CN220043913U - Rebound opening and closing mechanism and equipment dust filtering cabinet - Google Patents

Abstract

The utility model relates to the technical field of equipment storage, in particular to a rebound opening and closing mechanism and an equipment dust filtering cabinet, wherein a lifting assembly comprises a protection shell, a positioning shaft fixedly arranged on the inner wall of a top plate of the protection shell, lifting blocks in sliding connection with the positioning shaft, rotating plates positioned on two sides of the positioning shaft and in rotary connection with the protection shell, and a clamping assembly positioned below the positioning shaft; the clamping assembly comprises a limiting block horizontally sliding along the inner wall of the protection shell, a blocking block arranged on one side of the limiting block and vertically sliding along the inner wall of the protection shell, and a containing assembly. The rebound opening and closing mechanism can be stored in the storage groove, the equipment volume is increased by avoiding the exposure of the handle, the equipment can be stored smoothly, and the storage space is saved. The filter screen structure of the dust filtering cabinet of the equipment filters dust in air exchanged by the ventilation opening, and prevents the dust from entering the inspection instrument through the ventilation opening to cause damage to electronic elements.

Description

Rebound opening and closing mechanism and equipment dust filtering cabinet

Technical Field

The utility model relates to the technical field of equipment storage, in particular to a rebound opening and closing mechanism and an equipment dust filtering cabinet.

Background

The generating set of the hydropower station is also called a 'hydroelectric generating set', and a generating unit formed by combining each water turbine on the hydropower station with a matched generator is a main power device for generating electric energy of the hydropower station, when water flow cited by the hydropower station passes through the water turbine, the water energy is converted into mechanical energy for driving machinery to rotate, the generator converts the mechanical energy into electric energy to be output, a large amount of heat is generated in the running process of the generating set, the normal running and the service life of the generating set are influenced, and professional temperature detection equipment is needed for detecting the position of the generating set corresponding to heat generation.

At present, the existing China patent with the publication number of CN218035387 discloses a multi-path temperature inspection instrument, and solves the problems that in the use process of the multi-path temperature inspection instrument in the prior art, a plurality of connector lugs are required to be inserted into a front panel of the multi-path temperature inspection instrument, and wires on the connector lugs possibly loose touch of a USB flash disk inserted into a data processor interface, so that the USB flash disk cannot store data detected by the multi-path temperature inspection instrument in real time; although the device solves the above-mentioned shortcomings, the device has the following defects: 1. the outer wall of the inspection instrument is a smooth plane, and is inconvenient to move due to the lack of supporting stress points such as handles and operating levers. 2. The patrol instrument is large in size, and the occupied space can be enlarged by singly adding fixed supporting pieces such as a handle and an operating rod, so that the patrol instrument is more inconvenient to store. 3. The inspection instrument is provided with a vent, dust enters the inspection instrument through the vent in the dust-containing environment, and damage to electronic components and poor temperature detection accuracy can be caused for a long time.

What is needed is a detection device that can effectively save space, provide support when equipment needs to be moved, and provide greater dust resistance to meet the current needs.

Disclosure of Invention

This section is intended to outline some aspects of embodiments of the utility model and to briefly introduce some preferred embodiments. Some simplifications or omissions may be made in this section as well as in the description of the utility model and in the title of the utility model, which may not be used to limit the scope of the utility model.

In view of the fact that the existing inspection instrument is large in size, large in occupied space and inconvenient to move due to the fact that the existing inspection instrument lacks supporting stress points.

In order to solve the technical problems, the utility model provides the following technical scheme: the lifting assembly comprises a protection shell, a positioning shaft fixedly arranged on the inner wall of a top plate of the protection shell, a lifting block in sliding connection with the positioning shaft, rotating plates which are positioned on two sides of the positioning shaft and are rotationally connected with the protection shell, and a clamping assembly positioned below the positioning shaft;

the clamping assembly comprises a limiting block horizontally sliding along the inner wall of the protection shell and a blocking block arranged on one side of the limiting block and vertically sliding along the inner wall of the protection shell.

