Data transmission substation

Abstract

The invention relates to the field of mining equipment, in particular to a data transmission substation. A data transmission substation is characterized in that the data transmission substation comprises a shell and a cable connector connected to the shell, the cable connector comprises a fast-assembly plug and a fast-assembly socket, and the fast-assembly socket is connected with the shell. An external cable is connected with the fast-assembly plug, and the fast-assembly socket is installed on the shell and then is connected with an electric appliance element in the shell. When connection needs to be used, the quick-assembly plug is inserted into the quick-assembly socket. When dismounting is needed, the fast-assembly plug is pulled out from the fast-assembly socket. And the requirement of convenient plugging connection of the cable in the use process of the data transmission substation is met.

Description

TECHNICAL FIELD

[0001] The present application relates to the field of mining equipment, in particular to a data transmission substation. BACKGROUND

[0002] The data transmission substation is the core node of the coal mine safety monitoring system, responsible for collecting data of various sensors (such as gas, temperature, and negative pressure sensors) in the mine, and transmitting data to the ground center station through communication cables. The reliability and stability of the connection directly affect the effective operation of the entire monitoring system and the safety production of the mine.

[0003] Traditional cables are usually locked and fixed with threaded connectors and interfaces on the data transmission substation. When the data transmission substation is installed on a self-moving tail, it needs to plug and unplug the cable to adapt to the dynamic movement of the equipment and cooperate with the cable winding and unwinding. However, the existing connection method of the cable and the data transmission substation is difficult to plug and unplug. SUMMARY

[0004] In order to realize the requirement of convenient plugging and unplugging connection of the cable during the use of the existing data transmission substation, the present application provides a data transmission substation.

[0005] The data transmission substation provided by the present application adopts the following technical solution: A data transmission substation, characterized in that it comprises a shell and a cable connector connected to the shell, The cable connector comprises a quick-connect plug and a quick-connect socket, and the quick-connect socket is connected to the shell.

[0006] By adopting the above technical solution, the external cable is connected to the quick-connect plug, and the quick-connect socket is installed on the shell and connected to the electrical components in the shell. When connection is needed, the quick-connect plug is inserted into the quick-connect socket. When disassembly is needed, the quick-connect plug is pulled out of the quick-connect socket. This meets the requirement of convenient plugging and unplugging connection of the cable during the use of the data transmission substation.

[0007] Preferably, the shell comprises an explosion-proof cavity and an intrinsic safety cavity, an explosion-proof partition plate is arranged between the explosion-proof cavity and the intrinsic safety cavity, an explosion-proof terminal post is arranged on the explosion-proof partition plate, and the quick-connect socket is in communication with the intrinsic safety cavity.

[0008] By adopting the above technical solution, the shell is arranged in the structure of the explosion-proof cavity and the intrinsic safety cavity, and the explosion-proof cavity and the intrinsic safety cavity are in communication through the explosion-proof terminal post. The explosion-proof cavity and the intrinsic safety cavity can be electrically connected through the explosion-proof terminal post without affecting the explosion-proof performance of the explosion-proof cavity. The quick-connect socket of the cable connector is connected to the shell at the position matched with the intrinsic safety cavity, so that the quick-connect socket can be used without explosion-proof design, which is a low-cost design for convenient plugging and unplugging connection of the cable, and is more convenient to use.

[0009] Preferably, the explosion-proof terminal post comprises an upper end located in the explosion-proof cavity and a lower end located in the intrinsic safety cavity, and the upper end and the lower end are communicated through a conductor in the explosion-proof terminal post.

[0010] By adopting the above technical scheme, the explosion-proof terminal post communicates the explosion-proof cavity and the intrinsic safety cavity, the upper end of the explosion-proof terminal post is connected with the electrical component in the explosion-proof cavity, and the lower end of the explosion-proof terminal post is connected with the quick-mount socket.

[0011] Preferably, the quick-mount socket terminal and the lower end of the explosion-proof terminal post are connected through the intrinsic safety cable.

