CN212106580U - Bolt structure for fixing engine parts - Google Patents
Bolt structure for fixing engine parts Download PDFInfo
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- CN212106580U CN212106580U CN202020565213.XU CN202020565213U CN212106580U CN 212106580 U CN212106580 U CN 212106580U CN 202020565213 U CN202020565213 U CN 202020565213U CN 212106580 U CN212106580 U CN 212106580U
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- fixing
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- gasket
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Abstract
The utility model discloses a bolt structure for fixing engine parts, which comprises an integrally formed screw rod and a head part, and also comprises a positioning stop sleeve and a gasket, wherein the positioning stop sleeve is sleeved at the upper end of the screw rod; the gasket is sleeved at the upper end of the positioning stop sleeve, and the top end of the gasket is contacted with the bottom of the head. The utility model, through the arrangement of the positioning stop sleeve, the positioning stop sleeve is matched with the positioning stop opening on the part of the engine, the contact area of the bolt and the part of the engine is increased, the friction force is increased, and the fixing effect is further improved; meanwhile, the gasket is arranged between the positioning stop sleeve and the head, so that the contact area between the head and a part of the engine can be increased, the friction force is increased, the fixing effect is improved, and the possibility that the bolt is loosened due to the vibration of the engine and the parts of the engine are loosened is reduced.
Description
Technical Field
The utility model relates to a spare part field specifically is a bolt structure for fixing engine part.
Background
Because of the requirement of the position range of the assembly of two parts in the engine industry, the positions of the two existing parts for positioning are assembled on the two parts through a positioning sleeve and then assembled with bolts, so that the assembly is complex, and the bolts and the positioning sleeve are not assembled together due to the vibration of the bolts and the positioning sleeve in the long-term working process of the engine, so that the parts of the engine are not loosened, and the use of the engine is influenced.
SUMMERY OF THE UTILITY MODEL
The utility model aims to solve the technical problem that a bolt structure for fixing engine part that can improve bolt-up effect is provided.
The utility model discloses a following technical means realizes solving above-mentioned technical problem:
a bolt structure for fixing engine parts comprises a screw rod and a head which are integrally formed, and further comprises a positioning stop sleeve and a gasket, wherein the positioning stop sleeve is sleeved at the upper end of the screw rod; the gasket is sleeved at the upper end of the positioning stop sleeve, and the top end of the gasket is contacted with the bottom of the head.
During the use, establish screw rod and location end cover in the hole of gasket earlier, the utility model discloses a screw hole department on the part of engine is provided with the location tang that matches with location end cover, injects screw rod tip location tang and threaded hole in proper order, then twists the head of moving the bolt with the spanner, screw hole threaded connection on the part of screw rod and engine, and the location on the part of while location end cover and engine only cooperatees, twists the in-process of moving the head, the head with the gasket centre gripping between the outer wall of head and location tang, increase frictional force, and then reach fixed purpose. The utility model, through the arrangement of the positioning stop sleeve, the positioning stop sleeve is matched with the positioning stop opening on the part of the engine, the contact area of the bolt and the part of the engine is increased, the friction force is increased, and the fixing effect is further improved; meanwhile, the gasket is arranged between the positioning stop sleeve and the head, so that the contact area between the head and a part of the engine can be increased, the friction force is increased, the fixing effect is improved, and the possibility that the bolt is loosened due to the vibration of the engine and the parts of the engine are loosened is reduced.
Preferably, the positioning stop sleeve comprises a sleeve body and a top plate which are integrally formed; the sleeve body is of a cylinder structure with openings at two ends and is sleeved at the upper end of the screw rod; the top plate is fixed on the top of the sleeve body, and the top of the top plate is fixedly connected with the bottom of the head.
Preferably, the positioning stop sleeve further comprises an expansion ring and a water stop ring; the expansion ring and the water stop ring are sequentially sleeved on the sleeve body from top to bottom; the expansion ring and the water stop ring are arranged on the outer wall of the sleeve body, so that water can be stopped, and the sleeve body is prevented from being corroded.
