Fire tongs

Abstract

A pair of fire tongs 100 includes a first anti-slip strip 50 mounted on a first mounting portion 31 of a first mounting arm 30, first anti-slip strip 50 comprising a plurality of first teeth 51 protru

Description

TECHNICAL FIELD

[0001] The present disclosure relates to the technical field of clamping tools, in particular to fire tongs. BACKGROUND

[0002] Fire tongs, as a traditional gripping tool, are widely used in fireplaces, barbecues, and similar settings for grasping and moving wood, charcoal, and other fuels. Traditional fire tongs are typically formed integrally through forging processes, consisting of two force arms connected by a pivot, along with gripping arms located at the front ends of the force arms.

[0003] In related technologies, due to weight limitations, fire tongs tend to have a relatively thin thickness, making it difficult to grasp larger or irregular pieces of wood or charcoal. To improve slip resistance, some fire tongs feature a row of serrated tooth structures machined on the gripping arms. However, when dealing with certain irregular objects to be gripped, even with a row of serrated teeth processed on the fire tongs, the contact area between the fire tongs and the gripped object remains small, leading to issues such as uneven force distribution. This makes it difficult to securely hold the gripped object, resulting in inconvenient operation. SUMMARY

[0004] In view of this, the present disclosure provides a pair of fire tongs, which is beneficial to improve the stability and reliability of clamping, thereby helping to reduce the difficulty of operation and enhance the user experience.

[0005] To realize the above objective, the present disclosure provides fire tongs, including: a first arm; and a second arm rotationally connected to the first arm; a first clamping arm connected to the first arm, the first clamping arm having a first mounting portion; and a second clamping arm connected to the second arm, the second clamping arm being disposed opposite to the first mounting portion; and a first anti-slip strip mounted on the first mounting portion, the first anti-slip strip being provided with a plurality of first teeth protruding toward the second clamping arm; the first arm and the second arm are configured to move relative to each other toward and away from one another, such that a movement of the first arm and the second arm toward each other drives the first clamping arm and the second clamping arm to clamp, and a movement away from each other drives the first clamping arm and the second clamping arm to separate.

[0006] Furthermore, the second clamping arm comprises a second mounting portion, the first mounting portion is disposed opposite to the second mounting portion; and the fire tongs further comprise a second anti-slip strip mounted on the second mounting portion, the second anti-slip strip is provided with a plurality of second teeth protruding toward the first clamping arm.

[0007] Furthermore, along a thickness direction of the first anti-slip strip, the first antislip strip being provided with a plurality of first through holes penetrating through the first anti-slip strip, the plurality of first teeth are located in the plurality of first through holes; each of the plurality of first teeth comprises a first pointed angle and two first connecting ends located at opposite ends of the first pointed angle, the first pointed angle is facing toward the second mounting portion, and the two first connecting ends are connected to the first anti-slip strip; and along a thickness direction of the second anti-slip strip, the second anti-slip strip is provided with a plurality of second through holes penetrating through the second anti-slip strip, the plurality of second teeth is located in the second through holes; each of the plurality of second teeth comprises a second pointed angle and two second connecting ends located at opposite ends of the second pointed angle, the second pointed angle is faced toward the first mounting portion, and the two second connecting ends are connected to the second anti-slip strip.

[0008] Furthermore, along a length direction of the first anti-slip strip, the first through holes are located between the two first connecting ends; and along a length direction of the second anti-slip strip, the second through holes are located between the two second connecting ends.

[0009] Furthermore, the plurality of first teeth are arranged in multiple columns, each of the multiple columns of the plurality of first teeth comprises at least two first teeth of the plurality of first teeth arranged along a length direction of the first anti-slip strip, and the multiple columns of the plurality of first teeth are arranged along a width direction of the first anti-slip strip; and the plurality of second teeth is arranged in multiple columns, each column of multiple columns of the plurality of second teeth comprises at least two second teeth of the plurality of second teeth arranged along a length direction of the second anti-slip strip, and the multiple columns of the plurality of second teeth are arranged along a width direction of the second anti-slip strip.

[0010] Furthermore, the first anti-slip strip is provided with at least three columns of the plurality of first teeth, and the second anti-slip strip is provided with at least three columns of the plurality of second teeth.

[0011] Furthermore, the first anti-slip strip is detachably connected to the first clamping arm; and the second anti-slip strip is detachably connected to the second clamping arm.

[0012] Furthermore, the first anti-slip strip is welded to the first clamping arm; and the second anti-slip strip is welded to the second clamping arm.

[0013] Furthermore, an end portion of the first clamping arm away from the first arm is provided with a third mounting portion; and the fire tongs further comprise a first end plate mounted on the third mounting portion; wherein the first end plate is provided with a plurality of third teeth protruding toward the second clamping arm; and an end portion of the second clamping arm away from the second arm is provided with a fourth mounting portion; and the fire tongs further comprise a second end plate mounted on the fourth mounting portion; wherein the second end plate is provided with a plurality of fourth teeth protruding toward the first clamping arm.

[0014] Furthermore, the fire tongs further comprise: a first pivot arm, one end of the first pivot arm is connected to the first arm, and the other end of the first pivot arm away from the first arm is connected to the first clamping arm; a second pivot arm, one end of the second pivot arm is connected to the second arm, and an end of the second pivot arm away from the second arm is connected to the second clamping arm; the first pivot arm and the second pivot arm are arranged in a crossed and pivotally connected manner; when the first arm and the second arm move toward each other, the first clamping arm and the second clamping arm are driven to clamp, and when the first arm and the second arm move away from each other, the first clamping arm and the second clamping arm are driven to separate.

[0015] Furthermore, the first arm, the first clamping arm, the second arm, and the second clamping arm are hollow, and the first pivot arm and the second pivot arm are solid.

