CN220538839U - Prevent down-hole anti-blocking equipment fixed bolster - Google Patents

Abstract

The utility model provides a prevent anti-blocking equipment fixed bolster down in pit, includes annular collapsible installing support, but type telescopic supporting rod, telescoping device, can dismantle the transmission shaft and can dismantle manual rotary rod, annular collapsible installing support supports and fixes at the pipeline inner wall, but the horizontal both ends of but type telescopic supporting rod are fixed at annular collapsible installing support top both ends, but tail end connection telescoping device, but dismantle the transmission shaft stretches into in the telescoping device, and be connected with the inside transmission of but type telescopic supporting rod, but dismantle manual rotary rod stretches into in the telescoping device, and its bottom cover is at but dismantle the transmission shaft top. The device need not personnel and just can realize monitoring facilities's quick installation and dismantlement down in the well to can also increase the stability of device when having reduced the rivers resistance, improve monitoring data's accuracy.

Description

Prevent down-hole anti-blocking equipment fixed bolster

Technical Field

The utility model belongs to monitoring equipment in municipal drainage pipeline systems, and particularly relates to a fixing support of a well-descending-free anti-blocking device.

Background

In municipal drainage pipeline systems, data acquisition of relevant information is required by means of monitoring equipment, and usually the monitoring equipment is required to be installed at the bottom end inside a drainage pipeline, so that most of traditional equipment is required to be installed, maintained and replaced by means of professional personnel to go into the well. However, the internal condition of the drainage pipeline is complex, the environment is bad, especially when the water level in the drainage pipeline is high, the underground condition is difficult to accurately know, and certain potential safety hazards exist in underground installation of personnel. Meanwhile, the traditional monitoring instrument fixing device is mostly L-shaped mounting support rods, the contact area between the device and the pipe wall is small, the fixing point is few, equipment installation is unstable, monitoring equipment is easy to shake and displace to cause unstable and inaccurate monitoring data, and on the other hand, garbage winding and gathering are easy to cause because the mounting support rods are straight rods arranged at the bottom ends of the pipes.

Disclosure of Invention

In order to solve the problems in the prior art, the utility model provides the anti-blocking equipment fixing support without descending in the pit, the device can realize the rapid installation and disassembly of monitoring equipment without descending in the pit by personnel, the stability of the device can be improved while the water flow resistance is reduced, and the accuracy of monitoring data is improved.

The technical scheme of the utility model is as follows: the utility model provides a prevent anti-blocking equipment fixed bolster down-hole which characterized in that: including annular collapsible installing support, but type telescopic supporting rod, telescoping device, detachable transmission shaft and can dismantle manual rotary rod, annular collapsible installing support supports and fixes at the pipeline inner wall, but the horizontal both ends of but type telescopic supporting rod are fixed at annular collapsible installing support top both ends, but tail end connection telescoping device, detachable transmission shaft stretches into in the telescoping device, and is connected with the inside transmission of but type telescopic supporting rod, detachable manual rotary rod stretches into in the telescoping device, and its bottom cover is in detachable transmission shaft top.

Preferably, the annular retractable mounting bracket comprises an upper elastic steel sheet and a lower elastic steel sheet, wherein the two elastic steel sheets are overlapped through a lantern ring and fastened through a butterfly bolt to form a semi-annular structure.

Preferably, the upper elastic steel sheet is provided with a butterfly bolt hollow groove, the lower elastic steel sheet is fixed with a butterfly bolt, and the two elastic steel sheets are overlapped up and down through the lantern ring and pass through the butterfly bolt hollow groove of the upper elastic steel sheet through the butterfly bolt on the lower elastic steel sheet to realize the regulation and fastening of radian.

Preferably, the middle part of the upper elastic steel sheet is provided with an equipment mounting groove.

Preferably, the two elastic steel sheets are arc-shaped deformable elastic steel sheets, and the outer surfaces of the two elastic steel sheets are fixed with rubber sheets.

Preferably, the T-shaped telescopic support rod consists of an inner telescopic rod, an outer transverse support sleeve, an outer longitudinal support sleeve, a T-shaped bevel gear steering device and an L-shaped bevel gear steering device, wherein the inner telescopic rod is respectively installed at two ends of the inner part of the outer transverse support sleeve, a rotating shaft is connected between the inner support rods at two ends, the T-shaped bevel gear steering device is fixed in the middle of the rotating shaft, and the L-shaped bevel gear steering device is installed inside the outer longitudinal support sleeve and connected with the T-shaped bevel gear steering device through a transmission shaft.

