Hammer special for construction of copper-clad steel grounding electrode and construction device

Abstract

The utility model discloses a special hammer for construction of a copper-clad steel grounding electrode and a construction device, and relates to the technical field of grounding electrode construction, the special hammer comprises a sleeve and an inner pipe which is arranged in the sleeve and is matched with the inner diameter of the sleeve, the inner pipe comprises a first stress end facing the top of the sleeve and a first connecting end used for being connected with the grounding electrode, the sleeve is in sliding connection with the inner pipe, the sleeve moves up and down, the top wall of the sleeve acts on the top wall of the inner pipe, force is transmitted to the copper-clad steel grounding electrode connected with the bottom of the inner pipe through the inner pipe, the surface of the copper-clad steel grounding electrode is not directly hammered, and then a copper layer on the surface of the grounding electrode is protected. The hammer special for construction of the copper-clad steel grounding electrode is simple in structure and convenient to operate, compared with an installation mode adopting mechanical punching, the construction amount is small, meanwhile, a guiding effect is provided for force release of the construction hammer in a sliding connection mode, and the construction hammer can more accurately position a stressed component when doing work.

Description

Technical Field

[0001] The utility model relates to the technical field of grounding electrode construction, and specifically, to a special hammer and a construction device for the construction of a copper-clad steel grounding electrode. Background Art

[0002] The copper-clad steel grounding electrode is an important part of a grounding system, usually a metal rod or electrode buried underground. The role of the grounding electrode is to guide current or charge into the ground for release to achieve the purpose of protection and safety.

[0003] There are mainly two conventional installation methods for copper-clad steel grounding electrodes: one is to complete the installation by mechanically drilling a hole and then placing the grounding electrode in the hole. The diameter of the hole drilled by the drilling machine is dozens of times the diameter of the copper-clad steel grounding electrode, resulting in a large amount of backfilling work after installation. The other is the manual installation method, in which the copper-clad steel grounding electrode is directly hammered into the ground by hitting it with a hammer. This method requires at least two people to operate, and it is easy to cause accidental injury to construction workers due to loss of strength or inaccurate positioning when manually holding the hammer for hammering. More importantly, the outer surface of the copper-clad steel grounding electrode is covered with a copper layer, and direct hammering is likely to damage the copper layer, resulting in the failure of the copper-clad steel grounding electrode. Summary of the Utility Model

[0004] The purpose of the utility model is to provide a special hammer and a construction device for the construction of a copper-clad steel grounding electrode, so as to solve the problems of large construction volume in installing the grounding electrode by the mechanical drilling method and easy damage to the copper layer during the hammering method of directly hammering the copper-clad steel grounding electrode.

[0005] To achieve the above purpose, the utility model provides the following technical solutions:

[0006] A special hammer for the construction of a copper-clad steel grounding electrode includes a sleeve and an inner tube disposed inside the sleeve and matching the inner diameter of the sleeve. The inner tube includes a first stress end facing the top of the sleeve and a first connection end for connecting the grounding electrode, and the sleeve is slidably connected to the inner tube.

[0007] In the installation method of conventional copper-clad steel grounding electrodes, there are problems such as a large amount of construction work for installing grounding electrodes when using the mechanical drilling method. At the same time, when using the manual hammering method, there are problems such as difficult positioning and easy damage to the copper layer. The utility model provides a special hammer for the construction of copper-clad steel grounding electrodes, which includes a sleeve and an inner tube placed inside the sleeve. By moving the sleeve up and down, the top wall of the sleeve does work on the top wall of the inner tube, and the force is transmitted to the copper-clad steel grounding electrode connected to the bottom of the inner tube through the inner tube, so that the surface of the copper-clad steel grounding electrode is not directly hammered, thereby realizing the protection of the copper layer on the surface of the grounding electrode. The special hammer for the construction of copper-clad steel grounding electrodes provided by the utility model has a simple structure and is easy to operate. Compared with the installation method of mechanical drilling, the construction amount is small. During operation, the construction personnel can install the grounding electrode into the ground by only one person holding the sleeve and doing work up and down on it. Compared with directly using a hammer to strike, the sliding connection method provides a guiding effect, making the positioning of the stressed component more accurate when the construction hammer does work.

[0008] Further, a through hole is axially opened at the top of the sleeve along the axis of the sleeve, and an adjusting rod that can move axially along the through hole is connected to the through hole, and the adjusting rod is fixed to the through hole through a limiting member.

