Embedded copper stranded wire and natural grounding body connection joint

Abstract

The utility model discloses a connector for a pre-embedded copper stranded wire and a natural grounding body, which belongs to the technical field of copper stranded wire laying construction and comprises a connector assembly used for connecting the pre-embedded copper stranded wire and the natural grounding body. The connecting joint assembly comprises galvanized flat steel, a detachable U-shaped clamping plate clamped at one end of the galvanized flat steel, and a copper stranded wire piece welded on the back surface of the detachable U-shaped clamping plate in a hot melting manner; the fastening lower pressing plate and the detachable U-shaped clamping plate are combined together, so that the galvanized flat steel can be stably clamped; the twisted steel is clamped in the groove; a fastening part is arranged on the top face of the detachable U-shaped clamping plate and drives the fastening lower pressing plate to ascend and descend in the detachable U-shaped clamping plate. According to the utility model, a user can adjust the fastening degree through operation, so that the requirement adaptability under different application scenes is stronger, the connection or replacement of galvanized flat steel with different sizes and models can be met, and the practical efficiency is improved.

Description

Technical Field

[0001] The utility model belongs to the technical field of copper stranded wire laying construction, and particularly relates to a connecting joint between a pre-buried copper stranded wire and a natural grounding body. Background Technique

[0002] In the field of electrical engineering, the connection between a pre-buried copper stranded wire and a natural grounding body is one of the important links to ensure the grounding safety of an electrical system. The purpose of this connection is to establish a reliable electrical path so that in the event of an electrical fault, the current can quickly flow into the ground, thus protecting the safety of personnel and equipment. Thermo-welding is a common method to achieve the connection between a pre-buried copper stranded wire and a natural grounding body. Thermo-welding melts the copper stranded wire and the natural grounding body together through the high temperature generated by a chemical reaction. This method can form a permanent metal bond and is suitable for humid or dusty environments.

[0003] Traditional connection methods usually have the following problems or deficiencies: In the existing connection technology, the connection between the pre-buried copper stranded wire and the natural grounding body often lacks an adjustable and detachable mechanism and cannot be adjusted according to the actual situation. This means that in different application scenarios, the connection device may not meet specific requirements, reducing its scope of application and unable to meet the usage needs of different occasions, thus reducing the usage efficiency. Content of the Utility Model

[0004] The purpose of the utility model is to provide a connecting joint between a pre-buried copper stranded wire and a natural grounding body to solve the problems raised in the background technique.

[0005] To achieve the above purpose, the utility model provides the following technical solution: A connecting joint between a pre-buried copper stranded wire and a natural grounding body, comprising:

[0006] A connecting joint assembly for connecting the pre-buried copper stranded wire and the natural grounding body. The connecting joint assembly includes a galvanized flat steel, a detachable U-shaped clamping plate clamped at one end of the galvanized flat steel, and a copper stranded wire piece thermo-welded on the back of the detachable U-shaped clamping plate;

[0007] A fastening lower pressing plate, which is connected to the inside of the detachable U-shaped clamping plate in a lifting manner. When the detachable U-shaped clamping plate is clamped at one end of the galvanized flat steel, the fastening lower pressing plate can descend and press on the top surface of the galvanized flat steel. The fastening lower pressing plate and the detachable U-shaped clamping plate can firmly clamp the galvanized flat steel together;

[0008] Threaded steel bar clamping grooves, symmetrically opened on the bottom surface of the galvanized flat steel for the anastomosis welding of the threaded steel bars of the natural grounding body;

[0009] Wherein, a fastening component is arranged on the top surface of the detachable U-shaped clamping plate, and the fastening component drives the fastening lower pressing plate to move up and down inside the detachable U-shaped clamping plate.

[0010] Preferably, in this solution, an outer wall of one side of the fastening lower pressure plate facing away from the detachable U-shaped clamping plate is fixedly connected with an L-shaped anti-slip rod, and one end of the L-shaped anti-slip rod away from the fastening lower pressure plate is clamped on an outer wall of one side of the galvanized flat steel.

[0011] Preferably, in this solution, when the tightening lower pressing plate is pressed down on the top surface of the galvanized flat steel, the inner wall of the L-shaped anti-slip pull rod also abuts against the top surface of the galvanized flat steel.

[0012] In this solution, preferably, a T-shaped slot is formed at one end of the tightening lower pressing plate close to the L-shaped anti-detachment rod, and a T-shaped clamp is integrally connected to one end of the L-shaped anti-detachment rod facing the tightening lower pressing plate, and the T-shaped clamp fits in the T-shaped slot. This facilitates the removal and installation of the L-shaped anti-detachment rod and improves the connection stability of the L-shaped anti-detachment rod, thereby preventing the L-shaped anti-detachment rod from detaching.

