Wiring terminal box

Abstract

The utility model provides a wiring terminal box, which comprises a terminal seat, a terminal body and a terminal cover, and is characterized in that the terminal seat is used for connecting an incoming line device, the terminal body and the terminal seat are relatively fixed, the terminal body is arranged at one side, far away from the incoming line device, of the terminal seat, the terminal cover and the terminal body are relatively fixed, and the terminal cover is arranged at one side, far away from the terminal seat, of the terminal body; the terminal seat is provided with a wire passing hole communicated with an inner cavity of the wire inlet equipment, a conical sealing gasket is movably arranged in the wire passing hole, and the conical sealing gasket is provided with a plurality of wire penetrating holes for leading wires to pass through; when the conical sealing gasket moves in the wire passing hole along the conical direction, the hole wall of the wire passing hole applies radial pressure to the conical sealing gasket, and the conical sealing gasket deforms and is compressed under the action of the pressure, so that the inner diameters of the plurality of wire passing holes are reduced, a lead connected to the wire inlet equipment is held tightly, a tight sealing effect is formed, and the service life of the wire inlet equipment is prolonged. High-pressure oil gas is prevented from leaking into the terminal body through the wire passing hole, oil gas leakage accidents are avoided, and working safety is improved.

Description

Technical Field

[0001] The present application belongs to the technical field of compressors, and in particular relates to a wiring terminal box. Background Art

[0002] There are usually multiple monitoring points inside the compressor to monitor the bearing temperature of the support bearing and thrust bearing, the radial vibration of the rotor, the axial displacement and other parameters in real time. The monitoring signal needs to be connected to the remote control system through the lead wire. Usually, there is high-pressure lubricating oil gas in the area where these monitoring points are located, and a terminal box needs to be installed at the wiring lead-out position. Since traditional terminal boxes lack anti-leakage measures, lubricating oil gas leakage accidents are prone to occur, posing a major safety hazard. Utility Model Content

[0003] Therefore, the technical problem to be solved by the present application is to provide a terminal box, which can prevent high-pressure lubricating oil gas from leaking into the terminal body through the wire hole by setting a conical sealing gasket, avoid lubricating oil gas leakage accidents, and improve work safety.

[0004] In order to solve the above problems, the present application provides a terminal box, comprising a terminal seat, a terminal body and a terminal cover, wherein the terminal seat is used to connect an incoming line device, the terminal body is relatively fixed to the terminal seat, the terminal body is arranged on a side of the terminal seat away from the incoming line device, the terminal cover is relatively fixed to the terminal body, and the terminal cover is arranged on a side of the terminal body away from the terminal seat;

[0005] The terminal seat is provided with a wire hole communicating with the inner cavity of the incoming wire device, a conical sealing gasket is movably arranged in the wire hole, and the conical sealing gasket is provided with a plurality of wire holes for passing the lead wires;

[0006] When the conical sealing gasket moves in the wire hole along the first direction, the hole wall of the wire hole applies radial pressure to the conical sealing gasket. Under the action of the pressure, the conical sealing gasket is deformed and compressed, so that the inner diameters of several of the wire holes are reduced.

[0007] Optionally, at least part of the wire holes are platform structures.

[0008] Optionally, a first groove is formed on a surface of the terminal seat in contact with the incoming line device, and a first elastic pad is arranged in the first groove to form a first sealing structure.

[0009] Optionally, a second groove is formed on a surface of the terminal seat in contact with the terminal body, and a second elastic pad is arranged in the second groove to form a second sealing structure.

[0010] Optionally, a third groove is formed on a surface of the terminal body in contact with the terminal cover, and a third elastic pad is arranged in the third groove to form a third sealing structure.

[0011] Optionally, a first assembly opening is provided on the terminal body, the first assembly opening is used to install the adapter, a fourth groove is provided on the surface of the terminal body in contact with the adapter, and a fourth elastic pad is provided in the fourth groove to form a fourth sealing structure.

