Trunk type universal laboratory detoxification cover

Abstract

The utility model relates to the technical field of detoxification covers, and provides an elephant trunk type universal laboratory detoxification cover which comprises a shell, a hose and a connecting pipe, the top of the shell and one end of the connecting pipe are fixedly connected with fixing rings, fixing devices are arranged in the fixing rings, each fixing device comprises a rotating ring, and the rotating rings are fixedly connected with the hose. The rotating ring is rotationally installed in the fixing ring, four protruding blocks which are evenly distributed in the circumferential direction are welded to the inner wall of the rotating ring, through arrangement of the clamping plates, the rotating ring and other structures, the rotating ring rotates to drive the protrusions and the connecting rods to move, then horizontal movement of the clamping plates is achieved through limitation of the orientation rods, and clamping and fixing of the hose are achieved; according to the technical scheme, the hose can be conveniently installed and detached, the hose can be conveniently replaced after being damaged, more convenient adjustment is achieved through the trunk type hose, and the problems that in the prior art, replacement and cleaning are not convenient are solved.

Description

Technical Field

[0001] The utility model relates to the technical field of detoxification hoods, in particular to an elephant trunk type universal laboratory detoxification hood. Background Art

[0002] At present, the detox hood is a device mainly used to remove indoor pollutants and harmful gases, thereby improving indoor air quality. The detox hood is usually composed of a shell, a filter, a motor and a control system, among which the filter can remove pollutants such as particles, bacteria, viruses and harmful gases in the indoor air.

[0003] The prior art has a patent publication number of CN213378419U, which discloses a universal exhaust hood for a laboratory in the field of the laboratory universal exhaust hood technology, including a support plate, a rotating shaft, a steering gear, a rack, an electric push rod, a first exhaust duct, a first hinge bolt, a first air guide hose, a second air guide hose and an exhaust hood. These components work together to adjust the outlet direction of the exhaust hood in real time according to actual needs, and can also adjust the lengths of the first, second and third exhaust ducts, thereby enhancing the adaptability of the exhaust.

[0004] However, the patent uses multiple air ducts and multiple hinged bolts to adjust the exhaust hood. The use cost of multiple air ducts and multiple hinged bolts is high, and it is inconvenient to replace the air duct when it is damaged. When adjusting in different directions, the hinged mechanization is also used, and the adjustment cannot be more convenient.

[0005] The prior art has a patent publication number of CN206334935U, which discloses a universal vacuum hood for a liftable laboratory, including a universal vacuum hood body, a mounting rod, an electric telescopic rod, a horizontal pipe, a vertical pipe, a vacuum hose, a temperature sensor, a control panel, a soft base and a lighting lamp, which together realize the function of convenient lifting and lowering, and have a temperature reminder function. In addition, under certain circumstances, the device can also provide lighting for the experimental work platform;

[0006] However, this patent realizes adjustment through a crossbar and a vertical tube and realizes installation through a connecting piece. If the crossbar and the vertical tube are damaged, it is inconvenient to replace them. Utility Model Content

[0007] The utility model provides an elephant trunk type universal laboratory detoxification hood, which solves the problems of inconvenient replacement and cleaning in the related technology.

[0008] The technical solution of the utility model is as follows: an elephant trunk type universal laboratory detoxification hood, comprising a shell, a hose and a connecting pipe, the top of the shell and one end of the connecting pipe are fixedly connected with a fixing ring, and a fixing device is arranged inside the fixing ring;

[0009] The fixing device includes a rotating ring, which is rotatably installed inside the fixed ring, and four circumferentially evenly distributed protrusions are welded on the inner wall of the rotating ring, a connecting rod is slidably assembled inside the protrusion, a directional rod is welded on the top of the connecting rod, a clamping plate is fixedly connected to one side of the directional rod, a handle is welded on the inner wall of the rotating ring, a positioning block and a push rod are slidably assembled inside the handle, a positioning block is fixedly connected to the top of the positioning rod, a through hole is opened on the positioning rod, an inclined surface is arranged on the push rod, and a plurality of positioning holes are opened inside the fixed ring.

[0010] Preferably, a filter plate is fixedly connected to the inside of the shell, a reciprocating screw is rotatably installed inside the shell, an directional column is welded on the inner wall of the shell, an directional block is slidably assembled on the outer circumference of the directional column, a sliding sleeve is slidably assembled on the outer circumference of the reciprocating screw, and a scraper is fixedly connected to the sliding sleeve and one side of the directional rod.

