Pipe cover dismounting tool

Abstract

This utility model discloses a pipe cap disassembly and assembly tool, relating to the field of manual disassembly and assembly tools. It includes a working end with a polygonal cross-section. A prism-shaped slider is disposed inside the hollow working end. The side edges of the slider are parallel to the side edges of the working end, and the sides of adjacent sliders abut against each other. A guide rod is provided on one side of the slider end face, allowing the slider to slide axially along the guide rod. This presses the working end towards the cap, causing the slider to slide axially along the guide rod, forming a groove on the end face of the working end that matches the shape of the cap. The cap is held in the groove. Rotating the working end rotates the cap, allowing for inspection of the seal's tightness and disassembly / assembly. This reduces the amount of tools required for disassembly and assembly, and improves the efficiency of cap tightness inspection. After inspection or disassembly / assembly is completed, a return spring on the guide rod pushes the slider back to its original position, restoring the end face of the working end to a flat surface for subsequent cap inspection and disassembly / assembly.

Description

Technical Field

[0001] This utility model relates to the field of disassembly and assembly tools, and in particular to a pipe cap disassembly and assembly tool. Background Technology

[0002] During civil engineering construction, pipelines need to be laid over a large area. To facilitate transportation and installation, the pipelines are pre-cut into different segments and lengths. During the laying process, each port of the pipeline needs to be temporarily sealed with a cap of the same specifications and size as the port. The cap is usually hexagonal or other nut-shaped to facilitate disassembly and assembly.

[0003] The installation quality of the cap directly affects the safety of pipeline pressurization. It is necessary to ensure that the cap and port are tightly sealed to prevent danger, and also to allow the cap to be removed from the port for easy subsequent construction. Since different pipelines have different port specifications and models, the size and shape of the caps used to seal the ports are also different. Therefore, when testing the tightness of the cap at the pipeline port, it is necessary to carry various types of tools. For caps with special shapes, special disassembly and assembly tools for special-shaped caps are also required. The large number of tools is inconvenient to carry, which affects the efficiency of the tightness test between the cap and the port. Utility Model Content

[0004] The purpose of this utility model is to provide a pipe cap installation and removal tool to solve the problems existing in the prior art, improve the convenience of pipe cap installation, removal and inspection, and improve pipeline construction efficiency.

[0005] To achieve the above objectives, the present invention provides the following solution: The present invention provides a pipe cap disassembly and assembly tool, including a working end, the cross-section of which is polygonal;

[0006] The working end includes a guide rod, a return spring, and a prismatic slider disposed inside the working end. The side edge of the slider is parallel to the side edge of the corresponding working end. The sliders are arranged in an array along the cross-section of the working end, and the sides of adjacent sliders abut against each other. The guide rod is disposed on one side of one end face of the slider. The slider can slide along the axial direction of the guide rod. The return spring is sleeved on the guide rod for resetting the slider.

[0007] In one embodiment, the device further includes a handle and a sleeve, with the working end located at either end of the sleeve and the handle located at the other end of the sleeve, and the sleeve being detachably connected to the handle and the working end.

[0008] In one embodiment, the end of the sleeve connected to the working end is provided with at least one connection end that is detachably connected to the working end.

[0009] In one embodiment, a fixed plate is provided inside the working end, one end of the guide rod is fixedly connected to the fixed plate, and the other end of the guide rod is slidably connected to the slider.

[0010] In one embodiment, a guide hole is provided on the end face of the slider facing the fixed plate, and a guide rod extends into the guide hole. A limiting device is provided on the guide hole and the guide rod to prevent the guide rod from coming out of the guide hole.

[0011] In one embodiment, a limiting plate is provided inside the working end, and a limiting hole is provided on the limiting plate. A guide rod is disposed through the limiting hole, and the end of the guide rod away from the handle is connected to the end face of the slider near the limiting plate.

