Drawing storage rack

The drawing storage rack addresses the inconvenience of existing systems by providing features for easy classification, retrieval, and adaptable storage of drawings, improving user access and efficiency.

CN222272688UActive Publication Date: 2024-12-31HEILONGJIANG PROVINCE MUDANJIANG FORESTRY SURVEY & DESIGN INSTITUTE
View PDF 0 Cites 0 Cited by

Patent Information

Application Number
CN202420913116.3
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-04-29
Publication Date
2024-12-31
Estimated Expiration
2034-04-29

AI Technical Summary

Technical Problem

Existing drawing storage racks are inconvenient to search and take, causing unnecessary trouble for users.

Method used

A drawing storage rack with features such as cam-secured slots, linking members, push rods, rotating blocks, and splicing assemblies that allow for easy classification, retrieval, and flexible storage of drawings of varying sizes and heights.

Benefits of technology

Facilitates convenient storage, retrieval, and classification of drawings by enabling fine categorization, easy access, and adaptable storage configurations, enhancing user experience.

✦ Generated by Eureka AI based on patent content.

Smart Images

  • Figure CN222272688U_ABST
    Figure CN222272688U_ABST
Patent Text Reader

Abstract

The utility model belongs to the technical field of storage racks, and particularly relates to a drawing storage rack which comprises a storage rack body, a containing cavity is formed in one side of the storage rack body, first sliding grooves are formed in the inner walls of the two sides of the containing cavity, first sliding strips are connected into the first sliding grooves in an embedded and sliding mode, and the first sliding strips are fixedly arranged on the two sides of the storage rack body. The placement frame is slidably mounted in the placement cavity, a plurality of placement barrel grooves are formed in the placement frame in a penetrating mode, the top ends of the placement barrel grooves penetrate through the top end of the placement frame, a plurality of connecting barrels are fixedly mounted at the top end of the placement frame, and the connecting barrels are correspondingly mounted at the top ends of the placement barrel grooves; and movable plates are slidably arranged in the containing cylinder grooves and connected with a pushing assembly, and the problem that most of existing drawing storage racks are inconvenient to search and take, and unnecessary troubles are brought to users is solved.
Need to check novelty before this filing date? Find Prior Art

Description

Technical Field

[0001] The utility model belongs to the technical field of storage racks, and in particular relates to a drawing storage rack. Background Art

[0002] In the management of the entire engineering project, project management in the construction phase is the most complex and important. It mainly involves the management of the progress, quality, and safety of the engineering construction. Drawings are indispensable in the construction process, and at this time, drawings need to be stored on special storage racks to avoid damage or loss of drawings.

[0003] Most of the existing drawing storage racks are inconvenient to search and take, which brings unnecessary trouble to users. Utility Model Content

[0004] In view of the above problems, the purpose of the utility model is to provide a drawing storage rack to solve the problem that most existing drawing storage racks are inconvenient to search and take, which brings unnecessary trouble to users.

[0005] The cam is secured to the upper and lower surfaces of the storage tank with a plurality of slots therein, and the slots are engaged with the respective slots of the plurality of linking members.

[0006] The beneficial effects of the utility model are:

[0007] The card placement seat 1 can be used to store drawing classification cards, so that users can find drawings conveniently. The card placement seat 3 can be used to place drawing project name cards inside the placement rack. When the drawings are classified and stored, the name cards of the classification items in the total project can be placed in the card placement seat 2, so that the drawings can be classified more finely and the drawings can be found conveniently.

[0008] When the drawing is stored, and the drawings have different sizes and their heights after winding are different, and the drawings with lower heights are not convenient to take, at this time, the push rod can be pressed to make the push rod drive the slide plate to squeeze the spring two, and the insertion rod will be out of the limit card slot two and slide into the movable cavity, at this time, the rotating block is rotated, and the rotating rod drives the rotating drum to rotate, and at the same time, the rotating rotating drum drives the screw and the mounting block to rotate through the rotating rod, and the sliding block two threadedly connected with the rotating screw can drive the movable plate to slide in the placement cylinder groove, and the sliding movable plate can push out the drawings placed in the placement cylinder groove, which is convenient for taking the drawings. Similarly, rotating the rotating block in the opposite direction can make the movable plate slide to the bottom end of the placement cylinder groove for convenient storage of the drawings again. When the movable plate slides to a suitable position, the push rod can be released. At this time, the elastic potential energy of the spring two can make the insertion rod penetrate the bottom end of the rotating drum and be embedded in the limit card slot two in a suitable position, thereby limiting the rotating rotating drum and limiting the rotating screw at the same time.