[0012] Optionally, the terminal body is further provided with a second assembly opening for installing a plug, a surface of the terminal body in contact with the plug is provided with a fifth groove, and a fifth elastic pad is provided in the fifth groove to form a fifth sealing structure.

[0013] Optionally, at least part of the terminal seat extends in a direction toward the incoming line device to form a first connecting section, and the first connecting section is connected to the incoming line port of the incoming line device through a thread;

[0014] At least a portion of the terminal seat extends toward the terminal body to form a second connecting section. A locking piece is provided in the terminal body, and the locking piece is connected to the second connecting section through a thread.

[0015] Optionally, the terminal box also includes a driving member, which is arranged on the opposite side of the first direction of the conical sealing gasket, and the driving member is used to apply force to the conical sealing gasket along the first direction so that the conical sealing gasket moves into the wire passing hole and moves within the wire passing hole along the first direction.

[0016] Optionally, a nameplate screw is provided on the terminal cover, and the nameplate screw is used to fix the nameplate.

[0017] Beneficial Effects

[0018] The terminal box provided in the embodiment of the utility model is configured with a conical sealing gasket in a wire hole connected to the inner cavity of the incoming wire device, and the conical sealing gasket is moved in a conical direction and is contracted and deformed when squeezed by the hole wall of the wire hole, so that the inner diameter of the wire threading hole through which the lead wire is passed on the conical sealing gasket is narrowed, and the lead wire connected to the incoming wire device is tightly held, thereby forming a tight sealing effect, preventing high-pressure lubricating oil and gas from leaking into the terminal body through the wire hole, avoiding lubricating oil and gas leakage accidents, and improving work safety. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 This is a schematic diagram of the three-dimensional structure of a terminal box of an optional embodiment of the present application;

[0020] Figure 2A cross-sectional view of a terminal box according to an optional embodiment of the present application;

[0021] Figure 3 A cross-sectional view of a terminal block according to an optional embodiment of the present application.

[0022] The reference numerals are:

[0023] 1. Terminal seat; 11. Wire hole; 12. First connecting section; 13. Second connecting section; 2. Terminal body; 3. Terminal cover; 4. Conical sealing gasket; 41. Wire hole; 5. Adapter; 6. Plug; 7. Locking piece; 8. Driving piece; 9. Nameplate screw. DETAILED DESCRIPTION

[0024] In the description of the present application, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0025] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of the present utility model, the meaning of "plurality" is two or more, unless otherwise clearly and specifically defined.

[0026] In this application, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be an indirect connection through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in this utility model can be understood according to specific circumstances.

[0027] The preferred embodiments of the present invention are described below in conjunction with the accompanying drawings. It should be understood that the preferred embodiments described herein are only used to illustrate and explain the present invention, and are not used to limit the present invention.

[0028] See also Figures 1 to 3As shown, according to an embodiment of the present application, a terminal box is provided, including a terminal seat 1, a terminal body 2 and a terminal cover 3, the terminal seat 1 is used to connect an incoming line device, the terminal body 2 is relatively fixed to the terminal seat 1, the terminal body 2 is arranged on a side of the terminal seat 1 away from the incoming line device, the terminal cover 3 is relatively fixed to the terminal body 2, and the terminal cover 3 is arranged on a side of the terminal body 2 away from the terminal seat 1; a wire passing hole 11 connected to the inner cavity of the incoming line device is provided on the terminal seat 1, a conical sealing gasket 4 is movably provided in the wire passing hole 11, and a plurality of wire threading holes 41 are provided on the conical sealing gasket 4 for passing the lead wires; when the conical sealing gasket 4 moves in the wire passing hole 11 along a first direction, the hole wall of the wire threading hole 41 applies radial pressure to the conical sealing gasket 4, and the conical sealing gasket 4 is deformed and compressed under the action of the pressure, so that the inner diameter of the plurality of wire threading holes 41 is reduced.

