Pipe joint and pipe body cleaning device

Abstract

The pipe joint and pipe body cleaning device is used for being connected to the end of a pipe body and comprises a first port capable of being arranged at the end of the pipe body in a sleeved mode, a plurality of first telescopic rods capable of stretching out and drawing back in the radial direction relative to the pipe body are arranged in the circumferential direction of the first port, and one end of each first telescopic rod is in radial sliding connection with the first port. And the other end is controlled by a telescopic control mechanism to be close to or far away from the pipe body. The telescopic rod is controlled by the telescopic control mechanism to clamp and fix the pipe body, so that the pipe body is convenient to connect, the powder pipe cleaning efficiency is improved, the cleaning quality is ensured, staff operation is convenient, and the firmness and the stability of cleaning connection are enhanced.

Description

Technical Field

[0001] The utility model relates to the technical field of pipelines, in particular to a pipe joint and a pipe cleaning device. Background Art

[0002] Powder hose cleaning is crucial for ensuring the proper functioning of powder conveying systems. Currently, air purging is commonly used: a high-pressure air gun is inserted into the powder hose, blowing compressed air into the hose to remove powder and impurities. However, the lack of a tight connection between the air gun and the hose results in a loss of cleaning power, compromising cleaning effectiveness. Furthermore, existing quick-connect connectors cannot securely clamp the hose without a clip. Utility Model Content

[0003] In order to solve the problem of connecting the pipe joint with the buckleless plain pipe, the utility model proposes a pipe joint and a pipe cleaning device, which uses a telescopic control mechanism to control the telescopic rod to clamp and fix the pipe body, which is firm and easy to use.

[0004] The technical solution adopted by the present invention is to design a pipe joint for connecting to the end of a pipe body, including a first port that can be sleeved on the end of the pipe body, and a plurality of first telescopic rods that can be radially telescopic relative to the pipe body are arranged around the first port. One end of the first telescopic rod is radially slidably connected to the first port, and the other end is controlled by a telescopic control mechanism to move closer to or farther away from the pipe body.

[0005] In some embodiments, the telescopic control mechanism includes a rocker arm and a top rod, the middle part of the rocker arm is rotatably connected to the first port, one end of the rocker arm is rotatably connected to the first telescopic rod, and the other end of the rocker arm is rotatably connected to the top rod, a through hole for the top rod to slide is provided on the side wall of the first port, and a first return spring is supported between the first telescopic rod and the side wall of the first port.

[0006] In some embodiments, a pressing block for pressing the tube body is provided at the end of the first telescopic rod.

[0007] In certain embodiments, the pressing block has a first guiding slope facing the outside of the first port.

[0008] In certain embodiments, the end surface of the pressing block facing the inner side of the first port has a groove for locking the stepped portion of the expanded tube body.

[0009] In some embodiments, the first port is connected to a positioning cavity for inserting the tube body port, and the positioning cavity is circumferentially provided with several second telescopic rods that can be extended and retracted relative to the tube body, the second telescopic rods are radially slidably engaged with the side wall of the positioning cavity, a second return spring is supported between the second telescopic rod and the side wall of the positioning cavity, the side wall of the positioning cavity is provided with a second sliding hole that slides with the second telescopic rod, the end of the second telescopic rod is provided with a pressure plate that presses the tube body, and the pressure plate is provided with a second guide slope corresponding to the end of the tube body.

[0010] In some embodiments, a plurality of the second telescopic rods are arranged in the axial direction.

[0011] In certain embodiments, the pipe joint is provided with a second port communicating with the pipe body port, and the second port is provided with a thread.

[0012] A pipe cleaning device comprises the pipe joint.

[0013] In certain embodiments, a high-pressure air pipe is included that is connected to the pipe joint, a side wall of the high-pressure air pipe is connected to a dry ice input pipe, and the high-pressure air pipe is connected to the pipe joint via an insulation pipe.

[0014] Compared with the prior art, the present invention has the following beneficial effects:

[0015] The utility model utilizes the telescopic control mechanism to control the telescopic rod to clamp and fix the tube body, which is convenient for connecting the tube body, improves the cleaning efficiency of the powder tube, ensures the cleaning quality, is convenient for employees to operate, and enhances the firmness and stability of the cleaning connection. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] The present invention is described in detail below with reference to specific embodiments and accompanying drawings. To illustrate details and facilitate understanding of its principles, the drawings are not necessarily drawn to scale, and similar reference numerals may describe similar components in different views. The accompanying drawings generally illustrate the embodiments discussed herein by way of example and not limitation. Among them:

[0017] Figure 1 Schematic diagram of a pipe joint according to an embodiment.

