CN213360495U - Fan changeover portion with adjustable joint distance - Google Patents

Abstract

The utility model discloses a fan transition section with adjustable connection distance, which comprises a base, wherein the top of the base is fixedly connected with a fan body, one side of the fan body is fixedly connected with a casing front side plate, the transition section is fixedly connected on the casing front side plate, the cross section of the transition section is circular, the surface of the fan is provided with a plurality of positioning holes, the center of the transition section is provided with a transition port which is communicated with the fan body, a connecting section is inserted in the transition port, the connecting section is fixedly connected with a plurality of screws, the connector has been seted up at its center, and the linkage segment has seted up a plurality of screw hole near the one end lateral wall of keeping away from the changeover portion, and screw hole female connection has the threaded rod, and the one end of threaded rod is provided with the grip block, and fixedly connected with spring on the lateral wall of grip block near threaded rod one side, spring other end fixed connection is at the inner wall of linkage segment. The utility model has the characteristics of structural design is reasonable, and stability is high, and the interval is adjustable, extensive applicability etc.

Description

Fan changeover portion with adjustable joint distance

Technical Field

The utility model relates to a fan technical field specifically is a fan changeover portion with adjustable joint distance.

Background

The fan is a driven fluid machine which increases the pressure of gas and discharges the gas by means of input mechanical energy. The blower is a Chinese habit abbreviation for gas compression and gas conveying machinery, and the blower generally comprises a ventilator, a blower and a wind driven generator. Fans are widely used for ventilation, dust exhaust and cooling of factories, mines, tunnels, cooling towers, vehicles, ships and buildings, and for ventilation and draught of boilers and industrial furnaces and kilns; cooling and ventilation in air conditioning equipment and household appliances; drying and selecting grain, wind tunnel wind source and air cushion boat inflating and propelling.

The import department of fan all is provided with the changeover portion usually to be connected the pipeline with the fan, and current fan changeover portion is because structural design's reason, and the interval length of its changeover portion is mostly fixed, can not adjust at will, thereby can't be applicable to the pipe connection of different mouth of pipe lengths, consequently need to improve it promptly.

SUMMERY OF THE UTILITY MODEL

The utility model provides a technical problem lie in overcoming prior art's fan changeover portion structure fixed, and the unable defect of adjusting at will of interattachment provides a fan changeover portion with adjustable interattachment. A fan changeover portion with adjustable connection interval has structural design rationally, and stability is high, and the interval is adjustable, characteristics such as extensive applicability.

In order to achieve the above object, the utility model provides a following technical scheme: a fan transition section with adjustable connection distance comprises a base, wherein the top of the base is fixedly connected with a fan body, one side of the fan body is fixedly connected with a casing front side plate, the casing front side plate is fixedly connected with the transition section, the cross section of the transition section is circular, the surface of the transition section is provided with a plurality of positioning holes, the center of the transition section is provided with a transition port, the transition port is communicated with the fan body, a connection section is inserted into the transition port, the connection section is fixedly connected with a plurality of screws, the center of the connection section is provided with a connecting port, the side wall of the connection section, which is close to one end far away from the transition section, is provided with a plurality of threaded holes, the threaded holes are in threaded connection with threaded rods, one end of each threaded rod is provided with a clamping block, the side wall of the clamping block, which is close, the other end of the connecting rod is fixedly connected with the inner wall of the connecting section.

Preferably, the cross section of the connecting section is circular, the diameter of the connecting section inserted into one end of the transition port is equal to that of the transition port, and a layer of sealing ring is arranged on the surface of the outer wall.

Preferably, the positioning holes are annularly distributed by taking the transition port as a center, the number of the positioning holes is the same as that of the screws, and the aperture of each positioning hole is equal to the diameter of each screw.

Preferably, the centers of the screw and the corresponding positioning hole are located on the same straight line, the screw is in threaded connection with nuts matched with the screw, and the nuts are located on two sides of the side wall of the transition section respectively.

Preferably, the number of the threaded holes and the clamping blocks is three, and the threaded holes and the clamping blocks are annularly distributed by taking the connecting port as the center.

Preferably, the clamping block is arc-shaped, and a plurality of hemispherical rubber blocks are uniformly distributed on the surface of the arc-shaped inner wall of the clamping block.

