CN208486956U - A kind of sealing structure of cylinder head and valve mechanism cover - Google Patents

Abstract

The utility model discloses the sealing structures of a kind of cylinder head and valve mechanism cover, including cylinder head and valve mechanism cover, the upper surface of the cylinder head is flexibly connected with the lower surface of valve mechanism cover, the upper surface of the cylinder head offers the first fixing groove and the second fixing groove respectively, the quantity of first fixing groove is two, and two first fixing grooves are symmetricly set on the upper surface of cylinder head using the center line of cylinder head as symmetry axis.The sealing structure of the cylinder head and valve mechanism cover is by being arranged heat-conducting plate in the inside of sliding slot, the gas transferred heat in air chamber when temperature increases in valve mechanism cover makes gas expansion, heat-conducting plate is set to rise the gas in compressed gas chamber when pressure increases in valve mechanism cover simultaneously, rubber weather strip decline can be effectively pushed to connect rubber weather strip closely with the second fixing groove, airtightness between effective lifting cylinder lid and valve mechanism cover, the leakproofness of device greatly promotes, and runs device preferably.

Description

A kind of sealing structure of cylinder head and valve mechanism cover

Technical field

The utility model relates to cylinder head technical field, the sealing structure of specially a kind of cylinder head and valve mechanism cover.

Background technique

Cylinder is the cylindrical metal parts for guiding piston to carry out straight reciprocating motion in cylinder, and air is in cylinder In mechanical energy converted heat by expansion, gas receiving piston in compresser cylinder compresses and improves pressure, turbine, The shell of rotary engine etc. is usually also referred to as " cylinder ", the application field of cylinder: printing (tension force), semiconductor (mash welder, chip grinding), automation control, robot etc., cylinder head are the essential structure of cylinder, cylinder head damage Phenomenon is mostly the deformation of raising one's head and looking (destroying sealing) of cylinder cap and cylinder holes sealing plane, Valve seat hole crackle, spark plug Screw thread damage is installed but etc., the cylinder cap especially poured with aluminium alloy, because its material hardness is lower, intensity is also relatively poor, compares Be easily deformed and damage, thus consumption be made as compared with cast iron it is more, existing majority cylinders when in use cylinder head and valve mechanism cover it Between the compactness that connects it is poor, cause the leakproofness of device poor, influence the normal use of device.

Utility model content

(1) the technical issues of solving

In view of the deficiencies of the prior art, the utility model provides the sealing structure of a kind of cylinder head and valve mechanism cover, solution The poor problem of the compactness that existing most cylinder connects between cylinder head and valve mechanism cover when in use of having determined.

(2) technical solution

To achieve the above object, the utility model provides the following technical solutions: a kind of sealing of cylinder head and valve mechanism cover Structure, including cylinder head and valve mechanism cover, the upper surface of the cylinder head are flexibly connected with the lower surface of valve mechanism cover, the gas The upper surface of cylinder cap offers the first fixing groove and the second fixing groove respectively, and the quantity of first fixing groove is two, two First fixing groove is symmetricly set on the upper surface of cylinder head, second fixing groove using the center line of cylinder head as symmetry axis Between two first fixing grooves, the upper surface of the cylinder head is fixedly connected with fixed block, the fixed block it is outer Wall is fixedly connected with guide pad, and the outer wall of the guide pad is flexibly connected with the inner wall of valve mechanism cover, and the valve mechanism cover deviates from The outer wall in face offers mounting groove, and link block and rubber cushion blocks, the connection have been respectively fixedly connected on the inside of the mounting groove The lower surface of block is fixedly connected with the upper surface of rubber cushion blocks, and the upper surface of the link block offers through slot, the through slot Internal activity is connected with bolt column, and the bottom end of the bolt column runs through rubber cushion blocks and extends to the inside of the first fixing groove, institute The outer wall for stating bolt column is flexibly connected with the inner wall of the first fixing groove, offers air chamber at the top of the valve mechanism cover inner wall, The inner wall of the air chamber offers sliding slot, and the internal activity of the air chamber is connected with heat-conducting plate, the outer wall of the heat-conducting plate It is flexibly connected with the inner wall of sliding slot, the inside of the valve mechanism cover offers intercommunicating pore, and the shape of the intercommunicating pore is L shape, institute The one end for stating intercommunicating pore is connected with the inside of air chamber, is connected inside the other end of the intercommunicating pore and the second fixing groove, The internal activity of the intercommunicating pore is connected with rubber weather strip, and the outer wall of the rubber weather strip is solid with intercommunicating pore and second respectively The inner wall for determining slot is flexibly connected.

