A convenient and practical heavy-duty F-type wrench
By designing a heavy hammer F-type wrench with a sliding hammer impact torque amplification function, the problems of low operating efficiency and space limitation caused by the structural limitations of traditional F-type wrenches are solved, achieving the effect of efficiently loosening valves.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- SHANDONG IRON & STEEL GRP YONGFENG LINGANG CO LTD
- Filing Date
- 2025-08-12
- Publication Date
- 2026-06-30
AI Technical Summary
Traditional F-type wrenches are limited by their structure. The single lever structure relies on the length of the human arm, and the operator needs to shake it repeatedly or use an extended sleeve to loosen the fastened valve. This is inefficient and cannot be used in space-constrained scenarios.
A heavy hammer F-wrench was designed. By using the torque amplification function of the sliding hammer to impact the end of the upright, the lateral force of the F-wrench is increased, providing instantaneous impact torque to facilitate valve rotation.
It improves the efficiency of valve operation, solves the problem of difficult operation of traditional F-type wrenches in space-constrained scenarios, and enhances the ability to operate in confined spaces.
Smart Images

Figure CN224425444U_ABST
Abstract
Description
Technical Field
[0001] This utility model belongs to the technical field of valve auxiliary switching equipment, specifically relating to a convenient and practical heavy hammer F wrench. Background Technology
[0002] As the pressure resistance of industrial equipment continues to increase and valve manufacturing materials become increasingly stronger, the operating torque required to open and close valves has increased significantly. Traditional F-type wrenches, due to structural limitations, rely on the length of the operator's arm for their single lever structure. Operators need to repeatedly shake the wrench or use an extended sleeve to loosen the tightened valve, which is not only inefficient but also unusable in space-constrained scenarios. Although there are currently improved solutions by welding an extension rod, this simply increases the lever length and does not solve the contradiction between the need for instantaneous high torque output and space constraints, making operation cumbersome.
[0003] Therefore, a convenient and practical heavy-duty F-type wrench is proposed. Utility Model Content
[0004] The purpose of this utility model is to provide a convenient and practical heavy hammer F-type wrench with a sliding hammer impact torque amplification function. It solves the problem that the traditional F-type wrench in the prior art is inefficient and cannot be used in space-constrained scenarios due to its structural limitations, single lever structure, reliance on human arm length, and the need for repeated shaking or the use of an extended sleeve to loosen the fastened valve.
[0005] To achieve the above objectives, the technical solution adopted by this utility model is as follows: This utility model provides a convenient and practical heavy hammer F wrench, including a vertical pole, two vertically arranged horizontal bars at the top of the vertical pole, a sliding rod at the bottom of the vertical pole, a sliding hammer sleeved on the sliding rod, a plug at the end of the sliding rod, and a slot for matching the plug through the center of the sliding hammer.
[0006] Preferably, the slot of the sliding hammer is a cylindrical through hole, and the diameter of the through hole matches the diameter of the sliding rod.
[0007] Preferably, the plug is fixed to the end of the sliding rod by a threaded connection.
[0008] Preferably, the sliding rod is detachably fixed to the upright rod via a threaded connection.
[0009] Preferably, the upright is provided with anti-slip handle sleeves in the middle and at the bottom.
[0010] Preferably, a wear-resistant layer is provided at one end of the slide hammer near the sliding rod.
[0011] Compared with the prior art, the advantages and positive effects of this utility model are as follows:
[0012] 1. The sliding hammer at the tail of this utility model strikes the tail of the F wrench, increasing the lateral force on the F wrench, thus making it easier to turn the valve;
[0013] 2. This utility model has a sliding hammer impact torque amplification function, which solves the problem that the traditional F-type wrench in the prior art is inefficient and cannot be used in space-constrained scenarios due to the structural limitations of the single lever structure, which relies on the length of the human arm. The operator needs to shake it repeatedly or use an extended sleeve to loosen the fastened valve. Attached Figure Description
[0014] To more clearly illustrate the technical solutions of the embodiments of this utility model, the drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.
[0015] Figure 1 This is a schematic diagram of the structure of a convenient and practical heavy hammer F wrench according to one embodiment;
[0016] In the above diagram, 1 is the upright pole, 2 is the horizontal bar, 3 is the sliding bar, 4 is the sliding hammer, 5 is the end cap, and 6 is the anti-slip handle sleeve. Detailed Implementation
[0017] To better understand the above-mentioned objectives, features, and advantages of this utility model, the present utility model will be further described below with reference to the accompanying drawings and embodiments. It should be noted that, unless otherwise specified, the embodiments and features described in these embodiments can be combined with each other.
[0018] Many specific details are set forth in the following description in order to provide a full understanding of the present invention. However, the present invention may also be implemented in other ways different from those described herein. Therefore, the present invention is not limited to the specific embodiments disclosed in the following specification.