[0009] For splicing of multiple storage racks:

[0010] As a further improvement of the above technical solution: the splicing assembly consists of a card block and a spring, a telescopic cavity is opened inside the engaging seat, and a card block is slidably installed in the telescopic cavity, and one end of the card block passes through one side of the engaging seat and is slidably connected thereto, and an inclined surface is arranged below one end of the card block, a spring is fixedly installed on the inner wall of one end of the telescopic cavity, and one end of the spring is fixedly connected to the other end of the card block, and one end of the card block is engaged with a limiting card slot.

[0011] The beneficial effect of this improvement is that the user can choose an appropriate number of storage racks according to the number of drawings to be stored, so as to better classify and store the drawings. When installing multiple storage racks, the engaging seat can be engaged with the inside of the card slot. At this time, the inclined surface of the card block is squeezed and slides into the telescopic cavity. At the same time, the spring 1 is in an elastic contraction state. When the engaging seat is engaged and slides to the appropriate position, the card block is not squeezed by external force, and the elastic potential energy of the spring 1 will cause the card block to slide and engage into the limiting card slot 1, thereby completing the splicing of multiple storage racks.

[0012] To store drawings in different ways:

[0013] As a further improvement of the above technical solution: two groups of storage slots are opened on one side of the bottom end of the storage rack, and two slide slots are opened on the inner walls of both sides of the storage slots, and two slide bars are slidably installed inside the two slide slots. The two slide bars are fixedly installed on both sides of the storage cabinet, and the storage cabinet is slidably installed in the storage slots.

[0014] The beneficial effect of this improvement is that when using this device, the user can place the drawings inside the storage cabinet, thereby storing the drawings in different ways.

[0015] To facilitate users to search for drawings:

[0016] As a further improvement of the above technical solution: a card placement seat is fixedly installed on one side of the storage cabinet.

[0017] The beneficial effect of this improvement is that a card placement seat is provided to store cards that classify drawings, thereby making it convenient for users to search for drawings.

[0018] To categorize the drawings more finely:

[0019] As a further improvement of the above technical solution: a mounting cover is sleeved on the outer side of the connecting tube, and a serial number is set on the top of the mounting cover, and a second card placement seat is installed on one side of the top of the mounting cover.

[0020] The beneficial effect of this improvement is that when the drawings are classified and stored, the name cards of the classified items in the general project can be placed in the second card placement seat, so as to classify the drawings more finely and facilitate the search of the drawings.

[0021] To facilitate the retrieval of drawings:

[0022] As a further improvement of the above technical solution: the pushing assembly is composed of a screw, a mounting block, a rotating drum, a rotating groove, a second limiting slot, an insert rod, a push rod, and a rotating block. Movable slots are provided on the inner walls of both sides of the placement drum slot, and screws and guide rods are respectively installed in the movable slots. A slider one is slidably mounted on the outer side of the guide rod, and the slider one is fixedly mounted on one side of the movable plate, and a slider two is fixedly mounted on the other side of the movable plate, and the slider two is sleeved and mounted on the outer side of the screw and threadedly connected thereto. The bottom end of the screw passes through the mounting cavity one, and a mounting block is fixedly mounted on the bottom end of the screw, and a rotating rod is fixedly mounted on the bottom end of the mounting block, and the rotating rod passes through the rotating groove. The mounting cavity one and the rotating groove are opened inside the bottom end of the placement rack, the rotating rod is fixedly connected to the top end of the rotating drum, and the top end of the rotating drum is rotatably connected to the rotating groove. The top end, the bottom end of the rotating drum is fixedly provided with a rotating rod, and the rotating rod passes through the top of the through hole and is rotatably connected with it, and the through hole is penetrated and opened at the bottom of the placing frame, and a rotating block is fixedly installed on the bottom end of the rotating rod, and an insertion rod is movably installed inside the connection between the rotating block and the rotating rod, and one end of the insertion rod passes through the bottom center of the rotating drum and is movably connected with it, and one end of the insertion rod is fixedly connected to a slide plate, and the slide plate is slidably arranged in the movable cavity, and the movable cavity is opened in the rotating drum, and a spring two is fixedly installed in the movable cavity, one end of the spring two is fixedly connected to one side of the slide plate, and an insertion rod is installed at the opposite side of the other side of the slide plate, and one end of the insertion rod passes through the bottom end of the rotating drum and is slidably connected with it, and a plurality of limiting card grooves two are equidistantly opened around the bottom end of the rotating groove, and the limiting card groove two is embedded in the connection with the insertion rod.

