Quick grouting pipe joint

Abstract

The utility model discloses a quick grouting pipe joint which facilitates quick connection of an anchor rod and a connector and is convenient to operate. The quick grouting pipe joint comprises a connector body, a grouting pipe joint body, a spinning cover and a retaining sleeve. An annular limiting boss is arranged on the outer surface of one end of the grouting pipe joint; a first connecting pipe is arranged at the other end; one end of the first connecting pipe is connected with the grouting pipe joint, and the other end is provided with a second connecting pipe; the outer surface of the second connecting pipe is a conical surface; one end of the spinning cover sleeves the grouting pipe joint and is in threaded fit with one end of the connector body; the retaining sleeve is arranged on the first connecting pipe in a sleeving manner; one end of the retaining sleeve is in threaded fit with the first connecting pipe; the other end is an extrusion tube; and the inner wall of the extrusion pipe is an extrusion conical surface. The quick grouting pipe joint is quick in connection, can save the connection time, improves the working efficiency, and is wide in application range and high in operability; the operation is simple.

Description

Technical Field

[0001] The utility model relates to a connecting head of a hollow anchor rod, in particular to a quick grouting pipe joint. Background Art

[0002] During the anchor grouting construction process, the grouting joints commonly used are British pipe threads or tapered pipe threads connected to the grouting pipe. Because the grouting pipe has a certain rigidity, the thread alignment is difficult, and the thread is right-handed, while most anchor bolt threads are left-handed, which will lead to an unsmooth connection. During the screwing process, the thread connection at the anchor bolt end will loosen due to the opposite direction of the thread; and the thread lead is long, and the connection locking time is long, which makes the construction difficult and inconvenient. Utility Model Content

[0003] The technical problem to be solved by the utility model is to provide a quick grouting pipe joint which is convenient for realizing quick connection between an anchor rod and a connecting head and is easy to operate.

[0004] The utility model solves the technical problem by adopting the following technical scheme: a quick grouting pipe joint comprises a connector body; a grouting pipe joint, a spinning cover and a stop sleeve;

[0005] One end of the connector body is provided with a threaded cavity matching the anchor rod, and the other end is provided with a connecting cavity matching one end of the grouting pipe joint; the threaded cavity is communicated with the connecting cavity;

[0006] An annular limiting boss is arranged on the outer surface of one end of the grouting pipe joint; a first connecting pipe is arranged at the other end; one end of the first connecting pipe is connected to the grouting pipe joint, and a second connecting pipe is arranged at the other end; the outer surface of the second connecting pipe is a conical surface; an annular anti-slip boss is arranged on the outer surface of the second connecting pipe;

[0007] One end of the spin-on cover is provided with a stepped hole and is sleeved on the grouting pipe joint; one end of the grouting pipe joint is inserted into the connecting cavity of the connector body; the spin-on cover is threadedly matched with one end of the connector body provided with the connecting cavity; a first sealing ring is provided between one end of the grouting pipe joint and the bottom of the connecting cavity;

[0008] The outer surface of the first connecting tube is provided with threads; the anti-retraction sleeve is sleeved on the first connecting tube; one end of the anti-retraction sleeve is matched with the thread of the first connecting tube; the other end is an extrusion tube; the inner wall of the extrusion tube is an extrusion cone surface.

[0009] Furthermore, the outer diameter of the first connecting pipe is smaller than the outer diameter of the grouting pipe joint; and a second sealing ring is provided between one end of the grouting pipe joint and the stop sleeve.

[0010] Furthermore, a connecting thread is provided at a middle position of the outer surface of the retaining sleeve.

[0011] Specifically, the connector body, the grouting pipe joint, the spin-on cover and the stop sleeve are all made of stainless steel.

[0012] Furthermore, a handle is provided on the connector body.

[0013] Furthermore, an outer surface of the spin-on cover and an outer surface of one end of the retaining sleeve are both provided with an axial anti-slip boss.

[0014] The beneficial effects of the utility model are as follows: the quick grouting pipe joint described in the utility model has the following advantages:

[0015] 1. Since the outer surface of the second connecting pipe is set as a conical surface and an extrusion conical surface is set at one end of the stop sleeve, it is convenient to connect with grouting pipes of different models and can ensure a tight connection;

[0016] 2. The quick grouting pipe joint described in the present application is connected to the anchor rod through the connector body, and the connector body is connected to the grouting pipe joint through the screw-on cover; the grouting pipe joint is connected to the grouting pipe; therefore, it is easy to achieve thread alignment and quick connection. It only needs to rotate the screw-on cover, and the screw-on cover rotates and moves forward to drive one end of the grouting pipe joint to be inserted into the connector body; and the grouting pipe joint is pressed tightly into the connector body, thereby achieving connection;

[0017] 3. The quick grouting pipe joint described in the present application can achieve compression of the grouting pipe due to the provision of a back-stop sleeve, thereby preventing the grouting pipe from falling off; further, a connecting thread is provided on the back-stop sleeve, which can facilitate the connection of the grouting pipe whose inner diameter matches the back-stop sleeve.

