CN220278363U - Improved flush knife - Google Patents
Improved flush knife Download PDFInfo
- Publication number
- CN220278363U CN220278363U CN202321847670.8U CN202321847670U CN220278363U CN 220278363 U CN220278363 U CN 220278363U CN 202321847670 U CN202321847670 U CN 202321847670U CN 220278363 U CN220278363 U CN 220278363U
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- China
- Prior art keywords
- positioning
- twist drill
- flush
- drill head
- fixedly arranged
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- 230000007246 mechanism Effects 0.000 claims abstract description 8
- 238000000034 method Methods 0.000 claims abstract description 3
- 238000003780 insertion Methods 0.000 claims description 18
- 230000037431 insertion Effects 0.000 claims description 18
- 238000011010 flushing procedure Methods 0.000 abstract description 3
- 239000002699 waste material Substances 0.000 abstract description 3
- 230000008859 change Effects 0.000 abstract description 2
- 239000000463 material Substances 0.000 abstract description 2
- 230000008569 process Effects 0.000 abstract description 2
- 238000012545 processing Methods 0.000 abstract description 2
- 238000004519 manufacturing process Methods 0.000 description 3
- 238000005553 drilling Methods 0.000 description 2
- 239000012530 fluid Substances 0.000 description 2
- 238000003466 welding Methods 0.000 description 2
- 230000004075 alteration Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 238000012546 transfer Methods 0.000 description 1
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- Drilling And Boring (AREA)
Abstract
The utility model relates to the technical field of heat exchanger processing, and discloses an improved flush knife. Comprising the following steps: the twist drill comprises a twist drill handle and a twist drill body fixedly arranged at the top of the twist drill handle, and a twist drill head fixedly arranged at the top of the twist drill body; the flush part is arranged above the twist drill head; the positioning part is fixedly arranged at the bottom of the flush part and is matched with the opening of the positioning groove; and the positioning groove is used for limiting the positioning part in the hole of the positioning groove. This application sets up the twist drill head that is the cylindricality structure with its bottom of traditional twist drill body to set up a set of detachable location portion and flush portion at the top of twist drill head, stretched into to the heat exchange tube through flush portion and accomplish the flush work, moreover through positioning mechanism, can lock the locating portion and die in the inslot of constant head tank, thereby improve flush portion and rotatory the stability of flushing the working process, the while is convenient to carry out timely dismantlement change to the serious flush portion of wearing and tearing, reduces the waste of material, improves the utilization ratio.
Description
Technical Field
The utility model relates to the technical field of heat exchanger processing, in particular to an improved flush knife.
Background
The heat exchanger is a device for transferring part of heat of hot fluid to cold fluid, and is classified according to heat transfer principle and is divided into a direct contact heat exchanger, a compound heat exchanger and the like; the heat exchanger is classified into a floating head type heat exchanger, a fixed tube plate type heat exchanger, a U-shaped tube plate type heat exchanger, a plate type heat exchanger and the like according to the structure.
In the manufacture of the heat exchanger, the welding of the heat exchange tube and the tube plate is the most important control point, and the accident time of stopping production and repairing of the whole production line is long because of the leakage of the fillet weld between the heat exchange tube and the tube plate, and the flushing of the heat exchange tube is a great important factor influencing the welding.
Utilize drill bit and drilling machine, make the drill bit can stretch into the heat exchange tube of heat exchanger in, accomplish the flush work with the heat exchange tube through the rotation of drill bit, and flush work mainly utilizes the top of drill bit, and long-time wearing and tearing can lead to flush work to receive the influence, and longer drill bit can't continue to use and have certain waste.
Disclosure of Invention
In view of the shortcomings of the prior art, the present utility model provides an improved flush knife that solves the problems noted in the background above.
The utility model provides the following technical scheme: comprising the following steps: a twist drill handle and a twist drill body fixedly arranged at the top of the twist drill handle,
the twist drill head is fixedly arranged at the top of the twist drill body;
the flush part is arranged above the twist drill head;
the positioning part is fixedly arranged at the bottom of the flush part and is matched with the opening of the positioning groove;
the positioning groove is formed in the top of the head of the twist drill;
the positioning mechanism is arranged on the outer side of the twist drill head and used for limiting the positioning part in the hole of the positioning groove.
