A substation digital control network signal testing device and its use method

Abstract

The present invention discloses a substation digital control network signal test device and a method of using the same, including a network signal tester, a handle rotatably installed on the outside of the network signal tester, a protective shell cover rotatably installed on the end of the network signal tester, a data line for the network signal tester is arranged inside the protective shell cover, a hook is fixedly connected to the inner wall of the protective shell cover, a wire clamping assembly is arranged inside the protective shell cover, a protective block is symmetrically fixedly connected to the end of the network signal tester, a locking assembly is arranged inside the protective shell cover, and the locking assembly forms a linkage with the wire clamping assembly. The present invention utilizes a configuration method in which the network signal tester, the protective shell cover, the wire clamping assembly, the protective block and the locking assembly are matched, and under the action of the wire clamping assembly, the protective shell cover can store the data line, and under the action of the protective block and the locking assembly, the protective shell cover can shield and protect the end of the network signal tester.

Description

Technical Field

[0001] The invention relates to the field of substation signal testing, and in particular to a substation digital control network signal testing device and a use method thereof. Background Art

[0002] When testing the CNC network signal of a substation, a network signal tester is usually used to test it. A network signal tester is a device used to measure, analyze and diagnose the quality and performance of network signals. It is usually used in various types of network environments such as computer networks, wireless networks, wired networks, telephone networks, etc.

[0003] When testing the CNC network signal of a substation, in order to facilitate the carrying of the network signal tester, a handle is usually installed on the outside of the network signal tester, and the network signal tester can be carried using the handle. The display page, control buttons and wiring ports on the network signal tester are usually located at the end of the network signal tester. Therefore, when the network signal tester is carried using the handle, the end face of the network signal tester may collide with external objects, thereby causing damage to the components on the end face of the network signal tester. In addition, when the network signal tester is testing some equipment, it is also necessary to use a data cable to connect to the equipment. Therefore, only a handle is installed on the outside of the network signal tester, which is not convenient for protecting the components at the end of the network signal tester and storing the data cable. Summary of the invention

[0004] The object of the present invention is to provide a substation digital control network signal testing device and a use method thereof to solve the problems raised in the above background technology.

[0005] To achieve the above object, the present invention provides the following technical solutions: a substation digital control network signal test device, comprising a network signal tester, wherein a handle is rotatably mounted on the outside of the network signal tester;

[0006] A protective shell cover is rotatably installed on the end of the network signal tester, a data cable for the network signal tester is arranged inside the protective shell cover, a hook for hanging the data cable is fixedly connected to the inner wall of the protective shell cover, a wire clamping assembly for binding the data cable is arranged inside the protective shell cover, a protective block is symmetrically fixedly connected to the end of the network signal tester, a locking assembly is arranged inside the protective shell cover, the locking assembly cooperates with the protective block to lock the protective shell cover, and the locking assembly and the wire clamping assembly form a linkage.

[0007] Preferably, the wire clamping assembly comprises:

[0008] A connecting frame and a locking block, wherein the connecting frame is arranged inside the protective shell cover, the locking block is fixedly connected to the side of the connecting frame, and the locking block forms a linkage with the locking assembly;

[0009] A first fixed block, a second fixed block and a connecting shaft, wherein the first fixed block is fixedly connected to the inside of the protective shell cover, the connecting shaft is fixedly connected to the side of the connecting frame through the second fixed block, and the outer wall of the connecting shaft is rotatably interlaced and sleeved with the first fixed block;

[0010] The restraining assembly is arranged outside the connecting frame.

[0011] Preferably, the locking assembly comprises:

[0012] A fixed shell, the fixed shell being fixedly connected to the inside of the protective shell cover;

[0013] A connecting rod and a locking plate, wherein the connecting rod is slidably arranged inside the fixed housing, the locking plate is fixedly connected to the outside of the connecting rod, and the side of the outer wall of the locking plate is slidably engaged with the protective block;

[0014] An unlocking assembly is arranged at the end of the connecting rod and is located outside the protective shell cover.

