CN210647676U - Lead to mark fume chamber - Google Patents

Abstract

The utility model relates to a through-mark ventilation cabinet, four upright posts are arranged on a cabinet body, a mounting plate is arranged between two adjacent upright posts, and the mounting plate is used as the outer wall and the inner wall of the cabinet body; install the inside lining on the mounting panel, the inside lining is the board type, and the inside lining is also installed on two adjacent stands, and is connected for sliding with being connected between the stand moreover. The utility model discloses have the effect that lets the inside lining dismantle more easily.

Description

Lead to mark fume chamber

Technical Field

The utility model belongs to the technical field of the technique of the cabinet body and specifically relates to a lead to mark fume chamber is related to.

Background

At present, the most important function of the cabinet body is the exhaust function, in a chemical laboratory, various harmful gases, odor, moisture and flammable, explosive and corrosive substances are generated during experimental operation, in order to protect the safety of a user and prevent the pollutants in the experiment from diffusing to the laboratory, the cabinet body is required to be used near a pollution source, in recent years, in view of improving the experimental environment, the experiment carried out on a laboratory bench is gradually transferred into the cabinet body, and along with the rapid development of scientific technology, the cabinet body for the experiment is also technically improved.

Chinese patent with publication number CN205362183U discloses a lining structure of cabinet, which comprises a cabinet body, wherein a top lining plate is arranged at the top of the cabinet body, a rear lining plate is arranged at the rear part, a left lining plate is arranged at the left side, a right lining plate is arranged at the right side, the top lining plate, the rear lining plate, the right lining plate and the left lining plate are connected into a whole and made of ceramics, and gaps are arranged between the top lining plate, the rear lining plate, the right lining plate and the left lining plate and the inner wall of the cabinet body. The cabinet body adopts the ceramic lining plate, has the characteristics of hard texture, excellent toughness and strength and strong wind erosion resistance, can resist the corrosion of conventional acid, alkali, salt, various oils and solvents in the experimental process, and improves the safety and the service life of the cabinet body.

The above prior art solutions have the following drawbacks: the existing inner lining is mostly fixedly connected to the inner wall of the cabinet body by screws. However, in actual use, the lining sometimes needs to be removed to replace the lining, so as to ensure that the surface of the lining is intact and not corroded by the reagent gas. However, in practical use, the screw needs to be removed each time the lining is disassembled, and when the number of times of disassembly and assembly is large, the structure of the threaded connection is easy to damage.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing a lead to mark fume chamber, through being connected between inside lining and the internal wall of cabinet and setting up to the mosaic structure that slides, need not use the screw also can be in the same place inside lining and inner wall installation to when dismantling, let the inside lining dismantle more easily.

The above utility model discloses an above-mentioned utility model purpose can realize through following technical scheme:

a ventilation cabinet with a through mark is characterized in that a cabinet body is provided with four upright posts, an installation plate is arranged between every two adjacent upright posts, and the installation plates are used as the outer wall and the inner wall of the cabinet body;

install the inside lining on the mounting panel, the inside lining is the board type, and the inside lining is also installed on two adjacent stands, and is connected for sliding with being connected between the stand moreover.

Through adopting above-mentioned technical scheme, be connected between inside lining and the stand and set up to sliding connection, need not use the screw also can be in the same place inside lining and inner wall installation to when dismantling, let the inside lining dismantle more easily.

The utility model discloses further set up to: the upright post is provided with a baffle arranged along the length direction of the upright post, and the upright post is provided with a pressing plate arranged in parallel with the baffle;

when the inner lining is arranged between the two upright posts, two sides of the inner lining are arranged between the baffle plate and the pressing plate.

Through adopting above-mentioned technical scheme, the clamp plate forms the spout that supplies the inside lining to slide with the baffle, lets the inside lining link together with the stand slides more easily.

The utility model discloses further set up to: the inner liner is convexly provided with an inserting strip, and the inserting strip extends along the inner liner;

when the lining and the upright post are installed together, the insert is embedded between the baffle and the pressure plate.

Through adopting above-mentioned technical scheme, when the inside lining is connected together with baffle and clamp plate, the inside lining aligns with baffle and clamp plate surface for when the inside lining is installed on the stand, the inside lining is more parallel and level with the junction of baffle and clamp plate.

The utility model discloses further set up to: the pressure plate is detachably connected with the upright post.

