CN213299210U - Pipe joint - Google Patents

Abstract

The utility model discloses a coupling, it is used for the horizontal main pipe of drainage to connect two horizontal main pipes of drainage when passing through the movement joint, include: the connector comprises a round pipe-shaped connector main body made of silicon rubber and two sealing rings arranged inside the connector main body; when the sealing ring is used, the two drainage trunk pipes are respectively inserted from two ends of the joint main body and respectively inserted into one sealing ring, the sealing ring is tightly sleeved outside the drainage trunk pipes, and the joint main body corresponding to the sealing ring is locally extruded and deformed by the sealing ring and protrudes outwards, so that the two drainage trunk pipes are connected in a sealing manner at a deformation joint. Adopted the utility model discloses technical scheme's coupling because its pipe that includes the silicon rubber material connects the main part to and set up at two inside sealing washers of joint main part, simple structure, low cost not only can compensate axial displacement owing to connect the main part to be flexible moreover, can also compensate radial displacement, therefore convenient to use.

Description

Pipe joint

Technical Field

The utility model relates to a building drainage technology field, concretely relates to coupling especially relates to a special hose connection when solid wall drainage violently trunk (PVC-U) of hard polyvinyl chloride passes through building movement joint.

Background

It is often the case that the pipe needs to cross the deformation joints of the building. At present, when a pressure water supply system for water supply, fire protection and the like passes through a deformation joint, a metal corrugated pipe is generally adopted, and the flexibility of the metal corrugated pipe is utilized to compensate the mutual displacement of two ends of a connected pipeline, so that the deformation of the pipeline is avoided. However, in a building drainage system, parts similar to the metal corrugated pipe are not used, and the reason is that the joints and the materials of the metal corrugated pipe in the current market are only suitable for a clean water supply system adopting a metal pipeline. Because the thermal expansion coefficient of the metal material is greatly different from that of the plastic material, the metal corrugated pipe is easy to leak at the joint of the metal corrugated pipe and the plastic pipeline. Therefore, the metal bellows cannot be applied to a building drainage system using a plastic pipe.

In practice, drainage manifolds also often encounter problems with the need to cross the deformation joints. Because of low cost and easy installation, a large number of rigid polyvinyl chloride solid-wall drain pipes (PVC-U) are applied in engineering examples, and the rigid polyvinyl chloride solid-wall drain pipes (PVC-U) are provided with a drain horizontal main pipe expansion joint accessory, but the expansion joints can be flexibly connected due to the structural reason, but are limited by a fixed socket, the flexibility is limited, the angle of the axis of the drain pipe which can deflect relative to the interface is small, the expansion joints are generally used for compensating the axial expansion of the PVC-U drain pipes, and the radial deflection deformation generated when the PVC-U drain pipes pass through deformation joints has no effect. Therefore, at present, a better solution is not provided except that PVC-U drain pipe running pipes are separated at two sides of a deformation joint and the deformation joint is not crossed, but a drainage trunk pipe and a vertical pipe are additionally arranged, and the vertical pipe occupies a certain space when falling to the ground, so that the method is not favorable for owners, design and construction. The current national standard drawing set does not have a drainage plastic pipe accessory suitable for a drainage horizontal trunk pipe to pass through a deformation joint, and a PVC-U drainage pipe accessory which is suitable for a rigid polyvinyl chloride solid wall drainage horizontal trunk pipe (PVC-U) to pass through the deformation joint, is suitable for drainage property and cannot be corroded by sewage is not seen in the engineering example.

Therefore, it is necessary to develop a pipe joint suitable for rigid polyvinyl chloride (PVC-U) solid wall drainage trunk pipes, which not only is convenient to connect, but also can simultaneously bear radial deflection and axial expansion deformation, thereby facilitating design and construction.

Disclosure of Invention

The utility model aims to solve the technical problem that a pipe joint is provided, solve present building drainage system because do not have suitable coupling, need walk the problem of pipe respectively in movement joint both sides.

In order to solve the technical problem, the utility model adopts the following technical scheme:

a pipe joint for connecting two drainage trunks when the drainage trunks traverse a deformation joint, the pipe joint comprising: the connector comprises a round pipe-shaped connector main body made of silicon rubber and two sealing rings arranged inside the connector main body; when the sealing ring is used, the two drainage trunk pipes are respectively inserted from two ends of the joint main body and respectively inserted into one sealing ring, the sealing ring is tightly sleeved outside the drainage trunk pipes, and the joint main body corresponding to the sealing ring is locally extruded and deformed by the sealing ring and protrudes outwards, so that the two drainage trunk pipes are connected in a sealing manner at a deformation joint.

In a preferred technical scheme, the sealing ring is a silicon rubber sealing ring with an outer diameter larger than the inner diameter of the joint main body.

In the preferred technical scheme, the middle section outside the joint main body is also sleeved with a flexible protective sleeve.