[0016] Furthermore, the first clamping arm comprises a first section and a second section that are connected, the first section is connected to the first pivot arm, the first section is recessed with a first arc-shaped portion, and the second section is inclined in a direction away from the second clamping arm; the second clamping arm comprises a third section and a fourth section that are connected, the third section is connected to the second pivot arm, the third section is recessed with a second arc-shaped portion; and the first arcshaped portion and the second arc-shaped portion are configured to enclose to form a clamping space, and the fourth section is inclined in a direction away from the first clamping arm.

[0017] Furthermore, the fire tongs further comprise: a first fixing sleeve is defined with a first groove, a portion of the first pivot arm is disposed in the first groove, a portion of the first clamping arm is disposed in the first groove, and the first fixing sleeve is fixedly connected to the first pivot arm and the first clamping arm respectively; and a second fixing sleeve provided with a second groove, and the second groove is disposed opposite to the first groove, a portion of the second pivot arm is disposed in the second groove, a portion of the second clamping arm is disposed in the second groove, and the second fixing sleeve is fixedly connected to the second pivot arm and the second clamping arm respectively.

[0018] Furthermore, the first fixing sleeve is welded to the first pivot arm and the first clamping arm, and the second fixing sleeve is welded to the second pivot arm and the second clamping arm; the first arm and the second arm are hollow, a portion of the first pivot arm is inserted into the first arm and welded to the first arm, and a portion of the second pivot arm is inserted into the second arm and welded to the second arm.

[0019] Furthermore, one end of the first pivot arm is inserted into the first arm and welded to the first arm, and the other end of the first pivot arm is inserted into the first clamping arm and welded to the first clamping arm; and one end of the second pivot arm is inserted into the second arm and welded to the second arm, and the other end of the second pivot arm is inserted into the second clamping arm and welded to the second clamping arm.

[0020] Furthermore, the fire tongs further comprise: a first heat insulation sleeve sleeved on one end of the first arm away from the first clamping arm; and a second heat insulation sleeve sleeved on one end of the second arm away from the second clamping arm.

[0021] Furthermore, the fire tongs further comprise: a first heat insulation handle having a first portion, a second portion, and a third portion connected in sequence, both the first portion and the third portion are connected to the first arm; and the first portion, the second portion, and the third portion are enclosed with the first arm to form a first clearance space; and a second heat insulation handle having a fourth portion, a fifth portion, and a sixth portion connected in sequence, both the fourth portion and the sixth portion are connected to the second arm; and the fourth portion, the fifth portion, and the sixth portion are enclosed with the second arm to form a second clearance space.

[0022] The fire tongs of the present disclosure, including: a first arm; and a second arm rotationally connected to the first arm; a first clamping arm connected to the first arm, the first clamping arm having a first mounting portion; and a second clamping arm connected to the second arm, the second clamping arm being disposed opposite to the first mounting portion; and a first anti-slip strip mounted on the first mounting portion, the first anti-slip strip being provided with a plurality of first teeth protruding toward the second clamping arm; the first arm and the second arm are configured to move relative to each other toward and away from one another, such that a movement of the first arm and the second arm toward each other drives the first clamping arm and the second clamping arm to clamp, and a movement away from each other drives the first clamping arm and the second clamping arm to separate. By providing a detachable first anti-slip strip, the number, distribution, and dimensions of the first teeth can be designed with greater freedom, such that the design of the first teeth is no longer constrained by the structure of the main body of the fire tongs. Through a more optimized design of the number, distribution, and dimensions of the first teeth, the clamping contact area between the tongs and the workpiece is advantageously increased, and torque is more effectively distributed, thereby enhancing the stability and reliability of the clamping action of the tongs. Furthermore, the separate design of the first anti-slip strip permits the first teeth to be formed from a material different from that of the remaining portions of the tongs, thereby allowing greater flexibility in balancing cost considerations with material performance requirements. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] FIG. 1 is a schematic structural diagram of fire tongs according to an embodiment of the present disclosure.

[0024] FIG. 2 is an exploded view of the fire tongs in FIG. 1.

[0025] FIG. 3 is a schematic structural diagram of a first anti-slip strip of the fire tongs according to an embodiment of the present disclosure.

[0026] FIG. 4 is a partial enlarged view of a portion A in FIG. 3.

[0027] FIG. 5 is a schematic structural diagram of a second anti-slip strip of the fire tongs according to an embodiment of the present disclosure.

[0028] FIG. 6 is a partial enlarged view of portion B in FIG. 5.

[0029] FIG. 7 is an exploded view of the fire tongs according to an embodiment of the present disclosure.

[0030] FIG. 8 is an exploded view of the fire tongs according to another embodiment of the present disclosure.

[0031] FIG. 9 is a schematic structural diagram of the fire tongs according to another embodiment of the present disclosure.

[0032] Description of the reference numeral Description Reference numeral Description Reference numeral fire tongs 100 second through hole 62 first arm 10 first end plate 70 second arm 20 third tooth 71 first clamping arm 30 second end plate 80 first mounting portion 31 fourth tooth 81 third mounting portion 32 first pivot arm 101 first section 301 second pivot arm 102 first arc-shaped portion 3011 first fixing sleeve 103 second section 302 first groove 1031 second clamping arm 40 second fixing sleeve 104 second mounting portion 41 second groove 1041 fourth mounting portion 42 first heat insulation sleeve 105 third section 401 second heat insulation sleeve 106 second arc-shaped portion 4011 first heat insulation handle 107 fourth section 402 first portion 1071 first anti-slip strip 50 second portion 1072 first tooth 51 third portion 1073 first pointed angle 511 first clearance space 107a first connecting end 512 second heat insulation handle 108 first through hole 52 fourth portion 1081 second anti-slip strip 60 fifth portion 1082 second tooth 61 sixth portion 1083 second sharp comer 611 second clearance space 108a second connecting end 612 DETAILED DESCRIPTION OF THE EMBODIMENTS

[0033] It should be noted that, unless otherwise clearly specified and defined, terms such as “mount,” “connect,” “couple,” and “fix” should be interpreted in a broad sense. For example, it may be a fixed connection, a detachable connection, or an integral connection. When a component is considered to be “connected” to another component, it may be directly connected to the other component or intervening components may be present. When a component is considered to be “disposed on” another component, it may be directly disposed on the other component or intervening components may be present.

