Ventilating duct connecting structure for electromechanical engineering
Technical Field
The utility model belongs to the technical field of ventilation ducts, and relates to a ventilation duct connecting structure for electromechanical engineering.
Background
The ventilation pipeline is a metal or composite pipeline for ventilation and air-conditioning engineering of industrial and civil buildings, and is a municipal infrastructure for circulating air and reducing the concentration of harmful gas, and the ventilation pipeline is divided into a steel plate air pipe (common steel plate), a galvanized plate (white iron) air pipe, a stainless steel ventilation pipe, a glass steel ventilation pipe, a plastic ventilation pipe, a composite ventilation pipe, a color steel sandwich heat-insulating plate ventilation pipe, a double-sided aluminum foil heat-insulating ventilation pipe, a single-sided color steel heat-insulating air pipe, a rubberized cloth ventilation pipe (such as a mining air cylinder), a mining plastic ventilation pipe and the like according to materials.
The general ventilation duct is divided into a round or a rectangular shape, the ventilation duct for electromechanical engineering generally adopts white iron ducts, the connection mode between the white iron ducts is mainly fixedly connected through flanges, a snap connection device is arranged in the white iron ducts, the connection mode can well fix the connection between air pipes, but air leakage at a joint can occur in the connection mode, the sealing is poor, the pressure intensity in the pipe is changed, meanwhile, more screws need to be installed in the installation process, and the installation efficiency is low, so the ventilation duct connection structure for electromechanical engineering is provided.
SUMMERY OF THE UTILITY MODEL
In view of the problems in the prior art, the utility model discloses a ventilating duct connecting structure for electromechanical engineering, which adopts the technical scheme that the ventilating duct connecting structure comprises a connecting duct, a clamping device and a ventilating duct; the front and the back of the upper and the lower outer side walls in the middle of the connecting pipeline are respectively and symmetrically provided with an adjusting seat, the middle of the adjusting seat is provided with a threaded hole, the threaded hole penetrates through the pipeline wall, the pipeline wall in the middle of the adjusting seat is provided with a through hole, the left and the right inner side walls of the through hole are symmetrically provided with a groove, a first rubber pad is arranged in the groove, the upper and the lower inner side walls of the connecting pipeline are respectively provided with the clamping device, the clamping device comprises an adjusting screw rod, the front and the back adjusting screw rods penetrate through a pressing plate and are rotationally connected with the pressing plate, the left and the right sides of the side wall on the pressing plate are uniformly provided with a first pressing head, the pressing plate walls on the left and the right sides of the first pressing head are symmetrically grooved and provided with a second rubber pad, the center of the pressing plate is provided with an adjusting rod, the adjusting rod penetrates through the pressing plate, the bottom of the adjusting rod is fixedly connected with a gear, and the front and the pressing plate walls on the left and the right sides of the gear are uniformly provided with screws, the left and right screws are respectively connected with the jacking arm in a sliding manner, one side edge of the jacking arm is uniformly provided with teeth, the left and right side walls of the jacking arm are respectively and fixedly connected with a second jacking head, and the ventilating duct is respectively pressed on the duct walls on the left and right sides of the connecting duct through the upper and lower clamping devices; set up clamping device from top to bottom at the inside wall of connecting tube, through the top pressure arm that clamping device moved from top to bottom and set up around, 4 lateral walls extrusion of air pipe on the left and right sides are on the inside wall of connecting tube, guarantee the leakproofness after the installation, then draw the connection through the first top pressure head, the second top pressure head that set up respectively on clamp plate, the top pressure arm to the air pipe of the left and right sides, guarantee the firm after the installation.
As a preferable scheme of the utility model, the first rubber pad is 2mm higher than the inner side wall of the connecting pipeline; by the design, the front side wall and the rear side wall of the ventilating duct on the left side and the right side can be extruded on the front inner side wall and the rear inner side wall of the connecting duct through the up-and-down movement of the clamping device and the front-and-rear extrusion of the jacking arms arranged in the front-and-rear direction, so that better sealing is formed.
As a preferred scheme of the utility model, a sliding groove is further formed in the middle of the jacking arm, and the screw penetrates through the sliding groove; the jacking arm is in sliding connection with the screw through a sliding groove formed in the middle, and the jacking arm slides forwards and backwards under the action of the intermediate gear.
As a preferable scheme of the utility model, the second rubber pad is 2mm higher than the upper surface of the pressing plate; by the design, the upper side wall and the lower side wall of the ventilating duct on the left side and the right side can be extruded on the upper inner side wall and the lower inner side wall of the connecting duct through the up-and-down movement of the clamping device and the front-and-back extrusion of the jacking arms arranged in the front-and-back direction, so that better sealing is formed.
As a preferable scheme of the present invention, the height of the first top pressure head and the height of the second top pressure head are 1mm smaller than the thickness of the ventilation duct; by the design, the first jacking head and the second jacking head can be tightly extruded on the air pipeline without piercing the pipeline wall of the air pipeline, so that a gap is formed, and air leakage is avoided.
As a preferable scheme of the present invention, the adjusting screw is in threaded connection with the threaded hole; by the design, installation is rapidly completed by installation personnel, operation is simple and convenient, and installation efficiency is improved.
As a preferable scheme of the present invention, the gear is engaged with teeth of the pressing arms on the left and right sides, respectively; the gear in the middle of the adjusting rod is rotated to realize the forward and backward movement of the jacking arms at the left side and the right side, and the front side wall and the rear side wall of the ventilating duct are jacked on the inner side wall of the connecting pipeline.
