Pipe fitting gland press-fitting device

Abstract

The present application discloses a device for pressing and installing a cap for a pipe fitting, which aims to solve the technical problem of low efficiency in manually installing the cap. It includes a frame, a positioning plate fixed relative to the frame and arranged horizontally for limiting the pipe fitting to be capped, a pressure rod perpendicular to the positioning plate and arranged on the square of the positioning plate and fixed relative to the frame, a pressure plate arranged at the bottom end of the piston of the pressure rod and parallel to the positioning plate, and a limiting assembly for controlling the stroke of the pressure plate at the end of the pressure rod; the positioning plate is provided with a U-shaped positioning groove whose inner edge contour matches the corresponding outer edge contour of the pipe fitting to be capped. The pressing device has the advantages of high pressing efficiency and safe and reliable pressing process.

Description

Technical Field

[0001] The present application relates to the technical field of water supply and drainage, and in particular to a pipe gland press-fitting device. Background Art

[0002] Flexible socket connection is a connection method that uses rubber or other flexible materials as pipe joints. It is done by placing an elastic rubber ring on the stop seal of the pipe socket, and then applying force to insert the pipe plug end to form a closed pipe that can adapt to displacement and vibration within a certain range, thereby reducing leakage or damage caused by pipe deformation or vibration. This connection method is simple and convenient, can adapt to various complex construction environments, and effectively shorten the installation period.

[0003] The inventor knows a fixed gland pipe fitting product, which fixes the rubber ring at the socket end of the pipe fitting by pressing the gland at the end of the pipe fitting, thereby ensuring the sealing effect of the rubber ring when in use. When installing the pipe, it is only necessary to directly insert the pipe into the socket end of the pipe fitting, which can further improve the efficiency of docking installation between pipe fittings and pipes on the basis of ensuring the reliability of the connection. However, the gland at the socket of the pipe fitting needs to be assembled before leaving the factory. The existing assembly method is to achieve the installation purpose by manually knocking with a rubber hammer. The installation process is inefficient and requires a lot of manpower.

[0004] The information disclosed in this background technology section is only used to deepen the understanding of the background technology of the present disclosure, and should not be regarded as acknowledging or suggesting in any form that the information constitutes the prior art known to those skilled in the art. Summary of the invention

[0005] In view of at least one of the above technical problems, the present disclosure provides a pipe gland press-fitting device, aiming to solve the technical problem of low efficiency in manually installing the gland.

[0006] According to one aspect of the present disclosure, a pipe capping and pressing device is provided, which includes a frame, a positioning plate fixed relative to the frame and arranged horizontally for limiting the pipe to be capped, a pressure rod perpendicular to the positioning plate and arranged on the square of the positioning plate and fixed relative to the frame, a pressure plate arranged at the bottom end of the piston of the pressure rod and parallel to the positioning plate, and a limiting component for controlling the stroke of the pressure plate at the end of the pressure rod; the positioning plate is provided with a U-shaped positioning groove whose inner edge contour matches the corresponding outer edge contour of the pipe to be capped.

[0007] In some embodiments of the present disclosure, the pressure rod is a cylinder.

[0008] In some embodiments of the present disclosure, the limiting assembly includes a limiting threaded portion provided at the top end of the pressure rod piston, a limiting cylinder threadedly connected to the limiting threaded portion in turn, and a limiting nut for limiting the limiting cylinder.

[0009] In some embodiments of the present disclosure, the limiting cylinder includes a limiting cylinder body whose inner diameter matches the outer diameter of the piston, and a screw head provided at one end of the limiting cylinder body for threaded connection with the limiting threaded portion.

[0010] In some embodiments of the present disclosure, a magnetic ring is fixed to the piston of the pressure rod, and a magnetic induction switch for sensing the magnetic ring is provided at a corresponding height position outside the pressure rod.

[0011] In some embodiments of the present disclosure, the pressure rod is an electric push rod or a hydraulic rod.

[0012] In some embodiments of the present disclosure, the end surface of the pressing plate used for pressing the pressure cover is provided with a rubber layer.

[0013] In some embodiments of the present disclosure, an anti-pinch component is provided on the notch side of the U-shaped positioning groove, and the anti-pinch component includes gratings provided on both sides of the placement path corresponding to the placement of the pipe in the U-shaped positioning groove.

