Interface protection device

Abstract

The utility model relates to the technical field of signal generator protection, and discloses an interface protection device, which comprises a signal generator body and a protection shell bolted at the interface of the signal generator body, and further comprises a partition plate fixedly connected to the inner wall of the protection shell, and two socket grooves are formed in one side of the protection shell; according to the utility model, through the cooperation of the protection shell and the lifting mechanism, the baffle plate can automatically shield and cover the socket groove after the use of the device is finished, and the dustproof and liquid-proof protection effect can be provided for the interface of the signal generator body; according to the utility model, the clamping mechanism can clamp the connected cable joint, so that additional supporting and fixing effects are provided for the cable joint, the joint is more difficult to loosen and fall off from the interface of the signal generator body, and the reliability and the working efficiency of the signal generator body during use are improved.

Description

Technical Field

[0001] The utility model relates to the technical field of signal generator protection, in particular to an interface protection device. Background Art

[0002] A signal generator is an electronic device used to generate different types of electrical signals. It can generate various waveforms such as sine waves, square waves, pulses, etc., and has adjustable frequency, amplitude and phase. It plays an important role in electronic testing, audio and video equipment testing, teaching and research.

[0003] In order to facilitate the connection or configuration of cable connectors with other devices, most of the signal generator interfaces are currently exposed on the device surface. In actual use, the signal generator interface is easily exposed to dust, liquid or other contaminants, resulting in poor contact or even short circuit when the interface and the cable connector are plugged in, which not only causes damage to the device, but also increases the cost of maintenance;

[0004] At the same time, when most of the existing signal generator interfaces are plugged into the cable connector, if the connecting cable is accidentally pulled, it is easy to cause the interface and the cable plug to loosen or even fall off, which not only fails to transmit signals smoothly, affecting the normal operation of the equipment, but also the accidentally loose interface will cause abnormal interface voltage or current. The unstable cable connector connection will affect the normal use of the equipment, thereby reducing work efficiency. Utility Model Content

[0005] The purpose of the utility model is to provide an interface protection device to solve the problems raised in the above background technology.

[0006] To achieve the above object, the utility model provides the following technical solution: an interface protection device, comprising a signal generator body and a protection shell bolted to the interface thereof, and further comprising:

[0007] A partition fixedly connected to the inner wall of the protective shell, a socket slot is opened on one side of the protective shell, the number of the socket slots is two, a baffle is slidably connected to the inner wall of the protective shell, and a lifting mechanism is arranged on the surface of the baffle;

[0008] A first rail bolted to the inner wall of the protective shell, wherein the number of the first rails is two, an active rack plate is arranged above the first rail, a first groove is arranged at the bottom of the active rack plate, and the first groove is slidably connected to the surface of the first rail;

[0009] A gear meshingly connected to one side of the active rack plate, the other side of the gear meshingly connected to the passive rack plate, a second rail is arranged below the passive rack plate, the second rail is bolted to the inner wall of the protective shell, a second groove is provided at the bottom of the passive rack plate, and the second groove is slidably connected to the surface of the second rail;

[0010] Through grooves are symmetrically provided on both sides of the bottom of the protective shell, and a movable cavity is provided on one side of the inner cavity of the active rack plate, and a connecting rod is provided in the inner cavity of the movable cavity;

[0011] The clamping mechanism is used for clamping the cable joint, and the surface of the connecting rod is provided with a moving mechanism.

[0012] Preferably, the lifting mechanism includes an L-shaped plate fixedly connected to the top of the baffle and a sliding rod fixedly connected to the bottom of one side of the L-shaped plate, the inner wall of the protective shell is provided with a through hole, the sliding rod is slidably connected to the inner wall of the through hole, a compression spring is provided on the surface of the sliding rod, a sliding groove is provided at the bottom of the inner wall of the protective shell, and the baffle is slidably connected to the inner wall of the sliding groove.

[0013] Preferably, the moving mechanism includes a top plate fixedly connected to the top of the connecting rod and a mounting shell arranged on the surface of the connecting rod, the bottom end of the connecting rod passes through the bottom of the mounting shell and is slidably connected to its inner wall, the bottom of the protective shell and both sides of the through groove are bolted with connecting grooves, the top of the mounting shell is slidably connected to the inner wall of the connecting groove, both sides of the surface of the connecting rod are fixedly connected with claws, both sides of the inner wall of the through groove are provided with limiting teeth, the claws are used in conjunction with the limiting teeth, the surface of the connecting rod is fixedly connected with a circular plate, the bottom of the circular plate is provided with a compression spring, and the bottom end of the connecting rod is rotatably connected with a toggle block.

