Shelf buckle with double positioning lock catches

Abstract

A shelf buckle with double positioning lock catches comprises a fixing piece used for being installed on the inner wall of a refrigerator, a supporting sliding block is arranged on the fixing piece in the length direction of the fixing piece in a sliding mode, and a plurality of positioning parts are arranged on the fixing piece in the length direction. The supporting sliding block is provided with a positioning block which can abut against the positioning part to position the supporting sliding block, the supporting sliding block is provided with a supporting groove, the upper end of the supporting groove is provided with an opening, one end of the shelf can be placed in the supporting groove, and the supporting groove is used for supporting the shelf. One end of the lock catch is provided with a first positioning end capable of locking the positioning block to enable the positioning block to be kept on the positioning part, and the other end of the lock catch is provided with a second positioning end capable of locking the shelf on the supporting groove. The installation space is reduced, the slideway space for placing beverages on the shelf is not occupied, and the use is convenient; by arranging the positioning protruding point, when the first positioning end rotates away from the locking end, the positioning end cannot be unlocked immediately, the positioning block needs to be shifted to rotate, the positioning protruding point slides out of the positioning clamping groove, the supporting sliding block can move up and down, double insurance is achieved, and use is convenient.

Description

[Technical field]

[0001] The utility model relates to a shelf buckle for supporting a shelf in a freezer. [Background technology]

[0002] Generally, freezers (refrigerators, refrigerators, etc.) place items by setting up shelves, and the height between the shelves determines the height at which the items can be placed. However, the height of the items is different, so the shelves need to be adjustable. In order to prevent the shelves from falling off, there are usually two ways to fix the adjustable shelves on the market. One is like the patent number 201822061196.1, which is called a sliding support frame for refrigerator shelves. Two hooks are set on the support groove to buckle the shelves. In this way, although the shelves are buckled stably, it is not very convenient to take them out. Another is the patent number 202020519643.8, which is called a rotary locking freezer shelf support device. It seals the opening of the support groove by rotating the buckle, so that part of the shelf is locked and will not jump out. Although these two schemes can lock the shelves, they require two positioning devices, one for the shelf and the other for the slider, which has many parts and high costs. [Contents of the utility model]

[0003] The utility model aims to overcome the deficiencies of the prior art and provide a shelf buckle with double positioning lock buckles which has a simple structure and is easy to use.

[0004] In order to solve the above problems, the utility model adopts the following technical solutions:

[0005] A shelf buckle with a double positioning lock comprises a fixing plate for installation on the inner wall of a refrigerator, a supporting slider slidably provided on the fixing plate along the length direction of the fixing plate, a plurality of positioning parts are provided on the fixing plate along the length direction, a positioning block is provided on the supporting slider and can be pressed against the positioning part to position the supporting slider, an upper end opening is provided on the supporting slider for inserting one end of the shelf into a supporting groove for supporting the shelf, a lock is rotatably provided on the supporting slider, a first positioning end is provided at one end of the lock and can lock the positioning block so that the positioning block is kept on the positioning part, and a second positioning end is provided at the other end of the lock and can lock the shelf on the supporting groove.

[0006] In the above-mentioned shelf buckle with double positioning lock buckles, the first positioning end rotates around the rotating shaft of the lock buckle to lock the positioning block, and the second positioning end locks the shelf.

[0007] In the above-mentioned shelf buckle with double positioning lock buckles, after the first positioning end rotates around the rotation axis of the lock buckle and engages with the positioning block for positioning, the second positioning end locks the shelf.

[0008] In the above-mentioned shelf buckle with double positioning lock buckles, the first positioning end rotates around the rotating shaft of the lock buckle and engages with the supporting slider, while the second positioning end locks the shelf.

[0009] In the above-mentioned shelf buckle with double positioning lock buckles, the second positioning end is pressed against the upper end of one end of the shelf to lock the shelf.

[0010] As described above, a shelf buckle with a double positioning lock, the second positioning end includes a pressing end with one end integrally connected to the lock and pressed against the upper end of one end of the shelf, and the end of the pressing end is integrally connected with a pressing end that bypasses the upper end of one end of the shelf and buckles on the side of one end of the shelf.

[0011] In the above-mentioned shelf buckle with double positioning lock buckles, the first positioning end cover is on the opening of the support groove.