As a preferable mode of the rebound opening and closing mechanism of the present utility model, wherein: the lifting block top is fixedly provided with a tension spring, the other end of the tension spring is fixedly connected with the inner wall of the top plate of the protective shell, the lifting block is fixedly connected with an operating rod, the side plate of the protective shell is fixedly provided with a clamping channel, and the clamping channel is positioned on one side of the limiting block and can allow the limiting block to pass through.

As a preferable mode of the rebound opening and closing mechanism of the present utility model, wherein: the protection casing inner wall is fixed and is provided with the connecting rod, rotatory cover has cup jointed the swivel plate on the connecting rod, swivel plate outer end with the separation piece contact, the fixed operation empty slot that has seted up on the protection casing, the action bars pass the operation empty slot is located the protection casing outer wall.

As a preferable mode of the rebound opening and closing mechanism of the present utility model, wherein: lifting rails are fixedly arranged on two sides of the rotating plate, lifting grooves are fixedly arranged on the surfaces of the blocking blocks, the blocking blocks are in sliding connection with the lifting rails through the lifting grooves, limiting jacking blocks are fixedly arranged on the tops of the lifting rails, and anti-falling protruding blocks are fixedly arranged on the lifting rails.

As a preferable mode of the rebound opening and closing mechanism of the present utility model, wherein: the protection casing inner wall is fixed to be provided with horizontal slide rail, the stopper surface is provided with horizontal groove, the stopper pass through horizontal groove with horizontal slide rail sliding connection, horizontal groove both sides are still fixed to extend has the pull rod that resets, the protection casing surface has still seted up the groove that resets, the pull rod that resets passes the groove that resets is located the protection casing outer wall.

As a preferable mode of the rebound opening and closing mechanism of the present utility model, wherein: the protection casing inner wall is in the fixed resilience base that is provided with between the horizontal slide rail, the last fixed spring that is provided with of resilience base, the spring other end with stopper fixed connection.

As a preferable mode of the rebound opening and closing mechanism of the present utility model, wherein: the connecting groove is fixedly formed in the top plate of the protective shell and fixedly connected with the arc block, and the torsion shaft is fixedly arranged in the arc block.

The rebound opening and closing mechanism has the beneficial effects that: can accomodate to accomodate the inslot portion under the condition that satisfies the normal of patrolling and examining the appearance that carries, avoid the exposed setting of handle to increase the problem of patrolling and examining the appearance volume, make the patrolling and examining the appearance and can smoothly deposit, save storage space.

In view of the fact that the original inspection instrument is provided with the ventilation opening, dust easily enters the inspection instrument through the ventilation opening in the dust environment, and damage to electronic elements can be caused for a long time.

In order to solve the technical problems, the utility model also provides the following technical scheme: the accommodating assembly comprises an outer accommodating shell and a filter screen, wherein the outer accommodating shell is in sliding connection with the outer wall of the protective shell, and the filter screen is movably arranged on the outer accommodating shell.

As a preferred embodiment of the dust filter cabinet of the device of the utility model, the following is adopted: the outer accommodation shell surface fixing is provided with a mounting groove, the mounting groove is connected with the inner side of the filter screen in a clamping mode, an inner groove is formed in the mounting groove, the bottom of the inner groove is fixedly provided with a positive magnet, and the inner wall of the outer accommodation shell is provided with an accommodation clamping groove and a limiting block in a clamping mode.

As a preferred embodiment of the dust filter cabinet of the device of the utility model, the following is adopted: the surface of the filter screen is fixedly provided with a pull groove, a clamping rod fixedly extends from the inner side of the filter screen, and a negative magnet is fixedly arranged at the bottom of the clamping rod.

The dust filtering cabinet of the device has the beneficial effects that: the filter screen structure filters the dust in the air that the vent exchanged, prevents that the dust from getting into the inside problem that causes electronic component damage and temperature monitoring accuracy to be poor of inspection appearance through the vent.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present utility model, the drawings that are needed in the description of the embodiments will be briefly described below, it being obvious that the drawings in the following description are only some embodiments of the present utility model, and that other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art. Wherein:

FIG. 1 is an external schematic view of a rebound opening and closing mechanism according to the present utility model.

