CN213849501U - Indoor filing cabinet that uses - Google Patents

Abstract

The utility model relates to a archives storage device technical field, and an indoor filing cabinet that uses is disclosed, including the cabinet body and cabinet door, the inside of the cabinet body is provided with the rotating electrical machines, the back fixed connection of rotating electrical machines is at the back lateral wall of the internal portion of cabinet, the output fixed mounting of rotating electrical machines has the dwang, the dead ahead of dwang is provided with the flabellum board, the center department at the flabellum board back has seted up the circular slot, the flabellum board passes through the fixed surface of cup jointing at the dwang of circular slot, every flabellum dead ahead all is provided with placer on the flabellum board, through setting up the expansion plate, the connecting plate, flabellum board and archives box body, can utilize the expansion plate to fix the connecting plate, avoid at the flabellum board at the pivoted in-process, archives in the archives box body are because of rolling, thereby drop from the archives box body, the phenomenon of archives damage appears, through the expansion plate, the connecting plate, the expansion plate, the connecting plate can be used for the archives, the use, The cooperation between flabellum board and the archives box body further improves the security of archives.

Description

Indoor filing cabinet that uses

Technical Field

The utility model relates to a archives storage facilities technical field specifically is an indoor filing cabinet that uses.

Background

The file cabinet belongs to office furniture system, namely a cabinet for storing file data; is a relatively traditional harness for preserving files, which is usually a case with a cover and a cabinet with a door. Generally made of wood or metal, or made into combined type, separated into boxes and stacked into a cabinet. The novel file cabinet has the advantages that the novel file cabinet can effectively prevent dust and other harmful substances from invading, is more diversified in form, but more files are searched by means of manual marking and management in the file searching process, the screening process is complex, the taking process is slow, and the working efficiency is reduced.

SUMMERY OF THE UTILITY MODEL

Technical problem to be solved

Not enough to prior art, the utility model provides an indoor filing cabinet that uses possesses advantages such as the security that improves work efficiency, improves archives, has solved at the in-process screening process of looking for archives loaded down with trivial details, the slow problem of process of taking.

(II) technical scheme

In order to achieve the above background purpose, the present invention provides the following technical solutions: an indoor file cabinet comprises a cabinet body and a cabinet door, wherein a baffle plate is arranged inside the cabinet body, four sides of the baffle plate are respectively fixedly connected with the inner side wall inside the cabinet body, the baffle plate is positioned at the front half part inside the cabinet body, a diamond-shaped groove is arranged at the lower side of the front side of the baffle plate, a rotating motor is arranged inside the cabinet body, the back side of the rotating motor is fixedly connected with the rear side wall inside the cabinet body, the rotating motor is positioned at the center of the inside of the cabinet body, a rotating rod is fixedly arranged at the output end of the rotating motor, a leaf plate is arranged right ahead of the rotating rod, a circular groove is arranged at the center of the back side of the leaf plate, the leaf plates are fixedly connected on the surface of the rotating rod through the circular grooves, the leaf plates are positioned behind the baffle plate, a placing device is arranged right ahead of each leaf on each leaf plate, the placing device is positioned at one side of the leaf plate, which is positioned at the front side of the leaf plate and far away from the center of the leaf plate, each placing device is arranged at different angles by taking the fan blade plate as the center.

Preferably, every placer all includes the support diaphragm, and the back fixed mounting that supports the diaphragm is in the front of flabellum on the flabellum board, and the movable groove has been seted up to the top surface that supports the diaphragm, and the movable groove is L style of calligraphy shape, and the spout has all been seted up to the lateral wall about the movable inslot portion, and the inside in movable groove is provided with the archives box body, and the top surface of archives box body is the box body of a fretwork, the equal fixed mounting in both sides has the connecting block around the archives box body bottom surface, the equal fixed mounting in the left and right sides of every connecting block has the slider, the surface of slider and the inside wall sliding connection of spout.

Preferably, the front side fixed mounting of archives box body top surface has the limiting plate, the spacing short slab of front side fixed mounting of archives box body top surface, spacing short slab is located the rear of limiting plate, the upside fixed mounting at the limiting plate back has the expansion plate, the bottom surface of expansion plate and the front side of connecting plate top surface laminate mutually, be provided with the bearing spring between limiting plate and the spacing short slab, the lower extreme fixed mounting of bearing spring is in the front side of archives box body top surface, the top of bearing spring is provided with triggers the board, the top surface fixed mounting that triggers the board is in the front side of connecting plate bottom surface, the position that triggers the board is corresponding with the position of bearing spring.

