CN209592335U - A multi-point centralized grounding device and a multi-point centralized grounding system - Google Patents

Abstract

The utility model provides a multi-point centralized grounding device and a multi-point centralized grounding system, which relate to the technical field of vehicle-mounted electric appliances. The grounding part is used to be set on the grounding surface, and there is a ground hole on the grounding part, the grounding body and the grounding part are detachably connected, and the bottom of the grounding body extends into the grounding hole, and multiple wiring The terminals are detachably connected to both sides of the ground body and are in electrical contact with the ground body. Compared with the prior art, the multi-point centralized grounding device provided by the utility model can improve the precision of electrical control, has good grounding effect, high safety, simple grounding circuit, high assembly efficiency and can reduce ground consumption electrical energy.

Description

A multi-point centralized grounding device and a multi-point centralized grounding system

technical field

The utility model relates to the technical field of grounding of vehicle electrical appliances, in particular to a multi-point centralized grounding device and a multi-point centralized grounding system.

Background technique

The traditional grounding method of electrical appliances on a car is directly welded to the body frame with bolts or studs, which has low control accuracy, poor grounding effect, and low safety. While electrical appliances are used in complex environments and require high-precision control, grounding safety and protection also put forward higher technical requirements.

In addition, most of the existing grounding methods are single-wire grounding. For multiple electrical appliances on the vehicle body, multiple grounding wires need to be installed and repeatedly connected or welded to the body frame, making the grounding circuit very complicated, and the process of assembling the vehicle is complicated. , reducing the assembly efficiency. In addition, multiple lines are connected, so that the power consumption to the ground is relatively large.

In view of this, it is particularly important to design and manufacture a multi-point centralized grounding device that can improve the accuracy of electrical control, has good grounding effect, high safety, simple grounding lines, high assembly efficiency and can reduce power consumption to the ground. important.

Utility model content

The purpose of the utility model is to provide a multi-point centralized grounding device, which can improve the accuracy of electrical control, has good grounding effect, high safety, simple grounding circuit, high assembly efficiency and can reduce the power consumption to the ground.

Another purpose of the utility model is to provide a multi-point centralized grounding device, which can improve the accuracy of electrical control, has good grounding effect, high safety, simple grounding circuit, high assembly efficiency and can reduce the power consumption to the ground.

The utility model is realized by adopting the following technical solutions.

A multi-point centralized grounding device, comprising a grounding main body, a grounding embracing piece and a plurality of connection terminals, the grounding embracing piece is used to be arranged on a grounding surface, and a grounding opening is opened on the grounding embracing piece, and the grounding The main body is detachably connected to the ground iron surround, and the bottom of the ground iron body extends into the ground iron opening for electrical contact with the ground surface. Multiple terminals are detachably connected to both sides of the ground iron body and connected to the ground iron main body electrical contact.

Further, the main body of the ground includes a terminal connection part and an insertion part which are integrally arranged. The insertion part is arranged at the bottom of the terminal connection part and extends into the ground opening. The shape of the insertion part matches the shape of the ground opening. .

Further, the top of the main body of the ground is provided with a top support plate, and the top support plate is provided with a first bolt, and a threaded hole matched with the first bolt is provided on the ground iron ring, and the first bolts pass through the top support plate in turn and the main body of the ground iron and extend into the threaded hole, so that the support plate at the top of the first bolt, the main body of the ground iron and the surrounding part of the ground iron are connected as a whole.

Further, the top support plate is provided with a positioning protrusion on the side close to the ground main body, and a positioning groove is opened on the top of the ground main body, and the positioning protrusion matches the positioning groove.

Further, support brackets are provided on both sides of the main body of the ground, the support brackets are detachably connected to the top support plate and have a plurality of supports, and the plurality of supports correspond to the plurality of connection terminals one by one. It is held at the incoming line end of the corresponding terminal block, and is used to limit the incoming line end of the terminal block.

Further, the middle part of the support bracket is spaced apart from the top support plate and provided with an adjustment hole, and a second bolt is arranged in the adjustment hole, and the second bolt passes through the middle part of the support bracket and the top support plate in turn and is arranged on the top support The adjustment nut on the plate is connected to adjust the distance between the middle part of the support bracket and the top support plate.