[0012] By adopting the above technical scheme, since the quick-mount socket and the lower end of the explosion-proof terminal post are both located in the intrinsic safety cavity, the intrinsic safety cable is used to connect the two, thereby meeting the safety design requirement.

[0013] Preferably, the quick-mount socket comprises a bottom plate and a connecting column, the bottom plate is formed with a plurality of mounting holes, and the mounting holes are connected with the shell through fasteners.

[0014] Preferably, the side surface of the connecting column is integrally formed with a positioning block protruding from the surface of the connecting column, the outer side of the positioning block is formed with a positioning groove, the quick-mount plug comprises a connecting groove matched with the connecting column, and the part of the quick-mount plug located in the connecting groove is provided with a locking block with a width equal to that of the positioning groove.

[0015] By adopting the above technical scheme, the positioning groove on the positioning block and the locking block are matched to position the cooperation angle position of the quick-mount plug and the quick-mount socket, so that after preliminary alignment of the positioning groove and the locking block before connection, the quick-mount plug and the quick-mount socket can be connected at the designed cooperation angle.

[0016] Preferably, the side of the positioning groove close to the quick-mount plug penetrates the positioning block, the positioning groove is formed with a clamping block, a space is left between the clamping block and the side wall of the side of the positioning groove away from the quick-mount plug, the side of the clamping block close to the quick-mount plug is an inclined surface inclined to the bottom surface of the positioning groove in the direction close to the quick-mount plug, the side surface of the quick-mount plug is formed with an accommodating groove, the side of the accommodating groove close to the quick-mount socket penetrates the quick-mount plug, an operating button is hinged in the accommodating groove, the end of the locking block close to the quick-mount socket penetrates the side wall of the quick-mount plug and extends into the connecting groove, and a first elastic member providing a pushing force is arranged between the end of the operating button away from the quick-mount socket and the bottom surface of the connecting groove.

[0017] By adopting the technical scheme, when the cable needs to be connected, the quick plug connected with the cable is inserted into the quick socket, the locking block of the operation button abuts against the inclined surface of the clamping block when the locking block is reset at the position between the clamping block and the side wall of the positioning groove away from the quick plug, and the locking block and the clamping block cooperate to form a locking structure. When the cable needs to be disconnected, the locking block and the clamping block are unlocked by pressing the operation button, and then the quick plug can be pulled out.

[0018] Preferably, the first elastic member is preferably a spring.

[0019] Preferably, the shell is provided with an explosion-proof cavity, the quick socket is in communication with the explosion-proof cavity, the quick socket comprises a bottom plate, a connecting column and a threaded column, a first sealing gasket is arranged on the threaded column at a position close to the bottom plate, the outer side of the connecting column is formed with a plurality of track grooves, the depth of the track grooves is less than the wall thickness of the connecting column, the track grooves comprise an entering section along the length direction of the connecting column, an inclined section extending along the circumference of the connecting column from the end of the entering section, and a tail section extending along the circumference of the connecting column from one end of the inclined section away from the entering section, the side of the connecting column facing the quick plug is formed with a plug groove, one end of the quick plug facing the quick socket is formed with a limiting plate slightly larger in size than the outer side of the quick plug, the side of the limiting plate facing the quick socket is formed with a plug column, the diameter of the plug column is equal to the inner diameter of the plug groove, the end of the plug column away from the limiting plate is rounded, the outer side of the plug column is formed with an annular groove, the annular groove is spaced apart from the end of the plug column, a second sealing ring is embedded in the annular groove, the outer side of the quick plug is sleeved with a sleeve ring, one end of the sleeve ring is formed with a limiting ring, the inner diameter of the limiting ring is smaller than the diameter of the limiting plate, the inner side of the other end of the sleeve ring is uniformly formed with a plurality of track locking blocks, the width of the track locking blocks is smaller than the width of the track grooves, and the side of the track locking blocks close to the limiting ring is a plane perpendicular to the length direction line of the quick plug, the transition surface of the side of the track locking blocks away from the limiting ring is rounded.