Preferably, the front side fixed mounting of archives box body top surface has the limiting plate, the spacing short slab of front side fixed mounting of archives box body top surface, spacing short slab is located the rear of limiting plate, the upside fixed mounting at the limiting plate back has the expansion plate, the bottom surface of expansion plate and the front side of connecting plate top surface laminate mutually, be provided with the bearing spring between limiting plate and the spacing short slab, the lower extreme fixed mounting of bearing spring is in the front side of archives box body top surface, the top of bearing spring is provided with triggers the board, the top surface fixed mounting that triggers the board is in the front side of connecting plate bottom surface, the position that triggers the board is corresponding with the position of bearing spring.

Preferably, the square groove has been seted up to the upside on archives box body right side, and the square groove is located the front side of archives box body top surface, and the inside of square groove is provided with reset spring, and reset spring's front end fixed mounting is at the inside preceding lateral wall of square groove, and reset spring's rear end fixed mounting has three hornblocks, and the inclined plane of three hornblocks is located the one side of keeping away from the reset spring rear end.

Preferably, the top on three hornblocks inclined plane is provided with the trapezoidal piece, and the inclined plane of trapezoidal piece is laminated mutually with the inclined plane of three hornblocks towards the inclined plane of three hornblocks on the inclined plane of triangular piece, the back fixed mounting of trapezoidal piece has the connecting rod, and the connecting rod is located the rear of square groove, and the top surface fixed mounting of connecting rod is in the front side of connecting plate bottom surface.

Preferably, the spread groove has been seted up to the bottom surface of square groove inside, the spread groove is similar arc shape, the one end of spread groove communicates with the inner space of square groove each other, the other end of spread groove is linked together with the top surface of archives box body, the inside of spread groove is provided with the trigger bar, the shape of trigger bar and the shape looks adaptation of spread groove, the one end of trigger bar is located the top of archives box body top surface, the other end fixed mounting of trigger bar has three blocks, three blocks are the triangle-shaped form, the inclined plane of three blocks is unanimous with the facing of three blocks inclined plane, the part outer wall of three blocks is located the inside of square groove, the top of three blocks is provided with the bracing piece, the bracing piece is the inclined plane towards one side of three blocks, the inclined plane of bracing piece is located the lower extreme of bracing piece, the inclined plane of bracing piece is laminated with the inclined plane of three blocks, the top surface fixed mounting of bracing piece is in the bottom surface of three blocks.

Preferably, the outer wall of the trigger lever has been seted up the spacing groove, and the spacing groove sets up in the inside of spread groove, and the spacing groove is located the crossing department of spread groove vertical end and horizontal end, and the axis of rotation is cup jointed in the inside activity of spacing groove, and both ends are fixed mounting respectively about the spread groove inside lateral wall at the axis of rotation.

(III) advantageous effects

Compared with the prior art, the utility model provides an indoor filing cabinet that uses possesses following beneficial effect:

1. the file cabinet for indoor use is characterized in that files are prepared to be taken out by opening a cabinet door, a rotating motor is started to rotate to drive a leaf plate to rotate by three hundred and sixty degrees, when a placing device on a certain leaf on the leaf plate corresponds to a diamond-shaped groove, the rotating motor is stopped to rotate, a file box body slides in a sliding groove through a sliding block, the file box body is pulled forwards, a worker contacts a hand with the top surface of a connecting plate through the diamond-shaped groove and pulls a telescopic plate towards the top surface, then the worker presses the front side of the top surface of the connecting plate through the hand, when the connecting plate is pressed downwards, the connecting plate presses a bearing spring through a trigger plate, and applies acting force to a triangular block through a connecting rod when the connecting plate is pressed, the triangular block is compressed towards the square groove through a reset spring, and in the compression process of the triangular block, the supporting rod on the triangular block applies acting force to the three blocks, the one end anticlockwise rotation that the axis of rotation on the three-sided piece passed through the trigger bar made the trigger bar, the one end of trigger bar is when anticlockwise rotation, the other end of trigger bar withstands the bottom surface of connecting plate and upwards lifts up the connecting plate, the connecting plate utilizes the bounce of load spring to bounce the connecting plate through articulated seat, the archives box body that will store archives is opened, with the trigger bar center, take out the archives of the inside left and right sides of archives box body, put back the inside of the cabinet body with the archives box body according to opposite theory of operation, perhaps utilize opposite theory of operation to put into the inside of archives box body with archives, put the inside of the cabinet body, can be quick filter and take out archives, and is simple in operation, and the work efficiency is effectively improved.