Further, the multi-point centralized grounding device also includes a first dust-proof cover and a second dust-proof cover, the ring of the second dust-proof cover is set outside the grounding ring, and the first dust-proof cover is set on the second dust-proof cover And an accommodating inner cavity is formed, and the grounding main body, the grounding embracing piece and a plurality of connection terminals are all accommodated in the accommodating inner cavity.

Further, a plurality of connection ports are opened between the first dustproof cover and the second dustproof cover, and the plurality of connection ports correspond to the plurality of connection terminals one by one.

Further, the edge of the first dust-proof cover is provided with a first stepped sealing edge, the edge of the second dust-proof cover is provided with a second stepped sealing edge, and the first stepped sealing edge cooperates with the second stepped sealing edge.

A multi-point centralized grounding system includes multiple grounding wires, fixed grounding pipes and a multi-point centralized grounding device. It is set on the grounding surface, and the grounding iron ring is provided with a grounding hole, the grounding body is detachably connected with the grounding ringing part, and the bottom of the grounding body extends into the grounding hole, which is used to electrically connect the grounding surface Contacting, a plurality of connecting terminals are detachably connected to both sides of the grounding body and are in electrical contact with the grounding body. A plurality of grounding wires are connected to the plurality of connection terminals in one-to-one correspondence, the fixed grounding pipe has a grounding surface, and the grounding ring is arranged on the grounding surface.

The utility model has the following beneficial effects:

The utility model provides a multi-point centralized grounding device. The grounding iron embracing part is arranged on the grounding surface. A plurality of connecting terminals are detachably connected to both sides of the grounding main body and are in electrical contact with the grounding main body, thereby realizing the electrical connection between the connecting terminals and the grounding surface. In actual use, it can be connected to the ground terminals of multiple electrical appliances through multiple grounding harnesses, and the multiple grounding harnesses are respectively connected to multiple terminals, and the terminals are in electrical contact with the main body of the ground, and the main body of the ground is electrically connected to the ground surface. Contact, so as to realize the safe grounding of multiple electrical appliances. Through multiple terminals, the accuracy of electrical grounding can be improved. At the same time, grounding through the same grounding main body can greatly reduce the energy consumption to the ground. Compared with the prior art, the multi-point centralized grounding device provided by the utility model can improve the precision of electrical control, has good grounding effect, high safety, simple grounding circuit, high assembly efficiency and can reduce ground consumption electrical energy.

Description of drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the following drawings will be briefly introduced in the embodiments. It should be understood that the following drawings only show some embodiments of the present invention. Therefore, it should not be regarded as a limitation on the scope. For those skilled in the art, other related drawings can also be obtained according to these drawings without creative work.

Fig. 1 is a structural schematic diagram of the first viewing angle of the multi-point centralized grounding device provided by the first embodiment of the utility model;

Fig. 2 is a cross-sectional view of the multi-point centralized grounding device provided by the first embodiment of the utility model;

Fig. 3 is a structural schematic diagram of the second viewing angle of the multi-point centralized grounding device provided by the first embodiment of the present invention;

Fig. 4 is a schematic diagram of the overall decomposition structure of the multi-point centralized grounding device provided by the first embodiment of the present invention;

Fig. 5 is a partial exploded structural diagram of the multi-point centralized grounding device provided by the first embodiment of the utility model;

Fig. 6 is a schematic diagram of an overall exploded structure of the multi-point centralized grounding device provided by the second embodiment of the present invention;

Fig. 7 is a schematic structural view of the multi-point centralized grounding device provided for the second embodiment of the present invention;

Fig. 8 is a cross-sectional view of the multi-point centralized grounding device provided for the second embodiment of the present invention;

Fig. 9 is a partially enlarged schematic diagram of IX in Fig. 8;

Fig. 10 is a partially enlarged schematic diagram of X in Fig. 8;

Fig. 11 is a schematic structural view of the second dustproof cover in Fig. 6;

Fig. 12 is a schematic structural diagram of the multi-point centralized grounding system provided by the third embodiment of the present invention.

Icons: 100-multi-point centralized grounding device; 110-grounding main body; 111-terminal connection part; 113-socket part; 115-positioning groove; Terminal; 160-top support plate; 161-first bolt; 163-positioning raised strip; 170-support bracket; 171-second bolt; Dust cover; 181-wiring port; 183-first step sealing edge; 190-second dust cover; 191-relief opening; 193-second step sealing edge; -Multi-point centralized grounding system; 210-grounding wire; 230-fixed grounding pipe.