Preferably, a counter bore is formed in the middle of the gasket, the sleeve body is sleeved inside a lower bore body of the counter bore, and the top plate is limited in an upper bore body of the counter bore; the hole through with the gasket sets up to the shape of counter bore, and is corresponding with the shape of the cover body and roof, compares in current planar pad spare structure, the utility model discloses increased the area of contact between location only cover and the gasket, increased frictional force, and then improved fixed efficiency.
During the use, earlier with the gasket up according to the last hole body of its counter bore, the setting up that the lower hole body is up injects the screw rod in the counter bore of gasket, and the cover body of location end cover runs through the last hole body and the lower hole body of the counter bore of gasket in proper order, establishes until the roof cover is established at the last hole internal of counter bore, the utility model discloses a screw hole department on the part of engine is provided with the location tang that matches with the location end cover, injects the screw rod tip in proper order in location tang and the screw hole, then twists the head of bolt with the spanner, screw hole threaded connection on the part of screw rod and engine, and the location tang on the part of location end cover and engine cooperatees simultaneously, twists the in-process of head, and the last hole body of roof and counter bore is also screwed up gradually, and the head centre gripping gasket between the outer wall of head and location tang, and then reaches fixed purpose.
Preferably, the outer wall of the bottom of the cylinder body of the sleeve body is of a slope structure which is gradually chamfered towards the central position of the cylinder body; the outer wall of the bottom of the cylinder body of the sleeve body is set to be a slope structure which is gradually chamfered towards the center position of the cylinder body, so that the stress area of the sleeve body is reduced, and the sleeve body can conveniently enter a positioning spigot on a part of an engine.
Preferably, the top plate comprises a disc and a pad; the cushion blocks are annularly and equidistantly fixed on the annular wall of the disc; the utility model discloses a setting of cushion uses the cushion to replace partial disc, increases the inflation gap of roof in the counter bore.
Preferably, the head part is of a polygonal opposite side structure; through setting up the head into the structure of polygonal opposite side, the use spanner of being convenient for carries out the dismouting.
Preferably, the inner diameter of the upper hole body of the counter bore is smaller than the distance between two opposite corners of the head part; the inner diameter of the upper hole body of the counter bore is set to be smaller than the distance between two opposite angles of the head, so that the problem that water flows into the counter bore from a gap between the head and the counter bore to cause corrosion of the positioning stop sleeve is avoided.
Preferably, the length of the top plate is greater than the inner diameter of the lower hole body of the counter bore; the length of the top plate is set to be larger than the inner diameter of the lower hole body of the counter bore, so that the top plate can be limited in the upper hole body of the counter bore.
The utility model has the advantages that:
1. the utility model, through the arrangement of the positioning stop sleeve, the positioning stop sleeve is matched with the positioning stop opening on the part of the engine, the contact area of the bolt and the part of the engine is increased, the friction force is increased, and the fixing effect is further improved; meanwhile, the gasket is arranged between the positioning stop sleeve and the head, so that the contact area between the head and a part of the engine can be increased, the friction force is increased, the fixing effect is improved, and the possibility that the bolt is loosened due to the vibration of the engine and the parts of the engine are loosened is reduced.
2. Through the interior accuse setting with the gasket to the shape of counter bore, corresponding with the shape of the cover body and roof, compare in current planar pad spare structure, the utility model discloses increased the area of contact between location only cover and the gasket, increased frictional force, and then improved fixed efficiency.
3. The outer wall of the bottom of the cylinder body of the sleeve body is set to be a slope structure which is gradually chamfered towards the center position of the cylinder body, so that the stress area of the sleeve body is reduced, and the sleeve body can conveniently enter a positioning spigot on a part of an engine.