[0015] Preferably, a connecting groove matching the fixed shell is provided on the front of the protective block, a groove matching the locking plate is provided on the top of the front of the protective block, one side of the locking block is fitted with the inner wall of the groove, a locking groove is provided at the bottom of the inner wall of the groove, the outer wall of the locking plate is slidably engaged with the locking groove, a chamfer is provided on the side of the locking block, and the locking plate is provided with an inclined slope facing the side of the locking block.

[0016] Preferably, a guide hole is opened on the side of the fixed shell, the outer wall of the locking plate is slidably connected with the inner cavity of the guide hole, the interior of the fixed shell is fixedly connected with a limiting ring, one end of the outer wall of the connecting rod passes through the limiting ring and is fixedly connected with a fixing ring, the outer wall of the connecting rod is slidably connected with a positioning spring, and the positioning spring is located between the fixing ring and the limiting ring.

[0017] Preferably, the unlocking component comprises:

[0018] A connecting plate, the connecting plate being arranged outside the protective shell cover;

[0019] The other end of the outer wall of the connecting rod passes through the protective shell cover and the connecting plate and is rotatably interlaced and sleeved with the knob;

[0020] A positioning plate, the end of which is fixedly connected to the protective shell cover, the outer wall of the positioning plate is slidably inserted and sleeved with the connecting plate, and the positioning plate is located on the side of the knob.

[0021] Preferably, the outer wall of the knob is symmetrically provided with mounting grooves, the inner cavity of the mounting groove is slidably sleeved with a positioning block, the positioning plate is provided with a slot on the side facing the knob, the side of the inner wall of the slot is provided with a chamfer, one end of the positioning block is arc-shaped, one end of the outer wall of the positioning block is slidably sleeved with the inner cavity of the slot, the interior of the mounting groove is symmetrically provided with extrusion springs acting on the positioning block, the bottom of the knob is threadedly connected with an inner bolt, the top of the positioning block is provided with a limiting hole, and the outer wall of the inner bolt is slidably sleeved with the inner cavity of the limiting hole.

[0022] Preferably, the restraint assembly comprises:

[0023] A mounting frame and a connecting frame, wherein the connecting frame is fixedly connected to an end of the mounting frame and the connecting frame is sleeved on an outer wall of the connecting frame;

[0024] A restraining plate and a sponge plate, wherein the restraining plate is slidably arranged inside the mounting frame, and the sponge plate is fixedly connected to the bottom of the restraining plate;

[0025] A first fixed rod, a limit block and a limit spring, wherein the top of the first fixed rod is fixedly connected to the mounting frame, the first fixed rod passes through the binding plate and is fixedly connected to the limit block, the limit spring is sleeved on the outer wall of the first fixed rod, and the limit spring is located at the top of the binding plate.

[0026] Preferably, a sliding hole is provided at the top of the side of the mounting bracket, and the inner cavity of the sliding hole is slidably connected to a fixing bracket, the outer wall of the first fixing rod is slidably inserted and sleeved with the fixing bracket, the limit spring is located at the bottom of the fixing bracket, and the side of the bottom of the fixing bracket is fixedly connected to a second fixing rod, the outer wall of the second fixing rod is slidably inserted and sleeved with the connecting frame, the top of the connecting bracket is provided with a connecting hole matching the second fixing rod, the bottom of the second fixing rod is fixedly connected to a third fixing block, the bottom of the connecting frame is provided with a hole matching the third fixing block, the top of the third fixing block is symmetrically fixedly connected to the limiting rod, and the bottom of the connecting bracket is provided with a limiting groove, and the outer wall of the limiting rod is slidably engaged with the inner cavity of the limiting groove.

