CN206738371U - A kind of engine cylinder cover Bolt-protecting cap - Google Patents
A kind of engine cylinder cover Bolt-protecting cap Download PDFInfo
- Publication number
- CN206738371U CN206738371U CN201720525835.8U CN201720525835U CN206738371U CN 206738371 U CN206738371 U CN 206738371U CN 201720525835 U CN201720525835 U CN 201720525835U CN 206738371 U CN206738371 U CN 206738371U
- Authority
- CN
- China
- Prior art keywords
- bolt
- accommodating chamber
- spring caps
- protecting cap
- connecting portion
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
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Abstract
The utility model discloses a kind of engine cylinder cover Bolt-protecting cap; including the pluggable spring caps in cylinder bolt end; described spring caps are the stepped sleeves that diameter is gradually reduced from its one end to the other end; it is more than the accommodating chamber of the end thread maximum gauge of cylinder bolt in described spring caps provided with diameter; it is provided with multiple raised along its surface of revolution on the inside of described accommodating chamber and is connected with the surface of revolution formation one of the accommodating chamber with cylinder bolt along the axially extending rib of the accommodating chamber, described multiple ribs and is in wavy male and fomale(M＆F).The utility model is simple in construction; it is easy to make; the end thread of cylinder bolt is sealed using the spring caps that plastic production forms; protect cylinder bolt screw thread injury-free; prevent screw thread from getting rusty, also, be connected between the spring caps and the screw thread of cylinder bolt by the way of rib; convenient disassembly, improve efficiency of assembling.
Description
Technical field
Engine manufacturing technology field is the utility model is related to, more specifically, it relates to a kind of engine cylinder bonnet bolt
Protective cap.
Background technology
Engine is during the manufacturing, process that cylinder block generally relates to multiple assemblings, especially by cylinder
Lid is installed in cylinder block, and during cylinder block is assembled, typically cylinder bolt is screwed in cylinder block, then will
Cylinder block is carried to next streamline and assembled, and because cylinder bolt is studs, its exposed one end is threaded,
During carrying, cylinder bolt easily with suspension hook or other parts scratchings, so as to damage the screw thread of cylinder bolt, causes
The phenomenon of cylinder head can not be assembled, also, because environmental problem, the screw thread of cylinder bolt get rusty easily, so as to influence assembling essence
Degree.
Utility model content
The technical problems to be solved in the utility model is the above-mentioned deficiency for prior art, there is provided it is a kind of simple in construction,
It is easy to make, effectively improve assembly precision and protect the injury-free engine cylinder cover Bolt-protecting cap of screw thread.
The technical solution of the utility model is such：A kind of engine cylinder cover Bolt-protecting cap, including it is pluggable in cylinder
The spring caps of bonnet bolt end, the stepped sleeves that described spring caps are gradually reduced for diameter from its one end to the other end, institute
It is more than the accommodating chamber of the end thread maximum gauge of cylinder bolt in the spring caps stated provided with diameter, is set on the inside of described accommodating chamber
Have multiple raised along its surface of revolution and returned along the axially extending rib of the accommodating chamber, described multiple ribs with the accommodating chamber
Turn face and form one with cylinder bolt to be connected and be in wavy male and fomale(M＆F).
As a further improvement, described rib is the convex tendon of semicircle shape.
Further, described rib is symmetrically distributed on the surface of revolution of the accommodating chamber, also, described rib and cylinder
It is interference fit between the end thread of bonnet bolt.
Further, the peak line of the multiple rib forms a circular cavity, also, the circular cavity diameter is less than cylinder
The end thread maximum gauge of bonnet bolt.
Further, the force section that described spring caps include with spanner to be connected is connected with the force section and diameter is big
It is connected in the connecting portion of the force section and with the connecting portion and diameter is more than the compressed part of the connecting portion.
Further, described force section is solid structure, and described connecting portion and compressed part are hollow structure, and
And described accommodating chamber is located in described connecting portion.
Further, the force section, connecting portion and compressed part be by the integrally formed working of plastics of plastic material, and
And the axial line of the force section, connecting portion and compressed part coincides.