[0012] In one embodiment, a limit ring is provided at the end of the guide rod away from the slider, the diameter of the limit ring is not less than the diameter of the limit hole, and a reset spring is provided between the slider and the limit plate.

[0013] In one embodiment, the slider is a regular triangular prism, and the cross-section of the working end is a regular hexagon.

[0014] In one embodiment, the slider is a regular square prism, and the cross-section of the working end is a regular square.

[0015] In one embodiment, the working end and the slider surface are provided with a chromium plating layer.

[0016] The present invention achieves the following technical advantages over the prior art:

[0017] The disassembly / assembly tool is equipped with a working end, which is hollow with a polygonal cross-section. Inside the hollow working end is a prismatic slider, the side edges of which are parallel to the side edges of the working end. The sliders are stacked sequentially inside the working end, with the sides of adjacent sliders abutting against each other. A guide rod is located on one side of one end face of the slider, allowing the slider to slide axially along the guide rod. After the end face of the working end is brought into contact with the end face of the cap, pressing the working end towards the cap causes the prismatic slider inside the working end to slide axially along the guide rod, forming a groove on the end face of the working end that matches the shape of the cap. The cap is then locked inside the groove. Rotating the working end causes the cap to rotate, thus checking the tightness and disassembly / assembly between the cap and the port. This reduces the amount of equipment required for disassembly / assembly and improves the efficiency of cap tightness testing. After testing or disassembly / assembly is completed, a return spring on the guide rod pushes the slider back to its original position, restoring the end face of the working end to a flat surface for subsequent cap testing and disassembly / assembly. Attached Figure Description

[0018] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0019] Figure 1 This is a schematic diagram of the overall structure of the disassembly and assembly tools after assembly in an embodiment of this utility model;

[0020] Figure 2 This is a schematic diagram of the split-type structure of the disassembly and assembly tool in an embodiment of the present utility model.

[0021] Figure 3 This is a schematic diagram of the working end of the disassembly and assembly tool in an embodiment of this utility model;

[0022] Figure 4 This is a schematic diagram of the arrangement of sliders at the working end in an embodiment of the present invention;

[0023] Figure 5 This is a schematic diagram showing the state of the working end during disassembly or inspection of the sealing cap in an embodiment of this utility model;

[0024] Figure 6 This is a schematic diagram of the slider and the working end when the cross-section of the working end is a regular hexagon in this embodiment of the present invention;

[0025] Figure 7 This is a schematic diagram of the structure of one type of slider and working end when the cross-section of the working end is a regular quadrilateral in this embodiment of the present invention;

[0026] Figure 8 This is a schematic diagram of another slider and working end structure when the cross-section of the working end is a regular quadrilateral in this embodiment of the present invention;

[0027] The components are: 1. handle; 2. sleeve; 3. working end; 4. cap; 5. slider; 6. guide rod; 7. return spring. Detailed Implementation

[0028] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0029] The purpose of this utility model is to provide a pipe cap installation and removal tool to solve the problems existing in the prior art, improve the convenience of pipe cap installation, removal and inspection, and improve pipeline construction efficiency.

[0030] To make the above-mentioned objectives, features and advantages of this utility model more apparent and understandable, the utility model will be further described in detail below with reference to the accompanying drawings and specific embodiments.

