A composite type knocking rod

Abstract

The utility model belongs to the field of precision equipment installation discloses a composite knock stick, including holding sleeve, the lead bar of filling in the inside of holding sleeve, the shape, size of lead bar and the shape, size of inside of holding sleeve are compatible, the both ends of holding sleeve respectively set up one knock head by copper material quality. The utility model can reduce the production cost of knock stick, can also realize bigger knock strength, the utility model is applicable to precision equipment installation industry, is used for knocking the surface of equipment and realizes assembly.

Description

Technical Field

[0001] This utility model belongs to the field of precision equipment installation, specifically a composite striking rod. Background Technology

[0002] During the construction and maintenance of thermal power plants, the installation of equipment (such as the alignment and positioning of precision equipment like steam turbines, generators, and pumps) often requires the use of hammering tools for fine-tuning and assembly. Directly using steel hammering tools on such precision equipment can easily damage the surface; therefore, copper rods are typically used for hammering. Copper rods, due to their relatively soft material and high density, provide appropriate hammering force while effectively protecting the surface of the parts being hammered from damage.

[0003] However, existing striking copper rods have the following drawbacks: First, the striking rods are made entirely of copper, which is expensive and limits the number that can be equipped on construction sites, thus affecting construction efficiency. Second, to achieve greater striking force, heavier (thicker or longer) copper rods are often required, which further exacerbates the cost problem. Utility Model Content

[0004] To address the aforementioned shortcomings in the existing technology, this utility model aims to provide a composite striking rod that reduces costs while providing sufficient striking force.

[0005] To achieve the above objectives, the technical solution adopted by this utility model is as follows: A composite striking rod includes a holding sleeve and a lead rod filled inside the holding sleeve. The shape and size of the lead rod are adapted to the shape and size of the inside of the holding sleeve. A striking head made of copper is provided at each end of the holding sleeve.

[0006] As a limitation of this utility model: a connecting sleeve is provided between the striking head and the holding sleeve, the connecting sleeve and the holding sleeve are detachably connected, and the striking head and the connecting sleeve are fixedly connected.

[0007] As a further limitation of this utility model: the connecting sleeve is inverted U-shaped with the U-shaped opening facing the striking head, and the striking head is wedged into the U-shaped opening of the connecting sleeve.

[0008] As a further limitation of this utility model: the inner wall surface of the connecting sleeve is a tapered conical surface, and the diameter of the inner wall surface gradually decreases from the bottom of the U-shaped opening to the end of the U-shaped opening.

[0009] As a further limitation of this utility model: a spring is provided inside one end of the gripping sleeve, and the extension and retraction direction of the spring is along the axial direction of the gripping sleeve; the spring is located between the connecting sleeve and the end of the lead rod, the end of the spring near the connecting sleeve is fixedly connected to the connecting sleeve, and the end of the spring near the lead rod abuts against the end of the lead rod.

[0010] As a further limitation of this utility model: the grip sleeve and the connecting sleeve are made of stainless steel.

[0011] As another limitation of this utility model: a shoulder strap is fixedly provided on the grip sleeve.

[0012] As a further limitation of this utility model: several anti-slip structures are provided on the outer wall of the grip sleeve.

[0013] As a further limitation of this utility model: the grip sleeve and the striking head are cylindrical structures.

[0014] By adopting the above technical solution, the beneficial effects achieved by this utility model compared with the prior art are as follows: This utility model includes a holding sleeve and a lead rod filled inside the holding sleeve. Each end of the holding sleeve is equipped with a striking head made of copper. By employing a composite structure combining copper striking heads with an internal lead rod, and using lead, which costs only 1 / 5 the price of copper, as the main material, the material cost of a single striking rod is significantly reduced. This solves the problem of the high price and limited quantity of pure copper rods, allowing for large-scale use on-site and thus improving construction efficiency. Because lead has a higher density than copper, this invention has a greater overall weight while maintaining the same external dimensions as a traditional copper rod. Therefore, it can generate a greater impact force when struck, effectively solving the contradiction of increased cost due to the increased weight of traditional copper rods. The striking head in this invention retains the copper material, which can effectively protect the surface being struck from damage when striking equipment parts, thus inheriting the advantages of traditional copper rods.

[0015] In summary, this invention can reduce the production cost of the striking rod and achieve a greater striking force; this invention is applicable to the precision equipment installation industry and is used to achieve assembly by striking the surface of equipment. Attached Figure Description

[0016] The present invention will now be described in further detail with reference to the accompanying drawings and specific embodiments.

