Container opener

Abstract

Container opener, comprising: a housing defining a cavity extending along a longitudinal axis from a front end for engagement with a container lid to a rear end opposite the front end; an adjustment mechanism disposed within the cavity, the adjustment mechanism comprising: a guide element arranged within the cavity and extending along the longitudinal axis; a movable block connected to the guide member and configured to move relative to the housing; and a strip partially disposed outside a front end of the housing, two ends of the strip extending into the cavity and connected to the movable block; and a handle operatively connected to the adjustment mechanism for driving movement of the movable block.

Description

TECHNICAL FIELD

[0001] The present disclosure relates generally to the field of opening tools for sealed containers, in particular to a container opener. STATE OF THE ART

[0002] Bottles, jars, or other containers with lids must be opened to access and use the contents. However, the smooth and hard outer surfaces of some lids make them difficult to grasp and open by hand.

[0003] To solve this problem, various container openers such as wrenches, pliers, vises, and other lid-opening tools are commonly used. However, existing container openers still have some shortcomings that require further optimization.

[0004] Wrenches, for example, are characterized by their simple structure and low cost, but are limited to a single bottle size. Openers with gear teeth can accommodate a range of cap sizes. However, with these openers, the user must manually increase the friction between the gear teeth and the cap for an extended period of time before the cap can be opened. This can be challenging for people with limited hand strength, such as the elderly or children. CONTENT OF THE PRESENT INVENTION

[0005] The subject matter disclosed herein comprises a container opener for opening a sealed container.

[0006] The container opener includes a housing having a cavity extending along a longitudinal axis from a front end for engagement with a container lid to a rear end opposite the front end. An adjustment mechanism is disposed within the cavity and includes: a guide member disposed within the cavity and extending along the longitudinal axis; a movable block connected to the guide member and configured to move relative to the housing; and a strip partially disposed outside a front end of the housing, two ends of the strip extending into the cavity and connected to the movable block. A handle is operatively connected to the adjustment mechanism to drive movement of the movable block.

[0007] The container opener further includes various features for improved functionality and ease of use. According to one embodiment or some embodiments of the present disclosure, the guide member comprises a threaded rod rotatably connected to the housing and extending along the longitudinal axis, and a rail disposed within the cavity and running parallel to the threaded rod. The movable block forms a threaded bore engaging the threaded rod and includes a sliding surface mateable with the rail for relative movement. The handle is operatively connected to the threaded rod to drive rotation thereof.

[0008] According to one or some embodiments of the present disclosure, the front end of the housing forms two through-holes; and the two ends of the strip extend through the two through-holes into the cavity and are respectively connected to opposite sides of the movable block. The housing includes a curved surface located between the two through-holes, and the curved surface cooperates with a portion of the strip located outside the housing to form a receiving space configured to receive the container lid. At least one of the curved surface and the portion of the strip located outside the housing includes a friction portion disposed on a side facing the receiving space. The friction portion is elastic and / or includes a plurality of protrusions.

[0009] According to one or some embodiments of the present disclosure, the handle is fitted onto a portion of the housing and rotatably connected to the housing. The handle includes a tubular structure having an inner wall with an annular protrusion; and the housing includes an outer wall forming a corresponding annular groove. The annular groove is configured to slidably engage the annular protrusion. The threaded rod is provided with an external rack at a rear end; and the handle includes an internal rack that cooperatively engages the external rack. The internal gearing is disposed at a rear end of the handle.

[0010] According to one or some embodiments of the present disclosure, the housing includes a first segment having a rear end defining an opening that coincides with the rear end of the threaded rod. The handle is rotatably installed on the first segment and drivingly connected to the threaded rod via the opening. The housing further includes a second segment extending from a front end of the first segment. The second segment includes a rear end having a larger cross-sectional dimension than the cross-sectional dimension of the first segment and a front end defining two through-holes for the strip. The first segment tapers in cross-sectional dimension from the front end to the rear end.

[0011] A front end of the threaded rod is rotatably connected to the front end of the second segment. A rear end of the threaded rod is rotatably connected to the rear end of the first segment.

