CN215175872U

CN215175872U - Heating ventilation air conditioner air guide pipe for electromechanical engineering

Info

Publication number: CN215175872U
Application number: CN202121367465.2U
Authority: CN
Inventors: 刘春娟; 王宜山
Original assignee: Individual
Current assignee: Individual
Priority date: 2021-06-18
Filing date: 2021-06-18
Publication date: 2021-12-14
Anticipated expiration: 2031-06-18

Abstract

The application discloses a heating ventilation air conditioner air guide pipe for electromechanical engineering, which comprises a connecting pipe, an air guide pipe, a protection mechanism and a connecting mechanism; the protection mechanism comprises a protection sleeve and an active slot, wherein the two sides of the protection sleeve are provided with clamping grooves, first lugs are arranged in the clamping grooves, the surface of the protection sleeve is provided with first connecting bolts, the bottom end of each first connecting bolt penetrates through the protection sleeve, the inner side of the protection sleeve is fixedly connected with a second lug, the surfaces of the connecting pipes and the air guide pipe are provided with slots, the active slot is formed in the protection sleeve, an inserting rod is arranged in the active slot, the bottom end of the inserting rod penetrates through the active slot and extends to the inside of the slot, and the top end of the inserting rod penetrates through the active slot and is fixedly connected with an active block. This application easy operation can install the protective sheath on connecting pipe and guide duct junction surface through first connecting bolt, first lug, movable block, spring, baffle, activity groove, slot and inserted bar, can place the condition that the fracture leaked in the junction appearance when using.

Description

Heating ventilation air conditioner air guide pipe for electromechanical engineering

Technical Field

The application relates to the field of electromechanical engineering, in particular to a heating ventilation air conditioner air guide pipe for electromechanical engineering.

Background

Electromechanical engineering is a general term for mechanical engineering and electrical engineering, but sometimes it is also called as a abbreviation for mechanical engineering and electrical engineering. The professional culture of mechanical and electronic engineering has the advantages of having necessary basic theoretical knowledge and special knowledge and stronger capability of engaging in actual work in the professional field, adapting to the first-line requirements of production construction, management and service, and comprehensively developing high-grade application talents and technical talents in the aspects of moral, intelligence, physical and American and the like.

When the heating ventilation air conditioner is involved in electromechanical engineering, various devices are connected through the air guide pipes, but the connection between the general air guide pipes is not firm enough, the connection part is easy to damage, and the leakage is easy to occur. Therefore, the heating ventilation air conditioner air guide pipe for the electromechanical engineering is provided for solving the problems.

Disclosure of Invention

The embodiment provides a heating ventilation air conditioner air guide pipe for electromechanical engineering, which is used for solving the problem that a pipeline joint in the prior art is easy to break and damage.

According to one aspect of the application, a heating ventilation air conditioner air guide pipe for electromechanical engineering is provided, and comprises a connecting pipe, an air guide pipe, a protection mechanism and a connecting mechanism;

the protection mechanism comprises a protection sleeve and an active slot, wherein the two sides of the protection sleeve are provided with clamping grooves, first lugs are arranged in the clamping grooves, the surface of the protection sleeve is provided with first connecting bolts, the bottom end of each first connecting bolt penetrates through the protection sleeve, the inner side of the protection sleeve is fixedly connected with a second lug, the surfaces of the connecting pipes and the air guide pipe are provided with slots, the active slot is formed in the protection sleeve, an inserting rod is arranged in the active slot, the bottom end of the inserting rod penetrates through the active slot and extends to the inside of the slot, and the top end of the inserting rod penetrates through the active slot and is fixedly connected with an active block.

Furthermore, the connecting mechanism comprises annular plates and positioning pipes, wherein the opposite sides of the connecting pipe and the air guide pipe are fixedly connected with the annular plates, the two annular plates are connected through a second connecting bolt, clamping plates are sleeved on the surfaces of the two annular plates, grooves are formed in the inner diameters of the opposite ends of the connecting pipe and the air guide pipe, the positioning pipes are arranged behind the connecting pipe and the air guide pipe, and the surfaces of the two ends of the positioning pipes are fixedly connected with lugs.

