Novel nozzle pliers

Abstract

The utility model relates to the field of hardware tools, in particular to novel nozzle pliers, a pliers head is provided with a pliers blade, a pliers body comprises a pliers handle, a hinging part and an L-shaped connecting part, and the pliers handle, the hinging part and the L-shaped connecting part are integrally formed. The pin shaft penetrates through the two hinging parts, and the two clamp bodies are movably connected through the pin shaft of the hinging parts; a dovetail groove is formed in the vertical face of the L-shaped connecting part, a dovetail protrusion matched with the dovetail groove is arranged on the side face of the tail of the plier head, and the L-shaped connecting part and the plier head are connected in a clamped mode through the dovetail groove and the dovetail protrusion. The tail portion of the tong head is provided with a segmental protruding block, a notch is formed in the outer side of the segmental protruding block, a tong head check block is plugged in the notch, namely, the tong head check block is arranged on the outer side of the segmental protruding block, and the bottom of the outer side of the tong head check block is firmly welded to the L-shaped connecting part. A groove is formed in the horizontal plane of the L-shaped connecting part, and the segmental protruding block and the tong head check block are both arranged in the groove. The utility model has the advantages of easy replacement, cost saving, convenient use, sturdiness and durability and the like.

Description

Technical field:

[0001] The utility model relates to the field of hardware tools, in particular to a novel nozzle pliers. Background technology:

[0002] The head and body of traditional nozzle pliers are integrally formed, and the pliers can only be thrown away if the blade is broken. Although nozzle pliers with replaceable heads are now available on the market, they are all fixed to the pliers body with rivets or screws, and two are required to fix them. As long as the rough objects are cut, the rivets will stretch, causing the left and right heads to open (with a gap); and the pliers are hard (such as high-speed steel) and are easy to break from the rivet holes. Screws are even worse and will loosen. There are also rivets and welding, but welding makes the pliers easy to anneal and scorch (affecting the appearance and easy to blunt), and the pliers are hard and hard. The pliers are made of two different materials, which is not easy to weld firmly or replace. Utility model content:

[0003] The purpose of the utility model is to overcome the above disadvantages and provide a novel nozzle pliers.

[0004] The purpose of the utility model is achieved through the following technical solutions:

[0005] A novel nozzle pliers comprises two identical pliers bodies and two identical pliers heads, the pliers heads are provided with pliers blades, the pliers bodies comprise pliers handles, hinged parts, and L-shaped connecting parts, and the pliers handles, hinged parts, and L-shaped connecting parts are integrally formed;

[0006] The pin passes through the two hinged parts, and the two clamp bodies are movably connected through the pins of the hinged parts;

[0007] A dovetail groove is provided on the vertical surface of the L-shaped connecting part, and a dovetail convex matching the dovetail groove is provided on the side of the tail of the clamp head. The L-shaped connecting part and the clamp head are connected by the dovetail groove and the dovetail convex.

[0008] The tail of the clamp head is provided with a missing section protrusion, the outer side of the missing section protrusion is provided with a notch, and the clamp head stopper is plugged in the notch, that is, the clamp head stopper is arranged on the outer side of the missing section protrusion, and the outer bottom of the clamp head stopper is welded to the L-shaped connecting part;

[0009] A groove is arranged on the horizontal surface of the L-shaped connecting part, and the missing segment protrusion and the clamp head stopper are both arranged in the groove.

[0010] Preferably, an adjusting screw is provided on the clamp head stopper.

[0011] Preferably, the outer bottom of the clamp head stopper is welded to the L-shaped connecting portion. Therefore, the clamp head is usually made of high-speed steel, which is brittle and easy to break after welding, and cannot be directly welded to the L-shaped connecting portion. The clamp head stopper is made of the same material as the L-shaped connecting portion, so the clamp head stopper is welded to the L-shaped connecting portion to form a fixation, which can not only fix the clamp head, but also make it easier to remove the clamp head when replacing the clamp head.

[0012] A stopper groove is provided at the bottom of the dovetail groove, and a second missing protrusion matching the stopper groove is provided at the dovetail protrusion. When the second missing protrusion is provided in the stopper groove, the part of the stopper groove not filled by the second missing protrusion is a second gap, and a second clamp head stopper is provided in the second gap. Therefore, there is inevitably a certain gap between the dovetail groove and the dovetail protrusion, and when shearing hard plastic, the clamp head will bounce left and right in the dovetail groove. By providing the second clamp head stopper embedded and installed between the dovetail protrusion and the dovetail groove, the second clamp head stopper and the second gap are tightly matched, so that the dovetail groove and the dovetail protrusion are more stable and the clamp head is not easy to shake.

