CN218439518U - Hoop lining plate, anti-leakage hoop and preparation mold thereof - Google Patents

Abstract

The utility model discloses a clamp welt and prevent leaking clamp and preparation mould thereof, clamp welt are arcuation channel plate, including the lateral wall that diapire and bisymmetry set up, one side and the diapire of lateral wall are connected, form V type groove between both sides wall and the diapire, and the opposite side of diapire outwards extends has the extension wall, and on the lateral wall and/or the junction of lateral wall and diapire is provided with a plurality of convex closure structures, the convex closure structure that a lateral wall and the junction of diapire set up and the convex closure structure one-to-one that the junction of another lateral wall and diapire set up. The application also discloses a preparation mould that includes the anti-leakage clamp of above-mentioned welt and preparation welt. The hoop lining plate is provided with the plurality of convex hull structures, so that the strength of the hoop lining plate can be enhanced, the deformation is reduced, the limitation of the lining plate on material selection can be reduced, the cost control is facilitated, and the plan of reducing the cost of a customer is met; the edge of the lining plate is extended with an extension wall, so that the deformation of the side wall can be reduced, and the sealing performance of the lining plate is improved.

Description

Hoop lining plate, anti-leakage hoop and preparation mold thereof

Technical Field

The utility model relates to a clamp technical field especially relates to a mainly used diesel engine exhaust emission system's clamp welt and prevent leaking clamp and preparation mould thereof.

Background

Nowadays, with the push of the national six-emission standard, the corresponding regulatory requirements on the emission standard of the tail gas are also met. In the exhaust emission system of the diesel engine, the clamp 6 is mainly used for tightly connecting the DPF particulate trap 7 with each of the pipes 8, as shown in fig. 1. The clamp 6 is used as one of the fastening components, once the fastening is failed, air leakage can be generated between the DPF particle trap 7 and the pipeline 8, the exhaust emission can be influenced by the air leakage, and the exhaust emission can not reach the emission standard, so that the emission requirement can not be met.

The clamp 6 mainly comprises a strap, a lining plate and a fastening component. In the conventional hoop 6, the material selection of the strap and the lining plate is generally 304 stainless steel, and although the stainless steel of the type can meet the requirement of high temperature resistance, the cost is high, and the requirement of reducing the cost of a customer is not favorably met. And the materials with lower price such as 441 stainless steel have performance requirements such as high temperature resistance, but the materials are easy to deform and have poor rebound resilience, and in the assembling process, the joint of the lining plate and the DPF particle catcher 7 or each pipeline 8 is deformed in a laminating manner, so that the phenomena such as air leakage and the like can occur, and the assembling efficiency is reduced.

Therefore, in combination with the above existing technical problems, new innovations need to be proposed.

SUMMERY OF THE UTILITY MODEL

The utility model aims to solve the defects in the prior art, and provides a novel clamp lining plate, which is characterized in that a plurality of convex hull structures are arranged on the clamp lining plate to enhance the strength of the clamp lining plate and reduce the deformation, thereby reducing the limitation of the clamp lining plate on material selection, being beneficial to controlling the cost and meeting the customer cost reduction plan; the edge of the hoop lining plate is extended with an extension wall, so that the deformation of the side wall of the lining plate is further reduced, and the sealing performance of the hoop lining plate is improved. Furthermore, the utility model discloses still provide a mould that contains the leak-proof clamp of above-mentioned clamp welt and prepare above-mentioned clamp welt.

For realizing the utility model purpose, the utility model provides a clamp welt, its trough plate for being the arcuation, the clamp welt includes the lateral wall that diapire and two symmetries set up, one side of lateral wall with the diapire is connected, two the lateral wall with form V type groove between the diapire, the opposite side of lateral wall outwards extends has the extension wall, on the lateral wall and/or the lateral wall with the junction of diapire is provided with a plurality of convex closure structure, the convex closure structure certainly the internal face of clamp welt outwards protrudes, a lateral wall with the convex closure structure and another lateral wall that the diapire junction set up with the convex closure structure one-to-one of diapire junction.

