A spiral protective sleeve telescopic tube

Abstract

The utility model discloses a spiral protective sleeve telescopic pipe, including outer tube and inner tube, the outer tube includes spiral protective sleeve outer tube, the inner tube can be all sorts of hose, including bellows, PVC hose and other plastic hose in any one, spiral protective sleeve outer tube is connected to the inner tube outside, and spiral protective sleeve outer tube can follow the telescopic of inner tube. Compared with traditional cloth sleeve outer tube, spiral protective sleeve appearance has better friction effect, improves the effect of pipe anti -internal and external pressure, compared with traditional hose in the use process, it is easy to bend and block water, but has spiral protective sleeve outer tube, and the protective sleeve and inner tube stretch, turn, effectively support the whole pipe body not to be extruded and bent, avoid the problem of blocking water after being bent, through the support of this spiral structure, the use pain point of this kind of hose is improved greatly.

Description

Technical Field

[0001] This utility model relates to the field of water pipes, specifically to a spiral protective sleeve water pipe. Background Technology

[0002] Traditional water pipes are mostly used in everyday scenarios such as garden irrigation and car washing. During use, water pipes are prone to friction with the ground, or they are prone to bending when in use or when stored, causing problems such as water blockage, wear and tear, and low pressure resistance, which greatly reduces the service life of the water pipes.

[0003] A domestic patent application, CN107448699B, discloses a wear-resistant multi-layer telescopic water pipe, comprising a telescopic inner tube and a fabric sleeve fitted outside the inner tube. The fabric sleeve is one or more layers of telescopic corrugated or straight tubular fabric sleeves, and a telescopic wear-resistant protective layer is fitted on the outside of the fabric sleeve. The outer tube of the fabric sleeve has poor wear resistance, and the fabric sleeve is relatively soft, which can easily cause water blockage due to bending during use. Utility Model Content

[0004] To address the shortcomings of existing technologies, this utility model provides a spiral protective sleeve telescopic tube. The outer tube adopts a spiral protective sleeve, which has better wear resistance and better bending resistance.

[0005] A spiral protective sleeve telescopic tube includes an outer tube and an inner tube. The outer tube includes a spiral protective sleeve outer tube, and the inner tube includes any one of a corrugated pipe, a cloth-sleeved corrugated pipe, a PVC hose, or a plastic hose. The spiral protective sleeve outer tube is sleeved on the outside of the inner tube. The spiral protective sleeve outer tube can freely turn, expand, and contract with the inner tube, effectively protecting the inner tube from being squeezed flat, bent, or blocked.

[0006] Furthermore, the outer tube of the spiral protective sleeve is formed by spirally winding a long strip of plastic sheet; The outer tube of the spiral protective sleeve is spirally contracted in its natural state; The outer tube of the spiral protective sleeve can be freely bent and stretched under external force.

[0007] Furthermore, the outer tube of the spiral protective sleeve has a gap. The gap is small in the natural state and increases in the unfolded state, thereby increasing the turning radius.

[0008] Furthermore, the outer and inner pipes are respectively connected to a water inlet valve and a water outlet valve at both ends.

[0009] Furthermore, the water inlet valve includes a connector, a connecting pipe at the end of the connector, and a locking sleeve fitted onto the connecting pipe; the ends of the outer pipe and the inner pipe are fitted onto the connecting pipe, the connecting pipe is provided with external threads, the locking sleeve is provided with internal threads, and the locking sleeve is fixed to the connecting pipe by threaded connection.

[0010] Furthermore, the ends of the inner tube and the outer tube are clamped and fixed between the locking sleeve and the connecting tube by a connecting tube; The connecting pipe is equipped with an inlet channel for water flow.

[0011] Furthermore, the outlet valve includes a valve seat, a sleeve located at the bottom of the valve seat, and a sleeve on the sleeve; the ends of the outer tube and the inner tube are sleeved on the sleeve, the sleeve is provided with external threads, the sleeve is provided with internal threads, and the sleeve is fixed to the sleeve by threaded connection.

[0012] Furthermore, the ends of the inner tube and the outer tube are clamped and fixed between the sleeve and the sleeve by a sleeve clamp; The sleeve is provided with a water outlet channel for water flow.

[0013] Furthermore, the outer surface of the spiral protective sleeve has an arc-shaped protrusion. The spiral protective sleeve outer tube is longitudinally distributed with a central bulge that tapers inward on both sides.

