An audit device for engineering cost

Abstract

The present invention relates to an audit device, and in particular to an audit device for engineering cost. The present invention provides an audit device for engineering cost that can not only be used to store data, but also provide a platform for supporting the data, which is convenient for temporary office work and can also be easily transferred. The present invention provides such an audit device for engineering cost, including a mobile frame, a box body, a guide frame, a storage cabinet, a placement frame, etc.; the left and right parts of the guide frame are both slidably sleeved with a box body, and the lower side of the box body is connected to a mobile frame for auxiliary movement. Data are classified and stored by the storage cabinet and the placement frame, and the operator can place the data on the placement board, and the placement board acts as a workbench to support the data, so as to facilitate the operator to temporarily work, improve the convenience of the device, and enable the operator to easily transfer the device through the mobile frame.

Description

Technical Field

[0001] The invention relates to an audit device, in particular to an audit device used for engineering cost. Background Art

[0002] When placing tools related to engineering cost, you need to use engineering cost tool boxes to store the materials. However, the existing data storage box structure is too simple and cannot classify the materials well. The current storage box classification basically places various types of materials in different compartments on the same storage box, which is easy to mix, inconvenient to identify types and find, not conducive to the preservation and organization of files, and has a single function and can only be used to store data.

[0003] For example, a construction cost audit device disclosed in the patent authorization publication number CN215456465U and the announcement date 20220111 relates to the technical field of construction cost audit storage equipment. The present invention includes a box body with openings on adjacent two sides, a box door for blocking the opening in the length direction is installed on one side of the box body, a guide rod is vertically fixed at one of the corners at the bottom end of the box body, and a plurality of sleeves are vertically rotatably installed on the guide rod, and a plurality of partitions are installed in a vertical array inside the box body, and a placement plate is placed on the top of each partition, one of the corners of the placement plate is connected to the sleeve, and a baffle is fixed on one side of the placement plate. Although the construction cost audit device can be used to store data, it cannot conveniently provide a support platform for the data when the operator needs to sign the data, and it cannot facilitate the operator to transfer it, so it has limitations.

[0004] In view of the shortcomings of the above-mentioned prior art, an audit device for engineering cost is designed to overcome the shortcomings of the prior art and is a platform that can not only be used to store data but also provide support for the data, which is convenient for temporary office use and can also be easily transferred. Summary of the invention

[0005] In order to overcome the shortcomings of the above-mentioned prior art that the platform cannot conveniently provide support for data and cannot enable operators to transfer them conveniently, the technical problem to be solved by the present invention is to provide an audit device for engineering cost that can not only be used to store data but also provide support for data, which is convenient for temporary office and can also be conveniently transferred.

[0006] In order to solve the above technical problems, the present invention provides an audit device for engineering cost, including a movable frame, a box, a guide frame, a storage cabinet, a placement frame, a pull plate, a first torsion spring, a placement mechanism and a clamping mechanism. The left and right parts of the guide frame are both slidably sleeved with the box, and the lower side of the box is connected to a movable frame for auxiliary movement. The interior of the guide frame is evenly spaced from top to bottom and has four storage cabinets for storing documents. The front of the storage cabinet is connected to two placement frames for placing small cards and arranged in a left-right symmetrical manner. A magnetic pull plate is rotatably provided on the lower rear side of the box. A first torsion spring for resetting is connected between the pull plate and the box. The magnetic force of the two pull plates interacting with each other is greater than the torsion of the first torsion spring. The box is provided with a placement mechanism for temporarily placing documents or serving as a workbench, and the storage cabinet is provided with a clamping mechanism for clamping documents.

[0007] Preferably, the placement mechanism includes a fixed block, a support plate and a placement plate, the middle rear side of the box body is connected to the fixed block, the outer side of the fixed block is connected to the support plate, and the upper front side of the support plate is connected to the placement plate for supporting data.