Preferably, the shape of the fixed block is annular shape.

Preferably, the shape of facing of the guide pad is trapezoidal.

Preferably, the quantity of second fixing groove is four, and four second fixing grooves are in a manner of annular array Uniformly it is provided with the upper surface of cylinder head.

Preferably, the quantity of second fixing groove is four, and four second fixing grooves are in a manner of annular array Uniformly it is provided with the upper surface of cylinder head.

Preferably, the quantity of the sliding slot is two, and two sliding slots are provided with the inner wall of air chamber opposite face.

(3) beneficial effect

The utility model provides the sealing structure of a kind of cylinder head and valve mechanism cover, has following the utility model has the advantages that this reality With novel by the way that heat-conducting plate is arranged in the inside of sliding slot, transferred heat in air chamber when temperature increases in valve mechanism cover Gas makes gas expansion, while so that heat-conducting plate is risen the gas in compressed gas chamber, Neng Gouyou when pressure increase in valve mechanism cover The promotion rubber weather strip decline of effect connect rubber weather strip closely with the second fixing groove, effective lifting cylinder lid and cylinder The leakproofness of airtightness between housing, device greatly promotes, and runs device preferably.

Detailed description of the invention

Fig. 1 is the utility model front view；

Fig. 2 is enlarged drawing at A in the utility model Fig. 1；

Fig. 3 is the utility model guide pad cross-sectional view.

In figure: 1 cylinder head, 2 valve mechanism cover, 3 first fixing grooves, 4 second fixing grooves, 5 fixed blocks, 6 guide pads, 7 installations Slot, 8 link blocks, 9 rubber cushion blocks, 10 through slots, 11 bolt columns, 12 air chambers, 13 sliding slots, 14 heat-conducting plates, 15 intercommunicating pores, 16 rubber Sealing strip.

Specific embodiment

The following will be combined with the drawings in the embodiments of the present invention, carries out the technical scheme in the embodiment of the utility model Clearly and completely describe, it is clear that the described embodiments are only a part of the embodiments of the utility model, rather than whole Embodiment.Based on the embodiments of the present invention, those of ordinary skill in the art are without making creative work Every other embodiment obtained, fall within the protection scope of the utility model.