[0014] In some embodiments of the present disclosure, a limiting plate is further included for filling into the U-shaped positioning groove to support the pipe to be capped.

[0015] In some embodiments of the present disclosure, limiting members for supporting against the top surface of the positioning plate are respectively provided on both sides of the limiting plate.

[0016] One or more technical solutions provided in the embodiments of the present application have at least the following technical effects or advantages:

[0017] 1. The positioning plate is used to relatively fix the pipe fittings to be glanded, and the pressure plate driven by the pressure rod is used to vertically squeeze the glands. Compared with manual installation with a rubber hammer, the efficiency is significantly improved and certain labor costs can be saved.

[0018] 2. The limit assembly can realize the limit adjustment of the maximum stroke of the pressure rod piston. While ensuring the accuracy and reliability of the gland, the piston stroke can be adaptively adjusted according to the pipes with different structures, thereby improving the applicability of the press-fitting device.

[0019] 3. The anti-pinch component can detect the person's arm, thereby preventing the pressure rod from being accidentally activated and causing harm to the operator during the placement of pipes, thereby improving the safety of the device. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 Schematic diagram of the structure of a pipe gland pressing device in one embodiment of the present application.

[0021] Figure 2This is a schematic diagram of the use status of the press-fitting device in one embodiment of the present application.

[0022] Figure 3 This is a schematic diagram of the use status of the press-fitting device in another embodiment of the present application.

[0023] In the above figures, 1 is a frame, 2 is a positioning plate, 21 is a U-shaped positioning groove, 3 is a limiting plate, 31 is a limiting member, 32 is a handle, 4 is a pressure rod, 41 is a piston, 42 is a pressure plate, 51 is a limiting threaded portion, 52 is a limiting cylinder body, 53 is a screw head, 54 is a limiting nut, and 6 is an anti-pinch component. DETAILED DESCRIPTION

[0024] In the description of the present application, it should be understood that the terms "up", "down", "front", "back", "left", "right", "top", "bottom", "inside", "outside", "vertical", "horizontal", "clockwise", "counterclockwise", etc., indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present application.

[0025] The components and devices involved in the following embodiments are conventional commercial products unless otherwise specified. In order to better understand the technical solution of the present application, the above technical solution will be described in detail below in conjunction with the accompanying drawings and specific implementation methods.

[0026] This example discloses a pipe gland press-fitting device, which is used to replace the existing manual tapping action using a rubber hammer to improve the installation efficiency of the gland. Figure 1 The press-fitting device includes a frame 1, a positioning plate 2 and a press rod 4.

[0027] The frame 1 serves as the overall structure of the press-fit device, ensuring that the device can be stably placed or fixed to the ground by bolts or other fixing methods, while providing installation locations for other components of the device to ensure the overall structural stability of the device.

[0028] See also Figure 1 A positioning plate 2 is fixed to the frame 1. The positioning plate 2 is used to position the pipe to be capped. Therefore, in this embodiment, the positioning plate 2 is fixed to the frame 1 horizontally and parallel to the ground, thereby avoiding the problem that the positioning plate 2 is tilted and causes the pipe to be capped to be unstable and shake, thereby affecting the capping effect. In order to achieve reliable positioning of the positioning plate 2 on the pipe to be capped, see Figure 1In this example, a U-shaped positioning groove 21 is provided at the positioning plate 2, and the notch of the U-shaped positioning groove 21 is provided at an edge of the positioning plate 2; considering that a shoulder is generally provided at the end of the existing pipe fittings, the inner edge contour of the bottom of the U-shaped positioning groove 21 is set to match the minimum contour of the pipe fitting shoulder, that is, the pipe fitting is clamped in the U-shaped positioning groove 21 of the positioning plate 2 through the shoulder, thereby realizing the positioning of the pipe fitting to be capped at the positioning plate 2. In some other embodiments, the positioning plate 2 is connected to the frame 1 by bolts, so that the positioning plate matching it can be replaced according to different pipe fitting sizes, thereby improving the applicability of the device.