[0008] Preferably, the clamping mechanism includes a hinge rod, a second torsion spring, a hinge plate, a clamping plate, a first return spring, a fixed rod and an extrusion block. Two hinge rods symmetrically arranged are connected to the inner side of the rear of the storage cabinet. Hinge plates are rotatably mounted on both ends of the hinge rod. A second torsion spring wound around the outside of the hinge rod is connected between the hinge plate and the storage cabinet. A fixed rod passes through the front parts of the two hinge plates on the same hinge rod. A clamping plate for pressing data is slidably provided on the lower side of the front of the hinge plate. A first return spring is connected between the clamping plate and the hinge plate. Extrusion blocks for extruding the hinge plates are connected to the sides of the rear parts of the two boxes that are close to each other, and the extrusion blocks are in contact with the top middle hinge plate.

[0009] Preferably, a locking mechanism for locking the splint is also included, the locking mechanism includes a guide block, a telescopic plate and a second return spring, two groups of guide blocks for guiding and arranged symmetrically on the front inner side of the storage cabinet are connected, each group of guide blocks includes two guide blocks arranged symmetrically on the left and right, the upper part of the guide block is slidably penetrated by a telescopic plate for clamping, the telescopic plate is in contact with the fixed rod, and a second return spring located above the telescopic plate is connected between the telescopic plate and the guide block.

[0010] Preferably, an auxiliary mechanism for facilitating pulling out the storage cabinet is also included, the auxiliary mechanism includes a guide rod, a third return spring and a second handle, a guide rod is slidably provided in the front middle part of the storage cabinet, the front end of the guide rod is connected to the second handle, a third return spring wound around the outside of the guide rod is connected between the second handle and the storage cabinet, and the box body is in contact with the second handle.

[0011] Preferably, a storage mechanism for storing tools is also included, the storage mechanism includes a hinge block, a mounting plate, an elastic band, a mounting ring and a pressure rod, the two boxes are connected to a hinge block symmetrically arranged in the front and rear sides on the rear middle parts away from each other, a mounting plate is rotatably provided between the two symmetrical hinge blocks, two elastic bands for resetting are connected between the mounting plate and the box, seven mounting rings for hanging tools are evenly connected from front to back on the upper sides of the two mounting plates close to each other, and a pressure rod for transmitting power and located on the travel path of the pulling plate is connected to the rear upper part of the mounting plate.

[0012] Preferably, it also includes a stamping mechanism for facilitating stamping of documents, the stamping mechanism includes a guide plate, a seal, a connecting plate and an elastic member, the lower side of the placement plate is connected to a guide plate for guiding, the lower part of the guide plate is slidably penetrated by a seal, an elastic member wound around the outside of the seal is connected between the seal and the guide plate, the elastic member is a rubber spring, and the lower part of the seal is connected to a connecting plate.

[0013] Preferably, a first handle is further included, and the first handle made of rubber is connected to the sides of the two connecting plates that are away from each other.

[0014] On the basis of overcoming the shortcomings of the prior art, the present invention can also achieve the following beneficial effects:

[0015] 1. The data are classified and stored through the storage cabinet and the placement frame. The operator can place the data on the placement board, and the placement board serves as a workbench to support the data, so as to facilitate the operator to work temporarily and improve the convenience of the device. The mobile frame enables the operator to easily transfer the device.

[0016] 2. By clamping the fixing rod with the telescopic plate, the hinged plate will not rotate immediately after the hinged plate is loosened, and the splint will not release the material immediately, so as to prevent the material from being blown away by the wind. Later, when the operator needs to take or put the material, pushing the telescopic plate backwards can make the splint release the material, thus improving the operator's operability.

[0017] 3. The operator pulls the second handle forward, and the second handle drives the storage cabinet forward through the third return spring, so that the operator can easily pull out the storage cabinet.

[0018] 4. The operator inserts the tools (such as markers, pencils, etc.) into the mounting ring to store the tools, and the tools and materials are stored separately, which is convenient for the operator to use.