Detailed ways

In order to make the purpose, technical solutions and advantages of the embodiments of the utility model more clear, the technical solutions in the embodiments of the utility model will be clearly and completely described below in conjunction with the accompanying drawings in the embodiments of the utility model. Obviously, the described The embodiments are some embodiments of the present utility model, but not all embodiments. The components of the embodiments of the invention generally described and illustrated in the figures herein may be arranged and designed in a variety of different configurations.

Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but merely represents selected embodiments of the present invention. Based on the embodiments of the present utility model, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the scope of protection of the present utility model.

It should be noted that like numerals and letters denote similar items in the following figures, therefore, once an item is defined in one figure, it does not require further definition and explanation in subsequent figures.

In the description of the present utility model, it should be noted that the orientations or positional relationships indicated by the terms "center", "upper", "vertical", "horizontal", "inner" and "outer" are based on the drawings. The orientation or positional relationship shown, or the orientation or positional relationship that the utility model product is usually placed in use, is only for the convenience of describing the utility model and simplifying the description, rather than indicating or implying that the referred device or element must have a specific Orientation, construction and operation in a specific orientation, and therefore should not be construed as limiting the utility model. In addition, the terms "first", "second", etc. are only used for distinguishing descriptions, and should not be construed as indicating or implying relative importance.

In the description of the present utility model, it should also be noted that, unless otherwise clearly stipulated and limited, the terms "setting", "connecting", "installing" and "connecting" should be understood in a broad sense, for example, it can be a fixed connection , can also be detachably connected, or integrally connected; can be mechanically connected, can also be electrically connected; can be directly connected, can also be indirectly connected through an intermediary, and can be internal communication between two components. Those of ordinary skill in the art can understand the specific meanings of the above terms in the present utility model in specific situations.

Below in conjunction with the accompanying drawings, some embodiments of the present utility model will be described in detail. In the case of no conflict, the features in the following embodiments can be combined with each other.

first embodiment

1 to 5, this embodiment provides a multi-point centralized grounding device 100, including a grounding main body 110, a grounding embracing piece 130 and a plurality of terminals 150, and the grounding embracing piece 130 is used to set the grounding On the surface, a ground opening 131 is provided on the ground embracing part 130, the ground main body 110 is detachably connected to the ground embracing part 130, and the bottom of the ground main body 110 extends into the ground opening 131 for connecting with The ground surface is in electrical contact, and a plurality of connection terminals 150 are detachably connected to two sides of the ground main body 110 and are in electrical contact with the ground main body 110 .

The grounding protection of the metal casing of high-voltage electrical appliances is on the one hand for safety protection, and on the other hand is to shield external interference; the fixed grounding parts must be made of materials with good electrical conductivity. In this embodiment, the grounding embracing piece 130 is arranged on a fixed grounding pipe 230 and is electrically connected to the fixed grounding pipe 230. The upper portion has a grounded surface. Specifically, the grounding embracing piece 130 is welded and installed on the fixed grounding pipe 230. Of course, the grounding embracing piece 130 can also be detachably arranged on the fixed grounding pipe 230 through bolts and other connecting parts. The fixing methods for the electrical connection between the component 130 and the fixed grounding pipe 230 are all within the protection scope of the present invention.

In order to facilitate welding, the grounding embracing piece 130 is made of the same material as the fixed grounding pipe 230. In this embodiment, both the grounding embracing piece 130 and the fixed grounding pipe 230 are made of steel, which facilitates the welding of the grounding embracing piece 130 on the fixed grounding pipe. 230 on. The grounding main body 110 is the main part of the multi-point centralized grounding of electrical appliances. Due to the choice of materials with excellent conductivity and as large a contact surface as possible to meet the fast and smooth conductive channels, such as: silver, copper, aluminum, iron and other materials, in This is not specifically limited.

The ground main body 110 includes a terminal connecting portion 111 and an insertion portion 113 which are integrally provided. The insertion portion 113 is arranged at the bottom of the terminal connection portion 111 and extends into the ground opening 131. The shape of the insertion portion is consistent with the ground opening 131. shape matches. Specifically, the terminal connecting portion 111 is in the shape of a rectangle, the insertion portion 113 is in the shape of a waist cylinder, and the major diameter of the insertion portion 113 is smaller than the major diameter of the terminal connecting portion 111 . The ground hole 131 is a waist-shaped hole and cooperates with the insertion portion 113 , so that the insertion portion 113 can be smoothly inserted into the ground hole 131 and contact the ground surface.

