Automatic opening and closing device of tool storage drawer

Abstract

The invention provides an automatic opening and closing device for a tool storage drawer, and belongs to the field of aircraft process equipment manufacturing, and the automatic opening and closing device comprises a mounting shell, an ejector rod, a hook, a lock catch, a sliding block, a spring, a rotating rod and a guide rod. The sliding block is fixedly connected with the ejector rod and provided with a compression spring, the top face of the sliding block is provided with a first V-shaped groove, a second V-shaped groove and a communicating groove which are communicated, and the hook is matched with the inclined sliding groove of the sliding block through the sliding rod. The sliding block can be driven to slide by pressing the drawer, automatic buckling or separation of the hook and the lock catch is achieved through sliding fit of the V-shaped groove and the guide rod and lifting transmission of the sliding groove and the sliding rod, and rapid opening and stable locking of the drawer are achieved. The device simplifies operation, avoids confusion and loss of tool positioning pieces, improves the storage and taking efficiency, and guarantees smooth development of aircraft assembly work.

Description

Technical Field

[0001] This application relates to the field of aircraft process equipment manufacturing, and in particular to an automatic opening and closing device for a tooling storage drawer. Background Technology

[0002] Due to the complexity of aircraft structures and the large number of parts requiring positioning, various types of assembly tooling are used during aircraft assembly. This results in a large number of tooling positioning components. Current methods for storing these components mostly rely on ordinary racks or drawers without automatic locking mechanisms. These require manual unlocking and locking, a cumbersome process with unreliable locking mechanisms. This not only leads to low efficiency in material handling for operators but also increases the risk of misalignment and loss of positioning components due to drawers not closing securely, thus interrupting the aircraft assembly process and affecting assembly efficiency and quality. This approach fails to meet the needs for convenient, stable, and efficient tooling storage. Summary of the Invention

[0003] In view of this, this application provides an automatic opening and closing device for a tooling storage drawer, which solves the problems in the prior art, improves storage and retrieval efficiency, and ensures the smooth progress of aircraft assembly work.

[0004] The automatic opening and closing device for a tooling storage drawer provided in this application adopts the following technical solution: An automatic opening and closing device for a tooling storage drawer includes a mounting housing, a top rod, a hook, and a latch; The mounting shell is fixed to the drawer mounting frame. A slider is provided inside the mounting shell. The sliding direction of the slider is parallel to the drawer pulling direction. One end of the slider is fixedly connected to the top rod. The other end of the top rod extends out of the mounting shell to abut against the back of the drawer. A spring is provided between the slider and the side panel of the mounting shell away from the drawer. The spring is in a compressed state. The latch is installed on the bottom plate of the drawer on the side near the mounting shell; The hook is located below the mounting shell. The first end of the hook is connected to the mounting shell via a connecting rod. The second end of the hook is a hook-on end that engages with the latch. The first end of the hook and the connecting rod are hinged. A sliding rod is provided on the end of the hook near the second end. A connecting plate is provided at the bottom of the slider. A sliding groove is provided on the connecting plate. The sliding rod slides in the sliding groove. The sliding groove extends along the drawer pull-out direction and is inclined. The height of the sliding groove gradually decreases from the outer side panel to the inner side panel of the drawer. The sliding of the slider causes the connecting plate to slide along the drawer pull-out direction. The sliding groove on the connecting plate slides relative to the sliding rod along the drawer pull-out direction. The sliding of the sliding groove on the connecting plate causes the sliding rod to rise and fall, thereby causing the hook-on end of the hook to rise and fall. The top surface of the slider is provided with a first V-shaped groove and a second V-shaped groove that are spaced apart. The first V-shaped groove and the second V-shaped groove are distributed sequentially along the drawer's pull-out direction. The first V-shaped groove is closer to the drawer than the second V-shaped groove. The V-shaped openings of the first V-shaped groove and the second V-shaped groove face the outer side panel of the drawer. The width of the V-shaped opening of the first V-shaped groove is greater than the width of the V-shaped opening of the second V-shaped groove. The first end of the first V-shaped groove and the first end of the second V-shaped groove are connected by a first connecting groove. The second end of the first V-shaped groove and the second end of the second V-shaped groove are connected by a second connecting groove. The top of the mounting shell is provided with a rotating rod. One end of the rotating rod is rotatably connected to the side panel of the mounting shell away from the drawer. The other end of the rotating rod is provided with a guide rod. The bottom end of the guide rod slides in the first V-groove, the second V-groove, the first connecting groove, and the second connecting groove. Wherein, the tip of the first V-shaped groove near the side wall of the drawer is closer to the second end of the first V-shaped groove than the tip of the first V-shaped groove away from the side wall of the drawer, and the tip of the second V-shaped groove near the side wall of the drawer is closer to the first end of the second V-shaped groove than the tip of the second V-shaped groove away from the side wall of the drawer. When the drawer is closed, the guide rod is located at the tip of the first V-shaped groove, and the slide rod is located at the end of the slide groove closest to the drawer, and the hook end is engaged with the latch; When the drawer is open, the guide rod is located at the tip of the second V-shaped groove, and the slide bar is located at the end of the slide groove away from the drawer, and the hook end is separated from the latch.