[0019] 5. The seal is driven downward by the first handle, and the seal will stamp the documents during the downward movement, so as to facilitate the stamping operation of the operator, and the operator does not need to carry additional tools to stamp the documents. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a schematic diagram of the three-dimensional structure of the present invention.

[0021] Figure 2 It is a schematic diagram of a first partial three-dimensional structure of the present invention.

[0022] Figure 3 It is a partial three-dimensional structural schematic diagram of the placement mechanism of the present invention.

[0023] Figure 4 It is a schematic diagram of a second partial three-dimensional structure of the present invention.

[0024] Figure 5 It is a schematic diagram of a first partial three-dimensional structure of the clamping mechanism of the present invention.

[0025] Figure 6 It is a schematic diagram of a second partial three-dimensional structure of the clamping mechanism of the present invention.

[0026] Figure 7 It is a partial three-dimensional structural schematic diagram of the locking mechanism and the auxiliary mechanism of the present invention.

[0027] Figure 8 It is a partial three-dimensional structural schematic diagram of the auxiliary mechanism of the present invention.

[0028] Fig. 9 It is a schematic diagram of a first partial three-dimensional structure of the storage mechanism of the present invention.

[0029] Fig.10 It is a schematic diagram of a second partial three-dimensional structure of the storage mechanism of the present invention.

[0030] Fig.11 It is a schematic diagram of a first partial three-dimensional structure of the placement mechanism and the stamping mechanism of the present invention.

[0031] Fig.12 It is a schematic diagram of a second partial three-dimensional structure of the placement mechanism and the stamping mechanism of the present invention.

[0032] The marks in the accompanying drawings are: 1-mobile frame, 2-box, 21-guide frame, 22-storage cabinet, 23-placing frame, 3-pull plate, 31-first torsion spring, 4-placing mechanism, 41-fixed block, 42-support plate, 43-placing plate, 5-clamping mechanism, 51-hinge rod, 52-second torsion spring, 53-hinge plate, 54-clamping plate, 55-first return spring, 56-fixed rod, 24-extrusion block, 6-locking mechanism, 61-guide block, 62-telescopic plate, 63-second return spring, 9-auxiliary mechanism, 91-guide rod, 92-third return spring, 93-second handle, 7-storage mechanism, 71-hinge block, 72-mounting plate, 73-elastic belt, 74-mounting ring, 75-pressure rod, 8-stamping mechanism, 81-guide plate, 82-seal, 83-connecting plate, 85-elastic member, 84-first handle. DETAILED DESCRIPTION

[0033] The present invention will be further described below in conjunction with the accompanying drawings and embodiments.

[0034] Example 1

[0035] An audit device for project cost, such as Figure 1-3 As shown, it includes a movable frame 1, a box body 2, a guide frame 21, a storage cabinet 22, a placement frame 23, a pull plate 3, a first torsion spring 31, a placement mechanism 4 and a clamping mechanism 5. The left and right parts of the guide frame 21 are both slidably sleeved with the box body 2, and the lower side of the box body 2 is bolted with the movable frame 1 for auxiliary movement. The inside of the guide frame 21 is evenly spaced from top to bottom and slidably provided with four storage cabinets 22 for storing documents. The front part of the storage cabinet 22 is bolted with two placement frames 23 for placing small cards and arranged in a left-right symmetrical manner. A magnetic pull plate 3 is rotatably provided on the lower rear side of the box body 2. A first torsion spring 31 for resetting is connected between the pull plate 3 and the box body 2. The magnetic force of the two pull plates 3 interacting with each other is greater than the torsion of the first torsion spring 31. The box body 2 is provided with a placement mechanism 4 for temporarily placing documents or serving as a workbench, and the storage cabinet 22 is provided with a clamping mechanism 5 for clamping documents.

[0036] like Figure 3 As shown, the placement mechanism 4 includes a fixed block 41, a support plate 42 and a placement plate 43. The fixed block 41 is bolted to the middle rear side of the box body 2, the support plate 42 is bolted to the outer side of the fixed block 41, and the placement plate 43 for supporting materials is welded to the upper front side of the support plate 42.

