CN212251618U - Ventilation pipe joint closes piece - Google Patents

Abstract

The utility model discloses a ventilation pipe joint assembly, belonging to the technical field of automobile parts, comprising a joint body and a limiting part, the outer side wall of the joint body is provided with a first connecting part and a second connecting part, the limiting part comprises a first limiting part and a second limiting part, a first fixing part is arranged between the first connecting part and the second connecting part, a first fixing part is arranged on the first limiting part, the second fixing part is arranged on the second limiting part, the first fixing part is matched with the first fixing part, the second fixing part is arranged on the outer side wall of the male joint, the second fixing part is matched with the second fixing part, and the first fixing part and the second fixing part are arranged oppositely, so that the joint body and the male joint can be simultaneously spliced into the second limiting part, the installation is convenient and rapid, the installation efficiency can be improved, and when the sealing ring is replaced or repaired, the whole joint body does not need to be replaced, so that the material can be saved.

Description

Ventilation pipe joint closes piece

Technical Field

The utility model belongs to the technical field of automobile parts, especially, relate to a joint closes piece for connecting crankcase and ventilation pipe.

Background

In an automobile engine, a forced crankcase ventilation mode is generally adopted in a crankcase ventilation mode, the crankcase ventilation aims at preventing lubricating oil from deteriorating, fuel oil from diluting engine oil, part abrasion can be reduced, and sulfurous acid and sulfuric acid generated by reaction of sulfur dioxide, water and oxygen are prevented from generating a corrosion phenomenon on engine parts to influence the performance of the engine; on the other hand, the ventilation of the crankcase has the functions of pressure reduction, temperature reduction and leakage prevention, and can prevent waste gas and combustible mixed gas from entering the crankcase, so that the pressure and the temperature in the crankcase are increased, and lubricating oil is leaked from a crankshaft oil seal and a gasket; in addition, by recycling the combustible gas, the exhaust emission can be reduced, the direct exhaust of the tail gas of the engine can be reduced, the combustible gas in the tail gas is combusted again to generate power, and the use efficiency of the fuel oil can be improved.

In the crankcase ventilation connecting pipe, a male joint on the crankcase needs to be connected with the ventilation pipe, the connection is carried out in a traditional mode by utilizing a joint clamping mode, in order to improve the connection effect and prevent the clamped male joint from being pulled out manually to influence the performance of the engine and even cause the damage of the engine, the Chinese patent application No. 202010074626.2, whose application date is 2020, 01, 22, discloses a ventilating pipe joint and a crankcase, the ventilation pipe joint comprises a joint main body and a clamping sleeve, wherein the clamping sleeve is sleeved on the joint main body, when the male fitting is connected to the vent fitting, the male fitting is positioned between the fitting body and the ferrule, the internal surface of cutting ferrule is equipped with the barb, the barb be used for with boss joint cooperation, the surface that connects the main part is close to the one end of cutting ferrule is equipped with the sealing washer, the sealing washer be used for with male joint extrusion contact. The ventilating pipe joint is not easy to detach after being fixed, and the connecting effect of the male joint and the ventilating pipe can be effectively protected.

The application date is 2014, 03 and 25, and the Chinese patent with the application number of 2014101135260 discloses a connecting joint, wherein one end of the connecting joint is connected with a male joint on an engine, the connecting joint comprises a connecting piece main body and a lock spring, a cavity is arranged in the connecting piece main body, one end of the cavity is connected with the male joint, the other end of the cavity is connected with a ventilation pipe, the lock spring is arranged in the cavity, a boss is arranged on the male joint, the male joint is inserted into the cavity, the boss of the male joint is matched with the lock spring, and the lock spring is used for limiting the male joint. When the connecting joint is used, only the male joint needs to be inserted into the connecting joint, and thread installation is not needed, so that the installation time of an engine and a ventilation pipe can be saved, and the overall installation efficiency of the engine is improved.

However, when the engine needs to be repaired, or when the sealing ring between the male joint and the ventilation pipe joint is degraded due to high temperature and aging, and the sealing ring needs to be replaced, or when the connection joint needs to be disassembled due to other reasons, the whole connection joint needs to be damaged, so that the connection joint and the male joint are separated, the connection joint and the ventilation pipe need to be disassembled, and then a new connection joint is reinstalled, which causes material waste and affects the repair time.