[0013] In this solution, the L-shaped anti-detachment rod is preferably made of elastic plastic. When the detachable U-shaped clamping plate and the galvanized flat steel need to be disassembled and separated, the end of the L-shaped anti-detachment rod away from the fastening lower pressing plate can be easily moved to tilt the end, thereby facilitating the opening of the L-shaped anti-detachment rod clamped on the galvanized flat steel.

[0014] Preferably, in this solution, the fastening component comprises a locking bolt with a thread longitudinally penetrating through the top surface of the detachable U-shaped clamping plate, and a sealing bearing component is embedded in the middle position of the top surface of the fastening lower pressure plate.

[0015] Preferably, the bottom end of the locking bolt has an interference fit with the inner ring of the sealing bearing.

[0016] Preferably, in the present solution, a magnet block is symmetrically embedded in the inner wall of the L-shaped anti-slip pull rod, and the magnet block is magnetically attracted to the surface of the galvanized flat steel.

[0017] Preferably, the copper stranded wire pieces are bound together at one end away from the detachable U-shaped clamping plate by an anti-unraveling strap.

[0018] Preferably, the inner wall of each of the threaded steel bar clamping grooves is integrally provided with an internal thread path, and the internal thread path is in contact with the outer wall of the threaded steel bar of the natural grounding body.

[0019] Compared with the prior art, the technical effects and advantages of the utility model are as follows:

[0020] The connecting joint of the embedded copper stranded wire and the natural grounding body, through the combined use of a detachable U-shaped clamping plate and a fastening lower pressing plate, ensures the stability and reliability of the connection. It realizes the efficient connection between the embedded copper stranded wire and the natural grounding body. The design of the fastening component and the fastening lower pressing plate enables users to adjust the fastening degree through simple operations, which is more adaptable to the requirements in different application scenarios. At the same time, it can meet the connection or replacement of galvanized flat steels of different sizes and models, improving the practical efficiency.

[0021] By using the detachable U-shaped clamping plate to clamp on the galvanized flat steel and cooperating with the downward pressing action of the fastening lower pressing plate, an effective clamping of the galvanized flat steel can be formed. This ensures that the connection between the embedded copper stranded wire and the natural grounding body is more stable and not easily loosened by external forces. Brief Description of the Drawings

[0022] In order to more clearly illustrate the specific embodiments of the present invention or the technical solutions in the prior art, the following will briefly introduce the drawings required to be used in the description of the specific embodiments or the prior art. Obviously, the following drawings are some embodiments of the present invention. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained based on these drawings.

[0023] Figure 1 It is a schematic structural diagram of the present invention;

[0024] Figure 2 It is a schematic structural diagram of the detachable U-shaped clamping plate of the present invention;

[0025] Figure 3 It is a schematic structural diagram of the disassembled state of the fastening lower pressing plate of the present invention;

[0026] Figure 4 It is a schematic installation structure diagram of the magnet block of the present invention;

[0027] Figure 5 It is a schematic structural diagram of the threaded steel bar clamping groove of the present invention.

[0028] Explanation of the Reference Numerals in the Drawings:

[0029] In the figure: 1. Connecting joint assembly; 2. Galvanized flat steel; 3. Detachable U-shaped clamping plate; 4. Copper stranded wire part; 5. Anti-scattered strand binding tape; 6. L-shaped anti-loosening pull rod; 7. Fastening lower pressing plate; 8. Fastening component; 9. Threaded steel bar clamping groove; 10. Locking bolt; 11. Sealing bearing part; 12. T-shaped card slot; 13. Magnet block; 14. T-shaped card head; 15. Internal thread path. Detailed Embodiments

[0030] In the following description, numerous specific details are given to provide a more thorough understanding of the present utility model. However, it is obvious to those skilled in the art that the present utility model can be implemented without one or more of these details. In other examples, in order to avoid confusion with the present utility model, some technical features well known in the art are not described.

[0031] Unless otherwise defined, the directions such as up, down, left, right, front, back, inner, and outer involved in this article are based on the up, down, left, right, front, back, inner, and outer directions in the figures shown in the present utility model. This is hereby explained together.

[0032] This embodiment provides a connection joint between a pre-buried copper stranded wire and a natural grounding body as shown in Figures 1 to 5 Figure, including: a connection joint assembly 1, a fastening lower pressing plate 7, and a threaded steel bar clamping groove 9.