[0009] For different working conditions, the requirements for the burial depth of the grounding electrode are also different. By setting an adjusting rod at the top of the sleeve and adjusting the length of the adjusting rod inside the sleeve to control the total stroke that the inner tube can move in the sleeve, and then controlling the depth of the grounding electrode installed into the ground, reducing the large error caused by using the human eye to observe or drawing lines on the grounding electrode to control the burial depth of the grounding electrode.

[0010] Further, the inner tube further includes an intermediate tube section, the first force-bearing end, the intermediate tube section, and the first connection end are sequentially connected from the top of the sleeve downward along the axis of the sleeve. The intermediate tube section is a hollow member, and both the first force-bearing end and the first connection end are solid members.

[0011] By setting the inner tube to have a hollow intermediate section and solid ends at both ends, while ensuring the structural strength of the inner tube and meeting the requirements of force transmission, the overall weight of the device is reduced, which is convenient for the operator to use and easy to carry.

[0012] Further, both the sleeve and the inner tube are made of lightweight alloy.

[0013] By using lightweight alloy steel as the manufacturing material of the sleeve and the inner tube, while ensuring the overall structural strength of the device, the overall weight of the device is reduced, which is more convenient.

[0014] Further, the adjusting rod and the through hole are connected by threads.

[0015] By adopting the method of threaded connection for fixation, it can effectively prevent the loosening of the connecting parts due to vibration or external force, improve the stability and reliability of the connection. For the adjusting rod, the threaded connection provides the choice of tiny linear displacement for the stroke adjustment of the adjusting rod, with higher precision. The adjusting rod only needs to be rotated to achieve the stroke adjustment, which is more convenient.

[0016] Furthermore, a holding member is connected to the outer wall of the sleeve along the horizontal direction.

[0017] By arranging a holding member on the outer wall of the sleeve, the construction worker holds the holding member to move the sleeve up and down, which is convenient for the construction worker to operate.

[0018] Furthermore, a plurality of pressure relief holes are formed in the outer wall of the sleeve.

[0019] When using the utility model for construction, the sleeve needs to do work up and down in the vertical direction. There is a certain amount of air between the inner wall of the top of the sleeve and the top of the inner pipe. At the same time, to ensure that they do not shake when stressed, the inner wall of the sleeve fits with the outer wall of the inner pipe, resulting in the air between the sleeve and the inner pipe being unable to be discharged, affecting the relative sliding between the sleeve and the inner pipe. By providing pressure relief holes, when the sleeve and the inner pipe are operating, the gas between the two can be normally discharged, avoiding interference with the up and down work of the sleeve.

[0020] Based on the copper-clad steel grounding electrode construction special hammer described above, the utility model also provides a copper-clad steel grounding electrode construction device, which includes: a copper-clad steel grounding electrode construction special hammer and a connecting member. The connecting member includes a connecting rod with an external thread and a connector. The copper-clad steel grounding electrode construction special hammer, the connecting rod, the connector and the grounding electrode are connected in sequence.

[0021] Adopting the method of directly connecting the copper-clad steel grounding electrode with the first connection end avoids the risk of copper layer damage caused by direct percussion. However, the way of the sleeve doing work up and down will still generate a certain impact force on the copper layer. By adding an intermediate connecting member, the connecting rod and the connector can absorb and disperse the impact force transmitted from the top of the inner pipe to a certain extent, reducing the impact force directly acting on the copper layer of the grounding electrode, thereby enhancing the protection of the copper-clad steel grounding electrode. At the same time, for the grounding electrode, adopting the threaded connection method, the stress point is on the thread teeth, with strong bearing capacity while reducing the acting area of the acting force on the copper-clad steel grounding electrode, further improving the protection of the copper layer of the copper-clad steel grounding electrode.

[0022] Furthermore, a gap is left between the upper end face of the grounding electrode connected inside the connector and the lower end face of the connecting rod.

[0023] By leaving a gap between the connecting rod located inside the connector and the two opposite end faces of the grounding electrode facing each other, the connecting rod and the copper-clad steel grounding electrode do not come into direct contact, thus enhancing the protection of the copper layer on the upper end face of the copper-clad steel grounding electrode.