[0031] Please refer to Figures 1 to 5 One of the pipe cap installation and removal tools includes a working end 3 with a polygonal cross-section. The working end 3 has a hollow cavity inside, and prismatic sliders 5 are arranged within the cavity. Multiple sliders 5 are arranged within the cavity of the working end 3, with the side edges of the sliders 5 parallel to the side edges of the working end 3. The sides of adjacent sliders 5 abut against each other, causing the sliders 5 to be tightly arranged within the cavity of the working end 3 until the sliders 5 fill the entire cavity. A guide rod 6 is provided on one side of any end face of the slider 5, allowing the slider 5 to slide axially along the guide rod 6. After the end face of the working end 3 abuts against the cap 4, it... The working end 3 applies a pressing force in the direction of the sealing cover 4. The sealing cover 4 pushes the slider 5 to move along the axial direction of the guide rod 6 in the cavity of the working end 3, forming a groove on the end face of the working end 3 that fits the shape of the sealing cover 4. At this time, when the working end 3 is rotated, the groove formed by the working end 3 that matches the shape of the sealing cover 4 drives the sealing cover 4 to rotate. The guide rod 6 is also equipped with a return spring 7. After the sealing cover 4 is inspected or disassembled, the sealing cover 4 is separated from the working end 3. The slider 5, which is pressed by the sealing cover 4 and causes it to slide, is reset under the action of the return spring 7. The end face of the working end 3 returns to flatness, which facilitates the subsequent inspection and disassembly of the sealing cover 4.

[0032] For preferred options, please refer to [the provided text]. Figures 6 to 8 The cross-section of the working end 3 is a regular hexagon, while the slider 5 is a regular triangular prism; or, the cross-section of the working end 3 is a regular square, while the slider 5 is a regular square prism; or, the cross-section of the working end 3 is a regular square, while the cross-section of the slider 5 is a triangular prism of an isosceles right triangle.

[0033] Under the above conditions, after the slider 5 fills the cross-section of the working end 3, the side of the outermost slider 5 can completely abut against the inner side of the cavity of the working end 3. When the cover 4 is inspected or disassembled, the squeezing force of the cover 4 on the slider 5 on its side can be transmitted to the working end 3 through the side of the slider 5, preventing the relative displacement of adjacent sliders 5 due to squeezing when the cover 4 is inspected or disassembled, and avoiding bending deformation of slider 5 and guide rod 6.

[0034] The disassembly and assembly tool also includes a handle 1 and a sleeve 2. The working end 3 is set at either end of the sleeve 2, and the handle 1 is set at the other end of the sleeve 2. The working range of the working end 3 is extended by the sleeve 2, which makes it convenient for workers to inspect or disassemble the caps 4 in areas outside the range of their arms. The handle 1 can increase the worker's control over the working end 3 and make it convenient for the worker to apply torsional force to the working end 3 through the handle 1. In order to adapt to different usage environments, the sleeve 2 is detachably connected to the handle 1 and the working end 3, and different lengths of the sleeve 2 can be replaced according to the usage environment.

[0035] Preferably, at least one connecting end is provided at the end of the sleeve 2 that is connected to the working end 3. The connecting end can be located at the end of the sleeve 2 or on the side near the end of the working end 3 that is connected to the sleeve 2. The worker can adjust the position of the working end 3 on the sleeve 2 according to the position of the cap 4, so that the worker can apply torsional force through the handle 1 and the sleeve 2 during the inspection and disassembly of the cap 4. The connecting end can realize the detachable connection between the sleeve 2 and the working end 3. The connecting end can include, but is not limited to, snap-fit, threaded connection and other connection methods. It is only necessary to ensure the connection strength between the working end 3 and the sleeve 2 while facilitating the worker's disassembly.

[0036] When the sleeve 2 and the working end 3 are connected by a snap-fit, either the working end 3 or the sleeve 2 is provided with a polygonal sleeve, and the other is provided with a connecting block that matches the polygonal sleeve. The polygonal sleeve has a protrusion inside. After the connecting block is inserted into the sleeve, the connecting block squeezes the protrusion inside the polygonal sleeve. The detachable connection between the sleeve 2 and the working end 3 is achieved by the friction between the connecting block and the protrusion.

