opening the drawer without supervision, because the adult opens the drawer with horizontal force or upward force, so the drawer body will continue to press down, and the engaging teeth on the holder will not be able to bite into the rack, so the adult will not be affected when opening the drawer, and the normal use of the drawer can be guaranteed. BRIEF DESCRIPTION OF THE DRAWINGS

[0010] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0011] Figure 1 It is a three-dimensional diagram of the utility model;

[0012] Figure 2 It is a schematic diagram of the expansion of the utility model;

[0013] Figure 3 For the utility model Figure 2 A local enlarged view of point A;

[0014] Figure 4 For the utility model Figure 2 A partial enlarged view of point B;

[0015] Figure 5 For the utility model Figure 2 A partial enlarged view of point C;

[0016] Figure 6 It is a top view of the utility model;

[0017] Figure 7 For the utility model Figure 6 DD cross-sectional view;

[0018] Figure 8 For the utility model Figure 7 A local enlarged view of point E;

[0019] Fig. 9 It is a horizontal three-dimensional diagram of the utility model;

[0020] Fig.10 For the utility model Fig. 9 A partial enlarged view of point F.

[0021] Among them: 1. slide rail; 11. outer fixed rail; 12. inner fixed rail; 121. rack; 122. long straight hole; 13. inner fixed rail; 2. stop assembly; 21. support seat; 211. first fixed groove; 22. stop seat; 221. second fixed groove; 23. spring; 24. clamping seat; 241. clamping tooth. DETAILED DESCRIPTION

[0022] In order to make the purpose, technical solution and advantages of the utility model clearer, the technical solution of the utility model will be described clearly and completely below. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work belong to the scope of protection of the utility model.

[0023] The specific implementation of the utility model will be described below in conjunction with the accompanying drawings:

[0024] like Figure 1-10 As shown, a drawer slide with a central stop includes a slide rail 1 and a stop assembly 2, wherein the slide rail 1 is formed by sequentially fitting an outer fixed rail 11, an inner middle fixed rail 12 and an inner fixed rail 13, wherein the stop assembly 2 includes a support seat 21, a stop seat 22, a spring 23 and a clamping seat 24, wherein the support seat 21 is detachably connected to the inner fixed rail 13, wherein one end of the stop seat 22 is rotatably connected to the support seat 21, wherein the other end of the stop seat 22 is connected to the support seat 21 through a spring 23, wherein a first fixing groove 211 is provided on the support seat 21, wherein a second fixing groove 221 is provided on the stop seat 22, and wherein the upper and lower ends of the spring 23 are respectively The clamping seat 24 is detachably connected to the stop seat 22 and passes downward through the support seat 21, the inner fixed rail 13 and the inner middle fixed rail 12 in sequence. The engaging teeth 241 on the clamping seat 24 cooperate with the rack 121 on the inner middle fixed rail 12. The inner middle fixed rail 12 is provided with a long straight hole 122. When the inner fixed rail 13 slides on the inner middle fixed rail 12, the clamping seat 24 is located in the long straight hole 122. The clamping seat 24 does not contact the long straight hole 122. The rack 121 is arranged at the edge of the long straight hole 122 and points downward, and the engaging teeth 241 points upward.

[0025] Furthermore, the rack 121 and the engaging teeth 241 each include two groups, and the two groups of the rack 121 and the engaging teeth 241 are symmetrical to each other with the clamping seat 24 as the symmetry center.

[0026] Description of the working method of this utility model:

[0027] The drawer slide with a center stop of this structure, the slide rail 1 is a common drawer slide rail, which is composed of an outer fixed rail 11, an inner middle fixed rail 12 and an inner fixed rail 13 which are sequentially fitted together, and the joints between them are connected by balls. The outer fixed rail 11 is fixedly connected to the drawer box of the finished cabinet, and the inner fixed rail 13 is fixedly connected to the outer side wall of the drawer. Therefore, when the drawer is pulled, the inner fixed rail 13 and the inner middle fixed rail 12 will extend outward in sequence. In order to prevent the finished cabinet from losing its supporting force and falling over and injuring the child after the drawer is excessively pulled out by a child from bottom to top, a stop assembly 2 is added between the inner fixed rail 13 and the drawer, and the support seat 21 of the stop assembly 2 is detachably connected to the inner fixed rail 13, and the stop seat 22 is detachably connected to the inner fixed rail 13. Connected to the bottom of the drawer, the stop seat 22 is rotatably connected to one end of the support seat 21, and the rotatable connection between the stop seat 22 and the support seat 21 is set at the front plate of the drawer, so the entire drawer body is pressed on the stop seat 22. In order to provide an upward supporting force for the drawer, the other end of the stop seat 22 is connected to the support seat 21 through a spring 23. In order to prevent the spring 23 from falling out, a first fixed groove 211 is set on the support seat 21, and a second fixed groove 221 is set on the stop seat 22. The upper and lower ends of the spring 23 are inserted into the second fixed groove 221 and the first fixed groove 211 to limit the position of the spring 23. Therefore, under the support force of the spring 23, the drawer body is also supported.