[0017] Figure 1 This is a cross-sectional structural diagram of an embodiment of the present utility model (the anti-slip structure is not shown). Figure 2 for Figure 1 An enlarged schematic diagram of part A in the middle.

[0018] In the diagram: 1-Holding sleeve, 2-Lead rod, 3-First striking head, 4-Second striking head, 5-Connecting sleeve, 51-Inner wall surface, 6-Spring, 7-Holding area, 8-Shoulder strap, 9-Fixing ring. Detailed Implementation

[0019] The preferred embodiments of the present invention will be described below with reference to the accompanying drawings. It should be understood that the preferred embodiments described herein are for illustration and explanation only and do not constitute a limitation thereof.

[0020] The directional terms or positional relationships such as "upper" and "lower" used in the embodiments are based on the drawings in this utility model specification. Figure 1 The orientation relationships are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or component must have a specific orientation, or that it must be constructed and operated in a specific orientation. Therefore, they should not be construed as limiting the content protected by this utility model.

[0021] like Figures 1-2 As shown, this embodiment includes a grip sleeve 1, a lead rod 2 filled inside the grip sleeve 1, and a striking head disposed at the end of the grip sleeve 1. This embodiment adopts a composite structure of a copper striking head combined with the internal lead rod 2.

[0022] The grip sleeve 1 is cylindrical in shape and made of stainless steel. The shape and size of the lead rod 2 are adapted to the internal shape and size of the grip sleeve 1. This adaptation means that the diameter of the lead rod 2 is equal to the inner diameter of the grip sleeve 1, and the length of the lead rod 2 is equal to or slightly less than the length of the grip sleeve 1, ensuring that the lead rod 2 can be placed inside the grip sleeve 1. In this embodiment, the length of the lead rod 2 is slightly less than the length of the grip sleeve 1. In this embodiment, length refers to the vertical dimension. Since the price of lead is only 1 / 5 that of copper, this embodiment significantly reduces the material cost of a single striking rod; furthermore, lead has a higher density than copper, and while maintaining the same external dimensions as a traditional copper rod, this embodiment has a greater overall weight, thus generating a greater impact force during striking.

[0023] like Figure 1 As shown, each end of the holding sleeve 1 is provided with a striking head made of copper, referred to as the first striking head 3 and the second striking head 4. The two have the same structure and are both cylindrical in shape.

[0024] Taking the first striking head 3 as an example, such as Figure 1 , 2 As shown, a connecting sleeve 5 is provided between the first striking head 3 and the holding sleeve 1. The connecting sleeve 5 is made of stainless steel and is detachably connected to the holding sleeve 1. In this embodiment, the connecting sleeve 5 and the holding sleeve 1 are threaded together. The first striking head 3 is fixedly connected to the connecting sleeve 5. Specifically, the connecting sleeve 5 is in the shape of an inverted U and the U-shaped opening faces the first striking head 3 (i.e., the U-shaped opening faces downward). The first striking head 3 is wedged into the U-shaped opening of the connecting sleeve 5 to achieve fixation.

[0025] Furthermore, the inner wall surface 51 of the connecting sleeve 5 is a tapered conical surface, with the diameter of the inner wall surface 51 gradually decreasing from the bottom of the U-shaped opening to the end of the U-shaped opening. In other words, the diameter of the inner wall surface 51 gradually decreases from top to bottom, forming a conical surface with guiding and tightening functions. This structure can achieve self-tightening and anti-detachment effects. Specifically, firstly, during initial assembly, the operator wedges the first striking head 3 into the connecting sleeve 5 along the conical surface inward (i.e., upward). Because the copper material is relatively soft, a slight deformation will occur during the pressing process, causing it to initially fit against the inner wall surface 51 of the connecting sleeve 5. Secondly, during the striking operation, this embodiment presents... Figure 1 In the vertical position shown, the circular end face at the bottom of the first striking head 3 is used to strike the surface of the equipment. The first striking head 3 will inevitably deform (such as thickening) due to the continuous impact force. This deformation will drive the first striking head 3 to produce a certain displacement along the radial direction of the connecting sleeve 5, so that the first striking head 3 and the connecting sleeve 5 are connected more tightly, preventing the first striking head 3 from separating from the connecting sleeve 5.

[0026] The second striking head 4 is also connected to the upper end of the holding sleeve 1 via a connecting sleeve 5, in the same way as the first striking head 3, and will not be described in detail here. In use, either the first striking head 3 or the second striking head 4 can be selected to strike the device.