In this embodiment, there are four connection terminals 150, and the four connection terminals 150 are arranged on opposite side walls of the terminal connection part 111 in pairs. Through holes, the two terminals 150 on the same side wall of the terminal connection part 111 have opposite wire entry directions, and the four connection terminals 150 are connected to the terminal connection part 111 by two positioning bolts, and each positioning bolt penetrates the terminal connection part 111 And fix the two connection terminals 150 . Of course, the number of connection terminals 150 here can also be 6 or 8, etc. Correspondingly, the size of the terminal connecting portion 111 is adjusted accordingly, and its specific structure will not be described here.

The top of the grounding body 110 is provided with a top support plate 160, and the top support plate 160 is provided with a first bolt 161, and the grounding ring 130 is provided with a threaded hole matched with the first bolt 161, and the first bolts 161 are threaded in turn. Pass the top support plate 160 and the ground main body 110 and extend into the threaded hole, so that the first bolt 161 connects the top support plate 160 , the ground main body 110 and the ground embracing member 130 as a whole. Specifically, two ends of the top support plate 160 are respectively provided with first bolts 161 , and the top support plate 160 , the ground main body 110 and the ground embracing member 130 are connected as a whole through the two first bolts 161 .

In this embodiment, the first bolt 161 is a countersunk head bolt, so that the upper surface of the top support plate 160 can be flush. The top support plate 160 is provided with a positioning protrusion 163 on a side close to the grounding main body 110 , and the top of the grounding main body 110 is provided with a positioning groove 115 , and the positioning protrusion 163 matches with the positioning groove 115 . By providing the positioning protrusions 163 and the positioning grooves 115, the top support plate 160 and the grounding main body 110 can be positioned with each other before installing the first bolt 161 during installation, which is very convenient. In addition, the positioning protrusions 163 of the top support plate 160 fix the grounding body 110 with good conductivity in the middle, and the raised parts not only reduce the weight of the product, but also increase the strength of the support and the reliability of bolt fixing.

In this embodiment, support brackets 170 are provided on both sides of the grounding main body 110. The support brackets 170 are detachably connected to the top support plate 160 and have a plurality of brackets. There is a one-to-one correspondence, and the supporting piece is held against the incoming wire end of the corresponding connecting terminal 150 for limiting the incoming wire end of the connecting terminal 150 . Specifically, the support bracket 170 is in the shape of a few characters, and each support bracket 170 is provided with two brackets, and the two brackets are respectively arranged at both ends of the support bracket 170, so that the two adjacent terminals 150 can be connected to each other. Carry out limit.

The middle part of the support bracket 170 is spaced apart from the top support plate 160 and provided with an adjustment hole, and a second bolt 171 is arranged in the adjustment hole, and the second bolt 171 passes through the middle part of the support bracket 170 and the top support plate 160 in turn and is connected with the set The adjustment nut 173 on the top support plate 160 is connected for adjusting the distance between the middle part of the support bracket 170 and the top support plate 160 . Specifically, a large-size washer is provided between the adjustment nut 173 and the top support plate 160, and a bracket washer 175 is provided in the middle of the support bracket 170, and the bracket washer 175 is arranged between the second bolt 171 and the support bracket. Between the middle surfaces of the frame 170 , the function of protecting the supporting bracket 170 and strengthening the supporting rigidity of the supporting bracket 170 can be played.

In actual installation, put the 210 bundles of grounding wires into the grounding terminal. After the 210 bundles of grounding wires are installed, there will be gravity and bending stress between the 210 bundles of grounding wires and the grounding terminal; the terminals may loosen under long-term action This affects the contact area between the terminal and the two sides of the upper main body in the length direction. Therefore, it is necessary to support the handle of the grounding terminal close to the grounding wire 210 bundle. Support brackets 170 are designed on the left and right sides. There are grooves at both ends of the length direction of 110 (that is, between the left and right terminals) to connect to the bracket gasket 175 in the middle of the several-shaped support bracket 170 to strengthen the support rigidity of the support bracket 170, and can slide up and down to meet different requirements. The supporting effect of the size of the ground terminal, specifically, when it needs to be adjusted, the distance between the bracket and the top support plate 160 is adjusted by turning the adjusting nut 173, and then the position of the supporting piece is adjusted to adapt to different sizes of terminals 150.