[0012] In the above-mentioned shelf buckle with double positioning lock buckles, the buckling end extends downwardly obliquely relative to the pressing end.

[0013] As described above, a shelf buckle with a double positioning lock, the two side walls of the supporting slider are respectively provided with a rotating shaft, the lock is a round body surrounded by a rod, the middle part of the lock is provided with a rotating shaft groove buckled on the rotating shaft, the rotating shaft groove is located in the middle part of the round body, the first positioning end and the second positioning end are respectively located at two ends of the rotating shaft groove, the first positioning end is bent downward to form a U shape, and the second positioning end is bent upward to form a hook shape.

[0014] As described above, a shelf buckle with double positioning locks, the supporting slider is provided with a positioning installation groove, the positioning block is rotatably inserted in the positioning installation groove, the positioning block is provided with a positioning end that can be pressed against the positioning part for positioning, a locking end provided at the lower end of the positioning block, and a spring-loaded end provided at the upper end of the positioning block and opposite to the top wall of the positioning installation groove, a positioning spring that can spring-load the spring-loaded end and rotate the positioning end toward one side of the positioning part is provided between the spring-loaded end and the top wall of the positioning installation groove, and the first positioning end is buckled on the locking end.

[0015] In the above-mentioned shelf buckle with double positioning lock buckles, the side of the positioning end is provided with a positioning slot, and the supporting sliding block is provided with a positioning protrusion that can slide relatively into the positioning slot.

[0016] As described above, a shelf buckle with double positioning locks, the supporting slide block is provided with a positioning installation groove, the positioning block is rotatably inserted in the positioning installation groove, the positioning block is provided with a positioning end that can be pressed against the positioning part for positioning, the upper end of the positioning block is provided with an elastic end that can elastically press against the top wall of the positioning installation groove to rotate the positioning end toward the positioning part, the lower end of the positioning block is provided with a locking end on the side away from the positioning end, and the first positioning end is buckled on the locking end.

[0017] As described above, a shelf buckle with double positioning lock buckles, the supporting slide block is provided with a positioning installation groove, the positioning block is an elastic wall integrally formed on the top wall of the positioning installation groove, the positioning block is provided with a positioning end that can be pressed against the positioning part for positioning, and the end face of the positioning block is provided with a first buckle position for the first positioning end to buckle.

[0018] In the above-mentioned shelf buckle with double positioning lock buckles, the supporting slider is provided with a lock buckle installation groove, and the lock buckle part is installed in the lock buckle installation groove.

[0019] As described above, a shelf buckle with double positioning locks is provided, the supporting slider is provided with a positioning installation groove, the positioning block is rotatably inserted in the positioning installation groove, the positioning block is provided with a positioning end that can be pressed against the positioning part for positioning, a positioning torsion spring that can press the positioning block to rotate the positioning end toward one side of the positioning part is provided between the positioning installation groove and the positioning block, the positioning block is provided with a blocking end, and the supporting slider is provided with a second buckle position for the first positioning end to buckle, and when the first positioning end is buckled on the second buckle position, the first positioning end blocks the blocking end.

[0020] As described above, a shelf buckle with double positioning locks, a window is provided on the middle part of a side wall of the support groove close to the fixed plate, the upper end of the second positioning end extends out of the window and covers the opening of the support groove, the positioning block is provided with a plug-in shaft plugged into the side wall of the positioning installation groove, the lock is rotatably provided on the plug-in shaft, and the positioning torsion spring is sleeved on the plug-in shaft.

[0021] As described above, a shelf buckle with double positioning locks is provided with a window on the middle part of a side wall of the support groove close to the fixed plate, the upper end of the second positioning end extends out of the window and covers the opening of the support groove, the support slider is provided with a positioning installation groove, the positioning block is provided with a plug-in shaft plugged into the side wall of the positioning installation groove, the plug-in shaft is sleeved with a positioning torsion spring that can press the positioning block to rotate the positioning end toward the side of the positioning part, the positioning block is provided with a positioning end that can be pressed against the positioning part for positioning and a third buckle position for the first positioning end to buckle, and the middle part of the lock is rotatably provided on the plug-in shaft.