[0020] By adopting the technical scheme, when the cable needs to be connected, the quick plug connected with the cable is inserted into the quick socket, the locking block of the operation button abuts against the inclined surface of the clamping block when the locking block is reset at the position between the clamping block and the side wall of the positioning groove away from the quick plug, and the locking block and the clamping block cooperate to form a locking structure. When the cable needs to be disconnected, the locking block and the clamping block are unlocked by pressing the operation button, and then the quick plug can be pulled out. Since the second sealing ring has a certain length, the second sealing ring is still sealed between the plug groove when the electrical connection is disconnected during the pulling-out process, and the use is safer.

[0021] Preferably, the inner side of the second sealing ring is a circular hole, the outer side of the second sealing ring is a truncated cone, and the side close to the limiting plate is a large-diameter end, and the other end is a small-diameter end, the outer diameter of the small-diameter end is equal to the outer diameter of the insertion column, the outer side of the truncated cone is tapered by more than 1 degree and less than 5 degrees, and the bottom surface of the annular groove is a continuous wave shape from the perspective of a cross-sectional view, the wave peak height of each wave is equal and abuts against the inner side wall of the second sealing ring, the wave starts from the side close to the limiting plate to the direction away from the limiting plate, and the wave valley height gradually increases, and the wave valley of the wave closest to the limiting plate is the lowest point.

[0022] By adopting the above technical scheme, the wave valley design of the bottom surface of the annular groove allows the second sealing ring to deform into the insertion slot and finally form an overall effective sealing surface and multiple tight annular fitting surfaces.

[0023] In summary, the present application has at least one of the following beneficial technical effects: 1. The shell is arranged as an explosion-proof cavity and an intrinsically safe cavity structure, and the explosion-proof cavity and the intrinsically safe cavity are connected through an explosion-proof terminal post. The explosion-proof terminal post allows the explosion-proof cavity and the intrinsically safe cavity to be electrically connected without affecting the explosion-proof performance of the explosion-proof cavity. The quick connector of the cable connector is connected to the shell at the position matched with the intrinsically safe cavity, so that the quick connector can be used without explosion-proof design, and the convenient plug-in connection design of the cable at a lower cost is more convenient to use.

[0024] 2. The explosion-proof terminal post connects the explosion-proof cavity and the intrinsically safe cavity, the upper end of the explosion-proof terminal post is connected to the electrical element in the explosion-proof cavity, and the lower end of the explosion-proof terminal post is connected to the quick connector.

[0025] 3. The positioning groove on the positioning block cooperates with the locking block to position the cooperation angle position of the quick connector and the quick connector, so that after preliminary alignment of the positioning groove and the locking block before connection, the quick connector and the quick connector can be connected at the designed cooperation angle.

[0026] 4. When the cable needs to be connected, the quick connector connected with the cable is inserted into the quick connector, the locking block of the operation button abuts against the inclined surface of the clamping block when the locking block reaches the position between the clamping block and the side wall of the positioning groove away from the quick connector, and the locking block and the clamping block form a locking structure. When the cable needs to be disconnected, press the operation button to unlock the locking block and the clamping block, and then pull out the quick connector.

[0027] 5. When connecting the cable, the connecting column of the quick plug is inserted into the insertion slot of the quick socket, at this time the second sealing ring on the connecting column abuts against the outer sidewall of the insertion slot, and the track locking block enters the entering section of the track slot. Continue to insert the quick plug, so that the track locking block reaches the position where the entering section and the inclined section meet, and then start to rotate the sleeve ring, so that the track locking block enters the tail stopping section along the inclined section. Since the inclined section is arranged in the circumferential direction of the connecting column, the connecting column is guided to continue to run into the insertion slot in this process, and a sealing surface is formed between the second sealing ring and the sidewall of the insertion slot. When pulling out the cable, rotate the sleeve ring in the opposite direction, so that the track locking block is pulled out from the track slot to the position of the entering section, and then pull out the quick plug. Since the second sealing ring has a certain length, the second sealing ring is still sealed between the insertion slot when the electrical connection is disconnected during the pulling-out process, and the use is safer. BRIEF DESCRIPTION OF DRAWINGS

[0028] Figure 1 is a structural schematic diagram of example one; Figure 2 is a structural schematic diagram of the quick socket in example one; Figure 3 is a structural schematic diagram of the quick plug in example one; Figure 4 is a structural schematic diagram of the quick socket in example two; Figure 5 is a structural schematic diagram of the quick plug in example two.

