Tool equipment for mounting coating layer of metal braided hose

Abstract

The utility model provides tooling equipment for mounting a coating layer of a metal braided hose, which comprises a pipe fitting with one fixed end, the other end of the pipe fitting is connected with a quick coupling component, the pipe fitting is connected with an air source, an air passage is arranged in the quick coupling component, an inner pipe connecting part and a braided layer connecting part are arranged on the quick coupling component, the coating layer is pre-sleeved on the pipe fitting, and the braided layer connecting part is arranged on the inner pipe connecting part. And sleeving of the coating layer is realized by moving the coating layer to the outside of the braid layer. The utility model has the beneficial effects that one end of the pipe fitting is fixed, the pipe fitting is externally connected with an air source to inflate the inside of the pipe fitting, the pipe fitting is sleeved with the coated layer, and the plug core is sleeved with the inner pipe of the metal braided hose, so that the operation of sleeving the coated layer by one person can be realized, and the assembly efficiency of a product is improved.

Description

TECHNICAL FIELD

[0001] The utility model belongs to the technical field of assembly tooling, and particularly relates to an assembly tooling for a metal braided hose coating layer. BACKGROUND

[0002] In some special fields, some special requirements of some countries require that a warning sign be provided on a metal hose, and therefore the metal hose usually needs to be provided with a coating layer, and the coating layer is usually a PVC pipe or a PE pipe. The production process of the coated stainless steel braided hose in the production and processing process currently has two kinds:

[0003] The first kind is to coat the coating layer on the braided metal hose by using an extruder, and then cut the coating layer into segments for welding, roll welding and pressure testing. However, this process has many production procedures, is time-consuming and labor-intensive, for example, the pipe body end surface is not flat when cutting into different lengths, and then the end surface needs to be trimmed; when the end surface is flat and the two ends are welded, the braided wire and the coating layer at the two ends need to be pulled out; and the roll welding and pressure testing operations are extremely inconvenient and inefficient.

[0004] The second kind is to weld the accessory joint at the two ends of the metal hose first, then braid, roll weld and pressure test, and then coat the coating layer on the pipe body which has been made into the appropriate length and size. The advantage of this process is that the welding of the accessory joint at the two ends, the braiding, the roll welding and the pressure testing are easy to process, and the difficulty is that the coating layer is not easy to coat. The previous method requires two or more people to complete: one person inflates the braided pipe from the end, and the other person holds the front end of the braided pipe and the coating layer (the other end of the coating layer is sealed first), the gas inflates the coating layer through the inner cavity of the braided pipe, the coating layer is expanded, and then the braided pipe is pushed into the coating layer little by little. Short products require two people to operate, but for products over 1.5 meters, additional personnel are required, resulting in low work efficiency and high production cost. SUMMARY

[0005] The technical problem to be solved by the utility model is how to conveniently assemble the coating layer of the metal hose.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical scheme:

[0007] The tooling device for installing the coating layer of the metal braided hose comprises a pipe fitting fixed at one end, a quick connector assembly connected to the other end of the pipe fitting, a gas source connected to the pipe fitting, a gas channel arranged in the quick connector assembly, an inner pipe connecting portion and a braided layer connecting portion arranged on the quick connector assembly, and a coating layer pre-sleeved on the pipe fitting, and the sleeving of the coating layer is realized by moving the coating layer to the outside of the braided layer.

[0008] As a preferred embodiment, one end of the pipe fitting connected to the quick connector assembly is provided with a connector sleeve, and a quick clamping mechanism is arranged between the connector sleeve and the quick connector assembly.

[0009] Preferably, the quick-connect mechanism includes a locking post radially arranged on the quick connector assembly, and an L-shaped latch on the interface sleeve. After the quick connector assembly is inserted into the interface sleeve, the locking post engages with the latch of the interface sleeve and is then rotated to engage.