Furthermore, an anticorrosive coating is bonded on the inner side of the air guide pipe, an inner layer is compositely connected on the inner side of the anticorrosive coating, and a heat insulation layer is bonded on the inner side of the inner layer.

Furthermore, locating grooves are formed in the surfaces of the connecting pipe and the air guide pipe, a second convex block is arranged inside each locating groove, the surfaces of the connecting pipe and the air guide pipe are fixedly connected with first convex blocks, threaded grooves are formed in the surfaces of the first convex blocks, and the first connecting bolt is connected with the threaded grooves and the protective sleeve through threads.

Furthermore, a baffle is arranged inside the movable groove, the baffle is sleeved on the surface of the inserted rod, the top of the baffle is fixedly connected with a spring, the spring is sleeved on the surface of the inserted rod, and the top of the spring is fixedly connected with the inner wall of the movable groove.

Furthermore, circular gaps with the same size are formed in the top and the bottom of the movable groove, and the diameter of each circular gap is larger than that of the insertion rod and smaller than that of the movable block and the outer diameter of the baffle.

Furthermore, the connecting pipe and the surface of the air guide pipe are sleeved with protective sleeves, the clamping plate is of an annular structure, and the clamping plate is sleeved at the joint of the connecting pipe and the air guide pipe.

Furthermore, the anticorrosive coating is made of resin materials, the heat preservation layer is made of rubber materials, and the anticorrosive coating, the heat preservation layer and the inner layer are the same in thickness.

Further, the width of the inner side of the clamping plate is larger than the sum of the widths of the two annular plates.

Furthermore, the inner diameters of one ends of the protection sleeves are larger than the outer diameters of the connecting pipe and the air guide pipe, the two protection sleeves are connected through the connecting plate, and one end of each protection sleeve is made of an elastic material.

Through the above-mentioned embodiment of this application, adopted protection mechanism, solved the easy damage problem that breaks of pipe connection department, gained the stability of guaranteeing to connect and can play the protective effect.

Drawings

In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings needed to be used in the description of the embodiments or the prior art will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present application, and it is obvious for those skilled in the art that other drawings can be obtained according to the drawings without inventive exercise.

FIG. 1 is a schematic perspective view of one embodiment of the present application;

FIG. 2 is an overall schematic view of an embodiment of the present application;

FIG. 3 is an internal schematic view of an embodiment of the present application;

FIG. 4 is a schematic view of an air guide duct according to an embodiment of the present disclosure;

fig. 5 is a partially enlarged view of a portion a of fig. 2 according to an embodiment of the present disclosure.

In the figure: 1. connecting pipe, 2, first lug, 3, first connecting bolt, 4, annular plate, 5, thread groove, 6, guide duct, 7, protective sheath, 8, second connecting bolt, 9, splint, 10, second lug, 11, constant head tank, 12, draw-in groove, 13, anticorrosive coating, 14, heat preservation, 15, inlayer, 16, recess, 17, registration arm, 18, lug, 19, baffle, 20, movable block, 21, spring, 22, movable groove, 23, slot, 24, inserted bar.

Detailed Description

In order to make the technical solutions better understood by those skilled in the art, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are only partial embodiments of the present application, but not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present application.

It should be noted that the terms "first," "second," and the like in the description and claims of this application and in the drawings described above are used for distinguishing between similar elements and not necessarily for describing a particular sequential or chronological order. It should be understood that the data so used may be interchanged under appropriate circumstances such that embodiments of the application described herein may be used. Furthermore, the terms "comprises," "comprising," and "having," and any variations thereof, are intended to cover a non-exclusive inclusion, such that a process, method, system, article, or apparatus that comprises a list of steps or elements is not necessarily limited to those steps or elements expressly listed, but may include other steps or elements not expressly listed or inherent to such process, method, article, or apparatus.

