Hidden fast-assembly drawer track system

Abstract

A hidden fast-assembly drawer track system comprises various cabinets and drawers, first front rollers and track grooves are arranged on left and right vertical plates of the cabinets, and first rear rollers or third rear rollers are arranged at the rear upper ends of the two sides of the corresponding drawers when first track grooves or third track grooves are formed in the left and right vertical plates of the cabinets; when second track grooves or fourth track grooves are formed in the left and right vertical plates of the cabinet, second rear rollers or fourth rear rollers are arranged at the rear upper ends of the two sides of the corresponding drawer, the first front rollers are in rolling fit with the bottom surfaces of the two sides of the drawer, and the second rear rollers or the fourth rear rollers are in rolling fit with the second track grooves or the fourth track grooves in the left and right vertical plates of the cabinet; the first front roller is a combined cylinder, the front part is a self-tapping screw, the rear part is provided with a roller, and the rear end is provided with a locking and screwing groove. The drawer can be quickly positioned and mounted, and the rail is hidden in the vertical plate of the cabinet, so that the space occupied by the drawer rail is saved, the drawer rail cannot be seen after the drawer is drawn out, and the drawer rail is neat, attractive and low in use cost.

Description

Technical Field

[0001] The invention relates to the technical field of furniture, and in particular to a hidden quick-install drawer track system. Background Art

[0002] At present, the drawer rails used in various cabinets are mostly two-section rails, three-section rails and ordinary sound-absorbing rails. The main problems during assembly and use are: 1. The installation and positioning are troublesome and time-consuming; 2. Rail positions must be left on the left and right sides of the drawer, which occupies and reduces the use space of the drawer; 3. When the drawer is pulled out, the drawer rails leak out, affecting the appearance; 4. The production cost is high and the price is expensive, which leads to increased use costs. Summary of the invention

[0003] The technical problem to be solved by the present invention is to overcome the deficiencies of the prior art and provide a hidden quick-install drawer rail system which is neat and beautiful and can save space occupied by the drawer rail.

[0004] The technical solution adopted by the present invention to solve its technical problems is a hidden quick-install drawer rail system, including various cabinets and drawers, the left and right vertical plates of the cabinet are provided with a first front roller and a rail groove, and the corresponding drawers are provided with rear rollers at the upper rear ends on both sides, the first front roller is rollingly matched with the bottom surfaces on both sides of the drawer, and the rear roller is rollingly matched with the rail grooves on the left and right vertical plates of the cabinet; the first front roller is a combined cylinder, the front part of which is a self-tapping screw, the rear part is provided with a roller, and the rear end head is provided with a locking groove, and the middle part of the first front roller is provided with a positioning pad with a slightly larger diameter at the connection between the front and rear parts; the first front roller is installed at the front end part below the rail groove of the left and right vertical plates of the cabinet, and can be used in conjunction with the rear roller.

[0005] A hidden quick-install drawer track system includes various cabinets and drawers, wherein left and right vertical plates of the cabinet are provided with second front rollers and track grooves, and rear rollers are provided at the upper rear ends of the corresponding drawers on both sides, the second front rollers are rollingly matched with the bottom surfaces on both sides of the drawers, and the rear rollers are rollingly matched with the track grooves on the left and right vertical plates of the cabinet, the second front rollers are combined cylinders, the front part of which is an embedded body, and the outer side of the embedded body is provided with one-way teeth, the rear part of the second front roller is provided with a roller, and a positioning pad with a slightly larger diameter is provided at the junction of the front and rear parts of the second front roller; the second front roller is installed at the front end part below the track grooves of the left and right vertical plates of the cabinet, and can be used in conjunction with the rear rollers.

[0006] Furthermore, the rear roller is divided into a first rear roller, a second rear roller, a third rear roller, and a fourth rear roller, and the track groove is divided into a first track groove, a second track groove, a third track groove, and a fourth track groove; when the first track groove or the third track groove is provided on the left and right vertical plates of the cabinet, the corresponding drawers are provided with the first rear roller or the third rear roller on both sides of the upper rear ends; when the second track groove or the fourth track groove is provided on the left and right vertical plates of the cabinet, the corresponding drawers are provided with the second rear roller or the fourth rear roller on both sides of the upper rear ends.

[0007] Further, the first rear roller includes an embedded sleeve, a movable roller and a spring, the embedded sleeve is a tubular column, the outer surface of which is provided with a protruding one-way tooth, and the port is provided with a protruding positioning edge, the upper part of the inner cavity of the embedded sleeve is provided with a roller telescopic cavity, the lower part of the inner cavity is provided with a spring cavity, and the middle part of the inner cavity of the embedded sleeve is provided with an inwardly protruding card channel, the main body of the movable roller is a cylindrical piston body, one end of which is provided with a roller equal to or slightly smaller than its diameter, and the other end is provided with a connecting rod smaller than its diameter, the roller The end of the connecting rod is provided with a curved top, the end of the connecting rod is provided with a protruding clamping edge, the movable roller is clamped in the embedded sleeve, and the spring is installed in the spring cavity of the embedded sleeve. The spring pushes the clamping edge of the movable roller, so that the curved top of the movable roller and the roller protrude from the positioning edge of the embedded sleeve. Applying force on the curved top to compress the spring can make the roller and the curved top completely embedded in the embedded sleeve, and pop out when the pressure is released. The first rear roller is installed at the upper end of the drawer rear baffle, and can be matched with one of the first track groove / the third track groove.

