DE3444840A1 - Apparatus for connecting aligned hose or tube ends, in particular in an exhaust pipe of internal combustion engines - Google Patents

Abstract

The apparatus comprises two hoops, each being extended by a semi-circular arc to form a ring. Each hoop of a ring comprises, in a groove running round the inner circumference, a tapered clamping surface, opposite which there is in each case a stop surface oriented towards the front side. The stop surface of each hoop continues in a front face on the ring. On the side facing away from the front side, each ring has a further tapered clamping surface, which is arranged opposite the clamping surface on the hoop and extends over approximately half the circumference of the arc. The apparatus comprises two parts of identical construction and, to couple hose or tube ends, one ring is arranged rotated by 180 DEG in the circumferential direction relative to the other ring and mirror-inverted. Each hoop of one ring thus extends around the semi-circular arc of the other ring, the rings or tube or hose ends connected to these being moved axially relative to one another via the tapered clamping surfaces. To provide gas-tight pressure on a seal arranged between the rings, the device comprises a clamping device with clamping screws acting transversely to the tube or hose axis. The rings are preferably firmly connected to the respective tube ends by welding.

Description

Device for connecting aligned hose or pipe

end, especially in an exhaust pipe of internal combustion engines According to the preamble of claim 1, the invention is based on CH-PS 302 653 off.

The generic features are the embodiment of Fig. 9 taken from this document, the rest of a variety of configurations such bracket with regard to the contact and the clamping surfaces on the one hand and the on the other hand shows the brackets bracing devices. All on pipe connections The illustrated embodiments show arranged at the pipe ends, with the stop and clamping surfaces of the bracket corresponding surfaces.

From DE-PS 866 881 it is known, the pipe-side corresponding To form surfaces on parts separate from the pipes and then with these parts to firmly connect the pipe ends. The separate pipe-side parts on the one hand and the stirrups including their bracing device on the other hand result in a large number Device comprising individual parts for connecting aligned hose or Pipe ends.

The invention is based on the object of the generic device to be trained in such a way that the circumference increases Individual parts without loss is reduced in the sealing function.

This task is given by the characterizing part of the main claim Features solved. With the development of each bracket to a closed scope Ring, the stop brackets required for a hose or pipe connection and clamping surfaces formed on only two components. This is by surprising Measure possible, which is aligned at the end of each bracket in its groove Stop surface to continue in the face of the ring, so that the in a common Flat stop and end faces for each on a hose or pipe end held ring stop and interacting with a seal face at the same time are. Another advantage of the invention is that a device for connecting aligned hose or pipe ends can be formed with two rings of the same type can, wherein the second ring is rotated 1800 in the circumferential direction relative to the first and is assigned the wrong way round. Since the device is thus identical from two identical rings is formed, the doubly usable ring simplifies production and warehousing. Since, after all, each bracket has the semicircular arch of the other Ring includes in the connection, a hose can thereby advantageously or the pipe end is coupled to the other pipe end by parallel lateral displacement with the mutual detection of the clamping surfaces assigned to one another the pipe end to be assembled moves in the axial direction against the other pipe end is up to the stop on the intermediate seal. On the one hand, this allows determine an installation direction that is advantageous for the installation conditions, and on the other hand is the handling of the clamping device due to the rings held on the pipe ends relieved.

The tensioning device comprises according to claim 2 on the ring in the region of the Bracket arranged tabs, which to achieve a high strength on the width of the bracket are turned off.

In the case of a pipe connection, according to claim 3, a particular rigidity is achieved achieved in that the pipe ends are welded to the rings. So are joint-like movements of the pipe connection safely prevented.

For less rigid pipe connections, the rings can also be used according to claim 4 are held by bulged pipe ends.

With the invention, one is formed from two parts that are identical in construction Achieved device that is easy to assemble, takes up little installation space, none has articulated character and a secure seal of the pipe connection guaranteed.

An embodiment of the invention is shown in the drawing. 1 shows a device in the assembled state in a front view, FIG. 2 shows a section through the device according to FIG. 1 along the line II-II.