[0029] The following table explains the reference signs: 1, housing; 2, cable joint; 3, explosion-proof cavity; 4, intrinsic safety cavity; 5, explosion-proof partition; 6, explosion-proof connecting column; 7, quick plug; 8, quick socket; 9, bottom plate; 10, connecting column; 11, mounting hole; 12, positioning block; 13, positioning slot; 14, clamping block; 15, connecting slot; 16, accommodating slot; 17, operation button; 18, locking block; 19, elastic member; 20, insertion slot; 21, threaded column; 22, first sealing gasket; 23, track slot; 24, entering section; 25, inclined section; 26, tail stopping section; 27, limiting plate; 28, connecting column; 29, annular groove; 30, second sealing ring; 31, sleeve ring; 32, limiting ring; 33, track locking block. DETAILED DESCRIPTION

[0030] The following will be described in detail with reference to the accompanying drawings. Figures 1-5 The present application is further described in detail.

[0031] The present application discloses a data transmission substation. In the embodiments, "up", "down", "left" and "right" are used to describe the relative direction of the position relationship, and are not limited by the position relationship.

[0032] Example one: AsFigure 1 As shown, the data transmission substation includes a housing 1 and a cable connector 2 connected to the housing 1.

[0033] like Figure 1 As shown, the housing 1 includes an explosion-proof chamber 3 and an intrinsically safe chamber 4. An explosion-proof partition 5 is provided between the explosion-proof chamber 3 and the intrinsically safe chamber 4. An explosion-proof terminal block 6, such as a nine-core mining terminal block, is provided on the explosion-proof partition 5. The explosion-proof terminal block 6 includes an upper end located in the explosion-proof chamber 3 and a lower end located in the intrinsically safe chamber 4. The upper end and the lower end are connected through a conductor inside the explosion-proof terminal block 6. The upper end of the explosion-proof terminal block 6 is connected to the electrical components inside the explosion-proof chamber 3.

[0034] like Figure 1 and Figure 2 As shown, the cable connector 2 includes a quick-connect plug 7 and a quick-connect socket 8. The quick-connect socket 8 is installed on the housing 1 at a position communicating with the intrinsically safe cavity 4, and the wiring terminal of the quick-connect socket 8 is located inside the intrinsically safe cavity 4. The wiring terminal of the quick-connect socket 8 and the lower end of the explosion-proof terminal 6 are connected by an intrinsically safe cable. The quick-connect socket 8 includes a base plate 9 and a connecting post 10. A slot 20 is formed on the side of the connecting post 10 facing the quick-connect plug 7. Mounting holes 11 are formed on the four corners of the base plate 9, and fasteners pass through the mounting holes 11 to connect to the housing 1. A positioning block 12 protruding from the surface of the connecting post 10 is integrally formed on the side of the connecting post 10. A positioning groove 13 is formed on the outer side of the positioning block 12, and the positioning groove 13 penetrates the positioning block 12 on the side near the quick-connect plug 7. A snap-fit ​​block 14 is formed inside the positioning groove 13. There is a gap between the snap-fit ​​block 14 and the side wall of the positioning groove 13 away from the quick-connect plug 7. The side of the snap-fit ​​block 14 facing the quick-connect plug 7 is an inclined surface that slopes towards the bottom of the positioning groove 13 in the direction close to the quick-connect plug 7.