[0027] The present invention also provides a method for using a substation digital control network signal testing device, comprising the following specific steps:

[0028] Step 1: When using the network signal tester to test the digital control network signal of the substation equipment, first use the handle to carry the network signal tester to the detection position, then open the protective shell cover to take out the data cable, and use the data cable to connect the network signal tester to the substation equipment, so as to use the network signal tester to test the network signal of the substation equipment;

[0029] Step 2: When opening the protective shell cover, first turn the knob to make the knob drive the positioning block to rotate, so that the positioning block is separated from the positioning plate, and use the connecting plate and the knob to drive the connecting rod to move, and the connecting rod drives the locking plate to slide, so that the locking plate slides and separates from the locking groove on the protective block, and the locking plate slides into the slot of the protective block. At this time, the locking plate is located between the locking block and the protective block, and the protective shell cover can be rotated to open;

[0030] Step 3: When the protective shell cover is rotated to open, the locking plate locks the connecting frame by engaging the locking block. Release the connecting plate. Under the action of the positioning spring, the connecting rod drives the locking plate to reset, and the locking plate slides and separates from the locking block. At this time, rotate the connecting frame, and the connecting frame drives the mounting frame and the binding plate to rotate and separate from the data cable. Then the data cable can be taken out for use.

[0031] Technical effects and advantages of the present invention:

[0032] (1) The present invention utilizes a network signal tester, a protective shell cover, a wire clamping assembly, a protective block and a locking assembly in a coordinated arrangement. Under the action of the wire clamping assembly, the protective shell cover can store the data line, and under the action of the protective block and the locking assembly, the protective shell cover can shield and protect the end of the network signal tester, and the locking assembly can also lock the wire clamping assembly;

[0033] (2) The present invention utilizes a setting method of a wire clamping assembly, which includes a connecting frame, a locking block and a binding assembly. The connecting frame can be linked with the locking assembly through the locking block, and when the locking assembly locks the connecting frame to a limited position, the binding assembly can clamp and bind the data line inside the protective housing, and the binding assembly on the connecting frame can be adjusted according to the position of the data line binding;

[0034] (3) The present invention utilizes a setting method in which a locking assembly and a protective block are coordinated. The locking assembly includes a fixed shell, a connecting rod, a locking plate and an unlocking assembly. When the locking plate is engaged with the protective block, the closed protective shell cover can be locked. The unlocking assembly can drive the locking plate to separate from the protective block through the connecting rod, so that the protective shell cover can be opened. The unlocking assembly has a locking function to avoid accidental unlocking by external contact. BRIEF DESCRIPTION OF THE DRAWINGS

[0035] Figure 1 It is a schematic diagram of the overall structure of the present invention.

[0036] Figure 2 This is a schematic diagram of the overall structure of the protective shell cover of the present invention when it is opened.

[0037] Figure 3 It is a schematic diagram of the overall structure of the wire clamping assembly of the present invention.

[0038] Figure 4It is a schematic diagram of the overall structure of the protection block of the present invention.

[0039] Figure 5 It is a schematic diagram of the internal structure of the protective shell cover part of the present invention.

[0040] Figure 6 This is a schematic diagram of the internal structure of the knob of the present invention from the front.

[0041] Figure 7 It is a schematic diagram of the internal structure of the knob of the present invention from top view.

[0042] Figure 8 This is a schematic diagram of the internal structure of the installation part on the side of the present invention.

[0043] Fig. 9 It is a schematic diagram of the internal structure of the connecting frame side of the present invention.

[0044] In the figure: 1, network signal tester; 2, handle; 3, protective shell cover; 4, data line; 5, hook; 6, wire clamp assembly; 61, connecting frame; 62, first fixing block; 63, second fixing block; 64, connecting shaft; 65, locking block; 66, restraint assembly; 661, mounting frame; 662, connecting frame; 663, restraint plate; 664, sponge plate; 665, first fixing rod; 666, limit block; 667, limit spring; 668, fixing frame; 669, sliding hole; 6610, second fixing rod; 6611, The third fixed block; 6612, the limiting rod; 7, the protective block; 8, the locking assembly; 81, the fixed shell; 82, the connecting rod; 83, the locking plate; 84, the unlocking assembly; 841, the connecting plate; 842, the knob; 843, the positioning plate; 844, the positioning block; 845, the slot; 846, the mounting slot; 847, the extrusion spring; 848, the limiting hole; 849, the inner bolt; 85, the connecting slot; 86, the slot; 87, the locking slot; 88, the guide hole; 89, the limiting collar; 810, the fixing collar; 811, the positioning spring. DETAILED DESCRIPTION