[0023] When the drawing is stored, and the drawings have different sizes and different heights after being wound, and the drawings with lower heights are not convenient to take, the push rod can be pressed at this time, so that the push rod drives the slide plate to squeeze the spring 2, and the insertion rod will be separated from the limiting card slot 2 and slide into the movable cavity, so that the rotating block is rotated, and the rotating rod drives the rotating drum to rotate, and at the same time, the rotating rotating drum drives the screw and the mounting block to rotate through the rotating rod, and the sliding block 2 threadedly connected to the rotating screw can drive the movable plate to slide in the placement cylinder groove, and the sliding movable plate can push out the drawings placed in the placement cylinder groove, which is convenient for taking the drawings. Similarly, rotating the rotating block in the opposite direction can make the movable plate slide to the bottom end of the placement cylinder groove for convenient storage of the drawings again. When the movable plate slides to a suitable position, the push rod can be released. At this time, the elastic potential energy of the spring 2 can make the insertion rod pass through the bottom end of the rotating drum and be embedded in the limiting card slot 2 at a suitable position, thereby limiting the rotating rotating drum and limiting the rotating screw at the same time.

[0024] The parts not involved in the device are the same as those in the prior art or can be implemented by using the prior art. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 It is a schematic diagram of the structure of the utility model;

[0026] Figure 2 This is a schematic diagram of the storage rack structure of the utility model;

[0027] Figure 3 This is a schematic diagram of the cross-sectional structure of the utility model after splicing;

[0028] Figure 4 This is a schematic diagram of the structure of the placement rack of the utility model;

[0029] Figure 5 This is a schematic diagram of the structure of the driving component of the utility model;

[0030] Figure 6 This is a schematic diagram of the structure of the splicing assembly of the utility model;

[0031] In the figure: 1. storage rack; 2. card slot; 3. limit card slot 1; 4. placement cavity; 5. storage rack; 6. through hole; 7. storage cabinet; 8. slide slot 1; 9. slide slot 2; 10. placement cylinder slot; 11. installation cover; 12. movable plate; 13. pushing component; 14. splicing component; 15. card placement seat 3; 16. connecting cylinder; 17. screw; 18. installation block; 19. rotating cylinder; 20. rotating slot; 21. limit card slot 2; 22. insertion rod; 23. push rod; 24. rotating block; 25. card block; 26. interlocking seat. DETAILED DESCRIPTION

[0032] In order to enable those skilled in the art to better understand the technical solution of the present invention, the present invention is described in detail below in conjunction with the accompanying drawings. The description in this part is only exemplary and explanatory and should not have any limiting effect on the protection scope of the present invention.

[0033] like Figure 1-6 As shown, a drawing storage rack includes a storage rack 1, a storage cavity 4 is opened on one side of the storage rack 1, and the inner walls of both sides of the storage cavity 4 are opened with a slide groove 8, a sliding connection slide bar 1 is embedded in the slide groove 8, and the slide bar 1 is fixedly installed on both sides of the storage rack 5, and the storage rack 5 is slidably installed in the storage cavity 4, a plurality of storage barrel grooves 10 are opened through the interior of the storage rack 5, and the top of the storage barrel grooves 10 passes through the top of the storage rack 5, and the top of the storage rack 5 is fixedly installed with a plurality of connecting barrels 16, and the connecting cylinder 16 is correspondingly arranged at the top of the placement cylinder groove 10, and the inside of the placement cylinder groove 10 is slidably installed with a movable plate 12, and the movable plate 12 is connected to the pushing component 13, a card slot 2 is opened on one side of the top of the storage rack 1, and a limiting card slot 3 is penetrated through the inner wall of one side of the card slot 2, the limiting card slot 3 is connected to the splicing component 14, the splicing component 14 is arranged in the embedding seat 26, the embedding seat 26 is embedded in the connecting card slot 2, and the embedding seat 26 is fixedly installed on one side of the bottom end of the storage rack 1.

