CN209981155U - Detachable fuse tube needle striker - Google Patents
Detachable fuse tube needle striker Download PDFInfo
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- CN209981155U CN209981155U CN201921286719.0U CN201921286719U CN209981155U CN 209981155 U CN209981155 U CN 209981155U CN 201921286719 U CN201921286719 U CN 201921286719U CN 209981155 U CN209981155 U CN 209981155U
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- tube
- sealing
- sealing cover
- tube needle
- firing pin
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Abstract
The utility model discloses a detachable fusion tube needle bumping device. The utility model provides a detachable melt tube striker ware includes melt tube cylinder, firing pin, sealing washer which characterized in that: the sealing device is characterized by further comprising a sealing cover and a supporting tube, openings are formed in two ends of the fusion tube needle cylinder, the supporting tube is arranged in the fusion tube needle cylinder and is provided with a through hole for the firing pin to penetrate through, the sealing ring is sleeved on the sealing cover, the sealing cover is connected to the fusion tube needle cylinder through threads, and the fusion tube needle cylinder, the sealing cover, the supporting tube and the firing pin form a sealing space. The utility model provides a detachable fusion tube hits needle ware easy dismounting, accessories are small in quantity, have improved the assembly efficiency that the fusion tube hit the needle ware and have reduced the production cost that the fusion tube hit the needle ware.
Description
Technical Field
The utility model belongs to the technical field of the fuse, concretely relates to fusion tube hits needle ware.
Background
The existing needle collider for the fusion tube has the defects of multiple parts, natural and complex assembly steps, multiple parts and multiple assembly relations, and the difficulty of finding out which part causes the problem is correspondingly increased once the problem occurs. When the sealing cover is assembled by the existing fusion tube striker, the existing fusion tube striker is forcibly pressed into and impacted with the fusion tube needle cylinder by force (or by adopting a lever), the sealing cover is clamped by a convex edge barb of the fusion tube needle cylinder to prevent the sealing cover from being separated, and the assembly mode is difficult to install and disassemble. In the fuse tube needle striker adopting the assembly mode, the barb-shaped structure of the fuse tube needle cylinder of the fuse tube needle striker is designed to enable the sealing cover to be pressed in place, and the height space in the barb is necessarily larger than the height of the sealing cover, so that the sealing cover leaves a certain gap in the barb more or less after being pressed in, and the sealing effect is further influenced. The original designed O-shaped sealing ring is compressed in the transverse dimension of the cross section of the O-shaped ring, but not in the longitudinal direction. The sealing ring is formed by vulcanization of a mold, parting surfaces of the sealing ring are arranged on the left side and the right side of a circular cross section, and after the sealing ring is torn off by fins, defects are inevitably left at parting line positions, and the sealing ring is not left with the fins or is provided with a notch, so that the sealing effect can be directly influenced, the insulating oil in a kit leaks, and the voltage-resistant electrical performance of a product is finally influenced.
SUMMERY OF THE UTILITY MODEL
The utility model aims to solve the problems in the prior art and provide a fusion tube needle striker with simple structure and convenient assembly and disassembly.
In order to achieve the above purpose, the utility model adopts the following technical scheme: a detachable fusion tube needle firing device comprises a fusion tube needle cylinder, a firing pin, a sealing cover and a supporting tube, wherein openings are formed in two ends of the fusion tube needle cylinder, and the supporting tube is arranged in the fusion tube needle cylinder and provided with a through hole for the firing pin to pass through; the firing pin penetrates through the supporting tube, and one end of the firing pin extends out of the sealing cover; the sealing cover is in threaded connection with one end of the fusion tube needle cylinder, and the fusion tube needle cylinder, the sealing cover, the supporting tube and the firing pin form a sealed space.
Preferably, the sealing device comprises a first sealing element, a first step is arranged in the fusion tube needle cylinder, the sealing cover is provided with a convex shoulder for the first sealing element to be sleeved on the sealing cover, and the sealing cover convex shoulder presses the sealing ring on the first step.
Preferably, the upper surface of the sealing cover is lower than the upper surface of the fusion tube needle cylinder.