[0008] Further, the second rear roller includes a roller pin and a locking sleeve, the front end of the roller pin is provided with a roller, the rear part of the roller pin is provided with a locking wire and a buckle, the rear end is provided with a rib larger than its diameter, and the end of the rib is provided with a locking groove; the locking sleeve is a round tube, one end of which is provided with a rib larger than its diameter, and a locking wire and a buckle are provided in the tube cavity at the other end, the inner cavity diameter of the locking sleeve is equal to or slightly larger than the diameter of the cylindrical body of the roller pin, and it and the roller pin pass through the through-hole at the upper rear of the drawer side panel, and the lock is installed at the upper rear of the drawer side panel, which can be matched with one of the second track groove and the fourth track groove; the difference between the fourth rear roller and the second rear roller is that no locking sleeve is provided, the locking wire and the buckle of the roller pin are set as self-tapping screws, and the roller pin is directly locked in the through-holes at the upper rear of the left and right side panels of the drawer through the self-tapping screws, and its roller and the arc top extend out of the through-holes.

[0009] Furthermore, the third rear roller includes an embedded sleeve, a movable roller and a spring. The embedded sleeve is a tubular cylinder with a protruding positioning edge at its port and expansion teeth on its outer side. Its inner cavity is a movable roller positioning and telescopic cavity. The main body of the movable roller is a cylinder with a roller directly equal to or slightly smaller than it at one end and a protruding clamping edge at the other end. The middle section is a positioning plug body. The end of the roller is provided with an arc top. The diameter of the clamping edge is larger than the inner diameter of the embedded body and slightly smaller than the outer diameter of the embedded sleeve. The spring is a coil spring. The first rear roller is installed in the mounting holes at the upper parts of the two ends of the drawer rear baffle. The mounting holes are round holes. The upper part of the round hole is the embedded sleeve clamping position, and the lower part is the spring cavity.

[0010] Further, the first track groove is arranged on the upper rear part of the first front roller or the second front roller on the left and right vertical plates of the cabinet; the first track groove includes a sleeve rail and a plate groove, the sleeve rail is an elliptical groove body, the elliptical groove body is a roller slideway, the upper end of which is provided with a protruding decorative edge, and the bottom of which is provided with a clamping tooth, the upper rear part of the convex groove body is provided with a gradually inclined exit slope, the lower rear end is provided with a gradually downward landing slope, the rear end is provided with a buffer convex pad, the front end of the landing slope is provided with a landing card, the plate groove is a T-shaped groove, the front and rear ends are circular holes, the bottom of the middle section is equal to the diameter of the circular hole, the width of the upper groove is less than the diameter of the circular hole, and the upper rear part of the plate groove is provided with a protruding groove, The plate groove matches the outer shape of the sleeve rail, and the sleeve rail is clamped in the plate groove through its clamping teeth, and its decorative edge covers the plate groove so that the plate groove is not exposed; the first track groove cooperates with the first rear roller.

[0011] Furthermore, the second track groove is arranged on the upper rear part of the first front roller or the second front roller on the left and right vertical plates of the cabinet; the second track groove includes a sleeve rail and a plate groove, the sleeve rail is an elliptical groove body, the groove body is a roller slide, the upper end of the sleeve rail is provided with a protruding decorative edge, the bottom of the sleeve rail is provided with a clamping tooth, the rear lower end of the groove body is provided with a gradually downward landing slope, and the rear end is provided with a buffer convex pad; the front end of the landing slope is provided with a landing card, the plate groove is a T-shaped groove, the front and rear ends of the groove are circular holes, the bottom of the middle section is equal to the diameter of the circular hole, the width of the upper groove is smaller than the diameter of the circular hole, the plate groove matches the outer shape of the sleeve rail, the sleeve rail is clamped in the plate groove by its clamping teeth, and its decorative edge covers the plate groove so that the plate groove is not exposed; the second track groove cooperates with the second rear roller.

[0012] Furthermore, the third track groove is arranged on the upper rear part of the first front roller or the second front roller on the left and right vertical plates of the cabinet; the third track groove is an elliptical track groove, and the track groove is a roller slide, and a gradual exit port is provided at the upper rear part thereof, and the exit port is a semi-elliptical groove, which is intersected and connected with the upper rear part of the track groove, and a landing groove with a slightly larger diameter is provided at the lower rear end of the track groove, and the landing groove is intersected and connected with the rear end of the track groove, and the third track groove cooperates with the first rear roller.

[0013] Furthermore, the fourth track groove is arranged on the upper rear part of the first front roller or the second front roller on the left and right vertical plates of the cabinet; the fourth track groove is an elliptical track groove, and the track groove is a roller slide, and a landing groove with a slightly larger diameter is provided at its rear lower end, and the landing groove intersects and is connected with the rear end of the track groove, and the fourth track groove cooperates with the second rear roller.