Through adopting above-mentioned technical scheme, when taking out the inside lining, need not demolish whole cabinet body just can directly take out the inside lining.

The utility model discloses further set up to: the pressing plate is fixedly connected with an arrangement strip, and the length of the arrangement strip is the same as that of the pressing plate; arranging grooves for accommodating the arranging strips are arranged on the upright posts, and the arranging strips are arranged in the arranging grooves and are connected with the arranging grooves in a matching way; and when the arrangement strips are installed on the upright posts, the arrangement strips on the two upright posts are oppositely arranged.

Through adopting above-mentioned technical scheme, when will arranging the strip and install on the stand, the strip mutual disposition of arranging on two stands, two arrange the strip moreover and can receive the operating panel's on the cabinet body restriction, prevent to arrange the strip and deviate from the stand.

When dismantling the inside lining, only need take off operating panel, remove operating panel to the restriction of arranging the strip for the staff can be convenient will arrange the strip and take off from the stand together with the clamp plate, remove the restriction to the inside lining, thereby convenient and fast dismantles the inside lining.

The utility model discloses further set up to: the surface of the upright post, which is in contact with the pressure plate, is provided with a plurality of jacks which are arranged at equal intervals along the length direction of the upright post, and the jacks are strip-shaped holes;

a plurality of inserting plates are convexly arranged on the pressing plate, and the inserting plates are inserted into the inserting holes when the pressing plate is arranged on the upright post;

the plug board is also provided with a limiting component for limiting the plug board to be separated from the jack; the upright post is of a hollow structure.

Through adopting above-mentioned technical scheme, when installing the inside lining on the stand, the staff is with inside lining and baffle contact together earlier, then installs the clamp plate on the stand, lets clamp plate and baffle with the inside lining centre gripping on the stand, when taking off the inside lining, takes off the clamp plate from the stand, is taking off the inside lining.

When the pressing plate is installed on the stand column, workers align the inserting plate on the pressing plate with the inserting hole in the stand column, then insert the inserting plate into the inserting hole, install the pressing plate on the stand column, and then limit the pressing plate and the stand column to be separated.

The utility model discloses further set up to: the limiting assembly comprises a cavity arranged in the inserting plate, and the cavity extends into the pressing plate; the two sides of the plug board are provided with through holes communicated with the cavity; two stop blocks are arranged in the cavity; the two stop blocks penetrate out of the cavity along the through hole; a push plate for pushing the two stop blocks is arranged in the cavity, and one end of the push plate is fixedly connected with a push block; the contact part of the stop block and the push block is an arc surface; the pressing plate and the inserting plate are provided with pushing components for pushing the pushing plate;

a stop block is convexly arranged at the contact part of the stop block and the push block; a first return spring is fixedly connected between the block and the inner wall of the cavity.

Through adopting above-mentioned technical scheme, the staff operates the promotion subassembly, lets the push pedal of promotion subassembly in to the cavity promote, and the push pedal drives the ejector pad and gos forward, releases the dog in the cavity, with the inner wall contact of stand, lets the picture peg joint on the stand to let stand and clamp plate link together. When taking off the clamp plate, the staff operates the promotion subassembly once more, removes the operation to the push pedal, lets the baffle get back to in the cavity under the effect of first return spring to the joint of contact picture peg and stand, then takes off the clamp plate from the stand.

The utility model discloses further set up to: and a second return spring is arranged between the push block and the inner wall of the cavity.

Through adopting above-mentioned technical scheme, the return of push pedal can be promoted to the second answer spring.

The utility model discloses further set up to: the pushing assembly comprises a circular mounting groove formed in the cavity, a long strip-shaped rotating plate is arranged in the mounting groove, the surfaces of two ends of the rotating plate are cambered surfaces, a connecting groove is formed in the circle center of the mounting groove, a rotating rod penetrates through the center of the rotating plate, and a convex strip arranged along the length direction of the rotating rod is formed in the rotating rod;

a connecting hole is formed in the surface, opposite to the mounting groove, of the cavity, a connecting column extending along the length direction of the rotating rod is convexly arranged on the rotating rod, and the connecting column penetrates into the connecting hole when the rotating rod is arranged in the cavity; an expansion spring is arranged in the mounting groove, one end of the expansion spring is fixedly connected with the bottom of the mounting groove, and the other end of the expansion spring is fixedly connected to the rotating rod; a groove for accommodating one end of the convex strip is further formed at the position of the connecting hole opened in the cavity.