SUMMERY OF THE UTILITY MODEL

The utility model aims to overcome among the prior art when need change the attach fitting sealing member on the crankcase or need repair, need destroy whole attach fitting, cause the material extravagant, influence the technical problem of repair time, provide one kind when repairing, need not change whole attach fitting, only need change local material, can avoid the material extravagant, a ventilation pipe joint closes the piece that can quick repair.

In order to solve the technical problem, the utility model provides a ventilation pipe joint closes piece, locating part including connecting body and fixed joint body the joint body in the middle of be provided with the through-hole that the axial direction link up, be provided with the connecting portion one of being connected with the ventilation pipe in the one end of the lateral wall that connects the body, be provided with the connecting portion two of being connected with the male joint at the other end that connects the body lateral wall, the locating part includes locating part one and locating part two, be provided with fixed part one between connecting portion one and connecting portion two, be provided with mounting one and mounting two respectively at the both ends of locating part, mounting one cooperatees with fixed part one, set up fixed part two at the lateral wall of male joint, mounting two cooperatees with fixed part two, mounting one sets up with mounting.

As a further improvement of the present invention, the first fixing member is a first conical surface, the first base of the first conical surface and the first end of the first locating member are integrally formed, the first conical surface gradually decreases from the first base toward the first port, the second fixing member is a second conical surface, the second base of the second conical surface and the second end of the second locating member are integrally formed, and the second conical surface gradually decreases from the second base toward the second port.

As the utility model discloses a further improvement measure, foretell ventilation pipe joint closes piece, and port one sets up with port two relatively the utility model discloses in, through relative port one and port two that set up, can make male joint and joint body insert the locating part from the relative direction from the both sides of locating part simultaneously, fix with the locating part, just so can avoid when dismantling, must dismantle joint body and ventilation pipe, need connect the technical problem who accomplishes back again and connect body and ventilation pipe reconnection. In the prior art, when the connector is disassembled, the limiting piece must be cut off, the connector body and the ventilation pipe are disassembled, and when the connector is re-assembled, the connector body firstly penetrates through the limiting piece from one side and then penetrates through the limiting piece from the other side to be re-connected with the ventilation pipe.

As a further improvement of the present invention, in the above-mentioned ventilation pipe joint assembly, the first fixing portion includes a first annular body and a second annular body, the first annular body has a diameter larger than that of the second annular body, a third conical surface is provided between the first annular body and the second annular body, the third conical surface is matched with the first conical surface, and when the first conical surface is engaged between the first annular body and the second annular body, the first fixing portion is fixed.

As a further improvement of the present invention, the diameter of the annular body II is larger than that of the port I, so as to prevent the first fixing member from falling off from the first fixing portion.

As the utility model discloses a further improvement measure, foretell ventilation pipe joint closes piece is provided with notch one along conical surface one on conical surface one, notch one set up to 2 to 10, set up notch one, can make port one have and open and close the performance, make things convenient for ring bodies two to pass through from port one.

As a further improvement of the present invention, the ventilation pipe joint assembly has a third annular body disposed on the second fixing portion, and the diameter of the third annular body is larger than that of the second port.

As the utility model discloses a further improvement measure, foretell ventilation pipe joint closes piece sets up notch two along two directions of conical surface on conical surface two of mounting two, notch two set up to 2 to 10, set up notch two, can make port two have and open and close the performance, make things convenient for ring body three to pass through from port two.

As a further improvement of the present invention, the ventilation pipe joint assembly is provided with a rotation stopping member between the first locating member and the second annular member, wherein the rotation stopping member comprises a first protruding block and a first groove body, the first protruding block and the first groove body are disposed on the first locating member, the protruding block is engaged with the groove body, and the rotation of the joint body is prevented when the protruding block is engaged with the groove body.

As the utility model discloses a further improvement measure, foretell ventilation pipe joint closes piece sets up annular recess on connecting portion two annular recess in the sealing washer plays sealed effect between the two outsides of connecting portion and male joint inboards.

The beneficial effects of the utility model reside in that: 1. through the oppositely arranged first fixing piece and the second fixing piece, the joint body and the male joint can be simultaneously inserted into the limiting piece, so that the installation is convenient and quick, and the installation efficiency can be improved; 2. the limiting piece is used for fixedly connecting the joint body and the male joint, when the sealing ring needs to be repaired or replaced, the joint body and the male joint can be separated only by cutting the limiting piece, and when the sealing ring needs to be reinstalled, the joint body and the male joint can be fixed again only by replacing the limiting piece, so that the working efficiency can be improved; 3. utilize the utility model discloses, when changing the sealing washer, need not change whole joint body, can save material like this.