[0045] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0046] The present invention provides Figure 1-9A substation numerical control network signal test device shown in the figure includes a network signal tester 1, a handle 2 is rotatably installed on the outside of the network signal tester 1, a protective shell cover 3 is rotatably installed on the end of the network signal tester 1, a data line 4 for the network signal tester 1 is arranged inside the protective shell cover 3, a hook 5 for hanging the data line 4 is fixedly connected to the inner wall of the protective shell cover 3, the data line 4 can be hung and wound around the outside of the hook 5, and a clamping assembly 6 for restraining the data line 4 is arranged inside the protective shell cover 3, and the clamping assembly 6 can improve the stability of the data line 4 stored inside the protective shell cover 3 The ends of the network signal tester 1 are symmetrically fixedly connected with protective blocks 7, and a locking assembly 8 is arranged inside the protective shell cover 3. The locking assembly 8 cooperates with the protective block 7 to lock the protective shell cover 3. Under the action of the locking assembly 8, the protective shell cover 3 can shield and protect the ends of the network signal tester 1 to prevent the ends from being damaged by collision when it is carried, and when the protective shell cover 3 is opened, the two protective blocks 7 can also protect the ends of the network signal tester 1 to reduce the probability of the ends of the network signal tester 1 directly colliding with objects and being damaged. The locking assembly 8 is linked with the wire clamping assembly 6.

[0047] Furthermore, the wire clamping assembly 6 includes a connecting frame 61, a locking block 65, a first fixed block 62, a second fixed block 63, a connecting shaft 64 and a binding assembly 66. The connecting frame 61 is arranged inside the protective shell cover 3, the locking block 65 is fixedly connected to the side of the connecting frame 61, the locking block 65 and the locking assembly 8 form a linkage, the first fixed block 62 is fixedly connected to the inside of the protective shell cover 3, the connecting shaft 64 is fixedly connected to the side of the connecting frame 61 through the second fixed block 63, the outer wall of the connecting shaft 64 is rotatably interlaced and sleeved with the first fixed block 62, the binding assembly 66 is arranged on the outside of the connecting frame 61, the connecting frame 61 can be rotatably installed inside the protective shell cover 3 through the connecting shaft 64, when the connecting frame 61 is rotated and closed, the binding assembly 66 can squeeze and bind the data cable 4 inside the protective shell cover 3, and the connecting frame 61 can be rotated to open to release the binding of the data cable 4, so that the data cable 4 can be taken out or stored.