Further, the twist drill head adopts a cylindrical structure.
Furthermore, the positioning part adopts a rectangular structure, and the lower end of the positioning part is attached to the bottom of the positioning groove so that the bottom of the flush part is attached to the upper end part of the twist drill head.
Further, the outer diameter of the flush part is 2mm smaller than the inner diameter of the heat exchange tube.
Further, positioning mechanism includes locating hole, location jack, location insert body, positioning screw and positioning nut body, the locating hole is seted up in the both sides of location portion, the location jack is seted up in the both sides of fluted drill head, and the location insert body sets up in the both sides of fluted drill head, and positioning screw fixes in the one end of location insert body, and positioning nut body cover is established in the outside of positioning screw.
Further, the two groups of positioning jacks are communicated with the inside of the positioning groove, the positioning nut body is in threaded connection with the positioning screw rod, and the positioning plug body is matched with the opening of the positioning hole.
Compared with the prior art, the utility model has the following beneficial effects:
this application sets up the twist drill head that is the cylindricality structure with its bottom of traditional twist drill body to set up a set of detachable location portion and flush portion at the top of twist drill head, stretched into to the heat exchange tube through flush portion and accomplish the flush work, moreover through positioning mechanism, can lock the locating portion and die in the inslot of constant head tank, thereby improve flush portion and rotatory the stability of flushing the working process, the while is convenient to carry out timely dismantlement change to the serious flush portion of wearing and tearing, reduces the waste of material, improves the utilization ratio.
Drawings
FIG. 1 is a schematic diagram of the structure of the present utility model;
FIG. 2 is a side view of the present utility model;
fig. 3 is an enlarged view of the head of the twist drill of the present utility model.
In the figure: 1. twist drill handles; 2. twist drill body; 3. a twist drill head; 4. a flush portion; 5. a positioning part; 6. a positioning groove; 7. positioning holes; 8. positioning the jack; 9. positioning the inserting rod body; 10. positioning a screw; 11. and positioning the nut body.
Detailed Description
The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.
Referring to figures 1-3 of the drawings,
comprising the following steps: the twist drill comprises a twist drill handle 1 and a twist drill body 2 fixedly arranged at the top of the twist drill handle 1, wherein a rectangular plug is arranged at one end of the twist drill handle 1 far away from the twist drill body 2 and used for being combined with a drilling machine, and a twist drill head 3 is fixedly arranged at the top of the twist drill body 2 and is in a cylindrical structure; the flush part 4 is arranged above the twist drill head part 3 and is in a cylindrical structure; the positioning part 5 is fixedly arranged at the bottom of the flush part 4 and is in a rectangular structure and is positioned at the central part of the flush part 4, the positioning part 5 is matched with an opening of the positioning groove 6, after the positioning part 5 is longitudinally inserted into the bottom of the groove of the positioning groove 6, the peripheral area of the lower end surface of the flush part 4 is attached to the upper end part of the twist drill head part 3, so that the twist drill head part 3 and the flush part 4 form an upper group and a lower group of cylindrical structures which are close to each other, the diameter of the outermost ring of the flush part 4 is smaller than the inner diameter of a heat exchange pipe orifice at the heat exchanger by 2mm, and the flush part 4 can extend into the heat exchange pipe; the positioning groove 6 is arranged at the top of the twist drill head 3 and is in a rectangular groove-shaped structure; the positioning mechanism is arranged on the outer side of the twist drill head 3 and used for limiting the positioning portion 5 in the hole of the positioning groove 6, the positioning mechanism comprises a positioning hole 7, positioning insertion holes 8, positioning insertion rods 9, positioning screws 10 and positioning nut bodies 11, the positioning holes 7 are formed in the two sides of the positioning portion 5, the positioning insertion holes 8 are formed in the two sides of the twist drill head 3, the positioning insertion rods 9 are arranged on the two sides of the twist drill head 3, the positioning screws 10 are fixedly arranged at one ends of the positioning insertion rods 9, the positioning nut bodies 11 are sleeved outside the positioning screws 10, two groups of positioning insertion holes 8 are communicated with the inside of the positioning groove 6, the positioning nut bodies 11 are in threaded connection with the positioning screws 10, the positioning insertion rods 9 are matched with the holes of the positioning hole 7, after the positioning portion 5 is clamped into the groove of the positioning groove 6, the positioning insertion holes 8 are communicated with the positioning groove 6, and meanwhile the positioning insertion holes 8 are positioned on the same straight line with the positioning groove 6, at the moment, the positioning insertion rods 9 can extend inwards from the openings of the positioning insertion rods 8, the front ends of the positioning insertion rods 9 are abutted to the positioning holes 7, the positioning screw 10 are fixedly arranged at one ends of the positioning holes 9, the positioning screw 10 are fixedly arranged on the outer sides of the positioning screw 10, the positioning screw 10 are in the positioning groove 10, the positioning groove 10 is positioned by means of the position groove 10, and the positioning insertion holes 4 can be completely aligned with the positioning screw 4, and can be completely replaced by the positioning screw 10, and the positioning holes 4 are positioned by the positioning holes 4 and can be aligned with the positioning holes 3 by the positioning holes 4.