[0037] like Figure 2-6As shown, the clamping mechanism 5 includes a hinge rod 51, a second torsion spring 52, a hinge plate 53, a clamping plate 54, a first return spring 55, a fixed rod 56 and an extrusion block 24. Two hinge rods 51 arranged in a left-right symmetrical manner are welded to the inner side of the rear portion of the storage cabinet 22. The left and right ends of the hinge rod 51 are rotatably sleeved with hinge plates 53. A second torsion spring 52 wound around the outer side of the hinge rod 51 is connected between the hinge plate 53 and the storage cabinet 22. A fixed rod 56 runs through the front parts of the two hinge plates 53 on the same hinge rod 51. A clamping plate 54 for pressing down the data is slidably provided on the lower side of the front of the hinge plate 53. A first return spring 55 is connected between the clamping plate 54 and the hinge plate 53. An extrusion block 24 for extruding the hinge plate 53 is connected to the side of the rear portions of the two boxes 2 that are close to each other. The extrusion block 24 is in contact with the hinge plate 53 in the middle of the uppermost position.

[0038] Initially, the device is in a retracted state, the two pull plates 3 are magnetically attracted to each other, the first torsion spring 31 is in a deformed state, the extrusion block 24 clamps the uppermost hinge plate 53, the guide frame 21 clamps the remaining hinge plates 53, and the second torsion spring 52 is in a deformed state. When the operator needs to apply the device to the audit technology of engineering cost, first, the operator needs to open the device, that is, the operator rotates the two pull plates 3 in the direction away from each other to separate the two pull plates 3, and the first torsion spring 31 is reset. The two pull plates 3 will rotate in the direction away from each other under the action of the reset of the first torsion spring 31, and then the operator drives the left and right boxes 2 to move in the direction away from each other through the pull plates 3, and the box 2 will drive all the components arranged thereon to move , the left and right squeezing blocks 24 then move away from each other to release the top hinged plate 53. In addition, except for the top storage cabinet 22, the operator pulls the remaining storage cabinets 22 forward to pull the storage cabinet 22 out of the guide frame 21. The storage cabinet 22 will drive all the parts arranged thereon to move forward. Except for the top hinged plate 53, the remaining hinged plates 53 will immediately move forward and disengage from the guide frame 21. After the hinged plate 53 is released, the second torsion spring 52 is reset, and the hinged plate 53 will rotate under the action of the reset of the second torsion spring 52. The rotation of the hinged plate 53 will drive all the parts arranged thereon to rotate, and the clamping plate 54 will immediately rotate upward to open the device. At this time, the operator places the materials to be stored in the storage cabinet 22, small cards (such as business cards) are placed in the placement frame 23, so as to classify and store the items to avoid mixing the items together, which is convenient for sorting and storage. When the operator needs to temporarily work (such as signing documents), the operator can place the documents on the placement plate 43, and the placement plate 43 acts as a workbench to support the documents, so as to facilitate the operator to temporarily work and improve the convenience of the device. Finally, the operator pushes the pulled out storage cabinet 22 backward, and the storage cabinet 22 will drive all the components arranged thereon to move backward, except for the top hinged plate 53, and the rest of the hinged plates 53 will move backward immediately. During the backward movement, the hinged plates 53 will be squeezed by the guide frame 21 to rotate downward. The operator then drives the left and right boxes 2 to move toward each other and reset through the pull plate 3. The box 2 will drive all the parts arranged thereon to move. The left and right extrusion blocks 24 will then move toward each other and squeeze the top hinge plate 53 to rotate downward. The hinge plate 53 will deform the second torsion spring 52 when rotating downward. The hinge plate 53 will also drive the clamping plate 54 to press down the data in the storage cabinet 22 when rotating downward, so as to facilitate the transportation of the data and prevent the data from being scattered in the storage cabinet 22. When the clamping plate 54 contacts the data, the first reset spring 55 will be adaptively compressed to prevent the clamping plate 54 from crushing the data, thereby completing the operation of storing the data. Subsequently, the operator rotates the two pull plates 3 in the opposite direction, and the first torsion spring 31 deforms.The two pull plates 3 will be magnetically attracted together again during the rotation process, thereby closing the device and ending the use of the device. Finally, the operator can easily move the device through the mobile frame 1.