Preferably, the cover is provided with a hexagonal boss.
Preferably, a support part is arranged in the melting tube needle cylinder, a second sealing element and a third sealing element are respectively arranged between the cover and the support tube and between the support part and the support tube, and the second sealing element and the third sealing element are in interference fit with the striker to form the sealed space.
Preferably, the cover is provided with a second step, the support portion is provided with a third step, the second sealing element is assembled on the second step, the third sealing element is assembled on the third step, one end of the support tube presses the second sealing element on the second step, the other end of the support tube presses the third sealing element on the third step, and the outer diameter of the second step is smaller than that of the first star-shaped ring.
Preferably, the second and third seals are star rings.
Preferably, the device further comprises a retaining ring which is sleeved at one end of the firing pin extending out of the sealing cover.
Preferably, the support tube is filled with insulating oil.
Preferably, the outer diameter of the opening of the melting tube needle cylinder for inserting the firing pin is smaller than the outer diameter of the opening of one end of the sealing cover for detachably and fixedly connecting. .
Compared with the prior art, the technical scheme of the utility model following beneficial effect has:
1. the closing cap passes through screw thread detachable fixed connection on the fusion tube cylinder, and the closing cap is equipped with hexagonal boss, is convenient for pull down the closing cap through ordinary outer hexagonal sleeve or opening spanner, realizes the quick assembly disassembly of fusion tube collision needle ware.
2. The first sealing element is pressed tightly on the step of the fusion tube needle cylinder by the convex shoulder and is simultaneously contacted with the convex shoulder of the sealing cover, the step and the inner wall of the fusion tube needle cylinder, and the sealing effect is good.
3. The second sealing piece and the third sealing piece are pressed on the second step of the supporting part of the melting tube needle cylinder and the third step of the sealing cover through the supporting tube, so that the supporting tube is fixed on the melting tube needle cylinder by the sealing cover through the star-shaped ring, and the use process is not easy to loosen.
Drawings
The accompanying drawings, which are included to provide a further understanding of the invention and constitute a part of this specification
In addition, the exemplary embodiments and descriptions of the present invention are used for explaining the present invention, and do not constitute the present invention
Are not properly defined. In the drawings:
FIG. 1 is a perspective view of a detachable fusion tube needle striker of the present invention
FIG. 2 is a sectional view taken along line A-A of FIG. 1 according to the present invention
FIG. 3 is a perspective view of the needle cylinder of the detachable fusion tube needle striker of the present invention
FIG. 4 is a perspective view of the sealing cap of the detachable fusion tube plunger of the present invention
FIG. 5 is a perspective view of the supporting tube of the detachable fusion tube needle striking device of the present invention
Description of the main reference numerals:
the melting tube needle cylinder 1, the first step 11, the third step 12, the supporting part 13, the firing pin 2, the cover 3, the shoulder 31, the second step 32, the hexagonal boss 33, the first sealing element 4, the support tube 5, the second sealing element 6, the third sealing element 7 and the retainer ring 8.
Detailed Description
The technical solution in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. It is obvious that the described embodiments are preferred embodiments of the invention and should not be considered as excluding other embodiments. Based on the embodiment of the present invention, all other embodiments obtained by a person of ordinary skill in the art without creative work belong to the protection scope of the present invention.
In the claims, the description and the drawings, the terms "first," "second," or "third," etc. are used for distinguishing between different objects and not necessarily for describing a particular sequence.
In the claims, the specification and the drawings, the terms "including", "comprising" and variations thereof, if used, are intended to be inclusive and not limiting.
Referring to fig. 1-5, the present invention provides a fuse tube firing pin device, which includes a fuse tube cylinder 1, a firing pin 2, a first sealing member 4, a support tube 5 and a cover 3.