2. This filing cabinet of indoor use, through setting up expansion plate, connecting plate, flabellum board and archives box body, can utilize the expansion plate to fix the connecting plate, avoid at the flabellum board at the pivoted in-process, archives in the archives box body are because roll to drop in the archives box body from, the phenomenon of archives damage appears, through the cooperation between expansion plate, connecting plate, flabellum board and the archives box body, further improve the security of archives.

3. The file cabinet for indoor use presses the bearing spring through the connecting plate and the trigger plate, and acting force is applied to the triangular block through the connecting rod while the connecting plate is pressed, the triangular block is compressed into the square groove through the return spring, in the process of compressing the triangular block, the supporting rod on the triangular block applies acting force to the three-side block, the three-side block enables one end of the trigger rod to rotate anticlockwise through the rotating shaft on the trigger rod, when one end of the trigger rod rotates anticlockwise, the other end of the trigger rod props against the bottom surface of the connecting plate and lifts the connecting plate upwards, the connecting plate utilizes the rebound force of the bearing spring to bounce through the hinge seat to open the file box body for storing the files, can be quick through this motion mode open and take out the archives box body, can be quick filter and take out archives, further improve work efficiency.

Drawings

FIG. 1 is a front view of the present invention;

FIG. 2 is a schematic front sectional view of the present invention;

FIG. 3 is a schematic view of the placement device of FIG. 2 according to the present invention;

fig. 4 is a schematic view of a partial enlarged structure at a in fig. 2 according to the present invention;

fig. 5 is a schematic view of a partial enlarged structure at B in fig. 3 according to the present invention;

fig. 6 is a schematic view of a partial enlarged structure at C in fig. 3 according to the present invention;

fig. 7 is a schematic view of a partial enlarged structure at D in fig. 3 according to the present invention;

FIG. 8 is a schematic view of the structure of the blocking plate of FIG. 1 according to the present invention;

fig. 9 is a schematic structural view of the rotating electric machine of fig. 1 according to the present invention;

fig. 10 is a schematic view of the cross support plate of fig. 2 according to the present invention;

fig. 11 is a schematic structural view of the document box of fig. 2 according to the present invention.

In the figure: 1. a cabinet body; 2. a cabinet door; 3. a blocking plate; 4. a diamond-shaped groove; 5. a rotating electric machine; 6. rotating the rod; 7. a leaf plate; 8. a circular groove; 9. a placement device; 901. supporting the transverse plate; 902. a movable groove; 903. a chute; 904. a file box body; 905. connecting blocks; 906. a slider; 907. a vertical plate; 908. a hinged seat; 909. a connecting plate; 910. a limiting plate; 911. a short limiting plate; 912. a retractable plate; 913. a force bearing spring; 914. a trigger plate; 915. a square groove; 916. a return spring; 917. a triangular block; 918. a trapezoidal block; 919. a connecting rod; 920. connecting grooves; 921. a trigger lever; 922. three-sided block; 923. a support bar; 924. a limiting groove; 925. and rotating the shaft.

Detailed Description

The present invention will be described in further detail with reference to the drawings, wherein like elements are designated by like reference numerals, wherein the terms "front", "rear", "left", "right", "upper" and "lower", "bottom" and "top" used in the following description refer to the orientation in the drawings, and the terms "inner" and "outer" refer to the orientation toward or away from the geometric center of a particular element, respectively.

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Referring to fig. 1-11, the present invention provides a technical solution: an indoor file cabinet comprises a cabinet body 1 and a cabinet door 2, wherein a baffle plate 3 is arranged inside the cabinet body 1, four sides of the baffle plate 3 are respectively fixedly connected with the inner side wall inside the cabinet body 1, the baffle plate 3 is positioned at the front half part inside the cabinet body 1, a diamond-shaped groove 4 is arranged at the lower side of the front side of the baffle plate 3, a rotating motor 5 is arranged inside the cabinet body 1, the back side of the rotating motor 5 is fixedly connected with the rear side wall inside the cabinet body 1, the rotating motor 5 is positioned at the center inside the cabinet body 1, a rotating rod 6 is fixedly installed at the output end of the rotating motor 5, a fan blade plate 7 is arranged right ahead of the rotating rod 6, a circular groove 8 is arranged at the center of the back side of the fan blade plate 7, the fan blade plate 7 is fixedly sleeved on the surface of the rotating rod 6 through the circular groove 8, the fan blade plate 7 is positioned at the rear side of the baffle plate 3, a placing device 9 is arranged right ahead of each fan blade on the fan blade plate 7, the placing devices 9 are positioned on the fan blade plate 7 on one side of the front face of the fan blade far away from the center of the fan blade plate 7, and each placing device 9 is arranged at different angles by taking the fan blade plate 7 as the center.

