CN114033274A

CN114033274A - Engineering cost evaluation sheet and drawing anti-theft storage device thereof

Info

Publication number: CN114033274A
Application number: CN202111418760.0A
Authority: CN
Inventors: 丁浙鸣
Original assignee: Individual
Current assignee: Zhejiang Zhicheng Engineering Consulting Co ltd
Priority date: 2021-11-26
Filing date: 2021-11-26
Publication date: 2022-02-11
Anticipated expiration: 2041-11-26
Also published as: CN114033274B

Abstract

The invention provides an engineering cost evaluation sheet and a drawing anti-theft storage device thereof, and relates to the field of engineering cost, which comprises a box body, a cover plate, two locking plates and two push rods, wherein the cover plate is hinged on the box body, a locking ring is arranged in the box body, a locking hook is arranged on the cover plate, the locking hook corresponds to the locking ring, the two locking plates are respectively positioned on the upper side and the lower side of the locking ring and horizontally and slidably connected with the box body, two locking holes are formed in the cover plate, a locking tongue horizontally and slidably connected with the cover plate is arranged in the locking hole, a first spring is arranged between the locking tongue and the cover plate, the locking plate is concave, a blocking plate and a clamping plate are arranged in the box body, the blocking plate is positioned in the locking plate, a first clamping groove is respectively formed in the upper side and the lower side of the clamping plate, one end of each push rod is connected with the locking plate, the other end of the locking plate is clamped in the first clamping groove, a second spring is arranged between the locking plate and the box body, and a pushing mechanism is arranged on the locking ring. The anti-theft storage device realizes secondary locking of the cover plate when a lawless person prizes the cover plate, and greatly improves the anti-theft performance of the storage device.

Description

Engineering cost evaluation sheet and drawing anti-theft storage device thereof

Technical Field

The invention relates to the technical field of construction cost, in particular to a construction cost evaluation sheet and a drawing anti-theft storage device thereof.

Background

The construction cost refers to the total cost spent on a certain project construction. The construction cost is a generalized concept, and the construction cost has different meanings on different occasions. The construction cost includes construction cost, single construction cost, unit construction cost, construction installation cost and the like due to different research objects. The documents and drawings related to the engineering cost are relatively important, the documents and drawings related to the engineering cost are comprehensively evaluated by one company, and meanwhile, the bidding of one company is the most key technical chip, so that the documents related to the engineering cost and the emphasis of any company are placed in a safe box to prevent the documents from being stolen by others. At present, the safe box on the market usually prevents burglary through complex passwords and lock cylinders, but if lawbreakers forcibly tilt and damage the box door, the data in the safe box can still be obtained, so that the current safe box does not have the function of secondary locking and can be used by some lawbreakers.

Disclosure of Invention

Technical problem to be solved

Aiming at the defects of the prior art, the invention provides a project cost evaluation sheet and a drawing anti-theft storage device thereof, and solves the problems in the background technology.

(II) technical scheme

In order to achieve the purpose, the invention is realized by the following technical scheme: an engineering cost evaluation sheet and a drawing anti-theft storage device thereof comprise a box body and a cover plate, wherein the cover plate is hinged on the box body, a lock ring is arranged in the box body, a lock hook is arranged on the cover plate and corresponds to the lock ring, the drawing anti-theft storage device also comprises two lock plates and two push rods, the two lock plates are respectively positioned at the upper side and the lower side of the lock ring and are horizontally and slidably connected with the box body, two lock holes are arranged on the cover plate and are positioned at the upper side and the lower side of the lock hook and correspond to the lock plates, a lock tongue horizontally and slidably connected with the cover plate is arranged in each lock hole, a first spring is arranged between each lock tongue and the cover plate, the lock plates are concave, a barrier plate and a clamp plate are arranged in the box body, the barrier plate is positioned in the lock plates, first clamping grooves are respectively arranged at the upper side and the lower side of each clamp plate, one end of each push rod is connected with the lock plate, the other end of each push rod is clamped in the first clamping groove, and a second spring is arranged between the locking plate and the box body, and a pushing mechanism is arranged on the locking ring and used for pushing the push rod to separate the push rod from the clamping plate when the cover plate is pried.