[0029] In some other embodiments, considering that after the pipe fittings are correspondingly inserted into the U-shaped positioning groove 21, due to the lack of support for the pipe fittings on the groove side, for pipe fittings whose center of gravity is not located on the vertical center line passing through the center of the pipe opening, such as a 90-degree elbow, there may be a risk of warping, that is, the plane where the pipe opening to be capped is located is not parallel to the positioning plate 2, which will affect the accuracy and reliability of the capping press. For this reason, see Figure 3 In this embodiment, after the pipe fitting is correspondingly inserted into the U-shaped positioning groove 21, the limiting plate 3 is pushed into the U-shaped positioning groove, and the pipe fitting to be capped is supported by the limiting plate 3; specifically, one end of the limiting plate 3 is used to fit and contact with the pipe fitting to be capped, and its end profile matches the outer edge profile of the pipe fitting, thereby achieving reliable support for the pipe fitting to be capped. In addition, limiting members 31 are fixedly provided on both sides of the top of the limiting plate 3, and the limiting plate 3 is stably hung on the top surface of the positioning plate 2 by the limiting members 31, so that the limiting member can be removed and placed very conveniently. In this example, the limiting member 31 is specifically a U-shaped steel plate, and the two ends of the U-shaped steel plate are respectively welded and fixed to the limiting plate 3, thereby expanding the contact area between the limiting member 31 and the positioning plate 2 through its U-shaped structure, thereby ensuring the position stability and force reliability of the limiting plate 3. In addition, in order to facilitate the removal of the limiting plate 3 when the pipe is loaded into or taken out of the capping device, a handle 32 is provided at the end of the limiting member in this example to facilitate the operation of personnel.

[0030] The pressing rod 4 is used to output power to realize the pressing of the cover. Figure 1, the pressure rod 4 is fixed to the frame 1 and is arranged just above the positioning plate 2, and the piston 41 of the pressure rod 4 is perpendicular to the positioning plate 2. In this embodiment, a pressure plate 42 is fixedly arranged at the bottom end of the piston 41, so that when the pressure rod 4 outputs power, the piston 41 moves and extends, so that the pressure plate 42 at the end of the piston 41 presses against the gland of the pipe fitting, thereby realizing the fixed installation of the gland. In this example, the central axis of the piston 41 is vertically collinear with the center of the pipe fitting socket corresponding to the U-shaped positioning groove, so that when the pressure plate 42 is pressed on the gland, the gland can be uniformly stressed, thereby ensuring the accurate pressing of the gland. In addition, considering that the direct contact between the pressure plate 42 and the gland may cause wear on the gland, for this reason, in some other embodiments, the end face of the pressure plate 42 used for pressing the gland is provided with a rubber layer, and through the elastic deformation of the rubber layer, on the one hand, it can avoid the wear caused by hard contact between the end face of the gland and the pressure plate, and on the other hand, it can play a certain buffering role when the pressure plate is pressed on the gland, thereby improving the flexibility of the installation process.

[0031] In this embodiment, the pressure rod 4 is a cylinder, and in some other embodiments, the pressure rod is an electric push rod or a hydraulic rod. Among them, the piston of the pressure rod 4 moves to press the gland into place and then resets. In this process, the stroke of the piston of the pressure rod needs to be accurately controlled. On the one hand, it is necessary to avoid excessive piston stroke, which causes the pressure rod to continue to output power for extrusion after the gland is pressed into place, thereby affecting the structural integrity of the pipe fitting and the pressure rod. On the other hand, it is necessary to avoid too small piston stroke, which causes the gland to fail to be pressed into place. For this reason, a limit assembly is provided to control the stroke of the pressure plate at the end of the piston. See Figure 1 In the present embodiment, the limiting assembly comprises a limiting threaded portion 51 provided at the top end of the piston 41, and the limiting threaded portion 51 is threadedly connected to the limiting cylinder. Furthermore, the limiting cylinder comprises a limiting cylinder body 52 and a screw head 54 provided at the end of the limiting cylinder body 52, wherein the limiting cylinder body 52 and the screw head 54 are an integrated structure, and the inner edge diameter of the limiting cylinder body 52 is not less than the outer edge diameter of the piston, thereby making the limiting cylinder adjustable through the screw head 54. The relative position of the limiting cylinder outside the piston can be adjusted by correspondingly screwing the limiting cylinder, and the positions of the two are relatively fixed after adjustment, thereby when the piston moves, the limiting cylinder and the top of the pressure rod interfere with each other, thereby limiting the maximum stroke of the piston. In addition, in order to prevent the relative position of the limiting cylinder and the piston from changing during use, a limiting nut 54 is threadedly connected at the limiting threaded portion 51 in this example, thereby preventing the limiting nut from changing its position during use of the device through contact between the limiting nut 54 and the limiting cylinder.