[0005] Optionally, the guide rod is a cylindrical rod, and the tip of the first V-groove away from the drawer side wall is a first arc surface that mates with the outer circumferential surface of the guide rod. The tip of the first V-groove near the drawer side wall is closer to the second end of the first V-groove than the center of the arc length of the first arc surface.

[0006] Optionally, the tip of the second V-groove away from the drawer's side wall is a second arc surface that mates with the outer circumferential surface of the guide rod, and the tip of the second V-groove near the drawer's side wall is closer to the first end of the second V-groove than the center of the arc length of the second arc surface.

[0007] Optionally, when the guide rod abuts against the first end of the first V-shaped groove and the first corner of the first connecting groove near the drawer, the axis of the guide rod is located on the side of the first corner away from the drawer and opposite to the tip of the first V-shaped groove.

[0008] Optionally, when the guide rod abuts against the second end of the first V-shaped groove and the second corner of the first connecting groove near the drawer, the axis of the guide rod is located on the side of the second corner away from the drawer and towards the tip of the first V-shaped groove.

[0009] Optionally, the hook includes a main rod, a support rod, and a hanging rod. One end of the main rod is hinged to the connecting rod. The hinge axis of the main rod is set in the horizontal direction and perpendicular to the sliding direction of the slider. The other end of the main rod is connected to the hanging rod, which serves as the hooking end. One end of the support rod is connected to one end of the connecting rod of the main rod. The other end of the support rod is equipped with the sliding rod. The line connecting the point of the support rod connecting the sliding rod and the hinge axis of the main rod is the first connecting line. The angle between the first connecting line and the line connecting the two ends of the main rod is less than 90°.

[0010] In summary, this application includes the following beneficial technical effects: The automatic opening and closing device for the tooling storage drawer of this application realizes the rapid opening and automatic locking of the drawer by pressing the drawer, thereby improving the efficiency of opening and locking the drawer in the closed state, and thus improving the efficiency of material storage and retrieval. Attached Figure Description

[0011] To more clearly illustrate the technical solutions of the embodiments of this application, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0012] Figure 1 This is a schematic diagram of the automatic switch device for the drawer closed state in this application; Figure 2 This is a schematic diagram of the automatic switch device for the drawer opening state in this application; Figure 3 This is a schematic diagram of the automatic switching device of this application; Figure 4 This is a schematic diagram of the connection structure between the hook and the mounting shell in this application; Figure 5 This is a schematic diagram of the slider structure of this application; Figure 6 This is a schematic diagram of the hook structure in this application.

[0013] Explanation of reference numerals in the attached drawings: 1. Mounting housing; 11. Connecting rod; 2. Top rod; 3. Hook; 31. Main rod; 32. Support rod; 33. Hanging rod; 4. Lock; 5. Slider; 51. First V-groove; 52. Second V-groove; 53. First connecting groove; 54. Second connecting groove; 6. Spring; 7. Connecting plate; 71. Slide groove; 72. Slide rod; 8. Rotating rod; 81. Guide rod; 9. Drawer. Detailed Implementation

[0014] The embodiments of this application will now be described in detail with reference to the accompanying drawings.

[0015] The following specific examples illustrate the implementation of this application. Those skilled in the art can easily understand other advantages and effects of this application from the content disclosed in this specification. Obviously, the described embodiments are only a part of the embodiments of this application, and not all of them. This application can also be implemented or applied through other different specific embodiments, and the details in this specification can also be modified or changed based on different viewpoints and applications without departing from the spirit of this application. It should be noted that, in the absence of conflict, the following embodiments and features in the embodiments can be combined with each other. Based on the embodiments in this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.

