CN215412854U

CN215412854U - Electric heating constant temperature drying cabinet waste gas pipeline prevents leaking mechanism

Info

Publication number: CN215412854U
Application number: CN202122051168.3U
Authority: CN
Inventors: 冯兵; 宋道奎
Original assignee: Anhui Huachen Pharmaceutical Co ltd
Current assignee: Anhui Huachen Pharmaceutical Co ltd
Priority date: 2021-08-27
Filing date: 2021-08-27
Publication date: 2022-01-04
Anticipated expiration: 2031-08-27

Abstract

The utility model relates to the technical field of electrothermal constant-temperature drying boxes, in particular to an exhaust gas pipeline leakage-proof mechanism of an electrothermal constant-temperature drying box, which comprises an electrothermal constant-temperature drying box body, wherein an exhaust gas guide pipe is installed on the back surface of the electrothermal constant-temperature drying box body, the exhaust gas guide pipe is connected and communicated with a centralized processing box, the top end of the centralized processing box is provided with an air guide pipe, the top end of the air guide pipe is provided with a butt-joint sealing assembly, the surface of the butt-joint sealing assembly is provided with a protection assembly, and the butt-joint sealing assembly comprises an exhaust pipe. According to the utility model, the butt joint sealing assembly is arranged, so that high sealing performance of connection between the exhaust pipe and the air guide pipe is realized, two fastening nuts are arranged on the outer sides of the fixing clamping pieces to tightly lock the two groups of fixing clamping pieces, so that the sealing cavity formed between the two groups of fixing clamping pieces is matched with the butt joint pipe, the sealing path is prolonged, the sealing effect when the air guide pipe is in butt joint with the exhaust pipe is greatly improved, and the leakage of waste gas during the process is avoided.

Description

Electric heating constant temperature drying cabinet waste gas pipeline prevents leaking mechanism

Technical Field

The utility model relates to the technical field of electric heating constant temperature drying boxes, in particular to a leakage-proof mechanism for an exhaust gas pipeline of an electric heating constant temperature drying box.

Background

The constant temperature drying box is necessary testing equipment in the fields of aviation, automobiles, household appliances, scientific research and the like, and is used for testing and determining parameters and performances of electricians, electronics and other products and materials after the temperature environment changes in high-temperature tests. There are many structural forms.

Electric heat constant temperature drying cabinet, for adaptation variety proof quality, inside has carried out the polytetrafluoroethylene and has handled, acid and alkali-resistance, and the clean district of pharmaceutical factory will probably be drawn forth to outside extension pipeline, and the butt joint is generally fixed at the mode that external outside of tubes was equipped with the staple bolt between traditional pipeline, but this kind of butt joint mode's sealed effect is general, and after the live time is long, slight deformation appears in the pipeline, and the deviation can appear in the sealed of butt joint, influences the flow of gaseous in the pipeline. Therefore, a leakage-proof mechanism for the exhaust gas pipeline of the electric heating constant-temperature drying box is needed to solve the problems.

SUMMERY OF THE UTILITY MODEL

The present invention has been made to solve the above-mentioned problems occurring in the prior art.

In order to achieve the purpose, the utility model adopts the following technical scheme:

the utility model provides an electric heat constant temperature drying cabinet waste gas pipeline prevents leaking mechanism, includes electric heat constant temperature drying cabinet body, electric heat constant temperature drying cabinet body back mounted has the waste gas pipe, just the waste gas pipe is connected with the centralized processing case and link up, the centralized processing roof end is equipped with the bleed pipe, just bleed pipe top is equipped with butt joint seal assembly, butt joint seal assembly surface mounting has protection component, butt joint seal assembly includes the blast pipe, blast pipe bottom central point department of putting is connected with fixed pipe, just fixed pipe is inserted and is established inside sealed packing element, sealed packing element bottom seal cup joints at butt joint pipe surface, butt joint pipe bottom is equipped with the air duct, just the air duct bottom is connected with the bleed pipe and is link up.

Preferably, the exhaust gas pipe uses the centralized processing case to be provided with two sets ofly as the central axis symmetry, and is two sets of the exhaust gas pipe is the opposite left and right sides that distributes at the centralized processing case, concentrates through two exhaust gas pipes and accomodates the inside waste gas of electric heat constant temperature drying cabinet body.

Preferably, blast pipe bottom avris symmetry is provided with two fixed cards, two the sealed chamber of opposite formation of fixed card, just the internal diameter in sealed chamber and the biggest external diameter looks adaptation of sealed packing element, the sealed chamber that forms before through two fixed cards provides the space for sealed packing element inserts.