[0034] The splicing assembly 14 is composed of a card block 25 and a spring 1. A telescopic cavity is provided inside the fitting seat 26, and a card block 25 is slidably installed in the telescopic cavity. One end of the card block 25 passes through one side of the fitting seat 26 and is slidably connected thereto. An inclined surface is arranged below one end of the card block 25. A spring 1 is fixedly installed on the inner wall of one end of the telescopic cavity, and one end of the spring 1 is fixedly connected to the other end of the card block 25. One end of the card block 25 is fitted and connected to a limiting card slot 13. The user can select the storage quantity according to the drawing. An appropriate number of storage racks 1 are provided to better classify and store the drawings. When installing multiple storage racks 1, the engaging seat 26 can be engaged with the inside of the card slot 2. At this time, the inclined surface of the card block 25 is squeezed and slides into the telescopic cavity. At the same time, the spring 1 is in an elastic contraction state. When the engaging seat 26 is engaged and slid to a suitable position, the card block 25 is not squeezed by external force. The elastic potential energy of the spring 1 will cause the card block 25 to slide and engage in the limiting card slot 3, thereby completing the splicing of multiple storage racks 1.

[0035] Two groups of storage slots are provided on one side of the bottom end of the storage rack 1, and two slide slots 9 are provided on the inner walls on both sides of the storage slots, and two slide bars are slidably installed inside the two slide slots 9, and the two slide bars are fixedly installed on both sides of the storage cabinet 7, and the storage cabinet 7 is slidably installed in the storage slots; when using this device, the user can place the drawings inside the storage cabinet 7, so as to store the drawings in different ways.

[0036] A card placement seat 1 is fixedly installed on one side of the storage cabinet 7; the card placement seat 1 can be used to store cards classified according to drawings, so that it is convenient for users to find drawings.

[0037] One side of the placement rack 5 is provided with three sets of card placement seats 3 15 ; the card placement seats 3 15 are provided so that the drawing project name cards can be placed inside the placement rack 5 .

[0038] The outer side of the connecting tube 16 is sleeved with an installation cover 11, and a serial number is set on the top of the installation cover 11, and a card placement seat 2 is installed on one side of the top of the installation cover 11; when the drawings are classified and stored, the name cards of the classified items in the general project can be placed in the card placement seat 2, so as to classify the drawings more finely and facilitate the search of drawings.

[0039] The pushing assembly 13 is composed of a screw 17, a mounting block 18, a rotating cylinder 19, a rotating groove 20, a second limiting card groove 21, an insert rod 22, a push rod 23, and a rotating block 24. The inner walls of both sides of the placement cylinder groove 10 are provided with movable grooves, and the screw 17 and the guide rod are respectively installed in the movable grooves. The outer side of the guide rod is sleeved and slidably installed with a slider 1, and the slider 1 is fixedly installed on one side of the movable plate 12, and the other side of the movable plate 12 is fixedly installed with a slider 2, and the slider 2 is sleeved and installed on the outer side of the screw 17 and threadedly connected thereto. The bottom end of the screw 17 passes through the mounting cavity 1, and the bottom end of the screw 17 is fixedly installed with a mounting block 18, and the bottom end of the mounting block 18 is fixedly installed with a rotating rod, and the rotating rod passes through the rotating groove 20. The installation cavity 1 and the rotation groove 20 are opened inside the bottom end of the placement frame 5, the rotating rod is fixedly connected to the top end of the rotating drum 19, and the top end of the rotating drum 19 is rotatably connected to the top end of the rotating groove 20, the bottom end of the rotating drum 19 is fixedly provided with a rotating rod, and the rotating rod passes through the top end of the through hole 6 and is rotatably connected thereto, the through hole 6 passes through and is opened at the bottom end of the placement frame 5, the bottom end of the rotating rod is fixedly provided with a rotating block 24, the connection between the rotating block 24 and the rotating rod is internally penetrated and movably provided with an insertion rod 22, and one end of the insertion rod 22 passes through the bottom end center of the rotating drum 19 and is movably connected thereto, and one end of the insertion rod 22 is fixedly connected to a slide plate, the slide plate is slidably provided in the movable cavity, the movable cavity is opened inside the rotating drum 19, and a There is a spring 2, one end of which is fixedly connected to one side of the slide plate, and an insertion rod 22 is installed at the opposite position of the other side of the slide plate, and one end of the insertion rod 22 passes through the bottom end of the rotating drum 19 and is slidably connected thereto, and a plurality of limit card grooves 21 are equidistantly arranged around the bottom end of the rotating groove 20, and the limit card grooves 21 are engaged with the insertion rod 22; when the drawings are stored, and the drawings have different sizes and different heights after winding, and the drawings with lower heights are not convenient to take, at this time, the push rod 23 can be pressed to make the push rod 23 drive the slide plate to squeeze the spring 2, and at the same time, the insertion rod 22 will be out of the limit card groove 21 and slide into the active cavity, at this time, the rotating block 24 is rotated, and the rotating rod drives the rotating drum 19 to rotate, and at the same time When the movable plate 12 slides to the appropriate position, the push rod 23 can be released. At this time, the elastic potential energy of the second spring can make the insertion rod 22 pass through the bottom end of the rotating cylinder 19 and be embedded in the second limiting slot 21 at the appropriate position, thereby limiting the rotating cylinder 19 and limiting the rotating screw 17 at the same time.

