Quick-clamping and self-locking detachable handle

Abstract

A detachable handle capable of achieving quick clamping and self-locking comprises a handle body and a clamping piece, the handle body comprises a handle base and a handle upper cover, a connecting base is arranged on the front portion of the upper surface of the handle base in a concave mode, a connector corresponding to the connecting base is arranged at the front end of the handle upper cover, and the connector and the connecting base are rotationally connected through a front transmission connecting piece and a rear transmission connecting piece. The clamping piece is arranged at the front part of the upper surface of the handle base, the rear end of the clamping piece is fixed with the front transmission connecting piece, the handle upper cover is provided with a safety lock locked with the handle base, and when the handle upper cover covers the handle base, the clamping piece and the front end of the handle base are in a clamping state, the front transmission connecting piece and the rear transmission connecting piece are in a self-locking position, and the safety lock is locked with the handle base. When the safety lock is opened and the rear end of the handle upper cover is lifted up, self-locking of the front transmission connecting piece and the rear transmission connecting piece is relieved, and the clamping piece is lifted up to loosen clamping. The pot cover is simple and reasonable in structure, few in parts, convenient to operate and low in cost, and similar products are higher in adaptability to pot edges.

Description

Technical Field

[0001] The utility model relates to a pot handle, in particular to a detachable handle which can be quickly clamped and self-locked. Background Art

[0002] A pot is a cooking utensil used for cooking, boiling, frying, deep-frying, stir-frying, and other cooking tasks. A pot typically consists of a pot body, a lid, and a handle. Traditional handles are riveted to the outside of the pot body using rivets (or screws). This leaves rivet heads on the side of the pot body, which can accumulate grease during cooking, causing rust over time and making cleaning difficult. Furthermore, using rivets (or screws) requires punching holes in both the pot body and the handle, making the process inconvenient and prone to slippage and loosening after assembly. Some handles are also directly fixed to the pot body using spot welding. While the connection is secure, the handle cannot be removed, making the pot body bulky and difficult to pack and transport. To address this issue, detachable handles have emerged, allowing for easy detachment. However, these handles typically utilize levers, rack locks, or knobs for gripping. A common problem with these products is the excessive number of parts and complex transmission mechanisms. A single component failure can cause the entire product to fail.

[0003] Upon investigation, the Chinese patent number CN201120126558.6, "Detachable Pot Handle," was found. It comprises a mating upper cover and base, characterized by: a rotatable knob on the upper cover, housing a roller; a stopper within the base, supported by an elastic element between the stopper and the inner wall of the base; and left and right buttons on either side of the base for controlling the stopper's upward and downward movement. A metal clamping plate is positioned between the upper cover and the base, with a spring configured to extend outward. The head of the metal clamping plate is formed as a downwardly bent clip, which cooperates with the head of the base to form a clamping portion for the pot body. A longitudinally shaped slot is defined in the middle of the stainless steel clamping plate, which engages with the knob's roller. A slider is located at the rear end of the slot, engaging with the roller and the stopper. This structure provides a relatively stable connection to the pot body and facilitates assembly and disassembly, but is relatively complex and cumbersome to assemble. Utility Model Content

[0004] The technical problem to be solved by the utility model is to provide a detachable handle which has a simple and reasonable structure, few parts and is easy to operate, and can be quickly clamped and self-locked.

[0005] The technical solution to the technical problem solved by the utility model is as follows: a detachable handle capable of quick clamping and self-locking, comprising a handle body and a clamping piece, the handle body comprising a handle base and a handle cover, characterized in that a connecting seat is recessed on the front portion of the upper surface of the handle base, a connecting head corresponding to the connecting seat is provided at the front end of the handle cover, the connecting head and the connecting seat are axially connected via a front transmission connecting member and a rear transmission connecting member, respectively, the clamping piece is provided on the front portion of the upper surface of the handle base, the rear end of the clamping piece is fixed to the front transmission connecting member, when the handle cover is closed with the handle base, the clamping piece and the front end of the handle base are in a clamping state, the front transmission connecting member and the rear transmission connecting member are substantially in a dead point self-locking position, that is, the upper shaft hole of the front transmission connecting member and the upper shaft hole and the lower shaft hole of the rear transmission connecting member are approximately straight, and the line connecting the three shaft holes is required to form an angle of 170 to 180 degrees, when the rear end of the handle cover is lifted, the dead point self-locking of the front transmission connecting member and the rear transmission connecting member is released, and the clamping piece is lifted to loosen the clamping.

