Portable puller

Abstract

The utility model discloses a portable puller which comprises a jacking assembly, and a connecting rod assembly is further arranged in the jacking assembly. One end of the connecting rod assembly penetrates through the jacking assembly and then is connected with an arranged nut, and the other end of the connecting rod assembly is connected with an arranged tensioning sleeve assembly. The connecting rod assembly comprises a first rod body and a second rod body, and the first rod body is movably connected with the second rod body. By means of the mode, the valve seat can be taken out stably and rapidly, the valve box is not prone to being damaged, and the replacement efficiency of the valve seat is improved; particularly, due to the fact that the connecting rod assembly is of a split structure, when the suction end valve seat is taken out, the first rod body is used; and when the discharge end valve seat is taken out, the two rod bodies are connected together, so that the problem that the length of the integrated rod body extending out of the valve box is too large when the suction end valve seat is taken out, and the problems that the integrated rod body occupies a large space and is inconvenient to carry and transport are solved. On the basis, the device is worthy of popularization and application.

Description

Technical Field

[0001] This utility model relates to the technical field of valve seat removers, specifically a convenient puller. Background Technology

[0002] Currently, when valve seats need to be removed at construction sites, the common method is to use a pry bar to hold the bottom of the valve seat and then hammer the pry bar to push it out. This method is time-consuming, labor-intensive, and can easily damage the valve box. To address this issue, our company has launched a patented product with publication number CN217394844U.

[0003] However, in practical applications, since both the inlet and outlet ends of the valve box have valve seats, when the integrated rod is pulled out of the inlet valve seat, most of the rod needs to be exposed outside the valve box during the pulling process. The long rod also leads to an excessive lifting stroke of the lifting assembly. Utility Model Content

[0004] The purpose of this invention is to provide a convenient puller to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a convenient puller, including a lifting assembly, wherein the lifting assembly further includes a connecting rod assembly; one end of the connecting rod assembly passes through the lifting assembly and is connected to a nut, and the other end of the connecting rod assembly is connected to a tensioning sleeve assembly; the connecting rod assembly includes a first rod body and a second rod body, and the first rod body and the second rod body are movably connected.

[0006] As a preferred technical solution of this utility model: one end of the first rod is movably connected to the connecting part provided on the second rod via a connecting rod.

[0007] As a preferred technical solution of this utility model: the connecting rod is an externally threaded column, and is adapted to be connected with the internal thread provided on the inner wall surface of the connecting part.

[0008] As a preferred technical solution of this utility model: the end of the second rod away from the connecting part is engaged with the inner wall thread of the tensioning sleeve assembly through a first external thread.

[0009] As a preferred technical solution of this utility model: one end of the first rod is provided with a second external thread, and the other end of the first rod is provided with a third external thread.

[0010] The beneficial effects of this utility model by adopting the above technical solution are: the valve seat removal process is smooth and quick, less likely to damage the valve box, and improves the replacement efficiency of the valve seat; in particular, since the connecting rod assembly is a split structure, the first rod is used when removing the suction end valve seat; when removing the discharge end valve seat, the two rods are connected together, thereby effectively solving the problem that the length of the integrated rod extending out of the valve box is too large when removing the suction end valve seat, and solving the problem that the integrated rod occupies a lot of space and is inconvenient to carry and transport. Attached Figure Description

[0011] Figure 1 This is an exploded view of the main structure of this utility model;

[0012] Figure 2 This is an exploded structural diagram of the connecting rod assembly of this utility model;

[0013] Figure 3 This is a schematic diagram showing the state of the present invention when the discharge end valve seat is pulled out.

