CN2374723Y

CN2374723Y - Improved structure of mechanical union joint

Info

Publication number: CN2374723Y
Application number: CN 99226633
Authority: CN
Inventors: 黄鸿图
Original assignee: Individual
Current assignee: Individual
Priority date: 1999-05-14
Filing date: 1999-05-14
Publication date: 2000-04-19
Anticipated expiration: 2009-05-14

Abstract

The utility model relates to an improved structure of a mechanical pipe joint, which comprises a rubber gasket, a first embedding force block, a second embedding force block, a locking screw, and a screw cap. The utility model is characterized in that the first embedding force block can be inserted in a star-shaped groove leaf of the second embedding force block by means of a lug and can be in the state of movable expansion. The screw can be matched with an impendence gasket, and can be positioned on the second embedding force block in advance. The screw cap can also be locked above the screw first. Assembly operation can be carried out conveniently and quickly. In addition, one side of an annular groove of the second embedding force block is provided with a guide block which is raised on a connecting block. The opposite position of an annular groove of the first embedding force block forms a concave part which is used for the guide block to be sleeved in, which leads the second embedding force block and the first embedding force block not to clamp the rubber gasket when the second embedding force block and the first embedding force block are embedded and sleeved.

Description

The improvement structure of mechanical pipe coupling

The utility model relates to a kind of improvement structure of mechanical pipe coupling.

The main system of the mechanical tube line structure of commonly using at present (as shown in Figure 1 and Figure 2) includes first embedding and compels that piece 81, second embedding are compeled piece 82, two groups of

screws

83,84,

nut

85,86 and rubber washers 87 are formed, and has following shortcoming through looking into it:

Though 1, during the assembly operation be the side 891 that the side 881 that earlier rubber washer 87 is nested in a body 88 is nested in another body 89 again, but first embedding compel piece 81, second embedding compel piece 82 respectively will be nested with rubber washer 87 again respectively mat two-

screw

83,84 be arranged in

mat nut

85,86 lockings respectively again of its both sides, therefore quite trouble is gone up in operation.

2,, therefore, when first embedding is compeled piece 81 and second embedding and compeled piece 82 nested back desire locking and positioning, sometimes can clip to the situation of part rubber washer 87 and influence carrying out smoothly of its assembly operation because rubber washer 87 is not a rigid body.

Inferior looking into, the mechanical pipe coupling structure (as shown in Figure 3) that another is commonly used, it easily grips the purpose that makes things convenient for assembly in order to reach the staff, just piece 91 is compeled in second embedding and be processed to form pivot connected slot 911, and this pivot connected slot 911 has pivoted hole 9111 so that screw 991 to be provided, the pivot joint block 921 that piece 92 is compeled in the nut 992 and first embedding articulates, therefore second embedding is compeled piece 91 and first embedding to compel piece 92 is to be to articulate the expansible state and can be convenient to assembly and operate, therefore, can improve aforementioned first shortcoming commonly using product, but still have aforementioned second shortcoming, and since this second embedding compel that the pivot joint block 921 of the pivot connected slot 911 of piece 91 and pivoted hole 91111 thereof and the urgent piece 92 of first embedding and pivoted hole 92111 thereof all must process in addition can not die cast, therefore, increase substantially cost, reduce external competitiveness relatively.

The purpose of this real model utility is the shortcoming that overcomes prior art, and a kind of improvement structure of mechanical pipe coupling is provided, can carry out smoothly when making it to carry out assembly operation and assembly operation quickly and easily, and the raising external competitiveness that can reduce cost.

The utility model is achieved in that it includes: the rubber washer for the side that is nested in another desire linking body behind the side that is nested in desire linking body again with annular concave ditch; Piece is compeled in first embedding that slightly is the semi-ring body, and its inboard has annular groove can be for nested with one of rubber washer side, and the one side extends the linking piece of short slot in the tool, and this linkings piece and tool axial slots can supply wearing of screw; Piece is compeled in second embedding that slightly is the semi-ring body, and its inboard has annular groove can be for nested with the opposite side of rubber washer, and the one side extends the linking piece of short slot in the tool, and this linking piece also has axial slots, and its opposite side then has pivot joint block; And provide locking screw and the nut that piece locking binding is compeled in piece and second embedding compeled in first embedding, be characterized in: the opposite side of the urgent piece of this first embedding extends a projection and is movable state for the shape slotted eye that inserts the urgent default pivot joint block of piece of second embedding, and this first embedding is compeled one of piece side linking piece and is offered the side channel hole that communicates with its axial slots in addition, and the width in this side channel hole is greater than the diameter of screw;

