Self-locking filter wrench
Through the self-locking mechanism and limit design, the problem of loosening of the filter wrench in the clamping state is solved, and a self-locking filter wrench with stable clamping and multi-special adaptability is achieved, which improves operating efficiency and convenience.
Patent Information
- Application Number
- CN202422360226.4
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-09-27
- Publication Date
- 2025-08-05
- Estimated Expiration
- 2034-09-27
AI Technical Summary
The existing filter wrench needs to be manually maintained after clamping, which makes the operation time-consuming and labor-intensive, and the size difference between the positioning hole and the positioning pin leads to loosening and unstable.
The self-locking mechanism with a pawl and a tooth-like structure is adopted to achieve the self-locking effect through the cooperation of the slider, hinge and spring, ensuring the stable clamping state; at the same time, the limiting column and anti-slip teeth are designed to adapt to filters of different specifications.
It realizes the stability of the self-locking filter wrench in the clamping state, reduces manual operation, and adapts to the disassembly and assembly requirements of various specifications of filters.
Smart Images
Figure CN223186431U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of wrenches, in particular to a self-locking filter wrench. Background Art
[0002] The filter wrench uses the principle of leverage to twist the oil filter. When in use, external force is applied to the handle in the direction of thread rotation to twist the oil filter. It is widely used for filter installation and removal. During the installation and removal of the filter, the filter wrench needs to be manually clamped to maintain the wrench in a clamped state after clamping for operation, which is time-consuming and labor-intensive. In the prior art, the wrench is clamped by inserting a locating pin at the end of one handle of the wrench into a locating hole at the end of the other handle. However, in order to facilitate operation, the size of the locating hole is much larger than the size of the locating pin, resulting in this structure not being able to maintain the wrench in a clamped state well and it will still loosen. Therefore, the wrench still needs to be manually clamped, which is time-consuming and labor-intensive and inconvenient to operate. Therefore, those skilled in the art have provided a self-locking filter wrench to solve the problems raised in the above background technology. Summary of the Invention
[0003] The purpose of the utility model is to provide a self-locking filter wrench to solve the problems raised in the above background technology.
[0004] To achieve the above-mentioned purpose, the technical solution adopted by the utility model is: it includes a first handle, a second handle, a self-locking mechanism, a first clip and a second clip; the first handle and the second handle are respectively integrally connected with the first clip and the second clip at the pliers head, and the first handle and the second handle are connected by a self-locking mechanism; the self-locking mechanism includes a rectangular hole, a toothed structure, a slider, a pawl, a hinge, a pin, a stopper and a spring; a rectangular hole is provided on the second handle, one side of the rectangular hole is a toothed structure, one side of the slider is integrally connected with a stopper at one end, and a pawl is provided at the other end, and a spring is installed on the other side of the slider, and the slider is slidably connected in the rectangular hole, and the hinge passes through the rectangular hole on the second handle and the hole on the first handle and is locked with a nut, and a pin is inserted and fixed on the hinge, and the end of the pin is fixed to the first handle; a limiting column is fixed on the inner side of the second handle.
[0005] Furthermore, anti-slip teeth are respectively provided on the inner sides of the first clamping piece and the second clamping piece.
[0006] Furthermore, the pawl and the tooth structure are in an oblique tooth shape.
[0007] After adopting the above structure, the beneficial effects produced by the utility model are as follows: the self-locking filter wrench described in the utility model adopts the cooperation of the pawl and the tooth structure to prevent the slider from sliding down, realize self-locking, thereby maintaining the clamping state and not loosening, which is convenient for use; the pawl and the tooth structure are separated, and the first handle can be moved, thereby facilitating the use of various specifications. BRIEF DESCRIPTION OF THE DRAWINGS
[0008] Figure 1 It is a structural diagram of the utility model;
[0009] Figure 2 yes Figure 1 The back structure diagram of the second handle;
[0010] Figure 3 yes Figure 2 Enlarged view of part A in .
[0011] Description of reference numerals:
[0012] First handle 1, second handle 2, self-locking mechanism 3, rectangular hole 31, tooth structure 32, slider 33, pawl 34, hinge 35, pin 36, stopper 37, spring 38, first clip 4, second clip 5, anti-slip teeth 6, and limiting column 7. DETAILED DESCRIPTION
[0013] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative labor.