[0028] Since a child applies a downward pulling force to the drawer when opening it from the bottom up, while an adult applies an upward pulling force to the drawer because of his / her height, the drawer is subjected to different forces when opened by a child and an adult. Therefore, in order to prevent the finished cabinet from tipping over due to the drawer being opened too long by a child, the drawer needs to be opened only a short distance during the process of the child opening the drawer, so that the drawer is stuck and the torque is not increased due to excessive pulling out of the drawer. Even if a child hangs on the drawer, the finished cabinet can still provide sufficient supporting force to prevent tipping over. The drawer opening by an adult needs to be unaffected so as to facilitate the use of the adult. Therefore, a long straight hole 12 is provided on the inner fixed rail 12. 2. A card seat 24 is detachably connected to the stop seat 22. The card seat 24 is arranged at a position close to the spring 23, and can be between the rotatable connection between the spring 23 and the stop seat 22 and the support seat 21, or can be outside the spring 23, but cannot be at the same place as the spring 23. The card seat 24 passes downward through the long straight hole 122 on the support seat 21, the inner fixed rail 13 and the inner middle fixed rail 12 in sequence. A rack 121 pointing downward is arranged at the edge of the long straight hole 122, and a snap-on tooth 241 pointing upward is arranged at the lower end of the card seat 24. The snap-on tooth 241 corresponds to the rack 121. When the drawer is pulled out a short distance, the front plate of the drawer will gradually extend out of the finished cabinet. , the torque will gradually increase during the gradual extension process. When the rotatable connection between the stop seat 22 and the support seat 21 is completely extended out of the drawer box, the drawer can rotate with the rotatable connection as the rotation center. In particular, when the front plate is subjected to downward pulling force, the drawer body will be lifted up with the support force of the spring 23, thereby driving the stop seat 22 to rise, and the seat 24 on the stop seat 22 will also move upward, so that the engaging tooth 241 is inserted into the rack 121. The engaged engaging tooth 241 and the rack 121 can limit the drawer from being pulled out further. Therefore, when a child opens the drawer, it can only be opened a short distance, and the drawer will be stuck, ensuring that the child can open the drawer without anyone watching. There is no danger of being injured when opening the drawer under protection, because adults use horizontal force or upward force to open the drawer, so the drawer body will continue to press down, and the engaging teeth 241 on the holder 24 will not be able to engage with the rack 121. Therefore, when an adult opens the drawer, it will not be affected, and the normal use of the drawer can be guaranteed. The rack 121 and the engaging teeth 241 each include two groups, and the two groups of racks 121 and engaging teeth 241 are symmetrical with each other with the holder 24 as the symmetry center, which can achieve a more stable effect. At the same time, the drawer slide rail 1 with a central stop is preferably provided with two groups at the bottom of the drawer, which can have a more balanced effect, and its supporting force will be better, which is convenient for the use of the drawer.

[0029] The beneficial effect of the utility model is that by setting the drawer slide rail with the central stop at the bottom of the drawer, it is better to set two sets to have better supporting force, and the slide rail on the side of the drawer is no longer needed. The weight of the drawer body acts on the stop seat 22, and the stop seat 22 is connected to the support seat 21 through the spring 23. The spring 23 provides an upward supporting force. When the drawer is pulled open, due to the short stature of the child, when the child stretches his hand upward to open the drawer, a downward pulling force is applied to the drawer, and the drawer that is pulled out a short distance and pulled down will be pulled back with the stop seat 22. The rotatable connection with the support seat 21 is rotated as the rotation center, and the end of the drawer body is lifted, so that the engaging teeth 241 of the clamping seat 24 on the stop seat 22 move up and bite into the rack 121, limiting the drawer from being pulled out further, ensuring that children will not be injured when opening the drawer without supervision. Because adults open the drawer with lateral force or upward force, the drawer body will continue to be pressed down, and the engaging teeth 241 on the clamping seat 24 will not be able to bite into the rack 121. Therefore, when adults open the drawer, it will not be affected, and the normal use of the drawer can be guaranteed.

[0030] The above embodiments are only used to illustrate the technical solution of the utility model, rather than to limit it. Although the utility model is described in detail with reference to the above embodiments, ordinary technicians in this field should understand that they can still modify the technical solutions recorded in the above embodiments, or replace some or all of the technical features therein with equivalents. These modifications or replacements do not make the essence of the corresponding technical solutions deviate from the scope of the technical solutions of the embodiments of the utility model.

Claims

1. A drawer slide rail with a center stop, comprising a slide rail, wherein the slide rail is formed by sequentially fitting an outer fixed rail, an inner middle fixed rail and an inner fixed rail, and is characterized in that: It also includes a stop assembly, which includes a support seat, a stop seat, a spring and a clamping seat. The support seat is detachably connected to the inner fixed rail, one end of the stop seat is rotatably connected to the support seat, and the other end of the stop seat is connected to the support seat through a spring. The clamping seat is detachably connected to the stop seat and passes downward through the support seat, the inner fixed rail and the inner middle fixed rail in sequence, and the clamping teeth on the clamping seat cooperate with the rack on the inner middle fixed rail.

2. The drawer slide rail with a center stop according to claim 1, characterized in that: The support seat is provided with a first fixing groove, the stop seat is provided with a second fixing groove, and the upper and lower ends of the spring are respectively abutted in the second fixing groove and the first fixing groove.

3. The drawer slide rail with a center stop according to claim 1, characterized in that: The inner middle fixed rail is provided with a long straight hole, and when the inner fixed rail slides on the inner middle fixed rail, the clamping seat is located in the long straight hole, and the clamping seat does not contact the long straight hole.

4. The drawer slide rail with a center stop according to claim 3, characterized in that: The toothed rack is arranged at the edge of the long straight hole and points downward, and the engaging teeth point upward.

5. The drawer slide rail with a center stop according to claim 4, characterized in that: The rack and the engaging teeth each include two groups, and the two groups of the rack and the engaging teeth are symmetrical to each other with the engaging seat as the symmetry center.

Images