The axial slots that the side linking piece of piece is compeled in this second embedding can supply aforementioned screw stretch into the urgent packing ring of elasticity of the some calvus of the nested tool in back, make screw can not break away from this axial slots, but the state that is movable skew, and on the spiro tooth part of this screw, can revolve lock one nut earlier, in addition the opposite side pivot joint block of compeling piece in this second embedding then have shape slotted eye can for first embedding compel piece projection insertion and be can the pivot joint activity state.

Further, the side that the annular groove of piece is compeled in this second embedding has the guiding block that protrudes from the linking piece, and the relative position of the annular groove of the urgent piece of first embedding also is formed with a recess that can supply aforementioned guiding block to be inserted in, make urgent piece of this second embedding and the urgent block nesting of first embedding cover Shi Buhui and clip to rubber washer, thereby guarantee carrying out smoothly of fit operation.

Positive progressive effect of the present utility model will be described in detail in conjunction with the embodiment who provides later.

Accompanying drawing of the present utility model is simply described as follows:

Fig. 1 is a three-dimensional exploded view of commonly using product.

Fig. 2 is a stereogram of commonly using product.

Fig. 3 is another three-dimensional exploded view of commonly using product.

Fig. 4 is the utility model embodiment's a perspective exploded view.

Fig. 5 is the utility model embodiment's a user mode schematic perspective view.

Fig. 6 is wherein urgent piece of first embedding and the urgent piece open configuration floor map of second embedding of the utility model embodiment.

Fig. 7 is wherein urgent piece of first embedding and the urgent piece assembled state floor map of second embedding of the utility model embodiment.

Fig. 8 is the floor map after the utility model embodiment assembling is finished.

Fig. 9 is wherein another angle schematic perspective view of the urgent piece of first embedding of the utility model embodiment.

The number in the figure explanation:

1-rubber washer 11-chase

12,2-first embedding in 13-both sides chases after piece

21,31-annular groove 211-recess

22,32-is connected short slot in piece 220, the 320-

221,321-axial slots 23-projection

222-side channel hole 4,5-body

41, piece is compeled in 51-side 3-second embedding

322-guiding block 33-pivot joint block

331- shape slotted eye 6-screw

The urgent packing ring 601-of 60-calvus

61-spiro tooth part 7-nut

Below we provide better embodiment of the utility model according to Fig. 4～Fig. 9.

As Fig. 4～shown in Figure 9, the improvement structure of a kind of mechanical pipe coupling of the utility model includes:

Rubber washer 1, cording are nested in the side 51 that another desire is connected body 5 after having annular concave ditch 11 for the side 41 that is nested in desire linking body 4 again;

Piece 2 is compeled in first embedding, slightly is the semi-ring body, and the inboard has annular groove 21 can be for nested with a side 12 of rubber washer 1, and the one side extends the linking piece 22 of short slot 220 in the tool, and this linkings piece 22 and tool axial slots 221 can supply wearing of screw 6;

Piece 3 is compeled in second embedding, slightly be the semi-ring body, the inboard has annular groove 31 can be for nested with the opposite side 13 of rubber washer 1, and the one side extends the linking piece 32 of short slot 320 in the tool, this linking piece 32 also has axial slots 321, and its opposite side then has pivot joint block 33;

Locking screw 6 and nut 7 are to provide piece 2 and the urgent piece 3 locking bindings of second embedding are compeled in first embedding;

Its main characteristics is:

Piece 2 is compeled in this first embedding, be that opposite side extends a projection 23 and is movable state for inserting the shape slotted eye 331 that second embedding compels piece 3 default pivot joint blocks 33, and the side linking piece 22 that piece 2 is compeled in this first embedding offers the side channel hole 222 that communicates with its axial slots 221 in addition, and the width in this side channel hole 222 is greater than the diameter of screw 6;