Preferably, the surface of the fixed card is sleeved with two fastening nuts through threads, the two fastening nuts are attached to each other and matched with each other through the two fastening nuts, and therefore the width of a gap between the two fixed cards is reduced.

Preferably, the sealing rubber cylinder is of a circular truncated cone-shaped structure, the inner diameter of the sealing rubber cylinder is gradually increased from top to bottom, and the inclined surface of the sealing rubber cylinder can guide the sealing rubber cylinder to be inserted into the fixing card.

Preferably, the bottom of the inner wall of the sealing rubber cylinder is provided with two rubber sealing rings, the surface of the butt joint pipe is embedded with the rubber sealing rings through sealing ring grooves, the rubber sealing rings are embedded in the sealing ring grooves on the surface of the butt joint pipe, and the sealing performance between the butt joint pipe and the sealing rubber cylinder is improved.

Preferably, the protection component comprises installation piece, screw thread cover piece and threaded rod, the installation piece is fixed on the blast pipe surface, just the blast pipe bottom is connected with the screw thread cover piece, screw thread cover piece bottom is provided with the threaded rod, the threaded rod bottom equidistance is encircleed and has been seted up the arc groove, forms the drum structure through the vertical exhibition of screw thread cover piece after pulling to the butt joint pipe is protected.

The utility model has at least the following beneficial effects:

1. through setting up butt joint seal assembly, realize the high leakproofness of being connected between blast pipe and the air duct, compare in traditional structure, this device is inserted through the butt joint pipe and is established at sealed packing element hypomere, sealed packing element upper segment cup joints at fixed pipe surface, and simultaneously, sealed packing element outer wall extrudees fixing card, make fixing card take place slight slope, it locks tightly two sets of fixing card to be provided with two fastening nut in the fixing card outside, make the sealed chamber that forms between two sets of fixing card and mutually support the butt joint pipe and prolonged sealed route, sealed effect when very big improvement air duct docks with the blast pipe, leakage appears when avoiding waste gas process.

2. Through setting up protection component, realize the guard action to the butt joint pipe, compare in traditional structure, this device makes the thread sleeve piece descend naturally through setting up the installation piece on the blast pipe surface under the action of gravity of threaded rod to protecting the butt joint pipe, avoiding receiving external environment influence, making the butt joint pipe surface crack futilely, the elastic sealing coefficient reduces, has improved the open-air life to a certain extent to the butt joint pipe, has further improved the seal time between air duct and the blast pipe.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings needed to be used in the description of the embodiments are briefly introduced below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without creative efforts.

FIG. 1 is a schematic diagram of an external structure of a waste gas pipeline leakage-proof mechanism of an electrothermal constant-temperature drying oven according to the present invention;

FIG. 2 is a schematic view of a back side structure of a waste gas pipeline leakage-proof mechanism of an electrothermal constant temperature drying oven according to the present invention;

FIG. 3 is a schematic three-dimensional explosive view of a butt-joint sealing assembly in a leak-proof mechanism for an exhaust gas pipeline of an electrothermal constant-temperature drying oven according to the present invention;

FIG. 4 is a schematic view of a partial three-dimensional burst of a butt-joint sealing assembly of a leak-proof mechanism for an exhaust gas pipeline of an electrothermal constant-temperature drying oven according to the present invention;

fig. 5 is a schematic diagram of a protection assembly of a waste gas pipeline leakage-proof mechanism of an electrothermal constant-temperature drying oven according to the present invention.

In the figure: 1. an electric heating constant temperature drying box body; 2. an exhaust gas conduit; 3. a centralized processing box; 4. A bleed pipe; 5. butt-joint sealing components; 51. an exhaust pipe; 52. fixing the card; 53. a fixed tube; 54. fastening a nut; 55. butt-joint pipes; 56. sealing the rubber cylinder; 57. an air duct; 58. a rubber seal ring; 6. a guard assembly; 61. mounting blocks; 62. a threaded bushing block; 63. a threaded rod.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is described in further detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the utility model and are not intended to limit the utility model.