[0006] Furthermore, the connecting seat adopts a mounting groove, and a U-shaped concave surface is formed on the left and right sides of the mounting groove. The shape and width of the front end connecting head of the handle cover correspond to the mounting groove. One end of the front transmission connecting rod is rotatably connected to the upper front end of the connecting head of the handle cover through an axle pin, and the other end is arranged at the concave front end of the mounting groove and is rotatably connected through an axle pin. One end of the rear transmission connecting member is rotatably connected to the lower part of the connecting head through an axle pin, and the other end is arranged at the rear end of the concave surface of the mounting groove and is rotatably connected through an axle pin. When the handle cover is closed with the handle base, the front transmission connecting member is in a vertical state and the rear transmission connecting member is in an inclined state. The upper shaft hole of the front transmission connecting member and the upper shaft hole and lower shaft hole of the rear transmission connecting member form an angle of 170 to 180 degrees, and the closing angle formed by the front transmission connecting member and the rear transmission connecting member is 30 to 70 degrees.

[0007] Preferably, the upper shaft hole of the front transmission connecting member and the upper shaft hole and lower shaft hole of the rear transmission connecting member form an angle of 170°, and the inward offset angle of the upper shaft hole of the rear transmission connecting member is 2.5°.

[0008] Furthermore, the handle cover is provided with a safety lock that is locked with the handle base, and a through cavity for the safety lock to be placed is provided on the upper surface of the handle cover, corresponding to the upper end of the connecting head, and the safety lock is rotatably installed in the cavity through an axle pin. The upper surface of the handle base and the rear side of the connecting seat are slidable up and down and are provided with a sliding buckle that cooperates with the safety lock to lock. When the handle cover is closed with the handle base, the safety lock cooperates with the sliding buckle to lock, and the upper end of the safety lock is protruded outside the handle cover to form a hand-pushing part.

[0009] Furthermore, the upper surface of the handle base and the rear side of the connecting seat are recessed with mounting grooves for the sliding buckle to be placed in and slide up and down. The sliding buckle is made of wear-resistant material, and the sliding buckle is arranged in the mounting groove so as to be movable up and down by screws.

[0010] Furthermore, guide ribs are convexly provided on the left and right sides of the sliding buckle, and corresponding guide grooves are concavely provided on the left and right sides of the inner wall of the mounting groove. A countersunk hole for the screw to pass through is longitudinally opened in the middle of the sliding buckle, and a screw hole is provided at the bottom of the mounting groove. The screw is screwed into the screw hole to be fixed. There is a gap between the countersunk hole and the screw for the sliding buckle to move up and down. A spring is supported between the bottom of the mounting groove and the sliding buckle, so that the sliding buckle has a tendency to always move upward.

[0011] Furthermore, the front end of the handle base is formed into an inclined surface inclined outward and downward, the front end of the clamping piece is covered with a protective rubber sleeve, the clamping surface is a corresponding inclined surface, and the rear end of the clamping piece is formed into a connecting piece with an inverted U-shaped upper end. The upper end of the front transmission connecting piece is provided in an inverted U-shaped groove and fixed to the connecting piece by screws.

[0012] Furthermore, the front end connector of the handle upper cover adopts a U-shaped connecting seat structure, and the front transmission connector and the rear transmission connector adopt a connecting block structure.

[0013] Furthermore, the front transmission connecting member and the rear transmission connecting member adopt the same connection block structure.

[0014] Finally, after the handle upper cover and the handle base are covered, a hanging hole is formed at the rear end for easy hanging.

[0015] Compared with existing technologies, the advantages of this utility model are: the traditional mechanical self-locking method is replaced with a dead-point self-locking method using a planar linkage mechanism. Front and rear transmission connectors are provided between the handle base and the handle cover, and the dead-point locking and unlocking of the clamping are achieved by opening and closing the handle cover. A safety lock is provided to prevent the handle from loosening due to accidental collisions during daily use, providing a double insurance function. This utility model has a simple and reasonable structure, few parts, and is easy to operate. Without compromising safety, it significantly reduces product manufacturing costs. Furthermore, compared to similar products on the market, it has a higher degree of adaptability to pot rims, and can not only clamp pots, but also plates, pans with wide rims, and more. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 This is a schematic structural diagram of an embodiment of the utility model in a closed state;

[0017] Figure 2 for Figure 1 A longitudinal cross-sectional view of

[0018] Figure 3 for Figure 1 A top view of

[0019] Figure 4 This is a schematic diagram of the structure of an embodiment of the utility model in an open state;

[0020] Figure 5 for Figure 4 sectional view of

[0021] Figure 6 This is a three-dimensional exploded view of an embodiment of the present utility model;

[0022] Figure 7 (1) to (4) are the operating principle diagrams of resetting the safety lock after improper operation. DETAILED DESCRIPTION

[0023] The present invention will be described in further detail below with reference to the accompanying drawings and embodiments.