[0048] Furthermore, the restraint assembly 66 includes a mounting frame 661, a connecting frame 662, a restraint plate 663, a sponge plate 664, a first fixing rod 665, a limit block 666 and a limit spring 667. The connecting frame 662 is fixedly connected to the end of the mounting frame 661, the connecting frame 662 is sleeved on the outer wall of the connecting frame 61, the restraint plate 663 is slidably arranged inside the mounting frame 661, the sponge plate 664 is fixedly connected to the bottom of the restraint plate 663, the top of the first fixing rod 665 is fixedly connected to the mounting frame 661, and the first fixing rod 665, the limit block 666 and the limit spring 667 at the bottom of the mounting frame 661 are all two in number, and the first fixing rod 665 The restraining plate 663 is fixedly connected with the limit block 666, the limit spring 667 is sleeved on the outer wall of the first fixing rod 665, the limit spring 667 is located at the top of the restraining plate 663, and the limit spring 667 can give the restraining plate 663 an elastic extrusion force, so that the sponge plate 664 at the bottom of the restraining plate 663 squeezes and restrains the data line 4, a sliding hole 669 is opened on the top of the side of the mounting frame 661, and the inner cavity of the sliding hole 669 is slidably connected with the fixing frame 668, the outer wall of the first fixing rod 665 is slidably inserted and sleeved with the fixing frame 668, the limit spring 667 is located at the bottom of the fixing frame 668, and the side of the bottom of the fixing frame 668 is fixedly connected with the second fixing rod 661 0, the outer wall of the second fixing rod 6610 is slidably inserted and sleeved with the connecting frame 662, the top of the connecting frame 61 is provided with a connecting hole matching the second fixing rod 6610, the bottom of the second fixing rod 6610 is fixedly connected with the third fixing block 6611, the bottom of the connecting frame 662 is provided with a hole matching the third fixing block 6611, the top of the third fixing block 6611 is symmetrically fixedly connected with the limiting rod 6612, the bottom of the connecting frame 61 is provided with a plurality of limiting grooves, the outer wall of the limiting rod 6612 is slidably engaged with the inner cavity of the limiting groove, and the limiting spring 667 is sufficient to support the fixing frame 668, the second fixing rod 6610, the third fixing block 6611 and the limiting By reducing the weight of the positioning rod 6612, under the action of the limiting spring 667, the fixing frame 668 can drive the third fixing block 6611 and the limiting rod 6612 to be in a stable state through the second fixing rod 6610, thereby making the limiting rod 6612 in a stable state and engaging with the limiting groove at the bottom of the connecting frame 61, and squeezing the fixing frame 668 downward, the fixing frame 668 can drive the limiting rod 6612 to separate from the limiting groove at the bottom of the connecting frame 61 through the second fixing rod 6610 and the third fixing block 6611, so that the connecting frame 662 can slide relative to the connecting frame 61, thereby changing the working position of the mounting frame 661, the restraining plate 663 and the sponge plate 664.

[0049] In particular, the locking assembly 8 includes a fixed shell 81, a connecting rod 82, a locking plate 83 and an unlocking assembly 84. The fixed shell 81 is fixedly connected to the inside of the protective shell cover 3, the connecting rod 82 is slidably arranged inside the fixed shell 81, the locking plate 83 is fixedly connected to the outside of the connecting rod 82, the side of the outer wall of the locking plate 83 is slidably engaged with the protective block 7, the unlocking assembly 84 is arranged at the end of the connecting rod 82, and the unlocking assembly 84 is located outside the protective shell cover 3. The front side of the protective block 7 is provided with a connecting groove 85 matching the fixed shell 81, so that when the protective shell cover 3 is closed, the fixed shell 81 can be connected with the connecting groove 85 on the protective block 7, and the front side of the protective block 7 A slot 86 matching the locking plate 83 is provided at the top, one side of the locking block 65 fits with the inner wall of the slot 86, a locking slot 87 is provided at the bottom of the inner wall of the slot 86, and the outer wall of the locking plate 83 is slidably engaged with the locking slot 87, so that the locking plate 83 is engaged with the locking slot 87 on the protective block 7, and the distance between the fixed shell 81 and the protective block 7 can be locked, thereby locking the protective shell cover 3, and the side of the locking block 65 is provided with a chamfer, and the locking plate 83 is provided with an inclined slope on the side facing the locking block 65, that is, the side of the inclined slope on one side of the locking plate 83 is located between the arc chamfer of the locking block 65 and the inner wall of the slot 86 on the protective block 7, so that when the sliding lock When the fixing plate 83 is separated from the locking groove 87 on the protective block 7, the locking plate 83 can slide between the locking block 65 and the protective block 7 under the action of the inclined surface on one side of the locking plate 83 and the arc chamfer on the side of the locking block 65 until the locking plate 83 is completely separated from the locking groove 87. At this time, the locking plate 83 and the locking block 65 are both located inside the slot 86, so that the protective shell cover 3 is rotated to open, and the locking plate 83 and the locking block 65 can be separated from the protective block 7. The locking plate 83 squeezes and limits the locking block 65, which can ensure the stability of the connecting frame 61 inside the protective shell cover 3, thereby preventing the connecting frame 61 and the restraining assembly 66 from coming out when the protective shell cover 3 is opened or closed. The data line 4 is loosened, causing it to loosen and fall off. A guide hole 88 is provided on the side of the fixed shell 81. The outer wall of the locking plate 83 is slidably connected with the inner cavity of the guide hole 88. The interior of the fixed shell 81 is fixedly connected with a limiting ring 89. One end of the outer wall of the connecting rod 82 passes through the limiting ring 89 and is fixedly connected with a fixing ring 810. The outer wall of the connecting rod 82 is slidably connected with a positioning spring 811. The positioning spring 811 is located between the fixing ring 810 and the limiting ring 89. The positioning spring 811 can give an elastic force to the connecting rod 82 through the fixing ring 810, so that the connecting rod 82 drives the locking plate 83 to be in a stable state and engage with the locking groove 87.