Every placer 9 all includes support diaphragm 901, the front of flabellum on flabellum board 7 is fixed mounting in the back of support diaphragm 901, movable groove 902 has been seted up to the top surface of support diaphragm 901, movable groove 902 is L style of calligraphy shape, spout 903 has all been seted up to the inside left and right sides lateral wall in movable groove 902, the inside in movable groove 902 is provided with archives box body 904, the top surface of archives box body 904 is the box body of a fretwork (as shown in fig. 11), the equal fixed mounting in both sides has connecting block 905 around the archives box body 904 bottom surface, the equal fixed mounting in both sides has slider 906 about every connecting block 905, the surface of slider 906 and the inside wall sliding connection of spout 903.

The rear side of the top surface of the file box body 904 is fixedly provided with a vertical plate 907, the width of the vertical plate 907 is equal to that of the file box body 904, the file box body 904 forms a box body shape through the vertical plate 907, the upper side of the front surface of the vertical plate 907 is fixedly provided with a hinged seat 908, a connecting plate 909 is arranged right in front of the hinged seat 908, the rear end of the connecting plate 909 is hinged on the hinged seat 908, and the front side of the bottom surface of the connecting plate 909 is positioned at the front side of the top surface of the file box body 904.

The front side fixed mounting of the top surface of the archive box body 904 has a limiting plate 910, the front side fixed mounting of the top surface of the archive box body 904 has a limiting short plate 911, the limiting short plate 911 is located behind the limiting plate 910, the upside fixed mounting at the back of the limiting plate 910 has a retractable plate 912, the bottom surface of the retractable plate 912 is attached to the front side of the top surface of the connecting plate 909, a force bearing spring 913 is arranged between the limiting plate 910 and the limiting short plate 911, the lower end fixed mounting of the force bearing spring 913 is at the front side of the top surface of the archive box body 904, the top of the force bearing spring 913 is provided with a trigger plate 914, the top surface fixed mounting of the trigger plate 914 is at the front side of the bottom surface of the connecting plate 909, and the position of the trigger plate 914 corresponds to the position of the force bearing spring 913.

A square groove 915 is formed in the upper side of the right side of the file box body 904, the square groove 915 is located in the front side of the top surface of the file box body 904, a reset spring 916 is arranged inside the square groove 915, the front end of the reset spring 916 is fixedly installed on the front side wall inside the square groove 915, a triangular block 917 is fixedly installed at the rear end of the reset spring 916, the inclined plane of the triangular block 917 is located in one side away from the rear end of the reset spring 916, a trapezoidal block 918 is arranged above the inclined plane of the triangular block 917, the inclined plane of the trapezoidal block 918 faces the inclined plane of the triangular block 917, the inclined plane of the trapezoidal block 918 is attached to the inclined plane of the triangular block 917, a connecting rod 919 is fixedly installed on the back of the trapezoidal block 918, the connecting rod 919 is located behind the square groove 915, and the top surface of the connecting rod 919 is fixedly installed on the front side of the bottom surface of the connecting plate 909.