[0024] like Figures 1 to 7 (4) shows a detachable handle that can be quickly clamped and self-locked, including a handle body 100 and a clamping piece 3. The handle body 100 includes a handle base 1 and a handle cover 2, wherein a connecting seat 11 is recessed on the front of the upper surface of the handle base 1, and a connecting head 21 corresponding to the connecting seat is formed in the middle of the front end of the handle cover 2. The left and right sides of the connecting head 21 are rotatably connected to the left and right sides of the connecting seat 11 through two transmission connecting members 4. The two transmission connecting members 4 are respectively a front transmission connecting member 41 and a rear transmission connecting member 42. Both ends of the front transmission connecting member 41 and the rear transmission connecting member 42 are provided with axial holes, so that the connecting head 21 and the connecting seat 11 are respectively connected through the front transmission connecting member 41 and the rear transmission connecting member 42. Part 42 realizes axial connection, the clamping piece 3 is arranged on the front part of the upper surface of the handle base 1, and the rear end of the clamping piece 3 is fixedly connected to the front transmission connecting piece 41. In this way, when the handle cover 2 is covered with the handle base 1, the clamping piece 3 and the front end of the handle base 1 are in a clamping state, and the front transmission connecting piece 41 and the rear transmission connecting piece 42 are basically in the dead point self-locking position, that is, the upper shaft hole A of the front transmission connecting piece 41 and the upper shaft hole B and the lower shaft hole C of the rear transmission connecting piece 42 are close to a straight line state. It is usually required that the line connecting the three shaft holes forms an angle of 170 to 180 degrees. When the rear end of the handle cover 2 is lifted, the dead point self-locking of the front transmission connecting piece 41 and the rear transmission connecting piece 42 is released, and the clamping piece 3 is lifted to loosen the clamping.

[0025] As a further improvement, a safety lock 5 is provided on the handle cover 2, which is locked to the handle base 1. When the handle cover 2 is covered with the handle base 1, the clamping piece 3 and the front end of the handle base 1 are in a clamping state, the front transmission connector 41 and the rear transmission connector 42 are in a self-locking position, and the safety lock 5 is locked to the handle base 2. When the safety lock 5 is opened and the rear end of the handle cover 2 is lifted, the self-locking of the front transmission connector 41 and the rear transmission connector 42 is released, and the clamping piece 3 is lifted to loosen the clamping.

[0026] The specific structure is as follows: the front end of the handle base 1 is formed into an inclined surface inclined outward and downward, the connecting seat 11 of the handle base 1 can be a flat-bottomed or curved mounting groove 11a, and the left and right sides of the mounting groove 11a are formed with U-shaped concave side walls. The shape and width of the front end connecting head 21 of the handle cover 2 correspond to the mounting groove 11a. Usually, in order to facilitate assembly, the front end connecting head 21 is manufactured into a U-connecting seat structure. One end of the front transmission connecting member 41 of the two transmission connecting members 4 is connected to the front end upper part of the connecting head 21 of the handle cover 2 through an axle pin b, and the other end is arranged at the front end of the concave side wall of the mounting groove 11a and is also rotatably connected through the axle pin b. One end of the rear transmission connecting member 42 is rotatably connected to the lower part of the connecting head 21 through the axle pin b, and the other end is arranged on the concave side wall 1 of the mounting groove 11a. 2 rear ends are rotatably connected by an axis pin b, the front end of the clamping piece 3 is covered with a protective rubber sleeve 30, and the clamping surface is a corresponding inclined surface. When the handle cover 2 is covered with the handle base 1, the front transmission connecting member 41 is in a substantially vertical state, and the rear transmission connecting member 42 is in an inclined state. The upper axis hole A of the front transmission connecting member 41 and the upper axis hole B and the lower axis hole C of the rear transmission connecting member 42 form an angle of 170 to 180 degrees, and the closed angle β formed by the front transmission connecting member 41 and the rear transmission connecting member 42 is 30 to 70 degrees. In this embodiment, the angle α of the upper axis hole B of the rear transmission connecting member 42 is inwardly offset by 2.5 degrees, the upper axis hole A of the front transmission connecting member 41 and the upper axis hole B and the lower axis hole C of the rear transmission connecting member 42 form an angle of 175 degrees, and the closed angle β formed by the front transmission connecting member 41 and the rear transmission connecting member 42 is 52.5 degrees. This aligns the upper shaft hole A of the front transmission connector 41 and the upper shaft hole B and lower shaft hole of the rear transmission connector 42, forming a dead point for the planar transmission linkage. The front and rear transmission connectors 41 and 42 are in a self-locking state, making it difficult to lift the clamping piece 3, thereby achieving self-locking for gripping the cookware. When the rear end of the handle cover 2 is lifted, the dead point condition of the planar transmission linkage is broken, allowing the clamping piece 3 to lift and release its grip, allowing the handle to be removed from the cookware.