Beneficial effect
The utility model compared with prior art, has the following advantages that：
1st, the utility model is simple in construction, easy to make, using the spring caps that plastic production forms by the end of cylinder bolt
Portion's thread seal, protection cylinder bolt screw thread is injury-free, prevents screw thread from getting rusty, also, the spiral shell of the spring caps and cylinder bolt
It is connected between line by the way of rib, convenient disassembly, improves assembly precision and efficiency of assembling；Meanwhile set on the spring caps
There is force section, be easy to operate spring caps, reduce labor intensity, be additionally provided with compressed part, can be fine when installing spring caps
It is connected with the nut of cylinder bolt, avoids directly impacting connecting portion, effectively extend the service life of protective cap.
Brief description of the drawings
Fig. 1 is the structural representation that the utility model is applied on engine；
Fig. 2 is the structure enlargement diagram at A in Fig. 1；
Fig. 3 is the front view structure enlarged diagram of the utility model spring caps；
Fig. 4 is the left view structure enlargement diagram of spring caps in the utility model；
Fig. 5 is that the right side of spring caps in the utility model regards structure enlargement diagram；
Fig. 6 is the structure enlargement diagram at B in Fig. 5.
Wherein：1- cylinder bolts, 2- spring caps, 3- accommodating chambers, 4- ribs, 5- male and fomale(M＆F)s, 6- cylinder block, 21- force sections,
22- connecting portions, 23- compressed parts.
Embodiment
Specific embodiment in below in conjunction with the accompanying drawings is described further to the utility model.
Refering to Fig. 1-6, a kind of engine cylinder cover Bolt-protecting cap of the present utility model, including it is pluggable in cylinder bolt 1
The spring caps 2 of end, the screw thread on cylinder bolt 1 is covered, the spring caps 2 are that diameter is gradually reduced from its one end to the other end
Stepped sleeves, in practical application, cylinder bolt 1 is vertically screwed in cylinder block 6, and the big one end of the diameter of spring caps 2 is leaned on
Nearly cylinder block 6, the small one end of diameter is away from cylinder block 6, that is, after installing, the diameter of the spring caps 2 once increases from top to bottom,
It is more than the accommodating chamber 3 of the end thread maximum gauge of cylinder bolt 1 provided with diameter in spring caps 2, appearance is provided for cylinder bolt 1
Receive space, be easily installed spring caps 2, be additionally provided with the inner side of accommodating chamber 3 it is multiple raised along its surface of revolution and along the accommodating chamber 3 axially
The rib 4 of extension, also, the surface of revolution of multiple ribs 4 and accommodating chamber 3 forms one and is connected with cylinder bolt 1 and is in wave
The male and fomale(M＆F) 5 of shape, reduce the contact area of spring caps 2 and cylinder bolt 1, be easy to dismount.The utility model is simple in construction, system
Facilitate, the end thread of cylinder bolt 1 is sealed using the spring caps 2 that plastic production forms, protects the screw thread of cylinder bolt 1
It is injury-free, prevent screw thread from getting rusty, also, be connected between the spring caps 2 and the screw thread of cylinder bolt 1 by the way of rib 4,
Convenient disassembly, improve assembly precision and efficiency of assembling.
In the above embodiments, the rib 4 of accommodating chamber 3 is the convex tendon of semicircle shape in spring caps 2, makes rib 4 and cylinder cap spiral shell
Arc contact is formed between bolt 1, reduces friction, avoids contacting and damaged screw, its multiple rib 4 are symmetrically distributed in receiving
On the surface of revolution of chamber 3, also, be interference fit between each rib 4 and the end thread of cylinder bolt 1, make each rib 4 by
Power is uniform, so as to extend the service life of spring caps 2；The peak line of multiple ribs 4 forms a circular cavity, also, should
Circular cavity diameter is less than the end thread maximum gauge of cylinder bolt 1, it is ensured that cylinder block 6 is during movement, and spring caps 2 are not
Come off.