Through adopting above-mentioned technical scheme, when operating the promotion subassembly, the staff rotates the bull stick, the bull stick drives and changes the board and take place to rotate in the mounting groove, change the board and promote the push pedal when rotating, and after changeing the board and releasing the push pedal, during the sand grip embedding recess on the bull stick, and push the recess by the expanding spring who arranges in the spread groove in addition, the sand grip can restrict the rotation of bull stick in being in the recess, thereby the rotation of restriction commentaries on classics board keeps changeing the promotion of board to the push pedal. When relieving the promotion of commentaries on classics board to the push pedal, the staff promotes the connecting rod, lets the sand grip on the connecting rod deviate from the recess to compress expanding spring, then rotate the connecting rod, when changeing the dog and getting back to the position department in the cavity, loosen the promotion to the connecting plate, sand grip on the connecting rod contacts with the cavity inner wall under expanding spring's effect. Wherein, when rotating the connecting rod, a connecting column is needed to drive the rotation.

The utility model discloses further set up to: two limiting blocks used for limiting the push plate are arranged in the cavity, and the two limiting blocks are arranged on two sides of the push plate.

Through adopting above-mentioned technical scheme, two restriction pieces are arranged in the both sides of push pedal, restrict the removal of the left and right directions of push pedal, and the face that will restrict piece and push pedal contact sets up to the plane in addition, lets the push pedal can receive the restriction of parallel and level direction.

To sum up, the utility model discloses a beneficial technological effect does:

1. the lining and the inner wall can be installed together without using screws by arranging the connection between the lining and the upright post as sliding connection, so that the lining is easier to disassemble when disassembling;

2. the pressure plate is detachably connected with the upright column, so that a worker can easily detach the lining from the upright column;

3. through setting up the restriction subassembly, let the connection between clamp plate and the stand more firm.

Drawings

Fig. 1 is a schematic view of a cabinet in embodiment 1;

FIG. 2 is a schematic view showing the connection of the columns with the mounting plate and the lining in example 1;

FIG. 3 is a schematic view showing the joining of the inner liner and the mounting plate in accordance with example 1;

FIG. 4 is a schematic view showing a detachable connection of a bead and a pillar in embodiment 1;

FIG. 5 is a schematic view of embodiment 1 with the operation panel removed;

FIG. 6 is a schematic view of an operation panel in embodiment 1;

FIG. 7 is an exploded view of the column of example 2, together with the mounting plate and the lining;

FIG. 8 is an enlarged view of portion A of FIG. 7;

FIG. 9 is an enlarged view of portion B of FIG. 7;

FIG. 10 is a schematic view showing a restriction member provided on a platen in example 2;

FIG. 11 is a schematic structural view of a restricting member in embodiment 2;

FIG. 12 is a schematic view showing the restricting member and the urging member in driving engagement in example 2;

fig. 13 is a schematic structural view at an interposer in embodiment 2.

In the figure, 1, a column; 2. mounting a plate; 3. a cabinet body; 4. a liner; 41. cutting; 5. a baffle plate; 6. pressing a plate; 7. arranging strips; 8. arranging a slot; 9. a jack; 10. inserting plates; 11. a restraining component; 111. a cavity; 112. perforating; 113. a stopper; 114. pushing the plate; 115. a push block; 116. a limiting block; 117. blocking; 118. a first return spring; 119. a second return spring; 12. a pushing assembly; 121. mounting grooves; 122. rotating the plate; 123. connecting grooves; 124. a rotating rod; 125. a convex strip; 126. connecting holes; 127. a tension spring; 128. a groove; 129. connecting columns; 13. an operation panel; 14. a threaded hole; 15. a threaded post; 16. and (6) accommodating the tank.

Detailed Description

The present invention will be described in further detail with reference to the accompanying drawings.

Example 1: as shown in fig. 1 and 2, for the utility model discloses a lead to mark fume chamber is provided with four stands 1 on the cabinet body 3, installs mounting panel 2 between two adjacent stands 1, uses mounting panel 2 to come outer wall and inner wall as the cabinet body 3. And a top plate is arranged on the cabinet body 3, and the top plate is detachably connected with the upright post 1. Wherein, the cabinet body 3 is reserved with a position for installing the cabinet door.

The mounting plate 2 is provided with a lining 4, the lining 4 is in a plate shape, the lining 4 is also arranged on two adjacent upright posts 1, and the connection between the lining 4 and the upright posts 1 is sliding connection. The lining 4 is connected with the mounting plate 2 under the action of the upright 1.