Although embodiments of the present utility model have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made therein without departing from the principles and spirit of the utility model, the scope of which is defined in the appended claims and their equivalents.
Claims (6)
1. An improved flush knife comprising: twist drill handle (1) and twist drill body (2) fixedly arranged at the top of twist drill handle (1)
It is characterized in that the method comprises the steps of,
the twist drill head (3) is fixedly arranged at the top of the twist drill body (2);
the flush part (4) is arranged above the twist drill head part (3);
the positioning part (5) is fixedly arranged at the bottom of the flush part (4), and the positioning part (5) is matched with the opening of the positioning groove (6);
the positioning groove (6) is formed in the top of the twist drill head (3);
the positioning mechanism is arranged on the outer side of the twist drill head part (3) and used for limiting the positioning part (5) in the hole of the positioning groove (6).
2. An improved flush cutter as claimed in claim 1, wherein the twist drill head (3) is of cylindrical configuration.
3. The improved flush cutter according to claim 1, wherein the positioning part (5) has a rectangular structure, and the lower end of the positioning part (5) is attached to the bottom of the positioning groove (6) so that the bottom of the flush part (4) is attached to the upper end of the twist drill head (3).
4. An improved flush knife as claimed in claim 1, wherein the outer diameter of the flush portion (4) is 2mm smaller than the inner diameter of the heat exchange tube.
5. The improved flush knife according to claim 1, wherein the positioning mechanism comprises positioning holes (7), positioning insertion holes (8), positioning insertion rods (9), positioning screw rods (10) and positioning screw cap bodies (11), the positioning holes (7) are formed in two sides of the positioning portions (5), the positioning insertion holes (8) are formed in two sides of the twist drill portions (3), the positioning insertion rods (9) are arranged on two sides of the twist drill portions (3), the positioning screw rods (10) are fixedly arranged at one ends of the positioning insertion rods (9), and the positioning screw cap bodies (11) are sleeved outside the positioning screw rods (10).
6. The improved flush knife according to claim 5, wherein two sets of positioning jacks (8) are communicated with the inside of the positioning groove (6), the positioning nut body (11) is in threaded connection with the positioning screw (10), and the positioning plug body (9) is matched with the opening of the positioning hole (7).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321847670.8U CN220278363U (en) | 2023-07-14 | 2023-07-14 | Improved flush knife |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321847670.8U CN220278363U (en) | 2023-07-14 | 2023-07-14 | Improved flush knife |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220278363U true CN220278363U (en) | 2024-01-02 |
Family
ID=89343707
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202321847670.8U Active CN220278363U (en) | 2023-07-14 | 2023-07-14 | Improved flush knife |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220278363U (en) |
-
2023
- 2023-07-14 CN CN202321847670.8U patent/CN220278363U/en active Active
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| Date | Code | Title | Description |
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| GR01 | Patent grant | ||
| GR01 | Patent grant |