[0014] The beneficial effects of the present invention compared with the prior art are as follows: the present invention can realize rapid positioning and installation of drawers, saving time and effort, and the rails are hidden in the vertical plates of the cabinet, which not only saves the space occupied by the drawer rails, but also makes the drawer rails invisible after the drawer is drawn out, which is neat and beautiful and has a low cost of use. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 Schematic diagram of the structure of the drawer cabinet in Examples 1-7 of the present invention.

[0016] Figure 2 Schematic diagram of the structure of the first front roller and the second front roller in Embodiment 1-7 of the present invention.

[0017] Figure 3 The structure of the first rear roller and the second rear roller in Embodiment 1-4 of the present invention is Figure 5 It is a schematic diagram of the structure of the third track groove in Example 3 of the present invention; schematic diagram of the structure.

[0018] Figure 4 This is a schematic diagram of the structure of the first track groove in Example 1 of the present invention.

[0019] Figure 5 This is a schematic diagram of the structure of the third track groove in Example 3 of the present invention.

[0020] Figure 6 It is a schematic diagram of the structure of the second track groove and the fourth track groove in Example 2 or 4 of the present invention.

[0021] Figure 7 It is a structural schematic diagram of the front roller, the rear roller and the track groove used in combination in Examples 1-4 of the present invention.

[0022] Figure 8 It is a schematic diagram of the installation and disassembly of the drawer and the cooperation between the first / second / third / fourth track groove and the first rear roller / second rear roller in Examples 1-6 of the present invention.

[0023] Fig. 9 Schematic diagram of the structure of the third rear roller and the fourth rear roller in Examples 5 and 6 of the present invention.

[0024] Fig.10 This is a schematic diagram of the disassembly of the pad block structure and its use in Example 7 of the present invention.

[0025] Reference numerals: 1 The first front roller, 1-1 self-tapping screw, 1-2 positioning pad, 1-3 roller, 1-4 locking groove, 2, the second front roller, 2-1 embedded body, 2-2 one-way teeth, 2-3 positioning pad, 2-4 roller, 3 The first rear roller, 3-1 movable roller, 3-2 piston body, 3-3 roller, 3-4 arc top, 3-5 connecting rod, 3-6 clamp edge, 3-7 spring, 3-8 embedded sleeve, 3-9 positioning edge, 3-10 one-way teeth, 3 -11 roller telescopic cavity, 3-12 spring cavity, 3-13 card track, 4 second rear roller, 4-1 roller pin, 4-2 cylinder, 4-3 roller, 4-4 arc top, 4-5 rib, 4-6 locking groove, 4-7 locking wire, buckle, 4-8 pair of locking sleeves, 4-9 rib, 4-10 pair of locking wire, buckle, 4-11 tube cavity, 5 first track groove, 5-1 set rail, 5-2 decorative edge, 5-3 card tooth, 5-4 exit slope, 5-5 drop Position cavity, 5-6 buffer convex pad, 5-7 position card, 5-8 roller slide, 5-9 plate groove, 6 third track groove, 6-1 sleeve rail, 6-2 roller slide, 6-3 trim, 6-4 card-mounted teeth, 6-5 position cavity, 6-6 buffer convex pad, 6-7 position card, 6-8 plate groove, 7 second track groove, 7-1 roller slide, 7-2 exit, 7-3 position slot, 8 fourth track groove, 8-1 roller slide, 8-2 position slot, 9. The third rear roller, 9-1 embedded in the sleeve, 9-2 positioning edge, 9-3 expansion tooth, 9-4 movable roller positioning telescopic cavity, 9-5 embedded in the bottom end face of the sleeve, 9-6 roller pin, 9-7 positioning piston body, 9-8 roller, 9-9 arc top, 9-10 clamping edge, 10 fourth rear roller, 10-1 self-tapping thread, 11 third rear roller mounting hole, 11-1 embedded in the sleeve clamping position, 11-2 spring cavity, 12 disassembly pad, 12-1 exit slope. DETAILED DESCRIPTION

[0026] In order to make the above-mentioned purposes, features and advantages of the present application more obvious and easy to understand, the specific implementation methods of the present application are described in detail below in conjunction with the accompanying drawings. In the following description, many specific details are set forth to facilitate a full understanding of the present application. However, the present application can be implemented in many other ways different from those described herein, and those skilled in the art can make similar improvements without violating the connotation of the present application, so the present application is not limited by the specific embodiments disclosed below.

[0027] In the description of the present application, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present application.

[0028] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. In the description of this application, the meaning of "plurality" is at least two, such as two, three, etc., unless otherwise clearly and specifically defined. Example 1

[0029] Reference Figure 1-4 ,7,8, This embodiment includes various cabinets and drawers, the left and right vertical plates of the cabinet are provided with a first front roller 1 and a first track groove 5, and the corresponding drawers are provided with a first rear roller 3 at the upper rear ends on both sides, the first front roller 1 rolls with the bottom surfaces on both sides of the drawer, and the first rear roller 3 rolls with the first track groove 5 on the left and right vertical plates of the cabinet; the first front roller 1 is a combined cylinder, the front part of which is a self-tapping screw 1-1, the rear part is provided with a roller 1-3, the rear end head is provided with a locking groove 1-4, and the middle part of the first front roller 1 is provided with a positioning pad 1-2 with a slightly larger diameter at the connection between the front and rear parts; the first front roller 1 is installed at the front end below the first track groove 5 of the left and right vertical plates of the cabinet, and is used in conjunction with the first rear roller 3.