[0029] The terminal box provided in the present application is configured such that a conical sealing gasket 4 is arranged in a wire hole 11 connected to the inner cavity of the incoming wire device, and the conical sealing gasket 4 is moved in a conical direction and is squeezed by the hole wall of the wire hole 11 so as to shrink and deform, thereby narrowing the inner diameter of a wire threading hole 41 on the conical sealing gasket 4 through which the lead wire is passed, and tightly holding the lead wire connected to the incoming wire device, thereby forming a tight sealing effect, preventing high-pressure lubricating oil gas from leaking into the terminal body 2 through the wire hole 11, avoiding lubricating oil gas leakage accidents, and improving work safety.

[0030] Among them, the incoming line equipment can be equipment such as compressors that need lines to enter.

[0031] The terminal seat 1 is arranged at the lead entry position of the compressor, specifically, the terminal seat 1 is arranged at the lead entry port of the compressor housing.

[0032] The lead wire may be a signal wire or a power wire, etc. When the lead wire is a signal wire, the monitoring signal inside the incoming device can be transmitted to the remote control system through the lead wire; when the lead wire is a power wire, the external power supply can transmit electric energy to the incoming device through the lead wire.

[0033] Among them, a terminal body 2 is arranged on the side of the terminal seat 1 away from the incoming line device, and the terminal body 2 is connected to the terminal seat 1, and the connection method can be bolt connection or welding, etc. In the embodiment of the present application, a stable installation position is provided for the terminal body 2 by setting the terminal seat 1, ensuring that the terminal body 2 will not shake or shift during use.

[0034] The interior of the terminal body 2 is a hollow structure, forming a cavity for passing the lead wire. The lead wire can first enter the terminal body 2 and then enter the incoming line device through the terminal body 2 and the terminal seat 1.

[0035] Specifically, a wire passing hole 11 is provided on the terminal block 1, the axis of the wire passing hole 11 coincides with the axis of the wire inlet, and the wire passing hole 11 penetrates the terminal block 1 in the axial direction, so that one end of the wire passing hole 11 can be connected to the inner cavity of the wire inlet device, and the other end can be connected to the cavity of the terminal block 1.

[0036] Among them, a conical sealing pad 4 is arranged in the wire hole 11, and the conical sealing pad 4 can be a conical rubber pad, etc. A plurality of threading holes 41 are opened in the middle of the conical sealing pad 4 for passing the lead wires. It can be understood that the number of threading holes 41 can be opened according to the number of lead wires, and this application does not make further restrictions.

[0037] Among them, the conical sealing gasket 4 can move in the wire hole 11 along the first direction. The first direction can be the conical direction of the conical sealing gasket 4. It can be understood that the conical direction of the conical sealing gasket 4 is the direction from the end of the conical sealing gasket 4 with a large end face area toward the end of the conical sealing gasket 4 with a small end face area. In the embodiment of the present application, the end of the conical sealing gasket 4 with a large end face area is arranged away from the air intake device, and the end of the conical sealing gasket 4 with a small end face area is arranged close to the air intake device, that is, the first direction is the direction of the terminal seat 1 toward the air intake device.

[0038] Specifically, as one embodiment, the wire hole 11 is cylindrical, and the maximum outer diameter of the conical sealing gasket 4 is larger than the inner diameter of the wire hole 11, so that when the conical sealing gasket 4 moves in the wire hole 11 along the conical direction, the hole wall of the wire hole 11 can exert a radial force on the conical sealing gasket 4, that is, an extrusion force, so that the conical sealing gasket 4 shrinks and deforms under the action of the extrusion force, thereby driving the inner diameter of the wire hole 41 to narrow, and tightly embraces the lead wire connected to the incoming wire equipment, forming a good sealing effect; as another embodiment, the wire hole 11 is conical, and the conical sealing gasket 4 has the same conical direction as the wire hole 11, so that when the conical sealing gasket 4 moves in the wire hole 11 along the conical direction, the hole wall of the wire hole 11 can still exert a radial force on the conical sealing gasket 4, that is, an extrusion force, so that the conical sealing gasket 4 shrinks and deforms under the action of the extrusion force, thereby driving the inner diameter of the wire hole 41 to narrow, and tightly embraces the lead wire connected to the incoming wire equipment, forming a good sealing effect.