[0014] The advantages of this invention compared to the prior art are: This utility model replaces the traditional outer tube with a spiral protective sleeve outer tube. The spiral protective sleeve outer tube is made of plastic and has the characteristics of being resistant to bending, friction, and pressure. In use, it has better bending resistance, friction resistance, and pressure resistance than the traditional cloth sleeve outer tube. Attached Figure Description

[0015] Figure 1 The diagram shown is a schematic of a spiral protective sleeve telescopic tube.

[0016] Figure 2 The diagram shown is a schematic of the outer and inner tubes of a spiral protective sleeve telescopic tube.

[0017] Figure 3 The diagram shows a spiral protective sleeve telescopic tube with a PVC flexible inner tube.

[0018] Figure 4 The diagram shows a spiral protective sleeve telescopic tube with an inner tube made of fabric corrugated pipe.

[0019] Figure 5 The image shown is an exploded view of the inner and outer tubes of a spiral protective sleeve telescopic tube.

[0020] Figure 6 The diagram shows a water inlet at the joint of a spiral protective sleeve telescopic pipe.

[0021] Figure 7 The diagram shows a connector structure for a spiral protective sleeve telescopic tube.

[0022] Figure 8The diagram shows a connector for a spiral protective sleeve telescopic tube.

[0023] Figure 9 The diagram shows the assembly of the tube body joint of a spiral protective sleeve telescopic tube. Figure 1 .

[0024] Figure 10 The diagram shows the assembly of the tube body joint of a spiral protective sleeve telescopic tube. Figure 2 .

[0025] Figure 11 The diagram shows the assembly of the tube body joint of a spiral protective sleeve telescopic tube. Figure 3 .

[0026] Figure 12 The diagram shows the assembly of the tube body joint of a spiral protective sleeve telescopic tube. Figure 4 .

[0027] Attached reference numerals: 1. Pipe body; 2. Inlet connector; 3. Outlet connector; 4. Outer pipe; 5. Inner pipe; 6. Corrugated pipe; 7. Arc-shaped protrusion; 8. Gap; 9. PVC hose; 10. External thread; 11. Fabric-sheathed corrugated pipe; 12. Spiral protective sleeve outer pipe; Water inlet valve; 112, water outlet valve; 212. Connecting pipe; 213. Locking sleeve; 214. Water inlet channel; 215. Water inlet end of inner and outer pipes; 217. Valve seat; 218. Sleeve; 219. Inner and outer pipe outlet ends; 220. Outlet channel. Detailed Implementation

[0028] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0029] like Figure 1-5 As shown, a spiral protective sleeve telescopic tube includes a tube body 1 and an inlet connector 2 and an outlet connector 3 located at both ends of the tube body 1. The tube body 1 includes an outer tube 4 and an inner tube 5. The outer tube 1 includes a spiral protective sleeve outer tube 12. The inner tube includes any one of a corrugated pipe 6, a cloth-sleeved corrugated pipe 11, a PVC hose 9, or a plastic hose. The spiral protective sleeve outer tube 12 is sleeved on the outside of the inner tube 5. The spiral protective sleeve outer tube 12 can freely turn, expand, and contract with the inner tube, effectively protecting the inner tube from being squeezed flat, bent, or blocked.

[0030] The inner tube shown can be any flexible tube body. By setting a spiral protective sleeve on the outside of the inner tube, the spiral protective sleeve protects the inner tube. The spiral protective sleeve has good flexibility and can bend and stretch with the inner tube. It also has better friction than the traditional cloth sleeve outer tube. The spiral protective sleeve has gaps, which make it more supportive. Therefore, it has better resistance to bending and solves the problem of water blockage when bending traditional expansion tubes.

[0031] The spiral protective sleeve outer tube 12 shown is formed by spirally winding a long strip of plastic sheet; the spiral protective sleeve outer tube 12 is spirally contracted in its natural state; the spiral protective sleeve outer tube can be freely bent and stretched under external force. Figure 5 As shown, the outer tube 12 of the spiral protective sleeve is spirally contracted in its natural state.

[0032] The spiral protective sleeve outer tube 12 shown has a gap 8. The gap is small in the natural state and increases in the unfolded state, which increases the turning radius. Since the spiral protective sleeve outer tube is formed by spiral winding of a long strip of plastic sheet, the contact position of the long strip of plastic sheet is not fixed during the spiral winding process, and the gap exists in the production process.