[0014] Preferably, the clamping mechanism includes a first support frame bolted to the top of the active rack plate and a second support frame bolted to the top of the passive rack plate, and the first support frame and the second support frame are fixedly connected to arc bars on the sides facing each other, and the number of the arc bars is two, and the positions of the arc bars on both sides are staggered.

[0015] Preferably, an observation frame made of transparent glass is embedded on the top of the protective shell.

[0016] Preferably, the number of the sliding rods and the number of the through holes are both two and they are symmetrically distributed around the center of the baffle.

[0017] Compared with the prior art, the beneficial effects of the utility model are as follows:

[0018] The utility model can realize automatic shielding and covering of the socket slot by the baffle plate after the use of the device through the cooperation of the protective shell and the lifting mechanism, thereby providing dustproof and liquid-proof protection effects for the interface of the signal generator body, thereby improving the stability and life of the interface of the signal generator body; at the same time, through the cooperation of the moving mechanism, the active rack plate, the gear and the passive rack plate, the clamping mechanism can clamp the connected cable connector, providing additional support and fixing effect for the cable connector, making it more difficult for the connector to loosen and fall off from the interface of the signal generator body, thereby ensuring stable signal transmission and improving the reliability and working efficiency of the signal generator body when in use. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a schematic diagram of the structure of the utility model;

[0020] Figure 2 It is a schematic diagram of the cross section of the protective shell and the unfolded structure of the baffle in the utility model;

[0021] Figure 3 For this utility model Figure 2 A schematic diagram of the enlarged structure at A in the middle;

[0022] Figure 4 It is a schematic diagram of the cross-sectional structure of the protective shell in the utility model;

[0023] Figure 5 It is a schematic diagram of the cross-sectional structure of the active rack plate in the utility model;

[0024] Figure 6 For this utility model Figure 5 A schematic diagram of the enlarged structure at B in the middle;

[0025] Figure 7 It is a schematic diagram of a local structure in the utility model;

[0026] Figure 8 It is a schematic diagram of the cross-sectional structure of the protective shell in the utility model;

[0027] Fig. 9 For this utility model Figure 8 Schematic diagram of the enlarged structure at point C in the middle.

[0028] In the figure: 1. signal generator body; 2. protective shell; 3. partition; 4. socket slot; 5. baffle; 6. lifting mechanism; 61. L-shaped plate; 62. slide rod; 63. through hole; 64. compression spring; 65. slide groove; 7. through groove; 8. moving mechanism; 81. top plate; 82. mounting shell; 83. toggle block; 84. compression spring; 85. round plate; 86. claw; 87. limit tooth; 88. connecting groove; 9. clamping mechanism; 91. first support frame; 92. second support frame; 93. arc bar; 10. observation frame; 11. connecting rod; 12. movable cavity; 13. gear; 14. active rack plate; 15. first groove; 16. first rail; 17. passive rack plate; 18. second groove; 19. second rail. DETAILED DESCRIPTION