[0013] Preferably, the second clamp head stopper is located on the side of the second missing segment protrusion opposite to the clamp blade. Therefore, when the nozzle pliers are in use, the clamp head is subjected to an outward force, and the second clamp head stopper can better limit the clamp head, making the clamp head installation more stable.

[0014] The outer bottom of the second clamp head stopper is welded to the L-shaped connecting portion. Thus, the second clamp head stopper is fixed to the L-shaped connecting portion, which not only plays a fixing role, but also facilitates the removal of the clamp head when the clamp head is replaced.

[0015] Compared with the prior art, the utility model has the following advantages:

[0016] The pliers head of the utility model is easy to replace. After the pliers head is damaged or misaligned after long-term use, the pliers head can be directly replaced without replacing the entire nozzle pliers, thereby reducing costs.

[0017] The pliers head of the utility model is connected to the L-shaped connecting part through a dovetail groove and a dovetail protrusion, the pliers head has no screws or rivet eyes, the fastness of the pliers head is increased, it is not easy to break, and the fastening of the pliers head and the L-shaped connecting part is strengthened, thus preventing the pliers head from loosening after long-term use.

[0018] The utility model can repeatedly trim the blades of the pliers after they are blunt or chipped. When the blade is worn smaller, the adjusting screw on the pliers head block can be adjusted to move the pliers head inward until the two pliers blades are completely closed, which greatly increases the service life of the nozzle pliers and saves replacement costs. The pliers head block ensures that the pliers head cannot move outward when the nozzle pliers are shearing. Description of the drawings:

[0019] Figure 1 It is a front view of the utility model;

[0020] Figure 2 It is a front view of the upper part of the utility model;

[0021] Figure 3 yes Figure 2 Schematic diagram of the AA structure;

[0022] Figure 4 It is a front view of the pliers head;

[0023] Figure 5 It is a front view of the pliers head with the adjustment screw;

[0024] Numbers in the figure: pliers body -1, pliers handle -2, hinged part -3, L-shaped connecting part -4, pliers head 5, dovetail protrusion -6, dovetail groove -7, missing section protrusion -8, pliers head stopper -9, pin shaft -10, adjusting screw -11, pliers blade -12, groove -13, stopper groove -14, second missing section protrusion -15, second pliers head stopper -16. Specific implementation method:

[0025] In order to make the purpose, technical scheme and advantages of the embodiments of the utility model clearer, the technical scheme in the embodiments of the utility model will be clearly and completely described below. Obviously, the described embodiments are part of the embodiments of the utility model, rather than all of the embodiments. The elements and features described in one embodiment of the utility model can be combined with the elements and features shown in one or more other embodiments. It should be noted that for the purpose of clarity, the representation and description of components and processes that are not related to the utility model and are known to ordinary technicians in this field are omitted in the description. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without paying creative work belong to the scope of protection of the utility model.

[0026] The utility model is further described below in conjunction with the accompanying drawings: A novel nozzle pliers, comprising two identical pliers bodies 1 and two identical pliers heads 5, the pliers heads are provided with pliers blades 12, the pliers body 1 comprises a pliers handle 2, a hinged portion 3, and an L-shaped connecting portion 4, the pliers handle 2, the hinged portion 3, and the L-shaped connecting portion 4 are integrally formed;

[0027] The pin shaft 10 passes through the two hinged parts 3, and the two pliers bodies 1 are movably connected through the pin shaft 10 of the hinged parts 3;

[0028] A dovetail groove 7 is provided on the vertical surface of the L-shaped connecting portion 4, and a dovetail protrusion 6 matching the dovetail groove 7 is provided on the side of the tail of the clamp head 5. The L-shaped connecting portion 4 and the clamp head 5 are connected by the dovetail groove 7 and the dovetail protrusion 6. The clamp head is fixed without screw rivets, so that the clamp head is not easy to break;