[0018] Figure 2 yes Figure 1 Enlarged schematic diagram of point A in the middle.

[0019] In the figure, 1. tube body; 2. first port; 3. first telescopic rod; 4. rocker arm; 5. push rod; 6. middle axis hinge; 7. first return spring; 8. first sliding hole; 9. pressure block; 10. first guide slope; 11. slot; 12. positioning cavity; 13. second telescopic rod; 14. second return spring; 15. second sliding hole; 16. pressure plate; 17. thread; 18. high-pressure gas pipe; 19. dry ice input pipe; 20. insulation pipe; 21. second port. DETAILED DESCRIPTION

[0020] The following are specific embodiments of the present invention, and the technical solutions of the present invention are further described in conjunction with the accompanying drawings. However, the present invention is not limited to these embodiments, and the following embodiments do not limit the utility model involved in the claims. In addition, not all combinations of features described in the embodiments are necessarily required for the solution of the utility model.

[0021] The principle and structure of the present invention are described in detail below with reference to the accompanying drawings and embodiments.

[0022] Example

[0023] Powder hose cleaning is crucial for ensuring the proper functioning of powder conveying systems. Currently, air purging is performed using a high-pressure air gun inserted into the powder hose, blowing compressed air into the hose to remove powder and impurities. However, the lack of a tight connection between the air gun and the hose results in a loss of cleaning power, compromising cleaning effectiveness. Furthermore, existing quick-connect connectors cannot securely clamp the hose without a clip.

[0024] For this reason, Figure 1 、 2 As shown, a pipe joint is provided for connecting to the end of a pipe body 1. It includes a first port 2 that can be inserted into the end of the pipe body 1. The first port 2 is circumferentially provided with several first telescopic rods 3 that can be radially extended and retracted relative to the pipe body 1. One end of the first telescopic rod 3 is radially slidably connected to the first port 2, and the other end is controlled by a telescopic control mechanism to move closer or farther away from the pipe body 1. In this embodiment, the pipe body 1 is a powder hose for conveying powder, and one end of the inner cavity of the pipe joint is the first port 2.

[0025] The technical effect of the above design is that the telescopic control mechanism controls the approach or distance relative to the tube body 1, thereby achieving the clamping or loosening of the tube body 1 by the first telescopic rod 3, thereby conveniently connecting the pipe joint to the tube body 1. By utilizing the top pressure friction between the telescopic rod and the tube body 1, the connection between the pipe joint and the tube body 1 can be achieved without a snap-fit ​​structure.

[0026] The telescopic control mechanism includes a rocker arm 4 and a push rod 5. The middle portion of the rocker arm 4 is pivotally connected to the first port 2 via a central axis hinge 6. One end of the rocker arm 4 is pivotally connected to the middle portion of the first telescopic rod 3, and the other end of the rocker arm 4 is pivotally connected to the end of the push rod 5. A through hole is provided on the side wall of the first port 2 for the push rod 5 to slide through, allowing the push rod 5 to pass through the side wall of the first port 2, thereby facilitating external control of its extension and retraction. A first return spring 7 is supported between the first telescopic rod 3 and the side wall of the first port 2. A first sliding hole 8 is provided on the side wall of the first port 2, which slidably engages with the end of the first telescopic rod 3, allowing the first telescopic rod 3 to slide radially relative to the first port 2. The first return spring 7 is a stud spring that is sleeved on the first telescopic rod 3.

[0027] The technical effect of the above design is that the rocker arm 4 acts as a lever, pressing the push rod 5 inward in the external radial direction, so that the rocker arm 4 rotates around the central axis hinge 6, thereby causing the first telescopic rod 3 to overcome the elastic force of the first return spring 7 and move in a direction away from the central axis, thereby facilitating the insertion or removal of the tube body 1 from the first port 2. When the push rod 5 is released, the first telescopic rod 3 is pressed against the tube body 1 under the action of the return spring, thereby achieving fixation relative to the tube body 1.

[0028] A pressing block 9 for pressing the tube body 1 is provided at the end of the first telescopic rod 3 .

[0029] The technical effect of adopting the above design is that the pressing block 9 increases the contact area between the first telescopic rod 3 and the tube body 1, thereby increasing the friction force and being more conducive to relative fixed connection.