[0010] Preferably, the quick connector assembly includes a connector, a locking sleeve, a support sleeve, and a plug. One end of the support sleeve has an axially oriented notch. The locking sleeve is movably fitted onto the outside of the support sleeve. The connector and the plug are respectively connected to the two ends of the support sleeve. The connector is connected to the interface sleeve. Both the connector and the support sleeve have axially penetrating through holes. The plug has a blind hole with one end open and the other closed. The inner tube of the metal braided hose is fitted onto the closed end of the plug. The side wall of the plug has a vent hole that communicates with the blind hole. A gap is provided between the plug and the support sleeve at the vent hole position to allow gas to pass through. The gas in the hose passes sequentially through the interface sleeve, the connector, the support sleeve, and the plug.

[0011] Preferably, the end of the support sleeve with the slit has a tapered part with a gradually increasing diameter. When the locking sleeve is in the position where it touches the tapered part of the support sleeve, the slit end of the support sleeve contracts and clamps the braided layer of the metal braided hose.

[0012] Preferably, a sealing ring is provided between the connector and the interface sleeve, and a sealing ring is provided on the outer ring of the end of the plug core.

[0013] Preferably, the support sleeve has internal threads at both ends, and the corresponding connector and plug are connected to the support sleeve at one end with external threads.

[0014] Preferably, the connector has an annular protrusion on its exterior to prevent the locking sleeve from slipping out.

[0015] The beneficial effects of this utility model are: This utility model uses a pipe fixed at one end and an external air source to inflate its interior. The cover layer is then placed on the pipe, and the inner tube of the metal braided hose is placed on the plug core. This allows one person to complete the operation of fitting the cover layer, thereby improving the assembly efficiency of the product. Attached Figure Description

[0016] Figure 1 This is a cross-sectional view of the entire utility model;

[0017] Figure 2 This is an exploded view of the quick connector assembly of this utility model;

[0018] Figure 3 This is a cross-sectional view of the quick connector assembly;

[0019] Figure 4 This is a structural schematic diagram of the connector;

[0020] Figure 5 This is a schematic diagram of the support sleeve structure. DETAILED DESCRIPTION

[0021] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all the other embodiments obtained by those skilled in the art without creative labor fall within the protection scope of the utility model.

[0022] Embodiment

[0023] Please refer to Figures 1-5 , the shown in the figure is a kind of metal braided hose coating layer 3 installation tooling equipment, including one end fixed pipe fitting 1, pipe fitting 1 other end connects quick coupling assembly 2, the pipe fitting 1 is hollow pipe, pipe fitting 1 connects gas source, the quick coupling assembly 2 is equipped with air passage, quick coupling assembly 2 is equipped with inner tube 5 connecting portion and braided layer 4 connecting portion, coating layer 3 is pre-installed on pipe fitting 1, by moving coating layer 3 to braided layer 4 outside to realize the sleeving of coating layer 3.In the embodiment, one end of pipe fitting 1 is fixed on wall or other carrier, after gas source is connected to pipe fitting 1, the inside is inflated, so that it is more convenient to sleeve coating layer 3.

[0024] In the embodiment, the connecting mode of quick coupling assembly 2 and pipe fitting 1 is that the one end of pipe fitting 1 connected with quick coupling assembly 2 is equipped with interface sleeve 6, and quick coupling assembly 2 is equipped with quick clamping mechanism between interface sleeve 6 and quick coupling assembly 2.In the embodiment, interface sleeve 6 is fixed on one end of pipe fitting 1, and can be fixed by threaded connection mode or other existing connection structure.

[0025] In the embodiment, the quick clamping mechanism includes clamping column 211 radially arranged on quick coupling assembly 2, and L-shaped clamping hole 61 is arranged on interface sleeve 6, after quick coupling assembly 2 is inserted into interface sleeve 6, clamping column 211 is clamped into clamping hole 61 of interface sleeve 6, and then rotation clamping cooperation is carried out.In the embodiment, the end of L-shaped clamping hole 61 is equipped with clamping groove 611, after clamping column 211 is clamped into the clamping groove 611, it is more stable, and cannot be easily taken out.