[0030] The first rear roller 3 includes an embedded sleeve 3-8, a movable roller 3-1 and a spring 3-7. The embedded sleeve 3-8 is a tubular column with a protruding one-way tooth 3-10 on the outside and a protruding positioning edge 3-9 at its end. The upper part of the inner cavity of the embedded sleeve 3-8 is provided with a roller telescopic cavity 3-11, and the lower part of the inner cavity is provided with a spring cavity 3-12. The middle part of the inner cavity of the embedded sleeve 3-8 is provided with an inwardly protruding card path 3-13. The main body of the movable roller 3-1 is a cylindrical piston body, one end of which is provided with a roller 3-3 with the same or slightly smaller diameter as the movable roller 3-1, and the other end is provided with a connecting rod 3-5 with a smaller diameter than the movable roller 3-1. The end is provided with a curved top 3-4, the end of the connecting rod 3-5 is provided with a protruding clamping edge 3-6, the movable roller 3-1 is clamped in the embedded sleeve 3-8, and the spring 3-7 is installed in the spring cavity 3-12 of the embedded sleeve 3-8, and the clamping edge 3-6 of the movable roller is ejected, so that the curved top 3-4 of the movable roller 3-1 and the roller 3-3 protrude from the positioning edge 3-9 of the embedded sleeve 3-8, and force is applied to the curved top 3-4 to compress the spring 3-7, so that the roller 3-3 and the curved top 3-4 can be completely embedded in the embedded sleeve 3-8, and pop out when the pressure is released. The first rear roller 3 is installed at the upper end of the drawer rear baffle and is matched with the first track groove 5.

[0031] The first track groove 5 is arranged on the upper rear part of the first front roller 1 on the left and right vertical plates of the cabinet; the first track groove 5 includes a sleeve rail 5-1 and a plate groove 5-9, the sleeve rail 5-1 is an elliptical groove body, the elliptical groove body is a roller slide 5-8, the upper end of which is provided with a protruding decorative edge 5-2, and the outer side thereof is provided with a gradual clamping wheel 5-3, the upper rear part of the convex groove body is provided with a gradual upward convex exit slope 5-4, the lower rear end is provided with a gradual downward landing slope 5-5, and the rear end is provided with a buffer convex pad 5-6, the plate groove 5-9 is an elliptical groove, the upper rear part is provided with an upper convex groove intersecting and communicating with it, and the lower rear end is provided with a lower convex groove intersecting and communicating with it, the plate groove 5-9 is matched with the outer shape of the sleeve rail 5-1, the sleeve rail 5-1 is clamped in the plate groove 5-9 through its expansion teeth, and its decorative edge 5-2 covers the plate groove 5-9 so that the plate groove 5-9 is not exposed; the first track groove 5 cooperates with the first rear roller 3.

[0032] Description of the working process of this embodiment (when the first track groove 5 cooperates with the first rear roller 3): The mounting holes for the first front roller 1 are reserved at the front ends of the left and right vertical boards of the cabinet, and the plate grooves 5-9 are pre-milled on the upper back thereof. The mounting holes for the first rear roller 3 are opened on the upper parts of both ends of the rear baffle of the drawer. The sleeve rail 5-1 is inserted into the plate grooves 5-9, and its mounting teeth 5-3 are locked at the bottom of the plate grooves 5-9 to prevent it from being loose. The decorative edge 5-2 covers the plate grooves 5-9 to prevent it from being exposed. Start the installation: the self-tapping screws 1-1 of the first front roller 1 are locked into the mounting holes with the locking grooves 1-4, and the positioning pads 1-2 of the first front roller 1 are locked to the plate surface, and the positioning pads 1-2, the rollers 1-3, and the locking grooves 1-4 protrude from the plate surface. After installing the first front roller 1 and the first rear roller 3, tilt the drawer sideways and place it above the sleeve rail 5 of the cabinet. Apply force downward in the horizontal direction from the inclined end. The curved top 3-4 of the first rear roller 3 is compressed and retracted, so that the roller 3-3 and the curved top 3-4 are buried in the buried sleeve 3-8. Continue to apply force downward evenly. The first rear roller 3 is flush with the sleeve rail 5-1, and the curved top 3-4 is released and popped out. The roller 3-3 enters the sleeve rail 5-1. The connecting rod 3-5 and the clamping edge 3-6 of the movable roller 3-1 work together, and the clamping path 3-13 is used to limit the position. Lift the front end of the drawer and put it The bottom of the two side panels rests on the first front roller 1, and the first front roller 1 can roll freely on the bottom of the two side panels of the drawer. At the same time, the first rear rollers 3 at the upper ends of the two sides of the drawer rear baffle can roll freely in the sleeve rail 5-1. When the drawer is pulled out, the first rear roller 3 operates to the front limit 5-10 of the sleeve rail 5-1, and the drawer is restricted from being pulled out; when the drawer is closed, the first rear roller 3 retreats to the landing card 5-7, pauses for a while, and then after further buffering by the buffer convex pad 5-6, it falls and stops in the landing cavity 5-5. Due to the drop of the landing cavity 5-5, the drawer is close to the cabinet, and the drawer assembly is completed.