[0037] When the sleeve 2 and the working end 3 are connected by a threaded connection, either the working end 3 or the sleeve 2 is provided with an external thread, and the other is provided with an internal thread. The working end 3 and the sleeve 2 are provided with a positioning groove at the position where the thread is provided. The positioning groove is distributed along the axial direction of the working end 3 and the sleeve 2 and passes through the working end 3 and the sleeve 2. After the sleeve 2 and the working end 3 are connected by a thread, the positioning grooves on the working end 3 and the sleeve 2 are aligned, and a positioning piece is provided in the positioning groove to prevent the working end 3 from rotating relative to the sleeve 2 when the working end 3 is rotated during the inspection or disassembly of the cover 4, thus preventing it from disengaging from the sleeve 2 and ensuring the smooth progress of the inspection or disassembly work.

[0038] Due to the complex environment of the site where the cover 4 is located, in order to avoid corrosion of the working end 3 and the slider 5 by the harsh environment, chrome plating is performed on the surface of the working end 3 and the slider 5 to protect the working end 3 and the slider 5 and ensure that the slider 5 slides smoothly inside the working end 3.

[0039] Example 1

[0040] In this embodiment, a fixing plate is provided inside the working end 3, and the shape of the fixing plate matches the cross-sectional shape of the working end 3. One end of the guide rod 6 is fixedly connected to the fixing plate, and the other end of the guide rod 6 is slidably connected to the slider 5.

[0041] Preferably, a guide hole is provided on the end face of the slider 5 facing the fixed plate, and the guide rod 6 extends into the guide hole. The inner diameter of the guide hole is larger than the outer diameter of the guide rod 6 and smaller than the diameter of the return spring 7. The return spring 7 is provided between the fixed plate and the slider 5. When pressure is applied to the fixed end towards the cover 4, relative movement occurs between the slider 5 and the guide rod 6, thereby forming a groove on the end face of the working end 3 that matches the cover 4. In order to prevent the guide rod 6 from coming out of the guide hole, a limit device is provided in the guide hole.

[0042] In one embodiment of the limiting device, the limiting device includes a guide rail disposed in a guide hole and a sliding groove disposed on the guide rod 6 that matches the guide rail. The guide rail is only disposed at the opening of the guide hole, and the sliding groove is disposed along the axial direction of the guide rod 6 on the side of the guide rod 6, but does not penetrate the guide rod 6. That is, the sliding groove is closed at the end of the guide rod 6 away from the fixed plate. When the external force applied to the working end 3 disappears, the return spring 7 pushes the slider 5 to reset. At this time, the end of the slider 5 close to the fixed plate moves to the end of the guide rod 6 away from the fixed plate. The closed sliding groove restricts the relative movement between the slider 5 and the guide rod 6, preventing the guide rod 6 from coming out of the guide hole.

[0043] In another embodiment of the limiting device, the limiting device includes a flexible rope disposed on the end face of the slider 5 facing the fixed plate, the other end of the flexible rope being connected to the fixed plate, and the length of the flexible rope being less than the length of the guide rod 6. During the process of the reset spring 7 pushing the slider 5 to reset, the movement of the slider 5 is restricted by the flexible rope, thereby preventing the guide rod 6 from coming out of the guide hole.

[0044] The structure of the limiting device is not limited to the two methods mentioned above; it only needs to satisfy the function of preventing the guide rod 6 from coming out of the guide hole.

[0045] Example 2

[0046] Unlike Embodiment 1, the working end 3 is provided with a limiting plate inside, and a limiting hole is provided on the limiting plate. The guide rod 6 is inserted through the limiting hole. The end of the guide rod 6 away from the handle 1 is fixedly connected to the end face of the slider 5 near the limiting plate. When an external force is applied to the working end 3, the guide rod 6 and the slider 5 can move synchronously. The slider 5 pushes the guide rod 6 to move axially along the limiting hole, thereby forming a groove on the end face of the working end 3 that fits into the cover 4.