[0014] In the diagram: 1. Lifting assembly; 2. Nut; 3. Connecting rod assembly; 30. First rod body; 31. Second external thread; 32. Connecting rod; 33. Second rod body; 34. First external thread; 35. Connecting part; 36. Third external thread; 4. Tensioner assembly. Detailed Implementation

[0015] The embodiments of this utility model are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and intended to explain this utility model, and should not be construed as limiting this utility model. In the description of this utility model, it should be understood that the terms "upper," "lower," "front," "upper surface," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model and simplifying the description, and 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, and therefore should not be construed as limiting this utility model.

[0016] Please see Figure 1-3 The present invention provides an embodiment of a convenient puller, comprising a lifting assembly 1, wherein the lifting assembly 1 is further provided with a connecting rod assembly 3; one end of the connecting rod assembly 3 passes through the lifting assembly 1 and is connected to a nut 2, and the other end of the connecting rod assembly 3 is connected to a tensioning sleeve assembly 4; the connecting rod assembly 3 includes a first rod body 30 and a second rod body 33, and the first rod body 30 and the second rod body 33 are movably connected.

[0017] In summary, the above-mentioned method ensures a smooth and quick valve seat removal process, minimizes damage to the valve box, and improves valve seat replacement efficiency. In particular, since the connecting rod assembly 3 is a split structure, the first rod 30 is used when removing the suction end valve seat, and the two rods are connected together when removing the discharge end valve seat. This effectively solves the problem of excessive extension of the rod beyond the valve box when removing the suction end valve seat, as well as the problem of large space occupation and inconvenience in carrying and transporting the rod when it is integrated.

[0018] To facilitate the disassembly and assembly of the two rods, one end of the first rod 30 is movably connected to the connecting part 35 on the second rod 33 via a connecting rod 32. Specifically, the connecting rod 32 is an externally threaded post, which is adapted to be connected to the internal thread on the inner wall of the connecting part 35.

[0019] In summary, using a threaded connection to connect the two rods can reduce the processing difficulty of both and improve the efficiency of assembly and disassembly.

[0020] Based on the above solution, since the end of the second rod 33 away from the connecting part 35 is threaded with the inner wall of the tensioning sleeve assembly 4 through a first external thread 34, the second rod 33 can also smoothly unfold the tensioning sleeve assembly 4.

[0021] Furthermore, since one end of the first rod 30 is provided with a second external thread 31, the first rod 30 can also facilitate the smooth unfolding of the tensioning sleeve assembly 4. In addition, since the other end of the first rod 30 is provided with a third external thread 36, it is easy to connect with the nut 2 to ensure a reliable connection between the first rod 30 and the lifting assembly 1.

[0022] The embodiments of this utility model have been described in detail above with reference to the accompanying drawings, but this utility model is not limited to the described embodiments. For those skilled in the art, various changes, modifications, substitutions, and variations can be made to these embodiments without departing from the principles and spirit of this utility model, and these variations still fall within the protection scope of this utility model.

Claims

1. A portable puller, characterized in that: It includes a lifting assembly (1), and the lifting assembly (1) is further provided with a connecting rod assembly (3); One end of the connecting rod assembly (3) passes through the lifting assembly (1) and is connected to the provided nut (2), and the other end of the connecting rod assembly (3) is connected to the provided tensioning sleeve assembly (4); The linkage assembly (3) includes a first rod (30) and a second rod (33), and the first rod (30) and the second rod (33) are movably connected.

2. The portable puller according to claim 1, characterized in that: One end of the first rod (30) is movably connected to the connecting part (35) provided on the second rod (33) via a connecting rod (32).

3. A portable puller according to claim 2, characterized in that: The connecting rod (32) is an externally threaded post and is adapted to be connected to the internal thread provided on the inner wall of the connecting part (35).

4. A portable puller according to claim 2 or 3, characterized in that: The end of the second rod (33) away from the connecting part (35) is threaded with the inner wall thread of the tensioning sleeve assembly (4) through the first external thread (34).

5. A portable puller according to claim 4, characterized in that: One end of the first rod (30) is provided with a second external thread (31), and the other end of the first rod (30) is provided with a third external thread (36).

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