Fig. 2 is a schematic front view of the inside of the rebound opening and closing mechanism in the present utility model.

Fig. 3 is a schematic view of the inside rear of the rebound opening and closing mechanism in the present utility model.

FIG. 4 is a schematic diagram showing the cooperation of the dust filtering cabinet and the rebound opening and closing mechanism of the device.

Fig. 5 is an external schematic view of the dust filter cabinet of the device in the utility model.

FIG. 6 is a schematic view of the structure of the hidden filter plate of the dust filter cabinet of the device.

Fig. 7 is a schematic view of a filter plate according to the present utility model.

FIG. 8 is a schematic view showing the cooperation of the clamping rod and the inner groove in the present utility model

Detailed Description

In order that the above-recited objects, features and advantages of the present utility model will become more readily apparent, a more particular description of the utility model will be rendered by reference to specific embodiments thereof which are illustrated in the appended drawings.

In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present utility model, but the present utility model may be practiced in other ways other than those described herein, and persons skilled in the art will readily appreciate that the present utility model is not limited to the specific embodiments disclosed below.

Further, reference herein to "one embodiment" or "an embodiment" means that a particular feature, structure, or characteristic can be included in at least one implementation of the utility model. The appearances of the phrase "in one embodiment" in various places in the specification are not necessarily all referring to the same embodiment, nor are separate or alternative embodiments mutually exclusive of other embodiments.

Further, in describing the embodiments of the present utility model in detail, the cross-sectional view of the device structure is not partially enlarged to a general scale for convenience of description, and the schematic is only an example, which should not limit the scope of protection of the present utility model. In addition, the three-dimensional dimensions of length, width and depth should be included in actual fabrication.

Example 1

Referring to fig. 1 to 3, a first embodiment of the present utility model provides a rebound opening and closing mechanism.

The lifting assembly 100 and the clamping assembly 200 form linkage, the protection shell 101 has the effects of effectively protecting and supporting stress on the whole structure, the positioning shaft 102 is fixedly connected to the inner wall of the top plate of the protection shell 101, the lifting block 103 is coated on the outer wall of the positioning shaft 102 in a sliding manner, and the lifting block 103 can slide along the positioning shaft 102.

The two rotating plates 104 are respectively arranged at two sides of the positioning shaft 102, the rotating plates 104 are rotatably connected with the inner wall of the protective housing 101, and when the lifting block 103 moves along the positioning shaft 102, the two rotating plates 104 can be touched to make clockwise and anticlockwise rotation movements respectively. The clamping assembly 200 is disposed below the positioning shaft 102, the two blocking blocks 202 can slide vertically along the inner wall of the protective housing 101, and the blocking blocks 202 are respectively located on the left side and the right side of the rotating plate 104, so that when the rotating plate 104 is pushed to rotate by the lifting block 103, the rotating plate 104 can act on the blocking blocks 202 to push the blocking blocks 202 to rise.

The limiting block 201 is arranged at the bottom of the inner wall of the protective shell 101, the limiting block 201 can horizontally slide along the inner wall of the protective shell 101, the limiting block 201 is also provided with two limiting blocks which are bilaterally symmetrical, and in a default state, the left side and the right side of the limiting block 201 are blocked and limited by the bottom of the blocking block 202, so that the limiting block 201 is limited at an initial position.

Firstly, the lifting block 103 is pushed to slide along the positioning shaft 102, the lifting block 103 contacts with the two rotating plates 104 in the sliding process, the inner ends of the two rotating plates 104 are pushed by the lifting block 103 to start rotating along the inner wall of the protection shell 101, and the blocking block 202 positioned on the outer side of the rotating plates 104 is pushed to rise in the rotating process.