Referring to fig. 1-5, a leakage-proof mechanism for exhaust gas pipeline of electric heating constant temperature drying oven comprises an electric heating constant temperature drying oven body 1, an exhaust gas conduit 2 is installed on the back of the electric heating constant temperature drying oven body 1, the exhaust gas conduit 2 is connected and communicated with a centralized processing box 3, a gas guide pipe 4 is arranged at the top end of the centralized processing box 3, a butt sealing assembly 5 is arranged at the top end of the gas guide pipe 4, a protection assembly 6 is installed on the surface of the butt sealing assembly 5, the butt sealing assembly 5 comprises an exhaust pipe 51, a fixing pipe 53 is connected with the center of the bottom end of the exhaust pipe 51, the fixing pipe 53 is inserted into a sealing rubber cylinder 56, the bottom end of the sealing rubber cylinder 56 is hermetically sleeved on the surface of a butt pipe 55, a gas guide pipe 57 is arranged at the bottom end of the butt pipe 55, the bottom end of the gas guide pipe 57 is connected and communicated with the gas guide pipe 4, the fixing clamp 52 is extruded through the outer wall of the sealing rubber cylinder 56, so that the fixing clamp 52 slightly inclines, be provided with two fastening nut 54 in the fixed card 52 outside and lock two sets of fixed cards 52, make the sealed chamber that forms between two sets of fixed cards 52 mutually support with butt joint pipe 55 and prolonged sealed route, sealed effect when very big improvement air duct 57 docks with blast pipe 51 avoids waste gas to appear leaking when through.

Specifically, exhaust gas guide pipe 2 uses centralized processing case 3 to be provided with two sets ofly as the central axis symmetry, and two sets of exhaust gas guide pipe 2 are opposite to be distributed in the left and right sides of centralized processing case 3, concentrate through two exhaust gas guide pipe 2 to the inside waste gas of electric heat constant temperature drying cabinet body and accomodate, have improved the exhaust efficiency of waste gas to a certain extent.

Further, blast pipe 51 bottom avris symmetry is provided with two fixed cards 52, and two fixed cards 52 are opposite to form sealed chamber, and the internal diameter in sealed chamber and the biggest external diameter looks adaptation of sealed packing element 56, and sealed chamber through two fixed cards 52 preceding formation provides the space for sealed packing element 56 inserts, makes things convenient for the staff to accomplish sealed packing element 56 fast and fixed with the butt joint of fixed card 52.

Still further, the fastening nut 54 has been cup jointed through the screw thread on the fixed card 52 surface, and fastening nut 54 is provided with two, laminates each other between two fastening nut 54, mutually supports through two fastening nut 54 to reduce the width in gap between two fixed cards 52, guarantee the fastening effect of fixed card 52 to the joint of sealed packing element 56.

Furthermore, the packing element 56 is round platform shape structure, and packing element 56 internal diameter top-down progressively increases, packing element 56's special design can accomplish the butt joint between 56 and the fixed pipe 53 of multiple bore of packing element, simultaneously, when packing element 56 inserts the sealed chamber of fixing card 52, packing element 56's inclined plane can insert fixing card 52 to packing element 56 and guide, working strength when reducing staff's connecting tube provides certain convenience.

It is worth noting that two rubber sealing rings 58 are arranged at the bottom end of the inner wall of the rubber sealing cylinder 56, the rubber sealing rings 58 are embedded in the surface of the butt joint pipe 55 through sealing ring grooves, when the lower section of the rubber sealing cylinder 56 is sleeved on the surface of the butt joint pipe 55, the rubber sealing rings 58 are embedded in the sealing ring grooves in the surface of the butt joint pipe 55, and the connection between the butt joint pipe 55 and the rubber sealing rings 58 is reinforced while the sealing performance between the butt joint pipe 55 and the rubber sealing cylinder 56 is improved.

In addition, protection component 6 is by installation piece 61, thread bushing block 62 and threaded rod 63 are constituteed, installation piece 61 is fixed on blast pipe 51 surface, and blast pipe 51 bottom is connected with thread bushing block 62, thread bushing block 62 bottom is provided with threaded rod 63, threaded rod 63 bottom equidistance is encircleed and has been seted up the arc groove, the natural tenesmus pulling thread bushing block 62 through threaded rod 63 removes, make the vertical exhibition of thread bushing block 62 draw the back and form the drum structure, thereby protect butt joint pipe 55, avoid butt joint pipe 55 to receive external influence and produce the morals and manners phenomenon.