[0024] One or more technical solutions provided by the present utility model have at least the following technical effects or advantages:

[0025] (1) For the special hammer for copper-clad steel grounding electrode construction provided by the present utility model, by moving the sleeve up and down, the top wall of the sleeve does work on the top wall of the inner tube, and the force is transmitted to the copper-clad steel grounding electrode connected to the bottom of the inner tube through the inner tube, so that the surface of the copper-clad steel grounding electrode is not directly hammered, thereby realizing the protection of the copper layer on the surface of the grounding electrode;

[0026] (2) The special hammer for copper-clad steel grounding electrode construction provided by the present utility model has a simple structure and is easy to operate. Compared with the installation method of mechanical drilling, the construction amount is small. During operation, the construction personnel only need one person to hold the sleeve and do work up and down to install the grounding electrode into the ground. Compared with directly using a hammer to strike, the sliding connection method provides a guiding function, making the positioning of the force-bearing component more accurate when the special construction hammer does work;

[0027] (3) For the special hammer for copper-clad steel grounding electrode construction provided by the present utility model, by adding an intermediate connecting piece, the connecting rod and the connector can absorb and disperse the impact force transmitted from the top of the inner tube to a certain extent, reduce the impact force directly acting on the copper layer of the grounding electrode, and thus enhance the protection of the copper-clad steel grounding electrode. At the same time, for the grounding electrode, the threaded connection method is adopted, and the force-bearing point is on the thread teeth. While having a strong bearing capacity, it reduces the acting area of the acting force on the copper-clad steel grounding electrode, further improving the protection of the copper layer of the copper-clad steel grounding electrode. Description of the Drawings

[0028] The drawings described herein are used to provide a further understanding of the embodiments of the present utility model, constitute a part of the present utility model, and do not limit the embodiments of the present utility model;

[0029] Figure 1 is a schematic structural diagram of the special hammer for copper-clad steel grounding electrode construction in the present utility model;

[0030] Figure 2 is in the present utility model Figure 1 is a side cross-sectional view of the special hammer for copper-clad steel grounding electrode construction in

[0031] Figure 3 is a schematic structural diagram after the first connection end, the connector and the grounding electrode are connected in the present utility model;

[0032] Among them, 1 - sleeve, 101 - through hole, 102 - adjusting rod, 2 - inner tube, 201 - first stress end, 202 - first connection end, 203 - intermediate pipe section, 3 - holding member, 4 - disc, 5 - connecting member, 501 - connecting rod, 502 - connector, 6 - pressure relief hole, 7 - copper - clad steel grounding electrode. Detailed implementation manners

[0033] In order to more clearly understand the above - mentioned objects, features and advantages of the present utility model, the present utility model will be further described in detail below in conjunction with the drawings and specific implementation manners. It should be noted that, without conflict, the embodiments of the present utility model and the features in the embodiments can be combined with each other.

[0034] In the following description, many specific details are set forth in order to fully understand the present utility model. However, the present utility model can also be implemented in other ways different from those described within the scope hereof. Therefore, the protection scope of the present utility model is not limited by the specific embodiments disclosed below.

[0035] Embodiment 1

[0036] Please refer to Figure 1 - Figure 2, a special hammer for the construction of a copper-clad steel grounding electrode provided by an embodiment of the present utility model includes a sleeve 1 and an inner tube 2 slidably connected to the sleeve 1. The diameter of the inner tube 2 matches the inner diameter of the sleeve 1 and the inner tube 2 is placed inside the sleeve 1. The materials of the sleeve 1 and the inner tube 2 are light alloys, and the light alloy can be stainless steel, aluminum alloy or titanium alloy, so that the overall weight of the device is lighter while ensuring the structural strength of the device, which is convenient for carrying and manual operation. The inner tube 2 includes a first force-receiving end 201 facing the top of the sleeve and a first connection end 202 for connecting the grounding electrode. During use, the construction worker holds the sleeve and moves it up and down relative to the inner tube. When moving downwards, force is applied to make the inner wall of the top of the sleeve 1 impact and do work on the top of the inner tube 2, and the force is transmitted to the copper-clad steel grounding electrode 7 through the inner tube 2. Among them, the copper-clad steel grounding electrode 7 can be directly connected to the first connection section 202 or can be connected to the first connection end through an additional intermediate connector, so that it enters the formation after being stressed to complete the installation. Since the surface of the copper-clad steel grounding electrode 7 is not directly hammered, the protection of the copper layer on the surface of the grounding electrode is realized. As a preferred solution, a holding member 3 is connected to the outer wall of the sleeve 1 along the horizontal direction, and the construction worker holds the holding member to move the sleeve up and down, which is convenient for applying force. A number of pressure relief holes 6 are opened on the outer wall of the sleeve 1. The sleeve does work up and down in the vertical direction. There is a certain amount of air between the inner wall of the top of the sleeve and the top of the inner tube. At the same time, to ensure that they do not shake when stressed, the inner wall of the sleeve fits with the outer wall of the inner tube, resulting in the air between the sleeve and the inner tube not being able to be exhausted, affecting the relative sliding between the sleeve and the inner tube. By setting the pressure relief holes, the gas between the two can be normally exhausted during the operation of the sleeve and the inner tube, avoiding interference with the up and down work of the sleeve. The inner tube 2 further includes an intermediate tube section 203. The first force-receiving end 201, the intermediate tube section 203 and the first connection end 202 are sequentially connected from the top of the sleeve 1 to the bottom along the axial direction of the sleeve 1. The intermediate tube section 203 is a hollow member, and the first force-receiving end 201 and the first connection end 202 are both solid members. The inner tube 2 is set to have a structure with a hollow middle section and solid ends at both ends, which reduces the overall weight of the device while ensuring the structural strength of the inner tube and meeting the requirements of force transmission, facilitating the use of the operator and being convenient for handling.