[0026] The structure of the quick connector assembly 2 in the embodiment includes a connector piece 21, a lock sleeve 22, a support sleeve 23, and a plug core 24. The support sleeve 23 has a cutout 231 axially formed at one end. In the embodiment, the cutout not only enables the periphery of the cutout to contract to play a clamping role, but also serves as an air passage. The lock sleeve 22 movably sleeves the outside of the support sleeve 23. The connector piece 21 and the plug core 24 are connected to the two ends of the support sleeve 23, respectively. The connector piece 21 is connected to the interface sleeve 6. The clamping column 211 is arranged on the connector piece 21. The connector piece 21 and the support sleeve 23 are both provided with a through hole penetrating in the axial direction. The plug core 24 is provided with a blind hole 241 with one end open and the other end closed. The inner tube 5 of the metal braided hose sleeves the closed end of the plug core 24. The plug core 24 is radially provided with a vent hole 242 communicating with the blind hole 241. The plug core 24 and the support sleeve 23 are provided with a gap for gas to pass through at the position of the vent hole 242. The gas in the pipe 1 passes through the interface sleeve 6, the connector piece 21, the inside of the support sleeve 23, the plug core 24, and then the cutout 231 of the support sleeve to enter the space between the inner tube and the covering layer.

[0027] In order to be able to clamp the metal braided hose, the embodiment is provided with a tapered portion 232 with gradually increasing diameter at the end of the support sleeve 23 provided with the cutout 231. The lock sleeve 22 is in contact with the tapered portion 232 of the support sleeve 23. In this state, the end of the support sleeve 23 provided with the cutout 231 is contracted to clamp the joint of the inner tube 5 of the metal braided hose. In the embodiment, the joint of the inner tube 5 of the metal braided hose is clamped by the cutout 231 of the support sleeve 23. By providing the tapered portion 232 on the support sleeve 23, the lock sleeve 22 is in contact with the tapered portion 232 when it is moved, so that the end of the support sleeve 23 provided with the cutout 231 is contracted to clamp the joint of the inner tube 5 of the metal braided hose.

[0028] The embodiment is provided with a sealing ring 7 between the connector piece 21 and the interface sleeve 6. The outer ring of the end of the closed end of the plug core 24 is provided with a sealing ring 7. The provision of the sealing ring 7 prevents gas leakage after aeration.

[0029] The inside of the two ends of the support sleeve 23 in the embodiment is provided with an internal thread. The end of the support sleeve 23 connected to the connector piece 21 and the plug core 24 is provided with an external thread.

[0030] The outside of the connector piece 21 is provided with a ring protrusion 212 to prevent the lock sleeve 22 from sliding out. The provision of the ring protrusion 212 makes the lock sleeve 22 unable to come out of the quick connector assembly 2.

[0031] The pipe 1 in this embodiment is a steel pipe, the specification of which depends on the length and inner diameter of the coating 3: the purpose is that the coating 3 can be easily sleeved on the steel pipe in the un-inflated state, one end of the steel pipe is fixed on the immovable base (such as the wall surface), and the air pipe is connected at the fixed end, the valve of the air pipe is installed at the appropriate position, when the valve is opened, the air flow is filled from the fixed end hole and flows out from the non-fixed end, then the interface sleeve 6 is connected with the non-fixed end of the air pipe, and the coating 3 is sleeved on the steel pipe, and the quick connector assembly 2 is assembled, the assembly process of the quick connector assembly 2 is that the lock sleeve 22 is sleeved outside the support sleeve 23, then the connector piece 21 and the plug core 24 are connected at both ends of the support sleeve 23, at this time the lock sleeve 22 can slide on the support sleeve 23 to control the opening and closing of the support sleeve 23, after the quick connector assembly 2 is assembled, the assembly is connected with the interface sleeve 6 through the connector piece 21, the elastic incision 231 of the support sleeve 23 is exposed by opening the lock sleeve 22, the joint of the inner tube 5 of the metal braided hose is inserted into the elastic incision 231 of the support sleeve 23, and the plug core 24 just blocks the inner cavity of the inner tube 5 of the braided hose, the support sleeve 23 is locked by closing the lock sleeve 22, at this time the braided hose is locked tightly, at this time the operator holds the coating 3 to sleeve the lock sleeve 22, opens the air valve switch to fill high-pressure gas into the hollow steel pipe, and pulls the coating 3 to the braided pipe, because the tooling device can guide the gas to flow between the lock sleeve 22 and the braided wire, so there is always a layer of gas flowing between the coating 3 and the braided hose, which isolates the contact between the two, greatly reduces the resistance of the coating 3 sleeved into the braided hose, so that the coating 3 can be easily sleeved on the braided hose, when the end of the coating 3 slides out of the lock sleeve 22, the lock sleeve 22 is opened, and a coated product is separated from the tooling, at this time the air valve is closed, and the coating process of the braided hose is completed.