Furthermore, the convex hull structure arranged at the joint of the side wall and the bottom wall is in a convex point shape.

Further, set up on the lateral wall the convex closure structure is the boss form, a plurality of the convex closure structure is followed the length direction interval distribution of clamp welt.

Further, the side wall and the bottom wall are in smooth transition.

Further, the extension wall and the side wall are in smooth transition.

Further, the clamp lining plate is made of 441 stainless steel.

The utility model also provides a prevent leaking clamp, it includes the foretell clamp welt of strap and a plurality of, the both ends of strap can pass through fastening component fastening connection, the diapire of clamp welt with the interior wall connection of strap, a plurality of the interval sets up between the clamp welt.

Further, the strap is 441 stainless steel.

The utility model also provides a preparation mould for preparing the clamp lining plate, which comprises a male mould and a female mould, wherein one side of the male mould is an outer convex arc surface, a convex strip structure matched with the shape of the inner groove of the clamp lining plate is arranged on the outer convex arc surface, and a plurality of convex structures matched with the shape of the convex strip structure are arranged on the convex strip structure; one side of the female die is an inner concave arc-shaped surface, a groove matched with the shape of the raised line structure is formed in the inner concave arc-shaped surface, a plurality of inner concave structures are arranged in the groove, one side of the outer convex arc-shaped surface of the male die is in press fit with one side of the inner concave arc-shaped surface of the female die, and the convex structures are in one-to-one correspondence with the inner concave structures.

Compared with the prior art, the application has at least one or more of the following advantages:

the hoop lining plate is provided with the plurality of convex hull structures to enhance the strength of the hoop lining plate and reduce deformation, so that the limitation of the hoop lining plate on material selection is reduced, for example, 441 stainless steel can be adopted, the price is lower while the performance requirements such as high temperature resistance and the like are met, and the requirement of customers on cost reduction is better met; the convex hull structure can be arranged at the joint of the side wall and the bottom wall, so that the reaction force of the convex hull structure on the clamp lining plate can be ensured to compensate the outward expansion deformation of the two side walls under the stress state, and the clamp lining plate can be tightly buckled on the outer wall of the DPF particle trap or the outer wall of a pipeline; two groups of convex hull structures at the joint of the two side walls and the bottom wall are symmetrically arranged, compared with staggered arrangement, the symmetrical arrangement is under the action of dead-against symmetrical load, all counter-force, internal force, deformation and displacement are in positive symmetry, and the deformation caused by stress is difficult to occur, so that the possibility of expansion deformation caused by nonuniform stress difference at a local point due to staggered arrangement left and right distribution is avoided; the convex hull structure can be arranged on the side wall, so that the strength of the joint of the clamp lining plate and the DPF particle trap or a pipeline can be increased, the deformation of the clamp lining plate can be reduced, in addition, the contact surface of the clamp lining plate and the outer wall of the DPF particle trap or the outer wall of the pipeline can be reduced due to the concave surface of the inner wall of the side wall of the clamp lining plate, and the blocked friction force can be effectively reduced in the tightening process of the clamp, so that the bonding force of the clamp lining plate and the outer wall of the DPF particle trap or the outer wall of the pipeline can be increased, and the air leakage problem can be avoided;

according to the anti-leakage clamp, the clamp lining plate is adopted, so that the DPF particle catcher and a pipeline are connected more tightly and more firmly, and the risk of air leakage is effectively reduced;

the utility model provides a preparation mould, its simple structure, it is with low costs, can be convenient preparation above-mentioned clamp welt.

