TWM549652U - Cantilever type dust collection pipe - Google Patents

Description

Cantilever dust collector

This creation department is related to a kind of ventilation equipment, especially that it can easily adjust the air outlet of the cantilever type dust collecting pipe without any elastic adjustment, and the adjustment operation is simpler, labor-saving and quick and stable. structure.

Press, in many environments, the use of dust collecting pipes, especially cantilevered dust collecting pipes that can be bent and adjusted, such as general electronic laboratories, basic training schools, chemical institutions or barbershops, please refer to the first The figure and the second figure are a multi-joint dust collecting tube which is bend-adjustable and cantilevered, and comprises a multi-section rigid tube body, and the rigid tube body is fixed on the wall surface in the upper part. And a ventilation device (not shown) is connected to each other, and each of the rigid tubes is provided with a joint unit, and the joint unit includes sleeves respectively disposed at the ends of the opposite two rigid tubes, and a hollow hinge joint which can be covered with each other, and a friction ring is respectively disposed between the pivot joints, and a shaft bolt is inserted through the opposite pivot joints, and a ball bearing and a screw lock are arranged through the end. When the adjusting lock handle is tightened, the relative pivot joints can be locked and tightened, and a frictional effect is generated by the friction ring between the clamps, so that when the multi-joint dust collecting pipe is to be adjusted Vent the vent to align it When the wind is in position, one or some or all of the adjustment lock handles may be loosened one by one, and one or some predetermined rigid tubes are rotated to align the air outlets with the desired position of the wind. Then tighten the adjustment lock handle to complete the adjustment operation procedure.

However, as described above, the rotation of each joint unit of the multi-joint dust collecting pipe is required to sequentially perform the loosening of the adjusting handle, the pivoting adjustment of the joint unit, and the locking of the adjusting lock handle. In the three steps, sometimes it is necessary to adjust several joint units at the same time, so that the exhaust port of the dust collecting pipe can be adjusted and positioned at a predetermined position. Therefore, the adjustment operation steps are very complicated and complicated each time the position of the exhausting position is changed. Time-consuming, so the adjustment operation is quite inconvenient, and it is difficult to respond to or meet the needs of various instantaneous immediate ventilation requirements, even delay the best timing of the wind or cause the exhaustion to be ineffective, and secondly, some cantilever The joint unit of the multi-articular dust collecting tube is often located at a higher position, and the user cannot directly adjust it. It is necessary to use a table, a chair or other items for the foot to be able to smoothly adjust, so The inconvenience caused by the adjustment operation is that it is necessary to improve the many inconveniences and shortcomings of the conventional multi-joint dust collecting tubes.

The main purpose of this creation is to provide a cantilever type dust collecting tube which is used to improve the pivoting friction required for the joints, so that the operator can perform any elastic adjustment without having to apply The small force can quickly and easily pull the joint units of the dust collecting tube, so that the air outlet is accurate and stable.

In order to achieve the above object, the cantilever type dust collecting pipe provided by the present invention comprises a plurality of rigid pipe bodies, and the rigid pipe bodies are respectively sleeved with a flexible pipe body, and the rigid pipe bodies are respectively arranged. A joint unit is respectively arranged to pivot the rigid tube body of the lower stage; and the joint unit further comprises: two sets of connecting members, each connecting piece having a fixed end and a pivoting end respectively; The fixing ends of the connecting members are respectively fixed on the outer wall edges of the rigid pipe bodies, and the pivoting ends are respectively provided with a shaft hole, and the two connecting members are respectively opposite. A side stop is disposed on the inner wall edge of the pivoting end, and two friction pads are respectively disposed between the opposite pivotal ends of the two sets of connecting members, and friction surfaces are respectively formed on two sides of the friction pad a pivoting frictional force is generated on the pivotal end wall edge of the connecting member, and a perforation is respectively disposed at a center of the friction pad; a pivoting shaft bolt is respectively inserted through the pivotal end of the two sets of connecting members a shaft hole and a perforation of the friction pads, and the pivot shaft The end of the end is provided with a locking nut, so that the pivoting ends of the connecting members and the friction pads are locked and locked, and a pivoting friction force is generated between the pivoting ends and the friction pad; a torque a spring sleeve is disposed on the middle portion of the pivot pin, and the two ends of the torsion spring respectively have one end portion, and the end portions are respectively disposed on the inner side of the two sets of connecting members, and on the stoppers, The two sets of connectors are subjected to the elastic torsion of the torsion spring to moderately resist the gravity generated by the rigid tubes.

