Double fixed pin pipe cutter

Abstract

The utility model provides a kind of double fixed pin pipe cutter, including shell and the articulated handle being hinged in shell, the end of movable handle is provided with the insertion slot for blade insertion, the end of movable handle is provided with double fixed pin structure, double fixed pin structure is configured as bearing the force of blade when shearing, to avoid blade and movable handle direct contact;Double fixed pin structure includes first fixed pin and second fixed pin being inserted in insertion slot, first fixed pin is arranged at one end of insertion slot, and second fixed pin is arranged close to insertion slot insertion port;The side of blade is provided with the first clamping groove compatible with first fixed pin, and its inside is provided with the second clamping groove compatible with second fixed pin;A kind of double fixed pin pipe cutter provided by the utility model, overcome the defect that the service life is shortened and stability is poor caused by the direct contact of existing pipe cutter blade and movable handle.

Description

Technical Field

[0001] This utility model relates to the field of pipe cutter technology, specifically to a pipe cutter with double fixing pins. Background Technology

[0002] In the field of pipe processing and installation, pipe cutters are a commonly used tool for cutting various types of pipes. With the continuous development of industries such as industrial production and construction, higher requirements are being placed on the performance and durability of pipe cutters.

[0003] Currently, most pipe cutters on the market use a detachable blade structure, which facilitates blade replacement and maintenance to some extent. For example, patent number CN219234126U provides a button-type blade changer pipe cutter, which includes a housing and a movable handle mounted on the housing. The blade is detachably mounted on the movable handle via a quick-change mechanism. The movable handle has a blade groove, in which the blade is inserted, and the shape of the blade insertion end matches the shape of the blade groove.

[0004] In the above structure, when performing pipe shearing operations, the shearing force borne by the blade is directly transmitted and acts on the movable handle. Since most existing movable handles are made of die-cast aluminum, and aluminum itself is relatively soft, when the blade frequently contacts and rubs against the movable handle under continuous shearing force, it will cause the blade and movable handle to wear faster, shorten their service life, and also affect the stability and reliability of the cutting operation. It may even lead to dangerous situations such as blade loosening during use. Utility Model Content

[0005] (a) Technical problems to be solved

[0006] In view of this, the present invention provides a pipe cutter with double fixed pins, which overcomes the defects of existing pipe cutters where the blade and the movable handle are in direct contact, resulting in shortened service life and poor stability.

[0007] (II) Technical Solution

[0008] To solve the aforementioned technical problem, this utility model provides a double-fixed-pin pipe cutter, including a housing and a movable handle hinged within the housing. The end of the movable handle is provided with a insertion groove for inserting a blade, and the end of the movable handle is provided with a double-fixed-pin structure. The double-fixed-pin structure is configured to bear the force of the blade during cutting, thereby preventing direct contact between the blade and the movable handle. The double-fixed-pin structure includes a first fixing pin and a second fixing pin passing through the insertion groove. The first fixing pin is arranged at one end of the insertion groove, and the second fixing pin is arranged near the insertion port of the insertion groove. One side of the blade is provided with a first slot adapted to the first fixing pin, and its interior is provided with a second slot adapted to the second fixing pin.

[0009] In some embodiments, the housing and the movable handle are hinged by a center pin, which passes through the insertion slot, and the blade is provided with a third slot that matches the center pin; the first fixing pin, the second fixing pin and the center pin are arranged in a triangle.

[0010] In some embodiments, the insertion end of the blade is provided with a limiting plate and a locking plate at intervals, the first slot and the third slot are arranged opposite to each other on both sides of the limiting plate, and the second slot is arranged between the limiting plate and the locking plate.

[0011] In some embodiments, the end of the movable handle is provided with a first through hole and a second through hole, the first fixing pin is inserted into the first through hole, and the second fixing pin is inserted into the second through hole.

[0012] In some embodiments, a locking member is movably installed on the outer wall of the insertion slot, the locking member is provided with a locking head that can extend into the insertion slot, and the insertion end of the blade is provided with a locking groove that can engage with the locking head.

[0013] In some embodiments, the middle part of the locking member is hinged to the outer wall of the movable handle, the locking latch is disposed at one end of the locking member, and the other end of the locking member is provided with a pressing part.

[0014] In some embodiments, a spring is installed between the pressing part and the movable handle, the spring always tending to move the locking head toward the insertion slot; a spring groove is provided on the movable handle, and a spring post is provided at the pressing part; one end of the spring is placed in the spring groove, and the other end is fitted onto the spring post.