Drawings

FIG. 1 is a schematic view of a DPF particulate trap and a pipe fastened together with a clamp;

FIG. 2 is a schematic view of a leak-proof clamp according to an embodiment of the present invention;

FIG. 3 is a schematic view of a clamp liner provided in an embodiment of the present application;

FIG. 4 is a schematic view of a half-section of a collar liner at a convex hull structure according to an embodiment of the present disclosure;

fig. 5 to 7 are schematic structural views of another clip liner provided in accordance with an embodiment of the present invention;

FIG. 8 is a schematic view, partially in cross section, of a clamp liner plate fastened to a DPF particulate trap and a pipe according to an embodiment of the present disclosure;

fig. 9 is a schematic structural diagram of a mold according to the second embodiment of the present application;

FIG. 10 is a schematic view of another alternative mold manufacturing configuration provided in example two of the present application;

fig. 11 is a schematic front view of a male die provided in the second embodiment of the present application;

FIG. 12 is a schematic cross-sectional view of FIG. 11 at position A;

FIG. 13 is an enlarged schematic view of FIG. 12 at I;

FIG. 14 is a schematic front view of another male mold provided in the second embodiment of the present application;

FIG. 15 is a cross-sectional view of the structure of FIG. 14 at position B;

fig. 16 is a schematic side view of another male mold provided in the second embodiment of the present application.

The structure comprises a clamp lining plate 1, a bottom wall 11, a side wall 12, an extending wall 121, a convex hull structure 13, a strap 2, a fastening component 3, a T-shaped bolt 31, a cross rod part 311, a screw rod part 312, a sleeve pipe 32, a cross branch part 321, a main pipe part 322, a nut 33, a convex die 4, a convex strip structure 41, a convex structure 411 and a concave die 5. 51-half mould, 511-chamfer, 512-concave structure, 52-top block, 6-hoop, 7-DPF particle catcher and 8-pipeline.

Detailed Description

To further illustrate the technical means and effects of the present invention adopted to achieve the intended purpose of the present invention, the following detailed description is given to the embodiments, structures, features and effects according to the present invention with reference to the accompanying drawings and preferred embodiments.

Example one

This embodiment provides a prevent leaking clamp, it is mainly by strap 2 and a plurality of clamp welt 1, the both ends of strap 2 can be through fastening component 3 fastening connection, clamp welt 1 with fixed connection between the strap 2.

As shown in fig. 2, the fastening assembly 3 of the leak-proof clamp is schematically shown as a T-bolt 31, a T-sleeve 32 and a nut 33. The strap 2 is bent into a C shape, a head of one end of the strap 2 is sleeved on the cross rod portion 311 of the T-shaped bolt 31, and a first notch is formed in a position of the strap 2 corresponding to the screw portion 312 of the T-shaped bolt 31 for the screw portion 312 of the T-shaped bolt 31 to pass through; the other end of the strap 2 is coiled and sleeved on the transverse branch portion 321 of the T-shaped sleeve 32, and a second notch is formed in the position of the strap 2 corresponding to the main pipe portion 322 of the T-shaped sleeve 32, so that the main pipe portion 322 of the T-shaped sleeve 32 can pass through the second notch. And the head part of the band 2 is fixedly connected with the main part of the band 2, such as by welding through spot welding, so that the T-shaped bolt 31 and the T-shaped sleeve 32 are fixed. In specific implementation, the screw portion 312 of the T-bolt 31 is inserted through the main tube portion 322 of the T-shaped sleeve 32, and then the screw portion 312 is tightened by the nut 33.

The band liner plates 1 are disposed on the inner wall of the band 2, as shown in fig. 2, five band liner plates 1 are schematically illustrated as being disposed at intervals, but in the specific implementation, the number of the band liner plates 1 is not limited to five, and may be any number. The band 2 and the band liner 1 are preferably made of stainless steel, and more preferably made of 441 stainless steel.