[0033] In this embodiment, the connection joint assembly 1 is used for connecting the pre-buried copper stranded wire and the natural grounding body. The connection joint assembly 1 includes a galvanized flat steel 2, a detachable U-shaped clamping plate 3 clamped at one end of the galvanized flat steel 2, and a copper stranded wire part 4 thermally welded to the back of the detachable U-shaped clamping plate 3; the galvanized flat steel 2 provides the main physical support and connection interface for contacting the natural grounding body. The threaded steel bar clamping groove 9 symmetrically opened on its bottom surface is used for butt welding with the threaded steel bar of the natural grounding body, enhancing the mechanical strength of the connection. The design of the detachable U-shaped clamping plate 3 allows for quick installation and disassembly, facilitating maintenance. It is clamped at one end of the galvanized flat steel 2, and the electrical connection with the pre-buried copper stranded wire is achieved through the copper stranded wire part 4 fixed by thermal welding on the back. The copper stranded wire part 4 is the key part of the electrical connection and is fixed on the detachable U-shaped clamping plate 3 by thermal welding, ensuring good electrical conductivity. One end of it far from the U-shaped clamping plate 3 is tied with an anti-scattering binding tape 5 to avoid the copper stranded wire from scattering and ensure the reliability of the connection.

[0034] In this embodiment, the fastening lower pressing plate 7 is vertically connected inside the detachable U-shaped clamping plate 3. When the detachable U-shaped clamping plate 3 is clamped at one end of the galvanized flat steel 2, the fastening lower pressing plate 7 can descend and press on the top surface of the galvanized flat steel 2. The fastening lower pressing plate 7 and the detachable U-shaped clamping plate 3 can firmly clamp the galvanized flat steel 2 together; the fastening lower pressing plate 7 can move up and down inside the detachable U-shaped clamping plate 3. When pressed down, it can contact the top surface of the galvanized flat steel 2 to form a firm clamp. This ensures that the entire device will not loosen due to changes in the external environment during use.

[0035] In this embodiment, the threaded steel bar clamping grooves 9 are symmetrically opened on the bottom surface of the galvanized flat steel 2 for butt welding with the threaded steel bars of the natural grounding body.

[0036] In this embodiment, a fastening component 8 is provided on the top surface of the detachable U-shaped clamping plate 3 , and the fastening component 8 drives the fastening lower pressing plate 7 to move up and down inside the detachable U-shaped clamping plate 3 .

[0037] In this embodiment, an outer wall of the fastening lower pressure plate 7 facing away from the detachable U-shaped clamping plate 3 is fixedly connected with an L-shaped anti-slip pull rod 6, and one end of the L-shaped anti-slip pull rod 6 away from the fastening lower pressure plate 7 is clamped on an outer wall of one side of the galvanized flat steel 2.

[0038] In this embodiment, when the tightening lower pressing plate 7 is pressed down on the top surface of the galvanized flat steel 2 , the inner wall of the L-shaped anti-slip pull rod 6 also abuts against the top surface of the galvanized flat steel 2 .

[0039] In this embodiment, a T-shaped card slot 12 is provided at one end of the tightening lower pressing plate 7 close to the L-shaped anti-detachment pull rod 6, and a T-shaped card head 14 is integrally connected to the end of the L-shaped anti-detachment pull rod 6 facing the tightening lower pressing plate 7, and the T-shaped card head 14 is installed in the T-shaped card slot 12. It is convenient to disassemble and install the L-shaped anti-detachment pull rod 6 and improve the connection stability of the L-shaped anti-detachment pull rod 6 to prevent the L-shaped anti-detachment pull rod 6 from detaching. The T-shaped card slot 12 matches the T-shaped card head 14 of the L-shaped anti-detachment pull rod 6, making the installation of the L-shaped anti-detachment pull rod 6 more stable.

[0040] In this embodiment, the L-shaped anti-detachment rod 6 is made of elastic plastic, preferably TPU material, thermoplastic polyurethane, which has excellent wear resistance, elasticity and tear resistance. When the detachable U-shaped clamping plate 3 and the galvanized flat steel 2 need to be disassembled and separated, it is convenient to pry one end of the L-shaped anti-detachment rod 6 away from the fastening lower pressing plate 7 so that this end is tilted, thereby facilitating the L-shaped anti-detachment rod 6 clamped on the galvanized flat steel 2 to be pried apart.

[0041] In this embodiment, the fastening component 8 includes a locking bolt 10 with a thread longitudinally penetrating the top surface of the detachable U-shaped clamping plate 3, and a sealing bearing component 11 is embedded in the middle position of the top surface of the fastening lower pressing plate 7. The locking bolt 10 and the sealing bearing component 11 work together to control the lifting and lowering of the fastening lower pressing plate 7. The locking bolt 10 realizes the up and down movement of the fastening lower pressing plate 7 by rotating, and the sealing bearing component 11 ensures the smoothness during the movement.