[0034] Unless otherwise specified, the term “plurality” as used herein refers to two or more.

[0035] Terms such as “first” and “second” are used merely to distinguish different objects and should not be construed as indicating or implying relative importance, or implicitly indicating the number, specific order, or primary-secondary relationship of the technical features referred to.

[0036] The term “perpendicular” is used to describe an ideal state between two components. In actual production or use, a state approximately perpendicular may exist between the two components. For example, with numerical description, perpendicular may refer to an angle range between two straight lines of 90°±10°, perpendicular may also refer to a dihedral angle range between two planes of 90°±10°, and perpendicular may further refer to an angle range between a straight line and a plane of 90°±10°.

[0037] The term “parallel” is used to describe an ideal state between two components. In actual production or use, a state approximately parallel may exist between the two components. For example, with numerical description, parallel may refer to an angle range between two straight lines of 0°±10°, parallel may also refer to a dihedral angle range between two planes of 0°±10°, and parallel may further refer to an angle range between a straight line and a plane of 0°±10°.

[0038] It should be appreciated that the dimensions of the components shown in the drawings are provided for better understanding and more convenient description, and the present disclosure is not limited to the dimensions shown in the drawings. To make the present disclosure clear, elements unrelated to the description are omitted from the details of this specification.

[0039] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by those skilled in the technical field to which the present disclosure belongs. The terms used in the specification of the present disclosure are merely for the purpose of describing specific embodiments and are not intended to limit the present disclosure.

[0040] Some embodiments of the present disclosure will be described below in conjunction with the accompanying drawings. In the absence of conflict, the following embodiments and features in the embodiments may be combined with each other. In addition, dashed lines involved in the drawings of the present disclosure do not represent physical structures and are merely for facilitating distinction of different features.

[0041] Referring to FIGS. 1 and 2, some embodiments of the present disclosure provide a pair of fire tongs 100, the fire tongs 100 include a first arm 10, a second arm 20, a first clamping arm 30, a second clamping arm 40, and a first anti-slip strip 50. The second arm 20 is rotationally connected to the first arm 10. The first clamping arm 30 is connected to the first arm 10, and the first clamping arm 30 has a first mounting portion 31. The second clamping arm 40 is connected to the second arm 20, and the second clamping arm 40 is disposed opposite to the first mounting portion 31. The first anti-slip strip 50 is mounted on the first mounting portion 31, and the first anti-slip strip 50 protrudes toward the second clamping arm 40 with a plurality of first teeth 51. Therein, the first arm 10 and the second arm 20 are configured to be capable of approaching each other and moving away from each other, such that a movement of the first arm and the second arm toward each other drives the first clamping arm 30 and the second clamping arm 40 to clamp, and to move away from each other to separate the first clamping arm 30 and the second clamping arm 40.

[0042] The applicant has found during use of conventional fire tongs that conventional fire tongs typically have a row of continuous serrated teeth directly forged on the clamping arms thereof, the teeth having the same thickness as a main body of the fire tongs 100. This integral forming manufacturing method closely associates the main body of the fire tongs 100 with the anti-slip structure, thereby introducing numerous limitations. Due to constraints from forging processes, material costs, and overall heat treatment deformation control, the shape, size, and layout of the teeth on conventional fire tongs are relatively uniform, typically only one column of teeth or two columns of very thin teeth. This results in fewer contact points in contact with irregular wood surfaces, concentrated stress, easy generation of large lateral torque. Resulting in not only unstable gripping, but also possible loosening of the hinge of the fire tongs 100 or deformation of the clamping arms due to torque, posing a risk of burning objects falling and affecting service life.

[0043] In the embodiments of the present disclosure, the anti-slip strip is manufactured and mounted as an independent component. The first clamping arm 30 is provided with the first mounting portion 31, and the first anti-slip strip 50 can be firmly mounted on the mounting portion by means such as welding, bolting, or snap connection. This design provides greater design freedom: the number, size, geometric shape, arrangement, and even material of the first teeth 51 can be independently designed and optimized independently of the main body of the fire tongs 100, no longer limited by traditional forging processes. For example, the teeth on the anti-slip strip can be arranged in multiple columns, and the width, size, and position of the teeth in each column can be set as needed, which is beneficial for increasing the gripping area between the fire tongs 100 and the gripped object and for dispersing torque. As another example, the width of the anti-slip strip can be designed to be wider than the clamping arms themselves, thereby providing space for arranging multiple columns of teeth. As yet another example, the material of the anti-slip strip can be set different from other parts of the fire tongs 100, and the anti-slip strip can employ a material with strength superior to that of other parts of the fire tongs 100, thereby helps to reduce the risk of deformation of the first teeth 51 under force, without needing to set the entire fire tongs 100 to such a superior strength material, which is beneficial for balancing costs. This liberation in design is beneficial for improving the gripping performance of the fire tongs 100, and for increasing the effective contact area and contact points with the gripped object, to more uniformly disperse the gripping force, effectively resist lateral torque, thereby beneficial for achieving better gripping stability and reliability.

[0044] In some embodiments, the first clamping arm 30 is directly connected to the first arm 10. In another embodiment, the first clamping arm 30 is indirectly connected to the first arm 10 via one or more other intermediate components.