In summary, this embodiment provides a multi-point centralized grounding device 100, the grounding body 110 is detachably connected to the grounding body 130, and the grounding body 110 The bottom of the bottom extends into the ground opening 131, and at the same time, a plurality of terminals 150 are detachably connected to both sides of the ground main body 110 and are in electrical contact with the ground main body 110, thereby realizing the electrical connection between the connection terminals 150 and the ground surface. connect. In actual use, multiple ground wires 210 bundles can be connected to the ground ends of multiple electrical appliances, and the multiple ground wires 210 bundles are respectively connected to multiple connection terminals 150, and the connection terminals 150 are in electrical contact with the ground main body 110. The grounding main body 110 is in electrical contact with the grounding surface, thereby realizing the safe grounding of multiple electrical appliances. The accuracy of electrical grounding can be improved through multiple terminals 150. At the same time, the grounding through the same grounding main body 110 can greatly reduce the Use some energy. Compared with the prior art, the utility model provides a multi-point centralized grounding device 100, which can improve the accuracy of electrical control, has good grounding effect, and high safety. At the same time, the grounding wire 210 is simple, the assembly efficiency is high, and it can reduce the Consumes electrical energy to the ground.

second embodiment

This embodiment provides a multi-point centralized grounding device 100. Its basic structure, principle and technical effect are the same as those of the first embodiment. corresponding content in the example. Compared with the first embodiment, this embodiment adds a dust-proof structure.

Referring to Fig. 6 and Fig. 7, the present embodiment provides a multi-point centralized grounding device 100, which includes a grounding main body 110, a grounding embracing piece 130, a plurality of terminals 150, a first dustproof cover 180 and a second anti-dust cover 180. The dust cover 190 and the grounding ring 130 are used to be arranged on the ground surface, and the grounding hole 131 is provided on the grounding ring 130, the grounding body 110 and the grounding ring 130 are detachably connected, and the grounding body The bottom of 110 extends into the ground opening 131 for electrical contact with the ground surface. A plurality of terminals 150 are detachably connected to both sides of the ground main body 110 and electrically contact the ground main body 110 . The second dust-proof cover 190 is set outside the grounding ring 130, and the first dust-proof cover 180 is set on the second dust-proof cover 190 to form an accommodating cavity. The grounding main body 110, the grounding ring 130 and A plurality of connection terminals 150 are all accommodated in the accommodating cavity.

In this embodiment, a relief opening 191 is defined at the bottom of the second dustproof cover 190 , and the grounding ring 130 is accommodated in the relief opening 191 and welded to the external fixed grounding pipe 230 . Specifically, the bottom of the second dust-proof cover 190 is in contact with the surface of the fixed ground pipe 230 and kept sealed, preventing external impurities from entering the accommodating cavity through the gap at the bottom of the second dust-proof cover 190 .

In other preferred embodiments of the present utility model, the bottom of the second dust-proof cover 190 is coated with sealant, and the second dust-proof cover 190 is bonded to the fixed grounding pipe 230 as a whole, so that the second dust-proof cover 190 can be fixed as a whole. 2. The effect of the dustproof cover 190.

In this embodiment, a plurality of connection ports 181 are opened between the first dustproof cover 180 and the second dustproof cover 190 , and the plurality of connection ports 181 correspond to the plurality of connection terminals 150 one by one. Specifically, two semicircular openings are opened on one end of the first dustproof cover 180 , and two semicircular openings are correspondingly opened on the same side end of the second dustproof cover 190 to form two connection ports 181 . Similarly, two wiring ports 181 are also spliced at the other end of the first dust cover 180 and the other end of the second dust cover 190 .

The top of the grounding ring 130 is provided with a top support plate 160, the top support plate 160 is provided with a first bolt 161, and the grounding ring 130 is provided with a threaded hole matched with the first bolt 161, and the first bolts 161 are in turn Pass through the top support plate 160 and the ground main body 110 and extend into the threaded hole, so that the first bolt 161 connects the top support plate 160 , the ground main body 110 and the ground embracing member 130 as a whole. Specifically, two ends of the top support plate 160 are respectively provided with first bolts 161 , and the top support plate 160 , the ground main body 110 and the ground embracing member 130 are connected as a whole through the two first bolts 161 .