[0030] The pressing block 9 has a first guiding inclined surface 10 facing the outside of the first port 2 .

[0031] The technical effect of the above design is that the first guide slopes 10 of the pressure blocks 9 on the first telescopic rods 3 are equivalent to forming a bell mouth. When the tube body 1 is inserted into the first port 2, the end of the tube body 1 presses against the first guide slope 10, causing the first telescopic rod 3 to retract against the force of the first return spring 7, thereby allowing the tube body 1 to extend between the pressure blocks 9, thereby achieving fixation.

[0032] The end surface of the pressing block 9 facing the inner side of the first port 2 has a clamping groove 11 for clamping the stepped portion of the expanded tube body 1 .

[0033] The technical effect of adopting the above design is: for some ports of the flared tube body 1, the flared section of which has a stepped portion, a groove 11 is provided on the pressing block 9 to lock the stepped portion of the flared tube body 1, so that the tube body 1 is axially locked by the groove 11 of the pressing block 9, thereby making the connection between the tube body 1 and the pipe joint more secure.

[0034] The first port 2 is connected to a positioning cavity 12 for inserting the end of the tube body 1. The positioning cavity 12 is circumferentially provided with several second telescopic rods 13 that can extend and retract relative to the tube body 1. The second telescopic rods 13 radially slide in engagement with the sidewalls of the positioning cavity 12. A second return spring 14 is supported between the second telescopic rods 13 and the sidewalls of the positioning cavity 12. The sidewalls of the positioning cavity 12 are provided with second sliding holes 15 that slide in engagement with the second telescopic rods 13. A pressure plate 16 is provided at the end of the second telescopic rod 13 to press against the tube body 1. The pressure plate 16 is provided with a second guide slope corresponding to the end of the tube body 1. The second guide slope is equidistant from the first guide slope 10, facilitating insertion of the tube body 1. The first port 2 and the positioning cavity 12 are coaxial, forming a stepped hole structure. The second return spring 14 is a stud spring that sleeves over the second telescopic rod 13.

[0035] The technical effect of the above design is that the second telescopic rod 13 and the pressure plate 16 press against the pipe body 1 under the action of the second return spring 14, thereby further improving the firmness of the connection between the pipe joint and the pipe body 1. The contact area between the pressure plate 16 and the pipe body 1 is large, which can provide greater friction.

[0036] A plurality of second telescopic rods 13 are arranged in the axial direction.

[0037] The technical effect of adopting the above design is that a plurality of the second telescopic rods 13 are provided in the axial direction, which can further increase the pressing force of the pressing plate 16 at each position in the axial direction on the speed tube body 1 and provide greater friction.

[0038] The pipe joint is provided with a second port 21 communicating with a port of the pipe body 1 , and the second port 21 is provided with a thread 17 .

[0039] The technical effect of adopting the above design is that the second port 21 can be easily connected to other pipelines through the thread 17 provided thereon.

[0040] For example, the second port 21 of this embodiment is used to connect to a high-pressure air gun serving as a cleaning device for the tube body 1 , so that compressed air can be pumped into the powder hose through the pipe joint to clean the powder hose.

[0041] The pipe body 1 cleaning device further includes a high-pressure air pipe 18 connected to the pipe joint, a side wall of the high-pressure air pipe 18 is connected to a dry ice input pipe 19 , and the high-pressure air pipe 18 is connected to the pipe joint via an insulation pipe 20 .

[0042] The technical effect of the above design is that the dry ice inlet pipe 19 is used to supply dry ice to the high-pressure gas pipe 18, so that the high-pressure gas carries the dry ice into the powder hose, thereby improving the cleaning effect. The insulation pipe 20 helps to keep the dry ice warm before entering the powder hose.

[0043] The specific embodiments described herein are merely illustrative of the spirit of the present invention. Persons skilled in the art may make various modifications, additions, or substitutions to the described specific embodiments without departing from the spirit of the present invention or exceeding the scope defined by the appended claims.

[0044] Although some terms are used more frequently in this article, the possibility of using other terms is not excluded. These terms are used only to more conveniently describe and explain the essence of the present invention; interpreting them as any additional restrictions is contrary to the spirit of the present invention. The execution order of actions, steps, etc. in the devices and methods shown in the specification and drawings can be implemented in any order as long as there is no special explicit limitation on the order, and as long as the output of the previous processing is not used in the subsequent processing. Similar sequential terms (for example, "first", "next", "secondly", "again", "then", etc.) used for the convenience of description do not mean that they must be implemented in such an order.