[0045] In some embodiments, the second clamping arm 40 is directly connected to the second arm 20. In another embodiment, the second clamping arm 40 is indirectly connected to the second arm 20 via one or more other intermediate components.

[0046] In some embodiments, referring to FIGS. 1 and 2, the second clamping arm 40 includes a second mounting portion 41, with the first mounting portion 31 disposed opposite to the second mounting portion 41. The fire tongs 100 further include a second anti-slip strip 60 mounted on the second mounting portion 41, wherein the second anti-slip strip 60 is provided with a plurality of second teeth 61 protruding toward the first mounting portion 31. In the present embodiment, the first anti-slip strip 50 and the second anti-slip strip 60 are provided simultaneously. The double-sided anti-slip configuration, in which independent anti-slip strips are disposed on both gripping arms, which advantageously further improves the anti-slip performance of the fire tongs 100 during gripping. When the fire tongs 100 grip an object to be gripped, the first teeth 51 and the second teeth 61 can simultaneously bite into the surface of the object to be gripped, forming a symmetrical and balanced gripping force. Compared with providing the first anti-slip strip 50 on only one side, simultaneously providing the first anti-slip strip 50 and the second anti-slip strip 60 nearly doubles the gripping contact area and the number of biting points, which advantageously enhances resistance to slippage and torsional stability. When the object to be gripped is a cylindrical or irregularly shaped combustible material (such as wood or charcoal), the plurality of first teeth 51 and the second teeth 61 can adaptively embed into the surface, which advantageously reduces the likelihood of the wood rolling or slipping due to uneven force on one side, thereby improving operational safety.

[0047] In some embodiments, referring to FIGS. 3 and 4, along a thickness direction of the first anti-slip strip 50, the first anti-slip strip 50 is provided with a plurality of first through-holes 52 penetrating therethrough, with each first tooth 51 located within a corresponding first through-hole 52. Each first tooth 51 includes a first pointed angle 511 and two first connecting ends 512 located at opposite ends of the first pointed angle 511, the first pointed angle 511 facing toward the second mounting portion 41, and the two first connecting ends 512 are connected to the first anti-slip strip 50.

[0048] In the foregoing embodiments, since the two first connecting ends 512 provide overall support for the plurality of first teeth 51, and the plurality of first through-holes 52 provide deformation space for the plurality of first teeth 51, minor elastic deformation of the plurality of first teeth 51 is permitted, which facilitates deeper and more conforming embedding of the plurality of first teeth 51 into the object to be gripped, particularly when the surface of the object is uneven, thereby providing improved adaptability. Additionally, the provision of the plurality of first through-holes 52 serves to reduce the weight of the first anti-slip strip 50 itself, which advantageously optimizes the overall weight distribution and handling feel of the fire tongs 100. Furthermore, the first teeth 51 may be specifically manufactured by stamping, the shapes of the plurality of first through-holes 52 and the plurality of first teeth 51 are punched out simultaneously via a stamping process. The structures of the plurality of first through-holes 52 and the plurality of first teeth 51 can be formed in a single stamping operation, thereby advantageously reducing processing steps and costs.

[0049] In some embodiments, referring to FIGS. 5 and 6, along the thickness direction of the second anti-slip strip 60, the second anti-slip strip 60 is provided with a plurality of second through-holes 62 penetrating therethrough, with each second tooth 61 located within a corresponding second through-hole 62. Each second tooth 61 includes a second pointed angle 611 and second connecting ends 612 located at opposite ends of the second pointed angle 611, wherein the second pointed angle 611 faces toward the first mounting portion 31, and both second connecting ends 612 are connected to the second anti-slip strip 60.

[0050] In the foregoing embodiments, since the second connecting ends 612 provide overall support for the plurality of second teeth 61, and the plurality of second through-holes 62 provide deformation space for the plurality of second teeth 61, minor elastic deformation of the plurality of second teeth 61 is permitted, which facilitates deeper and more conforming embedding of the plurality of second teeth 61 into the object to be gripped, particularly when the surface of the object is uneven, thereby providing improved adaptability. Additionally, the provision of the plurality of second through-holes 62 serves to reduce the weight of the second anti-slip strip 60 itself, which advantageously optimizes the overall weight distribution and handling feel of the fire tongs 100. Furthermore, the plurality of second teeth 61 may be specifically manufactured by stamping, wherein the shapes of the plurality of second through-holes 62 and the plurality of second teeth 61 are punched out simultaneously via a stamping process. That is, the structures of the plurality of second through-holes 62 and the plurality of second teeth 61 can be formed in a single stamping operation, thereby advantageously reducing processing steps and costs.

[0051] In some embodiments, referring to FIGS. 3 and 4, along the length direction of the first anti-slip strip 50, each first through-hole 52 is located between the two first connecting ends 512 of a corresponding first tooth 51. This means that the connection points of the first tooth 51 are located on both sides of the first through-hole 52 along the length direction of the first anti-slip strip 50, with the first pointed angle 511 of the first tooth 51 generally positioned at a center of the first through-hole 52. This symmetrical support structure ensures that, when the first tooth 51 is subjected to vertical pressure and lateral frictional forces from the wood, stress is uniformly transmitted through the two first connecting ends 512 to the body of the first anti-slip strip 50, reducing the risk of stress concentration caused by single-point loading, thereby advantageously improving the structural strength and fracture resistance of the first tooth 51. Additionally, this structure of the first tooth 51 more effectively inhibits movement of the gripped object along the length direction of the first anti-slip strip 50, thereby advantageously reducing the likelihood of the gripped object detaching.