[0039] Example 2

[0040] On the basis of Example 1, Figure 2 and Figure 7 As shown, it also includes a locking mechanism 6 for locking the clamping plate 54, and the locking mechanism 6 includes a guide block 61, a telescopic plate 62 and a second return spring 63. Two groups of guide blocks 61 for guiding and arranged in a left-right symmetrical manner are connected to the front inner side of the storage cabinet 22. Each group of guide blocks 61 includes two guide blocks 61 arranged in a left-right symmetrical manner. The upper part of the guide block 61 is slidably penetrated by a telescopic plate 62 for clamping. The telescopic plate 62 is in contact with the fixed rod 56, and a second return spring 63 located above the telescopic plate 62 is connected between the telescopic plate 62 and the guide block 61.

[0041] Initially, the telescopic plate 62 clamps the fixed rod 56. After the hinged plate 53 is released, the hinged plate 53 will not rotate immediately, and the clamping plate 54 will not release the data immediately, so as to prevent the data from being blown away by the wind. When the operation requires the clamping plate 54 to release the data, the operator pushes the telescopic plate 62 backward, and the second reset spring 63 is compressed. The telescopic plate 62 will release the fixed rod 56 during the backward movement, so that when the operator needs to take or put the data, the clamping plate 54 releases the data, thereby improving the operator's operability. Subsequently, after the clamping plate 54 presses the data, the operator releases the telescopic plate 62, and the second reset spring 63 is reset. The telescopic plate 62 will move forward and reset under the action of the second reset spring 63 to clamp the fixed rod 56 again, thereby completing the use of the locking mechanism 6.

[0042] Example 3

[0043] On the basis of Example 2, Figure 1 , Figure 7 and Figure 8 As shown, it also includes an auxiliary mechanism 9 for facilitating pulling out the storage cabinet 22. The auxiliary mechanism 9 includes a guide rod 91, a third return spring 92 and a second handle 93. The guide rod 91 is slidably provided in the front middle part of the storage cabinet 22. The second handle 93 is bolted to the front end of the guide rod 91. The third return spring 92 wound around the outside of the guide rod 91 is connected between the second handle 93 and the storage cabinet 22, and the box body 2 is in contact with the second handle 93.

[0044] Initially, the box body 2 is stuck with the second handle 93, the third return spring 92 is in a compressed state, and the second handle 93 is retracted in the storage cabinet 22. When the operator opens the device, the left and right box bodies 2 will release the second handle 93 in the process of moving away from each other, the third return spring 92 is reset, and the second handle 93 will move forward from the storage cabinet 22 under the action of the third return spring 92. After the second handle 93 moves forward from the storage cabinet 22, the operator pulls the second handle 93 forward, and the second handle 93 will drive the storage cabinet 22 to move forward through the third return spring 92, so that the operator can easily pull out the storage cabinet 22. Subsequently, when the operator needs to close the device, the operator pushes the storage cabinet 22 to move backward again, and the left and right box bodies 2 will squeeze the second handle 93 to move backward in the process of moving closer to each other, and the third return spring 92 is compressed, so that the second handle 93 is retracted into the storage cabinet 22 again.