[0050] The lock 842 is provided with a locking plate 845 which is provided on the side of the locking plate 843 and the locking plate 846 which is provided on the side of the locking plate 846. The side of the inner wall of the groove 845 is chamfered, and one end of the positioning block 844 is arc-shaped. One end of the outer wall of the positioning block 844 is slidably engaged with the inner cavity of the slot 845. Therefore, by rotating the knob 842, the knob 842 can drive the positioning block 844 to separate or engage with the slot 845 on the positioning plate 843. The interior of the mounting groove 846 is symmetrically provided with an extrusion spring 847 acting on the positioning block 844. The extrusion spring 847 can give the positioning block 844 an elastic force, so that the positioning block 844 and the slot 845 on the positioning plate 843 maintain a stable engaged state. The bottom of the knob 842 is threadedly connected with an internal bolt 849, and the top of the positioning block 844 is provided with a limiting hole 848. The outer wall of the internal bolt 849 is slidably sleeved with the inner cavity of the limiting hole 848. The internal bolt 849 can limit the positioning block 844 to prevent the positioning block 844 from directly sliding and separating from the knob 842 under the action of the extrusion spring 847.

[0051] The present invention also provides a method for using a substation digital control network signal testing device, comprising the following specific steps:

[0052] When using the network signal tester 1 to test the numerical control network signal of the substation equipment, first use the handle 2 to carry the network signal tester 1 to the detection position, then open the protective shell cover 3 to take out the data cable 4, and use the data cable 4 to connect the network signal tester 1 to the substation equipment, so as to use the network signal tester 1 to test the network signal of the substation equipment;

[0053] When opening the protective shell cover 3, first turn the knob 842 so that the knob 842 drives the positioning block 844 to rotate, so that the positioning block 844 is separated from the positioning plate 843, and the connecting plate 841 and the knob 842 are used to drive the connecting rod 82 to move, and the connecting rod 82 drives the locking plate 83 to slide, so that the locking plate 83 slides and separates from the locking groove 87 on the protective block 7, and the locking plate 83 slides into the slot 86 of the protective block 7. At this time, the locking plate 83 is located between the locking block 65 and the protective block 7, and the protective shell cover 3 can be rotated to open;

[0054] When the protective shell cover 3 is rotated to open, the locking plate 83 locks the connecting frame 61 by engaging the locking block 65, and the connecting plate 841 is released. Under the action of the positioning spring 811, the connecting rod 82 drives the locking plate 83 to reset, and the locking plate 83 slides and separates from the locking block 65. At this time, the connecting frame 61 is rotated, and the connecting frame 61 drives the mounting frame 661 and the binding plate 663 to rotate and separate from the data cable 4, so that the data cable 4 can be taken out for use. Repeat the above steps in reverse to store the data cable 4 inside the protective shell cover 3, and close the protective shell cover 3 to protect the end of the network signal tester 1.