[0052] In some embodiments, referring to FIGS. 5 and 6, along the length direction of the second anti-slip strip 60, each second through-hole 62 is located between the two second connecting ends 612 of the corresponding second tooth 61. This means that the connection points of the second tooth 61 are located on both sides of the second through-hole 62 along the length direction of the second anti-slip strip 60, with the second pointed angle 611 of the second tooth 61 generally positioned at the center of the second through-hole 62. This symmetrical support structure ensures that, when the second tooth 61 is subjected to vertical pressure and lateral frictional forces from the wood, stress is uniformly transmitted through the two second connecting ends 612 to the body of the second anti-slip strip 60, reducing the risk of stress concentration caused by single-point loading, thereby advantageously improving the structural strength and fracture resistance of the second tooth 61. Additionally, this structure of the second tooth 61 more effectively inhibits movement of the gripped object along the length direction of the second anti-slip strip 60, thereby advantageously reducing the likelihood of the gripped object detaching.

[0053] In some embodiments, referring to FIG. 4, the plurality of first teeth 51 are arranged in multiple columns, each column of the plurality of first teeth 51 includes at least two first teeth 51 arranged along the length direction of the first anti-slip strip 50, and the multiple columns of first teeth 51 are arranged along the width direction of the first anti-slip strip 50.

[0054] Compared to the narrow single row of serrations on the conventional fire tongs, the multiple columns of first teeth 51 in the above embodiments increase the contact area with the clamped object in the width direction. The multiple columns of first teeth 51 simultaneously bite into the surface of the clamped object, forming a plurality of dispersed support points and friction surfaces. This design advantageously enhances torsional resistance. In clamping operations with conventional fire tongs, particularly when attempting to move or flip a clamped object having an unstable center of gravity or an irregular shape, a torque tending to misalign the first clamping arm 30 and the second clamping arm 40 is readily generated. The conventional single row of teeth, due to its narrow contact line, has limited ability to resist such torsion. In contrast, the multiple-row first teeth 51 design of the present disclosure establishes a plurality of contact points in the width direction, forming a stable surface contact or multi-point line contact, which advantageously resists and disperses such torsional torque, reduces the likelihood of accidental opening of the jaws, improves the stability of the clamping process, and lowers the risk of the burning material falling.

[0055] In some embodiments, referring to FIG. 6, a plurality of second teeth 61 are arranged in multiple columns, each row of the plurality of the multiple columns of the plurality second teeth 61 includes at least two second teeth 61 arranged along the length direction of the second anti-slip strip 60, and the multiple columns of the plurality of second teeth 61 are arranged along the width direction of the second anti-slip strip 60.

[0056] Compared to the narrow single row of serrations on the conventional fire tongs, the multiple columns of second teeth 61 in the above embodiments increase the contact area with the clamped object in the width direction. The multiple columns of second teeth 61 simultaneously bite into the surface of the clamped object, forming a plurality of dispersed support points and friction surfaces. This design advantageously enhances torsional resistance. The multiple columns of the plurality of second teeth 61 design of the present disclosure establishes a plurality of contact points in the width direction, forming a stable surface contact or multi-point line contact, which reduces the likelihood of accidental opening of the jaws, improves the stability of the clamping process, and lowers the risk of the burning material falling.

[0057] In some embodiments, the first anti-slip strip 50 is provided with at least three columns of first teeth 51, and the second anti-slip strip 60 is provided with at least three columns of second teeth 61. Three or more columns of first teeth 51 and second teeth 61 advantageously expand the effective working width of the clamping surface, enabling the torsional resistance performance and clamping stability to reach a higher level.

[0058] It is to be understood that the width of the tooth columns can be flexibly designed according to the overall size of the fire tongs 100 and the usage requirements. For example, the width of the clamping arms can be fully utilized by designing the antislip strips to be as wide as possible so as to accommodate more tooth columns. Such flexibility and scalability are difficult to achieve with integral forging processes.

[0059] It is to be understood that the first teeth 51 and the second teeth 61 in the above embodiments are generally configured in a triangular shape. In other embodiments, the first teeth 51 and the second teeth 61 may also have other shapes, for example, the first teeth 51 and the second teeth 61 may be generally conical, cylindrical, pyramidal, trapezoidal, or the like, which are not exhaustively enumerated herein.

[0060] In some embodiments, the first anti-slip strip 50 is detachably connected to the first clamping arm 30. Such detachable connection may be achieved in various ways, for example, by providing corresponding snap-fit structures on the first anti-slip strip 50 and the first mounting portion 31, by employing bolt fastening, or by designing an insertion configuration secured by a locking pin, without specific limitation herein.

[0061] In the above embodiments, with the first anti-slip strip 50 adopting a detachable design, a user or maintenance personnel can easily remove a worn first anti-slip strip 50 from the first clamping arm 30 and replace it with a new anti-slip strip having sharp teeth. The detachable design provides the first anti-slip strip 50 with improved maintainability and potential for extended service life. Furthermore, the user can replace the first anti-slip strip 50 with ones having different tooth shapes or sizes according to different usage scenarios (such as clamping small charcoal pieces or large firewood), thereby enhancing the adaptability of the tool.

[0062] In some embodiments, the second anti-slip strip 60 is detachably connected to the second clamping arm 40, for example, by providing corresponding snap-fit structures on the second anti-slip strip 60 and the second mounting portion 41, by employing bolt fastening, or by designing an insertion configuration secured by a locking pin, without specific limitation herein.

[0063] In the above embodiments, with the second anti-slip strip 60 adopting a detachable design, a user or maintenance personnel can easily remove a worn second antislip strip 60 from the second clamping arm 40 and replace it with a new anti-slip strip having sharp teeth. The detachable design provides the second anti-slip strip 60 with improved maintainability and potential for extended service life. Furthermore, the user can replace the second anti-slip strip 60 with ones having different tooth shapes or sizes according to different usage scenarios (such as clamping small charcoal pieces or large firewood), thereby enhancing the adaptability of the tool.