[0035] like Figure 3 As shown, the quick-connect plug 7 includes a connecting groove 15 that mates with the connecting post 10. The shape of the connecting groove 15 is adapted to the shapes of the connecting post 10 and the positioning block 12. A receiving groove 16 is formed on the side of the quick-connect plug 7, extending through the quick-connect socket 8. An operating button 17 is hinged within the receiving groove 16. A locking block 18 is formed at the end of the operating button 17 near the quick-connect socket 8, extending through the side wall of the quick-connect plug 7 and into the connecting groove 15. The width of the locking block 18 is equal to the width of the positioning groove 13. A first elastic element 19, preferably a spring, is provided between the end of the operating button 17 away from the quick-connect socket 8 and the bottom surface of the connecting groove 15 to provide thrust.

[0036] Specific usage process: When the cable needs to be connected, the quick plug 7 connected with the cable is inserted into the quick socket 8, the locking block 18 of the operation button 17 is in abutment with the inclined surface of the clamping block 14, the force of the first elastic member 19 is overcome, and the locking block 18 is reset when it reaches the position between the clamping block 14 and the side wall of the positioning groove 13 away from the side of the quick plug 7, and the locking block 18 and the clamping block 14 form a locking structure. When the cable needs to be disconnected, press the operation button 17 to unlock the locking block 18 and the clamping block 14, and then pull out the quick plug 7.

[0037] Since the quick socket 8 is installed on the shell 1 in communication with the intrinsic safety cavity 4, the explosion-proof structure of the explosion-proof cavity 3 is not damaged, and the cable used in the intrinsic safety cavity 4 is an intrinsic safety component, which meets the safety standard.

[0038] Example two: As shown in Figure 4 and Figure 5 The difference between this embodiment and example one is that the shell 1 is only provided with the explosion-proof cavity 3, the cable connector 2 includes the quick plug 7 and the quick socket 8, and the quick socket 8 is installed on the shell 1 in communication with the explosion-proof cavity 3. The quick socket 8 includes the bottom plate 9, the connecting column 10 and the threaded column 21, the first sealing gasket 22 is sleeved on the position of the threaded column 21 abutting the bottom plate 9, and when the threaded column 21 of the quick socket 8 is locked and installed through the shell 1 with the nut, the first sealing gasket 22 is pressed against the outer side wall of the shell 1 to form a sealing surface. The outer side of the connecting column 10 is formed with four track grooves 23, the depth of the track groove 23 is less than the wall thickness of the connecting column 10, and the track groove 23 includes an entering section 24 along the length direction of the connecting column 10, an inclined section 25 extending along the circumferential direction of the connecting column 10 from the end of the entering section 24, and a tail section 26 extending along the circumferential direction of the connecting column 10 from the end of the inclined section 25 away from the entering section 24.

[0039] As shown in Figure 4 and Figure 5As shown, the end of the quick plug 7 facing the quick socket 8 is formed with a limiting plate 27 slightly larger than the outer side of the quick plug 7, the side of the limiting plate 27 facing the quick socket 8 is formed with a plug post 28, the diameter of the plug post 28 is equal to the inner diameter of the plug groove 20, and the end of the plug post 28 away from the limiting plate 27 is rounded. The outer side of the plug post 28 is formed with an annular groove 29, the annular groove 29 is spaced from the end of the plug post 28, and a second sealing ring 30 is embedded in the annular groove 29. The inner side of the second sealing ring 30 is a circular hole, the outer side of the second sealing ring 30 is a truncated cone, and the side close to the limiting plate 27 is a large-diameter end, and the other end is a small-diameter end, the outer diameter of the small-diameter end is equal to the outer diameter of the plug post 28, and the outer side of the truncated cone is tapered by more than 1 degree and less than 5 degrees. The bottom surface of the annular groove 29 is continuously wavy from the perspective of the cross-sectional view, the height of each wave crest is equal and abuts the inner side wall of the second sealing ring 30, the wave starts from the side close to the limiting plate 27 to the direction away from the limiting plate 27, and the wave valley gradually increases, and the wave valley of the wave adjacent to the limiting plate 27 is the lowest point, that is, the position of the smallest diameter of the bottom surface of the annular groove 29.