[0040] The working principle and use process of the utility model are as follows: when using the device, the card placement seat 1 can store the cards classified by drawings, so as to facilitate the user to search for drawings. The card placement seat 3 15 can place the card with the name of the drawing project inside the placement rack 5. When the drawings are classified and stored, the name card of the classified project in the total project can be placed in the card placement seat 2, so as to classify the drawings more finely and facilitate the search of drawings. The user can select an appropriate number of storage racks 1 according to the storage quantity of the drawings, so as to better classify and preserve the drawings. When installing between multiple storage racks 1, the engaging seat 26 can be engaged with the inside of the card slot 2. At this time, the inclined surface of the card block 25 is squeezed and slides into the telescopic cavity. At the same time, the spring 1 is in an elastic contraction state. When the engaging seat 26 is engaged and slid to the appropriate position, the card block 25 is not squeezed by external force. The elastic potential energy of the spring 1 will make the card block 25 slide and engage in the limiting card slot 1 3, so as to complete the splicing of multiple storage racks 1. The drawings can be placed inside the storage cabinet 7, so as to store the drawings in different ways. When storing the drawings, , and the drawings have different sizes and different heights after being wound, and the drawings with lower heights are not convenient to take. At this time, the push rod 23 can be pressed, so that the push rod 23 drives the slide plate to squeeze the spring 2, and the insertion rod 22 will be separated from the limiting card slot 21 and slide into the movable cavity. At this time, the rotating block 24 is rotated, and the rotating rod drives the rotating drum 19 to rotate. At the same time, the rotating rotating drum 19 drives the screw 17 and the mounting block 18 to rotate through the rotating rod, and the rotating screw 17 and the slider 2 threadedly connected to it can drive the movable plate 12 to place the cylinder groove 1 0, the sliding movable plate 12 can push out the drawings placed in the placement barrel groove 10, making it convenient to take the drawings. Similarly, rotating the rotating block 24 in the opposite direction can make the movable plate 12 slide to the bottom end of the placement barrel groove 10 for convenient storage of the drawings again. When the movable plate 12 slides to a suitable position, the push rod 23 can be released. At this time, the elastic potential energy of the second spring can make the insertion rod 22 pass through the bottom end of the rotating cylinder 19 and fit into the second limiting slot 21 at a suitable position, thereby limiting the rotating rotating cylinder 19 and the rotating screw 17 at the same time.

Claims

1. A drawing storage rack, characterized in that: The storage rack (1) comprises a storage cavity (4) on one side of the storage rack (1), and the inner walls on both sides of the storage cavity (4) are provided with a slide groove (8), a sliding connection slide bar (8) is embedded in the slide groove (8), the slide bar (1) is fixedly installed on both sides of the storage rack (5), and the storage rack (5) is slidably installed in the storage cavity (4), a plurality of storage tube grooves (10) are opened through the inside of the storage rack (5), and the top ends of the storage tube grooves (10) all pass through the top end of the storage rack (5), a plurality of connecting tubes (16) are fixedly installed at the top end of the storage rack (5), and the connecting tubes (16) are fixedly installed at the top end of the storage rack (5). 16) is correspondingly arranged at the top end of the placement barrel groove (10), and a movable plate (12) is slidably arranged inside the placement barrel groove (10), and the movable plate (12) is connected to the pushing component (13), a card slot (2) is opened on one side of the top end of the storage rack (1), and a limiting card slot (3) is penetrated through the inner wall of one side of the card slot (2), and the limiting card slot (3) is connected to the splicing component (14), and the splicing component (14) is arranged in the embedded seat (26), and the embedded seat (26) is embedded in the card slot (2), and the embedded seat (26) is fixedly arranged on one side of the bottom end of the storage rack (1).