[0029] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0030] See also Figure 1-9As shown, an interface protection device comprises a signal generator body 1, a protective shell 2 is arranged at the interface of the signal generator body 1, the protective shell 2 is bolted to the surface of the signal generator body 1, a partition 3 is fixedly connected to the inner wall of the protective shell 2, the partition 3 can divide the inner cavity of the protective shell 2 into two independent spaces, and a corresponding number of partitions 3 can be added according to the number of interfaces of the signal generator body 1, a socket slot 4 is opened on one side of the protective shell 2, the socket slot 4 corresponds to the position and number of the interface of the signal generator body 1, the connector of the cable can be extended into the inner cavity of the protective shell 2 through the socket slot 4, and it can be inserted into the interface of the signal generator body 1 for connection, an observation frame 10 is embedded in the top of the protective shell 2, the material of the observation frame 10 is transparent glass, the situation of the cable connector inside the protective shell 2 can be observed through the observation frame 10, so that the staff can more quickly and accurately plug the cable connector with the interface, and the inner wall of the protective shell 2 and the inner side of the socket slot 4 are slidably connected with a baffle 5, the baffle The size of the plate 5 is larger than that of the socket slot 4. The baffle 5 can cover the inner side of the socket slot 4. A lifting mechanism 6 is provided on the surface of the baffle 5. The lifting mechanism 6 cooperates with the baffle 5 to enable the baffle 5 to lift and slide on the inner side of the socket slot 4. When the baffle 5 covers the socket slot 4, it can effectively prevent dust and liquid from entering the inner cavity of the protective shell 2 through the socket slot 4, thereby protecting the interface of the signal generator body 1 from damage by dust, moisture and other external pollutants, thereby improving the reliability and life of the interface of the signal generator body 1. When it is necessary to plug in a cable connector, the baffle 5 can be lowered to the bottom of the socket slot 4 by the lifting mechanism 6. The baffle 5 will not hinder the cable connector from entering the inner cavity of the protective shell 2. After the cable connector is unplugged after use, the lifting mechanism 6 can automatically slide and lift the baffle 5, so that the baffle 5 covers the socket slot 4 again, and can continue to provide dust and liquid intrusion protection for the interface of the signal generator body 1.

[0031] The first rails 16 are symmetrically arranged on both sides of the inner cavity of the protective shell 2. The first rails 16 are bolted to the inner wall of the protective shell 2. The cross-sectional shape of the first rails 16 is trapezoidal. An active rack plate 14 is arranged above the first rail 16. A first groove 15 is provided at the bottom of the active rack plate 14. The first groove 15 corresponds to the shape of the first rail 16 and is slidably connected to each other. Under the restriction of the first groove 15 and the shape of the first rail 16 itself, the active rack plate 14 can slide along the surface of the first rail 16 without separation. One side of the active rack plate 14 is meshed with a gear 13. The top of the gear 13 is connected to the inner wall of the protective shell 2 through a rotating shaft. The passive rack plate 17 is connected to the inner wall of the protective shell 2 in a rotating manner, and the other side of the gear 13 is meshed with a passive rack plate 17. A second rail 19 is arranged below the passive rack plate 17. The second rail 19 is slidably connected to the inner wall of the protective shell 2. The second rail 19 has the same shape as the first rail 16. A second groove 18 is provided at the bottom of the passive rack plate 17. The second groove 18 corresponds to the shape of the second rail 19, and they are slidably connected to each other. When the active rack plate 14 moves on the surface of the first rail 16, the meshed gear 13 can drive the passive rack plate 17 to slide synchronously along the surface of the second rail 19. Through grooves 7 are symmetrically provided on both sides of the bottom of the protective shell 2. One side of the inner cavity of the active rack plate 14 An active cavity 12 is opened on the side, and the position of the active cavity 12 corresponds to the position of the through slot 7. The inner cavity of the active cavity 12 is provided with a connecting rod 11. The bottom end of the connecting rod 11 passes through the bottom of the active rack plate 14 and is slidably connected with the penetration point thereof. The cross-sectional shape of the connecting rod 11 is rectangular. Under the shape restriction of the connecting rod 11, the connecting rod 11 can be prevented from rotating in the active cavity 12. The bottom end of the connecting rod 11 extends to the bottom of the protective shell 2 through the through slot 7. A moving mechanism 8 is provided on the surface of the connecting rod 11. The active cavity 12, the connecting rod 11 and the through slot 7 are all used in conjunction with the moving mechanism 8 to push the active rack plate 14, and with the cooperation of the gear 13, the active rack plate can be moved. The active rack plate 14 and the passive rack plate 17 move synchronously toward or away from each other, and the moving mechanism 8 can also limit and lock the active rack plate 14 after moving it, so as to prevent the positions of the active rack plate 14 and the passive rack plate 17 from accidentally sliding. A clamping mechanism 9 is provided on the top of the active rack plate 14 and the passive rack plate 17. When the active rack plate 14 and the passive rack plate 17 move toward each other, the clamping mechanism 9 can clamp the surface of the cable connector to provide additional support and fixation, which can effectively reduce the loosening and separation between the interface of the cable connector and the signal generator body 1, thereby ensuring stable signal transmission and improving the reliability of the signal generator body 1 when in use.