[0039] The terminal box further includes a terminal cover 3, which is arranged on a side of the terminal body 2 away from the terminal seat 1. The terminal cover 3 is connected to the terminal body 2, and the connection method may be bolt connection or welding, etc. In the embodiment of the present application, the terminal cover 3 can be provided to close the terminal body 2, prevent people from directly contacting the live terminal, avoid electric shock accidents, and provide certain electrical safety protection; at the same time, it can reduce the entry of impurities such as dust and water vapor into the terminal box, and protect the terminals and connection parts from corrosion and short circuit risks.

[0040] In some possible implementations provided in this application, see Figure 2and Figure 3 As shown, at least part of the wire hole 11 is a platform structure. By setting at least part of the wire hole 11 as a platform structure that can adapt to the conical sealing gasket 4, it is easy to move the conical sealing gasket 4 into the wire hole 11. At the same time, after the conical sealing gasket 4 moves into the wire hole 11, the inner wall of the wire hole 11 and the outer wall of the conical sealing gasket 4 can be completely fitted, and the conical sealing gasket 4 is evenly stressed, thereby improving the sealing effect.

[0041] In the embodiment of the present application, the wire hole 11 includes a first section and a second section that are interconnected, and the first section is arranged on a side of the second section away from the incoming line device.

[0042] In the embodiment of the present application, the conical sealing gasket 4 is in a truncated cone shape, and the conical sealing gasket 4 is suitable for moving into the first section and moving in the first section along the first direction.

[0043] Among them, in the embodiment of the present application, the first section is a truncated cone with open ends, the second section is a cylindrical shape, and the end of the first section with a smaller end surface area is connected to the second section.

[0044] Specifically, the axis line of the first section coincides with the axis line of the second section, and the diameter of the end with a smaller end surface area of ​​the first section is larger than the diameter of the second section, so that a limiting boss is formed between the first section and the second section to prevent the conical sealing gasket 4 from sliding into the incoming line equipment through the second section.

[0045] Among them, the wire hole 11 can also include a third section and a fourth section, the third section has the same diameter as the end with a larger end surface area of ​​the first section, and the third section is arranged on the side of the first section away from the second section; the fourth section has the same diameter as the end with a smaller end surface area of ​​the first section, and the fourth section is arranged between the first section and the second section.

[0046] In some possible implementations provided in this application, see Figure 2 As shown, a first groove is formed on the surface of the terminal block 1 that contacts the incoming line device, and a first elastic pad is arranged in the first groove to form a first sealing structure, thereby preventing leakage from occurring at the joint surface between the terminal block 1 and the incoming line device.

[0047] The first groove may be an annular groove. In the embodiment of the present application, the first groove is provided on the surface of the terminal block 1 that contacts the incoming line device.

[0048] The first elastic pad can be an O-type sealing ring. For example, the first elastic pad can be a high temperature resistant O-type sealing ring, a normal temperature O-type sealing ring, or a low temperature O-type sealing ring, which can be selected according to actual conditions.

[0049] Specifically, after the terminal block 1 is fixed on the incoming line device, the first elastic pad is compressed in the first groove. At this time, the first elastic pad generates a rebound force, so that the first elastic pad always maintains close contact with the surface of the incoming line device contacting the terminal block 1, and the sealing performance can be maintained even in the case of pressure fluctuations or vibrations.

[0050] In some possible implementations provided in this application, see Figure 2 As shown, the surface of the terminal block 1 in contact with the terminal body 2 is provided with a second groove, and a second elastic pad is provided in the second groove to form a second sealing structure. By providing the second sealing structure, leakage can be avoided at the joint surface of the terminal block 1 and the terminal body 2, thereby improving the sealing effect of the terminal box.

[0051] The second groove may be an annular groove. In the embodiment of the present application, the second groove is provided on the surface of the terminal seat 1 that contacts the terminal body 2 .