[0045] Example 4

[0046] On the basis of Example 3, Figure 1 , Fig. 9 and Fig.10 As shown, it also includes a storage mechanism 7 for storing tools, and the storage mechanism 7 includes a hinge block 71, a mounting plate 72, an elastic band 73, a mounting ring 74 and a pressure rod 75. The hinge blocks 71 arranged in a front-to-back symmetrical manner are bolted on the side of the rear middle parts of the two boxes 2 that are away from each other, and a mounting plate 72 is rotatably provided between the two symmetrical hinge blocks 71. Two elastic bands 73 for resetting are connected between the mounting plate 72 and the box 2. Seven mounting rings 74 for hanging tools are welded evenly from front to back on the side of the upper parts of the two mounting plates 72 that are close to each other. A pressure rod 75 for transmitting power and located on the travel path of the pulling plate 3 is bolted on the rear upper part of the mounting plate 72.

[0047] When the two pull plates 3 rotate away from each other, the pull plates 3 will push the pressure rod 75 to rotate downward, and the pressure rod 75 will drive the mounting plate 72 to rotate downward, and the elastic band 73 will stretch. At this time, the operator inserts tools (such as markers, pencils, etc.) into the mounting ring 74 to store the tools, and at the same time, the tools and materials are stored separately, which is convenient for the operator to use. Subsequently, the pull plate 3 will release the pressure rod 75 during the reverse rotation, and the elastic band 73 will restore its shape, and the mounting plate 72 will then rotate upward to put away the tools.

[0048] Example 5

[0049] On the basis of Example 4, Figure 1 , Fig.11 and Fig.12As shown, it also includes a stamping mechanism 8 for facilitating stamping of documents, and the stamping mechanism 8 includes a guide plate 81, a seal 82, a connecting plate 83 and an elastic member 85. The lower side of the placement plate 43 is bolted with a guide plate 81 for guiding, and the lower part of the guide plate 81 is slidably penetrated by the seal 82. An elastic member 85 wound around the outer side of the seal 82 is connected between the seal 82 and the guide plate 81, and the elastic member 85 is a rubber spring. The lower part of the seal 82 is bolted with a connecting plate 83.

[0050] like Fig.12 As shown, a first handle 84 is also included. The first handle 84 made of rubber is bolted to one side of the two connecting plates 83 away from each other.

[0051] The operator places the document to be stamped on the position of the box body 2 below the seal 82, and then drives the connecting plate 83 to move downward through the first handle 84. The connecting plate 83 will drive the seal 82 to move downward, and the elastic member 85 will be compressed. The seal 82 will stamp the document during the downward movement, so as to facilitate the operator's stamping operation, and the operator does not need to carry additional tools to stamp the document. Then the operator releases the first handle 84, the elastic member 85 is reset, and the seal 82 will move upward and reset under the action of the reset of the elastic member 85, thereby ending the stamping operation.

[0052] The above-mentioned embodiments only express the preferred implementation modes of the present invention, and the descriptions thereof are relatively specific and detailed, but they cannot be understood as limiting the scope of the present invention. It should be pointed out that, for a person skilled in the art, several modifications, improvements and substitutions can be made without departing from the concept of the present invention, and these all belong to the protection scope of the present invention. Therefore, the protection scope of the present invention patent shall be subject to the attached claims.