Piece 3 is compeled in this second embedding, the axial slots 321 of the linking piece 32 of one side can stretch into the urgent packing ring 60 of elasticity of the some calvus 601 of the nested tool in back for aforementioned screw 6, make screw 6 can not break away from this axial slots 321 but can have the state of movable skew, and on the spiro tooth part 61 of screw 6, can revolve lock one nut 7 earlier, in addition 33 of the opposite side pivot joint blocks of compeling piece 3 in this second embedding have shape slotted eye 331 holes can for first embedding chase after piece 2 projection 23 insertion and be can the pivot joint activity state;

So by aforementioned feature, when desiring assembly, the projection 23 of compeling piece 2 because of first embedding is that the shape slotted eye 331 that inserts the urgent piece 3 of second embedding is mobilizable open configuration (with reference to figure 6, Fig. 7), thereby, can be directly with aforementioned two bodys 4,5 nested rubber washer 1 nested covering (with reference to figure 7), the side channel hole 222 of compeling piece 2 via first embedding with mobilizable screw 6 tops that can again second embedding be compeled piece 3 location enters its axial slots 221 (with reference to figure 8), again nut 7 is screwed the purpose that can make things convenient for and reach assembly apace.

Moreover, the improvement structure of aforementioned a kind of mechanical pipe coupling, wherein a side of the annular groove 31 of the urgent piece 3 of this second embedding has the guiding block 322 that protrudes from linking piece 32, and the relative position of the annular groove 21 of the urgent piece 2 of first embedding also is formed with a recess 211 (in addition with reference to figure 9) that can supply aforementioned guiding block 322 to be inserted in, make this first embedding compel piece 2 and clip to rubber washer 1 (because of the non-rigid body of rubber washer), thereby guaranteed carrying out smoothly of fit operation with the urgent piece 3 nested Shi Buhui of covering of second embedding.

In sum, the utility model can be concluded and be had following enhancement effect:

1, can be fashionable with rubber washer 1 nested groups by urgent piece 3 of second embedding and the urgent piece 2 of first embedding, but the situation that mat guiding block 322 avoids clamping part rubber washer 1 with the setting of recess 211 like this, has been guaranteed carrying out smoothly of assembly operation;

2, but the shape slotted eye 331 of the urgent piece 3 of its projection 23 insertions, second embedding of urgent piece 2 mats of first embedding is movable open configuration, and screw 6 can cooperate urgent packing ring 60 to be positioned the urgent piece 3 of second embedding in advance, nut 7 also can be locked in the top of screw 6 in advance, thereby, can carry out the assembly operation quickly and easily;

3, because the tolerance dimension of the shape slotted eye 331 of the projection 23 of the urgent piece 2 of first embedding and the urgent piece 3 of second embedding is big and simple in structure, therefore, directly casting can reduce cost relatively, has improved external competitiveness.

Claims

1, a kind of improvement structure of mechanical pipe coupling includes:

Piece is compeled in first, second embedding that have the rubber washer of annular concave ditch, slightly is the semi-ring body and locking links locking screw and the nut that piece is compeled in this first, second embedding:

Piece is compeled in this first embedding, and the inboard has annular groove, and it can be nested with one of rubber washer side, and the one side extends the linking piece of short slot in the tool, and this linkings piece and tool axially can supply the slotted eye that wears of screw;

This second embedding is compeled the piece inboard and is had annular groove, and its opposite side with rubber washer is nested, and the one side extends the linking piece of the interior short slot of a tool, and this linking piece also has axial slots, and its opposite side then has pivot joint block,

It is characterized in that:

The opposite side that piece is compeled in this first embedding has extended a projection, it inserts the shape slotted eye that the default pivot joint block of piece is compeled in second embedding, and be movable state, and one of urgent piece of this first embedding side linking piece offers the side channel hole that communicates with its axial slots in addition, the width in this side channel hole is greater than the diameter of screw;

This screw stretches into this second embedding and compels the urgent packing ring of elasticity that piece one side is connected the some calvus of a nested tool after the axial slots of piece, and be the state of movable skew, and above the spiro tooth part of this screw, revolve lock one nut earlier, the opposite side pivot joint block of compeling piece in this second embedding is established shape slotted eye in addition, the projection that piece is compeled in this first embedding insert this shape slotted eye and be can the pivot joint activity state.

2, the improvement structure of mechanical pipe coupling according to claim 1, a side that it is characterized in that the annular groove of the urgent piece of this second embedding is established the guiding block that protrudes from the linking piece, also is formed with a recess that can supply this guiding block to be inserted in the relative position of compeling the annular groove of piece in this first embedding.