[0027] To prevent the handle from coming loose due to accidental collisions during daily use, a safety lock 5 is added. A through-hole 22 for the safety lock 5 is provided on the upper surface of the handle cover 2, corresponding to the rear end of the connector 21. The safety lock 5 is rotatably mounted in the cavity 22 via a pin a. A sliding buckle 6 is provided on the upper surface of the handle base 1 and the rear side of the connector 11, allowing for up and down sliding movement. When the handle cover 2 and the handle base 1 are closed, the safety lock 5 and the sliding buckle 6 engage and lock. The upper end of the safety lock 5 protrudes from the outside of the handle cover 1 to form a push portion. If necessary, a torsion spring can be added between the safety lock 5 and the pin a to ensure that the safety lock 5 always rotates counterclockwise to lock with the sliding buckle 6. A mounting groove 12 for the sliding buckle 6 to be inserted and slide up and down is provided on the upper surface of the handle base 2 and the rear side of the connector 11. The sliding buckle 6 is made of wear-resistant material and is fixed in the mounting groove 12 by a screw 7 for upward and downward movement. Guide ribs 61 are convexly provided on the left and right sides of the sliding buckle 6, and corresponding guide grooves 13 are concavely provided on the left and right sides of the inner wall of the mounting groove 12. A countersunk hole 62 for the screw 7 to pass through is longitudinally opened in the middle of the sliding buckle 6, and a screw hole is provided at the bottom of the mounting groove 12. The screw 7 passes through the countersunk hole 62 and is screwed into the screw hole for fixation. A gap is provided between the countersunk hole 62 and the screw 7 for the sliding buckle 6 to move up and down. A spring is supported between the bottom of the mounting groove 12 and the sliding buckle 6, so that the sliding buckle 6 has a tendency to always move upward.

[0028] During use, due to the asynchronous reset, the safety lock will be in the wrong position after reset, such as Figure 7 (1) At this time, pull the safety lock 5 down to make the safety lock 5 rotate clockwise. Figure 7 (2) The sliding buckle 76 is driven to move downward, the safety lock 5 is separated from the sliding buckle 6, and the sliding buckle 6 is moved upward to reset. Figure 7 (3) The safety lock 5 can be reset counterclockwise and locked again with the sliding buckle 6, as shown in FIG. Figure 7 (4).

[0029] In addition, a hanging hole 10 is formed at the rear end of the handle cover 2 after the handle base 1 is covered. To facilitate assembly and manufacturing, in this embodiment, the front transmission connector 41 and the rear transmission connector 42 are formed in the form of connecting blocks, and the same connecting blocks can be used to facilitate manufacturing.

[0030] The operation process is: when clamping is required, pinch the handle cover 2 and press it down. Figure 1 、 2 As shown, the front transmission connector 41 and the rear transmission connector 42 form a dead point and are in a self-locking state. No matter how much pressure the front end is subjected to, the rear end does not bear the torque in the opening direction. During use, even if you let go, the handle will not fall off. At the same time, the safety lock 5 is locked with the sliding buckle 6 to form a double insurance.

[0031] When the handle needs to be removed, first push the safety lock 5 backwards, the safety lock 5 is disengaged from the sliding buckle 6, release the handle, and lift the handle cover 2 upwards. Figure 4 、 5 As shown, the dead point conditions of the front transmission connecting member 41 and the rear transmission connecting member 42 are destroyed, and the self-locking is released, so that the clamping steel plate 3 can be loosened and removed easily and conveniently.

[0032] This embodiment has fewer parts and is easy to operate. The dead point self-locking method of the front and rear transmission connecting parts is adopted to ensure a stable connection of the handle, and the adaptability to the edge of the pot is higher. It can not only clamp pots, but also plates, pan-fried wide-edged pots, etc.

[0033] The above is only a preferred embodiment of the present invention. It should be pointed out that for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the technical principles of the present invention. These improvements and modifications should also be regarded as within the scope of protection of the present invention.