Preferably, the pushing mechanism comprises a connecting rod, a pushing block and a breaking rod, one end of the connecting rod is connected with the lock ring, the other end of the connecting rod is connected with one end of the breaking rod, the other end of the breaking rod is connected with the box body, the connecting rod penetrates through the clamping plate, the pushing block is arranged on the connecting rod and located behind the clamping plate, the size of the pushing block corresponds to that of the clamping groove, the diameter of the breaking rod is smaller than that of the connecting rod ruler, and the rigidity of the breaking rod is weaker than that of the connecting rod.

Preferably, one end, clamped into the clamping groove, of the push rod is in a trapezoid shape with a large front part and a small back part.

Preferably, the box is internally provided with an ink jet mechanism for jetting ink to a file in the box when the cover plate is pried open, the ink jet mechanism comprises a scroll, a rotating plate and a spraying box, the scroll is arranged on the box, the rotating plate is arranged at the bottom of the scroll and connected with the scroll, the spraying box is arranged at the bottom of the rotating plate, the box is provided with a clamping mechanism for fixing the rotating plate, the clamping mechanism is connected with a locking plate and used for triggering the clamping mechanism when the locking plate continues to move outwards from the box when the blocking plate is broken, so that the rotating plate rotates under the action of the scroll, the spraying box is internally provided with a separation mechanism for dividing the spraying box into an ink storage area and an ink jet area at the upper side and the lower side, and the bottom of the spraying box is provided with a plurality of leak holes.

Preferably, the clamping mechanism comprises a clamping column and a rope, a clamping groove II is formed in the rotating plate, the clamping column is arranged in the box and horizontally and slidably connected with the box, the clamping column is connected with the box through a spring III, the clamping column and the clamping groove II correspond to each other, a cavity is formed in the box, one end of the rope is connected with the clamping column, and the other end of the rope is connected with the locking plate through the cavity.

Preferably, the partition mechanism comprises a baffle ring, a rotating ring and a plurality of baffle plates, the baffle ring is arranged in the spraying box, the rotating ring is pivoted in the spraying box and is positioned above the baffle ring, the plurality of baffle plates are positioned between the baffle ring and the rotating ring, one end of each baffle plate is hinged to the baffle ring, the other end of each baffle plate is hinged to the rotating ring, when the rotating ring is not rotated, the plurality of baffle plates block the opening of the baffle ring, and a trigger assembly is arranged in the rotating ring and is used for triggering the rotating ring to rotate when the spraying box is rotated.

Preferably, the trigger assembly comprises a poking rod and an iron ball, a pushing plate is arranged in the rotating ring, a groove is formed in the rotating ring, the iron ball is placed in the groove, the pushing plate is located on one side of the groove, the middle of the poking rod is hinged to the spraying box, one end, located on the rotating ring, of the poking rod corresponds to the iron ball, a fan blade is arranged at one end, located outside the spraying box, of the poking rod, and a spring IV is arranged between the poking rod and the spraying box.

Preferably, a placing plate is arranged in the box body and slides along the length direction of the box body, and a plurality of partition plates along the length direction of the placing plate are arranged on the placing plate.

Preferably, a magnet is arranged on the rear side of the placing plate, and an electromagnet is arranged on the rear side in the box body.

(III) advantageous effects

The invention provides a project cost evaluation sheet and a drawing anti-theft storage device thereof. The method has the following beneficial effects:

1. this engineering cost aassessment is single and drawing theftproof storage device thereof, when normal locking, the jam plate corresponds with the lockhole each other, has set up pushing mechanism simultaneously on the catch, when lawless persons pried the apron, trigger pushing mechanism through the catch, thereby through pushing mechanism, make the push rod break the cardboard, thereby in the lockhole is gone into to the jam plate bullet under spring effect, make stopping plate and spring bolt be located the jam plate, thereby make the apron carry out the secondary locking through the jam plate, further prevent that lawless persons from stealing file wherein.

Drawings

FIG. 1 is a schematic structural view of the present invention;

FIG. 2 is a schematic structural view of another side of the present invention;

FIG. 3 is a schematic structural view of the inside of the case when the cover plate is locked according to the present invention;

FIG. 4 is a schematic structural view of the other side surface of the interior of the case when the cover plate is locked according to the present invention;

FIG. 5 is a schematic view of the ink jet mechanism according to the present invention;

FIG. 6 is a schematic view of the interior of the spray tank of the present invention;

FIG. 7 is a schematic view showing the inside structure of the rotating ring according to the present invention;

FIG. 8 is a partial enlarged view of the project cost evaluation sheet and the anti-theft storage device shown in FIG. 7;

FIG. 9 is a schematic view showing the internal structure of the present invention when the iron ball is removed from the inner ring;

fig. 10 is a schematic view of the internal structure of the lock tongue of the present invention.