The utility model has the beneficial effects that: set up clamping device from top to bottom at the inside wall of connecting tube, the back-and-forth movement of the top pressure arm that sets up around and through the removal about clamping device, 4 lateral wall extrusion with the air pipe on left and right sides are on the inside wall of connecting tube, guarantee the leakproofness after the installation, the installation process simultaneously, only need rotatory adjusting screw and regulation pole, form extrusion and sealing connection between air pipe and the connecting tube about just can realizing fast, the installation effectiveness is improved, in addition, through the holding down plate, the first top pressure head that sets up respectively on the top pressure arm, the connection is pull to the air pipe of the left and right sides to the second top pressure head, guarantee the firm after the installation.
Drawings
FIG. 1 is a schematic cross-sectional view of the overall structure of the present invention;
FIG. 2 is a schematic cross-sectional view of a connecting pipe according to the present invention;
FIG. 3 is a schematic view of a clamping device of the present invention;
fig. 4 is a schematic bottom view of the clamping device of the present invention.
In the figure: 1-connecting pipeline, 2-clamping device, 3-ventilating pipeline, 11-adjusting seat, 12-threaded hole, 13-through hole, 14-groove, 15-first rubber pad, 21-adjusting screw rod, 22-pressing plate, 221-first pushing head, 23-second rubber pad, 24-adjusting rod, 25-gear, 26-screw, 27-pushing arm, 271-tooth, 272-second pushing head and 273-sliding groove.
Detailed Description
Example 1
As shown in fig. 1 to 4, the ventilation duct connection structure for electromechanical engineering according to the present invention adopts a technical solution that includes a connection duct 1, a clamping device 2, and a ventilation duct 3; adjusting seats 11 are symmetrically arranged at the front and the back of the upper and the lower outer side walls in the middle of the connecting pipeline 1, a threaded hole 12 is formed in the middle of each adjusting seat 11, the threaded hole 12 penetrates through the pipeline wall, a through hole 13 is formed in the pipeline wall in the middle of each adjusting seat 11, grooves 14 are symmetrically formed in the left and the right inner side walls of each through hole 13, and first rubber pads 15 are arranged in the grooves 14;
the first rubber pad 15 is 2mm higher than the inner side wall of the connecting pipeline 1.
The upper inner side wall and the lower inner side wall of the connecting pipeline 1 are respectively provided with the clamping device 2, the clamping device 2 comprises an adjusting screw 21, the adjusting screw 21 is in threaded connection with the threaded hole 12, the front and the back adjusting screw 21 penetrate through a pressing plate 22 and are rotationally connected with the pressing plate 22, first pressing heads 221 are uniformly arranged on the left and the right sides of the upper side wall of the pressing plate 22, second rubber pads 23 are symmetrically arranged on the pressing plate walls on the two outer sides of the left and the right first pressing heads 221 in a slotted manner, an adjusting rod 24 is arranged in the center of the pressing plate 22, the adjusting rod 24 penetrates through the pressing plate 22, a gear 25 is fixedly connected to the bottom of the adjusting rod 24, screws 26 are uniformly arranged on the front and the back of the pressing plate walls on the left and the right sides of the gear 25, the left and the right screws 26 are respectively in sliding connection with pressing arms 27, one side edge of the pressing arms 27 is uniformly provided with teeth 271, the gear 25 is respectively engaged with the teeth 271 of the pressing arms 27 on the left and the right sides, the left and right side walls of the jacking arm 27 are respectively and fixedly connected with a second jacking head 272, a sliding groove 273 is further formed in the middle of the jacking arm 27, and the screw 26 penetrates through the sliding groove 273;
the second rubber pad 23 is 2mm higher than the upper surface of the pressing plate 22;
the heights of the first and second top pressure heads 221 and 272 are smaller than the thickness of the ventilation duct 3 by 1 mm.
The ventilating duct 3 is respectively pressed on the duct walls at the left side and the right side of the connecting duct 1 through the upper clamping device 2 and the lower clamping device 2.
The working principle of the utility model is as follows: when in use, an installer firstly arranges corresponding mounting holes on the side wall at the interface of the left and right ventilation pipelines 3 according to a first jacking head 221 and a second jacking head 272 arranged on a clamping device 2, then respectively inserts the ventilation pipelines at the left and right sides into the gap between the left and right inner side walls of a connecting pipeline 1 and an upper and lower clamping device 2, then respectively rotates a front and a rear adjusting screw 21 to tightly press an upper and a lower pressing plates 22 and the upper and the lower inner side walls of the connecting pipeline 1, in the pressing process, the upper and the lower side walls of the connecting pipeline 3 are pressed between the pressing plates 22 and the upper and the lower inner side walls of the connecting pipeline 1 and form sealing through a first rubber pad 15 and a second rubber pad 23, then rotates a middle adjusting rod 24 to respectively push out the jacking arms 27 at the front and the rear sides forwards and backwards, and the second jacking heads 272 arranged on the jacking arms 27 tightly press the front and the rear inner side walls of the ventilation pipelines 3 and the front and rear inner side walls of the connecting pipeline 1 and the front and rear sides, and the first rubber pad 15 forms sealing, and simultaneously, a first jacking head 221 arranged on the pressing plate 22 and second jacking heads 272 arranged at the front end and the rear end of the jacking arm 27 respectively jack in mounting holes formed at the interface of the left ventilation pipeline and the right ventilation pipeline, so that left and right connection, traction and fixation are formed.
Electrical connections or structures not described in detail herein are prior art.
Although the present invention has been described in detail with reference to the specific embodiments thereof, the present invention is not limited to the above embodiments, and various changes can be made without departing from the gist of the present invention within the knowledge of those skilled in the art without departing from the scope of the present invention.