Referring to fig. 3 and 4, a baffle 5 is provided on the column 1 along the length of the column 1, and a pressing plate 6 is provided on the column 1 in parallel with the baffle 5.

When the liner 4 is arranged between the two columns 1, both sides of the liner 4 are arranged between the baffle 5 and the pressing plate 6. Wherein, the insert 41 may be provided on the liner 4 in a protruding manner, the insert 41 extends along the liner 4, the thickness of the insert 41 is smaller than that of the liner 4, when the liner 4 and the upright post 1 are installed together, the insert 41 is embedded between the baffle 5 and the pressing plate 6, the sum of the thicknesses of the insert 41, the baffle 5 and the pressing plate 6 is the same as that of the liner 4, and the widths and lengths of the insert 41, the baffle 5 and the pressing plate 6 are the same. When liner 4 is attached to baffle 5 and clamp plate 6, liner 4 is surface aligned with baffle 5 and clamp plate 6 so that liner 4 is more flush with the junction of baffle 5 and clamp plate 6 when liner 4 is installed on column 1.

The surface of the pressing plate 6 is flush with the surface of the upright post 1, so that the upright post 1 has better concealment when the lining 4 is installed on the upright post 1.

In order to facilitate removal of liner 4 from between baffle 5 and pressure plate 6, the connection between pressure plate 6 and upright 1 is provided as a detachable connection.

An arrangement strip 7 is fixedly connected to the pressure plate 6. An arrangement groove 8 for accommodating the arrangement strip 7 is arranged on the upright post 1, and the arrangement strip 7 is arranged in the arrangement groove 8 and connected with the arrangement groove 8 in a sliding fit manner.

When the arrangement strips 7 are installed on the upright posts 1, the arrangement strips 7 on the two upright posts 1 are oppositely arranged, and the two arrangement strips 7 are limited by the operation panel 13 on the cabinet body 3, so that the arrangement strips 7 are prevented from being separated from the upright posts 1.

When dismantling inside lining 4, only need take off operating panel 13, remove operating panel 13 to the restriction of arranging strip 7 for the staff can be convenient will arrange strip 7 and take off from stand 1 together with clamp plate 6, remove the restriction to inside lining 4, thereby convenient and fast dismantles inside lining 4.

Referring to fig. 5 and 6, the operation panel 13 is detachably connected to the lining 4, a plurality of threaded holes 14 are formed in the lining 4, threaded pillars 15 connected with the threaded holes 14 in a threaded manner penetrate through the threaded holes 14, and the operation panel 13 is lapped on the threaded pillars 15. In order to enable the operation panel 13 and the threaded support post 15 to be connected together, the arrangement of the operation panel 13 can be more stable, an accommodating groove 16 for accommodating the threaded support post 15 is formed in the position, in contact with the threaded support post 15, of the operation panel 13, when the operation panel 13 is lapped on the threaded support post 15, the threaded support post 15 is embedded into the accommodating groove 16 formed in the operation panel 13, the translation of the operation panel 13 is limited, and the arrangement firmness of the operation panel 13 is improved. Wherein, the lining 4 and the operation panel 13 are made of enameled steel plates.

Example 2: the embodiment of the ventilation cabinet with the ventilation opening is different from the embodiment 1 in that in order to further take down a pressing plate 6 from an upright post 1, referring to fig. 7 and 8, a plurality of insertion holes 9 are formed in a surface, in contact with the pressing plate 6, of the upright post 1, the insertion holes 9 are arranged at equal intervals in the length direction of the upright post 1, the insertion holes 9 are strip-shaped holes, and the length direction of the insertion holes 9 is the same as the length direction of the upright post 1.

Referring to fig. 7 and 9, a plurality of insert plates 10 are protrudingly provided on the pressing plate 6, the shape and size of the insert plates 10 are the same as those of the insertion holes 9, and the insert plates 10 are inserted into the insertion holes 9 when the pressing plate 6 is disposed on the column 1. A limiting component 11 for limiting the insertion board 10 from falling out of the insertion hole 9 is also arranged on the insertion board 10. The upright post 1 is of a hollow structure.