Drawings

Fig. 1 is a perspective view of the present invention.

Fig. 2 is a front view of the present invention.

Fig. 3 is a left side view of the present invention.

Fig. 4 is a sectional view taken along line a-a in fig. 3.

Fig. 5 is a right side view of the position limiting member of the present invention.

Fig. 6 is a sectional view taken along line B-B in fig. 5.

Fig. 7 is a front view of the joint body of the present invention.

Reference is made to the accompanying drawings in which: 1-joint body, 11-connecting part I, 12-connecting part II, 121-groove, 122-sealing ring, 13-fixing part I, 131-ring body I, 132-ring body II, 133-conical surface III, 134-groove body, 135-lug, 2-through hole, 31-limiting part I, 311-fixing part I, 3110-conical surface I, 3111-base part I, 3112-port I, 3113-notch I, 32-limiting part II, 321-fixing part II, 3210-conical surface II, 3211-base part II, 3212-port II, 3213-notch II, 4-male joint, 41-fixing part II, 42-ring body III and 5-notch.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention more clearly understood, the present invention is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.

In the following detailed description of the present invention, certain specific details are set forth in order to provide a better understanding of the present invention. It will be apparent to those skilled in the art that the present invention may be practiced without these specific details.

The ventilation pipe joint assembly shown in fig. 1 to 4 comprises a joint body 1 and a limiting part for fixing the joint body 1, wherein a through hole 2 which is through in the axial direction is formed in the middle of the joint body 1, a first connecting part 11 connected with a ventilation pipe is arranged at one end of the outer side wall of the joint body 1, and a plurality of annular bodies or annular protrusions are arranged on the surface of the first connecting part 11, so that the sealing performance between the first connecting part and the inner wall of the ventilation pipe can be improved, and meanwhile, the ventilation pipe is fixed on the first connecting part 11 through a fastening piece arranged outside the ventilation pipe conveniently.

The other end of the outer side wall of the connector body 1 is provided with a second connecting part 12 connected with the male connector 4, the outer diameter of the second connecting part 12 is slightly smaller than the diameter of the inner cavity of the male connector 4, a groove 121 is formed in the circumferential direction of the second connecting part 12, and a sealing ring 122 is arranged in the annular groove 121, so that when the male connector 4 is inserted into the second connecting part 12, the second connecting part 12 is connected with the male connector 4, the sealing ring 122 can seal between the outer side of the second connecting part 12 and the inner cavity of the male connector 4, and mixed gas leakage can be prevented.

A first fixing part 13 is arranged between the first connecting part 11 and the second connecting part 12, the first fixing part 13 comprises a first annular body 131 and a second annular body 132, the first annular body 131 is close to one side of the first connecting part 11, the second annular body 132 is close to one side of the second connecting part 12, the diameter of the first annular body 131 is larger than that of the second annular body 132, a third conical surface 133 is arranged between the first annular body 131 and the second annular body 132, and the diameter of the third conical surface 133 is gradually reduced from the part of the first annular body 131 to the part of the second annular body 132.

In the utility model, the locating part is provided with locating part one 31 and locating part two 32, and locating part one 31 and locating part two 32 can set up mounting one 311 in the one end of locating part one 31 through laser welding, set up mounting two 321 in the one end of locating part two 32. The first fixing part 311 is provided with a first conical surface 3110, the first base 3111 of the first conical surface 3110 and the end part of the first limiting part 31 are of an integral structure, and the diameter of the first conical surface 3110 is gradually reduced from the first base 3111 to the first port 3112; the second fixing member 321 is a second tapered surface 3210, the second base 3211 of the second tapered surface 3210 and the end of the second stopper 32 are integrated, and the diameter of the second tapered surface 3210 decreases gradually from the second base 3211 to the second port 3212.

As shown in fig. 4, when the connecting portion two 12 of the joint body 1 is inserted into the limiting member one 31 from the limiting member one 31, i.e., from right to left as shown in fig. 4, the connecting portion two 12 and the ring body two 132 pass through the port two 3212 in sequence, and when the ring body two 132 completely passes through the port two 3212, the tapered surface three 133 is engaged with the tapered surface one 3110, so that the fixing portion one 311 is engaged with the fixing portion one 13, i.e., the fixing portion one 311 is engaged between the ring body one 131 and the ring body two 132, and the joint body 1 is fixed on the limiting member one 31, thereby preventing the joint body 1 from being disengaged from the limiting member one 31.