[0016] It should be noted that various aspects of embodiments within the scope of the appended claims are described below. It will be apparent that the aspects described herein can be embodied in a wide variety of forms, and any particular structure and / or function described herein is merely illustrative. Based on this application, those skilled in the art will understand that one aspect described herein can be implemented independently of any other aspect, and two or more of these aspects can be combined in various ways. For example, any number of aspects set forth herein can be used to implement the device and / or practice the method. Additionally, this device and / or method can be implemented using structures and / or functionalities other than one or more of the aspects set forth herein.

[0017] It should also be noted that the illustrations provided in the following embodiments are only schematic representations of the basic concept of this application. The illustrations only show the components related to this application and are not drawn according to the number, shape and size of the components in actual implementation. In actual implementation, the form, quantity and proportion of each component can be arbitrarily changed, and the layout of the components may also be more complex.

[0018] Furthermore, specific details are provided in the following description to facilitate a thorough understanding of the examples. However, those skilled in the art will understand that the described aspects can be practiced without these specific details.

[0019] This application provides an automatic opening and closing device for a tooling storage drawer.

[0020] like Figures 1 to 5 As shown, an automatic opening and closing device for a tooling storage drawer includes a mounting shell 1, a top rod 2, a hook 3, and a latch 4.

[0021] Mounting shell 1 is located between the inner side panel of drawer 9 and the solid rear side panel. Mounting shell 1 is fixed to the rear side panel of the drawer 9 mounting frame. A slider 5 is provided inside the mounting shell 1. The sliding direction of the slider 5 is parallel to the pulling direction of drawer 9. One end of the slider 5 is fixedly connected to the top rod 2. The other end of the top rod 2 extends out of the mounting shell 1 to abut against the back of drawer 9. A spring 6 is provided between the slider 5 and the side panel of the mounting shell 1 away from drawer 9. The spring 6 is in a compressed state.

[0022] The latch 4 is installed on the bottom plate of drawer 9 on the side close to the mounting shell 1. The latch 4 is a right-angle bend rod, with the horizontal end fixed to the bottom plate of drawer 9 and the vertical section facing downward. The hook 3 is located below the mounting shell 1. The first end of the hook 3 is connected to the mounting shell 1 via a connecting rod 11, and the second end of the hook 3 is a hook-on end that engages with the latch 4. The hook-on end and the vertical section cooperate to form a latch. The first end of the hook 3 is hinged to the connecting rod 11. A sliding rod 72 is provided on the end of the hook 3 near the second end. A connecting plate 7 is provided at the bottom of the slider 5. A through groove is provided on the bottom wall of the mounting shell 1 for the connecting plate 7 to pass through and slide. A sliding groove 71 is provided on the connecting plate 7. The sliding rod 72 slides in the sliding groove 71. The sliding groove 71 extends along the drawer 9's pull-out direction and is inclined. The height of the sliding groove 71 gradually decreases from the outer side panel to the inner side panel of the drawer 9. Figure 4 In the middle, the slide groove 71 is lower on the left and higher on the right; the slider 5 slides and drives the connecting plate 7 to slide along the drawer 9 in the direction of pulling out. The slide groove 71 on the connecting plate 7 slides relative to the slide rod 72 in the direction of pulling out of the drawer 9. The sliding of the slide groove 71 on the connecting plate 7 drives the slide rod 72 to rise and fall, which in turn drives the hook end of the hook 3 to rise and fall. The hook end and the slide rod 72 rise and fall synchronously and in the same direction.

[0023] The top surface of the slider 5 is provided with a first V-shaped groove 51 and a second V-shaped groove 52 spaced apart. The first V-shaped groove 51 and the second V-shaped groove 52 are distributed sequentially along the pull-out direction of the drawer 9. The first V-shaped groove 51 is closer to the drawer 9 than the second V-shaped groove 52. The V-shaped openings of the first V-shaped groove 51 and the second V-shaped groove 52 face the outer side panel of the drawer 9. The width of the V-shaped opening of the first V-shaped groove 51 is greater than that of the V-shaped opening of the second V-shaped groove 52. The first end of the first V-shaped groove 51 and the first end of the second V-shaped groove 52 are connected by a first connecting groove 53. The second end of the first V-shaped groove 51 and the second end of the second V-shaped groove 52 are connected by a second connecting groove 54. The first connecting groove 53 and the second connecting groove 54 gradually approach the first V-shaped groove 51 from the second V-shaped groove 52.