Preferably, the two ends of the outer transverse support sleeve are provided with sliding grooves, and the two ends of the inner telescopic rod are provided with sliding convex grooves which are meshed with the sliding convex grooves.

Preferably, the inner telescopic rod is internally provided with threads, the surfaces of the two ends of the rotating shaft are provided with threads in the opposite direction to the threads in the inner telescopic rod, and the inner telescopic rod is in threaded connection with the rotating shaft.

Preferably, the T-shaped bevel gear steering device consists of two bevel gears.

Preferably, the L-shaped bevel gear steering device consists of two bevel gears and an input shaft.

Preferably, the multi-section support rod and the telescopic multi-section fixing rod are hollow cylindrical structures.

Preferably, the tail end of the detachable transmission shaft is of a sleeve structure.

Preferably, the bottom end structure of the detachable manual rotary rod is a sleeve structure, and the tail end of the detachable manual rotary rod is sleeved on the top end of the detachable transmission shaft.

Preferably, the telescopic device is a telescopic fixed rod, the telescopic fixed rod is formed into a telescopic structure by an outer sleeve and an inner sleeve, and a limiting elastic sheet is arranged on the wall of the inner sleeve.

Preferably, the bottom of the telescopic fixed rod is connected with a plurality of sections of supporting rods, a detachable transmission shaft stretches into the plurality of sections of supporting rods, and the detachable transmission shaft is connected with a transmission device inside the T-shaped telescopic supporting rod.

The utility model has the following advantages and positive effects:

1. the operator can adjust the size of annular collapsible installing support according to the pipeline diameter outside the well, realizes taking out and installing monitoring facilities through the scalable multisection dead lever in operation top, turns to the device and carries out the transmission with T type umbrella tooth through rotatory detachable rotation axis and L type umbrella tooth, realizes the flexible of but type flexible bracing piece to reach the fixed and dismantlement of equipment and support, thereby realize monitoring facilities's installation and take out, whole operation need not personnel and just can realize down the well, thereby guaranteed personnel's safety.

2. The two ends of the top of the annular retractable mounting bracket are fixedly provided with the T-shaped retractable supporting rods, and when the T-shaped retractable supporting rods are extended, the annular retractable mounting bracket can be expanded to enable the annular retractable mounting bracket to be supported and fixed on the inner surface of the pipe wall. And the rubber sheets are fixed on the outer surfaces of the two elastic steel sheets of the annular contractible mounting bracket, so that the buffering force and the friction force can be improved, the stability is good, and the impact of extra vibration is not easy to happen.

3. The annular retractable mounting bracket is provided with the monitoring equipment mounting groove, so that the annular retractable mounting bracket can be suitable for various monitoring equipment, and the annular retractable mounting bracket can also be provided with the equipment mounting groove to realize the simultaneous installation of multiple equipment.

4. The annular retractable mounting bracket can manually adjust the required diameter and length, and the annular retractable mounting bracket is screwed and fixed after the butterfly bolts on the lower steel sheet pass through the butterfly bolt hollow grooves of the upper steel sheet so as to adapt to circular pipelines with different diameters.

5. The annular contractible mounting bracket is fixed on the inner wall of the pipeline in an annular manner, does not influence the flow state of fluid in the pipeline, and can reduce the aggregation of garbage.

5. The utility model is fixed by multi-point support, firstly, the annular contractible mounting bracket is fixed on the support of the pipe wall, secondly, the T-shaped contractible supporting rod is fixed on the pipe wall by extending the support, thirdly, the contractible fixing rod is fixed on the well wall, so the whole device has strong stability.

6. According to the telescopic fixed rod, the limiting elastic piece is arranged in the bottom end of the telescopic fixed rod, when the detachable rotating rod stretches into the telescopic fixed rod to be combined with the transmission shaft, the limiting elastic piece automatically bounces off, the transmission shaft can rotate along with the detachable rotating rod, when the detachable rotating rod is taken out, the limiting elastic piece automatically rebounds, and the transmission shaft is locked to prevent rotation caused by other factors, so that the stability of the device is enhanced.