In the figure: 1. a box body; 2. a cover plate; 3. a lock hole; 31. a latch bolt; 32. a first spring; 4. a latch hook; 5. a locking ring; 6. placing the plate; 61. a partition plate; 62. a magnet; 63. an electromagnet; 8. an ink jet mechanism; 81. performing spiral winding; 82. a rotating plate; 83. a spraying tank; 84. a second clamping groove; 85. clamping the column; 86. a third spring; 87. a rope; 88. a poke rod; 89. a leak hole; 80. a baffle ring; 91. a baffle plate; 92. a rotating ring; 921. a push plate; 922. an iron ball; 923. a groove; 93. a fourth spring; 9. a locking plate; 10. a connecting rod; 11. a breaking bar; 12. a push block; 13. clamping a plate; 131. a first clamping groove; 14. a second spring; 15. a push rod; 16. a barrier plate.

Detailed Description

The embodiment of the invention provides a project cost evaluation sheet and a drawing anti-theft storage device thereof, as shown in figures 1-10, the project cost evaluation sheet comprises a box body 1, a cover plate 2, two locking plates 9 and two push rods 15, wherein the cover plate 2 is hinged on the box body 1, a locking ring 5 is arranged in the box body 1, a locking hook 4 is arranged on the cover plate 2, the locking hook 4 corresponds to the locking ring 5, the locking hook 4 is matched with a locking core on the cover plate 2, so that the locking hook 4 is turned downwards and is hooked into the locking ring 5, the cover plate 2 is fixed on the box body 1, an opening of the box body 1 can be closed, and documents in the box body 1 can be prevented from being stolen by others. Since the lock cylinder drives the lock hook 4 to rotate, which is already in the prior art, is widely used and is not the key point of the present application, it is not described in detail here. The other two locking plates 9 are arranged on the box body 1 and are respectively positioned at the upper side and the lower side of the locking ring 5, and meanwhile, the locking plates 9 are horizontally and slidably connected with the box body 1, so that the locking plates 9 can slide out of the box body 1. In order to be matched with the locking plate 9, the cover plate 2 is provided with two locking holes 3, the locking holes 3 are positioned on the upper side and the lower side of the locking hook 4 and correspond to the locking plate 9, a second spring 14 is arranged between the locking plate 9 and the box body 1, the locking plate 9 is popped out of the box body 1 through the elastic force of the second spring 14, and the locking plate 9 can be popped into the locking holes 3 when the cover plate 2 is closed. Set up in lockhole 3 with 2 horizontal sliding connection's of apron spring bolt 31, be provided with spring one 32 between spring bolt 31 and the apron 2 simultaneously, the elasticity through spring one 32 makes spring bolt 31 be located lockhole 3, and the one side that spring bolt 31 is close to box 1 is circular-arc, conveniently makes spring bolt 31 retract to in the apron 2 through thrust. As shown in fig. 4, the locking plate 9 needs to be clamped into the latch tongue 31, so the locking plate 9 is designed to be concave, meanwhile, a blocking plate 16 and a clamping plate 13 are arranged in the box body 1, wherein the blocking plate 16 is positioned in the locking plate 9, when the locking plate 9 is outwards popped out under the action of the second spring 14, the latch tongue 31 is popped out through the first spring 32 after the latch tongue 31 is pushed into the cover plate 2 by the protrusion at the front part of the locking plate 9, so that the latch tongue 31 and the blocking plate 16 are clamped between the protrusions at the two sides of the locking plate 9, and the cover plate 2 is secondarily fixed on the box body 1 by the locking plate 9.

As shown in fig. 3, the upper side and the lower side of the locking plate 13 are respectively provided with a first clamping groove 131, one end of the push rod 15 is connected with the locking plate 9, the other end of the push rod 15 is clamped into the first clamping groove 131, and the rear portion of the push rod 15 clamped into one end of the first clamping groove 131 is located behind the locking plate 13, so that the locking plate 9 is fixed in the box body 1 through the push rod 15. When a lawbreaker prizes the cover plate 2, the lock plate 9 enters the lock hole 3, therefore, a pushing mechanism is arranged on the lock ring 5, the pushing mechanism is used for triggering the pushing mechanism through the lock ring 5 when the lawbreaker prizes the cover plate 2, the push rod 15 can be separated from the first clamping groove 131 on the clamping plate 13 through the pushing mechanism, so that the lock plate 9 can be bounced into the lock hole 3 under the action of the second spring 14, the lock tongue 31 and the blocking plate 16 are positioned between bulges at two sides of the lock plate 9, and the cover plate 2 can be secondarily fixed on the box body 1 through the lock plate 9 when the lawbreaker prizes.

