Novel universal joint

Abstract

The utility model relates to the field of hardware fittings, and discloses a novel universal joint which comprises a shell, one end of the shell is fixedly connected with a fixed pipe, a movable pipe is arranged in the shell, a sealing piece is arranged between one end of the movable pipe and the fixed pipe, the other end of the movable pipe is fixedly connected with a connecting piece used for being connected with equipment, and two ball bearings are installed on the outer side of the movable pipe. A first annular groove is formed in the outer side of the end, close to the fixed pipe, of the movable pipe, a second annular groove is formed in the inner wall of the end, away from the fixed pipe, of the shell, and clamping rings used for positioning the ball bearings are installed in the first annular groove and the second annular groove correspondingly. The spring and the sealing piece are installed in the shell, after the ball bearing and the rubber pad are installed on the outer side of the movable pipe, the clamping ring is clamped in the first annular groove, the sealing ring is arranged at the end of the movable pipe in a sleeved mode, then the movable pipe can be installed in the shell, the clamping ring is clamped in the second annular groove, product assembling is completed, convenience and rapidness are achieved, and the production rate is increased.

Description

TECHNICAL FIELD

[0001] The utility model relates to hardware fitting field, concretely is a novel universal head. BACKGROUND

[0002] Tower crane spraying universal head, that is, tower crane spraying universal rotating joint, is an important component in a tower crane spraying dust-settling system. The tower crane spraying universal head is a joint capable of rotating 360 degrees, which is connected between the vertical water supply pipe and the horizontal water supply pipe of the tower crane, so that the water spraying system can perform omnidirectional and zero-angle mist water spraying within the rotating range of the tower crane.

[0003] The existing universal head can realize 360-degree rotation, but is inconvenient to assemble and has low production rate during production, and needs to be improved. UTILITY MODEL CONTENTS

[0004] The technical problem to be solved by the utility model is that the existing tower crane spraying universal head is inconvenient to assemble and has low production rate.

[0005] In order to solve the above problems, the technical scheme of the utility model is as follows: a novel universal head, comprising a shell, one end of the shell is fixedly connected with a fixed pipe, an inner part of the shell is provided with a movable pipe, a sealing element is arranged between one end of the movable pipe and the fixed pipe, the other end of the movable pipe is fixedly connected with a connecting element for connecting equipment, two ball bearings are installed on the outer side of the movable pipe, a ring-shaped groove one is formed on the outer side of the end of the movable pipe close to the fixed pipe, a ring-shaped groove two is formed on the inner wall of the end of the shell away from the fixed pipe, and a clamping ring for positioning the ball bearings is installed in the ring-shaped groove one and the ring-shaped groove two.

[0006] Further, the shell and the fixed pipe are integrally formed, and the outer side of the fixed pipe is provided with threads.

[0007] Further, the sealing element comprises a ring-shaped limiting sheet, one side of the limiting sheet is fixedly connected with a circular pipe, and the outer wall of the circular pipe abuts against the inner wall of the fixed pipe.

[0008] Further, a plurality of installation grooves are formed on the inner side of the shell close to the fixed pipe, the installation grooves are arranged in a ring shape, and springs are installed in the installation grooves.

[0009] Further, a sealing ring is arranged between the movable pipe and the sealing element, and a clamping groove matched with the movable pipe is formed on one side of the sealing ring.

[0010] Further, a rubber pad is sleeved between the two ball bearings on the outer side of the movable pipe.

[0011] Further, a threaded hole is formed through the position of the rubber pad on the side surface of the shell, and a tight bolt is installed in the threaded hole.

[0012] Further, the snap ring is a C-shaped snap ring.

[0013] The utility model discloses compared with prior art has the advantages in that: the utility model discloses install spring and sealing element in the casing, install ball bearing and rubber pad on the movable pipe outside after, and the movable pipe is installed in the casing interior in the annular groove one and connects the snap ring, and the sealing ring is equipped with in movable pipe end portion, can the movable pipe is installed in the casing interior, and the annular groove two and connect the snap ring and complete product's assembly, convenient and fast, improve production rate. BRIEF DESCRIPTION OF DRAWINGS

[0014] Fig. 1 It is the perspective view of the utility model.

[0015] Fig. 2 It is the sectional view of the utility model.

[0016] As shown in the figure: 1, casing;2, fixed pipe;3, movable pipe;4, sealing element;4.1, limit piece;4.2, circular tube;5, connecting piece;6, ball bearing;7, snap ring;8, spring;9, sealing ring;10, rubber pad;11, tight bolt. DETAILED DESCRIPTION

[0017] The technical scheme in the embodiments of the utility model will be apparently and completely described below in conjunction with the drawings in the embodiments of the utility model, and 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 other embodiments obtained by the person skilled in the art without making creative efforts fall within the protection scope of the utility model.

[0018] As Figs. 1-2 Shown, a new type of universal head, including casing 1, casing 1 one end fixedly connected with fixed pipe 2, inside is equipped with movable pipe 3, casing 1 and fixed pipe 2 are integrally formed, and the outside of fixed pipe 2 is equipped with screw threads, and the sealing element 4 is arranged between the one end of movable pipe 3 and fixed pipe 2, and the other end is fixedly connected with connecting piece 5 for connecting equipment, sealing element 4 includes annular limit piece 4.1, limit piece 4.1 one side is fixedly connected with circular tube 4.2, and the outer wall of circular tube 4.2 abuts on the inner wall of fixed pipe 2.