[0022] As described above, in a shelf buckle with double positioning locks, the side wall of the supporting slider is provided with a positioning protrusion that can block the lock when the first positioning end locks the positioning block, and a positioning groove for the lock to slide into when the first positioning end is turned away from the positioning block and unlocked.

[0023] As described above, in a shelf clip with double positioning locks, the positioning portion is a positioning protrusion, both ends of the positioning protrusion are connected to the fixing plate, and the middle part is separated from the fixing plate to form a separation hole, the positioning end is pressed against the upper end of the positioning protrusion, and the upper end of the positioning end is provided with a positioning buckle platform that can be buckled in the separation hole located above the positioning end.

[0024] The space-saving shelf column as described above includes a positioning portion and a positioning boss.

[0025] In the above-mentioned space-saving shelf column, the positioning portion is a positioning hole.

[0026] The utility model has the following beneficial effects: the lock buckle has a first positioning end and a second positioning end, the first positioning end locks the positioning block so that the supporting sliding block is supported on the positioning portion and cannot slide downward, and the second positioning end locks the layer shelf so that the layer shelf will not jump out of the supporting groove, so that only one lock buckle is needed to achieve two-position locking; the two locking ends restrain each other and are not easy to loosen automatically; the second positioning end directly presses the layer shelf, so that the portion of the locking buckle extending outward to the layer shelf is small, thereby reducing the installation space, and will not occupy the slide space for placing beverages on the layer shelf, which is convenient to use; by setting the positioning convex point, when the first positioning end is turned away from the locking end, the positioning end will not be unlocked immediately, but needs to be rotated by toggling the positioning block to make the positioning convex point slide out of the positioning slot, so that the supporting sliding block can move up and down, which has double insurance and is convenient to use.

Brief Description of the Drawings

[0027] Figure 1 It is a three-dimensional diagram of the first embodiment of the utility model;

[0028] Figure 2 This is an exploded view of the first embodiment of the utility model;

[0029] Figure 3 It is a three-dimensional diagram of components of the first embodiment of the utility model;

[0030] Figure 4 A reference diagram of the use state of the first embodiment of the utility model;

[0031] Figure 5 for Figure 4 A magnified view of part I;

[0032] Figure 6 It is a three-dimensional diagram of the second embodiment of the utility model;

[0033] Figure 7This is an exploded view of the second embodiment of the present utility model;

[0034] Figure 8 It is a three-dimensional diagram of the third embodiment of the present utility model;

[0035] Fig. 9 It is a three-dimensional diagram of components of the third embodiment of the present utility model;

[0036] Fig.10 It is a three-dimensional diagram of the fourth embodiment of the utility model;

[0037] Fig.11 This is an exploded view of the fourth embodiment of the utility model;

[0038] Fig.12 It is a three-dimensional diagram of the fifth embodiment of the utility model;

[0039] Fig.13 It is a three-dimensional diagram of components of the fifth embodiment of the utility model;

[0040] Fig.14 It is a three-dimensional diagram of the sixth embodiment of the utility model;

[0041] Fig.15 This is an exploded view of the sixth embodiment of the present utility model;

[0042] Fig.16 It is a three-dimensional diagram of the seventh embodiment of the present utility model. [Specific implementation method]

[0043] The present invention is further described in detail below in conjunction with the accompanying drawings and specific implementation methods:

[0044] Embodiment 1, as Figures 1 to 5As shown, a shelf buckle with double positioning locks includes a fixing plate 1 for installation on the inner wall of a refrigerator. The fixing plate 1 is arranged vertically. The fixing plate 1 is usually fixed on two opposite surfaces of the refrigerator, and two fixing plates are separated on each surface. A support slider 2 is slidably provided on the fixing plate 1 along the length direction of the fixing plate. The left and right sides of the fixing plate 1 are provided with guide slide grooves extending vertically. The support slider 2 is provided with guide slide rails buckled into the guide slide grooves. A plurality of positioning parts 3 are provided on the fixing plate 1 at intervals along the length direction. In this embodiment, the positioning part 3 is a positioning boss, and the positioning boss can be in the shape of an arc, an arch, etc. A positioning block 4 is provided on the support slider 2, which can be pressed against the positioning part 3 to position the support slider 2. One end of the positioning block 4 is pressed against the upper end face of the positioning boss, thereby positioning; the structural form of the positioning part 3 and the positioning block 4 is not limited to the boss, and includes all structures in which the positioning part 3 and the positioning block 4 form a positioning function. The support slider 2 is provided with an upper opening for inserting one end of the shelf into a support groove 21 for supporting the shelf, and the bottom frame or support rod of the shelf is inserted into the support groove 21. The support slider 2 is rotatably provided with a lock buckle 5, one end of which is provided with a first positioning end 51 capable of locking the positioning block 4 so that the positioning block 4 is retained on the positioning portion 3, and the other end of the lock buckle 5 is provided with a second positioning end 52 capable of locking the shelf on the support groove 21. After the first positioning end 51 rotates around the rotation axis of the lock buckle 5 to lock the positioning block 4, the second positioning end 52 locks the shelf. Specifically, after the first positioning end 51 rotates around the rotation axis of the lock buckle 5 to engage with the positioning block 4 and is positioned, the second positioning end 52 locks the shelf.