Preferably, the bottom of the base is provided with a groove, a balancing weight is fixedly connected in the groove, fixing frames are fixedly connected to the side walls of the two sides of the base, the fixing frames are L-shaped, anti-skidding blocks are fixedly connected to the bottom ends of the fixing frames, and herringbone anti-skidding lines are carved on the bottom surfaces of the anti-skidding blocks.

Compared with the prior art, the beneficial effects of the utility model are that:

1. the structure design is reasonable, the stability is high, the weight of the base can be increased through the balancing weight so as to improve the balance of the base, the anti-skid block is contacted with the ground, herringbone anti-skid lines are carved on the surface of the bottom of the anti-skid block, the friction force between the anti-skid block and the ground can be increased so as to further improve the stability of the base, and therefore the anti-skid block is prevented from slipping and shifting;

2. the distance is adjustable, the applicability is wide, the connecting section can move along the transition port, when the connecting section moves, the screw can be driven to move along the positioning hole, the connecting section can be fixed by utilizing the mutual matching between the nut and the screw so as to adjust the connecting distance of the transition section, and therefore pipelines with different pipe orifice lengths can be connected;

3. the centre gripping is firm, can make its end promote the grip block to remove towards the direction of pipeline through rotating the threaded rod along the screw hole, until the grip block tightly supports on the pipe wall of pipeline to it is fixed to carry out the centre gripping to the pipeline with the grip block, thereby prevents that the pipeline from breaking away from in the connector.

Drawings

Fig. 1 is a schematic view of the overall structure of the present invention;

FIG. 2 is a schematic side view of a transition section;

fig. 3 is a side view of the connection section.

Reference numbers in the figures: 1. a base; 2. a fan body; 3. a front side plate of the casing; 4. a transition section; 5. positioning holes; 6. a transition port; 7. a connecting section; 8. a screw; 9. a connecting port; 10. a threaded hole; 11. a threaded rod; 12. A clamping block; 13. a spring; 14. a seal ring; 15. a nut; 16. a balancing weight; 17. a fixed mount; 18. And (4) anti-skid blocks.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Referring to fig. 1-3, the present invention provides a technical solution: a fan transition section with adjustable connection interval comprises a base 1, wherein the bottom of the base 1 is provided with a groove, a balancing weight 16 is fixedly connected in the groove, the weight of the base 1 can be increased through the balancing weight 16 so as to improve the balance of the base, the side walls of the two sides of the base 1 are fixedly connected with a fixing frame 17, the fixing frame 17 is L-shaped, the bottom end of the fixing frame is fixedly connected with an antiskid block 18, the antiskid block 18 is in contact with the ground, the bottom surface of the antiskid block 18 is carved with herringbone antiskid lines which can increase the friction force between the antiskid block 18 and the ground so as to further improve the stability of the base 1 and prevent the antiskid and displacement of the base, the top of the base 1 is fixedly connected with a fan body 2, one side of the fan body 2 is fixedly connected with a casing front side plate 3, the casing front side plate 3 is fixedly connected with a transition section 4, the cross section of the, the transition port 6 is arranged at the center of the transition section 4, the transition port 6 is communicated with the fan body 2, the connecting section 7 is inserted into the transition port 6, the cross section of the connecting section 7 is circular, the diameter of the connecting section 7 inserted into one end of the transition port 6 is equal to the diameter of the transition port 6, the surface of the outer wall is provided with a layer of sealing ring 14, the sealing ring 14 is made of rubber material and can fill the gap between the connecting section 7 and the transition port 6 so as to improve the sealing performance of the transition section 4, the connecting section 7 is fixedly connected with a plurality of screws 8, the positioning holes 5 are annularly distributed by taking the transition port 6 as the center, the number of the positioning holes 5 is the same as that of the screws 8, the aperture of the positioning holes 5 is equal to the diameter of the screws 8, the centers of the screws 8 and the corresponding positioning holes 5 are positioned on the same straight line, the screws 8 can be inserted into the corresponding positioning holes 5, the connecting section 7 can move along the transition port 6, and the screws, the screw 8 is connected with a nut 15 matched with the screw 8 by screw thread, a pair of nuts 15 are respectively positioned at two sides of the side wall of the transition section 4, the nut 15 and the screw 8 are matched with each other to fix the connecting section 7 so as to adjust the connection distance of the transition section 4, a connecting port 9 is arranged at the center of the connecting section 7, a plurality of threaded holes 10 are arranged at the side wall of the connecting section 7 close to the end far away from the transition section 4, threaded rods 11 are connected with the threaded holes 10 by internal thread, one end of each threaded rod 11 is provided with a clamping block 12, springs 13 are fixedly connected on the side wall of the clamping block 12 close to one side of the threaded rod 11, the springs 13 are symmetrically distributed relative to the threaded rods 11, the other ends of the springs are fixedly connected on the inner wall of the connecting section 7, the number of the threaded holes 10 and the clamping blocks 12 is three, the threaded holes, utilize grip block 12 to fix the pipeline to prevent that it from breaking away from connector 9, grip block 12 is the arc, can laminate on the pipe wall of pipeline, and its arc inner wall surface evenly distributed has a plurality of hemisphere block rubber, and the block rubber has elasticity, can take place elastic deformation when receiving the extrusion, thereby can play the effect of buffer protection, too big and damage the pipeline in order to avoid the centre gripping dynamics of grip block 12.