As shown in fig. 3 or 5, the band liner 1 is an arc-shaped trough plate, which includes a bottom wall 11 and two symmetrically disposed side walls 12. One side of the side wall 12 is connected with the bottom wall 11, and a V-shaped groove is formed between the two side walls 12 and the bottom wall 11, that is, the cross section of the hoop liner plate 1 is in a flat-bottom V shape, as shown in fig. 4 or fig. 6. In practice, the bottom wall 11 of the band liner 1 is fixedly connected to the inner wall of the band 2, for example by spot welding. After the nuts 33 are tightened, the band liner plates 1 are in a ring shape and open inwards under the action of the band 2. When two parts to be locked are locked, the clamp lining plate 1 is buckled at the flange joint of the two parts to be locked, and the two parts to be locked are restrained, such as locking between the DPF particulate filter 7 and the pipeline 8 as shown in fig. 8, and after the nut 33 is screwed, the clamp lining plate 1 firmly fastens the flange at the joint of the DPF particulate filter 7 and the flange at the joint of the pipeline 8, so that the DPF particulate filter 7 and the pipeline 8 are tightly connected.

The other side of the side wall 12 of the clamp liner 1, i.e. the side away from the bottom wall 11, is extended with an extension wall 121, as shown in fig. 3 to 8, so that the clamp liner 1 can be better fastened to the outer wall of the component to be locked, i.e. the outer wall of the DPF particulate trap 7 and the outer wall of the pipe 8. In addition, the conventional band liner 1 is generally provided with no extension wall 121 on the side wall 12, and therefore, the end portion of the side wall 12 is a free end, and may be slightly deformed by hydraulic pressure or other external force during hydroforming, thereby reducing a locking effect, and further affecting sealability between the DPF particulate trap 7 and the pipe 8. By extending the extension wall 121 from the side wall 12, the thickness is increased, and thus, deformation of the side wall 12 can be reduced, thereby improving sealing effects between the DPF particulate trap 7 and the duct 8.

Furthermore, the side wall 12 and the bottom wall 11 are smoothly transited; the extension wall 121 and the side wall 12 are in smooth transition. Can guarantee like this clamp welt 1 can be better with DPF particle trap 7's outer wall with the laminating of pipeline 8's outer wall, it is right further to improve DPF particle trap 7 with pipeline 8's sealed effect.

In this embodiment, a plurality of convex hull structures 13 are disposed on the side wall 12 and/or at the connection between the side wall 12 and the bottom wall 11, and the convex hull structures 13 protrude outwards from the inner wall surface of the band liner 1.

As shown in fig. 3 and 4, a convex hull structure 13 is schematically shown, which is in a convex point shape, and the height of the convex hull structure is not higher than the bottom wall 1, so as to ensure that the bottom wall 1 can be tightly attached to the inner wall of the belt 2 when assembled. In the hoop liner 1 shown in fig. 3, the convex hull structure 13 is an independent structure, that is, the convex hull surface of the convex hull structure 13 does not extend to the bottom wall 1; in contrast, the collar insert 1 shown in fig. 4 has a convex surface of the convex structure 13 extending to the bottom wall 1.

Further, the convex hull structures 13 arranged at the joint of one side wall 12 and the bottom wall 11 correspond to the convex hull structures 13 arranged at the joint of the other side wall 12 and the bottom wall 11 one by one, that is, two groups of convex hull structures 13 at the joints of the two side walls 12 and the bottom wall 11 are symmetrically arranged. The symmetrical arrangement is adopted, and compared with the staggered arrangement, the symmetrical arrangement is under the action of dead weight, all counter force, internal force, deformation and displacement are in dead symmetry, and are not easy to deform under stress, and the staggered arrangement left and right distribution has the problem that the stress is not uniform at a certain local point, so that the expansion deformation possibility exists. The traditional clamp lining plate 1 is generally of a flat structure without a reinforcing structure for supporting, and the two side walls 12 are expanded outwards due to the influence of moment stress to cause deformation, so that the clamp lining plate is buckled on the outer wall of the DPF particle catcher 7 or the outer wall of the pipeline 8 to cause air leakage due to the existence of gaps. In this embodiment, the connection between the side wall 12 and the bottom wall 11 is provided with the plurality of convex hull structures 13, so that the convex hull structures 13 on the hoop lining board 1 can make the reaction force thereof under the stress state with the same moment, compensate the outward expansion deformation of the two side walls 12, and then tightly buckle the outer wall of the DPF particulate trap 7 or the outer wall of the pipeline 8. Each group schematically shown in fig. 3 is preferably provided with 5 convex hull structures 13 distributed at equal intervals, i.e. the hoop liner 1 is provided with 10 convex hull structures 13.