Referring to fig. 10, 11, the restraint assembly 11 includes a cavity 111 open to the interior of the insert plate 10, the cavity 111 extending into the pressure plate 6. Through holes 112 communicated with the cavity 111 are formed in two sides of the inserting plate 10, and the two through holes 112 are arranged along a straight line. Two stops 113 are arranged in the cavity 111, the stops 113 being arranged in the cavity 111, and the two stops 113 also being arranged along a line, the two stops 113 being able to pass out along the perforation 112 in the cavity 111. When the two stoppers 113 are completely located in the cavity 111, a gap exists between the two stoppers 113.

Referring to fig. 11 and 12, a push plate 114 for pushing the two stoppers 113 is disposed in the cavity 111, and a push block 115 is fixedly connected to one end of the push plate 114. When the two stoppers 113 are completely positioned in the cavity 111, the push block 115 is in contact with the two stoppers 113, the contact part of the stoppers 113 and the push block 115 is a circular arc surface, the distance between the two stoppers 113 is smaller than the length of the push block 115, and when the push block 115 is positioned between the two stoppers 113, the two stoppers 113 penetrate through the through hole 112.

When the inserting plate 10 is inserted into the inserting hole 9 and the stop block 113 on the inserting plate 10 penetrates out of the inserting plate 10, the baffle plate 5 is contacted with the inner wall of the upright post 1, so that the inserting plate 10 is clamped with the upright post 1, and the connection between the upright post 1 and the pressing plate 6 is completed.

Referring to fig. 12 and 13, a pushing assembly 12 for pushing the pushing plate 114 is disposed on the pressing plate 6 and the inserting plate 10, the pushing assembly 12 includes a circular mounting groove 121 disposed in the cavity 111, a strip-shaped rotating plate 122 is disposed in the mounting groove 121, faces at two ends of the rotating plate 122 are arc faces, a connecting groove 123 is disposed at a center of the mounting groove 121, a rotating rod 124 is disposed at a center of the rotating plate 122 in a penetrating manner, a protruding strip 125 disposed along a length direction of the rotating rod 124 is disposed on the rotating rod 124, and a length of the protruding strip 125 is the same as a length of the rotating rod 124. A connecting hole 126 is formed in the cavity 111 on the surface opposite to the mounting groove 121, a connecting column 129 extending along the length direction of the rotating rod 124 is convexly arranged on the rotating rod 124, and when the rotating rod 124 is arranged in the cavity 111, the connecting column 129 penetrates into the connecting hole 126. An expansion spring 127 is arranged in the mounting groove 121, one end of the expansion spring 127 is fixedly connected with the groove bottom of the mounting groove 121, and the other end of the expansion spring 127 is fixedly connected to the rotating rod 124. A groove 128 for receiving one end of the protruding strip 125 is further opened at a position where the connection hole 126 is opened in the cavity 111.

The length of the rotating plate 122 is the same as the diameter of the mounting groove 121, so that when the rotating plate 122 is disposed in the mounting groove 121, the rotating plate 122 cannot slide in the mounting groove 121. The thickness of the rotating plate 122 is set to the sum of the height of the cavity 111 and the depth of the mounting groove 121, so that the two sides of the rotating plate 122 are respectively in contact with the bottom of the mounting groove 121 and the inner wall of the cavity 111, and the jumping of the rotating plate 122 is limited.

One side of the push plate 114, which is far away from the push block 115, penetrates into the mounting groove 121, and when the rotating plate 122 rotates, one end of the push plate 114, which is located at the position of the mounting groove 121, can be pushed. In order to prevent the push plate 114 from moving along the length direction when the rotary plate 122 pushes the push plate 114, two limiting blocks 116 for limiting the push plate 114 are arranged in the cavity 111, the two limiting blocks 116 are arranged on two sides of the push plate 114 to limit the left and right movement of the push plate 114, and the surface of the limiting blocks 116 contacting the push plate 114 is set to be a plane, so that the push plate 114 can receive limitation in a flush direction.

In order to prevent the stopper 113 from completely falling out of the cavity 111, referring to fig. 9 and 10, a stopper 117 is protruded from the stopper 113 at a position contacting with the push block 115, and when the stopper 113 is to completely fall out of the cavity 111, the stopper 117 contacts with the inner wall of the cavity 111 to restrict the stopper 113 from completely falling out of the through hole 112. A first return spring 118 is fixedly connected between the stopper 117 and the inner wall of the cavity 111, and when the pushing block 115 is completely located in the cavity 111, the first return spring 118 is in a balanced state, so that when the pushing block 115 pushes the stopper 113, the first return spring 118 is compressed, and when the pushing block 115 releases the pushing of the stopper 113, the first return spring 118 returns to push the stopper 113 back into the cavity 111.