[0012] According to one embodiment or some embodiments of the present disclosure, the container opener further comprises a locking assembly, the locking assembly being slidably installed on the housing and operatively movable between a locking position in which the locking assembly is engaged with the handle to prevent rotation thereof and an unlocking position in which the locking assembly is disengaged from the handle to permit rotation thereof.

[0013] According to one embodiment or some embodiments of the present disclosure, the locking assembly includes an outer gear ring and an outer ring. The outer gear ring is slidably installed on the housing along the longitudinal axis and configured to move along the longitudinal axis, and the handle includes an inner wall with internal gear teeth, the internal gear teeth configured to engage the outer gear ring. The outer ring surrounds the outer gear ring and is connected to an end of the outer gear ring facing away from the handle, wherein a gap between an inner wall of the outer ring and an outer wall of the outer gear ring has a thickness no less than a wall thickness of the handle.The outer gear ring forms a sliding groove extending along the longitudinal axis on an inner wall; and the housing includes a web projecting from an outer wall and slidably connected to the sliding groove.

[0014] The outer gear ring includes first gear teeth spaced apart from each other along the outer wall in a circumferential direction. At least one of the first gear teeth or the internal gear teeth is distributed over a full 360-degree circumference. The locking assembly further includes a washer installed on the housing and interposed between the outer gear ring and the housing. The washer includes an outer wall in sliding contact with the inner wall of the outer gear ring.

[0015] According to one embodiment or some embodiments of the present disclosure, the container opener includes a housing having a cavity extending along a longitudinal axis from a front end for engagement with a container lid to a rear end opposite the front end. An adjustment mechanism is disposed within the cavity and includes: a guide member disposed within the cavity and extending along the longitudinal axis; a movable block connected to the guide member and configured to move relative to the housing; and a strip partially disposed outside a front end of the housing, two ends of the strip extending into the cavity and connected to the movable block. A handle is operatively connected to the adjustment mechanism to drive movement of the movable block.A locking assembly is slidably installed on the housing and operatively movable between a locking position in which the locking assembly is engaged with the handle to prevent its movement and an unlocking position in which the locking assembly is disengaged from the handle to permit its movement.

[0016] Numerous advantages and benefits of the present application will become apparent to those skilled in the art upon reading and understanding the following detailed description. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] It is expressly understood that the drawings are for purposes of illustration and description only and are not intended to define the limitations of the present application. Fig. 1 shows a perspective view of a container opener in one embodiment; Fig. Figure 2 shows a partially exploded perspective view of an adjustment mechanism in a cavity; Fig. 3 shows a housing with a first segment and a second segment; Fig. 4 shows the installation positions of a rail and a friction section; Fig. 5 shows the position of the washers on the housing; Fig. 6 shows a perspective view of a handle; Fig. Figure 7 is a partially exploded perspective view of a handle showing the fastener therein; Fig. 8 shows a perspective view of a locking assembly; Fig. Figure 9 shows an exploded perspective view of a locking assembly. DETAILED DESCRIPTION

[0018] In the following, the technical disclosures in the embodiments of the present application will be described clearly and completely with reference to the attached drawings. Starting from the embodiments in the present application, all other embodiments that one skilled in the art can derive without creative effort are within the scope of the present application.

[0019] It should be understood that while the terms "first," "second," and the like may be used herein to describe various elements, these elements should not be limited by these terms. These terms are used merely to distinguish one element from another.

[0020] It should also be noted that, in some embodiments, the terms "front," "back," "left," "right," "top," and "bottom" used in the following description refer to directions. The terms "inside" and "outside" refer to directions toward or away from the geometric center of a particular component. In addition to the orientations described in the drawings, these terms should also encompass other orientations of the device.

[0021] The present disclosure relates to a container opener configured for opening lids and other closures. The container opener precisely adjusts the length of the strip to accommodate bottle caps of different sizes. Once the adjustment is complete, the length of the strip can be locked to prevent the container opener from loosening during lid opening. Furthermore, the container opener provides reliable friction with the container lid, preventing relative rotation when firmly engaged. Furthermore, the container opener is designed with ergonomic features to increase user-friendliness.