[0045] In order to save shelf space, the first positioning end 51 covers the opening of the supporting groove 21, and the second positioning end 52 presses against the upper end of one end of the shelf to lock the shelf. In order to buckle it firmly, the second positioning end 52 includes a pressing end 53 which is integrally connected to the lock buckle 5 and pressed against the upper end of one end of the shelf. One end of the pressing end 53 is integrally connected with a pressing end 54 which bypasses the upper end of one end of the shelf and buckles on the side of one end of the shelf. The connection between the pressing end 53 and the pressing end 54 is bent and extends downward, which is easy to buckle to the side. The pressing end 53 and the pressing end 54 form a hook, so that the second positioning end 52 is hooked with the side of the shelf, and the first positioning end 51 is buckled and locked with the positioning part 3, so the second positioning end 52 is also locked. In this way, both ends are buckled and positioned, and a mutual restraining effect is activated, and the shelf is not easy to loosen or automatically disengage.

[0046] To facilitate installation, a rotating shaft 22 is respectively provided on the two side walls of the supporting slider 2. The lock buckle 5 is a ring-shaped body formed by multiple bendings of a rod. The two ends of the rod form a ring-shaped body relative to each other. A rotating shaft groove 55 is provided in the middle of the lock buckle 5, which is buckled on the rotating shaft 22. The rotating shaft groove 55 is bent. The rotating shaft groove 55 is located in the middle of the ring-shaped body. The first positioning end 51 and the second positioning end 52 are respectively located at the two ends of the rotating shaft groove 55. The first positioning end 51 is bent downward to form a U shape, and the second positioning end 52 is bent upward to form a hook shape. A lock buckle installation groove 26 is provided on the support slider 2, and the lock buckle 5 is partially installed in the lock buckle installation groove 26. An air avoidance hole is provided on the side of the support groove 21 close to the fixed plate 1. The lock buckle installation groove 26 extends from a side wall of the support groove 21 close to the fixed plate 1 to the left and right sides of the support groove 21. The part of the lock buckle 5 above the rotating shaft 22 is installed in the lock buckle installation groove 26, and the lock buckle 5 is stable. An arc support is provided on the support slider 2 below the rotating shaft 22 to support the rotating shaft groove 55.

[0047] A positioning and mounting groove 23 is provided on the support slider 2, and the positioning block 4 can be rotatably inserted in the positioning and mounting groove 23. The positioning block 4 is provided with a positioning end 42 that can be pressed against the positioning part 3 for positioning, a locking end 43 provided at the lower end of the positioning block 4, and a spring-pressing end 44 provided at the upper end of the positioning block 4 and opposite to the top wall of the positioning and mounting groove 23. The positioning end 42 is provided on the lower part of one side of the positioning block 4 close to the fixed plate 1, and the spring-pressing end 44 and the locking end 43 are respectively provided at the upper and lower ends of the same side of the positioning block 4. A positioning spring 45 is provided between the spring-pressing end 44 and the top wall of the positioning and mounting groove 23, which can spring the spring-pressing end 44 to make the positioning end 42 rotate toward the side of the positioning part 3. The first positioning end 51 is buckled on the locking end 43, and a buckle groove is provided on the locking end 43, and the first positioning end 51 is buckled in the buckle groove. A positioning slot 46 is provided on the side of the positioning end 42, and a positioning protrusion 24 is provided on the supporting slider 2 which can slide relatively into the positioning slot 46. After the first positioning end 51 is unlocked, the supporting slider 2 cannot move downward immediately, but needs to rotate the positioning block 4 to make the positioning protrusion 24 slide relatively out of the positioning slot 46, which can play a safety role.