[0011] Preferably, a rolling groove is provided on the protruding block, one end of the connecting rod is slidably connected to the inside of the rolling groove, and the rolling groove is used for the sliding of the connecting rod.

[0012] Preferably, the fixing ring is provided with a plurality of circumferentially evenly distributed orientation grooves, and a portion of the orientation rod is slidably connected inside the orientation grooves, and the orientation grooves are used to limit the moving direction of the orientation rod.

[0013] Preferably, a positioning groove is provided inside the handle, the positioning block is slidably connected inside the positioning groove, a positioning spring is commonly connected between the positioning block and the inner wall of the positioning groove, and the positioning spring is used for resetting the positioning block.

[0014] Preferably, a straight groove is provided inside the handle, and the push rod is slidably connected inside the straight groove, and the straight groove is used for the sliding of the push rod.

[0015] Preferably, a circular groove is provided on the sliding sleeve, a sliding block is installed on the inner wall of the circular groove, a reciprocating thread groove is provided on the reciprocating screw rod, the sliding block is slidably connected inside the reciprocating thread groove, and the reciprocating thread groove is used for the movement of the sliding block.

[0016] Preferably, an orientation hole is formed on the orientation block, and the orientation column passes through the interior of the orientation hole, and the orientation hole is used to limit the moving direction of the positioning block.

[0017] The working principle and beneficial effects of the utility model are:

[0018] 1. In the utility model, by setting the clamping plate, rotating ring and other structures, the rotating ring rotates to drive the protrusion and the connecting rod to move, and then the horizontal movement of the clamping plate is realized through the restriction of the directional rod, so as to clamp and fix the hose, thereby facilitating the installation and disassembly of the hose, so that the hose can be easily replaced after being damaged, and more convenient adjustment can be achieved through the elephant trunk-type hose.

[0019] 2. In the utility model, by setting up the reciprocating screw, scraper and other structures, the reciprocating screw is rotated to drive the sliding sleeve to reciprocate, and then the scraper is reciprocated to achieve the cleaning of the scraper, scrape and clean the residual impurities, ensure the fluidity of the filter plate, and ensure the normal use of the filter plate. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] The utility model is further described in detail below in conjunction with the accompanying drawings and specific implementation methods.

[0021] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0022] Figure 2 It is a structural schematic diagram of a fixing ring of the utility model;

[0023] Figure 3 This is a schematic diagram of the internal structure of the fixing ring of the utility model;

[0024] Figure 4 It is a structural schematic diagram of the positioning block and the push rod of the utility model;

[0025] Figure 5 It is a structural schematic diagram of the filter plate of the utility model;

[0026] Figure 6 It is a structural schematic diagram of the reciprocating screw rod and the sliding sleeve of the utility model;

[0027] Figure 7 For the utility model Figure 1 Enlarged view of point A in the middle.

[0028] In the figure: 1, housing; 2, hose; 3, connecting pipe; 4, fixing ring;

[0029] 5. Fixing device; 50. Rotating ring; 51. Protruding block; 52. Connecting rod; 53. Orienting rod; 54. Clamping plate; 55. Handle; 56. Positioning hole; 57. Positioning block; 58. Positioning rod; 59. Push rod; 500. Positioning spring;

[0030] 6. Filter plate; 7. Reciprocating screw rod; 8. Directional column; 9. Sliding sleeve; 10. Directional block; 11. Scraper; 12. Sliding block; 13. Snap-in groove; 14. Snap-in block; 15. Sealing ring. DETAILED DESCRIPTION

[0031] The following will be combined with the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0032] Example 1