In the present embodiment, the force section 21 that spring caps 2 include with spanner to be connected is connected with the force section 21 and diameter
Be connected more than the connecting portion 22 of the force section 21 and with the connecting portion 22 and diameter be more than the connecting portion 22 compressed part 23,
When spring caps 2 are difficult to manual teardown, spring caps 2 can be exerted a force by spanner, it is easy to disassemble, can be with when installing spring caps 2
The nut with cylinder bolt 1 is connected very well, avoids directly impacting connecting portion 22, effectively extends the service life of protective cap；Its
In, force section 21 is solid structure, and connecting portion 22 and compressed part 23 are hollow structure, and the rigidity for improving spring caps 2 is strong
Degree, also, accommodating chamber 3 is located in connecting portion 22, protects the rib 4 in accommodating chamber 3 well；Force section 21, connecting portion 22
It is by the integrally formed working of plastics of plastic material with compressed part 23, is easy to dismount, avoids between spring caps 2 and cylinder bolt 1
Rigidity friction is produced, also, the axial line of force section 21, connecting portion 22 and compressed part 23 coincides, and improves the same of spring caps 2
Axle precision, ensure that the screw thread of cylinder bolt 1 is injury-free.
Above-described is only preferred embodiment of the present utility model, it should be pointed out that is come for those skilled in the art
Say, on the premise of the utility model structure is not departed from, several modifications and improvements can also be made, these are all without this reality of influence
With the effect and practical applicability of new implementation.
Claims (7)
1. a kind of engine cylinder cover Bolt-protecting cap, it is characterised in that including the pluggable spring caps in cylinder bolt (1) end
(2) stepped sleeves that, described spring caps (2) are gradually reduced for diameter from its one end to the other end, described spring caps (2)
The accommodating chamber (3) of the interior end thread maximum gauge for being more than cylinder bolt (1) provided with diameter, described accommodating chamber (3) inner side are set
Have it is multiple raised along its surface of revolution and along the axially extending rib (4) of the accommodating chamber (3), described multiple ribs (4) with it is described
The surface of revolution formation one of accommodating chamber (3) is connected with cylinder bolt (1) and is in wavy male and fomale(M＆F) (5).
2. a kind of engine cylinder cover Bolt-protecting cap according to claim 1, it is characterised in that described rib (4) is
The convex tendon of semicircle shape.
3. a kind of engine cylinder cover Bolt-protecting cap according to claim 2, it is characterised in that described rib (4) is right
Title is distributed on the surface of revolution of the accommodating chamber (3), also, between the end thread of described rib (4) and cylinder bolt (1)
For interference fit.
A kind of 4. engine cylinder cover Bolt-protecting cap according to claim 3, it is characterised in that the multiple rib (4)
Peak line formed a circular cavity, also, the circular cavity diameter be less than cylinder bolt (1) end thread maximum gauge.
5. a kind of engine cylinder cover Bolt-protecting cap according to any one in claim 1-4, it is characterised in that described
Spring caps (2) include that the force section (21) that can be connected with spanner is connected with the force section (21) and diameter is more than the force section
(21) connecting portion (22) and it is connected with the connecting portion (22) and diameter is more than the compressed part (23) of the connecting portion (22).
A kind of 6. engine cylinder cover Bolt-protecting cap according to claim 5, it is characterised in that described force section (21)
For solid structure, described connecting portion (22) and compressed part (23) are hollow structure, also, described accommodating chamber (3) position
In described connecting portion (22).
A kind of 7. engine cylinder cover Bolt-protecting cap according to claim 5, it is characterised in that the force section (21),
Connecting portion (22) and compressed part (23) are by the integrally formed working of plastics of plastic material, also, the force section (21), connection
The axial line of portion (22) and compressed part (23) coincides.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720525835.8U CN206738371U (en) | 2017-05-12 | 2017-05-12 | A kind of engine cylinder cover Bolt-protecting cap |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720525835.8U CN206738371U (en) | 2017-05-12 | 2017-05-12 | A kind of engine cylinder cover Bolt-protecting cap |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206738371U true CN206738371U (en) | 2017-12-12 |
Family
ID=60565533
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720525835.8U Expired - Fee Related CN206738371U (en) | 2017-05-12 | 2017-05-12 | A kind of engine cylinder cover Bolt-protecting cap |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206738371U (en) |
-
2017
- 2017-05-12 CN CN201720525835.8U patent/CN206738371U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20171212 |