[0048] Embodiment 2, as Figure 6 and 7As shown, the difference from the first embodiment is that the positioning portion 3 is a positioning hole, and the structural form of the positioning block 4 is different. Specifically, a positioning mounting groove 23 is provided on the support slider 2, and the positioning block 4 can be rotatably inserted in the positioning mounting groove 23. A positioning end 42 that can be pressed against the positioning portion 3 for positioning is provided on the positioning block 4. The positioning end 42 is arranged on the lower end of the positioning block 4 close to the positioning portion 3. An elastic end 47 that can elastically press against the top wall of the positioning mounting groove 23 to rotate the positioning end 42 toward the positioning portion 3 is provided on the upper end of the positioning block 4. The elastic end 47 is hook-shaped and has a certain elastic force. The elastic pressing against the top wall of the positioning mounting groove 23 allows the positioning block 4 to rotate so that the positioning end 42 rotates toward the positioning portion 3. A locking end 43 is provided on the side of the lower end of the positioning block 4 away from the positioning end 42. The first positioning end 51 is buckled on the locking end 43. The locking end 43 has a buckle groove, and the first positioning end 51 is stuck in the buckle groove.

[0049] Embodiment three, as Figure 8 and 9 As shown, the difference from the first embodiment is that the structure of the positioning block 4 is different. Specifically, the support slider 2 is provided with a positioning installation groove 23, and the positioning block 4 is an elastic wall integrally formed and arranged on the top wall of the positioning installation groove 23. The positioning block 4 is provided with a positioning end 42 that can be pressed against the positioning portion 3 for positioning. The positioning end 42 is at an end close to the fixing plate 1. The positioning block 4 is provided with a first buckle position 50 for the first positioning end 51 to buckle. The first buckle position 50 is arranged at an end away from the fixing plate 1. The first buckle position 50 is arranged at the lower end of the positioning block 4. The first buckle position 50 is a buckle groove, and the first positioning end 51 downwardly presses the first buckle position 50. In this embodiment, the support groove 21 has a protrusion, and the lock buckle 5 is clamped on both sides of the protrusion after coming out of the lock buckle installation groove 26.

[0050] Embodiment 4, as Fig.10 and 11As shown, the difference from the first embodiment is that the lock buckle 5 is rotatably arranged on the positioning block 4, and when the first positioning end 51 rotates around the rotating shaft of the lock buckle 5 and buckles with the supporting slider 2 to support the positioning block 4, the second positioning end 52 locks the shelf, and the structural form of the positioning block 4 is different. The supporting slider 2 is provided with a positioning installation groove 23, and the positioning block 4 is rotatably inserted in the positioning installation groove 23. The positioning block 4 is provided with a positioning end 42 that can be pressed against the positioning portion 3 for positioning, and the positioning installation groove 23 and the positioning block 4 are located between the positioning installation groove 23 and the positioning block 4. A positioning torsion spring 31 is provided which can press the positioning block 4 to make the positioning end 42 rotate toward one side of the positioning portion 3. A stopping end 32 is provided on the positioning block 4. A second buckle position 25 for the first positioning end 51 to snap is provided on the supporting slider 2. The second buckle position 25 is a groove provided at the upper and lower ends of the supporting slider 2. The first positioning end 51 rotates and slides into the second buckle position 25. When the first positioning end 51 is snapped on the second buckle position 25, the first positioning end 51 blocks the stopping end 32. In this way, the positioning block 4 is limited and the positioning block 4 will not rotate out. A window 33 is provided on the middle part of a side wall of the support groove 21 close to the fixing plate 1, and the upper end of the second positioning end 52 extends out from the window 33 to cover the opening of the support groove 21. The positioning block 4 is provided with a plug-in shaft 40 plugged into the side wall of the positioning installation groove 23, and the lock buckle 5 is rotatably provided on the plug-in shaft 40. The lock buckle 5 is bent into a circle to form a shaft groove 55, and the shaft groove 55 is sleeved on the plug-in shaft 40. The positioning torsion spring 31 is sleeved on the plug-in shaft 40, and the shaft groove 55 is on the inner side and the positioning torsion spring 31 is on the outer side.