[0015] In some embodiments, the housing is provided with a blade holder corresponding to the blade, and the blade holder is provided with a cutting groove for the blade to enter.

[0016] In some embodiments, a torsion spring is installed between the housing and the movable handle, the torsion spring always causing the movable handle to tend to move away from the housing; a U-shaped frame is hinged to the end of the movable handle.

[0017] (III) Beneficial Effects

[0018] Compared with the prior art, the beneficial effects that at least one technical solution adopted in the embodiments of this specification can achieve include at least:

[0019] 1) By setting a double fixing pin structure at the end of the movable handle, the first fixing pin and the second fixing pin bear the force of the blade, avoiding direct contact between the blade and the movable handle; compared with the traditional structure, it greatly reduces the wear rate of the blade and the movable handle caused by direct friction, extends the service life of the blade and the movable handle, and reduces the cost and time of frequent blade replacement and movable handle maintenance.

[0020] 2) The blade is provided with a first slot and a second slot that are adapted to the double fixing pins, and the first fixing pin, the second fixing pin and the center pin are arranged in a triangle. This structural design provides stable support for the blade, making it less likely to shake or shift during the cutting process, thereby significantly improving the stability and reliability of the cutting operation and ensuring the cutting quality. Attached Figure Description

[0021] To more clearly illustrate the technical solutions of the embodiments of this application, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0022] Figure 1 This is a perspective view of a pipe cutter with double fixed pins according to this utility model;

[0023] Figure 2 This is an exploded view of a double-fixed-pin pipe cutter according to this utility model;

[0024] Figure 3 This is a cross-sectional view of a double-fixed-pin pipe cutter according to this utility model;

[0025] Figure 4 This is a perspective view of the connection between the movable handle, blade, and locking component of a double-fixed-pin pipe cutter according to this utility model.

[0026] Figure 5 This is an exploded view of the movable handle, blade, and locking component of a double-fixed-pin pipe cutter according to this utility model.

[0027] Figure 6This is a schematic diagram of the structure of a double-fixed-pin pipe cutter blade according to this utility model;

[0028] The component names corresponding to the various reference numerals in the figure are as follows: 1. Housing; 101. Blade holder; 102. Cutting groove; 2. Movable handle; 201. Insertion groove; 202. First through hole; 203. Second through hole; 204. Spring groove; 3. Blade; 301. First slot; 302. Second slot; 303. Third slot; 306. Locking slot; 31. Limiting plate; 32. Locking plate; 41. First fixing pin; 42. Second fixing pin; 5. Center pin; 6. Locking component; 601. Locking head; 602. Pressing part; 603. Spring post; 7. Spring; 8. Torsion spring; 9. U-shaped frame. Detailed Implementation

[0029] The embodiments of this application will now be described in detail with reference to the accompanying drawings.

[0030] The following specific examples illustrate the implementation of this application. Those skilled in the art can easily understand other advantages and effects of this application from the content disclosed in this specification. Obviously, the described embodiments are only a part of the embodiments of this application, and not all of them. This application can also be implemented or applied through other different specific embodiments, and the details in this specification can also be modified or changed based on different viewpoints and applications without departing from the spirit of this application. It should be noted that, in the absence of conflict, the following embodiments and features in the embodiments can be combined with each other. Based on the embodiments in this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.

[0031] It should be noted that various aspects of embodiments within the scope of the appended claims are described below. It will be apparent that the aspects described herein can be embodied in a wide variety of forms, and any particular structure and / or function described herein is merely illustrative. Based on this application, those skilled in the art will understand that one aspect described herein can be implemented independently of any other aspect, and two or more of these aspects can be combined in various ways. For example, any number and aspects set forth herein can be used to implement the device and / or practice the method. Additionally, this device and / or method can be implemented using structures and / or functionalities other than one or more of the aspects set forth herein.

[0032] It should also be noted that the illustrations provided in the following embodiments are only schematic representations of the basic concept of this application. The illustrations only show the components related to this application and are not drawn according to the number, shape and size of the components in actual implementation. In actual implementation, the form, quantity and proportion of each component can be arbitrarily changed, and the layout of the components may also be more complex.

[0033] Additionally, specific details are provided in the following description to facilitate a thorough understanding of the examples. However, those skilled in the art will understand that practice can be carried out without these specific details.