[0014] See Figure 1 —— Figure 3As shown, this specific embodiment adopts the following technical solution: it includes a first handle 1, a second handle 2, a self-locking mechanism 3, a first clip 4 and a second clip 5; the first handle 1 and the second handle 2 are respectively connected to the first clip 4 and the second clip 5 at the pliers head, and the first handle 1 and the second handle 2 are connected by the self-locking mechanism 3; the self-locking mechanism 3 includes a rectangular hole 31, a tooth structure 32, a slider 33, a pawl 34, a hinge 35, a pin 36, a stopper 37 and a spring 38; the second handle 2 is provided with a rectangular hole 31, one side of the rectangular hole 31 is a tooth structure 32, one side of the slider 33 is a tooth structure 32, and one side of the slider 33 is a tooth structure 32. The slider 33 is slidably connected to the rectangular hole 31, and the hinge 35 passes through the rectangular hole 31 on the second handle 2 and the hole on the first handle 1 and is locked with a nut. A pin 36 is inserted and fixed on the hinge 35, and the end of the pin 36 is fixed to the first handle 1. When the pin 36 is away from the stopper 37, the slider 33 causes the pawl 34 to insert into the tooth structure 32 under the action of the spring 38; when the pin 36 presses against the stopper 37, the slider 33 rotates around the hinge 35, and the pawl 34 is away from the tooth structure 32.
[0015] A limiting column 7 is fixed on the inner side of the second handle 2. After the wrench of the utility model is adjusted to a gear position, the first handle 1 and the second handle 2 are limited by the limiting column 7 and can then perform a clamping action.
[0016] When the present invention is clamped, the pin 36 is away from the stopper 37, and the slider 33 is not subjected to the force of the pin 36. The slider 33 makes the pawl 34 cooperate with the tooth structure 32 under the action of the spring 38. Utilizing the principle of the ratchet mechanism, since the pawl 34 and the tooth structure 32 are oblique teeth, the slider 33 can slide upward along the rectangular hole 31, and the handle is released. Since the pawl 34 and the tooth structure 32 are oblique teeth, the pawl 34 is inserted into the tooth structure 32, preventing the slider 33 from sliding down, thereby achieving a self-locking effect; force is applied to move the first handle 1 and the second handle 2 away from each other, the pin 36 approaches and supports the stopper 37, and the slider 33 rotates about the hinge 35, and the pawl 34 at the other end of the stopper 37 is away from the tooth structure 32, so that the first handle 1 can slide conveniently along the rectangular hole 31, and the gear position can be conveniently adjusted to meet the disassembly and assembly of filters of different specifications.
[0017] Anti-slip teeth 6 are respectively provided on the inner sides of the first clamping piece 4 and the second clamping piece 5 to prevent the filter from slipping when clamping.
[0018] The above shows and describes the basic principles and main features of the present invention, as well as the advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The above embodiments and descriptions are merely illustrative of the principles of the present invention. Various changes and improvements may be made to the present invention without departing from the spirit and scope of the present invention. Such changes and improvements are intended to fall within the scope of the present invention. The scope of protection claimed in the present invention is defined by the appended claims and their equivalents.
Claims
1. Self-locking filter wrench, characterized by: It includes a first handle, a second handle, a self-locking mechanism, a first clip and a second clip; the first handle and the second handle are respectively integrally connected with the first clip and the second clip at the pliers head, and the first handle and the second handle are connected through the self-locking mechanism; the self-locking mechanism includes a rectangular hole, a toothed structure, a slider, a pawl, a hinge, a pin, a stopper and a spring; the second handle is provided with a rectangular hole, one side of the rectangular hole is a toothed structure, one side of the slider is integrally connected with a stopper at one end, and a pawl is provided at the other end, and a spring is installed on the other side of the slider, and the slider is slidably connected in the rectangular hole, and the hinge passes through the rectangular hole on the second handle and the hole on the first handle and is locked with a nut, and a pin is inserted and fixed on the hinge, and the end of the pin is fixed to the first handle; a limiting column is fixed on the inner side of the second handle.
2. The self-locking filter wrench according to claim 1, characterized in that: Anti-slip teeth are respectively provided on the inner sides of the first clamping piece and the second clamping piece.
3. The self-locking filter wrench according to claim 1, characterized in that: The pawl and the tooth structure are in an oblique tooth shape.