[0022] Although the term “container” is used frequently in this disclosure, it is intended to mean any type of container and may include, without limitation, bottles, jars, canisters, medicine bottles, jugs, cans, barrels, and any other containers.

[0023] As in Fig. 1 to 4, the container opener comprises a housing 1, an adjustment mechanism 3 and a handle 2. The housing 1 forms a cavity 13 extending along a longitudinal axis from a front end for engagement with a container lid to a rear end opposite the front end, and the cavity 13 is configured to receive the adjustment mechanism 3.

[0024] For ease of description in the embodiments of the present disclosure, the end near the container is defined as the front end and the end remote from the container is defined as the rear end.

[0025] The adjustment mechanism 3 comprises a guide element, a movable block 32, and a strip 33. The guide element is arranged within the cavity 13 and extends along the longitudinal axis. The movable block 32 is connected to the guide element and configured to move relative to the housing. In one embodiment, the guide element comprises a threaded rod 31 and a rail 34. The threaded rod 31 is arranged within the housing 1 and rotatably connected to the housing 1. The threaded rod 31 extends along the longitudinal axis. An opening is provided on the housing 1 that coincides with the rear end of the threaded rod 31. The rail 34 is arranged within the housing 1 and extends parallel to the threaded rod 31.The movable block 32 includes a threaded bore engaging the threaded rod 31 and a sliding surface operatively connected to the rail 34 to prevent rotation of the movable block 32. The guide member and the movable block 32 cooperatively form a mechanism similar to a lead screw mechanism, and the mechanism is configured to convert rotary motion into linear motion. Rotation of the threaded rod 31 causes the movable block 32 to move along the threaded rod 31 and the rail 34.

[0026] The strip 33 has a central portion located outside a front end of the housing 1, with both ends extending into the housing 1 and connected to the movable block 32. As the movable block 32 moves along the threaded rod 31, the strip 33 moves with the movable block 32, and the length of the strip 33 extending from the housing 1 changes accordingly to accommodate lids of different sizes.

[0027] The handle 2 is operatively connected to the threaded rod 31 to rotate it and thus change the positions of the movable block 32 and the strip 33. The handle 2 and the threaded rod 31 may be connected to each other via racks.

[0028] In one embodiment, the front end of the housing 1 is provided with two through-holes arranged symmetrically. The two ends of the strip 33 each extend through the corresponding through-holes into the cavity 13. The two ends of the strip 33 are each connected to opposite sides of the movable block 32, so that the movement states of the two ends of the strip 33 are evenly synchronized.

[0029] The housing 1 includes a curved surface. The curved surface is located between the two through-holes, and the curved surface cooperates with a portion of the strip 33 extending outside the housing 1 to form a receiving space configured to receive the container lid. The curved surface conforms to the contour of the lid.

[0030] In one embodiment, the curved surface comprises a friction portion disposed on a side facing the receiving space. The friction portion 14 is in contact with the lid and increases the frictional force between them, thereby preventing the container opener from rotating relative to the lid during the lid opening process. Furthermore, the friction portion 14 is configured to provide a damping effect and thereby prevent damage to the housing 1. In another embodiment, the strip 33 comprises a friction portion disposed on a side facing the receiving space. In another embodiment, the curved surface and the strip 33 comprise a friction portion disposed on a side facing the receiving space.

[0031] The friction portion 14 may comprise a plurality of projections. The friction portion 14 is elastic and, when the strip 33 is locked, provides a cushioning effect that protects the housing 1 and / or the container lid from damage. The friction portion 14 may be made of rubber or another material with resilient properties.

[0032] As in Fig. 3, in one embodiment, the housing 1 comprises a first segment 11 and a second segment 12 extending from a front end of the first segment 11. The first segment 11 has a circular cross-section, and the opening is located at a rear end of the first segment 11.