[0037] A through hole 101 is axially formed in the top of the sleeve 1 along the axis of the sleeve 1, and an adjusting rod 102 capable of axially moving along the through hole 101 is connected to the through hole 101. The adjusting rod 102 is fixed to the through hole 101 through a limiting member. Among them, the connection between the adjusting rod 102 and the through hole 101 can be a sliding connection based on a slide rail and a slideway. At this time, the limiting member can adopt a limiting form of the cooperation of a plug pin and a pin hole. Through holes are radially formed through both the sleeve 1 and the inner pipe 2, and the limiting is achieved by inserting the plug pin. For the grounding electrode, in different usage environments, the required depth of the grounding electrode inserted into the ground is also different. By arranging the adjusting rod 102 at the top of the sleeve 1, the total stroke that the inner pipe 2 can move in the sleeve 1 is controlled by adjusting the length of the adjusting rod 102 located inside the sleeve, so as to control the depth of the grounding electrode installed in the ground, and reduce the large error caused by using the human eye to observe or drawing lines on the grounding electrode to determine the depth of the grounding electrode inserted into the ground. As a preferred solution, the adjusting rod 102 is threadedly connected to the through hole 101. The threaded connection provides a choice of a small linear displacement for the stroke adjustment of the adjusting rod, with higher precision. The adjusting rod only needs to be rotated to achieve the stroke adjustment, which is more convenient. At the same time, the first connection end 202 and the grounding electrode are also threadedly connected. For the grounding electrode, in the threaded connection mode, the stress point is on the thread teeth, which has a strong bearing capacity while reducing the acting area of the acting force on the copper-clad steel grounding electrode and enhancing the protection of the copper layer of the copper-clad steel grounding electrode.

[0038] As Figure 2 shown, a disc 4 can also be provided at the top end of the adjusting rod 102. When the ground is too hard and it is difficult to insert the grounding electrode into the ground by relying on the manual work of moving the sleeve 1 up and down, a hammer or a mallet and other knocking tools can be borrowed to knock on the disc stress member, so that the adjusting rod 102 does work on the inner pipe 2, and after being transmitted to the grounding electrode, it breaks through the ground surface and enters the ground.

[0039] Embodiment 2

[0040] Please refer to Figure 3, on the basis of Embodiment 1 of the present utility model, based on the above-mentioned special hammer for copper-clad steel grounding electrode construction, a copper-clad steel grounding electrode construction device is further provided, including the special hammer for copper-clad steel grounding electrode construction and a connecting member 5. The connecting member 5 includes a connecting rod 501 with an external thread and a connector 502. Among them, the connector 502 can be an existing grounding electrode connector or a connecting sleeve with an internal thread. The special hammer for copper-clad steel grounding electrode construction, the connecting rod 501, the connector 502 and the grounding electrode are connected in sequence. Among them, the connecting rod can be a double-headed bolt, connecting the first connection end 202 and the connector 502 by means of threaded connection, or a single-headed screw rod, connecting with the first connection end 202 by welding or other means and connecting with the connector 502 by threaded connection at the same time. It can also be connected to the first connection end 202 and the connector 502 by means of bonding or interference fit. The connection method between the grounding electrode and the connector 502 can be interference fit or threaded connection. In the preferred solution, the copper-clad steel grounding electrode 7 is connected to the connector 502 by threaded connection. For the grounding electrode, in the threaded connection method, the stress point is on the thread teeth, which has a strong bearing capacity while reducing the acting area of the acting force on the copper-clad steel grounding electrode, further improving the protection of the copper layer of the copper-clad steel grounding electrode. A gap is left between the upper end face of the grounding electrode connected inside the connector 502 and the lower end face of the connecting rod 501. By leaving a gap between the two end faces of the connecting rod and the grounding electrode facing each other inside the connector, the connecting rod and the copper-clad steel grounding electrode do not directly contact, enhancing the protection of the copper layer on the upper end face of the copper-clad steel grounding electrode.