The cantilever type dust collecting pipe provided by the present invention is provided with a torsion spring respectively through the pivot shafts of the joint unit, so that the elastic torque of the torsion springs can be indirectly acted between the two opposite rigid pipes. The vertical gravity of the lower part of the rigid pipe body is offset, thereby reducing the pivoting friction force required for each joint unit, so that the operator can perform only without any elastic adjustment. The smaller force can quickly and easily turn the joint units of the dust collecting tube to make the air outlet accurate and stable.

Referring to Figures 3 to 5, there is disclosed a cantilevered dust collecting pipe 20 comprising:

The plurality of rigid tubular bodies 30 each have an air outlet 31 at both ends.

A plurality of flexible tubular bodies 40 are respectively sleeved between the rigid tubular bodies 30.

An articulation unit 50 is disposed between the rigid tubes 30, and the joint unit 50 has two sets of connecting members 51, and each of the connecting members 51 has a fixed end 511 and a pivot end. 512, wherein the pivoting ends 512 of the connecting members 51 are respectively fixed on the outer wall edges of the two rigid tube bodies 30, and the pivoting ends 512 are respectively provided with a shaft hole 5121, and The two sets of connecting members 51 are respectively connected to the inner wall edges of the pivoting ends 51 on opposite sides, and respectively provided with a stopping member 514, and the stopping members 514 are a locking bolt, and the connecting members 51 A friction pad 52 is disposed between the pivoting ends 51, and a friction surface 521 is formed on each of the two sides of the friction pad 52, so that a pivoting friction is generated on the wall edge of the pivoting end 512 of the connecting member 51, and A through hole 522 is defined in the center of the friction pad 52, and the pivot hole 5121 of the pivoting end 512 and the through hole 522 of the friction pad 52 are threaded through a pivot pin 53 and are at one end of the pivot pin 53. A lock nut 531 is disposed, and the pivot shaft pin 53 is provided with a torsion spring 54 between the connecting members 51, and the two torsion springs 54 Each of the end portions 541 is disposed on the inner side of the two sets of connecting members 51, and the two connecting members 51 are responsive to the torsion spring 54. The elastic torque acts to lock the pivoting end 512 of the connecting member 51 and the friction pads 52 to each other, so as to generate a pivoting friction between the pivoting ends 512 and the friction pad 52.

In order to further understand the characteristics of this creation, the use of technical means and the expected results, we will describe the use of this creation, and believe that we can have a deeper and more specific understanding of this creation, as follows:

Please continue to cooperate with the reference to Figure 6, the cantilever type dust collecting tube 20 has a variety of installation and application methods, such as the wall surface of the laboratory or the work table, etc. In the embodiment of the present invention, the installation is on the wall surface as an example. Generally, a pre-installed exhaust device which can be a dust collector is provided, and in order to reduce the disturbing noise generated by the operation, it is usually installed at a remote location or outdoors, and a delivery line 60 and a dust collector are arranged in the room. The end is connected, and a predetermined number of adapters are disposed on the conveying pipeline 60 as needed, so that the upper portion of the rigid tubular body 30 of the cantilevered dust collecting pipe 20 can be transmitted through the flexible tubular body 40. The adapters are sleeved and coupled to each other. In order to improve the installation rigidity of the dust collecting pipe 20, a fixing seat 70 is usually fixed on the wall surface, and the upper portion of the rigid pipe body 40 and the fixing base 70 are further fixed. The dust collecting pipe 20 can be firmly positioned on the wall surface to prevent the upper portion of the rigid pipe body 30 from falling off from the conveying pipe 60, and the upper portion of the rigid pipe body 30 and the upper portion of the rigid pipe body 30 can be separated from each other. Pivot shift between fixed seats Function, after the cantilevered dust collecting pipe 20 is installed and fixed, the following is to adjust or confirm the pivoting tightness of each joint unit 50, that is, because the gravity of the lower portion of the rigid pipe body 30 can be subjected to the torque The elastic torsion of the spring 54 is moderately offset, so that the frictional force between the pivoting end 512 of the connecting member 51 and the friction pads 52 is small enough to prevent the lower portion of each rigid tubular body 30 from being crushed by gravity. Therefore, before use, the pivoting friction between the pivoting end 512 of the connecting member 51 and the friction pads 52 must be adjusted to be slightly larger than the elastic torque of the torsion spring 54 and the lower portion of the rigid tubular body 30. The absolute value of the joint unit 50 can be locked and fixed, but the force required for the adjustment can be minimized, in other words, when the user wants to lower the rigid tube 30 of the dust collecting tube 20 When the air outlet 31 is adjusted to align with the portion where the air is to be exhausted, please continue to refer to FIGS. 7 to 9 as shown in FIG. 7 to FIG. 9, which need to be applied directly to a specific one of the rigid tubes 30 slightly larger than the above. The force of pivoting friction forces the joint The pair of 50 connecting members 51 are relatively rotated, and the lower portion of the rigid tubular body 30 can be smoothly positioned, so that the lowermost portion of the air outlet 31 of the rigid tubular body 30 is quickly aligned with the desired portion of the wind, due to the above adjustment process. No need for any elastic adjustment as in the case, you can adjust to any position as you like, and achieve a stable positioning effect, so the overall adjustment of the operation is light and labor-saving and fast and stable.