As shown in fig. 5 to 7, another convex hull structure 13 is schematically shown, in the form of a boss, spaced apart along the length of the clip liner 1 on the side wall 12. Each side wall 12 schematically shown in the drawings is preferably provided with 10 convex hull structures 13, that is, the band liner plate 1 is provided with 20 convex hull structures 13, that is, 10 inner concave surfaces are formed on the inner wall of each side wall 12, and 10 convex hull surfaces are formed on the outer wall. Through set up a plurality of convex closure structure 13 on the lateral wall 12 of clamp welt 1, can increase the joint intensity of clamp welt 1 and DPF particle trap 7 or pipeline 8 reduces the deflection of clamp welt 1. In addition, the interior concave surface of 1 lateral wall 12 inner walls of clamp welt for the contact surface of clamp welt 1 and DPF particle trap 7 outer walls or 8 outer walls of pipeline reduces, therefore screws up the in-process at the clamp, can effectively reduce obstructed frictional force, thereby increases the laminating dynamics of clamp welt 1 and DPF particle trap 7 outer walls or 8 outer walls of pipeline, and then avoids gas leakage problem.

It should be noted that the convex hull structure 13 provided on the band liner 1 may include only one of the above forms, or may include both forms.

Example two

The present embodiment provides a manufacturing mold for manufacturing the band liner 1 described in the first embodiment. As shown in fig. 9 or 10, it comprises a male mold 4 and a female mold 5. One side of the convex die 4 is an outer convex arc-shaped surface, a raised line structure 41 is arranged on the outer convex arc-shaped surface, the raised line structure 41 is matched with the shape of an inner groove of the hoop lining plate 1, namely, the cross section of the raised line structure 41 is trapezoidal, and the small bottom is away from the convex die 4. Two long corners of the convex strip structure 41 are respectively rounded. A plurality of convex structures 411 matched with the convex hull structures 13 in shape are arranged on the convex hull structures 41. And one side of the female die 5 is an inner concave arc-shaped surface, and a groove matched with the raised line structure 41 in shape is arranged on the inner concave arc-shaped surface. As shown in fig. 9 or 10, the female mold 5 preferably used in the drawings is composed of two mold halves 51 and a top block 52, wherein the top block 52 is located between the two mold halves 51. The half mold 51 and the top block 52 are both plate-shaped structures, and one end surface is an inward-concave arc surface. The height of the top block 52 is smaller than that of the half dies 51, when the female die 5 is assembled, the arc-shaped surfaces of the two half dies 51 form the concave arc-shaped surface of the female die 5, and the shorter top block 52 enables a groove to be formed between the two half dies 5. The mold half 51 has a chamfer 511 at the corner of its inner recess. A plurality of concave structures 512 are arranged in the groove, namely a plurality of concave structures 512 are arranged at the chamfer 511 of the half die 51, when the convex arc-shaped surface of the convex die 4 is pressed on the concave arc-shaped surface of the concave die 5, the convex structures 411 correspond to the concave structures 512 one by one.

As shown in fig. 9 or fig. 11 to fig. 13, a convex mold 4 is schematically shown, and a plurality of convex structures 411, such as convex point structures, are respectively arranged at two long corners of the convex strip structure 41. Thus, when a lining material, such as a stainless steel plate, is placed between the male die 4 and the female die 5 and then positioned, the male die 4 and the female die 5 are controlled to be pressed by a hydraulic press, so that the lining material can be punched into a required shape, and the first clamp lining 1 described in the first embodiment is obtained. Under the action of the convex point structure, the joint of the side wall 12 and the bottom wall 11 of the obtained hoop liner plate 1 forms the convex point structure 13. Preferably, the hydraulic machine is an 800T hydraulic machine.