[0027] like Figure 1 As shown, a spring 6 is installed inside one end of the gripping sleeve 1. In this embodiment, the spring 6 is located at the lower end of the gripping sleeve 1, and the extension and retraction direction of the spring 6 is along the axial direction of the gripping sleeve 1. The spring 6 is located between the connecting sleeve 5 and the lower end of the lead rod 2. The end of the spring 6 near the connecting sleeve 5 (i.e., the lower end of the spring 6) is fixedly connected to the connecting sleeve 5, and the end of the spring 6 near the lead rod 2 (i.e., the upper end of the spring 6) elastically abuts against the end of the lead rod 2. When the connecting sleeve 5 is threadedly fixed to the gripping sleeve 1, the spring 6 is in a compressed state, which can generate an axial preload on the lead rod 2, so that the lead rod 2 is pressed tightly in the internal space of the gripping sleeve 1, preventing shaking during transportation. In addition, when using this device to strike, the spring 6 can provide a buffering effect on the lead rod 2, reducing the risk of fatigue damage (such as end deformation or cracking) caused by stress concentration under frequent and severe impact loads, thereby helping to extend the overall service life of the tool.

[0028] To improve this embodiment, the gripping area 7 on the outer wall of the gripping sleeve 1 is provided with several anti-slip structures. The gripping area 7 is the part mainly covered and exerted by the palm and fingers when the operator holds this embodiment to strike. In this embodiment, the anti-slip structure is a wave-like structure formed on the outer surface of the gripping sleeve 1 using a knurling cutter on a lathe, which is used to increase the friction of the hand. The processing method of the anti-slip structure is prior art and will not be described in detail here. It should be noted that... Figure 1 The anti-slip structure is not shown.

[0029] like Figure 1 As shown, in this embodiment, a shoulder strap 8 is fixedly provided on the grip sleeve 1. A fixing ring 9 is fixedly provided on the outer wall of the grip sleeve 1, and the end of the shoulder strap 8 is fastened to the fixing ring 9. Since actual operation scenarios are often at heights, the shoulder strap 8 is worn on the body during use to prevent the risk of the embodiment falling and injuring people due to improper operation. It should be noted that, to ensure that adult operators can easily and repeatedly lift and repeatedly hold this embodiment for striking operations, the overall weight of this embodiment is about 15kg. Even if this embodiment falls, it will not generate a dangerous pulling force sufficient to cause the operator to lose balance or fall.

[0030] It should be noted that the above description is merely a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the above embodiments, those skilled in the art can still modify the technical solutions described in the above embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A composite percussion stick, characterized in that, It includes a grip sleeve and a lead rod filled inside the grip sleeve. The shape and size of the lead rod are adapted to the shape and size of the inside of the grip sleeve. Each end of the grip sleeve is provided with a striking head made of copper.

2. The composite percussion rod according to claim 1, characterized in that, A connecting sleeve is provided between the striking head and the holding sleeve. The connecting sleeve and the holding sleeve are detachably connected, while the striking head is fixedly connected to the connecting sleeve.

3. A composite percussion rod according to claim 2, characterized in that, The connecting sleeve is in the shape of an inverted U, with the U-shaped opening facing the striking head. The striking head is wedged into the U-shaped opening of the connecting sleeve.

4. A composite percussion rod according to claim 3, characterized in that, The inner wall of the connecting sleeve is a tapered conical surface, and the diameter of the inner wall gradually decreases from the bottom of the U-shaped opening to the end of the U-shaped opening.

5. A composite percussion stick according to any one of claims 2-4, characterized in that, A spring is installed inside one end of the gripping sleeve, and the spring extends and retracts along the axial direction of the gripping sleeve. The spring is located between the connecting sleeve and the end of the lead rod. The end of the spring near the connecting sleeve is fixedly connected to the connecting sleeve, and the end of the spring near the lead rod abuts against the end of the lead rod.

6. A composite percussion rod according to claim 5, characterized in that, The grip sleeve and connecting sleeve are made of stainless steel.

7. A composite percussion stick according to any one of claims 1-4 and 6, characterized in that, A shoulder strap is fixed to the grip sleeve.

8. A composite percussion rod according to claim 7, characterized in that, Several anti-slip structures are provided on the outer wall of the grip sleeve.

9. A composite percussion rod according to claim 8, characterized in that, The grip sleeve and striking head are cylindrical in structure.

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