The bottom surface of the inside of the square groove 915 is provided with a connecting groove 920, the connecting groove 920 is arc-like, one end of the connecting groove 920 is communicated with the inner space of the square groove 915, the other end of the connecting groove 920 is communicated with the top surface of the file box body 904, the inside of the connecting groove 920 is provided with a trigger bar 921, the shape of the trigger bar 921 is matched with the shape of the connecting groove 920 (as shown in figure 3), one end of the trigger bar 921 is positioned above the top surface of the file box body 904, the other end of the trigger bar 921 is fixedly provided with a three-edge block 922, the three-edge block 922 is triangular, the inclined plane of the three-edge block 922 is consistent with the inclined plane of the three-edge block 917, part of the outer wall of the three-edge block 922 is positioned inside the square groove 915, a support rod 923 is arranged above the three-edge block 922, the support rod 923 is inclined towards one side of the three-edge block 922, the inclined plane of the support rod 923 is positioned at the lower end of the support rod 923, the inclined plane of the support rod 923 is attached to the inclined plane of the three-edge block 922, the top surface fixed mounting of bracing piece 923 is in the bottom surface of triangle 917, and spacing groove 924 has been seted up to the outer wall of trigger bar 921, and spacing groove 924 sets up in the inside of spread groove 920, and spacing groove 924 is located the crossing department (as shown in figure 7) of the perpendicular end of spread groove 920 and horizontal end, and the axis of rotation 925 is cup jointed in the inside activity of spacing groove 924, and both ends difference fixed mounting is in the inside lateral wall of controlling of spread groove 920 about the axis of rotation 925.

When the file storage cabinet is used, in the first step, files are prepared to be taken out by opening the cabinet door 2, the rotating motor 5 is started to rotate to drive the fan blade plates 7 to rotate by three hundred and sixty degrees, when the placing device 9 on one fan blade on the fan blade plate 7 corresponds to the diamond-shaped groove 4, the rotating motor 5 is stopped to rotate, the file box body 904 slides in the sliding groove 903 through the sliding block 906, the file box body 904 is pulled forwards, a worker brings a hand into contact with the top surface of the connecting plate 909 through the diamond-shaped groove 4 and pulls the telescopic plate 912, and then the worker presses the front side of the top surface of the connecting plate 909 by hand and presses the connecting plate 909 downwards;

secondly, the connecting plate 909 presses the bearing spring 913 through the trigger plate 914, and applies an acting force to the three-side block 917 through the connecting rod 919 while the connecting plate 909 is pressed, the three-side block 917 is compressed into the square groove 915 through the return spring 916, and in the compression process of the three-side block 917, the support rod 923 on the three-side block 917 applies an acting force to the three-side block 922, the three-side block 922 rotates one end of the trigger bar 921 counterclockwise through the rotating shaft 925 on the trigger bar 921, when one end of the trigger bar 921 rotates counterclockwise, the other end of the trigger bar 921 abuts against the bottom surface of the connecting plate 909 and lifts the connecting plate 909 upward, the connecting plate 909 bounces the connecting plate 909 through the hinge base 908 by using the resilience of the bearing spring 913, the file box 904 storing the files is opened to trigger the center of the trigger bar 921, the files on the left and right sides inside the file box 904 are taken out, and the file box 904 is put back into the cabinet body 1 according to the opposite working principle, or files are put into the inside of the file box 904 and put into the cabinet 1 by using the reverse working principle.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims (6)

1. The utility model provides an indoor filing cabinet that uses, including the cabinet body (1) and cabinet door (2), its characterized in that: the cabinet is characterized in that a blocking plate (3) is arranged inside the cabinet body (1), four sides of the blocking plate (3) are respectively fixedly connected with the inner side wall inside the cabinet body (1), the blocking plate (3) is positioned at the front half part inside the cabinet body (1), a diamond-shaped groove (4) is formed in the lower side of the front side of the blocking plate (3), a rotating motor (5) is arranged inside the cabinet body (1), the back side of the rotating motor (5) is fixedly connected with the rear side wall inside the cabinet body (1), the rotating motor (5) is positioned at the center inside the cabinet body (1), a rotating rod (6) is fixedly installed at the output end of the rotating motor (5), a fan blade plate (7) is arranged right ahead of the rotating rod (6), a circular groove (8) is formed in the center of the back side of the fan blade plate (7), the fan blade plate (7) is fixedly sleeved on the surface of the fan blade plate (6) through the circular groove (8), and the fan blade plate (7) is positioned at the rear part of the blocking plate (3), the placing device (9) is arranged in front of each fan blade on the fan blade plate (7), the placing device (9) is positioned on one side, away from the center of the fan blade plate (7), of the fan blade plate (7) in front, and the placing devices (9) are arranged at different angles by taking the fan blade plate (7) as the center.