In this application, the terms "upper", "lower", "left", "right", "front", "rear", "top", "bottom", "inner", "outer", "middle", "vertical", "horizontal", "lateral", "longitudinal", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings. These terms are used primarily to better describe the present application and its embodiments, and are not used to limit the indicated devices, elements or components to a particular orientation or to be constructed and operated in a particular orientation.

Moreover, some of the above terms may be used to indicate other meanings besides the orientation or positional relationship, for example, the term "on" may also be used to indicate some kind of attachment or connection relationship in some cases. The specific meaning of these terms in this application will be understood by those of ordinary skill in the art as appropriate.

Furthermore, the terms "mounted," "disposed," "provided," "connected," and "sleeved" are to be construed broadly. For example, it may be a fixed connection, a removable connection, or a unitary construction; can be a mechanical connection, or an electrical connection; may be directly connected, or indirectly connected through intervening media, or may be in internal communication between two devices, elements or components. The specific meaning of the above terms in the present application can be understood by those of ordinary skill in the art as appropriate.

It should be noted that the embodiments and features of the embodiments in the present application may be combined with each other without conflict. The present application will be described in detail below with reference to the embodiments with reference to the attached drawings.

The air guide pipe in the present embodiment may be applied to various heating, ventilation and air conditioning systems, for example, the following heating, ventilation and air conditioning system is provided in the present embodiment, and the air guide pipe in the present embodiment may be used to be installed in the following heating, ventilation and air conditioning system.

An intelligent heating and ventilation air conditioner without water humidification comprises a horizontal rectangular sleeve, the right end of the rectangular sleeve is sealed, the right end face of the rectangular sleeve is rotatably provided with a horizontal cylindrical first sleeve, the rectangular sleeve is coaxial with the first sleeve, a first through hole is formed in the position, corresponding to the first sleeve, of the right end face of the rectangular sleeve, a horizontal partition plate is arranged at the center inside the rectangular sleeve, the end face of the partition plate is fixedly connected with the inner wall of the rectangular sleeve, the center of the first sleeve is provided with a horizontal cylindrical second sleeve with the right end sealed, the left end face of the second sleeve is fixedly connected with the right end face of the partition plate, the side face of the second sleeve is provided with a vertical annular groove, a vertical ring is arranged in the annular groove through a bearing, an annular filter screen is fixedly arranged between the outer side face of the ring and the inner side face of the first sleeve, a toothed ring is fixedly arranged on the outer side face of the first sleeve, and is coaxial with the first sleeve, and a motor is fixedly arranged on the outer side face of the rectangular sleeve, a first gear is sleeved on the output shaft of the motor, the first gear is meshed with the gear ring, a vertical first box body is arranged at the position of the top surface of the second sleeve, which is positioned at the left side of the filter screen, the bottom surface of the first box body is fixedly connected with the top surface of the second sleeve, the bottom surface and the right side surface of the first box body are open, the position of the right side surface of the first box body, which is close to the front end, is in contact fit with the left side surface of the filter screen, a certain gap is formed between the right side surface of the first box body and the filter screen, a vertical second box body is arranged at the position of the bottom surface of the second sleeve, which is positioned at the right side of the filter screen, the top surface of the second box body is fixedly connected with the bottom surface of the second sleeve, the top surface and the left side surface of the second box body are open, the position of the left side surface of the second box body, which is close to the front end, is in contact fit with the filter screen, a certain gap is formed between the left side surface of the second sleeve, a dust collecting device is arranged in the second sleeve, and the dust collecting device can collect dust in the first box body and the second box body, the top surface of the partition board is fixedly provided with a first fan, the bottom surface of the partition board is fixedly provided with a second fan, the first fan and the second fan are both provided with power, the top surface of the partition board is positioned at the left side of the first fan and is provided with a temperature adjusting device which can play the roles of cooling and heating, a plurality of first rotating shafts in the front-back direction are arranged at the upper part of the partition board close to the left end in the rectangular sleeve, the first rotating shafts are sequentially arranged up and down, a plurality of second rotating shafts in the front-back direction are arranged at the lower part of the partition board close to the left end in the rectangular sleeve, the second rotating shafts are sequentially arranged up and down, the positions of the rear side surface of the rectangular sleeve corresponding to the first rotating shafts and the second rotating shafts are provided with first cavities, the positions of the inner walls of the first cavities corresponding to the first rotating shafts and the second rotating shafts are provided with second through holes, one ends of the first rotating shafts and the second rotating shafts are connected with the corresponding second through bearings, the other ends of the first rotating shafts and the second rotating shafts are connected with the inner walls of the rectangular sleeve through bearings, a second gear is sleeved at one end of the first rotating shaft extending into the first cavity, a third gear is sleeved at one end of the second rotating shaft extending into the first cavity, a vertical first rack is arranged at the position of the first cavity corresponding to the second gear, the second gear is meshed with the first rack, a vertical second rack is arranged at the position of the first cavity corresponding to the third gear, the third gear is meshed with the second rack, a fourth gear is arranged at one end of the first rack adjacent to the second rack, the first rack and the second rack are meshed with the fourth gear, a rotating shaft of the fourth gear is connected with the inner wall of the first cavity, the fourth gear is driven by a motor, vertical guide rails are arranged at the positions of the inner wall of the first cavity corresponding to the first rack and the second rack, sliding blocks are arranged on the guide rails and fixedly connected with the corresponding racks, and first wind shields are fixedly arranged at the positions of the side surfaces of the first rotating shaft corresponding to the rectangular sleeve, and second wind baffles are fixedly arranged at the positions of the side surfaces of the second rotating shafts corresponding to the rectangular sleeves.