[0040] As shown in Figure 4 and Figure 5 , the outer side of the quick plug 7 is sleeved with a sleeve ring 31, one end of the sleeve ring 31 is formed with a limiting ring 32, the inner diameter of the limiting ring 32 is smaller than the diameter of the limiting plate 27, so that the sleeve ring 31 cannot be pulled off from the quick plug 7. Four track locking blocks 33 are uniformly formed on the inner side of the other end of the sleeve ring 31, the track locking blocks 33 are used to be inserted into the track groove 23 and move along the track groove 23. The width of the track locking block 33 is smaller than the width of the track groove 23, and the side of the track locking block 33 close to the limiting ring 32 is a plane perpendicular to the length direction line of the quick plug 7, and the transition surface of the side of the track locking block 33 away from the limiting ring 32 is rounded.

[0041] Specific use process: When connecting the cable, the plug post 28 of the quick plug 7 is aligned and inserted into the plug groove 20 of the quick socket 8, at this time the second sealing ring 30 on the plug post 28 abuts the outer side wall of the plug groove 20, and the track locking block 33 enters the entering section 24 of the track groove 23. Continue to insert the quick plug 7, so that the track locking block 33 reaches the position where the entering section 24 and the inclined section 25 meet, and then start to rotate the sleeve ring 31, so that the track locking block 33 enters the tail section 26 along the inclined section 25. Since the inclined section 25 is arranged inclined along the circumference of the connecting column 10, the plug post 28 will be guided to continue to run into the plug groove 20 in this process, and a sealing surface is formed between the second sealing ring 30 and the side wall of the plug groove 20. The wave valley design of the bottom surface of the annular groove 29 allows the second sealing ring 30 to have a deformation accommodation space during the process of deforming into the plug groove 20, and finally forms an overall effective sealing surface and multiple tight annular fitting surfaces.

[0042] When the cable is pulled out, the sleeve 31 is rotated reversely, so that the track locking block 33 is pulled out of the track slot 23 to the position of the entry section 24, and then the quick connector 7 is pulled out. Since the second sealing ring 30 has a certain length, the second sealing ring 30 is still sealed with the insertion slot 20 when the electrical connection is disconnected during the pulling-out process, and the use is safer.

[0043] The above are preferred embodiments of the present application, and do not limit the protection scope of the present application, so: any equivalent changes made according to the structure, shape, principle of the present application should be covered within the protection scope of the present application.

Claims

1. A data transmission substation, characterized in that, Includes a housing (1) and a cable connector (2) connected to the housing (1). The cable connector (2) includes a quick-connect plug (7) and a quick-connect socket (8), the quick-connect socket (8) being connected to the housing (1).

2. The data transmission substation according to claim 1, characterized in that, The housing (1) includes an explosion-proof cavity (3) and an intrinsically safe cavity (4). An explosion-proof partition (5) is provided between the explosion-proof cavity (3) and the intrinsically safe cavity (4). An explosion-proof terminal block (6) is provided on the explosion-proof partition (5). The quick-connect socket (8) is connected to the intrinsically safe cavity (4).

3. The data transmission substation according to claim 2, characterized in that, The explosion-proof terminal (6) includes an upper end located in the explosion-proof cavity (3) and a lower end located in the intrinsically safe cavity (4), and the upper end and the lower end are connected by a conductor inside the explosion-proof terminal (6).

4. The data transmission substation according to claim 3, characterized in that, The quick-connect socket (8) terminals and the lower ends of the explosion-proof terminals (6) are connected by an intrinsically safe cable.

5. The data transmission substation according to claim 2, characterized in that, The quick-install socket (8) includes a base plate (9) and a connecting post (10). The base plate (9) is formed with multiple mounting holes (11), and is connected to the housing (1) by fasteners passing through the mounting holes (11).

6. The data transmission substation according to claim 5, characterized in that, The side of the connecting post (10) is integrally formed with a positioning block (12) protruding from the surface of the connecting post (10), and the outer side of the positioning block (12) is formed with a positioning groove (13); the quick-connect plug (7) includes a connecting groove (15) that mates with the connecting post (10), and the part of the quick-connect plug (7) located in the connecting groove (15) is provided with a locking block (18) with a width equal to the width of the positioning groove (13).