[0055] Finally, it should be noted that the above is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, it is still possible for those skilled in the art to modify the technical solutions described in the aforementioned embodiments or to make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A digital control network signal test device for a substation, comprising a network signal tester (1), wherein a handle (2) is rotatably mounted on the outside of the network signal tester (1); It is characterized in that A protective shell cover (3) is rotatably mounted on the end of the network signal tester (1), a data line (4) for the network signal tester (1) is arranged inside the protective shell cover (3), a hook (5) for hanging the data line (4) is fixedly connected to the inner wall of the protective shell cover (3), a wire clamping assembly (6) for binding the data line (4) is arranged inside the protective shell cover (3), a protective block (7) is symmetrically fixedly connected to the end of the network signal tester (1), a locking assembly (8) is arranged inside the protective shell cover (3), the locking assembly (8) cooperates with the protective block (7) to lock the protective shell cover (3), and the locking assembly (8) forms a linkage with the wire clamping assembly (6); The wire clamping assembly (6) comprises: A connecting frame (61) and a locking block (65), wherein the connecting frame (61) is arranged inside the protective shell cover (3), the locking block (65) is fixedly connected to the side of the connecting frame (61), and the locking block (65) forms a linkage with the locking assembly (8); A first fixed block (62), a second fixed block (63) and a connecting shaft (64), wherein the first fixed block (62) is fixedly connected to the inside of the protective shell cover (3), the connecting shaft (64) is fixedly connected to the side of the connecting frame (61) through the second fixed block (63), and the outer wall of the connecting shaft (64) is rotatably interlaced and sleeved with the first fixed block (62); A restraining assembly (66), wherein the restraining assembly (66) is arranged outside the connecting frame (61); The locking assembly (8) comprises: A fixed shell (81), wherein the fixed shell (81) is fixedly connected to the inside of the protective shell cover (3); A connecting rod (82) and a locking plate (83), wherein the connecting rod (82) is slidably arranged inside the fixed housing (81), and the locking plate (83) is fixedly connected to the outside of the connecting rod (82), and the side of the outer wall of the locking plate (83) is slidably engaged with the protective block (7); An unlocking component (84), wherein the unlocking component (84) is arranged at the end of the connecting rod (82), and the unlocking component (84) is located outside the protective shell cover (3). The front of the protective block (7) is provided with a connecting groove (85) matching the fixed shell (81), and the top of the front of the protective block (7) is provided with a groove (86) matching the locking plate (83). One side of the locking block (65) is in contact with the inner wall of the groove (86), and the bottom of the inner wall of the groove (86) is provided with a locking groove (87). The outer wall of the locking plate (83) is slidably engaged with the locking groove (87), and the side of the locking block (65) is provided with a chamfer, and the locking plate (83) is provided with an inclined slope toward one side of the locking block (65).

2. A substation digital control network signal testing device according to claim 1, characterized in that: A guide hole (88) is provided on the side of the fixed shell (81); the outer wall of the locking plate (83) is slidably connected to the inner cavity of the guide hole (88); the interior of the fixed shell (81) is fixedly connected to a limiting ring (89); one end of the outer wall of the connecting rod (82) passes through the limiting ring (89) and is fixedly connected to a fixing ring (810); the outer wall of the connecting rod (82) is slidably connected to a positioning spring (811); the positioning spring (811) is located between the fixing ring (810) and the limiting ring (89).

3. A substation digital control network signal testing device according to claim 2, characterized in that: The unlocking assembly (84) comprises: A connecting plate (841), wherein the connecting plate (841) is arranged outside the protective shell cover (3); A knob (842), the other end of the outer wall of the connecting rod (82) passes through the protective shell cover (3) and the connecting plate (841) and is rotatably interlaced and sleeved with the knob (842); A positioning plate (843), the end of which is fixedly connected to the protective shell cover (3), the outer wall of the positioning plate (843) is slidably inserted and sleeved with the connecting plate (841), and the positioning plate (843) is located on the side of the knob (842).