[0018] In summary, the quick grouting pipe joint described in the present application can save connection time and improve work efficiency, and at the same time has a wide range of applications, strong operability and is easy to operate. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is an exploded schematic diagram of a quick grouting pipe joint in an embodiment of the utility model;

[0020] Figure 2 It is a stereoscopic diagram of a quick grouting pipe joint in an embodiment of the utility model;

[0021] Figure 3 This is a front view of a quick grouting pipe joint in an embodiment of the utility model;

[0022] Figure 4 yes Figure 3 AA section view;

[0023] Figure 5It is a schematic diagram of the structure when the stop sleeve knob of the utility model is at the lowest position;

[0024] The attached figure shows: 100 - connector body, 110 - handle, 200 - grouting pipe joint, 210 - limiting boss, 220 - first connecting pipe, 230 - second connecting pipe, 300 - first sealing ring, 400 gland, 500 - anti-retraction sleeve, 510 - connecting thread, 520 - extrusion pipe; 600 - second sealing ring. DETAILED DESCRIPTION

[0025] The utility model is further described below in conjunction with the accompanying drawings and embodiments.

[0026] like Figures 1 to 5 As shown, the quick grouting pipe joint of the utility model comprises a connector body 100; and also comprises a grouting pipe joint 200, a spinning cover 400 and a stop sleeve 500;

[0027] The main function of the connector body 100 is to achieve connection with the anchor rod; the connector body 100 can be cast by cast iron or made of stainless steel.

[0028] Specifically, one end of the connector body 100 is provided with a threaded cavity matching the anchor rod, and the other end is provided with a connecting cavity matching one end of the grouting pipe joint 200; the threaded cavity is communicated with the connecting cavity;

[0029] Among them, the grouting pipe joint 200 is mainly used to connect the grouting pipe and realize the connection with the connector body 100; specifically, an annular limiting boss 210 is provided on the outer surface of one end of the grouting pipe joint 200; a first connecting pipe 220 is provided at the other end; one end of the first connecting pipe 220 is connected to the grouting pipe joint 200, and the other end is provided with a second connecting pipe 230; the outer surface of the second connecting pipe 230 is a conical surface; the outer surface of the second connecting pipe 230 is provided with an annular anti-slip boss evenly distributed along the axial direction;

[0030] The main function of the first connecting pipe 220 is to install the stop sleeve 500, and the main function of the second connecting pipe 230 is to achieve connection with the grouting pipe. The outer surface of the second connecting pipe 230 is a conical surface; therefore, it can adapt to grouting pipes of different inner diameters. An annular anti-skid boss evenly distributed along the axial direction is provided on the outer surface of the second connecting pipe 230; it can prevent the grouting pipe from slipping. The grouting pipe joint 200 can be made of stainless steel as a whole, which can prevent water rust from affecting the service life.

[0031] The spin-on cover 400 is provided with a stepped hole at one end and is sleeved on the grouting pipe joint 200; one end of the grouting pipe joint 200 is inserted into the connection cavity of the connector body 100; the spin-on cover 400 is threadedly matched with one end of the connector body 100 provided with the connection cavity; a first sealing ring 300 is provided between one end of the grouting pipe joint 200 and the bottom of the connection cavity;

[0032] A stepped hole is provided at one end of the spin-on cover 400, so that when the spin-on cover 400 is installed on the connector body 100 and then screwed, the grouting pipe joint 200 can be driven to move through the limiting boss 210 on the grouting pipe joint 200, inserted into the connecting cavity of the connector body 100, and the connection between the connector body 100 and the grouting pipe joint 200 is realized.

[0033] The first connecting tube 220 is provided with threads on its outer surface; the anti-retraction sleeve 500 is sleeved on the first connecting tube 220; one end of the anti-retraction sleeve 500 is threadedly matched with the first connecting tube 220; the other end is an extrusion tube 520; the inner wall of the extrusion tube 520 is an extrusion cone surface.