In a further preferred technical scheme, the inner diameter of the flexible protective sleeve is smaller than the outer diameter of the joint main body, so that the flexible protective sleeve is sleeved on the middle part of the joint main body at a set tension.

In a preferred technical scheme, two depth marking lines are arranged outside the connector main body.

In a further preferred technical scheme, the middle of the connector main body is also sleeved with a flexible protective sleeve, and the flexible protective sleeve is positioned between the two depth marking lines.

In a preferable technical scheme, a lubricating grease layer or a lubricating oil layer is attached to the inner wall of the pipe joint main body.

In the preferred technical scheme, the pipe joint further comprises two sets of fixing supports matched with the outer diameter of the joint main body, and the two sets of fixing supports are fixed on two sides of the deformation joint during use.

In a preferred technical scheme, the pipe joint further comprises two rubber spacers, and the rubber spacers are arranged between the fixing support and the joint main body.

The rubber spacer is cylindrical, the fixing support is provided with a locking ring matched with the rubber spacer, and the rubber spacer and the joint main body are tightly pressed between the locking ring and the drainage horizontal main pipe after installation, so that the sealing effect is better ensured.

The utility model has the advantages that:

adopted the utility model discloses technical scheme's coupling because its pipe that includes the silicon rubber material connects the main part to and set up at two inside sealing washers of joint main part, simple structure, low cost not only can compensate axial displacement owing to connect the main part to be flexible moreover, can also compensate radial displacement, therefore convenient to use. After the pipe joint of the structure is adopted, the rigid polyvinyl chloride solid wall drainage trunk pipe can pass through the deformation joint very conveniently, the pipes do not need to be separately walked on two sides of the deformation joint, the drainage trunk pipe and the vertical pipe falling to the ground can be reduced, the design difficulty and the construction difficulty are greatly reduced, in the city with small soil, the deformation joints arranged by a large-scale building are many, the vertical pipes falling to the ground can be reduced by arranging the soft joints, the service area of the building is equivalently increased, the profit is increased for developers, and the benefit is brought to the owners.

The present invention will be described in further detail with reference to the accompanying drawings.

Drawings

FIG. 1 is a schematic sectional view of a longitudinal section of a pipe joint according to an embodiment of the present invention;

FIG. 2 is a reference view of a pipe joint according to an embodiment of the present invention;

fig. 3 is a partially enlarged view of a portion a in fig. 2.

Detailed Description

As shown in fig. 1 and 2, the present embodiment provides a pipe joint for connecting two drainage manifolds 3, 4 when the drainage manifolds pass through a deformation joint 2 of a building wall 1, the pipe joint comprising: a circular tube-shaped joint main body 50 made of silicon rubber, and two sealing rings 51 and 52 arranged inside the joint main body 50; when the drainage cross-stem pipe joint is used, as shown in fig. 2 and 3, the two drainage cross-stem pipes 3 and 4 are respectively inserted from two ends of the joint main body 50 and are respectively inserted into one of the sealing rings 51 and 52, the sealing rings 51 and 52 are tightly sleeved outside the drainage cross-stem pipes 3 and 4, and the part of the joint main body 50 corresponding to the sealing rings 51 and 52 is extruded and deformed by the sealing rings 51 and 52 to protrude outwards, so that the sealing connection of the two drainage cross-stem pipes 3 and 4 at the deformation joint 2 is realized.

Adopted the utility model discloses technical scheme's coupling because its pipe that includes the silicon rubber material connects main part 50 to and set up at two inside sealing washers 51, 52 of connecting main part 50, not only simple structure, low cost, because connect main part 50 to be flexible, not only can compensate axial displacement, can also compensate radial displacement, therefore convenient to use. After the pipe joint with the structure is adopted, the rigid polyvinyl chloride solid wall drainage trunk pipes 3 and 4 can conveniently pass through the deformation joint 2, the pipes do not need to be separately led on two sides of the deformation joint 2, the use of the drainage trunk pipes and the vertical pipes falling to the ground can be reduced, and the design and construction difficulty is greatly reduced. In the city with large size, the deformation joints arranged by the large building are numerous, and the pipe joints of the specific embodiment can reduce a lot of vertical pipes falling to the ground, which is equivalent to increase the usable floor area of the building, increases profits for developers and also brings benefits to owners.

In a preferred embodiment, the sealing rings 51 and 52 are silicone sealing rings having an outer diameter larger than the inner diameter of the joint main body 50, and the sealing rings 51 and 52 are designed to be stable in the joint main body 50 even in an unused state, so as not to fall off or come out.

In the preferred technical scheme, a flexible protective sleeve 53 is further sleeved on the middle section of the exterior of the joint main body 50. The flexible protective sleeve 53 may also be made of silicone rubber, in order to further improve the elastic strength of the middle portion of the pipe joint.