[0033] The handle 2 is arranged concentrically around a longitudinal section of the first segment 11 and is rotatably connected to at least a part of the first segment 11. As shown in Fig. As shown in Figure 6, the handle 2 may comprise a tubular structure with an inner wall provided with an annular projection, while the outer wall of the first segment 11 forms a corresponding annular groove. The annular projection is slidably connected to the annular groove, thereby enabling a pivotal connection between the handle 2 and the housing 1.

[0034] The cross-sectional dimension of the first segment 11 is smaller than that of the rear end of the second segment 12. The handle 2 has a cross-sectional dimension substantially identical to the rear end of the second segment 12, so that the overall dimension of the handle 2, when installed on the first segment 11, is substantially the same as the second segment 12, thereby improving visual continuity and aesthetic appearance.

[0035] The first segment 11 has a cross-sectional dimension that tapers from the front end to the rear end, so that the inner wall of the first segment 11 is configured to limit the position of the strip 33, thereby reducing the likelihood of torsional deformation of the strip 33 and ensuring smooth extension and retraction of the strip 33. To facilitate gripping by the user, the handle 2 maintains a substantially constant cross-sectional dimension.

[0036] A front end of the second segment 12 forms two through holes, and the strip 33 extends through the through holes. In particular, the front end of the second segment 12 has a substantially rectangular cross-sectional shape, and the rear end of the second segment 12 has a substantially circular cross-sectional shape, which conforms to ergonomic design principles.

[0037] The front end of the threaded rod 31 is rotatably connected to the front end of the second segment 12. The rear end of the threaded rod 31 is rotatably mounted on a support plate that is fixedly connected to the rear end of the first segment 11, thereby ensuring smooth rotation of the threaded rod 31 within the housing 1.

[0038] In one embodiment, the first segment 11 is formed by the removable connection of two first half-housings. The second segment 12 is formed by the removable connection of two second half-housings. The removable connection of the half-housings allows the user to easily disassemble the housing 1 for inspection, repair, or replacement of internal components. Each first half-housing is formed integrally with a corresponding second half-housing, which increases durability and simplifies assembly. The two first half-housings can be connected to each other via bolt connections or snap locks. A ring is fitted onto the rear end of the first segment 11 to increase the reliability of the connection between the two first half-housings, as shown in Fig. 4 and Fig. 5. The first two half-housings can be connected to each other using bolt connections or snap locks.

[0039] In one embodiment, the first segment 11 is formed by the detachable connection of two first half-housings. The second segment 12 is formed by the detachable connection of two second half-housings. Each first half-housing is detachably connected to a corresponding second half-housing.

[0040] In one embodiment, an external rack is disposed at the rear end of the threaded rod 31 and an internal rack is disposed within the handle 2. The external rack and the internal rack are connected to each other at the opening of the housing 1. The internal rack is disposed at the rear end within the handle 2 and provides an extended engagement length between the handle 2 and the housing 1. The handle 2 may also be operatively connected to the threaded rod 31 via alternative drive linkage mechanisms known in the art that are configured to transmit rotational movement from the handle 2 to the threaded rod 31.

[0041] As in Fig. As shown in Figure 7, in one embodiment, the rear end of the handle 2 is provided with a fastener 22. The fastener 22 is connected to the rear end of the threaded rod 31 to ensure a reliable connection between the handle 2 and the threaded rod 31. The fastener 22 can be a bolt. A plate is removably connected to the rear end of the handle 2 to conceal the fastener 22 and thus improve the aesthetic appearance.

[0042] The handle 2 may be provided with a non-slip structure on its surface to increase grip and facilitate the application of rotational force by a user.

[0043] As in Fig. 1 and Fig. 8, in one embodiment, the container opener further comprises a locking assembly 4. The locking assembly 4 is slidably installed on the housing 1 and configured to engage the handle 2. The locking assembly 4 is operatively movable between a locking position in which it is engaged with the handle 2 to prevent rotation of the handle 2, and an unlocking position in which it is disengaged from the handle 2 to allow rotation of the handle 2. After the length of the strip 33 is adjusted, the locking assembly 4 locks the relative position of the handle 2 and the housing 1 so that the threaded rod 31 cannot be rotated, thereby ensuring that the length of the strip 33 extending outside the housing 1 remains secured. Furthermore, this engagement prevents the container opener from becoming loosely connected to the lid.