[0019] The inside of casing 1 is equipped with a plurality of installation grooves on one side close to fixed pipe 2, and the plurality of installation grooves are annularly arranged, and the spring 8 is installed in the installation groove, and the sealing ring 9 is arranged between movable pipe 3 and sealing element 4, and the clamping groove that is adapted to movable pipe 3 is formed in one side of sealing ring 9.

[0020] The sealing property between movable pipe 3 and casing 1 can be improved by sealing element 4 cooperating with sealing ring 9, and the sealing element 4, sealing ring 9 and movable pipe 3 can be in the state of being pressed by the setting of spring 8, to further improve the sealing property.

[0021] Two ball bearings 6 are mounted on the outer side of the movable pipe 3, and a rubber pad 10 is sleeved between the two ball bearings 6 on the outer side of the movable pipe 3, threaded holes are formed on the side of the shell 1 at the position of the rubber pad 10, and a clamping bolt 11 is mounted in the threaded hole, an annular groove one is formed on the outer side of the movable pipe 3 close to one end of the fixed pipe 2, an annular groove two is formed on the inner wall of the shell 1 away from one end of the fixed pipe 2, and C-shaped clamping rings 7 for positioning the ball bearings 6 are mounted in the annular groove one and the annular groove two.

[0022] The connecting piece 5 is connected with the horizontal pipeline, when the angle of spraying needs to be adjusted, the connecting piece 5 can drive the movable pipe 3 to rotate 360 degrees in the shell 1, so that omnidirectional spraying can be realized, when the angle does not need to be adjusted, the clamping bolt 11 is tightened to press the rubber pad 10 tightly on the outer side of the movable pipe 3, so that the movable pipe 3 and the horizontal pipeline are fixed.

[0023] In specific use, when the product is assembled, the spring 8 is installed in the installation groove, the sealing element 4 is installed, the two ball bearings 6 and the rubber pad 10 are installed on the outer side of the movable pipe 3, one C-shaped clamping ring 7 is clamped in the annular groove one, and the sealing ring 9 is sleeved on the end of the movable pipe 3, so that the movable pipe 3 can be installed in the shell 1, and finally the C-shaped clamping ring 7 is clamped in the annular groove two, so that the assembly of the product is completed, which is convenient and fast.

[0024] The parts not disclosed in the utility model are prior art, and the specific structure and working principle will not be described again.

[0025] It should be noted that, in this document, relational terms such as first and second and the like can be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Moreover, the terms "comprises", "comprising", or any other variations thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but can include other elements not expressly listed or inherent to such process, method, article, or apparatus.

[0026] Although embodiments of the utility model have been shown and described, it will be understood by those having ordinary skill in the art that various changes, modifications, alternatives, and variations can be made thereto without departing from the principles and spirit of the utility model, and the scope of the utility model is defined by the appended claims and their equivalents.

[0027] The above has described the utility model and its implementation mode, which is not restrictive, and the drawings only show one of the implementation modes of the utility model, and the actual structure is not limited thereto. In summary, if a person skilled in the art is inspired thereby, without departing from the creative purpose of the utility model, similar structural modes and embodiments are not creatively designed, which should belong to the protection scope of the utility model.

Claims

1. A novel universal joint, comprising a housing (1), characterized in that: One end of the housing (1) is fixedly connected to a fixed tube (2), and a movable tube (3) is provided inside. A sealing element (4) is provided between one end of the movable tube (3) and the fixed tube (2), and a connector (5) for connecting equipment is fixedly connected to the other end. Two ball bearings (6) are installed on the outside of the movable tube (3). An annular groove 1 is opened on the outside of the movable tube (3) near the fixed tube (2), and an annular groove 2 is opened on the inner wall of the housing (1) away from the fixed tube (2). A retaining ring (7) for positioning the ball bearings (6) is installed inside both the annular groove 1 and the annular groove 2.

2. The novel universal joint according to claim 1, characterized in that: The housing (1) and the fixing tube (2) are integrally formed, and the outside of the fixing tube (2) is threaded.

3. The novel universal joint according to claim 1, characterized in that: The sealing element (4) includes an annular limiting piece (4.1), and a round tube (4.2) is fixedly connected to one side of the limiting piece (4.1). The outer wall of the round tube (4.2) abuts against the inner wall of the fixed tube (2).

4. A novel universal joint according to claim 3, characterized in that: The housing (1) has multiple mounting slots on the side near the fixed tube (2) inside. The multiple mounting slots are arranged in a ring array and a spring (8) is installed in the mounting slot.

5. A novel universal joint according to claim 3, characterized in that: A sealing ring (9) is provided between the movable tube (3) and the sealing element (4), and a groove adapted to the movable tube (3) is provided on one side of the sealing ring (9).

6. A novel universal joint according to claim 1, characterized in that: A rubber pad (10) is fitted on the outside of the movable tube (3) between the two ball bearings (6).

7. A novel universal joint according to claim 6, characterized in that: A threaded hole is provided on the side of the housing (1) at the position of the rubber pad (10), and a set bolt (11) is installed in the threaded hole.

8. A novel universal joint according to claim 1, characterized in that: The retaining ring (7) is a C-type retaining ring.

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