JP3034408U - Air piping joint - Google Patents

Abstract

(57) Abstract: [PROBLEMS] To provide an air pipe joint that can rotate at the joint portion by improving the drawback that the gap between the conventional pipe joints is easily dropped and leaks. SOLUTION: The structure of the air pipe joint of the present invention is such that the connecting pipe 61 at one end of the rotary joint 6 is inserted into the air-filled end of the control sleeve 1, and the recess 612 at the inner edge of the outer end of the connecting pipe 61 is made air. An annular groove 611 positioned at the connecting end of one end of the moving valve 5 at the outlet joint and at the outer end of the inner end of the connecting pipe 61 at one end of the rotary joint 6 and an annular groove at the inner edge of the air inlet end of the control sleeve 1. 13 are fitted with several steel balls 15 and the rotary joint 6 and the control sleeve 1 can rotate relative to each other, whereby the air hose of the compressed air tool and the connecting end of the joint are pulled. This avoids bending and affecting the air flow, and at the same time reduces the loss of the rotary joint 6 and compressor joint from being pulled by the air hose.

Description

[Detailed description of the invention]

[0001]

[Technical field to which the invention belongs]

 The present invention relates to a joint for air piping.

[0002]

[Prior art]

 Rapid joints for air piping, which are commonly used today, are members frequently used in the industry, and they are connected to the piping from the compressor and connected to the compressed air tool to transfer compressed air to the compressed air tool. Then, the purpose of use is achieved.

[0003]

[Problems to be solved by the device]

 However, a general rapid joint is as shown in Fig. 1, and its air inlet end is connected to the joint of the air pipe of the compressor, and its air outlet end is connected to the air inlet end of the compressed air tool. Therefore, an inner thread A11 is formed on the inner edge of the pneumatic joint A1 of the rapid joint A, which is used for screwing with the outer thread A21 protruding from one end of the rotary joint A2. The other end of A2 is provided with an internal screw A22 which is used for screwing with the joint in the air pipe of the compressor. The rapid joint A and the joint in the air pipe of the compressor are screwed together. Since the general compressed air tool changes its location according to the needs of the construction, the air hose is bent at the connecting end of the rapid joint A of the air pipe as the compressed air tool moves. That affects how air goes out and Sometimes the rapid joint A is immovable, so it is pulled by the air hose, and the pipe joint between the pneumatic joint A1 and the rotary joint A2, the rotary joint A2 and the air pipe of the compressor is easily dropped and leaks easily. Such defects should be remedied.

Therefore, the inventor of the present invention, in view of the drawbacks existing in the above-mentioned rapid joints, and utilizing his experience in various manufacturing and research and development, can actively research and improve, and finally produce the present invention. It was An object of the present invention is to improve the above-mentioned drawbacks and to provide an air pipe joint which can rotate at the joint portion.

[0005]

[Means for Solving the Problems]

 In the structure of the air pipe joint of the present invention, the connecting pipe at one end of the rotary joint is put in the air-filled end of the control sleeve, and the concave portion at the inner edge of the outer end of the connecting pipe is provided at one end of the moving valve at the air outlet joint. The ring groove on the inner and outer edges of the connecting tube located at the connecting end and on one end of the rotary joint and the ring groove on the inner edge of the pneumatic end of the control sleeve are aligned and several steel balls are inserted. , Furthermore, the rotary joint and the control sleeve can rotate relative to each other, which avoids pulling the connecting end of the air hose of the compressed air tool and the joint, bending and affecting the air flow, at the same time. It reduces the loss of the joint of the rotary joint and the compressor caused by pulling the air hose.

[0006]

[Embodiment of the invention]