As shown in fig. 4, the second fixing portion 41 is provided on the outer side wall of the male connector 4, the third annular body 42 is provided on the second fixing portion 41, and the diameter of the third annular body 42 is larger than the diameter of the second port 3212. The second fixing element 321 is matched with the second fixing element 41, so that when the male connector 4 is inserted into the second limiting element 32 from left to right, the third annular body 42 passes through the second port 3212 of the second limiting element 32 and is clamped on the left end face of the third annular body 42, and thus the second fixing element 321 plays a role in positioning and fixing the second fixing element 41, so that the male connector 4 is fixed in the second limiting element 32 and cannot be pulled out any more.

As shown in fig. 4, in the present invention, the first fixing element 311 is disposed opposite to the second fixing element 321, that is, the first port 3112 of the first fixing element 311 is disposed opposite to the second port 3212 of the second fixing element 321, and this manner is set to enable the male connector 4 and the connector body 1 to be inserted into the limiting element from opposite directions from two sides of the limiting element at the same time, so as to be fixed to the limiting element. Traditional mode need cut the locating part when the breakout body 1, demolishs the breakout body 1 and ventilation pipe simultaneously, can cause the damage of breakout body 1 and ventilation pipe like this, causes the material extravagant, if the ventilation pipe damages, still need change the ventilation pipe. Because the conventional joint body 1 is inserted into the stopper from the insertion direction of the male joint 4 in the same direction as the joint body 1 and the male joint 4 are connected, the joint body 1 passes through the stopper from one side and then passes through the stopper from the other side to be reconnected to the vent pipe. The fitting body 1 and vent tube must be removed for installation.

And in the utility model discloses in, because port one 3112 sets up with port two 3212 relatively, connect body 1 and male joint 4 can insert simultaneously from the both sides of locating part, male joint 4 inserts in the locating part from the left side of locating part promptly, connect body 1 to insert in the locating part from the right side of locating part, like this, during the change, connect body 1 just can not need to dismantle from the ventilation pipe, conveniently change like this, also can save the material, reduce the loss of material, can improve the installation effectiveness.

As shown in fig. 4-7, the diameter of ring body two 132 is larger than the diameter of port one 3112; the first notch 3113 is provided on the first tapered surface 3110 along the first tapered surface 3110, and the first notch 3113 is provided at 2 to 10, so that when the joint body 1 is inserted into the first limiting member 31 from right to left, and the second ring body 132 passes through the first port 3112, the first port 3112 is expanded due to the first notch 3113, and the first port 3112 returns to its original shape after the second ring body 132 passes through the first port 3112, so that the first tapered surface 3110 is engaged between the first ring body 131 and the second ring body 132, and the first tapered surface 3110 is engaged with the third tapered surface 133, so that the joint body 1 is fixed to the first limiting member 31.

A second notch 3213 is formed in the second tapered surface 3210 of the second fixing element 321 along the second tapered surface 3210, and 2 to 10 notches 3213 are formed. In this way, when the male connector 4 is inserted into the second stopper 32 from left to right and the annular body three 42 passes through the second port 3212, the second port 3212 expands due to the presence of the second notch 3213, and after the annular body three 42 passes through the second port 3212, the second port 3212 returns to its original shape, so that the tapered surface two 3210 engages with the left end surface of the annular body three 42 due to the diameter of the annular body three 42 being larger than the diameter of the second port 3212, whereby the male connector 4 is fixed to the second stopper 32, and the male connector 4 is prevented from being pulled out of the second stopper 32, thereby fixing the male connector 4.

As shown in fig. 5 to 7, a rotation stopping member is disposed between the first limiting member 31 and the second annular member 132, the rotation stopping member includes a protrusion 135 disposed on the first annular member 131 and a groove 134 disposed on the first limiting member 31, the protrusion 135 is disposed on the first annular member 131 in a circumferential direction, the groove 134 is also disposed on the first limiting member 31 in the circumferential direction, and the protrusion 135 is engaged with the groove 134, so that when the connector body 1 is inserted into the first limiting member 31 from the right, the protrusion 135 is engaged in the groove 134, and the connector body 1 is prevented from rotating relative to the first limiting member 31, and further plays a role in fixing.