Drawings

FIG. 1 is a schematic installation view of the present utility model;

FIG. 2 is a schematic diagram of the structure of the present utility model;

FIG. 3 is a schematic view of the installation of the annular collapsible mounting bracket and the T-shaped telescoping support bar;

FIG. 4 is a schematic view of an upper layer of elastomeric steel sheet in an annular collapsible mounting bracket;

FIG. 5 is a schematic view of the structure of the T-shaped telescopic support bar;

FIG. 6 is a schematic view of the structure of an L-shaped bevel gear steering device;

FIG. 7 is a schematic illustration of the connection of the outer lateral support sleeve with the inner telescoping rod;

FIG. 8 is a schematic view of a structure of a multi-section support bar;

FIG. 9 is a schematic view of the structure of a telescopic rod;

FIG. 10 is a schematic view of a removable drive shaft and a removable rotary lever connection;

fig. 11 is a schematic view of the installation of a removable drive shaft.

In the figure: 1. ground surface; 2. a well wall; 3. a tube wall; 4. an annular retractable mounting bracket; 4.1. an elastic steel sheet 1;4.2. an equipment installation groove; 4.3. a steel sheet fixing collar; 4.4. a butterfly bolt; 4.5. an elastic steel sheet 2;4.6. a hollow groove of the butterfly bolt; 5. a T-shaped telescopic support rod; 5.1. an inner telescopic rod; 5.2. a sliding groove; 5.3. a rotation shaft; 5.4. a transmission shaft; 5.5. sliding convex groove; 5.6. an outer transverse support sleeve; 5.7. an outer longitudinal support sleeve; 5.8. umbrella teeth 1;5.9. umbrella teeth 2;5.10. umbrella teeth 3;5.11. umbrella teeth 4; an output shaft of an L-shaped bevel gear steering device; the top end of an input shaft of the L-shaped bevel gear steering device; 6.1. a plurality of sections of support rods; 7. a retractable fixing rod; 7.1. an outer sleeve of the telescopic fixed rod; 7.2. an inner sleeve of the telescopic fixed rod; 7.3. a limiting spring plate; 8. a circular clamp; 9. a detachable transmission shaft; 9.1. a sleeve structure at the bottom end of the transmission shaft; 9.2. the top end of the transmission shaft; 10. a detachable manual rotary lever; 10.1. a detachable sleeve structure at the bottom end of the manual rotary rod; 10.2. a hand grip.

Detailed Description

Referring to fig. 1-11, the utility model provides a fixing bracket for a downhole-free anti-blocking device, which comprises an annular retractable mounting bracket 4, a T-shaped retractable supporting rod 5 for controlling the annular retractable mounting bracket, a plurality of sections of supporting rods 6, a retractable fixing rod 7 connected with the T-shaped retractable supporting rod and capable of being fixed on a well wall, a detachable transmission shaft 9 and a detachable manual rotating rod 10. The annular retractable mounting bracket 4 is supported and fixed on the inner wall 3 of the pipeline, the two transverse ends of the T-shaped retractable supporting rod 5 are fixed at the two ends of the top of the annular retractable mounting bracket 4, the tail end of the T-shaped retractable supporting rod is connected with the multi-section supporting rod 6 or the retractable multi-section fixing rod 7 through the round clamp 8, and meanwhile, the multi-section supporting rod 6 can also be connected with the retractable fixing rod through the round clamp 8. The circular clamp 8 can be fixed on the well wall 2 through expansion screws, the detachable transmission shaft 9 stretches into a plurality of support rods or telescopic multi-section fixing rods and is connected with the T-shaped telescopic support rods 5, and the bottom end of the detachable manual rotary rod 10 is sleeved at the top end of the detachable transmission shaft 9. The annular retractable mounting bracket 4 is retracted in the radial direction, the T-shaped retractable support rod 5 is retracted in the transverse direction, and the retractable fixing rod 7 is retracted in the longitudinal direction.