2. An indoor filing cabinet of claim 1, wherein: every placer (9) all include support diaphragm (901), the front of flabellum on support diaphragm (901) back fixed mounting is in flabellum board (7), movable groove (902) have been seted up to the top surface of support diaphragm (901), movable groove (902) are L style of calligraphy shape, spout (903) have all been seted up to the inside lateral wall of controlling in movable groove (902), the inside of movable groove (902) is provided with archives box body (904), the top surface of archives box body (904) is the box body of a fretwork, the equal fixed mounting in both sides has connecting block (905) around archives box body (904) bottom surface, the equal fixed mounting in both sides has slider (906) in the left and right sides of every connecting block (905), the inside wall sliding connection of the surface and spout (903) of slider (906).

3. An indoor filing cabinet of claim 2, wherein: the rear side fixed mounting of archives box body (904) top surface has riser (907), the width of riser (907) equals with the width of archives box body (904), archives box body (904) constitute a box body shape through riser (907), the positive upside fixed mounting of riser (907) has articulated seat (908), the dead ahead of articulated seat (908) is provided with connecting plate (909), the rear end of connecting plate (909) is articulated on articulated seat (908), the front side of connecting plate (909) bottom surface is located the front side of archives box body (904) top surface.

4. An indoor filing cabinet of claim 3, wherein: the utility model discloses a archives box body (904) top surface, the front side fixed mounting of archives box body (904) top surface has limiting plate (910), the front side fixed mounting of archives box body (904) top surface is spacing short slab (911), spacing short slab (911) are located the rear of limiting plate (910), the upside fixed mounting at the limiting plate (910) back has expansion plate (912), the bottom surface of expansion plate (912) is laminated with the front side of connecting plate (909) top surface mutually, be provided with between limiting plate (910) and spacing short slab (911) strength spring (913), the lower extreme fixed mounting of strength spring (913) is in the front side of archives box body (904) top surface, the top of strength spring (913) is provided with triggers board (914), the top fixed mounting that triggers board (914) is in the front side of connecting plate (909) bottom surface, the position that triggers board (914) and strength spring (913) are corresponding.

5. An indoor filing cabinet of claim 4, wherein: a square groove (915) is formed in the upper side of the right side of the file box body (904), the square groove (915) is located on the front side of the top surface of the file box body (904), a return spring (916) is arranged inside the square groove (915), the front end of the return spring (916) is fixedly installed on the front side wall inside the square groove (915), a triangular block (917) is fixedly installed at the rear end of the return spring (916), and the inclined plane of the triangular block (917) is located on the side far away from the rear end of the return spring (916);

the novel connecting device is characterized in that a trapezoidal block (918) is arranged above the inclined plane of the triangular block (917), the inclined plane of the trapezoidal block (918) faces the inclined plane of the triangular block (917), the inclined plane of the trapezoidal block (918) is attached to the inclined plane of the triangular block (917), a connecting rod (919) is fixedly mounted on the back face of the trapezoidal block (918), the connecting rod (919) is located behind the square groove (915), and the top face of the connecting rod (919) is fixedly mounted on the front side of the bottom face of the connecting plate (909).

6. An indoor filing cabinet of claim 5, wherein: the bottom surface of the inside of the square groove (915) is provided with a connecting groove (920), the connecting groove (920) is arc-like, one end of the connecting groove (920) is communicated with the inner space of the square groove (915), the other end of the connecting groove (920) is communicated with the top surface of the file box body (904), the inside of the connecting groove (920) is provided with a trigger lever (921), the shape of the trigger lever (921) is matched with that of the connecting groove (920), one end of the trigger lever (921) is positioned above the top surface of the file box body (904), the other end of the trigger lever (921) is fixedly provided with a three-edge block (922), the three-edge block (922) is triangular, the inclined plane of the three-edge block (922) is consistent with the inclined plane of the three-edge block (917), part of the outer wall of the three-edge block (915) is positioned inside the square groove (922), a support rod (923) is arranged above the three-edge block (922), the support rod (923) is inclined plane towards one side of the three-edge block (922), the inclined surface of the support rod (923) is positioned at the lower end of the support rod (923), the inclined surface of the support rod (923) is attached to the inclined surface of the triangular block (922), and the top surface of the support rod (923) is fixedly arranged on the bottom surface of the triangular block (917);

spacing groove (924) have been seted up to the outer wall of trigger lever (921), and spacing groove (924) set up in the inside of spread groove (920), and spacing groove (924) are located the crossing department of spread groove (920) vertical end and horizontal end, and axis of rotation (925) is cup jointed in the inside activity of spacing groove (924), and both ends difference fixed mounting is in the inside lateral wall of controlling of spread groove (920) about axis of rotation (925).

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