[0041] As a preferred solution, the inner wall of the sleeve 1 is provided with a chute, and the outer wall of the inner tube 2 is provided with a slider matching the chute. The slider can slide along the chute, thereby driving the inner tube 2 to slide relative to the sleeve 1. When the sleeve 1 and the inner tube 2 are in interference fit, the inner wall of the sleeve 1 and the outer wall of the inner tube 2 are closely attached, with a large frictional force. Part of the work done by the construction workers is used to overcome the frictional force, reducing the construction efficiency. When the sleeve 1 and the inner tube 2 are in clearance fit, there is a gap between the inner wall of the sleeve 1 and the outer wall of the inner tube 2. When the construction workers operate, there will be a certain amount of shaking between the sleeve 1 and the inner tube 2, resulting in uneven force on the inner tube, which in turn affects the effect of the hammer. By setting the slide rail and the slider to indirectly connect the sleeve 1 and the inner tube 2 for sliding connection, while increasing the stability of the device during operation, it also significantly reduces the energy loss caused by interference fit.

[0042] Although the preferred embodiments of the present utility model have been described, those skilled in the art can make additional changes and modifications to these embodiments once they know the basic creative concepts. Therefore, the appended claims are intended to be interpreted as including the preferred embodiments and all changes and modifications falling within the scope of the present utility model.

[0043] Obviously, those skilled in the art can make various changes and modifications to the present utility model without departing from the spirit and scope of the present utility model. Thus, if these modifications and variations of the present utility model fall within the scope of the claims of the present utility model and their equivalent technologies, the present utility model is also intended to include these modifications and variations.

Claims

1. A special hammer for copper-clad steel grounding electrode construction, characterized in that: include: A sleeve (1) and an inner tube (2) built into the sleeve (1) and matching the inner diameter of the sleeve (1), the inner tube (2) comprising a first force-bearing end (201) facing the top of the sleeve and a first connection end (202) for connecting to a grounding electrode, the sleeve (1) being slidably connected to the inner tube (2).

2. A special hammer for copper-clad steel grounding electrode construction according to claim 1, characterized in that: A through hole (101) is formed at the top of the sleeve (1) along the axial direction of the sleeve (1), and the through hole (101) is connected to an adjustment rod (102) that can move axially along the through hole (101), and the adjustment rod (102) is fixed to the through hole (101) via a stopper.

3. A special hammer for copper-clad steel grounding electrode construction according to claim 1, characterized in that: The inner tube (2) further comprises an intermediate tube section (203); the first force-bearing end (201), the intermediate tube section (203) and the first connecting end (202) are connected in sequence from the top of the sleeve (1) along the axial direction of the sleeve (1) from top to bottom; the intermediate tube section (203) is a hollow part, and the first force-bearing end (201) and the first connecting end (202) are both solid parts.

4. A special hammer for copper-clad steel grounding electrode construction according to claim 1, characterized in that: The sleeve (1) and the inner tube (2) are both made of light alloy.

5. A special hammer for copper-clad steel grounding electrode construction according to claim 2, characterized in that: The adjusting rod (102) is connected to the through hole (101) by means of threads.

6. A special hammer for copper-clad steel grounding electrode construction according to claim 1, characterized in that: The outer wall of the sleeve (1) is connected to a holding piece (3) in the horizontal direction.

7. A special hammer for copper-clad steel grounding electrode construction according to claim 1, characterized in that: The outer wall of the sleeve (1) is provided with a plurality of pressure relief holes (6).

8. A copper-clad steel grounding electrode construction device based on a copper-clad steel grounding electrode construction special hammer according to any one of claims 1 to 7, characterized in that: The device comprises: a special hammer for copper-clad steel grounding electrode construction and a connecting piece (5), wherein the connecting piece (5) comprises a connecting rod (501) provided with external threads and a connector (502), and the special hammer for copper-clad steel grounding electrode construction, the connecting rod (501), the connector (502) and the grounding electrode are connected in sequence.

9. A copper-clad steel grounding electrode construction device according to claim 8, characterized in that: A gap is left between the upper end surface of the grounding electrode connected inside the connector (502) and the lower end surface of the connecting rod (501).

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