In this embodiment, the annular retractable mounting bracket 4 includes an upper layer of elastic steel sheet 4.1 and a lower layer of elastic steel sheet 4.5, and the two elastic steel sheets are overlapped to form a semi-annular structure. The upper elastic steel sheet 4.1 is provided with a butterfly bolt hollow groove 4.6 along the arc length direction, the middle part is provided with an equipment installation groove 4.2, one end of the elastic steel sheet 4.5 is provided with a steel sheet fixing collar 4.3, the middle part is provided with a steel sheet butterfly bolt 4.4, when the device is installed, the elastic steel sheet 4.1 penetrates through the steel sheet fixing collar 4.3, the butterfly bolt 4.4 penetrates through the butterfly bolt hollow groove 4.6 to screw, an annular retractable installation support is fixed to be in a required size, and two ends of the top of each of the two elastic steel sheets are fixed with a T-shaped retractable support rod 5. The two elastic steel sheets are arc-shaped deformable elastic steel sheets, and rubber sheets are fixed on the outer surfaces of the two elastic steel sheets so as to increase friction force between the contractible mounting bracket and the pipe wall and provide buffering and damping capacity.

The T-shaped telescopic support rod 5 is composed of an inner telescopic rod 5.1, an outer transverse support sleeve 5.6, an outer longitudinal support sleeve 5.7, a T-shaped bevel gear steering device and an L-shaped bevel gear steering device, wherein the inner telescopic rod is respectively installed at two ends of the inner part of the outer transverse support sleeve 5.6, a rotating shaft 5.3 is connected between the inner support rods at two ends, the rotating shaft 5.3 is used as an output shaft middle part to be fixed with the T-shaped bevel gear steering device, and the L-shaped bevel gear steering device is installed inside the outer longitudinal support sleeve and is connected with the T-shaped bevel gear steering device through a transmission shaft 5.4. The two ends of the outer transverse supporting sleeve 5.6 are provided with sliding grooves 5.2, the two ends of the inner telescopic rod 5.1 are provided with sliding convex grooves 5.5, and the sliding grooves 5.2 are meshed with the sliding convex grooves 5.5 so as to limit the rotation of the inner telescopic rod 5.1 to realize sliding telescopic. The inside telescopic link 5.1 is equipped with the screw thread, rotation axis 5.3 both ends surface have with inside telescopic link 5.1 inside screw thread opposite direction screw thread, inside telescopic link and rotation axis 5.3 threaded connection. The T-shaped bevel gear steering device consists of a bevel gear 5.8 and a bevel gear 5.9 and is connected with an internal telescopic rod 5.1 through a rotating shaft 5.3, and the L-shaped bevel gear steering device consists of a bevel gear 5.9, a bevel gear 5.10 and an input shaft 5.12 and is connected with the T-shaped bevel gear steering device through a transmission shaft 5.4. When the L-shaped bevel gear steering device rotates, the transmission shaft drives the output shaft of the T-shaped bevel gear steering device, namely the threaded rotating shaft 5.3 to rotate, and due to the existence of the sliding groove, the threaded rotating shaft can realize the transverse movement of the outer transverse support sleeve 5.6 and the outer longitudinal support sleeve 5.7 to achieve the telescopic purpose of the inner telescopic rod 5.1. The annular retractable mounting bracket 4 can be unfolded after the T-shaped retractable support rod 5 is extended, so that the annular retractable mounting bracket is supported and fixed on the pipe wall 3.

The tail end of the T-shaped telescopic supporting rod 5 is connected with the multi-section supporting rod 6 or the telescopic fixing rod 7 through a round clamp 8. On the one hand, the length of the fixed length can be prolonged and shortened by increasing the number of the sections of the multi-section supporting rod 6, and on the other hand, more refined length adjustment can be realized by the telescopic function of the telescopic fixed rod 7. The multi-section supporting rod 6 and the telescopic fixing rod 7 are hollow cylindrical structures, and the inside of the telescopic fixing rod can extend into the cylindrical detachable transmission shaft 9.

The bottom end 10.1 of the detachable manual rotary rod 10 has the same structure as the tail end 9.1 of the detachable transmission shaft 9. Therefore, after the bottom end 10.1 of the detachable manual rotary rod 10 is sleeved on the top end 9.2 of the detachable transmission shaft 9, the linkage of the detachable transmission shaft 9 and the L-shaped bevel gear steering device can be realized by rotating the detachable manual rotary rod 10, and the telescopic function of the T-shaped telescopic support rod 5 is further realized.