[0034] Combination Figures 1-6 As shown, this utility model provides a double-fixed-pin pipe cutter, including a housing 1 and a movable handle 2 hinged within the housing 1. For ease of manufacturing, the housing 1 adopts a split structure, that is, it is formed by combining two separate housings. A blade 3 is detachably mounted on the end of the movable handle 2, and the end of the movable handle 2 is provided with a insertion groove 201 for inserting the blade 3. An insertion port is provided on the outer side of the insertion groove 201.

[0035] See Figures 2 to 5 The end of the movable handle 2 is provided with a double fixing pin structure. This structure is configured to bear the force of the blade 3 during shearing, thereby preventing direct contact between the blade 3 and the movable handle 2. The double fixing pin structure includes a first fixing pin 41 and a second fixing pin 42 passing through the insertion slot 201, arranged at an oblique interval. Specifically, the first fixing pin 41 is located at one end of the insertion slot 201, and the second fixing pin 42 is located near the insertion opening of the insertion slot 201. A first slot 301 adapted to the first fixing pin 41 is provided on one side of the blade 3, and a second slot 302 adapted to the second fixing pin 42 is provided inside the blade 3.

[0036] This structure, by incorporating a double-fixed-pin design at the end of the movable handle, allows the first and second fixed pins to bear the force of the blade, preventing direct contact between the blade and the movable handle. Compared to traditional structures, this significantly reduces the wear rate caused by direct friction between the blade and the movable handle, extending their service life and reducing the cost and time associated with frequent blade replacements and handle repairs. Furthermore, this double-fixed-pin structure does not interfere with the quick-release function of the blade; removing the blade simply requires pressing the locking mechanism and pulling it out, making it highly practical.

[0037] In some embodiments, such as Figures 1 to 3As shown, the housing 1 and the movable handle 2 are hinged by a central pin 5. The movable handle 2 can rotate around the central pin 5, thereby causing the blade 3 to move closer to or away from the blade holder 101 of the housing 1. The central pin 5 passes through the insertion groove 201, and the blade 3 is provided with a third slot 303 that matches the central pin 5; the first fixing pin 41, the second fixing pin 42, and the central pin 5 are arranged in a triangle. In this structure, the blade is provided with a first slot and a second slot that match the double fixing pins, and the first fixing pin, the second fixing pin, and the central pin are arranged in a triangle. This structural design provides stable support for the blade, making it less prone to shaking or displacement during cutting, thereby significantly improving the stability and reliability of the cutting operation and ensuring cutting quality.

[0038] In some embodiments, such as Figure 6 As shown, the insertion end of the blade 3 is provided with a limiting plate 31 and a locking plate 32 spaced apart. The first slot 301 and the third slot 303 are arranged opposite each other on both sides of the limiting plate 31, and the second slot 302 is arranged between the limiting plate 31 and the locking plate 32. In this structure, the three slots are reasonably arranged, and the three pins will not interfere with the insertion of the blade 3. When installing the blade 3, it is only necessary to insert it. The design is reasonable.

[0039] In some embodiments, such as Figure 4 and Figure 5 As shown, the end of the movable handle 2 is provided with a first through hole 202 and a second through hole 203. A first fixing pin 41 passes through the first through hole 202, and a second fixing pin 42 passes through the second through hole 203. In order to simplify the structure, the first fixing pin 41 and the second fixing pin 42 have the same structure; this structure makes it easy to install the two pins and reduces the installation difficulty.

[0040] In some embodiments, such as Figures 3 to 5 As shown, a locking member 6 is movably mounted on the outer wall of the insertion slot 201, and the locking member 6 is used to lock the blade 3. The locking member 6 is provided with a locking head 601 that can extend into the insertion slot 201, and the insertion end of the blade 3 is provided with a locking groove 306 that can engage with the locking head 601. When the locking head 601 is placed in the locking groove 306, the blade 3 is locked; when the locking head 601 is disengaged from the locking groove 306, the blade 3 is unlocked. The middle part of the locking member 6 is hinged to the outer wall of the movable handle 2, the locking head 601 is located at one end of the locking member 6, and the other end of the locking member 6 is provided with a pressing part 602. When unlocking, pressing the pressing part 602 causes the locking head 601 to disengage from the locking groove 306.

[0041] In some embodiments, such as Figure 2 , Figure 3 and Figure 5As shown, a spring 7 is installed between the pressing part 602 and the movable handle 2. The spring 7 always tends to make the locking head 601 move toward the insertion groove 201. A spring groove 204 is provided on the movable handle 2, and a spring post 603 is provided at the pressing part 602. One end of the spring 7 is placed in the spring groove 204, and the other end of the spring 7 is fitted on the spring post 603.