[0029] The tail of the clamp head 5 is provided with a missing section protrusion 8, and a notch is provided on the outside of the missing section protrusion 8, and a clamp head stopper 9 is plugged in the notch, that is, the clamp head stopper 9 is arranged on the outside of the missing section protrusion 8, and the bottom of the outer side of the clamp head stopper 9 is welded to the L-shaped connecting part 4. The missing section protrusion 8 cooperates with the clamp head stopper 9 so that the clamp head can only move inward but not outward, so that the clamp head can be replaced more conveniently;

[0030] A groove 13 is provided on the horizontal surface of the L-shaped connecting portion 4, and the missing segment protrusion 8 and the clamp head stopper 9 are both placed in the groove 13;

[0031] You can also drill a hole in the middle of the pliers head block and tap the thread to install the screw. When the pliers blade is ground smaller, use a hammer to knock it in to the appropriate position and then push the screw in.

[0032] The dovetail groove 7 is provided with a stopper groove 14 at the bottom, and the dovetail protrusion 6 is integrally formed with a second missing protrusion 15 that matches the stopper groove 14. When the second missing protrusion 15 is embedded in the stopper groove 14, the part of the stopper groove 14 that is not filled by the second missing protrusion 15 is a second gap, and a second clamp head stopper 16 is provided in the second gap. Therefore, there is inevitably a certain gap between the dovetail groove and the dovetail protrusion, and when shearing hard plastic, the clamp head will bounce left and right in the dovetail groove. By setting the second clamp head stopper to be embedded and installed between the dovetail protrusion and the dovetail groove, the second clamp head stopper and the second gap are tightly matched, so that the dovetail groove and the dovetail protrusion are more stable and the clamp head is not easy to shake.

[0033] The second clamp head stopper 16 is located on the side of the second missing segment protrusion 15 opposite to the clamp blade 12. Therefore, when the nozzle pliers are in use, the clamp head is subjected to an outward force, and the second clamp head stopper can better limit the clamp head, making the clamp head installation more stable.

[0034] The outer bottom of the second clamp stopper 16 is welded to the L-shaped connecting portion 4. Therefore, the clamp head is usually made of high-speed steel, which is brittle and easy to break after welding, and cannot be directly welded to the L-shaped connecting portion. The second clamp stopper is made of the same material as the L-shaped connecting portion, so the second clamp stopper is welded to the L-shaped connecting portion to form a fixation, which can not only fix the clamp head, but also make it easier to remove the clamp head when replacing the clamp head. During installation, align the dovetail protrusion 6 on the pliers head 5 with the dovetail groove on the L-shaped mounting portion 4, and after adjusting to the appropriate position, insert the pliers head block 9 into the gap, and insert the second pliers head block 16 into the block groove 14, and expose a section, and use a hammer to hit the extra section, so that the pliers head block 9 is firmly swollen in the gap, and the second pliers head block 16 is firmly swollen in the block groove 14, and then the outer side of the nozzle pliers is polished, and a small hole is drilled at the connection between the L-shaped connecting portion 4 and the pliers head block 9, and then the small hole is welded and polished by cold welding, so that only one welding point can fix the pliers head block 9 and the pliers body and the welding point cannot be seen, so the installation is completed. When replacing the pliers head 5, use a hammer to knock the pliers head 5 inward so that the pliers head 5 is taken out from the inside. The pliers head block 9 does not rely on the pliers head 5, and only needs to be gently knocked off by a screwdriver. Repeat the above installation steps when installing a new pliers head.

[0035] When the pliers blade 12 on the pliers head 5 is worn, it can be trimmed. When the blade is worn smaller, use a hammer to knock the pliers head 5 inwards first, so that the pliers head 5 moves inwards until the two pliers blades 12 are completely closed, and then adjust the adjusting screw 11 on the pliers head stopper 9 to make it support the missing section protrusion 8 at the tail of the pliers head 5. If the pliers head 5 needs to be replaced, it is still necessary to knock off the pliers head 5 and the pliers head stopper 9 together.