As shown in FIG. 10, in order to make the draft control of the cantilever type dust collecting pipe 20 more efficient, a valve body 32 can be installed at a predetermined position inside the rigid pipe body 30, and the rigid pipe is installed. The swinging handle 321 on the outer side of the body 30 is rotatably linked to control the opening, closing and exhausting amount of the exhaust passage of the dust collecting pipe 20, thereby not only being easy to operate, but also satisfying different ventilation requirements of the user, and further, The position of the air outlet 31 of the lowermost section of the rigid pipe body 30 of the present dust collecting pipe 20 can be more flexibly adjusted and achieve a precise effect, and the joint unit 50 can be further fixed at the end of the rigid pipe body 31. And a flared air hood 90 is connected to the other end of the joint unit 50, and a flexible pipe body 40 is disposed between the end of the rigid pipe body 30 and the exhaust hood 90. Thus, the user Further, by the multi-steering characteristic of the joint unit, the air outlet 31 of the air hood 90 can be quickly and flexibly aligned to any position of the desired air exhaust, so that the operation of the cantilever dust collecting tube 20 can be performed. More flexible, and the benefits it produces are more visible.

Hereby, the characteristics of this creation and its achievable expected effects are stated as follows:

The cantilever type dust collecting pipe 20 of the present invention is configured to fit the torsion spring 54 through the pivot shaft of the joint unit 50 of the dust collecting pipe 20, so that the elastic torque of the torsion springs 54 can act indirectly on the opposite side. Between the rigid tubes 30, the vertical gravity of the lower portion of the rigid tubes 30 is offset, thereby effectively reducing the pivoting friction required by the joint units 50, thereby allowing the operator to do nothing. In the condition of the elastic adjustment, the joint units 50 of the dust collecting pipe 20 can be quickly and easily turned by the small force, so that the air extracting port 31 is accurate and stable.

In summary, this creation has its excellent progress and practicality in similar products. At the same time, it has investigated the technical information about such structures at home and abroad. The same structure has not been found in the literature. This creation has already possessed new types of patent requirements, and applied for it according to law.

However, the above-mentioned ones are only one of the preferred embodiments of the present invention, and the equivalent structural changes in the application of the present specification and the scope of the patent application are intended to be included in the scope of the present patent.

[Use]
10‧‧‧Multi-joint Dust Collector
11‧‧‧Rigid body
111‧‧‧Air outlet
12‧‧‧ joint unit
121‧‧‧ pivoting head
122‧‧‧ Friction ring
123‧‧‧ shaft bolt
124‧‧‧Ball bearings
125‧‧‧Adjust the lock handle [this creation]
20‧‧‧Dust collecting tube
30‧‧‧Rigid body
31‧‧‧Exhaust outlet
32‧‧‧ valve body
321‧‧‧掣动柄
40‧‧‧Flexible pipe
50‧‧‧ joint unit
51‧‧‧Connecting parts
511‧‧‧Fixed end
512‧‧‧ pivot end
5121‧‧‧Axis hole
52‧‧‧Friction pad
521‧‧‧ Friction surface
522‧‧‧Perforation
53‧‧‧ pivot shaft bolt
531‧‧‧Locking nut
54‧‧‧Torque spring
541‧‧‧End
60‧‧‧Transportation line
61‧‧‧Joining device
70‧‧‧ fixed seat
80‧‧‧ joint unit
90‧‧‧Exhaust hood
91‧‧‧Exhaust outlet