[0045] Those skilled in the art should understand that all directional references (for example, above, below, upward, up, downward, down, top, bottom, left, right, vertical, horizontal, etc.) are used descriptively in the drawings to facilitate the reader's understanding, and do not represent limitations (for example, on position, orientation or use, etc.) on the scope of the invention as defined by the appended claims. They are only for the convenience of describing the present application and simplifying the description. Unless otherwise specified, these directional words do not indicate or imply that the device or element referred to must have a specific orientation or be constructed and operated in a specific orientation. The directional words "inside" and "outside" refer to the inside and outside relative to the outline of each component itself.

[0046] For ease of description, spatially relative terms such as "above", "above", "on the upper surface of", "above", etc. may be used herein to describe the spatial positional relationship of a device or feature to other devices or features as shown in the figures. It should be understood that spatially relative terms are intended to include different orientations of the device in use or operation in addition to the orientation described in the figures. For example, if the device in the drawings is inverted, the device described as "above other devices or structures" or "above other devices or structures" will be positioned as "below other devices or structures" or "below other devices or structures". Thus, the exemplary term "above" can include both "above" and "below". The device can also be positioned in other different ways (rotated 90 degrees or in other orientations), and the spatially relative descriptions used here are interpreted accordingly.

[0047] In addition, some vague terms (e.g., substantially, certain, approximately, etc.) may refer to slight imprecision or slight deviation of conditions, quantities, values, or dimensions, some of which are within manufacturing variations or tolerances. It should be noted that the use of terms such as "first" and "second" to define components is merely for the purpose of distinguishing the corresponding components. Unless otherwise stated, these terms have no special meanings and should not be construed as limiting the scope of protection of this application.

Claims

1. A pipe joint, when connected to the end of a pipe body, comprising a first port that can be sleeved on the end of the pipe body, characterized in that: The first port is circumferentially provided with a plurality of first telescopic rods that can be radially telescoped relative to the tube body. One end of the first telescopic rod is radially slidably connected to the first port, and the other end is controlled by a telescopic control mechanism to move closer to or farther from the tube body.

2. The pipe joint according to claim 1, wherein: The telescopic control mechanism includes a rocker rod and a push rod. The middle part of the rocker rod is rotatably connected to the first port, one end of the rocker rod is rotatably connected to the first telescopic rod, and the other end of the rocker rod is rotatably connected to the push rod. A through hole for sliding the push rod is provided on the side wall of the first port, and a first return spring is supported between the first telescopic rod and the side wall of the first port.

3. The pipe joint according to claim 1, wherein: A pressing block for pressing the tube body is provided at the end of the first telescopic rod.

4. The pipe joint according to claim 3, wherein: The pressing block has a first guiding inclined surface facing the outside of the first port.

5. The pipe joint according to claim 3, wherein: The end surface of the pressing block facing the inner side of the first port has a clamping groove for clamping the stepped portion of the expanded tube body.

6. The pipe joint according to claim 1, wherein: The first port is connected to a positioning cavity for inserting the tube body port, and several second telescopic rods that can be extended and retracted relative to the tube body are arranged circumferentially of the positioning cavity, and the second telescopic rods are radially slidably engaged with the side wall of the positioning cavity, and a second return spring is supported between the second telescopic rod and the side wall of the positioning cavity, and the side wall of the positioning cavity is provided with a second sliding hole that slides with the second telescopic rod, and the end of the second telescopic rod is provided with a pressure plate that presses the tube body, and the pressure plate is provided with a second guide inclined surface corresponding to the end of the tube body.

7. The pipe joint according to claim 6, wherein: A plurality of second telescopic rods are arranged in the axial direction.

8. The pipe joint according to claim 7, wherein: The pipe joint is provided with a second port communicating with the pipe body port, and the second port is provided with a thread.

9. A pipe cleaning device, characterized in that: The pipe joint comprises the pipe joint according to any one of claims 1 to 8.

10. The pipe cleaning device according to claim 9, characterized in that: It comprises a high-pressure air pipe connected to the pipe joint, the side wall of the high-pressure air pipe is connected to the dry ice input pipe, and the high-pressure air pipe and the pipe joint are connected through an insulation pipe.

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