[0032] The lifting mechanism 6 includes an L-shaped plate 61, which is fixedly connected to the top of the baffle 5. A slide bar 62 is fixedly connected to the bottom of one side of the L-shaped plate 61. There are two slide bars 62, which are symmetrically distributed at the center of the baffle 5. The inner wall of the protective shell 2 is provided with through holes 63. The number and position of the through holes 63 and the slide bars 62 correspond. The bottom end of the slide bar 62 extends to the bottom of the protective shell 2 through the through holes 63. The surface of the slide bar 62 is slidably connected to the inner wall of the through hole 63. The surface of the slide bar 62 is provided with a There is a compression spring 64, the top of the compression spring 64 contacts the L-shaped plate 61, the bottom of the compression spring 64 contacts the bottom of the inner wall of the protective shell 2, the inner wall of the protective shell 2 and below the baffle 5 are provided with a slide groove 65, the baffle 5 is slidably connected with the inner wall of the slide groove 65, the other side of the L-shaped plate 61 extends to the outside of the protective shell 2 through the socket groove 4 and is provided with a groove, the operator's finger can push it downward through the groove of the L-shaped plate 61, and when the L-shaped plate 61 drives the baffle 5 to move downward, the baffle 5 The plate 5 will slide downward to the bottom of the protective shell 2 through the slide groove 65 until one side of the L-shaped plate 61 abuts against the bottom of the inner wall of the socket groove 4. At the same time, the downward movement of the L-shaped plate 61 can compress the length of the compression spring 64 to store energy, and the sliding rod 62 can slide to the bottom of the protective shell 2 through the through hole 63. The sliding connection between the sliding rod 62 and the through hole 63 can not only prevent the compression spring 64 from bending when compressed, but also improve the stability of the baffle 5 when it is raised and lowered. At this time, the downward moving baffle 5 will not block the socket groove 4. The staff can extend the cable connector into the inner cavity of the protective shell 2 and plug it into the interface of the signal generator body 1. After use, the cable connector is pulled out to the outside of the protective shell 2. Under the elastic force of the compressed compression spring 64, the L-shaped plate 61 can drive the baffle 5 to automatically rise, so that it can cover the socket groove 4 again, and can prevent dust and liquid from entering the inner cavity of the protective shell 2 through the socket groove 4. The reliability and service life of the interface of the signal generator body 1 can be improved.

[0033] The moving mechanism 8 includes a top plate 81, which is fixedly connected to the top of the connecting rod 11. The top plate 81 can prevent the connecting rod 11 from detaching when sliding in the active cavity 12. A mounting shell 82 is provided on the surface of the connecting rod 11 and below the protective shell 2. The diameter of the mounting shell 82 is larger than the width of the through groove 7. The bottom end of the connecting rod 11 passes through the bottom of the mounting shell 82 and is slidably connected to its inner wall. The bottom of the protective shell 2 and both sides of the through groove 7 are bolted with connecting grooves 88. The top of the mounting shell 82 is a raised annular design. The top annular ring of the mounting shell 82 is slidably connected to the inner wall of the connecting groove 88. Under the sliding restriction between the top of the mounting shell 82 and the inner wall of the connecting groove 88, The mounting shell 82 can be moved along the bottom of the through slot 7, and the top of the mounting shell 82 can be prevented from being separated from the bottom of the protective shell 2. Claws 86 are fixedly connected on both sides of the surface of the connecting rod 11 and located above the circular plate 85. Limiting teeth 87 are provided on both sides of the inner wall of the through slot 7. The claws 86 are used in conjunction with the limiting teeth 87. When the claws 86 are inserted into the limiting teeth 87, the connecting rod 11 can be limited so that it will not move freely in the through slot 7. The surface of the connecting rod 11 and the inner cavity of the mounting shell 82 are fixedly connected with a circular plate 85. The circular plate 85 is slidably connected to the inner wall of the mounting shell 82. A compression spring 84 is provided at the bottom of the circular plate 85. The bottom end of the compression spring 84 is in contact with the inner wall of the mounting shell 82. The bottom of the inner wall of the mounting shell 82 is in contact, and the bottom end of the connecting rod 11 is connected to a toggle block 83 through a rotating shaft. The structure of the toggle block 83 is a rectangular shell-shaped design. By rotating the toggle block 83 so that its shorter side abuts against the bottom of the mounting shell 82, the connecting rod 11 can be pulled to move downward in the inner cavity of the mounting shell 82, so that the circular plate 85 compresses the compression spring 84 to store energy, and the downward moving connecting rod 11 can drive the claw 86 to move downward, so that it is out of the clamping state with the limiting tooth 87, and the top end of the connecting rod 11 will slide downward in the inner cavity of the active cavity 12. At this time, the staff can push the mounting shell 82 to make the connecting rod 11 drive the active rack plate 14 to move, and then the gear plate 86 can be pulled downward to move. When the wheel 13 is meshed with the active rack plate 14, the active rack plate 14 and the passive rack plate 17 can move synchronously toward or away from each other, so that the clamping mechanism 9 clamps or releases the cable connector. After the clamping mechanism 9 clamps the cable connector, the toggle block 83 is rotated to make its longer top abut against the bottom of the mounting shell 82, so that the compression spring 84 releases its elasticity, and the connecting rod 11 is driven to move upward through the circular plate 85, so that the claw 86 is upwardly engaged in the limiting tooth 87, so as to achieve the purpose of limiting the active rack plate 14, and prevent the positions of the active rack plate 14 and the passive rack plate 17 from accidentally sliding, thereby ensuring the stability of the clamping mechanism 9 in clamping the cable connector.