[0047] Preferably, in this embodiment, to prevent the guide rod 6 from disengaging from the limiting hole, since the end of the guide rod 6 away from the slider 5 passes through the limiting hole, a limiting ring is provided at the end of the guide rod 6 located on the side of the limiting plate away from the slider 5. The diameter of the limiting ring is not less than the diameter of the limiting hole. The reset spring 7 is provided between the slider 5 and the limiting plate, and the movement stroke of the guide rod 6 is limited during the reset process of the slider 5 by the limiting ring.

[0048] Any adaptive changes made according to actual needs are within the scope of protection of this utility model.

[0049] It should be noted that, for those skilled in the art, it is obvious that this utility model is not limited to the details of the above exemplary embodiments, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this utility model. Therefore, the embodiments should be considered exemplary and non-limiting in all respects, and the scope of this utility model is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this utility model. No reference numerals in the claims should be construed as limiting the scope of the claims.

[0050] This utility model uses specific examples to illustrate its principles and implementation methods. The above description of the embodiments is only for the purpose of helping to understand the method and core idea of ​​this utility model. At the same time, for those skilled in the art, there will be changes in the specific implementation methods and application scope based on the idea of ​​this utility model. In summary, the content of this specification should not be construed as a limitation of this utility model.

Claims

1. A pipe cap disassembly and assembly tool, characterized in that, Includes a working end (3), the cross-section of which is polygonal; The working end (3) includes a guide rod (6), a return spring (7), and a prismatic slider (5) disposed inside the working end (3). The side edge of the slider (5) is parallel to the side edge of the corresponding working end (3). The sliders (5) are arranged along the cross-section of the working end (3), and the sides of adjacent sliders (5) abut against each other. The guide rod (6) is disposed on one side of one end face of the slider (5). The slider (5) can slide along the axial direction of the guide rod (6). The return spring (7) is sleeved on the guide rod (6) for resetting the slider (5).

2. The pipe cap disassembly and assembly tool according to claim 1, characterized in that, It also includes a handle (1) and a sleeve (2), the working end (3) is disposed at either end of the sleeve (2), the handle (1) is disposed at the other end of the sleeve (2), and the sleeve (2) is detachably connected to the handle (1) and the working end (3).

3. The pipe cap disassembly and assembly tool according to claim 2, characterized in that, The end of the sleeve (2) connected to the working end (3) is provided with at least one connection end that is detachably connected to the working end (3).

4. The pipe cap disassembly and assembly tool according to claim 3, characterized in that, The working end (3) is provided with a fixing plate inside. One end of the guide rod (6) is fixedly connected to the fixing plate, and the other end of the guide rod (6) is slidably connected to the slider (5).

5. The pipe cap disassembly and assembly tool according to claim 4, characterized in that, The slider (5) has a guide hole on one end face facing the fixed plate, and the guide rod (6) extends into the guide hole. The guide hole and the guide rod (6) are provided with a limiting device to prevent the guide rod (6) from coming out of the guide hole.

6. The pipe cap disassembly and assembly tool according to claim 3, characterized in that, The working end (3) is provided with a limiting plate inside, and the limiting plate is provided with a limiting hole. The guide rod (6) is provided through the limiting hole, and the end of the guide rod (6) away from the handle (1) is connected to the end face of the slider (5) near the limiting plate.

7. The pipe cap disassembly and assembly tool according to claim 6, characterized in that, A limiting ring is provided at the end of the guide rod (6) away from the slider (5), the diameter of the limiting ring is not less than the diameter of the limiting hole, and the reset spring (7) is disposed between the slider (5) and the limiting plate.

8. The pipe cap disassembly and assembly tool according to claim 1, characterized in that, The slider (5) is a regular triangular prism, and the cross-section of the working end (3) is a regular hexagon.

9. The pipe cap disassembly and assembly tool according to claim 1, characterized in that, The slider (5) is a regular square prism, and the cross-section of the working end (3) is a regular square.

10. The pipe cap disassembly and assembly tool according to claim 1, characterized in that, The working end (3) and the slider (5) are provided with a chromium plating layer.

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