As shown in fig. 3, the pushing mechanism includes a connecting rod 10, a pushing block 12 and a breaking rod 11, wherein one end of the connecting rod 10 is connected to the locking ring 5, the other end of the connecting rod is connected to one end of the breaking rod 11, and the other end of the breaking rod 11 is connected to the box body 1, and meanwhile, the diameter of the breaking rod 11 is smaller than that of the connecting rod 10, and the rigidity is also weaker than that of the connecting rod 10, if the connecting rod 10 is made of a rigid material, the breaking rod 11 is made of a plastic material, so that when a lawless person pries the cover plate 2, the breaking rod 11 breaks before the connecting rod 10. Simultaneously connecting rod 10 passes cardboard 13 for connecting rod 10 slides on cardboard 13, sets up ejector pad 12 on connecting rod 10 and is located the rear of cardboard 13, and ejector pad 12 size and draw-in groove 131 correspond to each other, thereby when guaranteeing that ejector pad 12 moves to cardboard 13, make ejector pad 12 and push rod 15's rear portion contact, and promote push rod 15 and promote forward, make push rod 15 drop cardboard 13. For convenience, the push rod 15 is separated from the first slot 131, so that the end of the push rod 15, which is clamped into the first slot 131, is in a trapezoidal shape with a larger front part and a smaller rear part, and the push rod 15 can be separated from the first slot 131 only by separating the front part of the push rod 15, which is clamped into the first slot 131, from the first slot 131.

As shown in fig. 3 and 4, when a lawbreaker pries the cover plate 2, the fracture rod 11 fractures before the connecting rod 10, and at the same time, the locking ring 5 drives the connecting rod 10 to move forward by prying the cover plate 2 again by the lawbreaker, so as to drive the pushing block 12 on the connecting rod 10 to move toward the clamping plate 13, so that the pushing block 12 contacts with the rear part of the pushing rod 15 and pushes the pushing rod 15 to move forward, so as to separate the pushing rod 15 from the clamping groove from the front part of the clamping plate 13, and under the action of the second spring 14, the locking plate 9 pops out of the box body 1 and enters the locking hole 3, so that the locking tongue 31 and the blocking plate 16 are located between the protrusions at both sides of the locking plate 9, so as to fix the cover plate 2 on the box body 1 again through the locking plate 9.

In many times, lawbreakers steal when nobody, and the cover plate 2 and the box body 1 can still be separated after the lawbreakers are damaged for a certain time, so that the files in the box body 1 are stolen, and the data lock on the files is leaked. In order to solve the problem, an ink jet mechanism 8 is arranged in the box body 1, when the cover plate 2 is pried open, the ink jet mechanism 8 jets ink into the box body 1, so that ink is adhered to the document, and lawless persons cannot see characters recorded on the document clearly. As shown in fig. 5, the ink-jet mechanism 8 includes a scroll 81, a rotating plate 82 and a spraying tank 83, the scroll 81 is disposed on the housing 1, and the rotating plate 82 is disposed at the bottom of the scroll 81 and connected to the scroll 81 so that the rotating plate 82 is rotated when the scroll 81 is released. And a spray tank 83 is provided at the bottom of the rotation plate 82 and is connected to the rotation plate 82 so that the spray tank 83 is rotated together when the rotation plate 82 is rotated. Since the scroll 81 is in the tightened state from the beginning, a chucking mechanism for fixing the rotating plate 82 is provided on the casing 1 in order to prevent the rotating plate 82 from rotating without being stolen and to prevent the documents in the casing 1 from being contaminated. And meanwhile, the clamping mechanism is connected with the locking plate 9, when a lawbreaker pries the cover plate 2, the locking plate 9 enters the lock hole 3, the cover plate 2 is still pried continuously, the blocking plate 16 positioned in the locking plate 9 is broken, the locking plate 9 pops out of the box body 1 again, and therefore the clamping mechanism is triggered, the rotating plate 82 is loosened by the clamping mechanism, the rotating plate 82 rotates under the action of the scroll 81, and ink in the spraying box 83 is spilled out. A partition mechanism is provided in the spraying tank 83, and the spraying tank 83 is divided into an upper part and a lower part by the partition mechanism, wherein the upper part is an ink storage area, and the lower part is an ink ejection area. The bottom of the spraying box 83 is provided with a plurality of leakage holes 89, and the ink in the ink spraying area is sprayed in the box body 1 through the leakage holes 89.