Claims

1. A tooling apparatus for installing a covering on a metal braided hose, characterised in that: The utility model discloses a pipe fixed at one end, and the other end of the pipe is connected with a quick connector assembly, the pipe is connected with a gas source, a gas channel is arranged in the quick connector assembly, an inner tube connecting part and a braided layer connecting part are arranged on the quick connector assembly, a covering layer is arranged on the pipe, and the covering layer is sleeved on the pipe by moving the covering layer to the outside of the braided layer.

2. The tooling apparatus for installing a covering on a metal braid flexible hose as defined in claim 1, wherein: One end of the pipe connected with the quick connector assembly is provided with a connector sleeve, and a quick clamping mechanism is arranged between the connector sleeve and the quick connector assembly.

3. The tooling apparatus for installing a covering on a metal braid flexible hose as defined in claim 2, wherein: The quick clamping mechanism comprises a clamping column arranged radially on the quick connector assembly, and the connector sleeve is provided with an L-shaped clamping opening, and the quick connector assembly is inserted into the connector sleeve, and then the clamping column is clamped into the clamping opening of the connector sleeve, and then the clamping column is rotated to be clamped and matched.

4. The tooling apparatus for installing a metal braid hose covering layer of claim 3, wherein: The quick connector assembly comprises a connector piece, a lock sleeve, a support sleeve and a plug core, the support sleeve is axially provided with a cutout at one end, the lock sleeve is movably sleeved on the outside of the support sleeve, the connector piece and the plug core are connected at two ends of the support sleeve respectively, the connector piece is connected with the connector sleeve, wherein the connector piece and the support sleeve are both provided with an axial through hole, the plug core is internally provided with a blind hole with one end being open and the other end being closed, an inner tube of a metal braided flexible pipe is sleeved on the closed end of the plug core, a gas passage hole is radially arranged on the side wall of the plug core and communicates with the blind hole, a gap for gas passing is arranged between the plug core and the support sleeve at the position of the gas passage hole, and the gas in the pipe sequentially passes through the connector sleeve, the connector piece, the support sleeve and the plug core.

5. The tooling apparatus for installing a metal braid hose covering layer of claim 4, wherein: The end of the support sleeve provided with the cutout is provided with a tapered portion with gradually increasing diameter, and the support sleeve is clamped and held to the braided layer of the metal braided flexible pipe in a state that the lock sleeve top touches the tapered portion.

6. The tooling apparatus for installing a metal braid hose covering layer of claim 4, wherein: A sealing ring is arranged between the connector piece and the connector sleeve, and the outer ring of the end of the closed end of the plug core is provided with a sealing ring.

7. The tooling apparatus for installing a covering on a metal braid flexible hose as defined in claim 4, wherein: The inner thread is arranged in the inside of the two ends of the support sleeve, and the outer thread is arranged on the end of the support sleeve connected with the connector piece and the plug core.

8. The tooling apparatus for installing a covering on a metal braid flexible hose of claim 4, wherein: An annular convex is arranged on the outside of the connector piece to prevent the lock sleeve from sliding out.

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