The bottom of the blocking block 202 is located at one side of the limiting block 201 in a default state, horizontal sliding of the limiting block 201 is blocked, and when the blocking block 202 is pushed by the rotating plate 104 to start to rise, blocking of the limiting block 201 is released, so that horizontal movement can be performed along the inner wall of the protection shell 101. The limiting block 201 enters the clamping groove of the external structure and corresponds to the clamping groove in a clamping manner, the whole protection shell 101 can be clamped and fixed by the limiting block 201 and the external clamping groove and hidden in the external structure, and the limiting block 201 and the external structure are in the same horizontal plane, and the protection shell 101 is in a vertical state in a hidden state, so that the blocking block 202 is always subjected to the action of gravity.

When the protective housing 101 needs to be unscrewed and used as a handle, only the two limiting blocks 201 need to be pushed inwards, and as the limiting blocks 201 can reversely prevent the blocking blocks 202 from sliding in the extending state of the limiting blocks 201, when the two limiting blocks 201 are retracted to the initial position, the sliding space at the bottom ends of the blocking blocks 202 is vacated, and therefore the blocking blocks 202 fall under the action of gravity to block the limiting blocks 201 again. The top end of the protection casing 101 is connected with the external structure through the torsion shaft 101f-2, so that when the limiting block 201 is retracted to the initial position, the clamping between the protection casing 101 and the external structure is released, the protection casing 101 rotates and pops out to be perpendicular to the protection casing 101 under the action of the torsion shaft 101f-2, and the protection casing 101 can serve as a supporting handle to facilitate the operation of a worker to move main equipment.

Example 2

Referring to fig. 1 to 5, a second embodiment of the present utility model is based on the previous embodiment, except that the structure of the clamping assembly 200 is further optimized to the mating structure of the lifting assembly 100.

A tension spring 103a is fixedly arranged at the top end of the lifting block 103, the other end of the tension spring 103a is fixedly connected with the inner wall of the top plate of the protection shell 101, an operating rod 103b is fixedly connected to the lifting block 103, the lifting block 103 can be driven to slide along the positioning shaft 102 by pulling the operating rod 103b, and a pulling force for resetting the lifting block 103 can be generated under the action of the tension spring 103 a. An operation empty slot 101c is fixedly formed in the front plate of the protection shell 101, and the operation rod 103b passes through the operation empty slot 101c and is positioned on the outer wall of the protection shell 101, so that the operation rod 103b can be pulled from the outer wall of the protection shell 101.

The connecting rod 101a is fixedly arranged on the inner wall of the protective shell 101, the connecting rod 101a is positioned on two sides of the positioning shaft 102, the rotating plate 104 is rotatably sleeved on the connecting rod 101a, the rotating plate 104 can rotate along the connecting rod 101a, and when the lifting block 103 moves along the positioning shaft 102, the rotating plate 104 can be pushed to rotate along the connecting rod 101 a. Lifting rails 101b are fixedly arranged on two sides of the rotating plate 104, the lifting rails 101b are located on the inner wall of the protective shell 101, lifting grooves 202a with the same size as the lifting rails 101b are formed in the surfaces of the blocking blocks 202, and the blocking blocks 202 can vertically move along the lifting rails 101b on the inner wall of the protective shell 101. The top end of the lifting track 101b is fixedly provided with a limiting top block 101b-1, the middle section of the lifting track 101b is fixedly extended with an anti-falling bump 101b-2, and the limiting top block 101b-1 and the anti-falling bump 101b-2 can prevent the blocking block 202 from excessively moving to be separated from the lifting track 101b.

The outer end of the rotating plate 104 is in contact with the blocking block 202, and when the rotating plate 104 rotates along the connecting rod 101a, the outer end of the rotating plate 104 can push the blocking block 202 to rise. The horizontal sliding rail 101d is fixedly arranged on the inner wall of the protective shell 101, the horizontal groove 201a is formed in the surface of the limiting block 201, and the size of the horizontal groove 201a corresponds to that of the horizontal sliding rail 101d, so that the limiting block 201 can horizontally slide along the horizontal sliding rail 101d on the inner wall of the protective shell 101, and the limiting block 201 and the horizontal groove 201a are located below the positioning shaft 102 and the blocking block 202. The two sides of the horizontal groove 201a are fixedly extended with reset pull rods 201a-1, the surface of the protective shell 101 is also provided with reset grooves 105, and the reset pull rods 201a-1 penetrate through the reset grooves 105 and are positioned on the outer wall of the protective shell 101.

