CN216618172U - Tappet positioning pin with good sealing effect - Google Patents
Tappet positioning pin with good sealing effect Download PDFInfo
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- CN216618172U CN216618172U CN202122867822.8U CN202122867822U CN216618172U CN 216618172 U CN216618172 U CN 216618172U CN 202122867822 U CN202122867822 U CN 202122867822U CN 216618172 U CN216618172 U CN 216618172U
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- pin
- tappet
- positioning pin
- spacer
- sealing
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Abstract
The utility model discloses a tappet positioning pin with good sealing effect, which comprises: tappet locating pin, spacer block and sealing mechanism, sealing mechanism and spacer block all set up on the tappet locating pin, sealing mechanism includes first sealing washer and second sealing washer, first sealing washer sets up on tappet locating pin upper portion, the lower part of tappet locating pin and spacer block junction, the second sealing washer sets up in tappet locating pin bottom, first sealing washer forms the clearance space with the tappet locating pin, the clearance space sets up at tappet locating pin middle part, the second sealing washer forms pressure space with the tappet locating pin, pressure space forms in tappet locating pin bottom, clearance space and pressure space intercommunication. The limiting strips are arranged on the pin body to strengthen the fixing effect of the positioning pin, so that the positioning pin can be better fixed after being fixed, the fixing performance of the positioning pin is improved, and the sealing performance is also strengthened.
Description
Technical Field
The utility model relates to the technical field of positioning pins, in particular to a tappet positioning pin with a good sealing effect.
Background
Along with the progress of society, the demand of a tappet positioning pin is more and more great, the tappet positioning pin is used on a plurality of devices, people not only limit the effects of positioning and fixing to the tappet positioning pin, but also have certain requirements on the tightness of the tappet positioning pin, and the O-shaped ring and the like possibly appear in the existing positioning pin for the sealing effect, but the existing positioning pin is possibly subjected to larger air pressure, and the sealing effect is not ideal, so the utility model provides the tappet positioning pin with good sealing effect.
SUMMERY OF THE UTILITY MODEL
In view of the above, the present invention provides a tappet positioning pin with good sealing effect to solve the above technical problems.
In order to achieve the purpose, the utility model provides the following technical scheme:
a tappet positioning pin with good sealing effect, comprising: tappet locating pin, spacer block and sealing mechanism, sealing mechanism and spacer block all set up on the tappet locating pin, sealing mechanism includes first sealing washer and second sealing washer, first sealing washer sets up on tappet locating pin upper portion, the lower part of tappet locating pin and spacer block junction, the second sealing washer sets up in tappet locating pin bottom, first sealing washer forms the clearance space with the tappet locating pin, the clearance space sets up at tappet locating pin middle part, the second sealing washer forms pressure space with the tappet locating pin, pressure space forms in tappet locating pin bottom, clearance space and pressure space intercommunication.
The tappet locating pin includes the round pin cap, round pin cap lower part is equipped with the round pin body, the round pin body has the round pin stopper, the second sealing washer sets up in round pin stopper lower part.
The round pin is provided with a plurality of limiting strips on the round pin body, the limiting strips are distributed along the round pin body in an annular mode, the upper portion of each limiting strip is provided with an annular groove, and the first sealing ring is arranged in the annular groove.
The spacer block includes the spacer block body, spacer block body middle part is equipped with separates the hole, it is equipped with the chute to separate the hole lower part, the chute corresponds the ring channel in the round pin body, and first sealing washer also blocks in the chute.
The shock absorption block comprises a spacer block body and is characterized in that the spacer block body comprises a shock absorption flange, the shock absorption flange is arranged on the upper portion of the spacer block body, a plurality of shock absorption flanges are arranged on the spacer block body, the shock absorption flanges are annularly distributed on the spacer block body, and the shock absorption flanges are attached to pin caps on the tappet positioning pins.
The spacer block body is arranged at the top of the pin body, and the pin body penetrates through the spacer hole in the spacer block body to be opposite to the pin cap at the top of the tappet positioning pin.