The dust collecting device comprises a second sleeve, a third through hole is formed in the position, corresponding to the first box body, of the side face of the second sleeve, the outer end of the third through hole is fixedly connected with the bottom end of the first box body, a fourth through hole is formed in the position, corresponding to the second box body, of the side face of the second sleeve, the outer end of the fourth through hole is fixedly connected with the top end of the second box body, a third fan is fixedly installed inside the second sleeve and located on the left side of the third through hole, the third fan is provided with power, a fifth through hole is formed in the position, corresponding to the second sleeve, of the right side face of the partition board, a third sleeve is inserted and matched in the fifth through hole, the left end of the third sleeve is sealed, a plurality of sixth through holes are formed in the left end face of the third sleeve, sponge is installed in the third sleeve, a handle is fixedly installed behind the left side face of the third sleeve, a horizontal first electric telescopic rod is fixedly installed on the rear side face of the first box body, the movable end of the first electric telescopic rod faces the right, a vertical first baffle is fixedly installed at the movable end of the first electric telescopic rod, a horizontal second electric telescopic rod is fixedly installed on the front side face of the second box body, the movable end of the second electric telescopic rod faces the left, and a vertical second baffle is fixedly installed on the movable end of the second electric telescopic rod.

The left side surface in the first box body and the right side surface in the second box body are concave surfaces.

Temperature regulation apparatus include the baffle, the heat pipe of baffle top surface position in the left side fixed mounting S type of first fan, be full of liquid in the heat pipe, the heat pipe both ends respectively with the water inlet of water pump and the fixed sealing connection of delivery port, the water pump can drive the liquid flow in the heat pipe, the heat pipe outside sets up heat sink and heating device, the heat pipe has the heat-conducting ability, heating device and heat sink can heat respectively and cool down to the liquid in the heat pipe.

Of course, the present embodiment can also be used for heating, ventilating and air conditioning installed in other structures. Here, description is not repeated, and the following describes the air guiding pipe according to the embodiment of the present application.