[0033] The water inlet valve 111 shown includes a connector 211, a connecting pipe 212 located at the end of the connector 211, and a locking sleeve 213 fitted onto the connecting pipe 212. The inlet ends 215 of the outer pipe 4 and the inner pipe 5 shown are fitted onto the connecting pipe 212. The inlet ends 215 are fixed to the connecting pipe 212 by an interference fit. The connecting pipe 212 is provided with an external thread, which protrudes from the upper end of the connecting end. The inlet end 215 is fitted onto the lower end of the connecting pipe. The locking sleeve 213 is provided with an internal thread and is fixed to the connecting pipe by a threaded connection. The lower part of the locking sleeve 213 is inclined inward, and the reduced size of the lower part of the locking sleeve is used to clamp the connection between the inner pipe and the outer pipe and the connecting pipe.

[0034] The inner tube 5 and the outer tube 4 shown are clamped and fixed between the locking sleeve 213 and the connecting tube 212 by the connecting tube 212; the connecting tube 212 shown is provided with an inlet channel 214 for water to flow through.

[0035] The water outlet valve 112 shown includes a valve seat 216, a sleeve 217 located at the bottom of the valve seat 216, and a sleeve 218 located on the sleeve 217. The water outlet ends 219 of the outer pipe 4 and the inner pipe 5 shown are sleeved on the sleeve 217. The sleeve 217 is provided with external threads, and the sleeve 218 is provided with internal threads. The sleeve is fixed to the sleeve by threaded connection. The connection structure of the water outlet valve in this application is the same as the connection structure of the water inlet valve.

[0036] The inner tube 5 and outer tube 4 are clamped and fixed between the sleeve 218 and the sleeve 217 by the sleeve 217. The external thread on the sleeve is located at the upper part, and the ends of the inner tube and outer tube are sleeved on the lower part of the sleeve. The lower part of the sleeve is inclined inward. The ends of the inner tube and outer tube are connected and fixed to the sleeve by a sleeve connection, and then clamped by the inclined lower part of the sleeve. After the sleeve is threadedly connected to the sleeve, the inner tube, outer tube and sleeve are tightly clamped and connected. The sleeve 218 is provided with a water outlet channel 220 for water flow.

[0037] The outer tube 12 of the spiral protective sleeve shown has an arc-shaped protrusion 7 on its surface; the outer tube 12 of the spiral protective sleeve shown has a longitudinal distribution with a central bulge and the two sides converging inward. The design of the central bulge of the outer tube of the spiral protective sleeve makes the ground clearance of the inner tube higher, avoiding contact with the bottom protrusion and reducing friction.

[0038] This application provides a spiral protective sleeve outer tube outside the corrugated inner tube. Compared with the traditional cloth-sleeved outer tube, the spiral protective sleeve outer tube is more resistant to bending, friction, and pressure. In use, it has better bending resistance, friction resistance, and pressure resistance than the traditional cloth-sleeved outer tube.

[0039] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, all variations falling within the meaning and scope of equivalents of the claims are intended to be included within this invention, and no reference numerals in the claims should be construed as limiting the scope of the claims.

Claims

1. A spiral protective sleeve telescopic tube, comprising an outer tube and an inner tube, characterized in that, The outer tube includes a spiral protective sleeve outer tube, and the inner tube includes any one of a corrugated pipe, a cloth-sleeved corrugated pipe, a PVC hose, or a plastic hose; The outer spiral protective sleeve is fitted onto the outside of the inner tube. The outer spiral protective sleeve can freely turn, expand, and contract with the inner tube, effectively protecting the inner tube from being squeezed flat, bent, or blocked. The outer tube of the spiral protective sleeve is formed by spirally winding a long strip of plastic sheet. The outer tube of the spiral protective sleeve is spirally contracted in its natural state; The outer tube of the spiral protective sleeve can be freely bent and stretched under external force.

2. The spiral protective sleeve telescopic tube according to claim 1, characterized in that, The outer tube of the spiral protective sleeve has a gap. The gap is small in the natural state and increases in the unfolded state, thereby increasing the turning radius.

3. The spiral protective sleeve telescopic tube according to claim 1, characterized in that, The outer and inner pipes are respectively connected to a water inlet valve and a water outlet valve at both ends.

Images