As shown in fig. 10 or 14 to 16, another male mold 4 is schematically shown, wherein a plurality of convex structures 411, such as convex structures, are respectively arranged on two side walls 12 of a convex strip structure 41 and are arranged at intervals along the length direction of the convex strip structure 41. Similarly, after the lining plate material is placed between the male die 4 and the female die 5 and positioned, the lining plate material can be punched into a required shape after the male die 4 and the female die 5 are pressed by using a hydraulic press, and the second clamp lining plate 1 in the first embodiment is obtained. Under the effect of the boss structure, the collar structure 13 will be formed on the side wall 12 of the obtained collar lining plate 1.

As used herein, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, including not only those elements listed, but also other elements not expressly listed.

In this document, the terms front, back, upper and lower are used to define the components in the drawings and the positions of the components relative to each other, and are used for clarity and convenience of the technical solution. It is to be understood that the use of the directional terms should not be taken to limit the scope of the claims.

The features of the embodiments and embodiments described herein above may be combined with each other without conflict.

The above description is only for the preferred embodiment of the present invention, and is not intended to limit the present invention, and any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention should be included within the protection scope of the present invention.

Claims (10)

1. The utility model provides a clamp welt, its is the channel plate that is the arcuation, clamp welt (1) is including lateral wall (12) that diapire (11) and two symmetries set up, one side of lateral wall (12) with diapire (11) are connected, two lateral wall (12) with form V type groove between diapire (11), the outside extension of opposite side of lateral wall (12) has the extension wall, lateral wall (12) go up and/or lateral wall (12) with the junction of diapire (11) is provided with a plurality of convex closure structure (13), convex closure structure (13) certainly the internal face of clamp welt (1) is outside protruding, a lateral wall (12) with convex closure structure (13) and another lateral wall (12) that diapire (11) junction set up with convex closure structure (13) one-to-one of diapire (11) junction setting.

2. Clip liner according to claim 1, wherein the convex hull structure (13) provided at the connection of the side wall (12) and the bottom wall (11) is convex.

3. A clamp liner according to claim 1, wherein the raised ridge formations (13) provided on the side walls (12) are in the form of bosses, a plurality of the raised ridge formations (13) being spaced apart along the length of the clamp liner (1).

4. Clip liner according to claim 1, wherein the transition between the side wall (12) and the bottom wall (11) is smooth.

5. The collar liner as claimed in claim 1, wherein the extension wall (121) and the side wall (12) have a smooth transition therebetween.

6. The clip liner as claimed in claim 1, wherein the clip liner (1) is 441 stainless steel.

7. Clip liner according to claim 1, characterized in that the clip liner (1) is integrally formed.

8. Leak-proof clamp, characterized in that it comprises strap (2) and a plurality of clamp welt (1) as in any one of claims 1-7, the both ends of strap (2) can be through fastening components (3) fastening connection, the diapire (11) of clamp welt (1) with the interior wall connection of strap (2), a plurality of the interval sets up between clamp welt (1).

9. A leak-proof clamp according to claim 8, characterized in that the band (2) is 441 stainless steel.

10. A manufacturing mold for manufacturing a band liner according to any one of claims 1-7, characterized in that it comprises a male mold (4) and a female mold (5),

one side of the male die (4) is an outer convex arc-shaped surface, a convex strip structure (41) matched with the shape of the inner groove of the clamp liner plate (1) is arranged on the outer convex arc-shaped surface, and a plurality of convex structures (411) matched with the shape of the convex hull structure (13) are arranged on the convex strip structure (41);

one side of the female die (5) is an inner concave arc-shaped surface, a groove matched with the shape of the convex strip structure (41) is formed in the inner concave arc-shaped surface, a plurality of inner concave structures (512) are arranged in the groove, one side of the outer convex arc-shaped surface of the male die (4) is pressed on one side of the inner concave arc-shaped surface of the female die (5), and the convex structures (411) are in one-to-one correspondence with the inner concave structures (512).

Images