[0024] The top of the mounting shell 1 is provided with a rotating rod 8. One end of the rotating rod 8 is rotatably connected to the side plate of the mounting shell 1 away from the drawer 9. The other end of the rotating rod 8 is provided with a guide rod 81. The bottom end of the guide rod 81 slides in the first V-groove 51, the second V-groove 52, the first connecting groove 53 and the second connecting groove 54.

[0025] Specifically, the tip of the first V-groove 51 near the side wall of the drawer 9 is closer to the second end of the first V-groove 51 than the tip of the first V-groove 51 away from the side wall of the drawer 9, making it easier for the guide rod 81 to move towards the first end of the first V-groove 51 when it is at the tip position; the tip of the second V-groove 52 near the side wall of the drawer 9 is closer to the first end of the second V-groove 52 than the tip of the second V-groove 52 away from the side wall of the drawer 9, making it easier for the guide rod 81 to move towards the second end of the second V-groove 52 when it is at the tip position.

[0026] When drawer 9 is closed, the guide rod 81 is located at the tip of the first V-groove 51, and the slide rod 72 is located at the end of the slide groove 71 near drawer 9, and the hook end of the hook 3 is engaged with the latch 4; when drawer 9 is open, the guide rod 81 is located at the tip of the second V-groove 52, and the slide rod 72 is located at the end of the slide groove 71 away from drawer 9, and the hook end of the hook 3 is disengaged from the latch 4.

[0027] When drawer 9 is closed and needs to be opened, a person pushes drawer 9 from the outside in. The inside of drawer 9 presses the top rod 2, causing slider 5 to move away from drawer 9. Slide rod 72 rises, spring 6 is compressed, and guide rod 81 moves to the first end of the first V-groove 51. Under the restriction of guide rod 81 and the first V-groove 51, slider 5 and top rod 2 cannot move further, and the external pushing force is removed. Under the elastic force of spring 6, slider 5 moves towards drawer 9, and slide rod 72 moves away from drawer 9 relative to slide groove 71. Slide rod 72 lowers, hook end of hook 3 lowers, hook end of hook 3 separates from lock 4, until guide rod 81 moves along the first connecting groove 53 into the second V-groove 52 and moves to the tip of the second V-groove 52. During this process, top rod 2 applies an outward pushing force to drawer 9 under the action of spring 6, causing drawer 9 to open.

[0028] When drawer 9 needs to be closed, push drawer 9 from the outside inwards while it is open. Drawer 9 presses the top rod 2, causing slider 5 to move to the side opposite to drawer 9. Guide rod 81 moves from the tip of the second V-groove 52 to the second end of the second V-groove 52 and passes through the second connecting groove 54 to the second end of the first V-groove 51. Top rod 2 reaches the maximum range of being pressed by drawer 9. At the same time, slide rod 72 moves to the side of slide groove 71 facing drawer 9 and rises. The hook end of hook 3 rises into the position of engaging with latch 4. Remove the external pushing force on drawer 9. Under the action of spring 6, slider 5 moves towards drawer 9. Guide rod 81 moves from the second end of the first V-groove 51 to the tip of the first V-groove 51. Hook end of hook 3 slightly lowers, still in the state of engaging with latch 4.

[0029] The automatic opening and closing device for the tooling storage drawer of this application realizes the rapid opening and automatic locking of the drawer 9 by pressing the drawer 9, thereby improving the efficiency of opening and locking the drawer 9 in the closed state, and thus improving the efficiency of material storage and retrieval.

[0030] The guide rod 81 is a cylindrical rod. The tip of the first V-groove 51 away from the drawer 9 is a first arc surface that mates with the outer circumferential surface of the guide rod 81. The tip of the first V-groove 51 near the drawer 9 is closer to the second end of the first V-groove 51 than the center of the arc length of the first arc surface. When the drawer 9 needs to be opened, after pressing the top rod 2, the movement of the slider 5, further facilitates the guide rod 81's movement towards the first end of the first V-groove 51 when it is at the tip position.

[0031] The tip of the second V-groove 52 away from the side wall of drawer 9 is a second arc surface that mates with the outer circumferential surface of guide rod 81. The tip of the second V-groove 52 near the side wall of drawer 9 is closer to the first end of the second V-groove 52 than the center of the arc length of the second arc surface. When drawer 9 needs to be closed, after pressing the top rod 2, the movement of slider 5, with the arrangement of the second arc surface, makes it easier for guide rod 81 to move towards the second end of the second V-groove 52 when it is at the tip position.