[0044] The locking assembly 4 includes an external gear ring 41. The external gear ring 41 is slidably mounted on the first segment 11 along the longitudinal axis, and the front end of the handle 2 is provided with an internal gear toothing 21 configured to engage with the external gear ring 41. In the engaged state, the external gear ring 41 and the internal gear toothing 21 cooperate to lock the rotational movement of the handle 2 without restricting axial movement. To release the locking assembly 4, the external gear ring 41 is slidably movable relative to the internal gear toothing 21 to achieve smooth disengagement.

[0045] The external gear ring 41 includes an outer wall with a plurality of first gear teeth spaced apart from each other in the circumferential direction. Each first gear tooth extends along the axial direction of the housing 1. The internal gear tooth 21 is arranged on the inner wall of the handle 2. The distribution of the first gear tooth and the internal gear tooth is such that at least one of them is arranged over an entire 360-degree circumference. For example, the first gear tooth is arranged in a continuous 360-degree circumferential arrangement, and the internal gear tooth 21 is arranged in a segmented, curved configuration extending between 30 degrees and 360 degrees of the inner wall. The first gear tooth and the internal gear tooth 21 are configured for selective meshing by axial displacement of the locking assembly.

[0046] An outer ring 42 is arranged on the outer gear ring 41 and configured so that a user can move the outer gear ring 41 by operating the outer ring 42. The outer ring 42 is fitted onto the outer gear ring 41 and connected to an end of the outer gear ring 41 facing away from the handle 2, so that an axial movement of the outer ring 42 adjusts the position of the outer gear ring 41. A gap is formed between the inner wall of the outer ring 42 and the outer gear ring 41, the thickness of which is not less than that of the wall of the handle 2, thereby preventing the outer gear ring 41 from being inserted into the handle 2.

[0047] The outer ring 42 may be connected to the opposite end of the outer gear ring 41 via a rod or a plate.

[0048] When adjustment of the exposed length of the strip 31 outside the housing 1 is required, the outer ring 42 is slid to disengage the outer gear ring 41 from the internal gear toothing 21, allowing free rotation of the handle 2 to drive the threaded rod 31 for length adjustment. When the desired length of the strip 33 is reached, the sliding of the outer ring 42 causes the outer gear ring 41 to align and engage the internal gear toothing 21, locking both the handle 2 and the threaded rod 31 in position to prevent inadvertent rotation. The locking assembly 4 has multiple contact points that engage the handle 2, ensuring secure locking.

[0049] In one embodiment, the inner wall of the outer gear ring 41 forms a groove extending along the longitudinal axis, and the outer wall of the first segment 11 is correspondingly provided with a web which is slidably connected to the groove, as in Fig. 3. The web and the sliding groove provide for guided linear movement of the movable external gear ring 41. One or more webs may be spaced circumferentially along the first segment 11, with one or more sliding grooves arranged to align with the webs.

[0050] The sliding range of the outer gear ring 41 allows both complete disengagement and complete engagement between the internal gear teeth 21 and the outer gear ring 41. By sliding the outer ring 42 to a maximum rearward position, the outer gear ring 41 is fully engaged with the internal gear teeth 21, thereby establishing a locking state. By sliding the outer ring 42 to a maximum forward position, the outer gear ring 41 is fully disengaged from the internal gear teeth 21, thereby establishing an unlocking state.

[0051] In one embodiment, the sliding range of the locking assembly 4 is limited by the rear edge of the second segment 12 and the front edge of the handle 2. Since the cross-sectional dimension of the first segment 11 is smaller than that of the rear end of the second segment 12, when the outer gear ring 41 slides forward to its maximum extent, it contacts the rear edge of the second segment 12, thereby preventing the outer gear ring 41 from moving further forward. When the outer gear ring 41 slides rearward to its maximum extent, the connection position between the outer gear ring 41 and the outer ring 42 contacts the front edge of the handle 2, thereby preventing the outer gear ring 41 from moving further rearward.