[0033] If the drawer needs to be removed, pull the drawer until the first rear roller 3 runs to the exit slope 5-4 intersecting with the sleeve rail 5-1, lift the drawer upward, the exit slope 5-4 gradually compresses the arc top 3-4 of the first rear roller 3, so that it and the roller 3-3 are gradually buried in the embedding sleeve 3-8. After it is completely buried, move it horizontally to take out the drawer. Example 2

[0034] Reference Figure 1-3 ,6,7,8, the difference between this embodiment and embodiment 1 is that the first track groove 5 is replaced by the second track groove 7, and the second track groove 7 is arranged on the upper rear part of the first front roller 1 on the left and right vertical plates of the cabinet; the second track groove 7 is an elliptical track groove, and the track groove is a roller slide 7-1, and a gradual exit port 7-2 is provided at the upper rear part thereof, and the exit port 7-2 is a semi-elliptical groove, which intersects and communicates with the upper rear part of the track groove, and a landing groove 7-3 is provided at the lower rear end of the track groove, and the landing groove 7-3 intersects and communicates with the lower rear end of the track groove, and is a gradually downward lower groove, and the second track groove 7 cooperates with the first rear roller 3.

[0035] The rest is the same as in Example 1. Example 3

[0036] Reference Figure 1-3, 5, 7, 8, the present embodiment includes various cabinets and drawers, the left and right vertical plates of the cabinet are provided with a second front roller 2 and a third track groove 6, the corresponding drawers are provided with a second rear roller 4 at the upper rear ends on both sides, the second front roller 2 is rollingly matched with the bottom surfaces on both sides of the drawer, and the second rear roller 4 is rollingly matched with the third track groove 6 on the left and right vertical plates of the cabinet; the second front roller 2 is a combined cylinder, the front part of which is an embedded body 2-1, the outer side of the embedded body 2-1 is provided with a one-way tooth 2-2, the rear part of the second front roller 2 is provided with a roller 2-4, and the front and rear parts of the second front roller 2 are connected with a positioning pad 2-3 with a slightly larger diameter; the second front roller 2 is installed at the front end part below the track groove of the left and right vertical plates of the cabinet, and can be used together with the second rear roller 4.

[0037] The second rear roller 4 includes a roller pin 4-1 and a locking sleeve 4-8, the front end of the roller pin 4-1 is provided with an arc top 4-4, the rear part of the roller pin 4-1 is provided with a locking wire and a buckle 4-7, the rear end thereof is provided with a rib 4-5 larger than its diameter, the end of the rib 4-5 is provided with a locking groove 4-6; the locking sleeve 4-8 is a round tube, one end of which is provided with a rib 4-9 larger than its diameter, and the other end is provided with a locking wire and a buckle 4-10, the inner cavity diameter of the locking sleeve 4-8 is equal to or slightly larger than the diameter of the roller pin cylinder, and the locking sleeve and the roller pin 4-1 are through the through hole at the upper rear of the drawer side panel, and the lock is installed at the upper rear of the drawer side panel, which can be matched with the third track groove 6.

[0038] The third track groove 6 is arranged on the upper rear part of the second front roller 2 on the left and right vertical plates of the cabinet; the third track groove 6 includes a sleeve rail 6-1 and a plate groove 6-8, the sleeve rail B6-1 is an elliptical groove body, the groove body is a roller slide 6-2, the upper end of which is provided with a protruding decorative edge 6-3, the outer side of which is provided with a gradual clamping tooth 6-4, the rear lower end of the groove body is provided with a gradual downward landing slope 6-5, and the rear end is provided with a buffer convex pad 6-6; the plate groove 6-8 is an elliptical groove, the rear lower end of which is provided with a lower convex groove intersecting and communicating with it, the plate groove 6-8 is matched with the outer shape of the sleeve rail 6-1, the sleeve rail 6-1 is clamped in the plate groove 6-8 by its clamping tooth 6-4, and its decorative edge 6-3 covers the plate groove 6-8 so that the plate groove 6-8 is not exposed; the third track groove 6 cooperates with the second rear roller 4. Example 4

[0039] Reference Figure 1-3,6,7,8, the difference between this embodiment and embodiment 3 is that the third track groove 6 is replaced by the fourth track groove 8, and the fourth track groove 8 is arranged on the upper rear of the second front roller 2 on the left and right vertical plates of the cabinet; the fourth track groove 8 is an elliptical track groove, and the track groove is a roller slide 8-1, and a landing groove 8-2 is provided at its rear lower end, and the landing groove 8-2 is a lower convex groove that intersects and connects with the rear lower end of the track groove and gradually changes downward, and the fourth track groove 8 cooperates with the second rear roller 4.