[0042] In this embodiment, the bottom end of the locking bolt 10 is interference fit with the inner ring of the sealing bearing 11. The position of the tightening lower pressing plate 7 is adjusted by rotating the locking bolt 10, thereby controlling the tightening degree of the entire device.

[0043] In this embodiment, the inner wall of the L-shaped anti-detachment pull rod 6 is symmetrically embedded with a magnet block 13, and the magnet block 13 is magnetically attracted to the surface of the galvanized flat steel 2. The magnet block 13 is embedded in the inner wall of the L-shaped anti-detachment pull rod 6 and is magnetically attracted to the surface of the galvanized flat steel 2, thereby enhancing the fixing effect of the L-shaped anti-detachment pull rod 6 and preventing it from falling off during operation.

[0044] In this embodiment, one end of the copper stranded wire piece 4 away from the detachable U-shaped clamping plate 3 is tied together by an anti-scattering strap 5.

[0045] In this embodiment, an internal thread groove 15 is integrally provided on the inner wall of each threaded steel bar clamping groove 9, and the internal thread groove 15 is in fitting contact with the outer wall of the threaded steel bar of the natural grounding body. The threaded steel bar clamping grooves 9 are symmetrically opened on the bottom surface of the galvanized flat steel 2 for fitting welding with the threaded steel bars of the natural grounding body. The internal thread grooves 15 provided on the inner wall of the groove are in fitting contact with the outer wall of the threaded steel bar, enhancing the connection tightness and contact area, improving the connection stability and preventing detachment.

[0046] Working principle:

[0047] For this buried copper stranded wire and natural grounding body connection joint, place the galvanized flat steel 2 at the predetermined installation position, ensure that the threaded steel bar clamping grooves 9 on its bottom surface are aligned with the threaded steel bars of the natural grounding body, and use appropriate tools such as a welding machine to weld the galvanized flat steel 2 and the threaded steel bars of the natural grounding body through the internal thread grooves 15 in the threaded steel bar clamping grooves 9 to ensure the firmness of the connection. Slip the detachable U-shaped clamping plate 3 onto one end of the galvanized flat steel 2, ensure that the U-shaped clamping plate 3 is aligned with the galvanized flat steel 2, check whether the U-shaped clamping plate 3 is correctly clamped on the galvanized flat steel 2, and confirm that its back is ready for installing the copper stranded wire piece 4.

[0048] Fix one end of the copper stranded wire piece 4 to the back of the detachable U-shaped clamping plate 3 by hot melting welding to ensure a good electrical connection is formed between the copper stranded wire piece 4 and the U-shaped clamping plate 3. Tie the end of the copper stranded wire piece 4 away from the U-shaped clamping plate 3 with an anti-scattering strap 5 to prevent the copper stranded wire from spreading. Check whether the strap is tightened to ensure that the copper stranded wire piece 4 will not spread due to external factors. Assemble the fastening lower pressing plate 7 into the detachable U-shaped clamping plate 3 to make it in a liftable state, adjust the position of the fastening lower pressing plate 7 so that it can be pressed down to the top surface of the galvanized flat steel 2. Fix one end of the L-shaped anti-detachment pull rod 6 to the side of the fastening lower pressing plate 7 facing away from the U-shaped clamping plate 3, and snap the other end of the L-shaped anti-detachment pull rod 6 onto the outer wall of one side of the galvanized flat steel 2 to ensure that its inner wall is in contact with the top surface of the galvanized flat steel 2. Adjust the position of the fastening component 8 by rotating the locking bolt 10 to press the fastening lower pressing plate 7 to an appropriate position. When the fastening lower pressing plate 7 is pressed down, the sealing bearing part 11 embedded in the middle position of its top surface will form an interference fit with the bottom end smooth rod of the locking bolt 10 to ensure the smooth movement of the fastening lower pressing plate 7.

[0049] Insert the T-shaped clamp 14 integrally connected to one end of the L-shaped anti-detachment rod 6 toward the fastening lower pressure plate 7 into the T-shaped slot 12 on the fastening lower pressure plate 7, and ensure that the T-shaped clamp 14 is installed in a matching manner with the T-shaped slot 12, so as to facilitate the disassembly and installation of the L-shaped anti-detachment rod 6 and improve its connection stability. The magnet block 13 embedded in the inner wall of the L-shaped anti-detachment rod 6 is magnetically attracted to the surface of the galvanized flat steel 2 to enhance the fixing effect of the L-shaped anti-detachment rod 6. When disassembly is required, the L-shaped anti-detachment rod 6 can be pried away from one end of the fastening lower pressure plate 7 so that this end is tilted, thereby facilitating the L-shaped anti-detachment rod 6 connected to the galvanized flat steel 2 to be pried open.