The working principle is as follows: when the utility model is used, the connecting section 7 is firstly inserted into the transition port 6 at the center of the transition section 4, and the screw 8 is aligned and inserted into the corresponding positioning hole 5, then the air guide pipeline is inserted into the connecting port 9 and extends into the transition port 6, then the connecting section 7 is moved along the transition port 6, after the length of the pipe orifice of the pipeline is matched with the connecting space of the transition section 4, the nuts 15 are screwed on the screws 8 and are respectively positioned at the two sides of the side wall of the transition section 4, so as to fix the connecting section 7, then the threaded rod 11 is rotated along the threaded hole 10 to make the tail end of the threaded rod push the clamping block 12 to move towards the direction of the pipeline until the clamping block 12 is tightly pressed against the pipe wall of the pipeline, so as to clamp and fix the pipeline by using the clamping block 12, and the fan body 2 is driven by an external power supply to conduct wind guiding operation through the wind guide pipeline.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims (7)

1. The utility model provides a fan changeover portion with adjustable connection interval, includes the base, its characterized in that: the top of the base is fixedly connected with a fan body, one side of the fan body is fixedly connected with a front side plate of the shell, a transition section is fixedly connected on the front side plate of the shell, the cross section of the transition section is circular, the surface of the fan is provided with a plurality of positioning holes, the center of the transition section is provided with a transition port, the transition port is communicated with the fan body, and a connecting section is inserted into the transition port, a plurality of screws are fixedly connected on the connecting section, a connecting port is arranged at the center of the connecting section, a plurality of threaded holes are arranged on the side wall of one end of the connecting section close to the transition section, a threaded rod is connected with the inner thread of the threaded hole, a clamping block is arranged at one end of the threaded rod, a spring is fixedly connected on the side wall of the clamping block close to one side of the threaded rod, the springs are symmetrically distributed about the threaded rod, and the other ends of the springs are fixedly connected to the inner wall of the connecting section.

2. The fan transition section with the adjustable connection distance of claim 1, characterized in that: the cross section of the connecting section is circular, the diameter of the connecting section inserted into one end of the transition port is equal to that of the transition port, and a layer of sealing ring is arranged on the surface of the outer wall.

3. The fan transition section with the adjustable connection distance of claim 2, characterized in that: the positioning holes are annularly distributed by taking the transition port as a center, the number of the positioning holes is the same as that of the screws, and the aperture of each positioning hole is equal to the diameter of each screw.

4. The fan transition section with the adjustable connection distance of claim 1, characterized in that: the screw and the center of the corresponding positioning hole are positioned on the same straight line, the screw is in threaded connection with a pair of nuts matched with the screw, and the pair of nuts are respectively positioned on two sides of the side wall of the transition section.

5. The fan transition section with the adjustable connection distance of claim 1, characterized in that: the quantity of screw hole and grip block is three, just screw hole and grip block all use the connector to be cyclic annular distribution as the center.

6. The fan transition section with adjustable connection distance of claim 5, characterized in that: the clamping block is arc-shaped, and a plurality of hemispherical rubber blocks are uniformly distributed on the surface of the arc-shaped inner wall of the clamping block.

7. The fan transition section with the adjustable connection distance of claim 1, characterized in that: the bottom of base is seted up flutedly, fixedly connected with balancing weight in the recess, the equal fixedly connected with mount of both sides lateral wall of base, the mount is L shape, and its bottom fixedly connected with non slipping spur, the bottom surface of non slipping spur shape antiskid ribbed tile is carved with chevron shape antiskid ribbed tile.

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