[0032] When the guide rod 81 abuts against the first corner of the first end of the first V-shaped groove 51 and the first connecting groove 53 near the drawer 9, the axis of the guide rod 81 is located on the side of the first corner away from the drawer 9, opposite to the tip of the first V-shaped groove 51. When the guide rod 81 reaches the first end of the first V-shaped groove 51, the spring 6 makes it easier for the guide rod 81 to enter the first connecting groove 53.

[0033] When the guide rod 81 abuts against the second corner of the first V-groove 51 and the first connecting groove 53 near the drawer 9, the axis of the guide rod 81 is located on the side of the second corner away from the drawer 9 and towards the tip of the first V-groove 51. When the guide rod 81 reaches the second end of the first V-groove 51, the spring 6 makes it easier for the guide rod 81 to enter the first V-groove 51.

[0034] like Figure 4 and Figure 6 As shown, the hook 3 includes a main rod 31, a support rod 32, and a hanging rod 33. One end of the main rod 31 is hinged to the connecting rod 11. The hinge axis of the main rod 31 is set horizontally and perpendicular to the sliding direction of the slider 5. The other end of the main rod 31 is connected to the hanging rod 33, which serves as the hooking end. One end of the support rod 32 is connected to one end of the connecting rod 11 of the main rod 31. The other end of the support rod 32 is fitted with the slide rod 72. The line connecting the point where the support rod 32 connects to the slide rod 72 and the hinge axis of the main rod 31 is the first connecting line. The angle between the first connecting line and the line connecting the two ends of the main rod 31 is less than 90°. The support rod 32 extends obliquely from the hinge end of the main rod 31 toward the hanging rod 33, so that the raising and lowering of the slide rod 72 at the end of the support rod 32 away from the main rod 31 and the raising and lowering of the hanging rod 33 are synchronized and in the same direction.

[0035] In this embodiment, the connecting rod 11 consists of two parallel strip-shaped structures. One end of each parallel strip-shaped structure is connected to the mounting shell 1, and the other end extends to the bottom of the connecting plate 7. The connecting plate 7 is located between the two parallel strip-shaped structures, and the bottom ends of the two parallel strip-shaped structures are hinged to the main rod 31.

[0036] The above description is merely a specific embodiment of this application, but the scope of protection of this application is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the technical scope disclosed in this application should be included within the scope of protection of this application. Therefore, the scope of protection of this application should be determined by the scope of the claims.

Claims

1. An automatic opening and closing device for a storage drawer of a tool, characterized by, It comprises a mounting shell (1), a top rod (2), a hook (3) and a lock catch (4); The mounting shell (1) is fixed on a drawer (9) mounting framework, a sliding block (5) is arranged in the mounting shell (1), the sliding direction of the sliding block (5) is parallel to the drawer (9) pulling direction, one end of the sliding block (5) and the top rod (2) are fixedly connected, the other end of the top rod (2) extends out of the mounting shell (1) and is used for abutting with the back of the drawer (9), a spring (6) is arranged between the sliding block (5) and the side plate of the mounting shell (1) away from the drawer (9), and the spring (6) is in a compressed state; The lock catch (4) is arranged on the bottom plate of the drawer (9) near one side of the mounting shell (1); The hook (3) is located below the mounting shell (1), the first end of the hook (3) is connected with the mounting shell (1) through a connecting rod (11), the second end of the hook (3) is a hooking end matched with the lock catch (4), the first end of the hook (3) is hinged with the connecting rod (11), a sliding rod (72) is arranged on the end portion of the hook (3) close to the second end, a connecting plate (7) is arranged on the bottom of the sliding block (5), a sliding groove (71) is arranged on the connecting plate (7), the sliding rod (72) slides in the sliding groove (71), the sliding groove (71) extends along the drawer (9) pulling direction, the sliding groove (71) is arranged obliquely, the height of the sliding groove (71) gradually decreases along the drawer (9) from the outer side panel to the inner side panel, the sliding block (5) drives the connecting plate (7) to slide along the drawer (9) pulling direction, the sliding groove (71) on the connecting plate (7) slides along the drawer (9) pulling direction relative to the sliding rod (72), the sliding groove (71) on the connecting plate (7) drives the sliding rod (72) to ascend and descend, and drives the hooking end of the hook (3) to ascend and descend; First V-shaped grooves (51) and second V-shaped grooves (52) are arranged on the top surface of the sliding block (5) and are distributed at intervals, the first V-shaped grooves (51) and the second V-shaped grooves (52) are sequentially distributed along the drawer (9) pulling direction, the first V-shaped grooves (51) are closer to the drawer (9) than the second V-shaped grooves (52), the V-shaped openings of the first V-shaped grooves (51) and the second V-shaped grooves (52) face the outer side panel of the drawer (9), the V-shaped opening width of the first V-shaped grooves (51) is greater than that of the second V-shaped grooves (52), the first end of the first V-shaped grooves (51) and the first end portion of the second V-shaped grooves (52) are communicated through a first communication groove (53), and the second end of the first V-shaped grooves (51) and the second end portion of the second V-shaped grooves (52) are communicated through a second communication groove (54); A rotating rod (8) is arranged on the top of the mounting shell (1), one end of the rotating rod (8) is rotatably connected with the side plate of the mounting shell (1) away from the drawer (9), the other end of the rotating rod (8) is provided with a guide rod (81), and the bottom end of the guide rod (81) slides in the first V-shaped groove (51), the second V-shaped groove (52), the first communication groove (53) and the second communication groove (54). The tip of the first V-shaped groove (51) close to the side wall of the drawer (9) is closer to the second end of the first V-shaped groove (51) than the tip of the first V-shaped groove (51) away from the side wall of the drawer (9); the tip of the second V-shaped groove (52) close to the side wall of the drawer (9) is closer to the first end of the second V-shaped groove (52) than the tip of the second V-shaped groove (52) away from the side wall of the drawer (9). When the drawer (9) is in the closed state, the guide rod (81) is located at the tip of the first V-shaped groove (51), and the sliding rod (72) is located at one end of the sliding groove (71) close to the drawer (9), and the hooking end of the hook (3) is buckled with the lock catch (4). When the drawer (9) is in the open state, the guide rod (81) is located at the tip of the second V-shaped groove (52), and the sliding rod (72) is located at one end of the sliding groove (71) away from the drawer (9), and the hooking end of the hook (3) is separated from the lock catch (4).