[0050] It should be noted that, in this article, relational terms such as one and two are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions. The sentence "includes an element defined by ... does not exclude the existence of other identical elements in the process, method, article or device including the element".

[0051] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A connection joint between a pre-buried copper stranded wire and a natural grounding body, characterized in that, Comprising: A connecting joint assembly (1) for connecting a pre-buried copper stranded wire to a natural grounding body. The connecting joint assembly (1) includes a galvanized flat steel (2), a detachable U-shaped clamping plate (3) clamped at one end of the galvanized flat steel (2), and a copper stranded wire piece (4) thermally welded to the back of the detachable U-shaped clamping plate (3); A fastening lower pressing plate (7) is vertically connected inside the detachable U-shaped clamping plate (3). When the detachable U-shaped clamping plate (3) is clamped at one end of the galvanized flat steel (2), the fastening lower pressing plate (7) can descend and press on the top surface of the galvanized flat steel (2). The fastening lower pressing plate (7) and the detachable U-shaped clamping plate (3) can firmly clamp the galvanized flat steel (2) together; Threaded steel bar clamping grooves (9) are symmetrically opened on the bottom surface of the galvanized flat steel (2) for butt welding with the threaded steel bars of the natural grounding body; Wherein, a fastening component (8) is arranged on the top surface of the detachable U-shaped clamping plate (3), and the fastening component (8) drives the fastening lower pressing plate (7) to move up and down inside the detachable U-shaped clamping plate (3).

2. The connection joint of the embedded copper stranded wire and the natural grounding body according to claim 1, characterized in that: One side outer wall of the fastening lower pressing plate (7) facing away from the detachable U-shaped clamping plate (3) is fixedly connected with an L-shaped anti-disengagement pull rod (6), and one end of the L-shaped anti-disengagement pull rod (6) far from the fastening lower pressing plate (7) is clamped on one side outer wall of the galvanized flat steel (2).

3. The connection joint between the embedded copper stranded wire and the natural grounding body according to claim 2, characterized in that: When the fastening lower pressing plate (7) presses on the top surface of the galvanized flat steel (2), the inner wall of the L-shaped anti-disengagement pull rod (6) also abuts against the top surface of the galvanized flat steel (2).

4. A connection joint between an embedded copper stranded wire and a natural grounding body according to claim 3, characterized in that: A T-shaped card slot (12) is opened at one end of the fastening lower pressing plate (7) close to the L-shaped anti-disengagement pull rod (6), and a T-shaped card head (14) is integrally connected to one end of the L-shaped anti-disengagement pull rod (6) facing the fastening lower pressing plate (7). The T-shaped card head (14) is fitted and installed in the T-shaped card slot (12).

5. The connection joint of the embedded copper stranded wire and the natural grounding body according to claim 4, characterized in that: The material of the L-shaped anti-disengagement pull rod (6) is elastic plastic.

6. The connecting joint of the embedded copper stranded wire and the natural grounding body according to claim 5, wherein: The fastening component (8) includes a locking bolt (10) longitudinally threaded through the top surface of the detachable U-shaped clamping plate (3), and a sealed bearing part (11) is embedded in the middle position of the top surface of the fastening lower pressing plate (7).

7. A connection joint between a pre-embedded copper stranded wire and a natural grounding body according to claim 6, characterized in that: The bottom end smooth rod of the locking bolt (10) is in interference fit with the inner ring of the sealed bearing part (11).

8. The connection joint between the embedded copper stranded wire and the natural grounding body according to claim 7, characterized in that: Magnet blocks (13) are symmetrically embedded in the inner wall of the L-shaped anti-disengagement pull rod (6), and the magnet blocks (13) are magnetically attracted to the surface of the galvanized flat steel (2).

9. The connecting joint of the embedded copper stranded wire and the natural grounding body according to claim 8, characterized in that: One end of the copper stranded wire piece (4) far from the detachable U-shaped clamping plate (3) is tied together by an anti-scattering strap (5).

10. A connection joint between a pre-embedded copper stranded wire and a natural grounding electrode according to claim 9, characterized in that: Inner thread grooves (15) are integrally arranged on the inner wall of each threaded steel bar clamping groove (9), and the inner thread grooves (15) are in contact with the outer wall of the threaded steel bars of the natural grounding body in an engaging manner.

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