[0052] The second elastic pad can be an O-type sealing ring. For example, the second elastic pad can be a high temperature resistant O-type sealing ring, a normal temperature O-type sealing ring, or a low temperature O-type sealing ring, which can be selected according to actual conditions.

[0053] Specifically, after the terminal body 2 is fixed on the terminal seat 1, the second elastic pad is compressed in the second groove. At this time, the second elastic pad generates a rebound force, so that the second elastic pad always maintains close contact with the surface of the terminal body 2 contacting the terminal seat 1, and the sealing performance can be maintained even in the case of pressure fluctuations or vibrations.

[0054] In some possible implementations provided in this application, see Figure 2 As shown, the surface of the terminal body 2 in contact with the terminal cover 3 is provided with a third groove, and a third elastic pad is provided in the third groove to form a third sealing structure. By providing the third sealing structure, leakage can be avoided at the joint surface of the terminal body 2 and the terminal cover 3, thereby improving the sealing effect of the terminal box.

[0055] The third groove may be an annular groove. In the embodiment of the present application, the third groove is provided on the surface of the terminal body 2 that contacts the terminal cover 3 .

[0056] The third elastic pad can be an O-type sealing ring. For example, the third elastic pad can be a high temperature resistant O-type sealing ring, a normal temperature O-type sealing ring, or a low temperature O-type sealing ring, which can be selected according to actual conditions.

[0057] Specifically, after the terminal cover 3 is fixed on the terminal body 2, the third elastic pad is compressed in the third groove. At this time, the third elastic pad generates a rebound force, so that the third elastic pad always maintains close contact with the surface of the terminal cover 3 contacting the terminal body 2, and the sealing performance can be maintained even in the case of pressure fluctuations or vibrations.

[0058] In some possible implementations provided in this application, see Figure 1 and Figure 2 As shown, the terminal body 2 is provided with a first assembly opening, the first assembly opening is used to install the adapter 5, the surface of the terminal body 2 in contact with the adapter 5 is provided with a fourth groove, and a fourth elastic pad is provided in the fourth groove to form a fourth sealing structure. By providing the fourth sealing structure, leakage can be avoided at the joint surface of the terminal body 2 and the adapter 5, thereby improving the sealing effect of the terminal box.

[0059] In some possible implementations provided in this application, see Figure 1 and Figure 2 As shown, the terminal body 2 is also provided with a second assembly opening for installing the plug 6. The surface of the terminal body 2 in contact with the plug 6 is provided with a fifth groove, and a fifth elastic pad is provided in the fifth groove to form a fifth sealing structure.

[0060] The terminal body 2 may be provided with at least two assembly openings, and the at least two assembly openings are evenly arranged along the circumferential direction of the terminal body 2 .

[0061] The at least two assembly ports include a first assembly port, which is a wiring port and is used to install the adapter 5 to achieve connection between cables of different diameters, types or specifications.

[0062] Specifically, after the adapter 5 is fixed on the first assembly opening, the fourth elastic pad is compressed in the fourth groove. At this time, the fourth elastic pad generates a rebound force, so that the fourth elastic pad always maintains close contact with the surface of the terminal body 2 that contacts the adapter 5, and the sealing performance can be maintained even in the case of pressure fluctuations or vibrations.

[0063] The at least two assembly ports further include a second assembly port, which is a spare port. When the second assembly port is not in use, it is used to install a plug 6 to close the terminal body 2 .

[0064] Specifically, after the plug 6 is fixed on the second assembly port, the fifth elastic pad is compressed in the fifth groove. At this time, the fifth elastic pad generates a rebound force, so that the fifth elastic pad always maintains close contact with the surface of the terminal body 2 that contacts the plug 6, and can maintain the sealing performance even in the case of pressure fluctuations or vibrations.

[0065] In some possible implementations provided in this application, see Figure 2 As shown, at least part of the terminal base 1 extends in the direction toward the incoming line device to form a first connecting section 12, and the first connecting section 12 is connected to the incoming line port of the incoming line device through a thread; at least part of the terminal base 1 extends in the direction toward the terminal body 2 to form a second connecting section 13, and a locking piece 7 is provided in the terminal body 2, and the locking piece 7 is connected to the second connecting section 13 through a thread.