The bottom ends of the blocking blocks 202 are positioned at the left side and the right side of the limiting block 201 in the initial state, so that the movement route of the limiting block 201 is blocked, and therefore, the limiting block 201 can only be positioned at the tail end of the horizontal sliding rail 101d in the initial state,

a rebound base 101e is fixedly arranged between the horizontal slide rails 101d, the rebound base 101e is fixedly arranged on the inner wall of the protective shell 101, a spring 101e-1 is fixedly arranged on the rebound base 101e, the other end of the spring 101e-1 is fixedly connected with a limiting block 201, the limiting block 201 is blocked at the tail end of the horizontal slide rail 101d by a blocking block 202 in an initial state, the spring 101e-1 is compressed, and the spring 101e-1 is compressed to generate outward elastic force. The side plate of the protective shell 101 is fixedly provided with a clamping channel 101g, and the clamping channel 101g is positioned on one side of the limiting block 201 and can allow the limiting block 201 to pass through.

A connecting groove 101f is fixedly formed in the top plate of the protective shell 101, the connecting groove 101f is fixedly connected with an arc block 101f-1, a torsion shaft 101f-2 is fixedly arranged in the arc block 101f-1, and two ends of the torsion shaft 101f-2 are fixedly connected with an external device structure.

The bottom of the blocking block 202 is located at one side of the limiting block 201 in a default state, horizontal sliding of the limiting block 201 is blocked, the operating rod 103b is pulled to enable the lifting block 103 to slide along the positioning shaft 102, the lifting block 103 pushes the rotating plate 104 to rotate, and when the blocking block 202 is pushed by the rotating plate 104 to start to rise, blocking of the limiting block 201 is released, so that horizontal movement can be carried out along the inner wall of the protection shell 101. The compressed spring 101e-1 pushes the limiting block 201 to pop out, the inner wall of the outer accommodating shell 301 is provided with an accommodating clamping groove 301b, the limiting block 201 enters the accommodating clamping groove 301b to be clamped with the outer accommodating shell 301, the whole protection shell 101 can be clamped and fixed by the limiting block 201 and the outer clamping groove and hidden in an outer structure, and is in the same horizontal plane with the outer structure, and the protection shell 101 is in a vertical state in the hidden state, so that the blocking block 202 is always under the action of gravity, the lifting block 103 is reset under the action of the tension spring 103a, the blocking block 202 descends along the lifting track 101b, and the bottom end of the blocking block 202 can be propped against by the limiting block 201 and cannot return to the original position because the limiting block 201 is popped out.

When the protective housing 101 is required to be unscrewed and used as a handle, the reset pull rod 201a-1 is only required to be operated to drive the two limiting blocks 201 to reset along the horizontal sliding rail 101d, after the limiting blocks 201 enter the tail end of the horizontal sliding rail 101d, the bottom ends of the blocking blocks 202 can return to the initial positions again and block the limiting blocks 201, and because the whole protective housing 101 loses the clamping connection between the limiting blocks 201 and the external structure at this time, the whole protective housing 101 is outwards unscrewed under the action of the torsion shaft 101f-2 under the action of the elastic force of the backlog of the torsion shaft 101f-2 and is vertical to the external structure, and the protective housing 101 can keep a vertical state due to the resistance of the torsion spring existing in the torsion shaft 101f-2, and the protective housing 101 can be used as a supporting handle to facilitate the operation of moving equipment by personnel at this time.

When the accommodating space is tense and the protective shell 101 is required to be retracted, only the protective shell 101 is required to be manually rotated to take the torsion shaft 101f-2 for resisting force, and when the protective shell 101 is completely aligned with an external structure, the operating rod 103b is pulled down, and the lifting block 103 is linked with the limiting block 201 to be ejected out and clamped and fixed with the external structure.

Example 3

Referring to fig. 1 to 8, a third embodiment of the present utility model is based on any one of the above embodiments, and an apparatus dust filter cabinet is added.