[0034] The main function of the anti-retraction sleeve 500 is to prevent the spin-on cover 400 from falling off the grouting pipe joint 200; at the same time, it can squeeze the grouting pipe and press the grouting pipe onto the second connecting pipe 230. Figure 4 , 5 As shown, the anti-retraction sleeve 500 is twisted, and the anti-retraction sleeve 500 is Figure 4 Move to Figure 5 During the process of moving to the position shown in FIG. 5 , the grouting pipe sleeved on the second connecting pipe 230 will be pressed tightly by the inner wall of the extrusion pipe 520 as an extrusion cone surface, thereby preventing the grouting pipe from falling off.

[0035] In the specific application process, the spin-on cap 400 adopts a corrugated thread with a pitch of 12.7, the thread connection lead is only 1 turn, and the rotation direction is consistent with the rotation direction of the anchor used in the construction. The joint body 100 is connected to the anchor, and the guide section of the grouting pipe joint 200 that is tightly connected to the grouting pipe is inserted into the joint body 100. The spin-on cap 400 is easily tightened, and the grouting work can be carried out; after the grouting construction is completed, it can also be quickly disassembled.

[0036] In a feasible embodiment, in order to improve the sealing performance, it is convenient to connect the grouting pipe whose inner diameter matches the anti-retraction sleeve; further, the outer diameter of the first connecting pipe 220 is smaller than the outer diameter of the grouting pipe joint 200; a second sealing ring 600 is provided between one end of the grouting pipe joint 200 and the anti-retraction sleeve 500. In order to facilitate the connection between the anti-retraction sleeve 500 and the grouting pipe, further, a connecting thread 510 is provided in the middle position of the outer surface of the anti-retraction sleeve 500.

[0037] In a feasible embodiment, in order to improve the service life, further, the connector body 100, the grouting pipe joint 200, the spin-on cover 400 and the stop sleeve 500 are all made of stainless steel.

[0038] In a feasible embodiment, in order to facilitate the rotation of the connector body 100 and realize the connection between the connector body 100 and the anchor rod, further, a handle 110 is provided on the connector body 100 .

[0039] In a feasible embodiment, in order to facilitate the rotation of the spin-on cover 400 and the stop sleeve 500 , the outer surface of the spin-on cover 400 and the outer surface of one end of the stop sleeve 500 are both provided with axial anti-slip bosses.

Claims

1. A quick grouting pipe joint, comprising a connector body (100); characterized in that: It also includes a grouting pipe joint (200), a spinning cover (400) and a stop sleeve (500); One end of the connector body (100) is provided with a threaded cavity matching the anchor rod, and the other end is provided with a connection cavity matching one end of the grouting pipe joint (200); the threaded cavity is in communication with the connection cavity; An annular limiting boss (210) is provided on the outer surface of one end of the grouting pipe joint (200); a first connecting pipe (220) is provided at the other end; one end of the first connecting pipe (220) is connected to the grouting pipe joint (200), and a second connecting pipe (230) is provided at the other end; the outer surface of the second connecting pipe (230) is a conical surface; and an annular anti-slip boss evenly distributed along the axial direction is provided on the outer surface of the second connecting pipe (230); One end of the spin-on cover (400) is provided with a stepped hole and is sleeved on the grouting pipe joint (200); one end of the grouting pipe joint (200) is inserted into the connection cavity of the connector body (100); the spin-on cover (400) and the connector body (100) are threadedly matched at one end of the connection cavity; a first sealing ring (300) is provided between one end of the grouting pipe joint (200) and the bottom of the connection cavity; The first connecting tube (220) is provided with a thread on its outer surface; the anti-retraction sleeve (500) is sleeved on the first connecting tube (220); one end of the anti-retraction sleeve (500) is threadedly matched with the first connecting tube (220); the other end is an extrusion tube (520); the inner wall of the extrusion tube (520) is an extrusion cone surface.

2. The quick grouting pipe joint according to claim 1, characterized in that: The outer diameter of the first connecting pipe (220) is smaller than the outer diameter of the grouting pipe joint (200); and a second sealing ring (600) is provided between one end of the grouting pipe joint (200) and the stop sleeve (500).

3. The quick grouting pipe joint according to claim 2, characterized in that: A connecting thread (510) is provided at a middle position of the outer surface of the anti-retraction sleeve (500).

4. The quick grouting pipe joint according to claim 1, characterized in that: The connector body (100), the grouting pipe joint (200), the spin-on cover (400) and the stop sleeve (500) are all made of stainless steel.

5. The quick grouting pipe joint according to claim 1, characterized in that: The connector body (100) is provided with a handle (110).

6. The quick grouting pipe joint according to claim 1, characterized in that: The outer surface of the spin-on cover (400) and the outer surface of one end of the stop sleeve (500) are both provided with axial anti-slip bosses.

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