In this embodiment, support brackets 170 are provided on both sides of the grounding main body 110. The support brackets 170 are detachably connected to the top support plate 160 and have a plurality of brackets. There is a one-to-one correspondence, and the supporting piece is held against the incoming wire end of the corresponding connecting terminal 150 for limiting the incoming wire end of the connecting terminal 150 . Specifically, the support bracket 170 is in the shape of a few characters, and each support bracket 170 is provided with two brackets, and the two brackets are respectively arranged at both ends of the support bracket 170, so that the two adjacent terminals 150 can be connected to each other. Carry out limit.

The middle part of the support bracket 170 is spaced apart from the top support plate 160 and provided with an adjustment hole. A second bolt 171 is arranged in the adjustment hole, and the second bolt 171 passes through the middle part of the support bracket 170, the top support plate 160 and the first The upper surface of the dustproof cover 180 is connected with the adjusting nut 173 provided on the first dustproof cover 180 for adjusting the distance between the middle part of the support bracket 170 and the top support plate 160 . A large-sized washer is also provided between the adjusting nut 173 and the upper surface of the first dustproof cover 180 to prevent the first dustproof cover 180 from falling out.

In this embodiment, the first dust-proof cover 180 is fixed by the second bolt 171 , and the first dust-proof cover 180 is set on the second dust-proof cover 190 , thereby fixing the second dust-proof cover 190 .

9, the edge of the first dust cover 180 is provided with a first step sealing edge 183, the edge of the second dust cover 190 is provided with a second step sealing edge 193, the first step sealing edge 183 and the second step sealing edge 193 matches. By providing a stepped sealing edge structure, it is possible to effectively prevent external impurities and dust from entering the accommodating cavity, and at the same time make the contact edge beautiful, and the closing is stable and reliable.

In this embodiment, both the first dustproof cover 180 and the second dustproof cover 190 are plastic parts, and a sealing ring is provided at the opening of the connection terminal 150 of the first dustproof cover 180 and the second dustproof cover 190, The sealing effect can be further ensured.

Referring to FIG. 10 , the size of the bottom of the relief opening 191 of the second dustproof cover 190 is larger than the size of the grounding ring 130 , and the bottom of the side wall of the relief opening 191 has an inclined surface, so that the second dustproof cover 190 and A relief gap 195 is formed between the grounding embracing parts 130 to avoid protrusions and unevenness of the grounding embracing parts 130 after welding.

Referring to Fig. 11, the bottom of the second dust-proof cover 190 is uniformly provided with a plurality of air holes 197, and the diameter of each air hole 197 is 2-3mm, which can prevent the accumulation of water vapor in the inner cavity of the accommodation and avoid the accumulation of air in the inner cavity. Flooding occurs.

To sum up, in the multi-point centralized grounding device 100 provided by this embodiment, the grounding body 130 is arranged on the grounding surface, the grounding body 110 is detachably connected to the grounding body 130 , and the grounding body 110 The bottom of the bottom extends into the ground opening 131, and at the same time, a plurality of terminals 150 are detachably connected to both sides of the ground main body 110 and are in electrical contact with the ground main body 110, thereby realizing the electrical connection between the connection terminals 150 and the ground surface. connect. At the same time, the first dust-proof cover 180 and the second dust-proof cover 190 form an accommodating cavity and the grounding body 110 and other components are put into the accommodating cavity, which can prevent the entry of dust particles and improve the service life of the product.

third embodiment

Referring to Fig. 12, this embodiment provides a multi-point centralized grounding system 200, including multiple grounding wires 210, fixed grounding pipes 230 and a multi-point centralized grounding device 100, wherein the basic structure and principle of the multi-point centralized grounding device 100 and The resulting technical effect is the same as that of the second embodiment. For brief description, for parts not mentioned in this embodiment, reference may be made to the corresponding content in the second embodiment.