The top end structure 9.2 of the detachable transmission shaft 9 is identical to the structure of the top end 5.13 of the input shaft of the L-shaped bevel gear steering device, the tail end 9.1 of the detachable transmission shaft 9 is of a sleeve structure, and the inner shape of the sleeve structure is identical to the shape of the top end 5.13 of the input shaft of the L-shaped bevel gear steering device. So can dismantle the transmission shaft 9 both can be connected with L type umbrella tooth steering device's input shaft top 5.13, simultaneously, can also mutual end to end between the transmission shaft 9 that can dismantle, consequently only need rotate the transmission shaft at top through dismantling manual rotary rod, can realize the linkage of each transmission shaft and L type umbrella tooth steering device, and then realize the flexible support of whole device and fix.

The inside limit shrapnel 7.3 that exists in scalable dead lever 7 bottom, after detachable transmission shaft 9 installs in multisection bracing piece 6 inside, connect multisection bracing piece 6 and scalable dead lever 7, limit shrapnel 7.3 can restrict the rotation of transmission shaft 9. When the cylindrical detachable manual rotary rod 10 is sleeved on the top end 9.2 of the transmission shaft, the limiting elastic sheet 7.3 can be jacked up, the transmission shaft 9 is rotated through the detachable manual rotary rod 10, and the telescopic of the T-shaped telescopic support rod 5 is realized through the transmission inside the whole device. After the T-shaped telescopic support rod 5 is adjusted to a proper length to support the annular telescopic mounting bracket 4 to be fixed on the pipe wall 3, the detachable manual rotary rod 10 is taken out, the limiting elastic piece 7.3 automatically resets to limit the rotation of the transmission shaft 9 again, and the whole device is prevented from being loosened due to vibration after being mounted, so that the fixing stability of the device is enhanced.

The operation flow of the utility model is as follows: after the well lid is opened, the size of the lower pipeline is observed, the annular retractable mounting bracket 4 is adjusted to the required size in advance, the annular retractable mounting bracket is fixed through the butterfly bolts 4.4, and the monitoring equipment is mounted in the equipment mounting groove 4.2.

The multi-section supporting rod 6 is connected with the T-shaped telescopic supporting rod 5 through the circular clamp 8, and the detachable transmission shaft 9 extends into the multi-section supporting rod 6 and is sleeved on the top end 5.13 of the input shaft of the L-shaped bevel gear steering device. According to the distance between the pipeline and the ground, the multi-section supporting rods 6 with proper sections are increased or reduced, and the corresponding detachable transmission shafts are connected. Finally, the telescopic fixed rod 7 is connected with the multi-section supporting rod 6 through the round clamp 8. When the height of the pipeline is shorter from the ground, the telescopic fixed rod 7 can be directly connected with the T-shaped telescopic support rod 5 through the circular clamp. At this time, the limiting spring piece 7.3 can clamp the detachable transmission shaft 9 or the input shaft 5.12 of the L-shaped bevel gear steering device to limit the rotation of the detachable transmission shaft 9 or the L-shaped bevel gear steering device.

The installed annular retractable mounting support 4 and the T-shaped retractable support rod 5 extend into the pipeline by utilizing the multi-section support rod 6, after the position is adjusted, the telescopic support rod 7 extends into the detachable manual rotary rod 10, and the telescopic support rod is combined with the top end 9.2 of the detachable transmission shaft 9 after the limiting elastic sheet 7.3 is bounced. The detachable rotary rod 10 is rotated to drive the detachable transmission shaft 9 to realize rotation of the device, the L-shaped bevel gear steering device and the T-shaped bevel gear steering device are driven to rotate, and further the extension of the T-shaped telescopic support rod 5 is realized, and the annular telescopic mounting support 4 is unfolded and fixed on the pipe wall 3. Then after the telescopic fixed rod 7 is fixed on the well wall through the round clamp 8, the detachable manual rotary rod 10 is taken out, the limiting elastic sheet 7.3 is reset at the moment, the rotary shaft is locked to rotate, and the installation of the whole device is finished.

After the sleeve 10.1 at the bottom end of the detachable manual rotary rod 10 stretches into the top end 9.2 of the detachable transmission shaft, the sleeve rotates in the opposite direction, so that the T-shaped telescopic support rod 5 can be shortened, and the annular telescopic mounting support is separated from the inner wall of the pipeline at the moment, so that the whole mounting device can be taken out.

Finally, the utility model adopts the mature products and the mature technical means in the prior art.

The foregoing is merely a preferred embodiment of the present utility model and it should be noted that modifications and adaptations to those skilled in the art may be made without departing from the principles of the present utility model, which are intended to be comprehended within the scope of the present utility model.