As shown in Figure 1-3, the utility model provides a kind of technical solution: a kind of sealing knot of cylinder head and valve mechanism cover Structure, including cylinder head 1 and valve mechanism cover 2, the upper surface of cylinder head 1 are flexibly connected with the lower surface of valve mechanism cover 2, cylinder head 1 Upper surface offer the first fixing groove 3 and the second fixing groove 4 respectively, the quantity of the first fixing groove 3 is two, and two first are solid Determine the upper surface that slot 3 is symmetricly set on cylinder head 1 using the center line of cylinder head 1 as symmetry axis, the quantity of the second fixing groove 4 is four A, four the second fixing grooves 4 are uniformly provided with the upper surface of cylinder head 1 in a manner of annular array, can effectively increase The compactness connected between cylinder head 1 and valve mechanism cover 2, makes the connection that device is more stable, and the second fixing groove 4 is located at two the Between one fixing groove 3, the upper surface of cylinder head 1 is fixedly connected with fixed block 5, and the shape of fixed block 5 is annular shape, can make solid Determine the more uniform inner wall to valve mechanism cover 2 of block 5 to be fixed, be connected between effective lifting cylinder lid 1 and valve mechanism cover 2 Leakproofness, the outer wall of fixed block 5 is fixedly connected with guide pad 6, and the outer wall of guide pad 6 and the inner wall activity of valve mechanism cover 2 connect Connect, guide pad 6 face shape be it is trapezoidal, guide pad 6 is rubber block, when valve mechanism cover 2 and cylinder head 1 fasten, cylinder head The inner wall of cover 2 is connect with the outer wall of guide pad 6, and turning bolt column 11 declines valve mechanism cover 2, is squeezed guide pad 6, is made cylinder head Gap between 1 and valve mechanism cover 2 is blocked, the leakproofness between effective lifting cylinder lid 1 and valve mechanism cover 2, cylinder Outer wall of the housing 2 away from face offers mounting groove 7, and the inside of mounting groove 7 has been respectively fixedly connected with link block 8 and rubber cushion blocks 9, The lower surface of link block 8 is fixedly connected with the upper surface of rubber cushion blocks 9, by the way that rubber is arranged between cylinder head 1 and valve mechanism cover 2 Rubber mat block 9 can effectively increase the compactness between cylinder head 1 and valve mechanism cover 2, while avoid cylinder head 1 and cylinder head The case where junction is damaged when covering 2 hard contact, the upper surface of link block 8 offer through slot 10, through slot 10 it is interior Portion is connected with bolt column 11, and the bottom end of bolt column 11 runs through rubber cushion blocks 9 and extends to the inside of the first fixing groove 3, spiral shell The outer wall of hitching post 11 is flexibly connected with the inner wall of the first fixing groove 3, and the inner wall of the first fixing groove 3 offers and 11 outer wall of bolt column The thread groove that screw thread matches can keep cylinder head 1 and valve mechanism cover 2 fixed, simplify dress by simply turning bolt column 11 The attended operation set offers air chamber 12 at the top of 2 inner wall of valve mechanism cover, and the inner wall of air chamber 12 offers sliding slot 13, sliding The quantity of slot 13 is two, and two sliding slots 13 are provided with the inner wall of 12 opposite face of air chamber, by setting in the inside of air chamber 12 Two opposite sliding slots 13 are set, effectively heat-conducting plate 14 can be fixed, the movement for keeping heat-conducting plate 14 more stable, gas The internal activity of chamber 12 is connected with heat-conducting plate 14, and the outer wall of heat-conducting plate 14 is flexibly connected with the inner wall of sliding slot 13, valve mechanism cover 2 Inside offers intercommunicating pore 15, and the shape of intercommunicating pore 15 is L shape, and one end of intercommunicating pore 15 is connected with the inside of air chamber 12, It is connected inside the other end of intercommunicating pore 15 and the second fixing groove 4, the internal activity of intercommunicating pore 15 is connected with rubber weather strip 16, The outer wall of rubber weather strip 16 is flexibly connected with the inner wall of intercommunicating pore 15 and the second fixing groove 4 respectively, by sliding slot 13 Heat-conducting plate 14 is arranged in portion, and the gas transferred heat in air chamber 12 when temperature increases in valve mechanism cover 2 makes gas expansion, So that heat-conducting plate 4 is risen the gas in compressed gas chamber 12 when pressure increases in valve mechanism cover 2 simultaneously, can effectively push rubber The decline of sealing strip 16 connect rubber weather strip 16 closely with the second fixing groove 4, effective lifting cylinder lid 1 and valve mechanism cover 2 Between airtightness, the leakproofness of device greatly promotes, and runs device preferably.

In conclusion the utility model is matched by setting guide pad 6, rubber cushion blocks 9 and heat-conducting plate 14, when use, will Rubber weather strip 16 is inserted into intercommunicating pore 15, and cylinder head 1 and valve mechanism cover 2 are fastened, the inner wall and guide pad 6 of valve mechanism cover 2 Outer wall connection, turn bolt column 11 make valve mechanism cover 2 decline, squeeze guide pad 6, make between cylinder head 1 and valve mechanism cover 2 Gap is blocked, the leakproofness between effective lifting cylinder lid 1 and valve mechanism cover 2, and the shape of fixed block 5 is annular shape, The more uniform inner wall to valve mechanism cover 2 of fixed block 5 can be made to be fixed, effective lifting cylinder lid 1 and valve mechanism cover 2 Between the leakproofness that connects by the way that rubber cushion blocks 9 are arranged between cylinder head 1 and valve mechanism cover 2 can effectively increase cylinder Compactness between lid 1 and valve mechanism cover 2, while cylinder head 1 being avoided to be damaged with junction when 2 hard contact of valve mechanism cover The case where occur, when cylinder operation, the gas transferred heat in air chamber 12 when temperature increases in valve mechanism cover 2 makes gas Body expansion, while so that heat-conducting plate 4 is risen the gas in compressed gas chamber 12 when pressure increase in valve mechanism cover 2, by gas Two opposite sliding slots 13 are arranged in the inside of chamber 12, and effectively heat-conducting plate 14 can be fixed, and keep heat-conducting plate 14 more steady Fixed movement can effectively push rubber weather strip 16 to decline, make rubber weather strip when the gas expansion in air chamber 12 16 closely connect with the second fixing groove 4, the airtightness between effective lifting cylinder lid 1 and valve mechanism cover 2, the leakproofness of device It greatly promotes, runs device preferably.