Claims

1. A detachable handle capable of quick clamping and self-locking, comprising a handle body and a clamping piece, wherein the handle body comprises a handle base and a handle cover, and is characterized in that: The front part of the upper surface of the handle base is recessed with a connecting seat, and the front end of the handle upper cover is provided with a connecting head corresponding to the connecting seat. The connecting head and the connecting seat are axially connected through the front transmission connecting piece and the rear transmission connecting piece respectively. The clamping piece is provided at the front part of the upper surface of the handle base, and the rear end of the clamping piece is fixed to the front transmission connecting piece. When the handle upper cover and the handle base are covered, the clamping piece and the front end of the handle base are in a clamping state, and the front transmission connecting piece and the rear transmission connecting piece are basically in a dead point self-locking position, that is, the upper shaft hole of the front transmission connecting piece and the upper shaft hole and the lower shaft hole of the rear transmission connecting piece are in a nearly straight line state, and the line connecting the three shaft holes is required to form an angle of 170 to 180 degrees. When the rear end of the handle upper cover is lifted, the dead point self-locking of the front transmission connecting piece and the rear transmission connecting piece is released, and the clamping piece is lifted to loosen the clamping.

2. The detachable handle according to claim 1, wherein: The connecting seat adopts a mounting groove, and a U-shaped concave surface is formed on the left and right sides of the mounting groove. The shape and width of the front end connecting head of the handle cover correspond to the mounting groove. One end of the front transmission connecting rod is rotatably connected to the upper front end of the connecting head of the handle cover by an axle pin, and the other end is arranged at the concave front end of the mounting groove and is rotatably connected by an axle pin. One end of the rear transmission connecting member is rotatably connected to the lower part of the connecting head by an axle pin, and the other end is arranged at the rear end of the concave surface of the mounting groove and is rotatably connected by an axle pin. When the handle cover is closed with the handle base, the front transmission connecting member is in a vertical state and the rear transmission connecting member is in an inclined state. The upper shaft hole of the front transmission connecting member and the upper shaft hole and lower shaft hole of the rear transmission connecting member form an angle of 170 to 180 degrees, and the closing angle formed by the front transmission connecting member and the rear transmission connecting member is 30 to 70 degrees.

3. The detachable handle according to claim 2, wherein: The upper shaft hole of the front transmission connecting member and the upper shaft hole and the lower shaft hole of the rear transmission connecting member form an angle of 170°, and the inward offset angle of the upper shaft hole of the rear transmission connecting member is 2.5°.

4. The detachable handle according to claim 2, wherein: The handle cover is provided with a safety lock that is locked with the handle base. A through cavity for inserting the safety lock is provided on the upper surface of the handle cover, corresponding to the upper end of the rear end of the connecting head. The safety lock is rotatably installed in the cavity through an axle pin. A sliding buckle that cooperates with the safety lock and is locked is provided on the upper surface of the handle base and the rear side of the connecting seat so as to slide up and down. When the handle cover is closed with the handle base, the safety lock cooperates with the sliding buckle to lock, and the upper end of the safety lock is protruded outside the handle cover to form a hand-pushing part.

5. The detachable handle according to claim 4, characterized in that: The upper surface of the handle base and the rear side of the connecting seat are recessed with mounting grooves for the sliding buckle to be placed in and slide up and down. The sliding buckle is made of wear-resistant material and is arranged in the mounting groove by a screw that can limit the movement up and down.

6. The detachable handle according to claim 5, characterized in that: The sliding buckle is provided with guide ribs on the left and right sides, and corresponding guide grooves are recessed on the left and right sides of the inner wall of the installation groove. A countersunk hole for the screw to pass through is longitudinally opened in the middle of the sliding buckle, and a screw hole is provided at the bottom of the installation groove. The screw is screwed into the screw hole to be fixed. A gap is provided between the countersunk hole and the screw for the sliding buckle to move up and down. A spring is supported between the bottom of the installation groove and the sliding buckle, so that the sliding buckle has a tendency to always move upward.

7. The detachable handle according to claim 1, wherein: The front end of the handle base is formed into an inclined surface inclined outward and downward, the front end of the clamping piece is covered with a protective rubber sleeve, the clamping surface is a corresponding inclined surface, and the rear end of the clamping piece is formed into a connecting piece with an inverted U-shaped upper end. The upper end of the front transmission connecting piece is set in an inverted U-shaped groove and fixed to the connecting piece by screws.

8. The detachable handle according to claim 1, wherein: The front end connector of the handle upper cover adopts a U-shaped connecting seat structure, and the front transmission connector and the rear transmission connector adopt a connecting block structure.

9. The detachable handle according to claim 8, characterized in that: The front transmission connecting member and the rear transmission connecting member adopt the same connection block structure.

10. The detachable handle according to any one of claims 1 to 9, characterized in that: After the handle upper cover is covered with the handle base, a hanging hole is formed at the rear end for easy hanging.

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