[0040] The rest is the same as in Example 3. Example 5

[0041] Reference Figure 1-2 , 8, 9, the difference between this embodiment and embodiment 1 is that the first rear roller 3 is simplified and named as the third rear roller 9 after simplification. The third rear roller 9 includes an embedded sleeve 9-1, a movable roller and a spring 3-7. The embedded sleeve 9-1 is a tubular cylinder, a protruding positioning edge 9-2 is provided at its port, a tightening tooth 9-3 is provided on its outer side, and its inner cavity is a movable roller positioning telescopic cavity 9-4. The main body of the movable roller is a cylinder, one end of which is provided with a roller 9-8 that is directly equal to or slightly smaller than it, and the other end is provided with a protruding clamping edge 9-10, and the middle section is a positioning plug body. The end of the roller 9-8 is provided with a curved top 9-9, and the diameter of the clamping edge 9-10 is larger than the inner diameter of the embedded body 9-1 and slightly smaller than the outer diameter of the embedded sleeve 9-1. , the spring 3-7 is a ring spring; the third rear roller 9 is installed in the mounting holes at the upper parts of both ends of the drawer rear baffle, the mounting holes are round holes, the upper part of the round holes is the embedded sleeve 9-1 clamping position, and the lower part is the spring cavity 11-2; first put the spring 3-7 into the mounting hole, and then insert the movable roller from the roller end from the bottom of the embedded sleeve 9-1 and pass through the positioning edge 9-2, its clamping edge 9-10 is pressed against the bottom port of the embedded sleeve 9-1, and the embedded sleeve 9-1 is driven into the mounting hole until the positioning edge 9-2 is clamped on the end face of the mounting hole; apply pressure on the arc top 9-9 of the movable roller, the movable roller compresses the spring 3-7, shrinks it to be completely embedded in the sleeve 9-1, and its arc top 9-9 does not protrude from the positioning edge 9-2 of the embedded sleeve 9-1, and it pops out when the pressure is released.

[0042] Specific operation of the embodiment of the third rear roller 9: The third rear roller mounting hole 11 is made at the upper part of both sides of the rear baffle of the drawer, and the spring 3-7 is placed in the spring cavity 11-2 at the bottom of the hole. Then, the roller pin 9-6 is inserted from the bottom end surface 9-5 of the embedded sleeve 9-1 and passes through the movable roller positioning telescopic cavity 9-4, and passes through the front end positioning edge 9-2 of the embedded sleeve 9-1, and then embedded in the third rear roller mounting hole 11. The expansion teeth 9-3 of the embedded sleeve 9-1 are expanded and clamped in the upper embedded sleeve clamping position of the third rear roller mounting hole 11, and the positioning edge 9- 2 is stuck on the hole surface of the mounting hole 11, and the spring 3-7 bounces the clamping edge 9-10, so that the clamping edge 9-10 is stuck on the bottom end surface 9-5 of the embedded sleeve, and the roller 9-8 and the arc top 9-9 extend out of the positioning edge 9-2 of the embedded sleeve 9-1. When pressure is applied on the arc top 9-9, the positioning piston body 9-7 compresses the spring 3-7 inward along the movable roller positioning telescopic cavity 9-4, and the roller 9-8 and the arc top 9-9 can be completely buried in the embedded sleeve 9-1 without protruding from the positioning edge 9-2 of the embedded sleeve, and pop out when the pressure is released.

[0043] The rest is the same as in Example 1. Example 6

[0044] Reference Figure 1-2 ,8,9, the difference between this embodiment and embodiment 3 is that the second rear roller 4 is simplified and named as the fourth rear roller 10 after simplification. The fourth rear roller 10 is not provided with a locking sleeve 4-8, and the locking wire and buckle of the roller pin 4-1 are set as self-tapping screws 10-1. The roller pin 4-1 is directly locked in the through holes on the upper rear of the left and right side panels of the drawer through the self-tapping screws 10-1, and the roller 4-3 and the arc top 4-4 extend out of the through holes.

[0045] Specific operation of the embodiment of the fourth rear roller 10: The through-holes are drilled on the upper rear part of the left and right side panels of the drawer, and the fourth rear roller 10 is inserted from the inside to the outside into the through-holes, and the fourth rear roller 10 is locked in the through-holes through the locking groove 4-6 and the self-powered screw 10-1, and the roller 4-3 and the arc top 4-4 extend out of the through-holes. The rest is the same as in Example 1. Example 7

[0046] Reference Figure 1-10 , this embodiment is a supplement to embodiments 1-6.

[0047] The first rear roller 3 and the third rear roller 9 can be matched with not only the first track groove 5 and the second track groove 7, but also the third track groove 6 and the fourth track groove 8. When the first rear roller 3 and the third rear roller 9 are matched with the third track groove 6 / the fourth track groove 8 to disassemble the drawer, a disassembly pad 12 is used to assist. The shape of the disassembly pad 12 fits the front end of the third track groove 6 / the fourth track groove 8, and an exit slope 12-1 is provided therein, which gradually changes from the bottom surface of the third track groove 6 / the fourth track groove 8. The exit slope 12-1 gradually changes forward and upward at 90°. The disassembly pad 12 is placed at the front end of the third track groove 6 / the fourth track groove 8 when the drawer needs to be disassembled, and is not used when the drawer is in normal use.