[0051] Embodiment 5, as Fig.12 and 13 As shown, the difference from the fourth embodiment is that the structural form of the positioning block 4 is different, and the locking position of the first positioning end 51 is different. Specifically, a window 33 is provided on the middle part of the side wall of the support groove 21 close to the fixing plate 1, and the upper end of the second positioning end 52 extends from the window 33 to cover the opening of the support groove 21. The support slider 2 is provided with a positioning installation groove 23, and the positioning block 4 is provided with a plug-in shaft 40 plugged into the side wall of the positioning installation groove 23, and the plug-in shaft 40 is sleeved with a spring-loaded positioning block 4 The positioning end 42 is made to rotate the positioning torsion spring 31 toward one side of the positioning part 3. The positioning block 4 is provided with a positioning end 42 that can be pressed against the positioning part 3 for positioning and a third buckle position 27 for the first positioning end 51 to be snapped. The positioning end 42 and the third buckle position 27 are respectively arranged on two opposite surfaces of the positioning block 4. The middle part of the lock buckle 5 is rotatably arranged on the plug-in shaft 40. The third buckle position 27 is a groove and is arranged at the lower end of the positioning block 4. After the first positioning end 51 is snapped on the third buckle position 27, the positioning end 42 cannot be rotated away from the positioning part 3.

[0052] Embodiment six, as Fig.14 and 15As shown, the difference from the first embodiment is that there is an additional positioning for the lock buckle 5 and a positioning end 42. Specifically, the side wall of the supporting slider 2 is provided with a positioning protrusion 30 that can block the lock buckle 5 when the first positioning end 51 locks the positioning block 4, and a positioning groove for the lock buckle 5 to slide into when the first positioning end 51 is turned away from the positioning block 4 and unlocked. The positioning protrusion 30 has an inclined guide surface to allow the lock buckle 5 to slide smoothly and buckle on one side of the positioning protrusion 30. When unlocked, the lock buckle 5 relies on elastic force to squeeze with the positioning protrusion 30, and the positioning groove prevents the lock buckle 5 from rotating at will when it is in a free state. The positioning portion 3 is a positioning protrusion, the two ends of the positioning protrusion are connected to the fixing plate 1, and the middle part is separated from the fixing plate 1 to form a separation hole 11. The positioning end 42 is pressed against the upper end of the positioning protrusion, and the upper end of the positioning block 4 is provided with a positioning buckle platform 48 that can be buckled in the separation hole 11 located above the positioning end 42. The positioning end 42 is located between two adjacent positioning protrusions, and the lower end of the positioning end 42 is pressed against the positioning protrusion below, and the upper end of the positioning end 42 is buckled in the separation hole 11 at the lower end of the upper positioning protrusion. Through the positioning of the positioning buckle platform 48, the support slider 2 will not arbitrarily detach from the positioning portion 3. Of course, the positioning buckle platform 48 will not be buckled, and the buckling amount of the positioning buckle platform 48 is small, about 0.1-1.5mm.

[0053] Embodiment seven, as Fig.16 As shown, the difference from the first embodiment is that the shape of the positioning portion 3 is different. In this embodiment, the lower end of the positioning portion 3 is connected to the fixing plate 1, and the place where the lower end of the positioning portion 3 is connected to the fixing plate 1 is an arc transition. The upper end of the positioning portion 3 is convex, and the middle part of the upper end of the positioning portion 3 is separated from the fixing plate 1 to form a gap.

[0054] The above contents are further detailed descriptions of the present invention in combination with specific preferred technical solutions, and it cannot be determined that the specific implementation of the present invention is limited to these descriptions. For ordinary technicians in the technical field to which the present invention belongs, several simple deductions or substitutions can be made without departing from the concept of the present invention, which should be regarded as falling within the scope of protection of the utility model.