[0036] The main technical point of the utility model is that the rear side of the pliers head is cut into at least one convex block by wire cutting, and then a section of the outer side of the convex block is cut off to form a missing convex block 8; at least one convex block is cut into the surface of the dovetail convex 6 by wire cutting, and then a section of the outer side of the convex block is cut off to form a second missing convex block 15, a block groove 14 for inserting the second missing convex block 15 is provided in the dovetail groove, and then the dovetail convex 6 of the pliers head is placed in the dovetail groove 7 of the L-shaped connecting portion 4 at the front end of the pliers body, and at the same time, the second missing convex block 15 is inserted into the block groove 14, and then the second pliers head block 16 is clamped in the block groove 14, and the second pliers head block 16 is connected to the second missing convex block 15 as a whole. In addition, the pliers head block 9 is clamped in the notch outside the missing convex block 8 and connected to the missing convex block 8 as a whole. The pliers head block 9 and the second pliers head block 16 should be of the same material as the pliers body. The second clamp head stopper 16 is firmly swollen in the stopper groove 14, and there will be a gap between the dovetail groove 7 and the dovetail convex 6. In this way, even if there is a large gap, the clamp head 5 will not swing. After the outer side of the clamp head is smoothed as a whole, a small hole is drilled between the clamp body and the clamp head stopper and the second clamp head stopper respectively, and the small hole is welded with cold welding and then smoothed. In this way, only one welding point will firmly fix the clamp head stopper and the second clamp head stopper, and the welding point cannot be seen. It is beautiful and practical and can completely solve the above shortcomings, so that the clamp head only moves inward and not outward. The swollen clamp head stopper 9 and the second clamp head stopper 16 ensure that the clamp head will not swing, and disassembly only requires knocking inward.

[0037] Finally, it should be noted that: although the utility model and its advantages have been described in detail above, it should be understood that various changes, substitutions and transformations can be made without exceeding the spirit and scope of the utility model defined by the attached claims. Moreover, the scope of the utility model is not limited to the specific embodiments of the processes, devices, means, methods and steps described in the specification. It will be easily understood by those of ordinary skill in the art from the disclosure of the utility model that according to the utility model, existing and future processes, devices, means, methods or steps that perform substantially the same functions as the corresponding embodiments described herein or obtain substantially the same results as the corresponding embodiments described herein can be used. Therefore, the attached claims are intended to include such processes, devices, means, methods or steps within their scope.

Claims

1. A novel nozzle pliers, comprising two identical pliers bodies (1) and two identical pliers heads (5), wherein the pliers heads (5) are provided with pliers blades (12), Features: The pliers body (1) comprises a pliers handle (2), a hinged portion (3), and an L-shaped connecting portion (4); the pliers handle (2), the hinged portion (3), and the L-shaped connecting portion (4) are integrally formed; The pin shaft (10) passes through the two hinged parts (3), and the two pliers bodies (1) are movably connected via the pin shaft (10) of the hinged parts (3); A dovetail groove (7) is provided on the vertical surface of the L-shaped connecting portion (4), and a dovetail protrusion (6) matching the dovetail groove (7) is provided on the side surface of the tail of the clamp head (5), and the L-shaped connecting portion (4) and the clamp head (5) are connected by snapping together through the dovetail groove (7) and the dovetail protrusion (6); The tail of the clamp head (5) is provided with a missing section protrusion (8), the outer side of the missing section protrusion (8) is provided with a notch, and the notch is filled with a clamp head stopper (9), that is, the clamp head stopper (9) is arranged on the outer side of the missing section protrusion (8); A groove (13) is provided on the horizontal surface of the L-shaped connecting portion (4), and the missing segment protrusion (8) and the clamp head stopper (9) are both placed in the groove (13).

2. A new nozzle pliers according to claim 1, Features: An adjusting screw (11) is inserted into the clamp head stopper (9).

3. A new nozzle pliers according to claim 1, Features: The outer bottom of the clamp head stopper (9) is firmly welded to the L-shaped connecting portion (4).

4. A new nozzle pliers according to claim 1, Features: A stopper groove (14) is provided at the bottom of the dovetail groove (7), and the dovetail protrusion (6) is provided with a second missing protrusion (15) that cooperates with the stopper groove (14). When the second missing protrusion (15) is arranged in the stopper groove (14), the portion of the stopper groove (14) that is not filled by the second missing protrusion (15) is a second gap, and a second clamp stopper (16) is arranged in the second gap.

5. A new nozzle pliers according to claim 4, Features: The second pliers head stopper (16) is located on a side of the second missing segment protrusion (15) that is opposite to the pliers blade (12).

6. A new nozzle pliers according to claim 4, Features: The outer bottom of the second clamp stopper (16) is firmly welded to the L-shaped connecting portion (4).

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