[0033] like Figure 1-Figure 7 As shown, this embodiment proposes an elephant trunk type universal laboratory detoxification hood, including a shell 1, a hose 2 and a connecting pipe 3, the top of the shell 1 and one end of the connecting pipe 3 are fixedly connected with a fixing ring 4, the interior of the fixing ring 4 is provided with a fixing device 5, the fixing device 5 includes a rotating ring 50, the rotating ring 50 is rotatably installed inside the fixing ring 4, four circumferentially uniformly distributed protrusions 51 are welded on the inner wall of the rotating ring 50, the protrusions 51 are slidably assembled with a connecting rod 52, the top of the connecting rod 52 is welded with a directional rod 53, one side of the directional rod 53 is fixedly connected with a clamping plate 54, and the inner wall of the rotating ring 50 is welded with a handle 55, the handle The interior of 55 is slidably equipped with a positioning block 57 and a push rod 59, the top of the positioning block 57 is fixedly connected with a positioning rod 58, the positioning rod 58 is provided with a through hole, and the push rod 59 is provided with an inclined surface. A plurality of positioning holes 56 are provided inside the fixing ring 4. Through the arrangement of the clamping plate 54, the rotating ring 50 and other structures, the rotating ring 50 rotates to drive the protrusion and the connecting rod 52 to move, and then the horizontal movement of the clamping plate 54 is achieved through the restriction of the directional rod 53, so as to achieve the clamping and fixing of the hose 2, thereby facilitating the installation and disassembly of the hose 2, so that the hose 2 can be easily replaced after being damaged, and more convenient adjustment can be achieved through the trunk-type hose 2.

[0034] like Figure 2-Figure 3 As shown, a rolling groove is formed on the protruding block 51, and one end of the connecting rod 52 is slidably connected inside the rolling groove.

[0035] like Figure 2-Figure 3 As shown, the fixing ring 4 is provided with a plurality of circumferentially evenly distributed orientation grooves, and a portion of the orientation rod 53 is slidably connected inside the orientation grooves.

[0036] like Figure 2-Figure 4 As shown, a positioning groove is provided inside the handle 55 , a positioning block 57 is slidably connected inside the positioning groove, and a positioning spring 500 is commonly connected between the positioning block 57 and the inner wall of the positioning groove.

[0037] like Figure 2-Figure 4 As shown, a straight groove is provided inside the handle 55, and the push rod 59 is slidably connected inside the straight groove.

[0038] The specific implementation principle of this embodiment is as follows: insert the hose 2 into the fixing ring 4, and when the handle 55 is manually pressed, the push rod 59 is pushed, and the push rod 59 moves. Through the setting of the inclined surface on the push rod 59 and the through hole on the positioning rod 58, the push rod 59 drives the positioning rod 58 to move upward, and the positioning rod 58 drives the positioning block 57 to move. Then, the handle 55 can be rotated to drive the rotating ring 50 to move, and the rotating ring 50 drives the protruding block 51 to move, and the protruding block 51 drives the connecting rod 52 to move. Through the restriction of the directional rod 53 and the directional groove, the connecting rod 52 drives the positioning rod 58 to move horizontally, and then drives the clamping plate 54 to move horizontally to clamp the hose 2. Release the push rod 59, and the positioning spring 500 drives the positioning block 57 to reset and get stuck in the positioning hole 56 to fix the handle 55, thereby ensuring the stability of the clamping of the clamping plate 54, so as to realize the disassembly and assembly of the hose 2;

[0039] Furthermore, four circumferentially evenly distributed clamping grooves 13 are provided on the hose 2, and a clamping block 14 is fixedly connected to the clamping plate 54. The clamping grooves 13 and the clamping blocks 14 make the fixation of the hose 2 more stable. A sealing ring 15 is installed inside the fixing ring 4, and the sealing ring 15 is used to achieve sealing at the connection of the hose 2 to ensure the normal use of the detoxification hood and avoid leakage.

[0040] Example 2

[0041] like Figure 1-Figure 6 As shown, this embodiment also introduces an elephant trunk type universal laboratory detoxification hood, which adds the following structure on the basis of the first embodiment: a filter plate 6 is fixedly connected to the inside of the shell 1, a reciprocating screw 7 is rotatably installed inside the shell 1, an directional column 8 is welded on the inner wall of the shell 1, and an directional block 10 is slidably assembled on the outer peripheral surface of the directional column 8, a sliding sleeve 9 is slidably assembled on the outer peripheral surface of the reciprocating screw 7, and a scraper 11 is fixedly connected to the sliding sleeve 9 and one side of the directional rod 53. Through the arrangement of the reciprocating screw 7, the scraper 11 and other structures, the reciprocating screw 7 is rotated to drive the sliding sleeve 9 to reciprocate, and then the scraper 11 is reciprocated, so as to realize the cleaning of the scraper 11, scrape and clean the residual impurities, ensure the fluidity of the filter plate 6, and ensure the normal use of the filter plate 6.