Claims

1. A shelf buckle with a double positioning lock, comprising a fixing plate (1) for mounting on the inner wall of a refrigerator, a supporting slider (2) being slidably provided on the fixing plate (1) along the length direction of the fixing plate, a plurality of positioning portions (3) being provided on the fixing plate (1) along the length direction, a positioning block (4) being provided on the supporting slider (2) and being able to press against the positioning portions (3) to position the supporting slider (2), an upper end opening being provided on the supporting slider (2) for placing one end of the shelf into a supporting groove (21) for supporting the shelf, characterized in that: A lock buckle (5) is rotatably provided on the supporting slide block (2) or the positioning block (4); one end of the lock buckle (5) is provided with a first positioning end (51) capable of locking the positioning block (4) so ​​that the positioning block (4) is retained on the positioning portion (3); and the other end of the lock buckle (5) is provided with a second positioning end (52) capable of locking the shelf on the supporting groove (21).

2. A shelf buckle with double positioning lock buckles according to claim 1, characterized in that: The first positioning end (51) rotates around the rotating shaft of the lock buckle (5) to lock the positioning block (4), and the second positioning end (52) locks the shelf.

3. A shelf buckle with double positioning lock buckles according to claim 2, characterized in that: After the first positioning end (51) rotates around the rotating shaft of the lock buckle (5) and engages with the positioning block (4) for positioning, the second positioning end (52) locks the shelf.

4. A shelf buckle with double positioning lock buckles according to claim 2, characterized in that: The first positioning end (51) rotates around the rotating shaft of the lock buckle (5) to engage with the supporting sliding block (2), while the second positioning end (52) locks the shelf.

5. The shelf buckle with double positioning lock buckle according to claim 1, characterized in that: The second positioning end (52) is pressed against the upper end of one end of the shelf to lock the shelf.

6. A shelf buckle with double positioning lock buckles according to claim 5, characterized in that: The second positioning end (52) comprises a pressing end (53) whose one end is integrally connected to the lock buckle (5) and pressed against the upper end of one end of the shelf, and the end of the pressing end (53) is integrally connected to a pressing end (54) that bypasses the upper end of one end of the shelf and is buckled on the side of one end of the shelf.

7. A shelf buckle with double positioning lock buckles according to claim 5, characterized in that: The first positioning end (51) covers the opening of the supporting groove (21).

8. The shelf buckle with double positioning lock buckles according to claim 6, characterized in that: The pressing end (54) extends obliquely downward relative to the pressing end (53).

9. A shelf buckle with double positioning lock buckles according to claim 1 or 8, characterized in that: The two side walls of the supporting slide block (2) are respectively provided with a rotating shaft (22); the locking buckle (5) is a round-shaped body surrounded by a rod; a rotating shaft groove (55) buckled on the rotating shaft (22) is provided in the middle of the locking buckle (5); the rotating shaft groove (55) is located in the middle of the round-shaped body; the first positioning end (51) and the second positioning end (52) are respectively located at two ends of the rotating shaft groove (55); the first positioning end (51) is bent downward to form a U shape; and the second positioning end (52) is bent upward to form a hook shape.

10. The shelf buckle with double positioning lock buckles according to claim 1, characterized in that: The supporting slide block (2) is provided with a positioning installation groove (23), the positioning block (4) is rotatably inserted in the positioning installation groove (23), the positioning block (4) is provided with a positioning end (42) that can be pressed against the positioning portion (3) for positioning, a locking end (43) provided at the lower end of the positioning block (4), and a spring-loaded end (44) provided at the upper end of the positioning block (4) and opposite to the top wall of the positioning installation groove (23), a positioning spring (45) that can spring-loaded the spring-loaded end (44) and make the positioning end (42) rotate toward one side of the positioning portion (3) is provided between the spring-loaded end (44) and the top wall of the positioning installation groove (23), and the first positioning end (51) is buckled on the locking end (43).

11. A shelf buckle with double positioning lock buckles according to claim 10, characterized in that: A positioning slot (46) is provided on the side of the positioning end (42), and a positioning protrusion (24) capable of relatively sliding into the positioning slot (46) is provided on the supporting slide block (2).

12. The shelf buckle with double positioning lock buckles according to claim 1, characterized in that: The supporting slide block (2) is provided with a positioning installation groove (23), the positioning block (4) is rotatably inserted in the positioning installation groove (23), the positioning block (4) is provided with a positioning end (42) that can be pressed against the positioning portion (3) for positioning, the upper end of the positioning block (4) is provided with an elastic end (47) that can elastically press against the top wall of the positioning installation groove (23) so that the positioning end (42) rotates toward one side of the positioning portion (3), and the lower end of the positioning block (4) is provided with a locking end (43) on a side away from the positioning end (42), and the first positioning end (51) is buckled on the locking end (43).

