CN216382827U

CN216382827U - Bolted connection formula clamp

Info

Publication number: CN216382827U
Application number: CN202023030267.5U
Authority: CN
Inventors: 衣小磊; 付海平; 林小山; 阳东; 刘建; 安晓宁; 彭清龙
Original assignee: Ningbo Hongheng Mould Co ltd
Current assignee: Ningbo Hongheng Mould Co ltd
Priority date: 2020-12-16
Filing date: 2020-12-16
Publication date: 2022-04-26
Anticipated expiration: 2030-12-16

Abstract

The utility model discloses a bolt connection type clamp which comprises a circular clamp, a first connecting lug, a second connecting lug, an arc bolt, a steel wool cushion block, a gasket and a locknut, wherein the first connecting lug and the second connecting lug are respectively provided with a first bending point, a second bending point, a third bending point and a fourth bending point; the bolt connection type clamp has the advantages of being good in sealing performance, simple in process and low in cost, can adapt to the use environment above 35NM, and is suitable for being popularized and used.

Description

Bolted connection formula clamp

Technical Field

The utility model belongs to the technical field of clamps, and particularly relates to a bolt connection type clamp.

Background

With the diversification of the design of the exhaust tail pipe of the modern automobile, in order to adapt to different tail pipe designs, the design of the sealing clamp at the joint of the tail pipe is more and more diversified, and the function is more and more specific.

The existing tail pipe sealing hoop has the defects that the joints at the two ends of the hoop have large non-contact areas with tail pipes, if the torque force of the hoop is too large, the tail pipes are extruded and deformed, leakage is easy to occur, the hoop is connected aiming at thin-walled pipes, and no suitable hoop selection is available when the torque force is required to be more than 35 NM.

SUMMERY OF THE UTILITY MODEL

The present invention is directed to a bolt-on clamp to solve the above-mentioned problems of the prior art.

In order to achieve the purpose, the utility model provides the following technical scheme: a bolt connection type clamp comprises a circular clamp, a first connecting lug, a second connecting lug, an arc bolt, a steel wool cushion block, a gasket and a check nut, wherein the first connecting lug and the second connecting lug are positioned at two ends of the circular clamp; the circular hoop, the first connecting lug and the second connecting lug are of an integrated structure, the two ends of the circular hoop are bent to form the first connecting lug and the second connecting lug, reinforcing blocks are welded on the outer sides of transition positions of the circular hoop and the first connecting lug and the second connecting lug, and free ends of the first connecting lug and the second connecting lug are bent inwards; the steel wool cushion block, the cushion block and the gasket are in sliding connection with the arc bolt, and the locknut is in threaded connection with the arc bolt; the screw head part and the cushion block of the arc bolt are both provided with arc surfaces, the arc surface of the screw head part of the arc bolt is contacted with the arc surface of the first connecting lug, and the arc surface of the cushion block is contacted with the arc surface of the second connecting lug;

first engaging lug and second engaging lug all are equipped with first bending point, second bending point, third bending point and fourth bending point, the inner space of first engaging lug and second engaging lug that first bending point, second bending point, third bending point and fourth bending point constitute divide into two compartments, and one of them compartment is the drop shape, and another compartment is circular-arc trapezoidal for the base.

The utility model has the technical effects and advantages that: according to the bolt connection type hoop, the free ends of the first connecting lug and the second connecting lug at the two ends of the circular hoop are bent inwards, so that the acting surface of the circular hoop and a tail pipe can be enlarged, the tail pipe is uniformly stressed along the circumferential surface, the tail pipe is prevented from being stressed and deformed, and the sealing property of the hoop can be effectively improved; the space inside the first connecting lug and the second connecting lug is divided into two independent compartments by four bending points, and the characteristic can increase the structural strength of the first connecting lug and the second connecting lug so as to meet the requirement of thin-wall pipe connection with the torsion requirement of more than 35 NM.

Drawings

FIG. 1 is a schematic structural view of the present invention;

fig. 2 is a schematic diagram of the structure of the present invention in a separated state.