[0048] Specific operation of the use embodiment of the disassembly pad 12: The disassembly pad 12 of this embodiment is suitable for disassembling drawers in which the first rear roller 3 and the third rear roller 9 are matched with the third track groove 6 / fourth track groove 8. When the first rear roller 3 and the third rear roller 9 are matched with the third track groove 6 or the fourth track groove 8, when disassembling the drawer, the disassembly pad 12 is placed at the front end of the third track groove 6 or the fourth track groove 8. When the first rear roller 3 or the third rear roller 9 runs to the front end of the third track groove 6 or the fourth track groove 8, the drawer is continuously pulled and drawn, so that the arc top 3-4 (9-9) of the first rear roller 3 or the third rear roller 9 enters the exit slope 12-1 of the disassembly pad 12, and the spring 3-7 is gradually compressed inwardly and retracted until it is completely buried in the buried sleeve 3-8 or 9-1, and the drawer can be directly pulled out to complete the disassembly.

[0049] The above-described embodiments only express several implementation methods of the present application, and the descriptions thereof are relatively specific and detailed, but they cannot be construed as limiting the scope of the patent application. It should be pointed out that, for a person of ordinary skill in the art, several variations and improvements can be made without departing from the concept of the present application, and these all belong to the protection scope of the present application. Therefore, the protection scope of the patent application shall be subject to the attached claims.

Claims

1. A hidden quick-install drawer track system, including various cabinets and drawers, characterized in that: The left and right vertical plates of the cabinet are provided with first front rollers and track grooves, and the corresponding upper rear ends of the drawers are provided with rear rollers. The first front rollers are rollingly matched with the bottom surfaces of the drawers on both sides, and the rear rollers are rollingly matched with the track grooves on the left and right vertical plates of the cabinet. The first front roller is a combined cylinder, the front part of which is a self-tapping screw, the rear part is provided with a roller, and the rear end head is provided with a locking groove. A positioning pad with a slightly larger diameter is provided at the middle part of the first front roller and the connection between the front and rear parts. The first front roller is installed at the front end part below the track groove of the left and right vertical plates of the cabinet, and can be used in conjunction with the rear roller.

2. A hidden quick-install drawer track system, including various cabinets and drawers, characterized in that: The left and right vertical plates of the cabinet are provided with second front rollers and track grooves, and the corresponding upper rear ends of the drawers are provided with rear rollers. The second front rollers are rollingly matched with the bottom surfaces on both sides of the drawers, and the rear rollers are rollingly matched with the track grooves on the left and right vertical plates of the cabinet. The second front rollers are combined cylinders, the front part of which is an embedded body, and the outer side of the embedded body is provided with one-way teeth, the rear part of the second front roller is provided with a roller, and a positioning pad with a slightly larger diameter is provided at the junction of the front and rear parts of the second front roller; the second front roller is installed at the front end part below the track grooves of the left and right vertical plates of the cabinet, and can be used in conjunction with the rear rollers.

3. The hidden quick-install drawer rail system according to claim 1 or 2, characterized in that: The rear rollers are divided into the first rear roller, the second rear roller, the third rear roller and the fourth rear roller, and the track grooves are divided into the first track groove, the second track groove, the third track groove and the fourth track groove; when the first track groove or the third track groove is provided on the left and right vertical plates of the cabinet, the first rear roller or the third rear roller is provided on the upper rear ends of both sides of the corresponding drawers; when the second track groove or the fourth track groove is provided on the left and right vertical plates of the cabinet, the second rear roller or the fourth rear roller is provided on the upper rear ends of both sides of the corresponding drawers.

4. The hidden quick-install drawer rail system according to claim 3, characterized in that: The first rear roller comprises an embedded sleeve, a movable roller and a spring. The embedded sleeve is a tubular column with a protruding one-way tooth on the outside and a protruding positioning edge at the end. The upper part of the inner cavity of the embedded sleeve is provided with a roller telescopic cavity, and the lower part of the inner cavity is provided with a spring cavity. The middle part of the inner cavity of the embedded sleeve is provided with an inwardly protruding card channel. The main body of the movable roller is a cylindrical piston body, one end of which is provided with a roller with the same or slightly smaller diameter as the movable roller, and the other end is provided with a connecting rod with a smaller diameter than the movable roller. The head is provided with an arcuate top, the end of the connecting rod is provided with a protruding clamping edge, the movable roller is clamped in the embedded sleeve, and the spring is installed in the spring cavity of the embedded sleeve. The spring pushes the clamping edge of the movable roller, so that the arcuate top of the movable roller and the roller protrude from the positioning edge of the embedded sleeve. Applying force on the arcuate top to compress the spring can make the roller and the arcuate top completely embedded in the embedded sleeve, and pop out when the pressure is released. The first rear roller is installed at the upper end of the drawer rear baffle, and can be matched with one of the first track groove / the third track groove.