A second return spring 119 is arranged between the pushing block 115 and the inner wall of the cavity 111, and two ends of the second return spring 119 are fixedly connected with the pushing block 115 and the inner wall of the cavity 111 respectively. The second return spring 119 is in equilibrium when the push plate 114 is not being pushed by the rotating plate 122. When the rotating plate 122 releases the pushing of the pushing plate 114, the second return spring 119 can push away the pushing block 115, so that the pushing plate 114 returns to the mounting groove 121 for the next use.

Wherein, the first return spring 118 and the second return spring 119 are fixedly connected with the side wall of the cavity 111.

When installing inside lining 4 on stand 1, the staff is earlier with inside lining 4 and baffle 5 contact together, then installs clamp plate 6 on stand 1, lets clamp plate 6 and baffle 5 centre gripping inside lining 4 on stand 1, when taking off inside lining 4, takes off clamp plate 6 from stand 1, takes off inside lining 4.

When the pressing plate 6 is installed on the upright post 1, a worker aligns the inserting plate 10 on the pressing plate 6 with the inserting hole 9 on the upright post 1, then inserts the inserting plate 10 into the inserting hole 9, installs the pressing plate 6 on the upright post 1, and then performs work of limiting the separation of the pressing plate 6 from the upright post 1 on the pressing plate 6. The staff operates pushing assembly 12, lets pushing assembly 12 promote push pedal 114 in cavity 111, and push pedal 114 drives ejector pad 115 and gos forward, pushes out the dog 113 in cavity 111, and with the inner wall contact of stand 1, let picture peg 10 joint on stand 1 to let stand 1 link together with clamp plate 6. When the pressure plate 6 is removed, the worker operates the pushing assembly 12 again, releases the operation of the pushing plate 114, allows the baffle 5 to return to the cavity 111 under the action of the first return spring, so as to contact the insert plate 10 to be clamped with the upright 1, and then removes the pressure plate 6 from the upright 1.

When the pushing assembly 12 is operated, a worker rotates the rotating rod 124, the rotating rod 124 drives the rotating plate 122 to rotate in the mounting groove 121, the rotating plate 122 pushes the pushing plate 114 when rotating, and after the rotating plate 122 pushes the pushing plate 114 out, the convex strip 125 on the rotating rod 124 is embedded in the groove 128 and pushed into the groove 128 by the telescopic spring 127 arranged in the connecting groove 123, the convex strip 125 is positioned in the groove 128 and can limit the rotation of the rotating rod 124, so that the rotation of the rotating plate 122 is limited, and the pushing of the pushing plate 114 by the rotating plate 122 is maintained. When the pushing plate 114 is released from the pushing of the rotating plate 122, the staff pushes the connecting rod to make the convex strip 125 on the connecting rod come out from the groove 128 and compress the expansion spring 127, then the connecting rod is rotated to the position where the stop 113 returns to the cavity 111, the pushing on the connecting plate is released, and the convex strip 125 on the connecting rod is contacted with the inner wall of the cavity 111 under the action of the expansion spring 127. Wherein, when the connecting rod is rotated, the connecting column 129 is required to drive the rotation.

In order to facilitate screwing of the connecting column 129 and enable the connecting column 129 to have better concealment, the connecting column 129 is embedded into the connecting hole 126, and a cross-shaped groove is formed in the end face of the connecting column 129, so that a worker can penetrate into the connecting column 129 with a screwdriver to screw the connecting column 129.

The embodiment of this specific implementation mode is the preferred embodiment of the present invention, not limit according to this the utility model discloses a protection scope, so: all equivalent changes made according to the structure, shape and principle of the utility model are covered within the protection scope of the utility model.

Claims (10)

1. The utility model provides a lead to mark fume chamber which characterized in that: four upright posts (1) are arranged on the cabinet body (3), an installation plate (2) is arranged between every two adjacent upright posts (1), and the installation plate (2) is used as the outer wall and the inner wall of the cabinet body (3);

the inner lining (4) is installed on the installation plate (2), the inner lining (4) is of a plate type, the inner lining (4) is also installed on the two adjacent upright columns (1), and the inner lining is connected with the upright columns (1) in a sliding mode.