The 1 both ends of fusion tube cylinder of this embodiment are the opening, and wherein the opening external diameter that supplies firing pin 2 to insert is less than the open-ended external diameter that supplies closing cap 3 to dismantle fixed connection one end, and the surface of the little one end of 1 open-ended of fusion tube cylinder is the lower surface, and the surface of the big one end of opening is the upper surface, and the big one end of 1 open-ended of fusion tube cylinder is equipped with the internal thread to supply closing cap 3 to pass through screw thread detachable fixed connection on fusion tube cylinder 1, wherein the upper surface of closing cap 3 is less than the upper surface of fusion tube cylinder 1.
The striker 2 of the embodiment is integrally T-shaped, has a circular truncated cone at one end, has an outer diameter smaller than that of the circular truncated cone at the other end, and is inserted into the fusion tube needle cylinder 1 from the end with the small opening of the fusion tube needle cylinder 1.
The first seal 4 of this embodiment is an O-ring.
The support tube 5 of this embodiment is i-shaped, and both ends are the rings of centre trompil, and the centre is the tubulose that the external diameter is less than both ends ring, and wherein the surface that is close to the ring of closing cap 3 one end is the upper surface, and the surface of the ring of keeping away from closing cap 3 one end is the lower surface.
The closing cap 3 of this embodiment has the external screw thread, and it is with the internal screw thread looks adaptation of fusion tube cylinder 1, and the closing cap 3 is equipped with hexagon boss 33 outward and is convenient for dismantle closing cap 3 through ordinary outer hexagonal sleeve or open spanner installation and realize quick assembly disassembly, and wherein the terminal surface of closing cap 3 second step 32 one end is the lower surface, and the terminal surface of keeping away from second step 32 one end is the upper surface.
In this embodiment, the first step 11 is disposed in the melt tube syringe 1, the sealing cover 3 is provided with a shoulder 31 for the first sealing element 4 to be sleeved on the sealing cover 3, the shoulder 31 of the sealing cover 3 presses the first sealing element 4 against the first step 11, and at this time, the first sealing element 4 is simultaneously in contact with the shoulder 31 of the sealing cover 3, the first step 11 of the melt tube syringe 1 and the inner wall of the melt tube syringe 1 to form three surfaces for simultaneously extruding the first sealing element 4, so that the sealing effect is good.
The fuse tube firing pin 2 device provided by the embodiment further comprises a second sealing element 6 and a third sealing element 7, the second sealing element 6 and the third sealing element 7 are star-shaped rings, a second step 12 is arranged in the fuse tube needle cylinder 1, the cover 3 is provided with a third step 32, the second sealing element 6 is assembled on the second step 32 of the cover 3, the third sealing element 7 is assembled on the third step 12 of the fuse tube needle cylinder 1, the outer diameter of the second step 32 is smaller than that of the second sealing element 6, specifically, the second sealing element 6 is pressed on the second step 32 through one end of the support pipe 5, and the third sealing element 7 is pressed on the third step 12 through the other end of the support pipe 5.
The fusion tube firing pin 2 device provided by the embodiment further comprises a retainer ring 8, and the retainer ring 8 is sleeved on the firing pin 2 extending out of the sealing cover 3 to prevent the firing pin 2 from falling off.
The utility model provides a 2 ware assembly steps of fusion tube firing pin as follows:
firstly, the firing pin 2 is inserted from one end of the melting tube syringe 1 with a small opening, then the third sealing member 7 is sleeved, and the third sealing member 7 is brought to a corresponding third step 12 inside the melting tube syringe 1 through the firing pin 2. Then the supporting tube 5 is assembled in the melting tube needle cylinder 1 for the striker 2 to pass through, then the second sealing element 6 is placed in the corresponding second step 32 of the sealing cover 3, the corresponding shoulder 31 of the sealing cover 3 is sleeved with an O-shaped sealing ring, the assembled sealing cover 3 is screwed into the melting tube needle cylinder 1 until the sealing cover is screwed, the stopping surface is that the upper surface of the sealing cover 3 is lower than the upper surface of the melting tube needle cylinder 1, at the moment, the section of the O-shaped sealing ring can be extruded by three surfaces, namely the upper part, the right part (or the left part) and the lower left part (or the lower right part) of the section. After the cover 3 is screwed in place, the lower surface of the cover 3 can press the upper surface of the support tube 5, so that the upper and lower surfaces of the support tube 5 limit the upper and lower star rings, and the support tube 5 has a pressing effect on the star rings. The firing pin 2 still hits the interior of the melting tube needle cylinder 1 at this moment, does not stretch out of the sealing cover 3, and the insulating oil is filled into the hole penetrating the firing pin 2 from the middle of the sealing cover 3 until the oil is full of the opening of the sealing cover 3, and then the rod of the firing pin 2 is pushed out of the sealing cover 3 to clamp the retainer ring 8, so that the firing pin 2 is prevented from falling off.