[0034] The clamping mechanism 9 includes a first support frame 91, the first support frame 91 is bolted to the top of the active rack plate 14, and the top of the passive rack plate 17 is bolted to the second support frame 92. The first support frame 91 and the second support frame 92 are fixedly connected to the opposite sides with arc bars 93. The number of the arc bars 93 is two, and the positions of the arc bars 93 on both sides are staggered. When the active rack plate 14 and the passive rack plate 17 move toward each other, the first support frame 91 and the second support frame 92 can move toward each other and make the arc bars on their tops close to each other. The arc bars 93 perform staggered contact and clamping on the surface of the cable connector, providing additional support and fixation for the cable connector, ensuring a stable connection between the cable connector and the interface of the signal generator body 1, and reducing the loosening or falling off of the cable connector under the influence of external force. When the cable connector needs to be released, it is only necessary to move the active rack plate 14 and the passive rack plate 17 in opposite directions through the moving mechanism 8, so that the arc bars 93 on both sides can be synchronously moved away from the cable connector, and the cable connector can be unplugged.

[0035] Working principle: the operator first holds the groove of the L-shaped plate 61 with his hand, so that it drives the baffle 5 to slide downward through the slide groove 65. At this time, the L-shaped plate 61 will compress the compression spring 64, and the slide rod 62 will slide from the through hole 63 to the bottom of the protective shell 2. The staff can extend the cable connector from the socket groove 4 into the inner cavity of the protective shell 2 and plug it into the interface of the signal generator body 1. After the equipment is used and the cable connector is unplugged, the compression spring 64 will release the elastic force, so that the L-shaped plate 61 drives the baffle 5 to automatically rise and cover the socket groove 4 again, which can prevent dust and liquid from entering the inner cavity of the protective shell 2 through the socket groove 4 and damaging the interface of the signal generator body 1. When it is necessary to fix the cable connector and the interface of the signal generator body 1, first rotate the toggle block 83 so that its shorter side abuts against the bottom of the mounting shell 82, so that the connecting rod 11 and the circular plate 85 can move downward in the mounting shell 82, allowing the circular plate 85 to compress the compression spring 84, and the downward moving connecting rod 11 can drive the claw 86 to disengage from the stop tooth 87. At this time, the staff can push the mounting shell 82 to make the connecting rod 11 drive the active rack plate 14 to move above the through slot 7. Under the meshing connection between the gear 13 and the active rack plate 14, the active rack plate 14 and the passive rack plate 17 can be synchronously approached, and the first support frame 91 and the second support frame 92 and the arc-shaped bars 93 on their tops can be moved toward each other, so that the arc-shaped bars 93 on both sides can staggeredly clamp the surface of the cable connector, which can be The cable connector provides additional support and fixing effect. Finally, the toggle block 83 is rotated so that its longer top abuts against the bottom of the mounting shell 82, which can release the elasticity of the compression spring 84, allowing the circular plate 85 to drive the connecting rod 11 to move upward, so that the claw 86 is clamped upward into the limit tooth 87 for limiting the position, which can achieve the effect of limiting the active rack plate 14 and limiting and locking the passive rack plate 17, thereby ensuring the stability of the arc bar 93 in clamping the cable connector, thereby reducing the loosening of the cable connector.