As shown in fig. 4 and 5, the clamping mechanism includes a clamping column 85 and a rope 87, a second clamping groove 84 is formed in the rotating plate 82, the clamping column 85 is disposed in the box body 1 and horizontally slidably connected to the box body 1, the clamping column 85 corresponds to the second clamping groove 84, the clamping column 85 is connected to the box body 1 through a third spring 86, and the clamping column 85 moves toward the rotating plate 82 through the elastic force of the third spring 86 and is clamped into the clamping groove. Meanwhile, a cavity is arranged in the box body 1, one end of the rope 87 is connected with the clamping column 85, and the other end of the rope is connected with a locking plate 9 through the cavity. Therefore, when the lock plate 9 is already located in the lock hole 3, a lawbreaker still pries the cover plate 2 again to break the blocking plate 16 in the lock plate 9, so that the lock plate 9 moves outwards of the box body 1 again under the action of the second spring 14, and the clamping column 85 is pulled to be separated from the second clamping groove 84, so that the rotating plate 82 rotates under the action of the scroll 81.

As shown in fig. 6, the partition mechanism includes a baffle ring 80, a rotating ring 92 and a plurality of baffles 91, wherein the baffle ring 80 is disposed in the spraying tank 83 and connected to the spraying tank 83, and the rotating ring 92 is pivoted in the spraying tank 83 and located above the baffle ring 80. The plurality of baffles 91 are arranged between the baffle ring 80 and the rotating ring 92, wherein one section of the baffles 91 is hinged on the baffle ring 80, and the other end is hinged on the rotating ring 92, so that the plurality of baffles 91 can be driven to rotate when the rotating plate 82 rotates. When the rotating ring 92 is not rotated, the plurality of shutters 91 block the openings of the ring 80, so that the spray tank 83 is divided into an ink storage area and an ink ejection area by the plurality of shutters 91.

In order to rotate the rotating ring 92, the rotating ring 92 is concave, and a trigger assembly is disposed in the rotating ring 92, and the trigger mechanism is triggered when the spraying box 83 rotates, so as to drive the rotating ring 92 to rotate, and open the opening of the baffle ring 80, so that the ink in the upper ink storage area flows into the lower ink jet area. As shown in fig. 7, 8 and 9, trigger the subassembly and include that poker rod 88 and iron ball 922 move, be provided with the impeller plate 921 in the rotatory ring 92, seted up recess 923 on the rotatory ring 92, iron ball 922 is placed in recess 923, and iron ball 922 is placed in recess 923, prevents that iron ball 922 from sliding at will in rotatory ring 92, promotes the anticlockwise one side that is located recess 923 simultaneously. In addition, the middle of the poke rod 88 is hinged to the spraying box 83, one end of the poke rod 88 penetrates through the spraying box 83, is located in the rotating ring 92 and located on one side of the iron ball 922 clockwise and corresponds to the iron ball 922, a fan blade is arranged at one end, located outside the spraying box 83, of the poke rod 88, a spring four 93 is arranged between the poke rod 88 and the spraying box 83, and the end, located in the rotating ring 92, of the poke rod 88 is close to the spraying box 83 through the elastic force of the spring four 93.

When the locking plate 9 is already positioned in the locking hole 3, a lawbreaker still prizes the cover plate 2 again, so that the blocking plate 16 is broken, the locking plate 9 pops out of the box body 1 again, and when the locking plate 9 pops out of the box body 1, the clamping column 85 is pulled by the rope 87 to be separated from the second clamping groove 84. After the clamping column 85 is separated from the second clamping groove 84, the rotating plate 82 rotates clockwise rapidly under the action of the scroll 81, the poke rod 88 rotates under the rotation of the spraying box 83, due to the action of air flow, the poke rod 88 rotates, the poke rod 88 located at one end in the rotating ring 92 is close to the iron ball 922, the iron ball 922 is knocked away from the groove 923, the iron ball is moved towards the pushing plate 921 and collides with the pushing plate 921, under the action of the impact of the iron ball 922, the rotating plate 82 rotates counterclockwise for a certain angle, the baffles 91 rotate, the openings of the baffle rings 80 are opened, ink in the upper ink storage area flows into the ink spraying area at the lower part, meanwhile, due to the high-speed rotation of the spraying box 83, the ink in the ink spraying area is sprayed to the periphery in the box body 1, the ink is guaranteed to be sprayed on the documents in the box body 1, and the destruction of the documents can be completed.