The description of the above specification and examples is intended to illustrate the scope of the invention, but should not be construed as limiting the scope of the invention. Modifications, equivalents and other improvements which may be made to the embodiments of the invention or to some of the technical features thereof by a person of ordinary skill in the art through logical analysis, reasoning or limited experimentation in light of the above teachings of the invention or the above embodiments are intended to be included within the scope of the invention.
Claims (10)
1. The utility model provides a detachable fusion tube needle collider, includes fusion tube cylinder, firing pin which characterized in that: the device also comprises a sealing cover and a supporting tube, wherein two ends of the melting tube needle cylinder are opened, and the supporting tube is arranged in the melting tube needle cylinder and is provided with a through hole for a firing pin to pass through; the firing pin penetrates through the supporting tube, and one end of the firing pin extends out of the sealing cover; the sealing cover is in threaded connection with one end of the fusion tube needle cylinder, and the fusion tube needle cylinder, the sealing cover, the supporting tube and the firing pin form a sealed space.
2. The melt tube needle striker according to claim 1, characterized in that: the sealing device comprises a first sealing element, wherein a first step is arranged in the fusion tube needle cylinder, a convex shoulder is arranged on the sealing cover to enable the first sealing element to be sleeved on the sealing cover, and the sealing cover convex shoulder tightly presses the sealing ring on the first step.
3. The melt tube needle striker according to claim 2, characterized in that: the upper surface of the sealing cover is lower than the upper surface of the fusion tube needle cylinder.
4. The melt tube needle striker according to claim 3, characterized in that: the seal cover is provided with a hexagonal boss.
5. The melt tube needle striker according to claim 1, characterized in that: a supporting part is arranged in the fusion tube needle cylinder, a second sealing element and a third sealing element are respectively arranged between the sealing cover and the supporting tube and between the supporting part and the supporting tube, and the second sealing element and the third sealing element are in interference fit with the striker so as to form the sealed space.
6. The melt tube needle striker according to claim 5, wherein: the sealing cover is provided with a second step, the supporting part is provided with a third step, the second sealing element is assembled on the second step, the third sealing element is assembled on the third step, one end of the supporting pipe presses the second sealing element onto the second step, the other end of the supporting pipe presses the third sealing element onto the third step, and the outer diameter of the second step is smaller than that of the first star-shaped ring.
7. The melt tube needle striker according to claim 6, wherein: the second and third seals are star rings.
8. The melt tube needle striker according to claim 1, characterized in that: the device also comprises a retaining ring which is sleeved at one end of the firing pin extending out of the sealing cover.
9. The melt tube needle striker according to claim 1, characterized in that: insulating oil is filled in the supporting tube.
10. The melt tube needle striker according to claim 1, characterized in that: the outer diameter of an opening of the fusion tube needle cylinder for inserting the firing pin is smaller than that of an opening of one end of the sealing cover which is detachably and fixedly connected.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921286719.0U CN209981155U (en) | 2019-08-09 | 2019-08-09 | Detachable fuse tube needle striker |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921286719.0U CN209981155U (en) | 2019-08-09 | 2019-08-09 | Detachable fuse tube needle striker |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209981155U true CN209981155U (en) | 2020-01-21 |
Family
ID=69251676
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921286719.0U Active CN209981155U (en) | 2019-08-09 | 2019-08-09 | Detachable fuse tube needle striker |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209981155U (en) |
-
2019
- 2019-08-09 CN CN201921286719.0U patent/CN209981155U/en active Active
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