Drawings
Fig. 1 is a schematic structural diagram of a bolt structure for fixing an engine part according to an embodiment of the present invention;
fig. 2 is a schematic front view of the bolt and the positioning stop sleeve according to the embodiment of the present invention;
fig. 3 is a schematic structural diagram of a gasket according to an embodiment of the present invention;
fig. 4 is a schematic view of a connection structure of a positioning stop sleeve and a gasket according to an embodiment of the present invention;
fig. 5 is an enlarged schematic structural diagram of a according to an embodiment of the present invention;
fig. 6 is a schematic structural view of the positioning stop sleeve according to the embodiment of the present invention.
The reference numbers illustrate:
1. a screw; 2. a head portion; 3. positioning the stop sleeve; 31. a sleeve body; 32. a top plate; 321. a disc; 322. cushion blocks; 33. an expansion ring; 34. a water stop ring; 4. a gasket; 41. a counterbore.
Detailed Description
To make the purpose, technical solution and advantages of the embodiments of the present invention clearer, the embodiments of the present invention are combined to clearly and completely describe the technical solution in the embodiments of the present invention, and obviously, the described embodiments are some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.
Example one
As shown in fig. 1, the present embodiment discloses a bolt structure for fixing an engine part, which includes an integrally formed screw rod 1 and a head 2, and further includes a positioning stop sleeve 3 and a gasket 4; the screw 1 and the head 2 can also be fixedly connected by means of welding in the prior art.
The positioning stop sleeve 3 is sleeved at the upper end of the screw rod 1, and the outer wall of the upper end of the screw rod 1 can be fixedly connected with the inner wall of the positioning stop sleeve 3 in the existing welding mode; the gasket 4 is sleeved at the upper end of the positioning stop sleeve 3, an inner hole of the gasket 4 is excessively matched with the outer wall of the upper end of the positioning stop sleeve 3, and the top end of the gasket 4 is contacted with the bottom of the head 2.
During the use, establish earlier screw rod 1 and location tang 3 cover downthehole at gasket 4, the utility model discloses a screw hole department on the part of engine is provided with location tang 3 assorted location tang, inject location tang and screw hole in proper order with screw rod 1 tip, then twist the head 2 of moving the bolt with the spanner, screw hole threaded connection on the part of screw rod 1 and engine, and the location on the part of while location tang 3 and engine only cooperatees, twist the in-process of moving head 2, head 2 with 4 centre grippings of gasket between the outer wall of head 2 and location tang, increase frictional force, and then reach fixed purpose. The utility model, through the arrangement of the positioning stop sleeve 3, the positioning stop sleeve 3 is matched with the positioning stop opening on the part of the engine, the contact area of the bolt and the part of the engine is increased, the friction force is increased, and the fixing effect is further improved; simultaneously through being provided with gasket 4 between location stopband 3 and head 2, gasket 4 can increase the area of contact between the part of head 2 and engine, increases frictional force, and then improves fixed effect, reduces because of the vibrations of engine self lead to the bolt not hard up, and then lead to the not hard up possibility of spare part of engine.
As shown in fig. 2, the positioning stop sleeve 3 comprises a sleeve body 31 and a top plate 32 which are integrally formed; the sleeve body 31 is of a cylinder structure with openings at two ends, the sleeve body 31 is sleeved at the upper end of the screw rod 1, and the inner hole wall of the sleeve body 31 can be fixedly connected with the outer wall of the upper end of the screw rod 1 in the existing welding mode; the top plate 32 is fixed on the top of the sleeve body 31, the top plate 32 can be fixedly connected on the top of the sleeve body 31 through the existing welding mode, and the top of the top plate 32 is fixedly connected with the bottom of the head 2 through welding.
As shown in fig. 3, a counterbore 41 is formed in the middle of the spacer 4.