[0064] In some embodiments, the first anti-slip strip 50 is welded to the first clamping arm 30. The welded connection provides high structural strength and reliability, ensuring that the first anti-slip strip does not readily loosen or displace during long-term, high-intensity use. The welding process enables a continuous and uniform connection, integrating the first anti-slip strip 50 with the first clamping arm 30 as a unitary structure, which advantageously ensures efficient force transmission.

[0065] In some embodiments, the second anti-slip strip 60 is welded to the second clamping arm 40. The welded connection provides high structural strength and reliability, ensuring that the second anti-slip strip does not readily loosen or displace during longterm, high-intensity use. The welding process enables a continuous and uniform connection, integrating the second anti-slip strip 60 with the second clamping arm 40 as a unitary structure, which advantageously ensures efficient force transmission.

[0066] In some embodiments, reference is made to FIG. 7. The end of the first clamping arm 30 away from the first arm 10 is provided with a third mounting portion 32. The fire tongs 100 further include a first end plate 70 mounted on the third mounting portion 32. The first end plate 70 is provided with a plurality of third teeth 71 protruding toward the second clamping arm 40. The plurality of third teeth 71 further enhances the gripping capability of the fire tongs 100, and is particularly suitable for situations requiring hooking or prying from the distal end. For example, when it is desired to pick up a small piece of charcoal from a pile of charcoal, or when fine adjustments are required using the front end of the fire tongs 100. In such cases, the plurality of third teeth 71 located at the end portion can provide effective and reliable grasping force.

[0067] In some embodiments, referring to FIG. 7, the end of the second clamping arm 40 remote from the second arm 20 includes a fourth mounting portion 42. The fire tongs 100 further include a second end plate 80 mounted to the fourth mounting portion 42, the second end plate 80 is provided with a plurality of fourth teeth 81 protruding toward the first clamping arm 30. The plurality of fourth teeth 81 further enhance the gripping capability of the fire tongs 100 and are particularly suitable for situations requiring hooking or prying from the end, such as when picking up a small piece from a pile of charcoal or when performing fine adjustments using the front end of the fire tongs 100. The plurality of fourth teeth 81 at the end provide effective gripping force.

[0068] In some embodiments, referring to FIG. 7, the fire tongs 100 further include a first pivot arm 101 and a second pivot arm 102. One end of the first pivot arm 101 is connected to the first arm 10, and the end of the first pivot arm 101 remote from the first arm 10 is connected to the first clamping arm 30. One end of the second pivot arm 102 is connected to the second arm 20, and the end of the second pivot arm 102 remote from the second arm 20 is connected to the second clamping arm 40. The first pivot arm 101 and the second pivot arm 102 cross each other and are pivotally connected, such that moving the first arm 10 and the second arm 20 toward each other drives the first clamping arm 30 and the second clamping arm 40 to close, while moving the first arm 10 and the second arm 20 away from each other drives the first clamping arm 30 and the second clamping arm 40 to open.

[0069] In some embodiments, referring to FIG. 7, the first pivot arm 101 and the second pivot arm 102 are pivotally connected via a pin (not labeled) passing through the first pivot arm 101 and the second pivot arm 102, with a thrust bearing (not labeled) sleeved on the pin. The thrust bearing is embedded in holes in the first pivot arm 101 and the second pivot arm 102 through which the pin passes. This arrangement advantageously improves the smoothness and stability of rotation of the first pivot arm 101 and the second pivot arm 102.

[0070] In some embodiments, referring to FIG. 7, the first arm 10, the first clamping arm 30, the second arm 20, and the second clamping arm 40 are hollow components, while the first pivot arm 101 and the second pivot arm 102 are solid components. This design effectively reduces the overall weight of the fire tongs 100, thereby reducing user fatigue during prolonged operation. The first pivot arm 101 and the second pivot arm 102, serving as key force-transmitting components, may be manufactured from solid metal blocks or bars, which advantageously enhances their strength and rigidity to transmit and withstand operational forces, reducing the likelihood of bending deformation under heavy clamping.

[0071] In some embodiments, referring to FIG. 7, the first arm 10, the first clamping arm 30, the second arm 20, and the second clamping arm 40 are hollow components, while the first pivot arm 101 and the second pivot arm 102 are solid components. One end of the first pivot arm 101 is inserted into the first arm 10 and welded thereto, and the other end of the first pivot arm 101 is inserted into the first clamping arm 30 and welded thereto. One end of the second pivot arm 102 is inserted into the second arm 20 and welded thereto, and the other end of the second pivot arm 102 is inserted into the second clamping arm 40 and welded thereto.

[0072] In some embodiments, referring to FIG. 8, the first clamping arm 30 includes a first section 301 and a second section 302 connected to each other. The first section 301 is connected to the first pivot arm 101 and is recessed with a first arc-shaped portion 3011, and the second section 302 is inclined away from the second clamping arm 40. The second clamping arm 40 includes a third section 401 and a fourth section 402 that are connected. The third section 401 is connected to the second pivot arm 102 and is recessed with a second arc-shaped portion 4011. The first arc-shaped portion 3011 and the second arcshaped portion 4011 are configured to enclose a clamping space (not labeled). The fourth section 402 is inclined away from the first clamping arm 30.

[0073] In the above embodiments, when the fire tongs 100 are closed, the first arcshaped portion 3011 and the second arc-shaped portion 4011 together enclose an approximately circular clamping space suitable for gripping larger objects or one or more cylindrical objects, such as logs or bundles of firewood. The inclined second section 302 and fourth section 402 make the jaws more suitable for gripping smaller components.

[0074] In some embodiments, referring to FIG. 8, the fire tongs 100 further include a first fixing sleeve 103 and a second fixing sleeve 104. The first fixing sleeve 103 fixedly connects the first pivot arm 101 and the first clamping arm 30, and the second fixing sleeve 104 fixedly connects the second pivot arm 102 and the second clamping arm 40.