The working principle is as follows: according to the attached

drawings

2, 3 and 4, firstly, the lower section of the sealing rubber cylinder 56 is sleeved on the surface of the butt joint pipe 55, the fixed pipe 53 is inserted on the upper section of the sealing rubber cylinder 56, when the fixed pipe 53 contacts with the butt joint pipe 55, the sealing cavity formed by combining the two fixed clamping pieces 52 is sleeved on the surface of the sealing rubber cylinder 56 and is extruded by the sealing rubber cylinder 56, at this time, the fixed clamping pieces 52 are slightly inclined, the fastening nuts 54 are sleeved on the surface of the fixed clamping pieces 52 in a threaded manner, so as to extrude the fixed clamping pieces 52, and the fixed clamping pieces 52 are stressed to extrude the sealing rubber cylinder 56, so that the sealing tightness of the butt joint of the air guide pipe 57 and the exhaust pipe 51 is ensured;

secondly, after the exhaust pipe 51 is completely butted with the air guide pipe 57, the threaded sleeve block 62 is pulled to move through the natural falling of the threaded rod 63, so that the threaded sleeve block 62 is vertically stretched to form a cylindrical structure, the butt joint pipe 55 is protected, and the phenomenon that the butt joint pipe 55 is weathered due to the influence of the outside is avoided.

The foregoing shows and describes the general principles, essential features, and advantages of the utility model. It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, which are merely illustrative of the principles of the utility model, but that various changes and modifications may be made without departing from the spirit and scope of the utility model, which fall within the scope of the utility model as claimed. The scope of the utility model is defined by the appended claims and equivalents thereof.

Claims

1. The utility model provides an electric heat constant temperature drying cabinet exhaust gas pipeline prevents leaking mechanism, includes electric heat constant temperature drying cabinet body (1), its characterized in that, electric heat constant temperature drying cabinet body (1) back mounted has exhaust gas pipe (2), just exhaust gas pipe (2) are connected with centralized processing case (3) and are link up, centralized processing case (3) top is equipped with bleed pipe (4), and bleed pipe (4) top is equipped with butt joint seal subassembly (5), butt joint seal subassembly (5) surface mounting has protection component (6), butt joint seal subassembly (5) include blast pipe (51), blast pipe (51) bottom central point department is connected with fixed pipe (53), and fixed pipe (53) insert and establish in sealed packing element (56) inside, sealed packing element (56) bottom seal cover is in butt joint pipe (55) surface, butt joint pipe (55) bottom is equipped with air duct (57), and the bottom end of the air duct (57) is connected and communicated with the air-entraining pipe (4).

2. The electric heating constant temperature drying box exhaust gas pipeline leakage-proof mechanism according to claim 1, wherein the exhaust gas guide pipes (2) are symmetrically arranged in two groups by taking the centralized processing box (3) as a central axis, and the two groups of exhaust gas guide pipes (2) are oppositely distributed on the left side and the right side of the centralized processing box (3).

3. The electric heating constant temperature drying oven exhaust gas pipeline leakage preventing mechanism as claimed in claim 1, wherein two fixing clamping pieces (52) are symmetrically arranged at the bottom end side of the exhaust pipe (51), the two fixing clamping pieces (52) oppositely form a sealing cavity, and the inner diameter of the sealing cavity is matched with the maximum outer diameter of the sealing rubber cylinder (56).

4. The electric heating constant temperature drying oven exhaust gas pipeline leakage preventing mechanism is characterized in that two fastening nuts (54) are sleeved on the surface of the fixing clamping piece (52) through threads, and the two fastening nuts (54) are attached to each other.

5. The electric heating constant temperature drying box exhaust gas pipeline leakage-proof mechanism as claimed in claim 1, wherein the sealing rubber cylinder (56) is in a circular truncated cone shape structure, and the inner diameter of the sealing rubber cylinder (56) is gradually increased from top to bottom.

6. The electric heating constant temperature drying oven exhaust gas pipeline leakage prevention mechanism as claimed in claim 1, wherein two rubber sealing rings (58) are arranged at the bottom end of the inner wall of the sealing rubber cylinder (56), and the rubber sealing rings (58) are embedded in the surface of the butt joint pipe (55) through sealing ring grooves.

7. The electric heating constant temperature drying box exhaust gas pipeline leakage-proof mechanism according to claim 1, characterized in that the protection component (6) is composed of a mounting block (61), a threaded sleeve block (62) and a threaded rod (63), the mounting block (61) is fixed on the surface of the exhaust pipe (51), the threaded sleeve block (62) is connected to the bottom end of the exhaust pipe (51), the threaded rod (63) is arranged at the bottom end of the threaded sleeve block (62), and arc grooves are formed around the bottom end of the threaded rod (63) at equal intervals.