In a further preferred technical solution, the inner diameter of the flexible protection sleeve 53 is smaller than the outer diameter of the joint main body 50, so that the flexible protection sleeve is sleeved on the middle portion of the joint main body 50 with a set tension.

In a preferred technical solution, two depth marking lines 501 and 502 are arranged outside the joint main body 50. The two depth marking lines 501, 502 indicate the recommended depth of insertion of the drainage crossmains 3, 4. During construction, the ends of the drainage horizontal main pipes 3 and 4 can be aligned to the corresponding depth marking lines 501 and 502, then the oil pen is used for scratching marks on the drainage horizontal main pipes 3 and 4, and whether the insertion depth is proper or not can be conveniently known after the joint main body 50 is inserted, so that insufficient insertion depth or excessive insertion is avoided.

In a further preferred technical scheme, a flexible protective sleeve 53 is further sleeved in the middle of the connector main body 50, and the flexible protective sleeve 53 is located between the two depth marking lines 501 and 502.

In a preferred embodiment, a grease layer or a grease layer (not shown) is attached to the inner wall of the pipe joint body 50, and it is not necessary to use a grease or grease having a corrosive effect on silicone rubber.

In a preferred technical scheme, the pipe joint further comprises two sets of fixing brackets 54 and 55 which are matched with the outer diameter of the joint main body 50, and when in use, the pipe joint is fixed on the wall 1 at two sides of the deformation joint 2 through the support posts 541 and 551 of the two sets of fixing brackets 54 and 55. Due to the fact that the fixing supports 54 and 55 are matched in a matched mode, the fixing device can be better installed and fixed, and falling-off is reduced.

In a preferred embodiment, the pipe joint further includes two rubber spacers 56 and 57, and the rubber spacers 56 and 57 are disposed between the fixing brackets 54 and 55 and the joint main body 50. Because the fixing brackets 54 and 55 are usually made of metal and the joint main body 50 is made of silicon rubber, the rubber spacers 56 and 57 can better protect the joint main body 50, so that the whole joint is more reliable and has longer service life.

The rubber spacers 56 and 57 are cylindrical, the fixing supports 54 and 55 are provided with locking rings 540 and 550 matched with the cylindrical rubber spacers 56 and 57, and after installation, the rubber spacers 56 and 57 and the joint main body 50 are tightly pressed between the locking rings and the drainage trunk pipes 3 and 4, so that the sealing effect is better ensured.

The foregoing is a more detailed description of the present invention, taken in conjunction with the specific preferred embodiments thereof, and it is not intended that the invention be limited to the specific embodiments shown and described. To the utility model belongs to the technical field of ordinary technical personnel, do not deviate from the utility model discloses under the prerequisite of design, can also make a plurality of simple deductions or replacement, all should regard as belonging to the utility model discloses a protection scope.

Claims (10)

1. A pipe joint for connecting two drainage trunks when the drainage trunks traverse a deformation joint, the pipe joint comprising: the connector comprises a round pipe-shaped connector main body made of silicon rubber and two sealing rings arranged inside the connector main body; when the sealing ring is used, the two drainage trunk pipes are respectively inserted from two ends of the joint main body and respectively inserted into one sealing ring, the sealing ring is tightly sleeved outside the drainage trunk pipes, and the joint main body corresponding to the sealing ring is locally extruded and deformed by the sealing ring and protrudes outwards, so that the two drainage trunk pipes are connected in a sealing manner at a deformation joint.

2. A pipe coupling according to claim 1, wherein the sealing ring is a silicone rubber sealing ring having an outer diameter greater than an inner diameter of the coupling body.

3. The coupler according to claim 1, wherein the outer middle section of the coupler body is further sleeved with a flexible boot.

4. A pipe coupling according to claim 3, wherein the inner diameter of the flexible boot is smaller than the outer diameter of the coupling body, such that it fits over the middle of the coupling body with a set tension.

5. The coupler according to claim 1, wherein two depth marking lines are provided on the exterior of the coupler body.

6. The pipe joint according to claim 5, wherein the joint body is further sleeved with a flexible protective sleeve in the middle, and the flexible protective sleeve is located between the two depth marking lines.

7. A pipe-fitting according to any of claims 1 to 6, wherein a layer of grease or oil is adhered to the inner wall of the pipe-fitting body.

8. A pipe fitting according to any one of claims 1 to 6, wherein the pipe fitting further comprises two sets of fixing brackets adapted to the external diameter of the fitting body, and wherein the two sets of fixing brackets are used to fix the pipe fitting on both sides of the deformation joint.

9. The coupler according to claim 8, further comprising two rubber spacers disposed between the fixing bracket and the coupler body.

10. The pipe joint of claim 9, wherein the rubber spacer is cylindrical, the fixing bracket has a locking ring fitted to the rubber spacer, and the rubber spacer and the joint body are compressed between the locking ring and the drainage trunk pipe after installation, thereby better ensuring the sealing effect.

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