[0066] The first connecting section 12 may be cylindrical, and an external thread is provided on the outer peripheral wall of the first connecting section 12 .

[0067] Specifically, an internal thread matching the external thread of the first connecting section 12 is provided on the inner wall of the line inlet of the line inlet device, so that the first connecting section 12 can be screwed into the line inlet to achieve a reliable connection between the terminal block 1 and the line inlet device.

[0068] The second connecting section 13 may also be cylindrical, and an external thread is also provided on the outer peripheral wall of the second connecting section 13 .

[0069] Specifically, a locking member 7 is fixedly provided in the terminal body 2, and the locking member 7 can be a nut or the like, and an internal thread matching the external thread of the second connecting section 13 is provided on the inner wall of the locking member 7. A through hole is provided at the position relative to the locking member 7 on one end of the terminal body 2 close to the terminal seat 1, and the second connecting section 13 can extend into the terminal body 2 through the through hole, and is connected with the locking member 7 through the internal thread and the external thread, so as to realize a reliable connection between the terminal seat 1 and the terminal body 2.

[0070] In some possible implementations provided in this application, see Figure 2 As shown, the terminal box also includes a driving member 8, which is arranged on the opposite side of the first direction of the conical sealing gasket 4. The driving member 8 is used to apply force to the conical sealing gasket 4 along the first direction, so that the conical sealing gasket 4 moves into the wire hole 11 and moves in the wire hole 11 along the first direction, which can ensure that the extrusion force on the conical sealing gasket 4 continues to increase, reduce the gap between the wire hole 41 and the lead, and improve the sealing effect.

[0071] The driving member 8 includes a screwing portion and a stop portion. The screwing portion can be screwed onto the second connecting section 13 . The stop portion is arranged at one end of the screwing portion away from the locking member 7 , and at least part of the stop plate extends into the wire hole 11 along the first direction.

[0072] Specifically, when the screwing part is driven to rotate, the stop plate can push the conical sealing gasket 4 to move along the first direction, so that the conical sealing gasket 4 can move into the wire hole 11 and move in the wire hole 11 along the first direction; when the screwing part stops rotating, the stop plate can limit the conical sealing gasket 4 in the opposite direction of the first direction, thereby achieving the purpose of locking the position of the conical sealing gasket 4 and preventing the conical sealing gasket 4 from falling out of the wire hole 11.

[0073] In some possible implementations provided in this application, see Figure 1 and Figure 2 As shown, the terminal cover 3 is provided with a nameplate screw 9, which is used to fix the nameplate. By providing the nameplate screw 9 on the terminal cover 3, the nameplate can be firmly fixed at a desired location, such as the surface of the equipment, the product housing, the wall of a building, etc., to ensure that the nameplate will not fall off or shift easily, so that the nameplate can clearly and stably display relevant information, such as brand logo, product model, parameter description, safety tips, etc.

[0074] A threaded hole is provided at the center of the terminal cover 3, and the nameplate screw 9 can be screwed into the threaded hole.

[0075] Specifically, a hole matching the diameter of the nameplate screw 9 is pre-drilled on the nameplate, and then the hole of the nameplate is aligned with the screw and passed through, and then screwed into the threaded hole of the terminal cover 3 and tightened to firmly fix the nameplate.

[0076] The terminal box provided in the embodiment of the present application is configured such that a conical sealing gasket 4 is arranged in a wire hole 11 connected to the inner cavity of the incoming wire device, and the conical sealing gasket 4 is moved in a conical direction and is contracted and deformed when squeezed by the hole wall of the wire hole 11, so that the inner diameter of the wire threading hole 41 on the conical sealing gasket 4 through which the lead wire is passed is narrowed, and the lead wire connected to the incoming wire device is tightly held, thereby forming a tight sealing effect, preventing high-pressure lubricating oil gas from leaking into the terminal body 2 through the wire hole 11, avoiding lubricating oil gas leakage accidents, and improving work safety.