[0075] In some embodiments, referring to FIG. 8, the first fixing sleeve 103 is provided with a first groove 1031, a portion of the first pivot arm 101 is disposed in the first groove 1031, a portion of the first clamping arm 30 is disposed in the first groove 1031, and the first fixing sleeve 103 is fixedly connected to the first pivot arm 101 and the first clamping arm 30, respectively. The second fixing sleeve 104 is provided with a second groove 1041 disposed opposite the first groove 1031, a portion of the second pivot arm 102 is disposed in the second groove 1041, a portion of the second clamping arm 40 is disposed in the second groove 1041, and the second fixing sleeve 104 is fixedly connected to the second pivot arm 102 and the second clamping arm 40, respectively.

[0076] It will be appreciated that, when the first clamping arm 30 and the first pivot arm 101 are separately manufactured, and the second clamping arm 40 and the second pivot arm 102 are separately manufactured (for example, where the first clamping arm 30 and the second clamping arm 40 are hollow components, and the first pivot arm 101 and the second pivot arm 102 are solid components), the first fixing sleeve 103 and the second fixing sleeve 104 provide robust connection nodes for these separately manufactured components, advantageously enhancing fatigue resistance and impact resistance at the connection points.

[0077] In some embodiments, the first fixing sleeve 103 is welded to the first pivot arm 101 and the first clamping arm 30, and the second fixing sleeve 104 is welded to the second pivot arm 102 and the second clamping arm 40. The first arm 10 and the second arm 20 are hollow tubes, a portion of the first pivot arm 101 is inserted into the first arm 10 and welded thereto, and a portion of the second pivot arm 102 is inserted into the second arm 20 and welded thereto. This welded structural framework advantageously enhances the overall integrity and structural strength of the main body of the fire tongs 100, enabling the fire tongs 100 to withstand more demanding use.

[0078] In some embodiments, referring to FIG. 8, the fire tongs 100 further include a first heat insulation sleeve 105 and a second heat insulation sleeve 106, the first heat insulation sleeve 105 is sleeved on the end of the first arm 10 remote from the first clamping arm 30, and the second heat insulation sleeve 106 is sleeved on the end of the second arm 20 remote from the second clamping arm 40. Given that the fire tongs 100 are primarily used for handling high-temperature burning materials, the thermal insulation performance of the hand-held portion is particularly important. These heat insulation sleeves may be made of silicone, thermosetting plastic, or composite materials wrapped with insulating material, which have low thermal conductivity coefficients and advantageously block heat conduction from the metal arms, ensuring user hand comfort and safety.

[0079] In some embodiments, referring to FIG. 9, the fire tongs 100 further include a first heat insulation handle 107 and a second heat insulation handle 108. The first heat insulation handle 107 includes a first portion 1071, a second portion 1072, and a third portion 1073 connected in sequence. The first portion 1071 and the third portion 1073 are both connected to the first arm 10. The first portion 1071, the second portion 1072, and the third portion 1073, together with the first arm 10, enclose and define a first clearance space 107a. The second heat insulation handle 108 includes a fourth portion 1081, a fifth portion 1082, and a sixth portion 1083 connected in sequence. The fourth portion 1081 and the sixth portion 1083 are both connected to the second arm 20, and the fourth portion 1081, the fifth portion 1082, and the sixth portion 1083, together with the second arm 20, enclose and define a second clearance space 108a. The clearance spaces are configured to allow a user's palm to pass therethrough, thereby facilitating gripping of the first heat insulation handle 107 and the second heat insulation handle 108.

[0080] In some embodiments, the first heat insulation handle 107 and the second heat insulation handle 108 exhibit lower thermal conductivity than the first arm 10 and the second arm 20.

[0081] By way of example, the first arm 10 and the second arm 20 may be made of high-quality carbon structural steel or certain aluminum alloys. The first heat insulation handle 107 and the second heat insulation handle 108 may be made of austenitic stainless steel or titanium alloy, the thermal conductivity of austenitic stainless steel and titanium alloy is lower than that of ordinary carbon steel.

[0082] It should be appreciated by those of ordinary skill in the art that the above embodiments are provided merely for illustrating the present disclosure and are not intended to limit the present disclosure. Appropriate modifications and variations to the above embodiments, falling within the spirit and scope of the present disclosure, are intended to be encompassed within the disclosure of the present disclosure.

Claims

1. Fire tongs, comprising:a first arm; anda second arm rotationally connected to the first arm;a first clamping arm connected to the first arm, the first clamping arm having a first mounting portion; anda second clamping arm connected to the second arm; the second clamping arm being disposed opposite to the first mounting portion; anda first anti-slip strip mounted on the first mounting portion; the first anti-slip strip being provided with a plurality of first teeth protruding toward the second clamping arm;wherein the first arm and the second arm are configured to move relative to each other toward and away from one another, such that a movement of the first arm and the second arm toward each other drives the first clamping arm and the second clamping arm to clamp, and a movement away from each other drives the first clamping arm and the second clamping arm to separate.

2. The fire tongs according to claim 1, wherein the second clamping arm comprises a second mounting portion, the first mounting portion is disposed opposite to the second mounting portion; andthe fire tongs further comprise a second anti-slip strip mounted on the second mounting portion; the second anti-slip strip is provided with a plurality of second teeth protruding toward the first clamping arm.

3. The fire tongs according to claim 2, wherein along a thickness direction of the first antislip strip, the first anti-slip strip being provided with a plurality of first through holes penetrating through the first anti-slip strip, the plurality of first teeth are located in the plurality of first through holes;wherein each of the plurality of first teeth comprises a first pointed angle and two first connecting ends located at opposite ends of the first pointed angle, the first pointed angle is facing toward the second mounting portion, and the two first connecting ends are connected to the first anti-slip strip; andalong a thickness direction of the second anti-slip strip, the second anti-slip strip is provided with a plurality of second through holes penetrating through the second anti-slip strip, theplurality of second teeth is located in the second through holes;wherein each of the plurality of second teeth comprises a second pointed angle and two second connecting ends located at opposite ends of the second pointed angle, the second pointed angle is faced toward the first mounting portion, and the two second connecting ends are connected to the second anti-slip strip.