It should be noted that, in this document, relational terms such as first and second and the like are used merely to a reality Body or operation are distinguished with another entity or operation, are deposited without necessarily requiring or implying between these entities or operation In any actual relationship or order or sequence.Moreover, the terms "include", "comprise" or its any other variant are intended to Non-exclusive inclusion, so that the process, method, article or equipment including a series of elements is not only wanted including those Element, but also including other elements that are not explicitly listed, or further include for this process, method, article or equipment Intrinsic element.

While there has been shown and described that the embodiments of the present invention, for the ordinary skill in the art, It is understood that these embodiments can be carried out with a variety of variations in the case where not departing from the principles of the present invention and spirit, repaired Change, replacement and variant, the scope of the utility model is defined by the appended claims and the equivalents thereof.

Claims (6)

1. the sealing structure of a kind of cylinder head and valve mechanism cover, including cylinder head (1) and valve mechanism cover (2), it is characterised in that: institute The upper surface for stating cylinder head (1) is flexibly connected with the lower surface of valve mechanism cover (2), and the upper surface of the cylinder head (1) is opened respectively Equipped with the first fixing groove (3) and the second fixing groove (4), the quantity of first fixing groove (3) is two, and two described first solid Determine the upper surface that slot (3) is symmetricly set on cylinder head (1) using the center line of cylinder head (1) as symmetry axis, second fixing groove (4) it is located between two first fixing grooves (3), the upper surface of the cylinder head (1) is fixedly connected with fixed block (5), institute The outer wall for stating fixed block (5) is fixedly connected with guide pad (6), and the outer wall of the guide pad (6) and the inner wall of valve mechanism cover (2) are living Dynamic connection, outer wall of the valve mechanism cover (2) away from face offer mounting groove (7), and the inside of the mounting groove (7) is fixed respectively It is connected with link block (8) and rubber cushion blocks (9), the fixed company in the lower surface of the link block (8) and the upper surface of rubber cushion blocks (9) It connects, the upper surface of the link block (8) offers through slot (10), and the internal activity of the through slot (10) is connected with bolt column (11), the bottom end of the bolt column (11) runs through rubber cushion blocks (9) and extends to the inside of the first fixing groove (3), the bolt The outer wall of column (11) is flexibly connected with the inner wall of the first fixing groove (3), offers gas at the top of valve mechanism cover (2) inner wall The inner wall of chamber (12), the air chamber (12) offers sliding slot (13), and the internal activity of the air chamber (12) is connected with thermally conductive The outer wall of plate (14), the heat-conducting plate (14) is flexibly connected with the inner wall of sliding slot (13), and the inside of the valve mechanism cover (2) opens up Have intercommunicating pore (15), the shape of the intercommunicating pore (15) is L shape, one end of the intercommunicating pore (15) and the inside of air chamber (12) It is connected, is connected inside the other end and the second fixing groove (4) of the intercommunicating pore (15), the inside of the intercommunicating pore (15) is living It is dynamic to be connected with rubber weather strip (16), the outer wall of the rubber weather strip (16) respectively with intercommunicating pore (15) and the second fixing groove (4) inner wall is flexibly connected.

2. the sealing structure of a kind of cylinder head and valve mechanism cover according to claim 1, it is characterised in that: the fixed block (5) shape is annular shape.

3. the sealing structure of a kind of cylinder head and valve mechanism cover according to claim 1, it is characterised in that: the guide pad (6) shape of facing is trapezoidal.

4. the sealing structure of a kind of cylinder head and valve mechanism cover according to claim 1, it is characterised in that: described second is solid The quantity for determining slot (4) is four, and four second fixing grooves (4) are uniformly provided with cylinder head in a manner of annular array (1) upper surface.

5. the sealing structure of a kind of cylinder head and valve mechanism cover according to claim 1, it is characterised in that: described first is solid The inner wall for determining slot (3) offers the thread groove to match with bolt column (11) outer wall thread.

6. the sealing structure of a kind of cylinder head and valve mechanism cover according to claim 1, it is characterised in that: the sliding slot (13) quantity is two, and two sliding slots (13) are provided with the inner wall of air chamber (12) opposite face.