The multi-point centralized grounding device 100 includes a grounding main body 110, a grounding embracing piece 130 and a plurality of terminals 150, the grounding embracing piece 130 is used to be arranged on a grounding surface, and the grounding embracing piece 130 is provided with a grounding opening 131, the grounding body 110 is detachably connected to the grounding embracing part 130, and the bottom of the grounding body 110 extends into the grounding opening 131 for electrical contact with the grounding surface, and a plurality of terminals 150 are detachably connected to the grounding Both sides of the iron body 110 are in electrical contact with the ground iron body 110 . The plurality of grounding wires 210 are connected to the plurality of connection terminals 150 in one-to-one correspondence, the fixed grounding pipe 230 has a grounding surface, and the grounding ring 130 is disposed on the grounding surface.

The above descriptions are only preferred embodiments of the utility model, and are not intended to limit the utility model. For those skilled in the art, the utility model can have various modifications and changes. Any modification, equivalent replacement, improvement, etc. made within the spirit and principles of the present utility model shall be included in the protection scope of the present utility model.

Claims (10)

1. a kind of multiple spot centralized earthing device, which is characterized in that part and multiple connecting terminals are encircled including bonding main body, bonding, The bonding encircle part for be arranged in earthed surface, and the bonding is encircled on part and offers bonding aperture, the bonding Main body is encircled part with the bonding and is detachably connected, and the bonding aperture is protruded into the bottom of the bonding main body, is used for and institute State earthed surface electrical contact, multiple connecting terminals be detachably connected to the two sides of the bonding main body and with the bonding Main body electrical contact.

2. multiple spot centralized earthing device according to claim 1, which is characterized in that the bonding main body includes being wholely set Terminal connection part and plug division, the plug division bottom of the terminal connection part is set and protrudes into the bonding aperture, The shape of the plug division is matched with the shape of the bonding aperture.

3. multiple spot centralized earthing device according to claim 1 or 2, which is characterized in that set at the top of the bonding main body It is equipped with top support plate, the first bolt is provided in the top support plate, the bonding, which is encircled on part, to be offered and described The threaded hole that one bolt matches, top support plate and the bonding main body described in first screw bolt passes simultaneously protrude into institute Threaded hole is stated, so that top support plate described in first bolt, the bonding main body and the bonding are encircled part and be connected as One.

4. multiple spot centralized earthing device according to claim 3, which is characterized in that the top support plate is taken close to described The side of iron main body is provided with positioning convex strip, and positioning groove, the positioning convex strip and institute are offered at the top of the bonding main body Positioning groove is stated to match.

5. multiple spot centralized earthing device according to claim 3, which is characterized in that the two sides of the bonding main body are also set up There is Support bracket, the Support bracket and the top support plate are detachably connected and have multiple supporting springs, multiple supporting springs Corresponded with multiple connecting terminals, and the supporting spring is supported in the end of incoming cables of the corresponding connecting terminal, for pair The end of incoming cables of the connecting terminal is limited.

6. multiple spot centralized earthing device according to claim 5, which is characterized in that the middle part of the Support bracket with it is described Top support plate interval is arranged and offers adjustment hole, the second bolt is provided in the adjustment hole, second bolt is successively Connect across the middle part of the Support bracket and the top support plate and with the adjusting nut being arranged in the top support plate It connects, for adjusting middle part and the distance between the top support plate of the Support bracket.

7. multiple spot centralized earthing device according to claim 1, which is characterized in that the multiple spot centralized earthing device also wraps The first dustproof cover and the second dustproof cover are included, the second dust-proof bezel ring, is located at the bonding and encircles outside part, first dustproof cover Lid is located on second dustproof cover and is formed accommodating inner cavity, and the bonding main body, the bonding encircle part and multiple described Connecting terminal is accommodated in the accommodating inner cavity.

8. multiple spot centralized earthing device according to claim 7, which is characterized in that first dustproof cover and described second Multiple Wiring ports are offered between dustproof cover, multiple Wiring ports and multiple connecting terminals correspond.

9. multiple spot centralized earthing device according to claim 7, which is characterized in that the edge of first dustproof cover is arranged There is the first stepped sealed side, the edge of second dustproof cover is provided with the second ladder sealing edge, the first stepped sealed side It is matched with the second ladder sealing edge.

10. a kind of multiple spot concentrates earthed system, which is characterized in that including more piece-root grafting ground wires, dead earth pipe and such as claim The described in any item multiple spot centralized earthing devices of 1-9, multiple ground lines connect with multiple connecting terminals correspondingly It connects, the dead earth pipe has earthed surface, and the bonding is encircled part and is arranged on the earthed surface.