2. A drawing storage rack according to claim 1, characterized in that: The splicing assembly (14) is composed of a clamping block (25) and a spring. A telescopic cavity is provided inside the engaging seat (26), and a clamping block (25) is slidably installed in the telescopic cavity. One end of the clamping block (25) passes through one side of the engaging seat (26) and is slidably connected thereto. An inclined surface is arranged below one end of the clamping block (25). A spring is fixedly installed on the inner wall of one end of the telescopic cavity, and one end of the spring is fixedly connected to the other end of the clamping block (25). One end of the clamping block (25) is engaged and connected to a limiting clamping groove (3).

3. The drawing storage rack according to claim 1, characterized in that: Two groups of storage slots are provided on one side of the bottom end of the storage rack (1), and two slide slots (9) are provided on the inner walls of both sides of the storage slots, and two slide bars (9) are slidably mounted inside the two slide slots, and the two slide bars are fixedly mounted on both sides of the storage cabinet (7), and the storage cabinet (7) is slidably mounted in the storage slots.

4. A drawing storage rack according to claim 3, characterized in that: A card placement seat is fixedly mounted on one side of the storage cabinet (7).

5. The drawing storage rack according to claim 1, characterized in that: Three sets of card placement seats (15) are arranged on one side of the placement rack (5).

6. The drawing storage rack according to claim 1, characterized in that: The outer side of the connecting tube (16) is sleeved with a mounting cover (11), and a serial number is arranged on the top of the mounting cover (11). A second card placement seat is arranged on one side of the top of the mounting cover (11).

7. The drawing storage rack according to claim 1, characterized in that: The pushing assembly (13) is composed of a screw rod (17), a mounting block (18), a rotating cylinder (19), a rotating groove (20), a second limiting groove (21), an insert rod (22), a push rod (23), and a rotating block (24). The inner walls of both sides of the placing cylinder groove (10) are provided with movable grooves, and the screw rod (17) and the guide rod are respectively installed in the movable grooves. The outer side of the guide rod is sleeved and slidably installed with a slider 1, and the slider 1 is fixedly installed on one side of the movable plate (12), and the other side of the movable plate (12) is A second slider is fixedly installed, and the second slider is sleeved and installed on the outside of the screw rod (17) and is threadedly connected thereto. The bottom end of the screw rod (17) passes through the first installation cavity, and a mounting block (18) is fixedly installed on the bottom end of the screw rod (17). A rotating rod is fixedly installed on the bottom end of the mounting block (18), and the rotating rod passes through the rotating groove (20). The first installation cavity and the rotating groove (20) are opened inside the bottom end of the placement frame (5). The rotating rod is fixedly connected to the top end of the rotating drum (19), and the top end of the rotating drum (19) is rotatably connected to the rotating groove. The top of the rotating drum (20) is fixedly provided with a rotating rod at the bottom of the rotating drum (19), and the rotating rod passes through the top of the through hole (6) and is rotatably connected thereto. The through hole (6) is opened through the bottom of the placing frame (5), and a rotating block (24) is fixedly provided at the bottom of the rotating rod. An insert rod (22) is movably provided inside the connection between the rotating block (24) and the rotating rod, and one end of the insert rod (22) passes through the center of the bottom end of the rotating drum (19) and is movably connected thereto, and one end of the insert rod (22) is fixedly connected to the bottom of the rotating drum (19). A slide plate is connected, the slide plate is slidably arranged in the movable cavity, the movable cavity is opened inside the rotating drum (19), and a spring 2 is fixedly arranged in the movable cavity, one end of the spring 2 is fixedly connected to one side of the slide plate, and an insertion rod (22) is arranged at the opposite position of the other side of the slide plate, and one end of the insertion rod (22) passes through the bottom end of the rotating drum (19) and is slidably connected thereto, and a plurality of limiting grooves 2 (21) are equidistantly opened around the bottom end of the rotating groove (20), and the limiting grooves 2 (21) are engaged with the insertion rod (22).