As shown in fig. 1 and 2, 1 to 2 recessed notches 5 are formed in the surface of the limiting member, and if the limiting member needs to be replaced, the limiting member can be cut off by inserting a cutter into the recessed notches 5 during disassembly, so that the disassembly and the assembly are convenient.

When the utility model is used, the first limiting part 31 and the second limiting part 32 are welded together by a laser welding method; then connecting the joint body 1 with the ventilation pipe and fixing by using a fixing piece; then, the seal ring 122 is sleeved on the joint body 1, and the male joint 4 is inserted into the second limiting piece 32, so that the male joint 4 and the ventilation pipe can be quickly connected together. When the sealing ring 122 needs to be replaced or other repairs are carried out, the limiting part, the male joint 4 and the joint body 1 can be separated as long as the limiting part is cut off, at this time, the limiting part is replaced as long as the sealing ring 122 is replaced, the male joint 4 and the joint body 1 are relatively inserted into the limiting part, connection between the joint body 1 and the ventilation pipe does not need to be disassembled, therefore, the working efficiency can be improved, and materials can be saved.

The embodiments of the present invention have been described in detail with reference to the drawings, but the present invention is not limited to the above embodiments, and those skilled in the art can make modifications and improvements without departing from the scope of the present invention.

Claims (10)

1. The utility model provides a ventilation pipe joint closes piece, includes the locating part that connects body (1) and fixed joint body (1) in the middle of be provided with through-hole (2) that the axial direction link up, be provided with connecting portion one (11) of being connected with the ventilation pipe in the one end of the lateral wall that connects body (1), be provided with connecting portion two (12) of being connected with male joint (4) at the other end that connects body (1) lateral wall, its characterized in that: the limiting part comprises a first limiting part (31) and a second limiting part (32), a first fixing part (13) is arranged between a first connecting part (11) and a second connecting part (12), a first fixing part (311) is arranged on the first limiting part (31), a second fixing part (321) is arranged on the second limiting part (32), the first fixing part (311) is matched with the first fixing part (13), a second fixing part (41) is arranged on the outer side wall of the male connector (4), the second fixing part (321) is matched with the second fixing part (41), and the first fixing part (311) and the second fixing part (321) are arranged oppositely.

2. A vent fitting according to claim 1, wherein: the first fixing piece (311) is set to be a first conical surface (3110), the first base (3111) of the first conical surface (3110) and the end part of the first limiting piece (31) are of an integral structure, the first conical surface (3110) gradually reduces in diameter from the first base (3111) to the first port (3112), the second fixing piece (321) is set to be a second conical surface (3210), the second base (3211) of the second conical surface (3210) and the end part of the second limiting piece (32) are of an integral structure, and the second conical surface (3210) gradually reduces in diameter from the second base (3211) to the second port (3212).

3. A vent fitting according to claim 2, wherein: the port one (3112) and the port two (3212) are arranged oppositely.

4. A vent fitting according to claim 3, wherein: the first fixing part (13) comprises a first annular body (131) and a second annular body (132), the diameter of the first annular body (131) is larger than that of the second annular body (132), a third conical surface (133) is arranged between the first annular body (131) and the second annular body (132), and the third conical surface (133) is matched with the first conical surface (3110).

5. The air duct joint assembly of claim 4, wherein: the diameter of ring two (132) is greater than the diameter of port one (3112).

6. An air pipe joint assembly according to claim 5, wherein: and a first notch (3113) is arranged on the first conical surface (3110) along the first conical surface (3110), and the number of the first notches (3113) is 2 to 10.

7. A vent fitting according to claim 2, wherein: the second fixing part (41) is provided with a third annular body (42), and the diameter of the third annular body (42) is larger than that of the second port (3212).

8. The air duct joint assembly of claim 7, wherein: and a second notch (3213) is arranged on the second conical surface (3210) of the second fixing element (321) along the direction of the second conical surface (3210), and 2 to 10 notches (3213) are arranged.

9. The air duct joint assembly of claim 4, wherein: and a rotation stopping component is arranged between the first limiting piece (31) and the second annular body (132), the rotation stopping component comprises a convex block (135) arranged on the first annular body (131) and a groove body (134) arranged on the first limiting piece (31), and the convex block (135) is matched with the groove body (134).

10. A vent fitting according to claim 1, wherein: a groove (121) is formed in the second connecting part (12), and a sealing ring (122) is arranged in the groove (121).

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