[0052] In one embodiment, the housing 1 is provided with direction indicators on its outer surface, as shown in Fig. 1 to indicate the directions of rotation for locking or unlocking.

[0053] As in Fig. 5 and Fig. 9, in one embodiment, the locking assembly 4 further includes a washer 43 installed on the first segment 11. The washer 43 is disposed between the outer gear ring 41 and the first segment 11 and includes an outer wall in sliding contact with the inner wall of the outer gear ring 41.

[0054] Two washers 43 can be installed over the first segment 11 and are arranged at the front and rear ends of the web. The outer surfaces of the washers 43 are flush with the bottom surface of the web. This arrangement ensures alignment between the washers 43 and the web and enables smooth movement of the external gear ring 41.

[0055] The container opener offers a versatile and user-friendly solution for opening containers of various sizes. The adjustment mechanism, locking assembly, and ergonomic design make it a significant improvement over conventional container openers.

[0056] A method for operating the container opener includes the following steps: (a) sliding the locking assembly 4 to disengage the external gear ring 41 from the internal gear teeth 21; (b) rotating the handle 2 to rotate the threaded rod 31, whereby the movable block 32 moves along the extending direction of the threaded rod 31, thereby adjusting the extending length of the strip 33 outside the housing 1 so that the receiving space can be adjusted; (c) inserting the lid into the receiving space composed of the extended part of the strip 33 and the curved surface, or moving the container opener and passing the lid through the receiving space; (d) rotating the handle 2 to establish firm contact between the strip 33, the friction portion 14 and the lid; (e) sliding the locking assembly 4 to engage the external gear ring 41 with the internal gear teeth 21, thereby locking the handle 2 in position and maintaining the positional stability of the strip 33; (f) rotating the entire container opener to cause the container opener to rotate the lid relative to the container; or rotating the entire container opener and the container in opposite directions at the same time, thereby opening the lid.

[0057] In some application situations, the container opener can also be used as a tool for closing the lid on the container.

[0058] The container opener utilizes the lever principle to transfer the force acting on the lid to the container opener. The contact point between the lid and the container opener serves as the lever's pivot point, while handle 2 acts as the other end of the lever. Applying force to handle 2 at a point away from the pivot point allows the lid to be opened or closed with less effort.

[0059] Finally, it should be noted that the above descriptions merely represent some embodiments of the present application and are not intended to limit the present application, even if the present application is described in detail with reference to the above embodiments. Those skilled in the art may still modify the technical solutions described in the above embodiments or substitute some technical features with equivalents, and any modification, equivalent replacement, improvement, and the like made within the spirit and principle of the present application falls within the scope of the present application.