5. The hidden quick-install drawer rail system according to claim 3, characterized in that: The second rear roller comprises a roller pin and a locking sleeve, the front end of the roller pin is provided with a roller, the rear part of the roller pin is provided with a locking wire and a buckle, the rear end is provided with a rib larger than its diameter, and the end of the rib is provided with a locking groove; the locking sleeve is a round tube, one end of which is provided with a rib larger than its diameter, and a locking wire and a buckle are provided in the tube cavity at the other end, the inner cavity diameter of the locking sleeve is equal to or slightly larger than the diameter of the cylindrical body of the roller pin, and the locking sleeve and the roller pin are installed at the rear upper part of the drawer side panel through the through-hole at the upper rear part of the drawer side panel, and can be matched with one of the second track groove and the fourth track groove; the difference between the fourth rear roller and the second rear roller is that no locking sleeve is provided, the locking wire and the buckle of the roller pin are set as self-tapping screws, and the roller pin is directly locked in the through-holes at the upper rear part of the left and right side panels of the drawer through the self-tapping screws, and its roller and the arc top extend out of the through-holes.

6. The hidden quick-install drawer rail system according to claim 3, characterized in that: The third rear roller includes an embedded sleeve, a movable roller and a spring. The embedded sleeve is a tubular cylinder with a protruding positioning edge at its port and expansion teeth on its outer side. Its inner cavity is a movable roller positioning and telescopic cavity. The main body of the movable roller is a cylinder with a roller directly equal to or slightly smaller than it at one end and a protruding clamping edge at the other end. The middle section is a positioning plug body. The end of the roller is provided with an arc top. The diameter of the clamping edge is larger than the inner diameter of the embedded body and slightly smaller than the outer diameter of the embedded sleeve. The spring is a coil spring. The first rear roller is installed in the mounting holes at the upper parts of the two ends of the drawer rear baffle. The mounting holes are round holes. The upper part of the round hole is the embedded sleeve clamping position, and the lower part is the spring cavity.

7. The hidden quick-install drawer rail system according to claim 3, characterized in that: The first track groove is arranged on the upper rear part of the first front roller or the second front roller on the left and right vertical plates of the cabinet; the first track groove includes a sleeve rail and a plate groove, the sleeve rail is an elliptical groove body, the elliptical groove body is a roller slideway, the upper end of which is provided with a protruding decorative edge, and the bottom of which is provided with a clamping tooth, the upper rear part of the convex groove body is provided with a gradually inclined exit slope, the lower rear end is provided with a gradually downward landing slope, the rear end is provided with a buffer convex pad, the front end of the landing slope is provided with a landing card, the plate groove is a T-shaped groove, the front and rear ends are circular holes, the bottom of the middle section is equal to the diameter of the circular hole, the width of the upper groove is less than the diameter of the circular hole, and the upper rear part of the plate groove is provided with a protruding groove, The plate groove matches the outer shape of the sleeve rail, and the sleeve rail is clamped in the plate groove through its clamping teeth, and its decorative edge covers the plate groove so that the plate groove is not exposed; the first track groove cooperates with the first rear roller.

8. The hidden quick-install drawer rail system according to claim 3, characterized in that: The second track groove is arranged on the upper rear part of the first front roller or the second front roller on the left and right vertical plates of the cabinet; the second track groove includes a sleeve rail and a plate groove, the sleeve rail is an elliptical groove body, the groove body is a roller slide, the upper end of the sleeve rail is provided with a protruding decorative edge, the bottom of the sleeve rail is provided with a clamping tooth, the rear lower end of the groove body is provided with a gradually downward landing slope, and the rear end is provided with a buffer convex pad; the front end of the landing slope is provided with a landing card, the plate groove is a T-shaped groove, the front and rear ends of the groove are circular holes, the bottom of the middle section is equal to the diameter of the circular hole, the width of the upper groove is less than the diameter of the circular hole, the plate groove matches the shape of the sleeve rail, the sleeve rail is clamped in the plate groove by its clamping teeth, and its decorative edge covers the plate groove so that the plate groove is not exposed; the second track groove cooperates with the second rear roller.

9. The hidden quick-install drawer rail system according to claim 3, characterized in that: The third track groove is arranged on the upper rear part of the first front roller or the second front roller on the left and right vertical plates of the cabinet; the third track groove is an elliptical track groove, and the track groove is a roller slide, and a gradual exit port is provided at the upper rear part thereof, and the exit port is a semi-elliptical groove, which intersects and communicates with the upper rear part of the track groove, and a landing groove with a slightly larger diameter is provided at the lower rear end of the track groove, and the landing groove intersects and communicates with the rear end of the track groove, and the third track groove cooperates with the first rear roller.

10. The hidden quick-install drawer rail system according to claim 3, characterized in that: The fourth track groove is arranged on the upper rear part of the first front roller or the second front roller on the left and right vertical plates of the cabinet; the fourth track groove is an elliptical track groove, and the track groove is a roller slide, and a landing groove with a slightly larger diameter is provided at its rear lower end, and the landing groove intersects and is connected with the rear end of the track groove, and the fourth track groove cooperates with the second rear roller.

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