7. The data transmission substation according to claim 6, characterized in that, The positioning groove (13) extends through the positioning block (12) on the side near the quick-connect plug (7). A snap-fit ​​block (14) is formed inside the positioning groove (13). A gap is left between the snap-fit ​​block (14) and the side wall of the positioning groove (13) away from the quick-connect plug (7). The side of the snap-fit ​​block (14) facing the quick-connect plug (7) is an inclined surface that slopes towards the bottom of the positioning groove (13) in the direction of the quick-connect plug (7). A receiving groove is formed on the side of the quick-connect plug (7). 16) The receiving groove (16) passes through the quick-connect plug (7) on the side facing the quick-connect socket (8). An operating button (17) is hinged in the receiving groove (16). A locking block (18) is located at the end of the operating button (17) near the quick-connect socket (8), passing through the side wall of the quick-connect plug (7) and extending into the connecting groove (15). A first elastic element (19) providing thrust is provided between the end of the operating button (17) away from the quick-connect socket (8) and the bottom surface of the connecting groove (15).

8. The data transmission substation according to claim 7, characterized in that, The first elastic element (19) is preferably a spring.

9. The data transmission substation according to claim 1, characterized in that, The housing (1) is provided with an explosion-proof cavity (3), and the quick-connect socket (8) is connected to the explosion-proof cavity (3). The quick-connect socket (8) includes a base plate (9), a connecting post (10), and a threaded post (21). A first sealing gasket (22) is fitted on the threaded post (21) at the position where it fits against the base plate (9). The outer side of the connecting post (10) is formed with multiple track grooves (23). The depth of the track grooves (23) is less than the wall thickness of the connecting post (10). The track grooves (23) include the following: The connector (10) has an entry section (24) along its length, an inclined section (25) extending circumferentially from the end of the entry section (24) along the connector (10), and a stop section (26) extending circumferentially from the end of the inclined section (25) away from the entry section (24) along the connector (10); the connector (10) has a slot (20) formed on the side facing the quick-connect plug (7), and the quick-connect plug (7) has a limit formed at the end facing the quick-connect socket (8) with a size slightly larger than the outer side of the quick-connect plug (7). The positioning plate (27) has a pin (28) formed on the side facing the quick-connect socket (8). The diameter of the pin (28) is equal to the inner diameter of the slot (20), and the end of the pin (28) away from the positioning plate (27) is rounded. An annular groove (29) is formed on the outer side of the pin (28). A gap is left between the annular groove (29) and the end of the pin (28), and a second sealing ring (30) is embedded in the annular groove (29). A collar (31) is fitted on the outer side of the quick-connect plug (7). One end of the collar (31) is formed with a limiting ring (32), the inner diameter of the limiting ring (32) is smaller than the diameter of the limiting plate (27), and multiple track locking blocks (33) are evenly distributed on the inner side of the other end of the collar (31). The width of the track locking block (33) is smaller than the width of the track groove (23), and the side of the track locking block (33) near the limiting ring (32) is a plane perpendicular to the length direction line of the quick-connect plug (7), and the transition surface of the track locking block (33) away from the limiting ring (32) is rounded.

10. The data transmission substation according to claim 9, characterized in that, The inner side of the second sealing ring (30) is a circular through hole, and the outer side of the second sealing ring (30) is a frustum shape. The side closer to the limiting plate (27) is the large diameter end, and the other end is the small diameter end. The outer diameter of the small diameter end is equal to the outer diameter of the insert (28). The outer surface of the frustum has a taper greater than 1 degree and less than 5 degrees. The bottom surface of the annular groove (29) is a continuous wave shape when viewed from the cross-sectional perspective. The peak height of each wave is equal and abuts against the inner wall of the second sealing ring (30). The wave starts from the side closer to the limiting plate (27) and moves away from the limiting plate (27). The trough height gradually increases, and the trough of the wave adjacent to the limiting plate (27) is the lowest point.

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