In the figure: 1. a circular hoop; 2. a first connecting lug; 3. a second engaging lug; 4. a circular arc bolt; 5. steel wool cushion blocks; 6. cushion blocks; 7. a gasket; 8. a locknut; 9. a first bend point; 10. a second bending point; 11. a third bending point; 12. a fourth bending point.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

The utility model provides a bolt connection type clamp shown in a figure 1-2, which comprises a circular clamp 1, a first connecting lug 2, a second connecting lug 3, an arc bolt 4, a steel wool cushion block 5, a cushion block 6, a gasket 7 and a locknut 8, wherein the first connecting lug 2 and the second connecting lug 3 are positioned at two ends of the circular clamp 1, the steel wool cushion block 5 is arranged between the first connecting lug 2 and the second connecting lug 3, one sides of the first connecting lug 2 and the second connecting lug 3, which are back to the steel wool cushion block 5, are arc-shaped, and the first connecting lug 2, the second connecting lug 3, the steel wool cushion block 5, the cushion block 6, the gasket 7 and the locknut 8 are all sleeved outside the arc bolt 4; the circular hoop 1, the first connecting lug 2 and the second connecting lug 3 are of an integrated structure, the first connecting lug 2 and the second connecting lug 3 are formed by bending two ends of the circular hoop 1, reinforcing blocks are welded on the outer sides of transition positions of the circular hoop 1 and the first connecting lug 2 as well as the second connecting lug 3, and free ends of the first connecting lug 2 and the second connecting lug 3 are bent inwards; the steel wool cushion block 5, the cushion block 6 and the gasket 7 are in sliding connection with the arc bolt 4, and the locknut 8 is in threaded connection with the arc bolt 4; the screw head part of the arc bolt 4 and the cushion block 6 are both provided with arc surfaces, the arc surface of the screw head part of the arc bolt 4 is contacted with the arc surface of the first connecting lug 2, and the arc surface of the cushion block 6 is contacted with the arc surface of the second connecting lug 3;

first engaging lug 2 and second engaging lug 3 all are equipped with first inflection point 9, second inflection point 10, third inflection point 11 and fourth inflection point 12, the inner space of first engaging lug 2 and second engaging lug 3 that first inflection point 9, second inflection point 10, third inflection point 11 and fourth inflection point 12 constitute divide into two compartments, and one of them compartment is the drop shape, and another compartment is circular-arc trapezoidal for the base.

The theory of operation, this bolted connection formula clamp, rotatory locknut 8 makes cushion 6 support tightly second engaging lug 3, first engaging lug 2 tightens up inwards with second engaging lug 3 and extrudees each other with steel wool cushion 5, its effort makes the free end bending part atress of first engaging lug 2 and second engaging lug 3 tighten up to tail pipe central direction and realize the even atress of tail pipe jointly with circular clamp 1, because first engaging lug 2 and second engaging lug 3 are equipped with four bending parts, the space inside first engaging lug 2 and second engaging lug 3 is divided into two compartments, from this the structural strength of first engaging lug 2 and second engaging lug 3 will increase, because the part length that the middle part can directly be out of shape is shorter, can comparatively good transmission fastener's power, in order to satisfy the thin wall union coupling needs that torsion requirement is above 35 NM.

Finally, it should be noted that: although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications may be made to the embodiments or portions thereof without departing from the spirit and scope of the utility model.

Claims

1. A bolt connection type clamp comprises a circular clamp (1), a first connecting lug (2), a second connecting lug (3), an arc bolt (4), a steel wool cushion block (5), a cushion block (6), a gasket (7) and a check nut (8), wherein the first connecting lug (2) and the second connecting lug (3) are located at two ends of the circular clamp (1), the steel wool cushion block (5) is arranged between the first connecting lug (2) and the second connecting lug (3), one sides of the first connecting lug (2) and the second connecting lug (3) back to the steel wool cushion block (5) are arc-shaped surfaces, and the first connecting lug (2), the second connecting lug (3), the steel wool cushion block (5), the cushion block (6), the gasket (7) and the check nut (8) are sleeved outside the arc bolt (4); the round clamp (1), the first connecting lug (2) and the second connecting lug (3) are of an integrated structure, the two ends of the round clamp (1) are bent into the first connecting lug (2) and the second connecting lug (3), reinforcing blocks are welded on the outer sides of transition positions of the round clamp (1) and the first connecting lug (2) and the second connecting lug (3), and free ends of the first connecting lug (2) and the second connecting lug (3) are bent inwards; the steel wool cushion block (5), the cushion block (6) and the gasket (7) are in sliding connection with the arc bolt (4), and the locknut (8) is in threaded connection with the arc bolt (4); the screw head part and the cushion block (6) of the arc bolt (4) are both provided with arc surfaces, the arc surface of the screw head part of the arc bolt (4) is in contact with the arc surface of the first connecting lug (2), and the arc surface of the cushion block (6) is in contact with the arc surface of the second connecting lug (3);

the method is characterized in that: first engaging lug (2) and second engaging lug (3) all are equipped with first bending point (9), second bending point (10), third bending point (11) and fourth bending point (12), the inner space of first engaging lug (2) and second engaging lug (3) that first bending point (9), second bending point (10), third bending point (11) and fourth bending point (12) constitute divide into two compartments, and one of them compartment is the drop shape, and another compartment is circular-arc trapezoidal for the base.