The technical scheme can show that the utility model has the advantages that:
1. according to the utility model, the first sealing ring and the second sealing ring are matched, so that the sealing effect of the positioning pin is more perfect, pressure is formed between the first sealing ring and the second sealing ring to balance the pressure outside the second sealing ring, the pressure in the gap space and the pressure space is consistent with the pressure outside, the sealing effect is enhanced, when the pressure in the pressure space is smaller than the pressure outside the second sealing ring, the second sealing ring can be automatically opened by the pressure under the influence of the pressure, and the opening of the second sealing ring can be closed by the internal pressure when the pressure is supplemented to a certain value, so that the internal pressure and the external pressure are consistent.
2. The limiting strip is arranged on the pin body to strengthen the fixing effect of the positioning pin, so that the positioning pin can be better fixed after being fixed, the fixing performance of the positioning pin is improved, and the sealing performance is also strengthened.
Drawings
The accompanying drawings, which are incorporated in and constitute a part of this application, illustrate embodiments of the utility model and, together with the description, serve to explain the utility model and not to limit the utility model.
Fig. 1 is a schematic perspective view of the present invention.
Fig. 2 is a schematic perspective view of the present invention.
Fig. 3 is a schematic diagram of the explosive structure of the present invention.
Fig. 4 is a schematic view of a front view structure of the present invention.
FIG. 5 is a schematic perspective view of another spacer block of the present invention.
List of reference numerals: the tappet locating pin 1, the pin cap 11, the pin body 12, the limiting strip 121, the annular groove 122, the pin plug 13, the spacer block 2, the spacer block body 21, the spacer hole 22, the inclined groove 23, the cushioning flange 24, the sealing mechanism 3, the first sealing ring 31, the second sealing ring 32, the gap space 33 and the pressure space 34.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention will be described in further detail with reference to the following embodiments and accompanying drawings. The exemplary embodiments and descriptions of the present invention are provided to explain the present invention, but not to limit the present invention.
Referring to fig. 1 to 5, as shown in fig. 1 to 5:
a tappet positioning pin having a good sealing effect, comprising: tappet locating pin 1, spacer 2 and sealing mechanism 3, sealing mechanism 3 all sets up on tappet locating pin 1 with spacer 2, sealing mechanism 3 includes first sealing washer 31 and second sealing washer 32, first sealing washer 31 sets up on tappet locating pin 1 upper portion, the lower part of tappet locating pin 1 and spacer 2 junction, second sealing washer 32 sets up in tappet locating pin 1 bottom, first sealing washer 31 forms clearance space 33 with tappet locating pin 1, clearance space 33 sets up in tappet locating pin 1 middle part, second sealing washer 32 forms pressure space 34 with tappet locating pin 1, pressure space 34 forms in tappet locating pin 1 bottom, clearance space 33 and pressure space 34 intercommunication.
The pin body 12 is provided with a plurality of limiting strips 121, the limiting strips 121 are distributed annularly along the pin body 12, and can better fix the tappet positioning pin so that the tappet positioning pin cannot move easily, the upper part of the limiting strips 121 is provided with an annular groove 122, and the first sealing ring 31 is arranged in the annular groove 122.
The spacer block 2 includes spacer block body 21, spacer block body 21 middle part is equipped with separates hole 22, it is equipped with chute 23 to separate hole 22 lower part, chute 23 corresponds ring channel 122 in the round pin body 12, and in first sealing washer 31 also blocked chute 23, wherein, first sealing washer 31 can fix spacer block 2 through chute 23, has increased the seal of locating pin.
The spacer block body 21 includes bradyseism flange 24, bradyseism flange 24 sets up on spacer block body 21 upper portion, be equipped with a plurality of bradyseism flange 24 on the spacer block body 21, bradyseism flange 24 ring-shaped distribution is on spacer block body 21, bradyseism flange 24 pastes with the round pin cap 11 on the tappet locating pin 1, and when the locating pin received pressure not hard up, spacer block 2 can closely laminate with round pin cap 11 through bradyseism flange 24, makes and has better seal between spacer block 2 and the round pin cap 11, and bradyseism flange 24 can make the locating pin can part fast when not stressed, can not lead to separating not opening because of too closely.