 Hereinafter, embodiments of the present invention will be described with reference to the drawings. As shown in FIGS. 2 and 3, the air piping joint of the present invention is mainly provided with a control sleeve 1 having several steel balls 11 inside the air outlet end and is provided at the front end of the outer ring. An E-type snap ring 12 is used to fit and fix the connecting pipe 2, and a compression spring 3 is installed at the rear stage of the inner hole of the connecting pipe 2, and an air joint 4 is incorporated in the control sleeve 1. A strong spring 41 for pressing the moving valve 5 is provided at one end of the air outlet joint 4, and a receiving stage 51 is provided at one end of the moving valve 5. The characteristic is that an annular groove 13 is provided on the inner edge of the air inlet end of the control sleeve 1, and a threaded hole 14 is provided in the tubular body of the control sleeve 1 in the annular groove 13, and at one end of the rotary joint 6. The connecting pipe 61 is provided in a convex shape, an annular groove 611 is provided in the outer edge of the inner end of the connecting pipe 61, and a recess 612 is provided in the inner edge of the outer end of the connecting pipe 61. Since the inner thread 62 is provided on the inner edge of the other end of the rotary joint 6, when the connecting pipe 61 at one end of the rotary joint 6 is inserted into the pneumatic end of the control sleeve 1, the outer end of the connecting pipe 61 is inserted. The concave portion at the inner edge is located at the stop position of the receiving stage 51 at one end of the moving valve 5 at the air outlet joint 4, and the ring groove 611 at the outer edge of the inner end of the connecting pipe 61 at the one end of the rotary joint 6 is controlled. A few steel balls 15 are placed in alignment with the annular groove 13 on the inner edge of the air inlet end of the tube 1 and further screwed into the threaded hole 14 in the tube body of the control sleeve 1 by means of a set screw 16. Restrains the steel ball 15 so that the rotary joint 6 and the control sleeve 1 are articulated and can rotate with respect to each other.

Therefore, as shown in FIG. 4, when the air inlet joint 7 of the compressed air tool is pressed and the air outlet joint 4 is pushed in from the outside, the steel ball 11 in the control sleeve 1 is placed inside. After being inserted into the air-injection joint 7, the connecting pipe 2 is returned by receiving the thrust of the compression spring 3, so that the steel ball 11 is pushed inward and protrudes, and the air-injection joint 7 It is fitted into the fitting groove 71 to be connected and positioned, and the inner screw 62 at the other end of the rotary joint 6 is fastened to the fitting of the air pipe of the compressor (not shown in the drawing). When the compressed air tool changes its location according to the need of construction, the air hose is moved along with the compressed air tool, and the air inlet 7 of the air hose is integrally connected with the control sleeve 1, When it moves with the movement, it can rotate corresponding to the rotary joint 6, which pulls the connecting end of the air hose of the compressed air tool and the rapid joint, and bends to affect the air flow. And at the same time reduce the possibility that the air hose is pulled and the rotary joint 6 and the joint of the compressor fall off.

[Brief description of the drawings]

FIG. 1 is an exploded view of a conventional rapid joint.

FIG. 2 is an exploded view of the embodiment of the present invention.

FIG. 3 is a combined sectional view of an embodiment of the present invention.

FIG. 4 is a combined sectional view of the embodiment of the present invention in use.

[Explanation of symbols]

 1 Control sleeve 11 Steel ball 12 E-type snap ring 13 Annular groove 14 Screw hole 15 Steel ball 16 Set screw 2 Connecting pipe 3 Compression spring 4 Air outlet joint 41 Spring 5 Moving valve 51 Receiving stage 6 Rotating joint 61 Connecting pipe 611 Annular groove 612 Recessed portion 62 Inner screw 7 Pneumatic fitting

Claims (1)

[Utility model registration claims] 1. A control sleeve having several steel balls is provided inside the air outlet end, and is fixed to the connecting pipe by an E-type snap ring provided at the front end of the outer ring, and A compression spring is installed in the latter part of the inner hole of the connecting pipe, an air outlet joint is built in the control sleeve, and a strong spring that presses the moving valve is installed at one end of the air outlet joint, and the air inlet end of the control sleeve is installed. A ring groove is provided on the inner edge of the control sleeve, and a threaded hole is provided on the tube body of the control sleeve in the ring groove.A connecting pipe is projected at one end of the rotary joint, and an outer edge of the inner end of the connecting pipe is provided. Has a ring groove, and a concave portion is formed on the inner edge of the outer end of the connecting pipe, and an inner thread is provided on the inner edge of the other end of the rotary joint. When inserted into the pneumatic end of the control sleeve, the recess on the inner edge of the outer end of the connecting tube The ring groove on the inner and outer edges of the connecting pipe at the receiving stage at one end of the moving valve on the air outlet joint and positioned on the one end of the rotary joint matches the ring groove on the inner edge of the air inlet end of the control sleeve. And set several steel balls in place, and then tighten the screw into the threaded hole in the tube of the control sleeve by the set screw to restrain the steel ball, which positions the rotary joint and the control sleeve in an articulated position. And a joint for air piping, which is capable of rotating with each other.