Claims

1. An audit device for engineering cost, comprising a movable frame (1), a box (2), a guide frame (21), a storage cabinet (22), a placement frame (23), a pull plate (3) and a first torsion spring (31), wherein the left and right parts of the guide frame (21) are both slidably sleeved with the box (2), the lower side of the box (2) is connected to the movable frame (1) for auxiliary movement, the inside of the guide frame (21) is slidably provided with four storage cabinets (22) for storing data, the front part of the storage cabinet (22) is connected to two placement frames (23) for placing small cards, a magnetic pull plate (3) is rotatably provided on the lower rear side of the box (2), a first torsion spring (31) for resetting is connected between the pull plate (3) and the box (2), the magnetic force of the interaction between the two pull plates (3) is greater than the torsion of the first torsion spring (31), and the device is characterized in that: It also includes a placement mechanism (4) and a clamping mechanism (5), wherein the box body (2) is provided with a placement mechanism (4) for temporarily placing materials or serving as a workbench, and the storage cabinet (22) is provided with a clamping mechanism (5) for clamping materials; The placement mechanism (4) comprises a fixed block (41), a support plate (42) and a placement plate (43); the fixed block (41) is connected to the rear side of the middle of the box body (2); the support plate (42) is connected to the outer side of the fixed block (41); and the placement plate (43) for supporting materials is connected to the upper front side of the support plate (42); The clamping mechanism (5) comprises a hinged rod (51), a second torsion spring (52), a hinged plate (53), a clamping plate (54), a first return spring (55), a fixing rod (56) and an extrusion block (24). Two hinged rods (51) are connected to the inner side of the rear portion of the storage cabinet (22). The left and right ends of the hinged rods (51) are rotatably sleeved with hinged plates (53). The second torsion spring (52) is connected between the hinged plate (53) and the storage cabinet (22). The same hinged rod (51) is connected to the inner side of the rear portion of the storage cabinet (22). A fixing rod (56) passes through the front of the two hinged plates (53) on the hinged plate (51), a clamping plate (54) for pressing the data is slidably provided on the lower side of the front of the hinged plate (53), a first return spring (55) is connected between the clamping plate (54) and the hinged plate (53), and a squeezing block (24) for squeezing the hinged plate (53) is connected to the side of the rear of the two boxes (2) close to each other, and the squeezing block (24) is in contact with the hinged plate (53) at the top.

2. The audit device for project cost according to claim 1, characterized in that: The invention also comprises a locking mechanism (6) for locking the clamping plate (54), the locking mechanism (6) comprising a guide block (61), a telescopic plate (62) and a second return spring (63), two groups of guide blocks (61) for guiding are connected to the inner side of the front part of the storage cabinet (22), each group of guide blocks (61) comprises two guide blocks (61), the upper part of the guide block (61) is slidably penetrated by a telescopic plate (62) for clamping, the telescopic plate (62) is in contact with the fixed rod (56), and a second return spring (63) is connected between the telescopic plate (62) and the guide block (61).

3. The audit device for project cost according to claim 2, characterized in that: The storage cabinet (22) also includes an auxiliary mechanism (9) for conveniently pulling out the storage cabinet (22), the auxiliary mechanism (9) including a guide rod (91), a third return spring (92) and a second handle (93), a guide rod (91) being slidably disposed at the front middle of the storage cabinet (22), the front end of the guide rod (91) being connected to the second handle (93), and a third return spring (92) wound around the outside of the guide rod (91) being connected between the second handle (93) and the storage cabinet (22).

4. The audit device for project cost according to claim 3 is characterized in that: The utility model also comprises a storage mechanism (7) for storing tools, wherein the storage mechanism (7) comprises a hinge block (71), a mounting plate (72), an elastic band (73), a mounting ring (74) and a pressure rod (75); a hinge block (71) arranged symmetrically in front and back is connected to the side of the rear middle parts of the two boxes (2) away from each other; a mounting plate (72) is rotatably arranged between the two symmetrical hinge blocks (71); an elastic band (73) for resetting is connected between the mounting plate (72) and the box (2); a mounting ring (74) for hanging tools is connected to the side of the upper parts of the two mounting plates (72) close to each other; and a pressure rod (75) for transmitting power is connected to the rear upper part of the mounting plate (72).

5. The audit device for project cost according to claim 4, characterized in that: The invention also comprises a stamping mechanism (8) for conveniently stamping the data, the stamping mechanism (8) comprising a guide plate (81), a stamp (82), a connecting plate (83) and an elastic member (85), the lower side of the placement plate (43) is connected to a guide plate (81) for guiding, the lower part of the guide plate (81) is slidably penetrated by the stamp (82), the elastic member (85) is connected between the stamp (82) and the guide plate (81), and the lower part of the stamp (82) is connected to the connecting plate (83).

6. The audit device for project cost according to claim 5, characterized in that: It also includes a first handle (84), and the first handle (84) made of rubber material is connected to the sides of the two connecting plates (83) that are away from each other.

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