[0077] It is easy for those skilled in the art to understand that, under the premise of no conflict, the above-mentioned advantageous methods can be freely combined and superimposed.

[0078] The above are only preferred embodiments of the present application and are not intended to limit the present application. Any modifications, equivalent replacements and improvements made within the spirit and principles of the present application shall be included in the protection scope of the present application. The above are only preferred implementations of the present application. It should be pointed out that for ordinary technicians in this technical field, several improvements and variations can be made without departing from the technical principles of the present application, and these improvements and variations should also be regarded as the protection scope of the present application.

Claims

1. A terminal box, characterized in that: The invention comprises a terminal seat (1), a terminal body (2) and a terminal cover (3), wherein the terminal seat (1) is used to connect an incoming line device, the terminal body (2) is relatively fixed to the terminal seat (1), the terminal body (2) is arranged on a side of the terminal seat (1) away from the incoming line device, and the terminal cover (3) is relatively fixed to the terminal body (2), and the terminal cover (3) is arranged on a side of the terminal body (2) away from the terminal seat (1); The terminal seat (1) is provided with a wire hole (11) which is in communication with the inner cavity of the incoming wire device, a conical sealing gasket (4) is movably arranged in the wire hole (11), and the conical sealing gasket (4) is provided with a plurality of wire holes (41) for passing the lead wires; When the conical sealing gasket (4) moves in the wire-passing hole (11) along a first direction, the hole wall of the wire-passing hole (41) applies radial pressure to the conical sealing gasket (4), and under the action of the pressure, the conical sealing gasket (4) is deformed and compressed, so that the inner diameters of several of the wire-passing holes (41) are reduced.

2. The terminal box according to claim 1, characterized in that: At least part of the wire-passing holes (11) is a platform structure.

3. The terminal box according to claim 1, characterized in that: A first groove is provided on the surface of the terminal seat (1) in contact with the incoming line device, and a first elastic pad is arranged in the first groove to form a first sealing structure.

4. The terminal box according to claim 1, characterized in that: A second groove is provided on the surface of the terminal seat (1) in contact with the terminal body (2), and a second elastic pad is arranged in the second groove to form a second sealing structure.

5. The terminal box according to claim 1, characterized in that: A third groove is provided on the surface of the terminal body (2) in contact with the terminal cover (3), and a third elastic pad is arranged in the third groove to form a third sealing structure.

6. The terminal box according to claim 1, characterized in that: The terminal body (2) is provided with a first assembly opening, the first assembly opening being used for installing an adapter (5), a fourth groove is provided on a surface of the terminal body (2) in contact with the adapter (5), a fourth elastic pad is provided in the fourth groove to form a fourth sealing structure.

7. The terminal box according to claim 1, characterized in that: The terminal body (2) is also provided with a second assembly opening, the second assembly opening being used for installing a plug (6), and a fifth groove is provided on the surface of the terminal body (2) in contact with the plug (6), a fifth elastic pad being provided in the fifth groove to form a fifth sealing structure.

8. The terminal box according to claim 1, characterized in that: At least a portion of the terminal seat (1) extends in a direction toward the incoming line device to form a first connecting section (12), and the first connecting section (12) is connected to the incoming line port of the incoming line device via a thread; At least part of the terminal seat (1) extends in the direction of the terminal body (2) to form a second connecting section (13); a locking piece (7) is provided in the terminal body (2); the locking piece (7) is connected to the second connecting section (13) via a thread.

9. The terminal box according to claim 1, characterized in that: The terminal box further comprises a driving member (8), the driving member (8) being arranged on the opposite side of the first direction of the conical sealing gasket (4), the driving member (8) being used to apply force to the conical sealing gasket (4) along the first direction so that the conical sealing gasket (4) moves into the wire hole (11) and moves in the wire hole (11) along the first direction.

10. The terminal box according to claim 1, characterized in that: The terminal cover (3) is provided with a nameplate screw (9), and the nameplate screw (9) is used to fix the nameplate.

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