4. A substation digital control network signal testing device according to claim 3, characterized in that: The outer wall of the knob (842) is symmetrically provided with mounting grooves (846), and the inner cavity of the mounting groove (846) is slidably sleeved with a positioning block (844). The positioning plate (843) is provided with a slot (845) on the side facing the knob (842), and the side of the inner wall of the slot (845) is chamfered. One end of the positioning block (844) is arc-shaped, and one end of the outer wall of the positioning block (844) is slidably sleeved with the inner cavity of the slot (845). The interior of the mounting groove (846) is symmetrically provided with an extrusion spring (847) acting on the positioning block (844). The bottom of the knob (842) is threadedly connected with an inner bolt (849), and the top of the positioning block (844) is provided with a limiting hole (848), and the outer wall of the inner bolt (849) is slidably sleeved with the inner cavity of the limiting hole (848).

5. A substation digital control network signal testing device according to claim 1, characterized in that: The tie down assembly (66) comprises: A mounting frame (661) and a connecting frame (662), wherein the connecting frame (662) is fixedly connected to an end of the mounting frame (661), and the connecting frame (662) is sleeved on an outer wall of the connecting frame (61); A restraining plate (663) and a sponge plate (664), wherein the restraining plate (663) is slidably disposed inside the mounting frame (661), and the sponge plate (664) is fixedly connected to the bottom of the restraining plate (663); A first fixed rod (665), a limit block (666) and a limit spring (667), wherein the top of the first fixed rod (665) is fixedly connected to the mounting frame (661), the first fixed rod (665) passes through the restraining plate (663) and is fixedly connected to the limit block (666), the limit spring (667) is sleeved on the outer wall of the first fixed rod (665), and the limit spring (667) is located at the top of the restraining plate (663).

6. A substation digital control network signal testing device according to claim 5, characterized in that: A sliding hole (669) is provided at the top of the side of the mounting frame (661), and the inner cavity of the sliding hole (669) is slidably connected to a fixing frame (668), the outer wall of the first fixing rod (665) is slidably inserted and sleeved with the fixing frame (668), the limit spring (667) is located at the bottom of the fixing frame (668), and the side of the bottom of the fixing frame (668) is fixedly connected to a second fixing rod (6610), and the outer wall of the second fixing rod (6610) is slidably inserted and sleeved with the connecting frame (662). A connecting hole matching the second fixing rod (6610) is provided at the top of the frame (61); a third fixing block (6611) is fixedly connected to the bottom of the second fixing rod (6610); a hole matching the third fixing block (6611) is provided at the bottom of the connecting frame (662); a limiting rod (6612) is symmetrically fixedly connected to the top of the third fixing block (6611); a limiting groove is provided at the bottom of the connecting frame (61); an outer wall of the limiting rod (6612) is slidably engaged with an inner cavity of the limiting groove.

7. A method for using a substation digital control network signal testing device according to any one of claims 1 to 6, characterized in that: The specific usage steps are as follows: Step 1: When using the network signal tester (1) to test the digital control network signal of the substation equipment, first use the handle (2) to carry the network signal tester (1) to the detection position, then open the protective shell cover (3) to take out the data cable (4), and use the data cable (4) to connect the network signal tester (1) to the substation equipment, so as to use the network signal tester (1) to test the network signal of the substation equipment; Step 2: When opening the protective shell cover (3), first turn the knob (842) so that the knob (842) drives the positioning block (844) to rotate, so that the positioning block (844) is separated from the positioning plate (843), and the connecting plate (841) and the knob (842) are used to drive the connecting rod (82) to move, and the connecting rod (82) drives the locking plate (83) to slide, so that the locking plate (83) slides and separates from the locking groove (87) on the protective block (7), and the locking plate (83) slides into the groove (86) of the protective block (7). At this time, the locking plate (83) is located between the locking block (65) and the protective block (7), and the protective shell cover (3) can be rotated to open; Step 3: When the protective shell cover (3) is rotated to open, the locking plate (83) locks the connecting frame (61) by engaging the locking block (65), and the connecting plate (841) is released. Under the action of the positioning spring (811), the connecting rod (82) drives the locking plate (83) to reset, and the locking plate (83) slides and separates from the locking block (65). At this time, the connecting frame (61) is rotated, and the connecting frame (61) drives the mounting frame (661) and the binding plate (663) to rotate and separate from the data cable (4), so that the data cable (4) can be taken out for use.

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