[0019] Example 1, such as Figure 1 As shown, a convenient and practical heavy hammer F wrench includes a vertical rod 1. The top of the vertical rod 1 is provided with two vertically arranged horizontal bars 2. The vertical rod 1 serves as the main load-bearing structure, transmitting the leverage force applied by the operator. The horizontal bars 2 connected at the top are inserted parallel to both sides of the valve handwheel to prevent slippage and dislocation during operation. The spacing of the horizontal bars 2 is designed to be compatible with the thickness of mainstream valve handwheels.
[0020] A sliding rod 3 is installed at the bottom of the upright 1, and a sliding hammer 4 is fitted onto the sliding rod 3. A plug 5 is installed at the end of the sliding rod 3, and a slot matching the plug 5 is provided at the center of the sliding hammer 4. The sliding rod 3 provides a linear movement path for the sliding hammer 4, guiding the impact force to be accurately transmitted to the end of the upright 1. The end of the sliding rod 3 is connected to the plug 5, forming a closed anti-detachment structure. The sliding hammer 4 accelerates its impact on the upright 1 by manually sliding, generating an instantaneous impact torque.
[0021] The specific design of the aforementioned key components will be discussed in detail below:
[0022] The slot in the sliding hammer 4 is a cylindrical through hole, the diameter of which matches the diameter of the sliding rod 3. The diameter of the through hole is the diameter of the sliding rod 3 plus a gap of 0.5-1mm, for example... Pole pairing The inner wall of the hole is finished by turning with a surface finish of Ra≤3.2μm. The clearance fit avoids metal seizing, reduces sliding resistance, and the cylindrical surface contact ensures that the sliding hammer 4 impacts in a straight line.
[0023] The plug 5 is fixed to the end of the sliding rod 3 by a threaded connection, and the sliding rod 3 is detachably fixed to the upright 1 by a threaded connection. The detachable threaded connection facilitates the removal of the sliding hammer 4 for maintenance, and also facilitates the replacement of easily damaged parts such as the sliding rod 3, the sliding hammer 4, and the plug 5.
[0024] The upright pole 1 is provided with anti-slip handle sleeves 6 in the middle and at the bottom. The anti-slip handle sleeves 6 provide a high-friction grip surface, making lever operation comfortable and effortless. They can also be held firmly even when there is no need for the sliding hammer 4 to strike, avoiding the risk of slipping out of the hand, and can still be operated reliably in wet and slippery environments.
[0025] The sliding hammer 4 is provided with a wear-resistant layer at one end near the sliding rod 3. The wear-resistant layer is a rubber layer that undergoes elastic deformation when the sliding hammer 4 hits the plug 5, absorbing the impact kinetic energy and significantly reducing the peak stress transmitted to the upright 1. After the rubber layer wears down, the upright 1 body remains intact, avoiding overall scrapping and extending the service life by replacing vulnerable parts.
[0026] All standard parts used in this utility model can be purchased from the market, and irregular parts can be customized according to the description and drawings. The specific connection methods of each part adopt conventional methods such as bolts, rivets, and welding that are mature in the prior art. The machinery, parts and equipment adopt conventional models in the prior art. In addition, the circuit connection adopts conventional connection methods in the prior art, which will not be described in detail here. The contents not described in detail in this specification belong to the prior art known to those skilled in the art.
[0027] The above description is merely a preferred embodiment of the present utility model and is not intended to limit the present utility model in any other way. Any person skilled in the art may make changes or modifications to the above-disclosed technical content to create equivalent embodiments for application in other fields. However, any simple modifications, equivalent changes, and modifications made to the above embodiments based on the technical essence of the present utility model without departing from the technical solution of the present utility model shall still fall within the protection scope of the technical solution of the present utility model.
Claims
1. A convenient and practical heavy-duty F-type wrench, comprising a vertical pole, with two vertically arranged horizontal bars at the top of the vertical pole, characterized in that, The bottom of the pole is provided with a sliding rod, a sliding hammer is sleeved on the sliding rod, a plug is provided at the end of the sliding rod, and a slot for matching the plug is provided through the center of the sliding hammer.
2. The convenient and practical heavy-duty F-type wrench according to claim 1, characterized in that, The slot of the sliding hammer is a cylindrical through hole, and the diameter of the through hole matches the diameter of the sliding rod.
3. The convenient and practical heavy-duty F-type wrench according to claim 1, characterized in that, The plug is fixed to the end of the sliding rod by a threaded connection.
4. The convenient and practical heavy-duty F-type wrench according to claim 1, characterized in that, The sliding rod is detachably fixed to the upright rod via a threaded connection.
5. A convenient and practical heavy-duty F-type wrench according to claim 1, characterized in that, The upright is equipped with anti-slip handle sleeves in the middle and at the bottom.
6. A convenient and practical heavy-duty F-type wrench according to claim 1 or 2, characterized in that, The slide weight has a wear-resistant layer at one end near the sliding rod.