Referring to fig. 1-5, a heating ventilation air-conditioning duct for electromechanical engineering includes a connecting pipe 1, a duct 6, a protection mechanism and a connecting mechanism;

the protection mechanism comprises a protection sleeve 7 and a movable groove 22, wherein clamping grooves 12 are formed in two sides of the protection sleeve 7, first bumps 2 are arranged inside the clamping grooves 12, a first connecting bolt 3 is arranged on the surface of the protection sleeve 7, the bottom end of the first connecting bolt 3 penetrates through the protection sleeve 7, second bumps 10 are fixedly connected to the inner side of the protection sleeve 7, slots 23 are formed in the surfaces of the connecting pipe 1 and the air guide pipe 6, the movable groove 22 is formed inside the protection sleeve 7, an inserting rod 24 is arranged inside the movable groove 22, the bottom end of the inserting rod 24 penetrates through the movable groove 22 and extends to the inside of the slot 23, the top end of the inserting rod 24 penetrates through the movable groove 22 and is fixedly connected with the movable block 20, and the joint of the connecting pipe 1 and the air guide pipe 6 can be protected.

The connecting mechanism comprises annular plates 4 and a positioning pipe 17, the opposite sides of the connecting pipe 1 and the air guide pipe 6 are fixedly connected with the annular plates 4, the two annular plates 4 are connected through a second connecting bolt 8, clamping plates 9 are sleeved on the surfaces of the two annular plates 4, a groove 16 is formed in the inner diameter of the opposite ends of the connecting pipe 1 and the air guide pipe 6, the positioning pipe 17 is arranged behind the connecting pipe 1 and the air guide pipe 6, and the surfaces of the two ends of the positioning pipe 17 are fixedly connected with convex blocks 18, so that the connecting pipe 1 and the air guide pipe 6 can be conveniently connected; an anticorrosive layer 13 is bonded on the inner side of the air guide pipe 6, an inner layer 15 is compositely connected on the inner side of the anticorrosive layer 13, and a heat-insulating layer 14 is bonded on the inner side of the inner layer 15, so that the anticorrosive and heat-insulating effects can be achieved; positioning grooves 11 are formed in the surfaces of the connecting pipe 1 and the air guide pipe 6, a second bump 10 is arranged inside each positioning groove 11, the surfaces of the connecting pipe 1 and the air guide pipe 6 are fixedly connected with a first bump 2, a thread groove 5 is formed in the surface of the first bump 2, and the first connecting bolt 3 is connected with the thread groove 5 and the protective sleeve 7 through threads, so that the protective sleeve 7 is convenient to install; a baffle plate 19 is arranged in the movable groove 22, the baffle plate 19 is sleeved on the surface of the inserted rod 24, the top of the baffle plate 19 is fixedly connected with a spring 21, the spring 21 is sleeved on the surface of the inserted rod 24, and the top of the spring 21 is fixedly connected with the inner wall of the movable groove 22, so that the positioning effect can be achieved; circular gaps with the same size are formed in the top and the bottom of the movable groove 22, the diameter of each circular gap is larger than that of the insertion rod 24 and smaller than that of the movable block 20 and the outer diameter of the baffle 19, and therefore the falling-off condition is avoided; the protective sleeve 7 is sleeved on the surfaces of the connecting pipe 1 and the air guide pipe 6, the clamping plate 9 is of an annular structure, and the clamping plate 9 is sleeved at the joint of the connecting pipe 1 and the air guide pipe 6, so that the connecting stability of the connecting pipe 1 and the air guide pipe 6 can be improved; the anti-corrosion layer 13 is made of resin materials, the heat insulation layer 14 is made of rubber materials, and the anti-corrosion layer 13, the heat insulation layer 14 and the inner layer 15 are the same in thickness, so that the anti-corrosion capability and the heat insulation capability of the connecting pipe 1 and the air guide pipe 6 can be guaranteed; the width of the inner side of the clamping plate 9 is larger than the sum of the widths of the two annular plates 4, so that the positioning effect on the annular plates 4 can be facilitated; the internal diameter of one end of each protective sleeve 7 is larger than the external diameters of the connecting pipe 1 and the air guide pipe 6, the two protective sleeves 7 are connected through a connecting plate, one end of each protective sleeve 7 is made of elastic materials, and the protective sleeves 7 can be conveniently sleeved on the surfaces of the connecting pipes 1 and the air guide pipes 6.