2. The automatic opening and closing device for a tool storage drawer according to claim 1, characterized in that, The guide rod (81) is a cylindrical rod, the tip of the first V-shaped groove (51) away from the side wall of the drawer (9) is a first circular arc surface matched with the outer peripheral surface of the guide rod (81), and the tip of the first V-shaped groove (51) close to the side wall of the drawer (9) is closer to the second end of the first V-shaped groove (51) than the center of the arc length of the first circular arc surface.

3. The automatic opening and closing device for a tool storage drawer according to claim 2, characterized in that, The tip of the second V-shaped groove (52) away from the side wall of the drawer (9) is a second circular arc surface matched with the outer peripheral surface of the guide rod (81), and the tip of the second V-shaped groove (52) close to the side wall of the drawer (9) is closer to the first end of the second V-shaped groove (52) than the center of the arc length of the second circular arc surface.

4. The automatic opening and closing device for a tool storage drawer according to claim 2, characterized in that, When the guide rod (81) abuts against the first end of the first V-shaped groove (51) and the first corner of the communication position of the first communication groove (53) close to the side of the drawer (9), the axis of the guide rod (81) is located on the side of the first corner away from the side of the drawer (9) and opposite to the side of the tip of the first V-shaped groove (51).

5. The automatic opening and closing device for a tool storage drawer according to claim 2, characterized in that, When the guide rod (81) abuts against the second end of the first V-shaped groove (51) and the second corner of the communication position of the first communication groove (53) close to the side of the drawer (9), the axis of the guide rod (81) is located on the side of the second corner away from the side of the drawer (9) and towards the side of the tip of the first V-shaped groove (51).

6. The automatic opening and closing device for a tool storage drawer according to claim 1, characterized in that, The hook (3) comprises a main rod (31), a branch rod (32) and a hanging rod (33), one end of the main rod (31) is hinged with the connecting rod (11), the hinge shaft of the main rod (31) is arranged in the horizontal direction and perpendicular to the sliding direction of the sliding block (5), the other end of the main rod (31) is connected with the hanging rod (33), the hanging rod (33) serves as the hooking end, one end of the branch rod (32) is connected with one end of the main rod (31) and the connecting rod (11), the other end of the branch rod (32) is installed with the sliding rod (72), and the line connecting the point where the branch rod (32) is connected with the sliding rod (72) and the hinge shaft of the main rod (31) is the first line, and the included angle between the first line and the line connecting the two ends of the main rod (31) is less than 90°.

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