[0042] like Figure 5-Figure 6 As shown, a circular groove is formed on the sliding sleeve 9, a sliding block 12 is installed on the inner wall of the circular groove, a reciprocating thread groove is formed on the reciprocating screw rod 7, and the sliding block 12 is slidably connected inside the reciprocating thread groove.

[0043] like Figure 5 As shown, an orientation hole is formed on the orientation block 10, and the orientation column 8 passes through the interior of the orientation hole.

[0044] The specific implementation principle of this embodiment is as follows: after the detox hood has been used for a long time, the filtered impurities are stuck to the filter plate 6. The reciprocating screw 7 is rotated to realize the reciprocating motion of the sliding sleeve 9 through the sliding block 12. Through the restriction of the directional rod 53 and the directional block 10, the sliding sleeve 9 and the directional block 10 drive the scraper 11 to reciprocate horizontally, thereby cleaning the filter plate 6 and ensuring the normal use of the filter plate 6.

[0045] The above are only preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. An elephant trunk type universal laboratory detoxification hood, comprising a housing (1), a hose (2) and a connecting pipe (3), characterized in that: A fixing ring (4) is fixedly connected to the top of the shell (1) and one end of the connecting pipe (3), and a fixing device (5) is arranged inside the fixing ring (4); The fixing device (5) comprises a rotating ring (50), wherein the rotating ring (50) is rotatably mounted inside the fixing ring (4), and four circumferentially evenly distributed protrusions (51) are welded on the inner wall of the rotating ring (50), and a connecting rod (52) is slidably mounted inside the protrusions (51), and a directional rod (53) is welded on the top of the connecting rod (52), and a clamping plate (54) is fixedly connected to one side of the directional rod (53), and a handle (55) is welded on the inner wall of the rotating ring (50), and a positioning block (57) and a push rod (59) are slidably mounted inside the handle (55), and a positioning rod (58) is fixedly connected to the top of the positioning block (57), and a through hole is provided on the positioning rod (58), and an inclined surface is provided on the push rod (59), and a plurality of positioning holes (56) are provided inside the fixing ring (4).

2. The elephant trunk type universal laboratory detoxification hood according to claim 1, characterized in that: A filter plate (6) is fixedly connected to the interior of the shell (1), a reciprocating screw rod (7) is rotatably mounted inside the shell (1), an orientation column (8) is welded to the inner wall of the shell (1), an orientation block (10) is slidably mounted on the outer peripheral surface of the orientation column (8), a sliding sleeve (9) is slidably mounted on the outer peripheral surface of the reciprocating screw rod (7), and a scraper (11) is fixedly connected to the sliding sleeve (9) and one side of the orientation rod (53).

3. The elephant trunk type universal laboratory detoxification hood according to claim 1, characterized in that: The protruding block (51) is provided with a rolling groove, and one end of the connecting rod (52) is slidably connected inside the rolling groove.

4. The elephant trunk type universal laboratory detoxification hood according to claim 1, characterized in that: The fixing ring (4) is provided with a plurality of directional grooves evenly distributed around the circumference, and a portion of the directional rod (53) is slidably connected inside the directional grooves.

5. The elephant trunk type universal laboratory detoxification hood according to claim 1, characterized in that: A positioning groove is provided inside the handle (55), the positioning block (57) is slidably connected inside the positioning groove, and a positioning spring (500) is commonly connected between the positioning block (57) and the inner wall of the positioning groove.

6. The elephant trunk type universal laboratory detoxification hood according to claim 1, characterized in that: A straight groove is provided inside the handle (55), and the push rod (59) is slidably connected inside the straight groove.

7. The elephant trunk type universal laboratory detoxification hood according to claim 2, characterized in that: The sliding sleeve (9) is provided with a circular groove, the inner wall of which is mounted a sliding block (12), the reciprocating screw rod (7) is provided with a reciprocating thread groove, and the sliding block (12) is slidably connected inside the reciprocating thread groove.

8. The elephant trunk type universal laboratory detoxification hood according to claim 2, characterized in that: The orientation block (10) is provided with an orientation hole, and the orientation column (8) passes through the interior of the orientation hole.

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