[0042] In some embodiments, such as Figure 1 and Figure 2 As shown, the housing 1 is provided with a blade holder 101 corresponding to the blade 3, and the blade holder 101 is provided with a cutting groove 102 for the blade 3 to enter. A torsion spring 8 is installed between the housing 1 and the movable handle 2, and the torsion spring 8 always makes the movable handle 2 tend to move away from the housing 1; a U-shaped frame 9 is hinged to the end of the movable handle 2, and the U-shaped frame 9 can be fitted onto the end of the housing 1 to keep the movable handle 2 in a closed state when stored.

[0043] In this specification, the same or similar parts between the various embodiments can be referred to mutually. Each embodiment focuses on describing the differences from other embodiments. In particular, the descriptions of the embodiments described later are relatively simple, and relevant parts can be referred to the descriptions of the foregoing embodiments.

[0044] The above description is merely a specific embodiment of this application, but the scope of protection of this application is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the technical scope disclosed in this application should be included within the scope of protection of this application. Therefore, the scope of protection of this application should be determined by the scope of the claims.

Claims

1. A double-fixed-pin pipe cutter, comprising a housing (1) and a movable handle (2) hinged within the housing (1), wherein the end of the movable handle (2) is provided with an insertion groove (201) for inserting a blade (3), characterized in that: The end of the movable handle (2) is provided with a double fixing pin structure. The double fixing pin structure is configured to bear the force of the blade (3) during shearing, thereby avoiding direct contact between the blade (3) and the movable handle (2). The double fixing pin structure includes a first fixing pin (41) and a second fixing pin (42) passing through the insertion groove (201). The first fixing pin (41) is arranged at one end of the insertion groove (201), and the second fixing pin (42) is arranged near the insertion port of the insertion groove (201). A first slot (301) adapted to the first fixing pin (41) is provided on one side of the blade (3), and a second slot (302) adapted to the second fixing pin (42) is provided inside the blade (3).

2. The pipe cutter with double fixed pins according to claim 1, characterized in that: The housing (1) and the movable handle (2) are hinged by a center pin (5), which passes through the insertion slot (201). The blade (3) is provided with a third slot (303) that is adapted to the center pin (5). The first fixing pin (41), the second fixing pin (42) and the center pin (5) are arranged in a triangle.

3. The double-fixed-pin pipe cutter according to claim 2, characterized in that: The insertion end of the blade (3) is provided with a limiting plate (31) and a locking plate (32) at intervals. The first slot (301) and the third slot (303) are arranged opposite to each other on both sides of the limiting plate (31), and the second slot (302) is arranged between the limiting plate (31) and the locking plate (32).

4. The pipe cutter with double fixed pins according to claim 1, characterized in that: The end of the movable handle (2) is provided with a first through hole (202) and a second through hole (203), the first fixing pin (41) is inserted into the first through hole (202), and the second fixing pin (42) is inserted into the second through hole (203).

5. The pipe cutter with double fixed pins according to claim 1, characterized in that: A locking member (6) is movably installed on the outer wall of the insertion groove (201). The locking member (6) is provided with a locking head (601) that can extend into the insertion groove (201). The insertion end of the blade (3) is provided with a locking groove (306) that can engage with the locking head (601).

6. The pipe cutter with double fixed pins according to claim 5, characterized in that: The middle part of the locking member (6) is hinged to the outer wall of the movable handle (2), the locking head (601) is provided at one end of the locking member (6), and the other end of the locking member (6) is provided with a pressing part (602).

7. The double-fixed-pin pipe cutter according to claim 6, characterized in that: A spring (7) is installed between the pressing part (602) and the movable handle (2). The spring (7) always tends to move the locking head (601) toward the insertion slot (201). A spring groove (204) is provided on the movable handle (2), and a spring post (603) is provided at the pressing part (602). One end of the spring (7) is placed in the spring groove (204), and the other end is fitted on the spring post (603).

8. The pipe cutter with double fixed pins according to claim 1, characterized in that: The housing (1) is provided with a blade holder (101) corresponding to the blade (3), and the blade holder (101) is provided with a cutting groove (102) for the blade (3) to enter.

9. The pipe cutter with double fixed pins according to claim 1, characterized in that: A torsion spring (8) is installed between the housing (1) and the movable handle (2), and the torsion spring (8) always causes the movable handle (2) to tend to move away from the housing (1); a U-shaped frame (9) is hinged to the end of the movable handle (2).

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