Fig. 1 is a combination view of the appearance of a conventional cantilever type dust collecting pipe. Fig. 2 is a perspective exploded view of a conventional joint unit. Figure 3 is a front view of the appearance of the cantilevered dust collecting tube of the present invention. Fig. 4 is a partial perspective exploded view of the joint unit of the present invention. Figure 5 is a side view of the joint unit of the present invention. Fig. 6 is a schematic view showing the installation state of the dust collecting pipe of the present invention. Figure 7 is a schematic diagram of the first action of the spin of the created dust collecting tube. Figure 8 is a schematic diagram of the first action of the spin of the created dust collecting tube. Figure 9 is a schematic diagram of the first action of the spin of the created dust collecting tube. Fig. 10 is a schematic view showing the assembled state of the control valve body, the multi-steer joint unit and the draft hood.

30‧‧‧Rigid body

50‧‧‧ joint unit

51‧‧‧Connecting parts

511‧‧‧Fixed end

512‧‧‧ pivot end

5121‧‧‧Axis hole

513‧‧‧ accommodating gap

514‧‧‧stops

52‧‧‧Friction pad

521‧‧‧ Friction surface

522‧‧‧Perforation

53‧‧‧ pivot shaft bolt

531‧‧‧Locking nut

54‧‧‧Torque spring

541‧‧‧End

Claims (5)

A cantilever type dust collecting pipe comprises a plurality of rigid pipe bodies, and a rigid pipe body is respectively sleeved between the rigid pipe bodies, and a joint unit is respectively arranged between the rigid pipe bodies, so that The rigid pipe body of the lower stage is pivotally actuated, and the main feature is that: the joint unit further comprises: two sets of connecting members, each connecting piece has a fixing end and a pivoting end, and the connecting pieces respectively The fixing ends are respectively fixed on the outer wall edges of the two rigid tube bodies, and the pivoting ends are respectively provided with a shaft hole, and the two sets of connecting parts are respectively connected to the pivoting end by opposite sides. A retaining member is respectively disposed on the inner wall edge; the two friction pads are respectively disposed between the opposite pivotal ends of the two sets of connecting members, and a friction surface is formed on each side of the friction pad to enable the connecting members The pivoting end wall edge generates a pivoting friction force, and a perforation is respectively disposed at a center of the friction pads; a pivoting shaft bolt is respectively inserted through the shaft hole of the pivotal end of the two sets of connecting members and the same a perforation of the friction pad and is provided at one end of the pivot pin a locking nut, such that the pivoting ends of the connecting members and the friction pads are locked to each other, and a pivoting friction force is generated between the pivoting ends and the friction pads; a torsion spring The two ends of the torsion spring are respectively disposed at the inner side of the pivoting shaft, and the ends of the torsion spring are respectively disposed at the inner side of the two sets of connecting members, and the two end portions are respectively disposed on the blocking members The set of connectors can be subjected to the elastic torsion of the torsion spring to moderately resist the gravitational force generated by the rigid tubes. The cantilever type dust collecting pipe according to claim 1, wherein the stopping member is a locking bolt. The cantilever type dust collecting pipe according to claim 1, wherein the end of the rigid pipe body is further provided with the joint unit connected to a draft hood, and the rigid pipe body and the exhaust hood are The connecting sleeve is provided with a flexible pipe body. The cantilever type dust collecting pipe according to the first aspect of the invention, wherein the rigid pipe body is internally provided with a valve body, and the outer side of the rigid pipe body is provided with a tilting handle for interlocking movement. Controlling the opening, closing or exhausting amount of the exhaust passage of the dust collecting pipe. The cantilever type dust collecting pipe according to the first aspect of the invention, wherein the dust collecting pipe is equipped with a drafting device, and the air extracting device is a dust collecting machine and a connecting conveying pipe, wherein the conveying pipe is provided with At least one adapter for direct or indirect engagement of the rigid tube at the uppermost end of the dust collection tube.