The torsion shaft 101f-2 at the top end of the protection casing 101 is fixedly connected with the accommodation component 300, the outer accommodation casing 301 is slidably connected with the outer wall of the protection casing 101, the protection casing 101 is arranged in the accommodation groove of the outer accommodation casing 301, the top surface of the outer accommodation casing 301 is fixedly provided with a rectangular installation groove 301a, four corners of the installation groove 301a are fixedly provided with inner grooves 301a-1 in an extending manner, and the bottom of each inner groove 301a-1 is fixedly provided with a positive magnet 301a-2.

The filter screen 302 is connected with the outer accommodating case 301 through the mounting groove 301a, clamping rods 302b are fixedly arranged at four corners of one side of the filter screen 302 facing the mounting groove 301a, the sizes of the clamping rods 302b are the same as those of the inner grooves 301a-1, and each clamping rod 302b can enter the corresponding inner groove 301a-1. The bottom of each clamping rod 302b is fixedly provided with a negative magnet 302b-1, and after the clamping rods 302b enter the inner groove 301a-1, the negative magnet 302b-1 can attract the positive magnet 301a-2 to play a role in assisting in fixing the filter screen 302. A pull groove 302a is fixedly formed on the surface of the filter screen 302, so that the filter screen 302 can be conveniently detached by means of the pull groove 302 a.

It is important to note that the construction and arrangement of the utility model as shown in the various exemplary embodiments is illustrative only. Although only a few embodiments have been described in detail in this disclosure, those skilled in the art who review this disclosure will readily appreciate that many modifications are possible (e.g., variations in sizes, dimensions, structures, shapes and proportions of the various elements, values of parameters (e.g., temperature, pressure, etc.), mounting arrangements, use of materials, colors, orientations, etc.) without materially departing from the novel teachings and advantages of the subject matter described in this application. For example, elements shown as integrally formed may be constructed of multiple parts or elements, the position of elements may be reversed or otherwise varied, and the nature or number of discrete elements or positions may be altered or varied. Accordingly, all such modifications are intended to be included within the scope of present utility model. The order or sequence of any process or method steps may be varied or re-sequenced according to alternative embodiments. In the claims, any means-plus-function clause is intended to cover the structures described herein as performing the recited function and not only structural equivalents but also equivalent structures. Other substitutions, modifications, changes and omissions may be made in the design, operating conditions and arrangement of the exemplary embodiments without departing from the scope of the present utility models. Therefore, the utility model is not limited to the specific embodiments, but extends to various modifications that nevertheless fall within the scope of the appended claims.

Furthermore, in an effort to provide a concise description of the exemplary embodiments, all features of an actual implementation may not be described (i.e., those not associated with the best mode presently contemplated for carrying out the utility model, or those not associated with practicing the utility model).

It should be appreciated that in the development of any such actual implementation, as in any engineering or design project, numerous implementation-specific decisions may be made. Such a development effort might be complex and time consuming, but would nevertheless be a routine undertaking of design, fabrication, and manufacture for those of ordinary skill having the benefit of this disclosure.

It should be noted that the above embodiments are only for illustrating the technical solution of the present utility model and not for limiting the same, and although the present utility model has been described in detail with reference to the preferred embodiments, it should be understood by those skilled in the art that the technical solution of the present utility model may be modified or substituted without departing from the spirit and scope of the technical solution of the present utility model, which is intended to be covered in the scope of the claims of the present utility model.

Claims (10)

1. A rebound opening and closing mechanism which is characterized in that: comprising the steps of (a) a step of,

the lifting assembly (100) comprises a protection shell (101), a positioning shaft (102) fixedly arranged on the inner wall of a top plate of the protection shell (101), lifting blocks (103) connected with the positioning shaft (102) in a sliding manner, rotating plates (104) which are positioned on two sides of the positioning shaft (102) and are rotationally connected with the protection shell (101), and a clamping assembly (200) positioned below the positioning shaft (102);

the clamping assembly (200) comprises a limiting block (201) horizontally sliding along the inner wall of the protection shell (101), and a blocking block (202) arranged on one side of the limiting block (201) and vertically sliding along the inner wall of the protection shell (101).