When the utility model is used, the electrical components in the application are externally connected with a power supply and a control switch, the connecting pipe 1 and the air guide pipe 6 have certain elasticity when being connected, the lug 18 on the surface of the positioning pipe 17 can be clamped inside the groove 16 at one end of the connecting pipe 1 and the air guide pipe 6 opposite to each other, so that the connecting pipe 1 is conveniently connected with the air guide pipe 6, then the annular plate 4 at one side of the connecting pipe 1 and the air guide pipe 6 opposite to each other is connected through the second connecting bolt 8, the clamping plate 9 is sleeved on the surface of the annular plate 4, then two protective sleeves 7 can be sleeved on the surfaces of the connecting pipe 1 and the air guide pipe 6, when the protective sleeves 7 are installed, one end of each protective sleeve 7 has certain elasticity, after the protective sleeves 7 are loosened, the second lug 10 at the inner side of each protective sleeve 7 can be clamped inside the positioning groove 11, and the clamping groove 12 at one end of each protective sleeve 7 is clamped on the surface of the first lug 2 on the surfaces of the connecting pipe 1 and the air guide pipe 6, then the first connecting bolt 3 is screwed to be connected with the first bump 2, so that the fixing is convenient;

when the protective sleeve 7 is installed, the baffle 19 can be pushed to move through the elasticity of the spring 21, the insertion rod 24 can be conveniently inserted into the insertion slot 23, the sliding condition after the protective sleeve 7 is installed is avoided, in addition, when the protective sleeve 7 is disassembled, the protective sleeve 7 can be conveniently slid by pulling the movable block 20, the protective sleeve 7 is conveniently taken out, one end of the air guide pipe 6 can be bent, and the protective sleeve 7 is conveniently taken out;

the air guide pipe 6 and the connecting pipe 1 are made of the same internal material, an anti-corrosion effect can be achieved through the anti-corrosion layer 13, the situation that the connecting pipe 1 and the air guide pipe 6 are rotten is avoided, and a heat preservation effect can be achieved through the heat preservation layer 14.

The application has the advantages that:

1. the protective sleeve is simple to operate, the protective sleeve can be arranged on the surface of the joint of the connecting pipe and the air guide pipe through the first connecting bolt, the first bump, the movable block, the spring, the baffle, the movable groove, the slot and the inserted rod, and the situation that the joint is cracked and leaked can be avoided when the protective sleeve is used;

2. the connecting pipe and the air guide pipe are reasonable in structure, the connecting pipe and the air guide pipe can be conveniently connected through the clamping plates, and then the two clamping plates, the matching grooves, the positioning pipes and the lugs are connected through the second connecting bolts, so that the connecting firmness of the connecting pipe and the air guide pipe can be improved, and the looseness can be prevented;

3. this application can play anticorrosive heat preservation effect through inside anticorrosive coating, heat preservation and the inlayer of air duct, can improve life, also can avoid appearing breaking the rotten condition in the use, and the cooperation protective sheath can be more durable.

It is well within the skill of those in the art to implement, without undue experimentation, the present application is not directed to software and process improvements, as they relate to circuits and electronic components and modules.

The above description is only a preferred embodiment of the present application and is not intended to limit the present application, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, improvement and the like made within the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims

1. The utility model provides a heating ventilation air conditioner guide duct for electromechanical engineering which characterized in that: comprises a connecting pipe (1), an air guide pipe (6), a protection mechanism and a connecting mechanism;

the protection mechanism comprises a protection sleeve (7) and a movable groove (22), wherein the two sides of the protection sleeve (7) are provided with clamping grooves (12), first lugs (2) are arranged inside the clamping grooves (12), first connecting bolts (3) are arranged on the surface of the protection sleeve (7), the bottom end of each first connecting bolt (3) penetrates through the protection sleeve (7), second lugs (10) are fixedly connected to the inner side of the protection sleeve (7), inserting grooves (23) are arranged on the surfaces of connecting pipes (1) and an air guide pipe (6), the movable groove (22) is arranged inside the protection sleeve (7), an inserting rod (24) is arranged inside the movable groove (22), the bottom end of the inserting rod (24) penetrates through the movable groove (22) and extends to the inside of the inserting groove (23), and the top end of the inserting rod (24) penetrates through the movable groove (22) and is fixedly connected with the movable block (20).