A multi-part exhaust pipe 1, not shown in detail, is attached to their pipe ends 2, 2 'coupled by a device 3. The device 3 comprises two bracket Lt, lot ', each bracket4, Lt' by a semicircular arc 5, 5 'complements a ring 6, 6' forms. Each bracket Lt, 4 'includes one on the inner circumference arranged channel 7, 7 'a frontally aligned stop surface 8, 8', the a conical clamping surface 9, 9 'is opposite. Each ring 6, 6 ' has an end surface 10, 10 'identical to the stop surface 8, 8'. Further each ring 6, 6 'has one opposite to the clamping surface 9, 9' of the channel 7, 7 ' arranged on the side facing away from the end face 10, 10 'approximately over half the circumference further clamping surface 11, 11 '.

The rings 6, 6 'are fixed to the pipe ends 2, 2' by welding tied together. Opposite the ring 6, the second ring 6 ′ is relative to the first ring 6 Twisted around 1800 in the circumferential direction and arranged laterally reversed on the pipe end 2 '. This arrangement has the effect that each bend Lt, 4 'when coupling the pipe ends 2, 2' the semicircular arch 5 or 5 'comprises, the gutter-side clamping surfaces 9, 9 'come to rest on the clamping surfaces 11, 11' of the sheets 5, 5 '. Through this mutual engagement of the clamping surfaces 9 and 11 as well as 9 'and 11' takes place axially Movement of the pipe ends 2, 2 'towards one another. This axial movement is through a Intermediate seal 12 limited, which on the one hand on the stop surface 8 and the end face 10 of the ring 6 and on the other hand on the stop surface 8 'and the end face 10 'of the ring 6' rests. For gas-tight pressing of the seal 12, the device 3 has a clamping device 13. This includes on the outer circumference each ring 6, 6 'in the area of the bracket 4, 4' arranged tabs 1lot, 1lot '. the Tabs 1lot, 1lot 'have aligned guide holes for clamping screws 15 Mistake. The clamping screws 15 are arranged transversely to the pipe axis 16.

The rings can also be made of bulged or angled edges Pipe ends are held.

Claims (5)

Claims: 1. Device for connecting aligned hose or pipe ends, in particular in the case of an exhaust pipe of internal combustion engines, - comprising two brackets (4, 4 '), - each in a groove (7, 7') on the inner circumference, one at the end aligned stop surface (8, 8 ') and a conical opposite thereto Have clamping surface (9, 9 '), which - arranged with hose or pipe side corresponding surfaces cooperate, - furthermore, one of the brackets transversely to the hose or pipe axis (16) mutually bracing device (13) which - the over / Koni between the clamping surface n an axial pressure between the hose or pipe ends (2, 2 ') arranged seal (12), characterized in that - each Bracket (4, 4 ') with a semicircular arc (5, 5') complements a ring (6, 6 '), and - each ring is held on a hose or pipe end (2, 2') - each ring having an end face identical to the stop face (8, 8 ') (10, 10 '), and - one opposite to the clamping surface (9, 9') of the channel (7, 7 ') on the side facing away from the end face (10, 10 ') approximately over half the circumference arranged further clamping surface (11, 11 '), - those in the coupled Condition with the clamping surface of the channel of the second, relative to the first ring around 1800 twisted in the circumferential direction and interacts laterally assigned ring. 2. Apparatus according to claim 1, characterized in that each Ring (6, 6 ') on the outer circumference in the area of the bracket (4, 4') arranged tabs (14, 14 ') for the clamping device (13). 3. Device according to claims 1 and 2, characterized in that that the rings (6, 61) are welded to the pipe ends (2, 2 ') of an exhaust pipe (1) or are firmly connected. 4. Device according to claims 1 and 2, characterized in that that the rings are held by bulged or angled edges of the pipe ends are. 5. Device according to claims 1 to 4, characterized in that that the rings are braced with one another by springs, clips, clamps.