In order to facilitate a user to store files in the box body 1, as shown in fig. 1 and fig. 2, a placing plate 6 is arranged in the box body 1 in a sliding fit manner along the length direction of the box body 1, and a plurality of partition plates 61 are arranged on the placing plate 6 along the length direction of the placing plate 6, so that the user can conveniently find the files by placing the files between the adjacent partition plates 61, namely classifying the files. The rear side of placing board 6 simultaneously is provided with magnet 62, and the rear side is provided with electro-magnet 63 in box 1, and electro-magnet 63 links to each other with outside controller and power, and is the same with magnet 62 magnetism when normally opening electro-magnet 63, will place board 6 and release outside box 1, and when closing, electro-magnet 63 is opposite with magnet 62 magnetism, will place board 6 and inhale back in box 1, convenience of customers seeks the data.

The working principle is as follows: when the engineering cost evaluation sheet and the drawing anti-theft storage device are used, when a user closes the cover plate 2 and the lock hook 4 is buckled into the lock ring 5, as shown in fig. 3, when a lawless person pries the cover plate 2, the fracture rod 11 fractures before the connecting rod 10, so that the connecting rod 10 slides on the clamping plate 13. And a lawbreaker pries the cover plate 2 again, so that the lock ring 5 and the connecting rod 10 are driven to move forwards, the push block 12 on the connecting rod 10 impacts the rear part of the push rod 15 clamped in the first clamping groove 131, and the front part of the push rod 15 is separated from the first clamping groove. When under the effect of the second spring 14, the locking plate 9 bounces outwards the box body 1 and enters the locking hole 3, the bolt 31 in the locking hole 3 is pushed into the cover plate 2, and bounces out again under the effect of the first spring 32, so that the bolt 31 and the blocking plate 16 are located in the locking plate 9, secondary locking of the cover plate 2 is achieved, and the anti-theft effect of the storage device is greatly improved.

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

1. The utility model provides an engineering cost aassessment is single and drawing theftproof storage device thereof, includes box (1) and apron (2), apron (2) articulate on box (1), be provided with catch (5) in box (1), be provided with latch hook (4) on apron (2), latch hook (4) and catch (5) correspond each other, its characterized in that: the lock is characterized by further comprising two locking plates (9) and two push rods (15), wherein the two locking plates (9) are respectively positioned on the upper side and the lower side of the locking ring (5) and are horizontally and slidably connected with the box body (1), the cover plate (2) is provided with two locking holes (3), the locking holes (3) are positioned on the upper side and the lower side of the locking hook (4) and correspond to the locking plates (9), a locking tongue (31) horizontally and slidably connected with the cover plate (2) is arranged in the locking hole (3), a first spring (32) is arranged between the locking tongue (31) and the cover plate (2), the locking plates (9) are concave, a blocking plate (16) and a clamping plate (13) are arranged in the box body (1), the blocking plate (16) is positioned in the locking plates (9), the upper side and the lower side of the clamping plate (13) are respectively provided with a first clamping groove (131), one end of each push rod (15) is connected with the locking plate (9), the other end of the lock is clamped in the first clamping groove (131), a second spring (14) is arranged between the lock plate (9) and the box body (1), and a pushing mechanism is arranged on the lock ring (5) and used for pushing the push rod (15) to separate the push rod (15) from the clamping plate (13) when the cover plate (2) is pried.

2. The project cost evaluation sheet and the drawing anti-theft storage device thereof according to claim 1, characterized in that: the pushing mechanism comprises a connecting rod (10), a pushing block (12) and a breaking rod (11), one end of the connecting rod (10) is connected with the locking ring (5), the other end of the connecting rod is connected with one end of the breaking rod (11), the other end of the breaking rod (11) is connected with the box body (1), the connecting rod (10) penetrates through the clamping plate (13), the pushing block (12) is arranged on the connecting rod (10) and located behind the clamping plate (13), the size of the pushing block (12) corresponds to that of the clamping groove I (131), the diameter of the breaking rod (11) is smaller than the diameter of the connecting rod (10), and the rigidity of the pushing block is also weaker than that of the connecting rod (10).