The spacer block body 21 is arranged on the top of the pin body 12, and the pin body 12 passes through the spacer hole 22 on the spacer block body 21 to be opposite to the pin cap 11 on the top of the tappet positioning pin 1.
The above description is only a preferred embodiment of the present invention, and is not intended to limit the present invention, and various modifications and changes may be made to the embodiment of the present invention by those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (6)
1. A tappet positioning pin with good sealing effect, comprising: the device comprises a tappet positioning pin (1), a spacer block (2) and a sealing mechanism (3), wherein the sealing mechanism (3) and the spacer block (2) are arranged on the tappet positioning pin (1), the sealing mechanism (3) comprises a first sealing ring (31) and a second sealing ring (32), the first sealing ring (31) is arranged at the upper part of the tappet positioning pin (1), the lower part of the joint of the tappet positioning pin (1) and the spacer block (2), the second sealing ring (32) is arranged at the bottom of the tappet positioning pin (1), the first sealing ring (31) and the tappet positioning pin (1) form a clearance space (33), the clearance space (33) is arranged in the middle of the tappet positioning pin (1), the second sealing ring (32) and the tappet positioning pin (1) form a pressure space (34), the pressure space (34) is formed at the bottom of the tappet positioning pin (1), and the clearance space (33) is communicated with the pressure space (34).
2. Tappet positioning pin with good sealing effect according to claim 1, wherein the tappet positioning pin (1) comprises a pin cap (11), a pin body (12) is arranged at the lower part of the pin cap (11), a pin plug (13) is arranged below the pin body (12), and the second sealing ring (32) is arranged at the lower part of the pin plug (13).
3. The tappet positioning pin with good sealing effect according to claim 2, wherein a plurality of limiting strips (121) are arranged on the pin body (12), the limiting strips (121) are distributed annularly along the pin body (12), an annular groove (122) is arranged at the upper part of the limiting strips (121), and the first sealing ring (31) is arranged in the annular groove (122).
4. The tappet positioning pin with good sealing effect according to claim 1, wherein the spacer block (2) comprises a spacer block body (21), a spacer hole (22) is formed in the middle of the spacer block body (21), a chute (23) is formed in the lower portion of the spacer hole (22), the chute (23) corresponds to an annular groove (122) in the pin body (12), and the first sealing ring (31) is also clamped in the chute (23).
5. The tappet positioning pin with good sealing effect according to claim 4, wherein the spacer body (21) comprises a cushioning flange (24), the cushioning flange (24) is arranged on the upper portion of the spacer body (21), the plurality of cushioning flanges (24) are arranged on the spacer body (21), the cushioning flanges (24) are annularly distributed on the spacer body (21), and the cushioning flanges (24) are attached to the pin caps (11) on the tappet positioning pin (1).
6. Tappet alignment pin with good sealing effect according to claim 4, wherein the spacer body (21) is arranged on top of the pin body (12), and the pin body (12) is opposite to the pin cap (11) on top of the tappet alignment pin (1) through the spacer hole (22) on the spacer body (21).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122867822.8U CN216618172U (en) | 2021-11-22 | 2021-11-22 | Tappet positioning pin with good sealing effect |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122867822.8U CN216618172U (en) | 2021-11-22 | 2021-11-22 | Tappet positioning pin with good sealing effect |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN216618172U true CN216618172U (en) | 2022-05-27 |
Family
ID=81697744
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202122867822.8U Active CN216618172U (en) | 2021-11-22 | 2021-11-22 | Tappet positioning pin with good sealing effect |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN216618172U (en) |
-
2021
- 2021-11-22 CN CN202122867822.8U patent/CN216618172U/en active Active
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