Claims

[1] Container opener, comprising: a housing defining a cavity extending along a longitudinal axis from a front end for engagement with a container lid to a rear end opposite the front end; an adjustment mechanism disposed within the cavity, the adjustment mechanism comprising: a guide element arranged within the cavity and extending along the longitudinal axis; a movable block connected to the guide member and configured to move relative to the housing; and a strip partially disposed outside a front end of the housing, two ends of the strip extending into the cavity and connected to the movable block; and a handle operatively connected to the adjustment mechanism for driving movement of the movable block. [2] Container opener according to claim 1, characterized by , that: (a) the guide element comprises: (i) a threaded rod rotatably connected to the housing and extending along the longitudinal axis; (ii) a rail disposed within the cavity and extending parallel to the threaded rod; (b) the movable block (i) forms a threaded bore which engages the threaded rod; (ii) a sliding surface mateable with the rail for relative movement; and (c) the handle is operatively connected to the threaded rod to drive its rotation. [3] Container opener according to claim 1, characterized by , that: the front end of the housing forms two through holes; and the two ends of the strip extend through the two through holes into the cavity and are each connected to opposite sides of the movable block. [4] Container opener according to claim 3, characterized by , that: the housing comprises a curved surface located between the two through holes; the curved surface cooperates with a portion of the strip located outside the housing to form a receiving space; and the receiving space is configured to accommodate the container lid. [5] Container opener according to claim 4, characterized by , that: at least one of the curved surface and the portion of the strip located outside the housing comprises a friction portion arranged on a side facing the receiving space. [6] Container opener according to claim 5, characterized bythat the friction portion is elastic and / or that the friction portion comprises a plurality of projections. [7] Container opener according to claim 2, characterized by that the handle is attached to a section of the housing and is rotatably connected to the housing. [8] Container opener according to claim 7, characterized by , that: the handle comprises a tubular structure, the tubular structure comprising an inner wall with an annular projection; and the housing includes an outer wall defining a corresponding annular groove, the annular groove being configured to slidably engage the annular projection. [9] Container opener according to claim 2, characterized by , that: the threaded rod is provided with an external rack at a rear end; and the handle comprises an inner rack which cooperatively engages with the outer rack. [10] Container opener according to claim 9, characterized by that the inner rack is located at a rear end of the handle. [11] Container opener according to claim 2, characterized by that the handle includes a fastener connected to the rear end of the threaded rod. [12] Container opener according to claim 2, characterized by that the housing comprises the following in sequence: (a) a first segment comprising: a rear end forming an opening that coincides with the rear end of the threaded rod; and wherein the handle is rotatably installed on the first segment and is drivingly connected to the threaded rod via the opening; (b) a second segment extending from a front end of the first segment and comprising: a rear end having a larger cross-sectional dimension than the cross-sectional dimension of the first segment; and a front end that forms two through holes for the strip. [13] Container opener according to claim 12, characterized by , that: a front end of the threaded rod is rotatably connected to the front end of the second segment; and a rear end of the threaded rod is rotatably connected to the rear end of the first segment. [14] Container opener according to claim 12, characterized by that the first segment tapers in cross-sectional dimension from the front end to the rear end. [15] Container opener according to claim 2, further comprising: a locking assembly slidably mounted on the housing and operatively positioned between: a locking position in which the locking assembly engages the handle to prevent its rotation; and an unlocking position in which the locking assembly is released from the handle to allow its rotation. [16] Container opener according to claim 15, characterized by that the locking assembly includes: an external gear ring slidably mounted on the housing along the longitudinal axis; wherein the handle includes an inner wall with internal gear teeth; wherein the internal gear teeth are configured to engage the external gear ring; and an outer ring surrounding the outer gear ring and connected to an end of the outer gear ring remote from the handle, wherein a gap between an inner wall of the outer ring and an outer wall of the outer gear ring has a thickness not less than a wall thickness of the handle. [17] Container opener according to claim 16, characterized by , that: the outer gear ring forms a sliding groove extending along the longitudinal axis on an inner wall; and the housing comprises a web which projects from an outer wall and is slidably connected to the sliding groove. [18] Container opener according to claim 16, characterized by that the outer gear ring comprises first gear teeth which are spaced apart from one another along the outer wall in a circumferential direction, wherein at least one of the first gear teeth or the internal gear teeth is distributed over an entire circumference of 360 degrees. [19] Container opener according to claim 16, characterized by that the locking assembly further comprises: a washer installed on the housing and interposed between the external gear ring and the housing, the washer including an outer wall in sliding contact with the inner wall of the external gear ring. [20] Container opener, comprising: a housing defining a cavity extending along a longitudinal axis from a front end for engagement with a container lid to a rear end opposite the front end; an adjustment mechanism disposed within the cavity, the adjustment mechanism comprising: a guide element arranged within the cavity and extending along the longitudinal axis; a movable block connected to the guide member and configured to move relative to the housing; and a strip partially disposed outside a front end of the housing, two ends of the strip extending into the cavity and connected to the movable block; a handle operatively connected to the adjustment mechanism for driving movement of the movable block; and a locking assembly slidably mounted on the housing and operatively positioned between: a locking position in which the locking assembly engages the handle to prevent its movement; and an unlocking position in which the locking assembly is disengaged from the handle to allow its movement.

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