2. A ventilation cabinet according to claim 1, characterized in that: the upright post (1) is provided with a baffle (5) arranged along the length direction of the upright post (1), and the upright post (1) is provided with a pressing plate (6) arranged in parallel with the baffle (5);

when the inner lining (4) is arranged between the two upright posts (1), two sides of the inner lining (4) are arranged between the baffle plate (5) and the pressing plate (6).

3. A ventilation cabinet according to claim 2, characterized in that: the inner liner (4) is convexly provided with an inserting strip (41), and the inserting strip (41) extends along the inner liner (4);

when the inner liner (4) and the upright post (1) are installed together, the insert (41) is embedded between the baffle (5) and the pressure plate (6).

4. A ventilation cabinet according to claim 2, characterized in that: the pressure plate (6) is detachably connected with the upright post (1).

5. A ventilation cabinet according to claim 4, characterized in that: the pressing plate (6) is fixedly connected with an arrangement strip (7), and the length of the arrangement strip (7) is the same as that of the pressing plate (6); an arrangement groove (8) for accommodating the arrangement strip (7) is arranged on the upright post (1), and the arrangement strip (7) is arranged in the arrangement groove (8) and is matched and connected with the arrangement groove (8); when the arrangement strips (7) are installed on the upright posts (1), the arrangement strips (7) on the two upright posts (1) are oppositely arranged.

6. A ventilation cabinet according to claim 4, characterized in that: a plurality of jacks (9) which are arranged at equal intervals along the length direction of the upright post (1) are formed in the surface, which is in contact with the pressing plate (6), of the upright post (1), and the jacks (9) are strip-shaped holes;

a plurality of inserting plates (10) are convexly arranged on the pressing plate (6), and when the pressing plate (6) is arranged on the upright post (1), the inserting plates (10) are inserted into the inserting holes (9);

the plug board (10) is also provided with a limiting component (11) for limiting the plug board (10) to be separated from the jack (9); the upright post (1) is of a hollow structure.

7. A ventilation cabinet according to claim 6, characterized in that: the limiting assembly (11) comprises a cavity (111) arranged in the inserting plate (10), and the cavity (111) extends into the pressing plate (6); both sides of the corresponding inserting plate (10) are provided with through holes (112) communicated with the cavity (111); two stoppers (113) are arranged in the cavity (111); the two blocks (113) penetrate out of the cavity (111) along the through hole (112); a push plate (114) used for pushing the two stop blocks (113) is arranged in the cavity (111), and one end of the push plate (114) is fixedly connected with a push block (115); the contact part of the stop block (113) and the push block (115) is an arc surface; a pushing assembly (12) for pushing the pushing plate (114) is arranged on the pressing plate (6) and the inserting plate (10);

a stop block (117) is convexly arranged at the contact part of the stop block (113) and the push block (115); a first return spring (118) is fixedly connected between the block (117) and the inner wall of the cavity (111).

8. A ventilation cabinet according to claim 7, characterized in that: and a second return spring (119) is arranged between the push block (115) and the inner wall of the cavity (111).

9. A ventilation cabinet according to claim 7, characterized in that: the pushing assembly (12) comprises a circular mounting groove (121) formed in the cavity (111), a long strip-shaped rotating plate (122) is arranged in the mounting groove (121), the surfaces at two ends of the rotating plate (122) are cambered surfaces, a connecting groove (123) is formed in the circle center of the mounting groove (121), a rotating rod (124) penetrates through the center of the rotating plate (122), and a protruding strip (125) arranged along the length direction of the rotating rod (124) is formed in the rotating rod (124);

a connecting hole (126) is formed in the surface, opposite to the mounting groove (121), of the cavity (111), a connecting column (129) extending along the length direction of the rotating rod (124) is convexly arranged on the rotating rod (124), and when the rotating rod (124) is arranged in the cavity (111), the connecting column (129) penetrates into the connecting hole (126); an extension spring (127) is arranged in the mounting groove (121), one end of the extension spring (127) is fixedly connected with the groove bottom of the mounting groove (121), and the other end of the extension spring is fixedly connected to the rotating rod (124); a groove (128) used for accommodating one end of the convex strip (125) is further formed in the position where the connecting hole (126) is formed in the cavity (111).

10. A ventilation cabinet according to claim 7, characterized in that: two limiting blocks (116) used for limiting the push plate (114) are arranged in the cavity (111), and the two limiting blocks (116) are arranged on two sides of the push plate (114).

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