[0036] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, the elements defined by the sentence "comprise a ..." do not exclude the existence of other identical elements in the process, method, article or device including the elements.

[0037] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. An interface protection device, comprising a signal generator body (1) and a protective shell (2) bolted to the interface thereof, characterized in that: Also includes: A partition (3) is fixedly connected to the inner wall of the protective shell (2); a socket slot (4) is provided on one side of the protective shell (2); the number of the socket slots (4) is two; a baffle (5) is slidably connected to the inner wall of the protective shell (2); a lifting mechanism (6) is provided on the surface of the baffle (5); A first rail (16) bolted to the inner wall of the protective shell (2), the number of the first rails (16) being two, an active rack plate (14) being arranged above the first rail (16), a first groove (15) being arranged at the bottom of the active rack plate (14), the first groove (15) being slidably connected to the surface of the first rail (16); A gear (13) meshingly connected to one side of an active rack plate (14), the other side of the gear (13) meshingly connected to a passive rack plate (17), a second rail (19) being arranged below the passive rack plate (17), the second rail (19) being bolted to the inner wall of the protective shell (2), a second groove (18) being arranged at the bottom of the passive rack plate (17), the second groove (18) being slidably connected to the surface of the second rail (19); Through grooves (7) are symmetrically provided on both sides of the bottom of the protective shell (2); a movable cavity (12) is provided on one side of the inner cavity of the active rack plate (14); and a connecting rod (11) is provided in the inner cavity of the movable cavity (12); A clamping mechanism (9) is used for clamping a cable joint, and a moving mechanism (8) is arranged on the surface of the connecting rod (11).

2. An interface protection device according to claim 1, characterized in that: The lifting mechanism (6) comprises an L-shaped plate (61) fixedly connected to the top of the baffle (5) and a sliding rod (62) fixedly connected to the bottom of one side of the L-shaped plate (61); a through hole (63) is provided on the inner wall of the protective shell (2); the sliding rod (62) is slidably connected to the inner wall of the through hole (63); a compression spring (64) is provided on the surface of the sliding rod (62); a sliding groove (65) is provided at the bottom of the inner wall of the protective shell (2); and the baffle (5) is slidably connected to the inner wall of the sliding groove (65).

3. The interface protection device according to claim 1, characterized in that: The moving mechanism (8) comprises a top plate (81) fixedly connected to the top end of the connecting rod (11) and a mounting shell (82) arranged on the surface of the connecting rod (11); the bottom end of the connecting rod (11) passes through the bottom of the mounting shell (82) and is slidably connected to the inner wall thereof; the bottom of the protective shell (2) and both sides of the through groove (7) are bolted with connecting grooves (88); the top end of the mounting shell (82) is slidably connected to the inner wall of the connecting groove (88); claws (86) are fixedly connected to both sides of the surface of the connecting rod (11); limiting teeth (87) are arranged on both sides of the inner wall of the through groove (7); the claws (86) and the limiting teeth (87) are used in conjunction with each other; a circular plate (85) is fixedly connected to the surface of the connecting rod (11); a compression spring (84) is arranged at the bottom of the circular plate (85); and a toggle block (83) is rotatably connected to the bottom end of the connecting rod (11).

4. The interface protection device according to claim 1, characterized in that: The clamping mechanism (9) comprises a first support frame (91) bolted to the top of the active rack plate (14) and a second support frame (92) bolted to the top of the passive rack plate (17), and the first support frame (91) and the second support frame (92) are fixedly connected to arcuate bars (93) on the opposite sides, and the number of the arcuate bars (93) is two, and the positions of the arcuate bars (93) on both sides are staggered.

5. The interface protection device according to claim 1, characterized in that: An observation frame (10) made of transparent glass is embedded on the top of the protective shell (2).

6. An interface protection device according to claim 2, characterized in that: The number of the sliding rods (62) and the number of the through holes (63) are both two and they are symmetrically distributed around the center of the baffle (5).

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