[0032] In some other embodiments, in order to limit the stroke of the piston of the pressure rod, a cylinder with a magnetic ring fixed on the piston is used, and a magnetic induction switch is fixed outside the pressure rod to detect the movement position of the magnetic ring built into the cylinder, and then cut off the power of the cylinder in time to limit the stroke of the piston. Then, by adjusting the fixed position of the magnetic induction switch, the maximum stroke of the piston can be adjusted.

[0033] See also Figure 2 Before using this device, first adjust the position of the limit cylinder according to the required downward stroke, then insert the pipe fitting with the sealing ring and the gland (not shown in the figure) placed at the socket into the U-shaped positioning groove of the positioning plate 2, start the pressure rod piston to press down, and press the gland onto the socket of the pipe fitting through the pressure plate. In this process, it is necessary to manually place the pipe fitting on the positioning plate to avoid safety accidents caused by the cylinder starting by mistake. Figure 1 In this example, an anti-pinch component is arranged on the open side of the U-shaped positioning groove, and the anti-pinch component is fixedly arranged between the frame. In this example, the anti-pinch component is a grating, which includes a light beam transmitter and a light beam receiver, which are respectively arranged on both sides of the path of the pipe fitting loading into the U-shaped positioning groove. If there is an obstruction between the light beam transmitter and the light beam receiver, the grating outputs a signal, thereby cutting off the power output of the cylinder, thereby avoiding safety problems such as mis-clamping.

[0034] Although some preferred embodiments of the present application have been described, those skilled in the art may make other changes and modifications to these embodiments once they have learned the basic creative concept. Therefore, the appended claims are intended to be interpreted as including the preferred embodiments and all changes and modifications that fall within the scope of the present application.

[0035] Obviously, those skilled in the art can make various changes and modifications to the present application without departing from the spirit and scope of the present invention. Thus, if these modifications and variations of the present application fall within the scope of the claims of the present application and their equivalents, the present application is also intended to include these modifications and variations.

Claims

1. A pipe gland press-fitting device, characterized in that: It includes a frame, a positioning plate fixed relative to the frame and arranged horizontally for limiting the position of the pipe to be capped, a pressure rod perpendicular to the positioning plate and arranged on the square of the positioning plate and fixed relative to the frame, a pressure plate arranged at the bottom end of the piston of the pressure rod and parallel to the positioning plate, and a limiting component for controlling the stroke of the pressure plate at the end of the pressure rod; the positioning plate is provided with a U-shaped positioning groove whose inner edge contour matches the corresponding outer edge contour of the pipe to be capped.

2. The pipe gland pressing device according to claim 1, characterized in that: The pressure rod is a cylinder.

3. The pipe gland pressing device according to claim 2, characterized in that: The limiting assembly comprises a limiting threaded portion arranged at the top end of the pressure rod piston, a limiting cylinder threadedly connected to the limiting threaded portion in sequence, and a limiting nut used for limiting the limiting cylinder.

4. The pipe gland pressing device according to claim 3, characterized in that: The limiting cylinder comprises a limiting cylinder body whose inner diameter matches the outer diameter of the piston, and a screw head arranged at one end of the limiting cylinder body and used for screwing with the limiting threaded portion.

5. The pipe gland pressing device according to claim 2, characterized in that: A magnetic ring is fixed to the piston of the pressure rod, and a magnetic induction switch for sensing the magnetic ring is provided at a corresponding height position outside the pressure rod.

6. The pipe gland pressing device according to claim 1, characterized in that: The pressure rod is an electric push rod or a hydraulic rod.

7. The pipe gland pressing device according to claim 1, characterized in that: The end surface of the pressing plate used for pressing the gland is provided with a rubber layer.

8. The pipe gland pressing device according to claim 1, characterized in that: An anti-pinch component is correspondingly arranged on the notch side of the U-shaped positioning groove, and the anti-pinch component includes gratings arranged on both sides of the placement path corresponding to the placement of the pipe fitting in the U-shaped positioning groove.

9. The pipe gland pressing device according to claim 1, characterized in that: It also includes a limiting plate for filling into the U-shaped positioning groove to support the pipe to be capped.

10. The pipe gland pressing device according to claim 9, characterized in that: Limiting members for supporting against the top surface of the positioning plate are respectively arranged on both sides of the limiting plate.

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