Claims (14)

1. The utility model provides a prevent anti-blocking equipment fixed bolster down-hole which characterized in that: including annular collapsible installing support, but type telescopic supporting rod, telescoping device, detachable transmission shaft and can dismantle manual rotary rod, annular collapsible installing support supports and fixes at the pipeline inner wall, but the horizontal both ends of but type telescopic supporting rod are fixed at annular collapsible installing support top both ends, but tail end connection telescoping device, detachable transmission shaft stretches into in the telescoping device, and is connected with the inside transmission of but type telescopic supporting rod, detachable manual rotary rod stretches into in the telescoping device, and its bottom cover is in detachable transmission shaft top.

2. The downhole-free anti-clogging device mounting bracket of claim 1, wherein: the annular retractable mounting bracket comprises an upper elastic steel sheet and a lower elastic steel sheet, wherein the two elastic steel sheets are overlapped through a lantern ring and fastened through a butterfly bolt to form a semi-annular structure.

3. The downhole-free anti-clogging device mounting bracket of claim 2, wherein: the upper elastic steel sheet is provided with a butterfly bolt hollow groove, the lower elastic steel sheet is fixed with a butterfly bolt, and the two elastic steel sheets are overlapped up and down through the lantern ring and pass through the butterfly bolt hollow groove of the upper elastic steel sheet through the butterfly bolt on the lower elastic steel sheet to realize the regulation and fastening of radian.

4. The downhole-free anti-clogging device mounting bracket of claim 2, wherein: the middle part of the upper elastic steel sheet is provided with an equipment mounting groove.

5. The downhole-free anti-clogging device mounting bracket of claim 2, wherein: the two elastic steel sheets are arc-shaped deformable elastic steel sheets, and rubber sheets are fixed on the outer surfaces of the two elastic steel sheets.

6. The downhole-free anti-clogging device mounting bracket of claim 1, wherein: the T-shaped telescopic support rod consists of an inner telescopic rod, an outer transverse support sleeve, an outer longitudinal support sleeve, a T-shaped bevel gear steering device and an L-shaped bevel gear steering device, wherein the inner telescopic rod is respectively installed at two ends of the inner part of the outer transverse support sleeve, a rotating shaft is connected between the inner support rods at two ends, the T-shaped bevel gear steering device is fixed in the middle of the rotating shaft, and the L-shaped bevel gear steering device is installed inside the outer longitudinal support sleeve and connected with the T-shaped bevel gear steering device through a transmission shaft.

7. The no-down-hole anti-clogging device mounting bracket of claim 6, wherein: the outside transversely supports sleeve both ends and is equipped with the slip recess, inside telescopic link both ends are equipped with the slip tongue, and slip recess and slip tongue interlock mutually.

8. The no-down-hole anti-clogging device mounting bracket of claim 6, wherein: the inside telescopic link is inside to be equipped with the screw thread, rotation axis both ends surface have with inside telescopic link internal thread opposite direction screw thread, inside telescopic link and rotation axis threaded connection.

9. The no-down-hole anti-clogging device mounting bracket of claim 6, wherein: the T-shaped bevel gear steering device consists of two bevel gears.

10. The no-down-hole anti-clogging device mounting bracket of claim 6, wherein: the L-shaped bevel gear steering device consists of two bevel gears and an input shaft.

11. The downhole-free anti-clogging device mounting bracket of claim 1, wherein: the tail end of the detachable transmission shaft is of a sleeve structure.

12. The downhole-free anti-clogging device mounting bracket of claim 1, wherein: the manual rotary rod bottom structure is sleeve structure, and its tail end cover is to detachable transmission shaft top.

13. The downhole-free anti-clogging device mounting bracket of claim 1, wherein: the telescopic device is a telescopic fixed rod, the telescopic fixed rod is of a telescopic structure formed by an outer sleeve and an inner sleeve, a limiting elastic sheet is arranged on the wall of the inner sleeve, and the telescopic fixed rod is of a hollow cylindrical structure.

14. The no-down-hole anti-clogging device mounting bracket of claim 13, wherein: the bottom of the telescopic fixed rod is connected with a plurality of sections of support rods, a detachable transmission shaft extends into the plurality of sections of support rods, the detachable transmission shaft is connected with a transmission device inside the T-shaped telescopic support rod, and the plurality of sections of support rods are of hollow cylinder structures.