As shown in fig. 4, the sleeve body 31 is sleeved inside the lower hole body of the counterbore 41, the top plate 32 is limited in the upper hole body of the counterbore 41, and the outer wall of the top plate 32 is excessively matched with the inner wall of the upper hole body of the counterbore 41; set up the shape into counter bore 41 through the hole with gasket 4, corresponding with the shape of the cover body 31 and roof 32, compare in current planar pad spare structure, the utility model discloses increased the area of contact between location only cover 3 and the gasket 4, increased frictional force, and then improved fixed efficiency.
The working principle of the embodiment is as follows: the utility model provides a bolt structure for fixing engine parts, when in use, firstly, a screw rod 1 is inserted into a counter bore 41 of a gasket 4 according to the arrangement that the upper hole body of the counter bore 41 of the gasket 4 is upward and the lower hole body is upward, and a sleeve body 31 of a positioning stop sleeve 3 sequentially penetrates through the upper hole body and the lower hole body of the counter bore 41 of the gasket 4 until a top plate 32 is sleeved in the upper hole body of the counter bore 41, the threaded hole part on the engine parts of the utility model is provided with a positioning stop mouth matched with the positioning stop sleeve 3, the end part of the screw rod 1 is sequentially inserted into the positioning stop mouth and the threaded hole, then a head part 2 of the bolt is screwed by a spanner, the screw rod 1 is in threaded connection with a threaded hole on the engine parts, and the positioning stop sleeve 3 is matched with the positioning stop mouth on the engine parts simultaneously, in the process of screwing the head part 2, the top plate 32 is also gradually screwed with the upper, the head 2 clamps the gasket 4 between the head 2 and the outer wall of the positioning spigot, thereby achieving the purpose of fixing.
Compared with the prior art, the utility model has the following advantages: firstly, the utility model, through the arrangement of the positioning stop sleeve 3, the positioning stop sleeve 3 is matched with the positioning stop mouth on the part of the engine, the contact area of the bolt and the engine part is increased, the friction force is increased, and the fixing effect is further improved; simultaneously through being provided with gasket 4 between location stopband 3 and head 2, gasket 4 can increase the area of contact between the part of head 2 and engine, increases frictional force, and then improves fixed effect, reduces because of the vibrations of engine self lead to the bolt not hard up, and then lead to the not hard up possibility of spare part of engine. Secondly, set up the shape into counter bore 41 through the hole with gasket 4, it is corresponding with the shape of the cover body 31 and roof 32, compare in current planar pad spare structure, the utility model discloses increased the area of contact between location only cover 3 and the gasket 4, increased frictional force, and then improved fixed efficiency.
Example two
The present embodiment differs from the above embodiments in that: as shown in fig. 2 and 5, the positioning stop sleeve 3 further comprises an expansion ring 33 and a water stop ring 34; the expansion ring 33 and the water stop ring 34 are sequentially sleeved on the sleeve body 31 from top to bottom, and the expansion ring 33 and the water stop ring 34 can be integrally formed with the outer wall of the sleeve body 31 or can be fixed on the outer wall of the sleeve body 31 in the existing welding mode.
By arranging the expansion ring 33 and the water stop ring 34 on the outer wall of the sleeve body 31, water can be stopped, and the sleeve body 31 can be prevented from being corroded.
EXAMPLE III
The present embodiment differs from the above embodiments in that: as shown in fig. 5, the outer wall of the bottom of the cylinder of the sleeve body 31 is a slope structure which is gradually chamfered towards the center thereof; the outer wall of the bottom of the cylinder body of the sleeve body 31 is of a slope structure which is gradually chamfered towards the center of the cylinder body, so that the stress area of the sleeve body 31 is reduced, and the sleeve body 31 can conveniently enter a positioning notch on a part of an engine.
Example four
The present embodiment differs from the above embodiments in that: as shown in fig. 4 and 6, the top plate 32 includes a disc 321 and a spacer 322; the cushion blocks 322 are annularly and equidistantly fixed on the annular wall of the disc 321; the utility model discloses a setting of cushion 322 uses cushion 322 to replace partial disc 321, increases the inflation gap of roof 32 in counter bore 41.