13. The shelf buckle with double positioning lock buckles according to claim 1, characterized in that: The supporting slide block (2) is provided with a positioning installation groove (23); the positioning block (4) is an elastic wall integrally formed and arranged on the top wall of the positioning installation groove (23); the positioning block (4) is provided with a positioning end (42) that can be pressed against the positioning portion (3) for positioning; and the end surface of the positioning block (4) is provided with a first buckle position (50) for buckling the first positioning end (51).

14. A shelf buckle with double positioning lock buckles according to any one of claims 10 to 13, characterized in that: The supporting slide block (2) is provided with a lock buckle installation groove (26), and the lock buckle (5) is partially installed in the lock buckle installation groove (26).

15. The shelf buckle with double positioning lock buckles according to claim 1, characterized in that: The support slider (2) is provided with a positioning installation groove (23), the positioning block (4) is rotatably inserted in the positioning installation groove (23), the positioning block (4) is provided with a positioning end (42) that can be pressed against the positioning part (3) for positioning, a positioning torsion spring (31) that can press the positioning block (4) to rotate the positioning end (42) toward one side of the positioning part (3) is provided between the positioning installation groove (23) and the positioning block (4), the positioning block (4) is provided with a blocking end (32), and the support slider (2) is provided with a second buckle position (25) for the first positioning end (51) to be buckled, and when the first positioning end (51) is buckled on the second buckle position (25), the first positioning end (51) blocks the blocking end (32).

16. A shelf buckle with double positioning lock buckles according to claim 15, characterized in that: A window (33) is provided on the middle of a side wall of the support groove (21) close to the fixing plate (1); the upper end of the second positioning end (52) extends out from the window (33) to cover the opening of the support groove (21); the positioning block (4) is provided with a plug-in shaft (40) plugged into the side wall of the positioning installation groove (23); the lock buckle (5) is rotatably arranged on the plug-in shaft (40); and the positioning torsion spring (31) is sleeved on the plug-in shaft (40).

17. The shelf buckle with double positioning lock buckles according to claim 1, characterized in that: A window (33) is provided on the middle part of a side wall of the support groove (21) close to the fixing plate (1); the upper end of the second positioning end (52) extends out from the window (33) and covers the opening of the support groove (21); a positioning installation groove (23) is provided on the support slider (2); a plug-in rotating shaft (40) is provided on the positioning block (4) and is plugged into the side wall of the positioning installation groove (23); a positioning torsion spring (31) is sleeved on the plug-in rotating shaft (40) and can press the positioning block (4) to rotate the positioning end (42) toward one side of the positioning portion (3); the positioning block (4) is provided with a positioning end (42) that can be pressed against the positioning portion (3) for positioning and a third buckle position (27) for the first positioning end (51) to be buckled; and the middle part of the lock buckle (5) is rotatably arranged on the plug-in rotating shaft (40).

18. The shelf buckle with double positioning lock buckles according to claim 1, characterized in that: The side wall of the supporting sliding block (2) is provided with a positioning protrusion (30) capable of blocking the lock buckle (5) when the first positioning end (51) locks the positioning block (4), and a positioning groove for the lock buckle (5) to slide into when the first positioning end (51) rotates away from the positioning block (4) to unlock.

19. The shelf buckle with double positioning lock buckles according to claim 10, characterized in that: The positioning portion (3) is a positioning protrusion, the two ends of the positioning protrusion are connected to the fixing plate (1), and the middle part is separated from the fixing plate (1) to form a separation hole (11), the positioning end (42) is pressed against the upper end of the positioning protrusion, and the upper end of the positioning end (42) is provided with a positioning buckle platform (48) that can be buckled in the separation hole (11) located above the positioning end (42).

20. The shelf buckle with double positioning lock buckles according to claim 1, characterized in that: The positioning portion (3) is a positioning boss.

21. The shelf buckle with double positioning lock buckles according to claim 1, characterized in that: The positioning portion (3) is a positioning hole.

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