4. The fire tongs according to claim 3, wherein along a length direction of the first anti-slip strip, the first through holes are located between the two first connecting ends; andalong a length direction of the second anti-slip strip, the second through holes are located between the two second connecting ends.

5. The fire tongs according to claim 2, wherein the plurality of first teeth are arranged in multiple columns, each of the multiple columns of the plurality of first teeth comprises at least two first teeth of the plurality of first teeth arranged along a length direction of the first anti-slip strip, and the multiple columns of the plurality of first teeth are arranged along a width direction of the first anti-slip strip; andthe plurality of second teeth is arranged in multiple columns, each column of multiple columns of the plurality of second teeth comprises at least two second teeth of the plurality of second teeth arranged along a length direction of the second anti-slip strip, and the multiple columns of the plurality of second teeth are arranged along a width direction of the second antislip strip.

6. The fire tongs according to claim 5, wherein the first anti-slip strip is provided with at least three columns of the plurality of first teeth, and the second anti-slip strip is provided with at least three columns of the plurality of second teeth.

7. The fire tongs according to claim 2, wherein the first anti-slip strip is detachably connected to the first clamping arm; andthe second anti-slip strip is detachably connected to the second clamping arm.

8. The fire tongs according to claim 2, wherein the first anti-slip strip is welded to the first clamping arm; andthe second anti-slip strip is welded to the second clamping arm.

9. The fire tongs according to claim 2, wherein an end portion of the first clamping arm away from the first arm is provided with a third mounting portion; and the fire tongs further comprise a first end plate mounted on the third mounting portion; wherein the first end plate is provided with a plurality of third teeth protruding toward the second clamping arm; andan end portion of the second clamping arm away from the second arm is provided with a fourth mounting portion; and the fire tongs further comprise a second end plate mounted on the fourth mounting portion; wherein the second end plate is provided with a plurality of fourth teeth protruding toward the first clamping arm.

10. The fire tongs according to claim 1, wherein the fire tongs further comprise:a first pivot arm, one end of the first pivot arm is connected to the first arm, and the other end of the first pivot arm away from the first arm is connected to the first clamping arm;a second pivot arm, one end of the second pivot arm is connected to the second arm, and an end of the second pivot arm away from the second arm is connected to the second clamping arm;wherein the first pivot arm and the second pivot arm are arranged in a crossed and pivotally connected manner; when the first arm and the second arm move toward each other, the first clamping arm and the second clamping arm are driven to clamp, and when the first arm and the second arm move away from each other, the first clamping arm and the second clamping arm are driven to separate.

11. The fire tongs according to claim 10, wherein the first arm, the first clamping arm, the second arm, and the second clamping arm are hollow, and the first pivot arm and the second pivot arm are solid.

12. The fire tongs according to claim 10, wherein the first clamping arm comprises a first section and a second section that are connected, the first section is connected to the first pivot arm, the first section is recessed with a first arc-shaped portion, and the second section is inclined in a direction away from the second clamping arm;the second clamping arm comprises a third section and a fourth section that are connected, the third section is connected to the second pivot arm, the third section is recessed with a second arc-shaped portion; and the first arc-shaped portion and the second arc-shaped portion are configured to enclose to form a clamping space, and the fourth section is inclined in a direction away from the first clamping arm.

13. The fire tongs according to claim 10, wherein the fire tongs further comprise:a first fixing sleeve is defined with a first groove, a portion of the first pivot arm is disposed in the first groove, a portion of the first clamping arm is disposed in the first groove, and the first fixing sleeve is fixedly connected to the first pivot arm and the first clamping arm respectively; anda second fixing sleeve provided with a second groove, and the second groove is disposed opposite to the first groove, a portion of the second pivot arm is disposed in the second groove, a portion of the second clamping arm is disposed in the second groove, and the second fixing sleeve is fixedly connected to the second pivot arm and the second clamping arm respectively.

14. The fire tongs according to claim 13, wherein the first fixing sleeve is welded to the first pivot arm and the first clamping arm, and the second fixing sleeve is welded to the second pivot arm and the second clamping arm;the first arm and the second arm are hollow, a portion of the first pivot arm is inserted into the first arm and welded to the first arm, and a portion of the second pivot arm is inserted into the second arm and welded to the second arm.

15. The fire tongs according to claim 10, wherein one end of the first pivot arm is inserted into the first arm and welded to the first arm, and the other end of the first pivot arm is inserted into the first clamping arm and welded to the first clamping arm; andone end of the second pivot arm is inserted into the second arm and welded to the second arm, and the other end of the second pivot arm is inserted into the second clamping arm and welded to the second clamping arm.

16. The fire tongs according to claim 1, wherein the fire tongs further comprise:a first heat insulation sleeve sleeved on one end of the first arm away from the first clamping arm; anda second heat insulation sleeve sleeved on one end of the second arm away from the second clamping arm.

17. The fire tongs according to claim 1, wherein the fire tongs further comprise:a first heat insulation handle having a first portion, a second portion, and a third portion connected in sequence, both the first portion and the third portion are connected to the first arm; and the first portion, the second portion, and the third portion are enclosed with the first arm toform a first clearance space; anda second heat insulation handle having a fourth portion, a fifth portion, and a sixth portion connected in sequence, both the fourth portion and the sixth portion are connected to the second arm; and the fourth portion, the fifth portion, and the sixth portion are enclosed with the second arm to form a second clearance space.T +44(0)30 0300 2000A

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