2. The rebound opening and closing mechanism of claim 1, wherein: the lifting block (103) is fixedly provided with a tension spring (103 a), the other end of the tension spring (103 a) is fixedly connected with the inner wall of the top plate of the protective housing (101), the lifting block (103) is fixedly connected with an operating rod (103 b), a clamping channel (101 g) is fixedly arranged on the side plate of the protective housing (101), and the clamping channel (101 g) is positioned on one side of the limiting block (201) and can allow the limiting block (201) to pass through.

3. The rebound opening and closing mechanism as set forth in claim 2, wherein: the protection casing (101) inner wall is fixed to be provided with connecting rod (101 a), rotatory cover has cup jointed on connecting rod (101 a) and has been turned round board (104), turn round board (104) outer end with separation piece (202) contact, operation empty slot (101 c) have been seted up to the fixed operation on protection casing (101), operating lever (103 b) pass operation empty slot (101 c) are located protection casing (101) outer wall.

4. A rebound opening and closing mechanism as recited in claim 3, further comprising: lifting rails (101 b) are fixedly arranged on two sides of the rotating plate (104), lifting grooves (202 a) are fixedly arranged on the surfaces of the blocking blocks (202), the blocking blocks (202) are in sliding connection with the lifting rails (101 b) through the lifting grooves (202 a), limiting jacking blocks (101 b-1) are fixedly arranged on the top ends of the lifting rails (101 b), and anti-falling protruding blocks (101 b-2) are fixedly arranged on the lifting rails (101 b).

5. A rebound opening and closing mechanism as claimed in any one of claims 1 to 4 wherein: the protection casing (101) inner wall is fixed to be provided with horizontal slide rail (101 d), stopper (201) surface is provided with horizontal groove (201 a), stopper (201) pass through horizontal groove (201 a) with horizontal slide rail (101 d) sliding connection, horizontal groove (201 a) both sides are still fixed extension have reset pull rod (201 a-1), reset groove (105) have still been seted up on protection casing (101) surface, reset pull rod (201 a-1) pass reset groove (105) are located protection casing (101) outer wall.

6. The rebound opening and closing mechanism as set forth in claim 5, wherein: the protection casing (101) inner wall is in fixed being provided with resilience base (101 e) between horizontal slide rail (101 d), be provided with spring (101 e-1) on resilience base (101 e) fixedly, spring (101 e-1) other end with stopper (201) fixed connection.

7. The rebound opening and closing mechanism as set forth in claim 6, wherein: the connecting groove (101 f) is fixedly formed in the top plate of the protective shell (101), the connecting groove (101 f) is fixedly connected with the arc block (101 f-1), and the torsion shaft (101 f-2) is fixedly arranged in the arc block (101 f-1).

8. The utility model provides a dust filtration cabinet for equipment which characterized in that: comprising the rebound opening and closing mechanism as set forth in claim 7, and,

the accommodating assembly (300) comprises an outer accommodating shell (301) and a filter screen (302), wherein the outer accommodating shell (301) is slidably connected with the outer wall of the protective shell (101), and the filter screen (302) is movably arranged on the outer accommodating shell (301).

9. The equipment dust bin of claim 8, wherein: the outer accommodating shell (301) is fixedly provided with an installing groove (301 a), the installing groove (301 a) is connected with the inner side of the filter screen (302) in a clamping mode, an inner groove (301 a-1) is formed in the installing groove (301 a), the bottom of the inner groove (301 a-1) is fixedly provided with a positive magnet (301 a-2), and the inner wall of the outer accommodating shell (301) is provided with an accommodating clamping groove (301 b) connected with the limiting block (201) in a clamping mode.

10. The equipment dust bin of claim 9, wherein: draw-in grooves (302 a) are fixedly formed in the surface of the filter screen (302), clamping rods (302 b) fixedly extend to the inner side of the filter screen (302), and negative pole magnets (302 b-1) are fixedly mounted at the bottoms of the clamping rods (302 b).