EXAMPLE five
The present embodiment differs from the above embodiments in that: as shown in FIG. 1, the head 2 has a polygonal opposite-side structure; through setting up head 2 to the structure of polygonal opposite side, the use spanner of being convenient for carries out the dismouting.
As shown in fig. 1 and 3, the inner diameter of the upper hole body of the counter bore 41 is smaller than the distance between two opposite corners of the head 2; by the structure that the inner diameter of the upper hole body of the counter bore 41 is set to be smaller than the distance between two opposite corners of the head 2, the problem that water flows into the counter bore 41 from a gap between the head 2 and the counter bore 41, which causes corrosion of the positioning stop sleeve 3, is avoided.
As shown in fig. 1, 3 and 4, the length of the top plate 32 is greater than the inner diameter of the lower bore body of the counterbore 41; by configuring the length of the top plate 32 to be greater than the inner diameter of the lower hole body of the counterbore 41, it is ensured that the top plate 32 can be limited in the upper hole body of the counterbore 41.
The above embodiments are only used to illustrate the technical solution of the present invention, and not to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, it should be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; such modifications and substitutions do not depart from the spirit and scope of the present invention in its corresponding aspects.
Claims (9)
1. The utility model provides a bolt structure for fixing engine part, includes integrated into one piece's screw rod and head, its characterized in that: the positioning stop sleeve is sleeved at the upper end of the screw rod; the gasket is sleeved at the upper end of the positioning stop sleeve, and the top end of the gasket is contacted with the bottom of the head.
2. A bolt structure for fixing an engine part according to claim 1, wherein: the positioning stop sleeve comprises a sleeve body and a top plate which are integrally formed; the sleeve body is of a cylinder structure with openings at two ends and is sleeved at the upper end of the screw rod; the top plate is fixed on the top of the sleeve body, and the top of the top plate is fixedly connected with the bottom of the head.
3. A bolt structure for fixing an engine part according to claim 2, wherein: the positioning stop sleeve also comprises an expansion ring and a water stop ring; the expansion ring and the water stop ring are sequentially sleeved on the sleeve body from top to bottom.
4. A bolt structure for fixing an engine part according to claim 3, wherein: the middle part of the gasket is provided with a counter bore, the sleeve body is sleeved inside a lower hole body of the counter bore, and the top plate is limited in an upper hole body of the counter bore.
5. A bolt structure for fixing an engine part according to claim 2, wherein: the outer wall of the bottom of the cylinder body of the sleeve body is of a slope structure which is gradually chamfered towards the center position.
6. A bolt structure for fixing an engine part according to claim 2, wherein: the top plate comprises a disc and a cushion block; the cushion blocks are annularly and equidistantly fixed on the annular wall of the disc.
7. A bolt structure for fixing an engine part according to claim 4, wherein: the head is in a polygonal opposite side structure.
8. A bolt structure for fixing an engine part according to claim 7, wherein: the inner diameter of the upper hole body of the counter bore is smaller than the distance between two opposite corners of the head.
9. A bolt structure for fixing an engine part according to claim 8, wherein: the length of the top plate is larger than the inner diameter of the lower hole body of the counter bore.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020565213.XU CN212106580U (en) | 2020-04-16 | 2020-04-16 | Bolt structure for fixing engine parts |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020565213.XU CN212106580U (en) | 2020-04-16 | 2020-04-16 | Bolt structure for fixing engine parts |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN212106580U true CN212106580U (en) | 2020-12-08 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202020565213.XU Active CN212106580U (en) | 2020-04-16 | 2020-04-16 | Bolt structure for fixing engine parts |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN212106580U (en) |
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2020
- 2020-04-16 CN CN202020565213.XU patent/CN212106580U/en active Active
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