3. The project cost evaluation sheet and the drawing anti-theft storage device thereof according to claim 2, characterized in that: the shape that push rod (15) blocked in draw-in groove one (131) one end is big back trapezoidal form.

4. The project cost evaluation sheet and the drawing anti-theft storage device thereof according to claim 1, characterized in that: the ink jet printing device is characterized in that an ink jet mechanism (8) is arranged in the box body (1) and used for jetting ink to a file in the box body (1) when the cover plate (2) is pried open, the ink jet mechanism (8) comprises a scroll (81), a rotating plate (82) and a spraying box (83), the scroll (81) is arranged on the box body (1), the rotating plate (82) is arranged at the bottom of the scroll (81) and connected with the scroll (81), the spraying box (83) is arranged at the bottom of the rotating plate (82), a clamping mechanism is arranged on the box body (1) and used for fixing the rotating plate (82), the clamping mechanism is connected with the locking plate (9) and used for triggering the clamping mechanism when the blocking plate (16) breaks and the locking plate (9) continues to move outwards of the box body (1) so that the rotating plate (82) rotates under the action of the scroll (81), and a separation mechanism is arranged in the spraying box (83), the spraying box is used for dividing the spraying box (83) into an ink storage area and an ink jetting area, wherein the upper side and the lower side of the spraying box are divided into the ink storage area and the ink jetting area, and a plurality of leakage holes (89) are formed in the bottom of the spraying box (83).

5. The project cost evaluation sheet and the drawing anti-theft storage device thereof according to claim 4, characterized in that: the clamping mechanism comprises a clamping column (85) and a rope (87), a clamping groove II (84) is formed in the rotating plate (82), the clamping column (85) is arranged in the box body (1) and is horizontally and slidably connected with the box body (1), the clamping column (85) is connected with the box body (1) through a spring III (86), the clamping column (85) corresponds to the clamping groove II (84), a cavity is formed in the box body (1), one end of the rope (87) is connected with the clamping column (85), and the other end of the rope is connected with the locking plate (9) through the cavity.

6. The project cost evaluation sheet and the drawing anti-theft storage device thereof according to claim 4, characterized in that: the separating mechanism comprises a blocking ring (80), a rotating ring (92) and a plurality of baffles (91), the blocking ring (80) is arranged in the spraying box (83), the rotating ring (92) is pivoted in the spraying box (83) and is positioned above the blocking ring (80), the baffles (91) are positioned between the blocking ring (80) and the rotating ring (92), one end of each baffle (91) is hinged to the corresponding blocking ring (80), the other end of each baffle is hinged to the corresponding rotating ring (92), when the rotating ring (92) does not rotate, the baffles (91) block the opening of the corresponding blocking ring (80), and a triggering assembly is arranged in the rotating ring (92) and used for triggering the rotating ring (92) to rotate when the spraying box (83) rotates.

7. The project cost evaluation sheet and the drawing anti-theft storage device thereof according to claim 6, characterized in that: trigger the subassembly and include poker rod (88) and iron ball (922), be provided with slurcam (921) in rotatory ring (92), seted up on rotatory ring (92) recess (923), iron ball (922) are placed in recess (923), slurcam (921) are located one side of recess (923), the middle part of poker rod (88) articulates on spray box (83), poker rod (88) are located the one end of rotatory ring (92) and are corresponding with iron ball (922), and the one end that is located spray box (83) outer is provided with the flabellum, be provided with spring four (93) between poker rod (88) and spray box (83).

8. The project cost evaluation sheet and the drawing anti-theft storage device thereof according to claim 1, characterized in that: the box is characterized in that a placing plate (6) is arranged in the box body (1) and is matched with the box body in a sliding mode along the length direction of the box body (1), and a plurality of partition plates (61) are arranged on the placing plate (6) along the length direction of the placing plate (6).

9. The project cost evaluation sheet and the drawing anti-theft storage device thereof according to claim 8, characterized in that: the rear side of the placing plate (6) is provided with a magnet (62), and the rear side in the box body (1) is provided with an electromagnet (63).