2. The heating, ventilating and air conditioning air guide duct for the electromechanical engineering as claimed in claim 1, wherein: the connecting mechanism comprises annular plates (4) and a positioning pipe (17), the connecting pipe (1) and the air guide pipe (6) are fixedly connected with the annular plates (4) at one opposite sides, the annular plates (4) are connected through a second connecting bolt (8), a clamping plate (9) is sleeved on the surface of each annular plate (4), a groove (16) is formed in the inner diameter of one opposite end of the connecting pipe (1) and the air guide pipe (6), the positioning pipe (17) is arranged behind the connecting pipe (1) and the air guide pipe (6), and bumps (18) are fixedly connected with the surfaces of the two ends of the positioning pipe (17).

3. The heating, ventilating and air conditioning air guide duct for the electromechanical engineering as claimed in claim 1, wherein: the inner side of the air guide pipe (6) is bonded with an anticorrosive layer (13), the inner side of the anticorrosive layer (13) is compositely connected with an inner layer (15), and the inner side of the inner layer (15) is bonded with a heat-insulating layer (14).

4. The heating, ventilating and air conditioning air guide duct for the electromechanical engineering as claimed in claim 1, wherein: locating grooves (11) are formed in the surfaces of the connecting pipe (1) and the air guide pipe (6), second convex blocks (10) are arranged inside the locating grooves (11), the surfaces of the connecting pipe (1) and the air guide pipe (6) are fixedly connected with first convex blocks (2), thread grooves (5) are formed in the surfaces of the first convex blocks (2), and the first connecting bolt (3) is connected with the thread grooves (5) and the protective sleeve (7) through threads.

5. The heating, ventilating and air conditioning air guide duct for the electromechanical engineering as claimed in claim 1, wherein: the novel plug-in type spring is characterized in that a baffle (19) is arranged inside the movable groove (22), the baffle (19) is sleeved on the surface of the plug rod (24), a spring (21) is fixedly connected to the top of the baffle (19), the spring (21) is sleeved on the surface of the plug rod (24), and the top of the spring (21) is fixedly connected to the inner wall of the movable groove (22).

6. The heating, ventilating and air conditioning air guide duct for the electromechanical engineering as claimed in claim 1, wherein: circular gaps with the same size are formed in the top and the bottom of the movable groove (22), and the diameter of each circular gap is larger than that of the insertion rod (24) and smaller than that of the movable block (20) and the outer diameter of the baffle (19).

7. The heating, ventilating and air conditioning air guide duct for the electromechanical engineering as claimed in claim 2, wherein: the connecting pipe (1) and the air guide pipe (6) are sleeved with a protective sleeve (7), the clamping plate (9) is of an annular structure, and the clamping plate (9) is sleeved at the joint of the connecting pipe (1) and the air guide pipe (6).

8. The heating, ventilating and air conditioning air guide duct for the electromechanical engineering as claimed in claim 3, wherein: anticorrosive coating (13) constitute for the resin material, heat preservation (14) constitute for the rubber material, anticorrosive coating (13), heat preservation (14) and inlayer (15) thickness are the same.

9. The heating, ventilating and air conditioning air guide duct for the electromechanical engineering as claimed in claim 2, wherein: the width of the inner side of the clamping plate (9) is larger than the sum of the widths of the two annular plates (4).

10. The heating, ventilating and air conditioning air guide duct for the electromechanical engineering as claimed in claim 1, wherein: the inner diameter of one end of each protective sleeve (7) is larger than the outer diameter of each connecting pipe (1) and each air guide pipe (6), the two protective sleeves (7) are connected through connecting plates, and one end of each protective sleeve (7) is made of elastic materials.