Trailer lifting measuring bridge with rigid locking mechanism

Abstract

The utility model discloses a trailer lifting measuring bridge with rigid locking mechanisms, which comprises a measuring bridge and two mounting seats, the measuring bridge is arranged between the two mounting seats, each mounting seat is provided with a lifting mechanism and two guide rails, and the two ends of the measuring bridge are respectively provided with a locking mechanism; the locking mechanism comprises a connecting plate, a fixed block and a movable block, a fixed plate is arranged at one end of the fixed block, a cylinder is arranged on the fixed plate and is parallel to the side, facing the guide rail, of the fixed block, a cylinder piston rod penetrates through the fixed plate to be connected with the movable block, the movable block is in sliding fit with the fixed block, and the side, opposite to the fixed block, of the movable block is parallel to the guide rail; according to the trailer lifting measuring bridge with the rigid locking mechanism, the locking mechanism is adopted, after the measuring bridge moves to the testing height, the guide rail and the sliding block are automatically locked, the structure is simple, cost is low, use is convenient and fast, the measuring bridge is prevented from vibrating on the guide rail, and the experimental data collection precision is guaranteed.

Description

Technical Field

[0001] The utility model relates to the power supply technology, in particular to a trailer lifting measuring bridge with a rigid locking mechanism. Background Art

[0002] The lifting measuring bridge is a platform for connecting and fixing a trailer and experimental equipment. During experiments, it is necessary to conduct experiments at different water depths according to experimental requirements and different experimental equipment. Therefore, the measuring bridge must have the function of adjusting the height relative to the trailer.

[0003] In the past, the lifting measuring bridge only relied on the self-precision of the guide rail and the self-locking ability of the lead screw. However, there are tiny gaps between the guide rail and the slider itself, and the gaps between the lead screw and the guide rail will gradually increase with use and wear. In addition, the erosion of the humid environment on-site will also accelerate the wear of the lead screw and the guide rail. When the trailer is traveling at high speed or at a certain specific vibration frequency, the measuring bridge will generate large vibrations, thus affecting the accuracy of experimental data acquisition. Content of the Utility Model

[0004] To solve the defects of the above-mentioned prior art, the utility model provides a trailer lifting measuring bridge with a rigid locking mechanism. After the measuring bridge moves to the test height, the guide rail and the slider are automatically locked to prevent the measuring bridge from vibrating on the guide rail and ensure the accuracy of experimental data acquisition.

[0005] To achieve the above technical purpose, the utility model adopts the following technical scheme: a trailer lifting measuring bridge with a rigid locking mechanism, including a measuring bridge and two mounting seats. The measuring bridge is arranged between the two mounting seats. The mounting seat is provided with a lifting mechanism and two guide rails. The lifting mechanism is arranged in the middle of the mounting seat and is connected to the center of the end of the measuring bridge. The two guide rails are respectively arranged on both sides of the mounting seat. A slider is slidably matched on the guide rail. The two sliders are respectively arranged on both sides of the end of the measuring bridge. Locking mechanisms are arranged at both ends of the measuring bridge. The locking mechanism includes a connecting plate, a fixed block and a movable block. The connecting plate is fixed to the end of the side frame. The fixed block is fixed to the side of the connecting plate facing the guide rail. The side of the fixed block facing the guide rail is inclined. One end of the fixed block is provided with a fixing plate. A cylinder is arranged on the fixing plate. The cylinder is arranged parallel to the side of the fixed block facing the guide rail. The piston rod of the cylinder passes through the fixing plate and is connected to the movable block. The movable block is slidably matched with the fixed block. The side of the movable block relative to the fixed block is arranged parallel to the guide rail.

[0006] Preferably, a plurality of anti-slip stripes are arranged on the side of the movable block facing the guide rail.

[0007] Preferably, the side of the movable block facing the fixed block is inclined and arranged parallel to the side of the fixed block facing the guide rail.

[0008] Preferably, the side surface of the movable block facing the fixed block and the side surface of the fixed block facing the guide rail are both frosted surfaces.

[0009] Preferably, a guide groove is provided on the side of the fixed block facing the movable block, and a protrusion extending into the guide groove is provided on the side of the movable block facing the fixed block, and the protrusion is slidably engaged with the guide groove.

[0010] Preferably, the guide groove is a T-shaped groove, and the cross-section of the protrusion is T-shaped.

[0011] Preferably, the lifting mechanism includes a lead screw rotatably connected to the mounting base, the lead screw is arranged vertically, a motor is provided at the top of the lead screw, the motor drives the lead screw to rotate, a nut is threadedly engaged with the lead screw, and the nut is fixedly connected to the measuring bridge.

[0012] In summary, the present invention has achieved the following technical effects:

[0013] The trailer lifting measuring bridge with a rigid locking mechanism of the present invention adopts a locking mechanism. After the measuring bridge moves to the test height, the guide rail and the slider are automatically locked. The structure is simple, the cost is low, the use is convenient, the vibration of the measuring bridge on the guide rail is prevented, and the accuracy of experimental data collection is guaranteed. Description of the Drawings

[0014] Figure 1 is a schematic structural diagram of the trailer lifting measuring bridge with a rigid locking mechanism of the present invention;

[0015] Figure 2 is a side view of the trailer lifting measuring bridge with a rigid locking mechanism of the present invention;

[0016] Figure 3 is a schematic structural diagram of the locking mechanism of the trailer lifting measuring bridge with a rigid locking mechanism of the present invention;

[0017] Figure 4 is a half-sectional schematic diagram of the locking mechanism of the trailer lifting measuring bridge with a rigid locking mechanism of the present invention;

[0018] Figure 5 is a sectional view of the locking mechanism of the trailer lifting measuring bridge with a rigid locking mechanism of the present invention;

[0019] Explanation of the reference numerals in the drawings: 1. Mounting base; 2. Measuring bridge; 3. Locking mechanism; 31. Connecting plate; 32. Fixed block; 33. Fixed plate; 34. Cylinder; 35. Movable block; 36. Guide groove; 4. Motor; 5. Lead screw; 6. Nut; 7. Guide rail; 8. Slide block. Detailed Description of the Invention

[0020] The present invention will be further described in detail below with reference to the accompanying drawings.

[0021] This specific embodiment is only an interpretation of the present utility model and does not limit the present utility model. After reading this specification, those skilled in the art can make modifications to this embodiment without creative contributions as needed, but as long as it is within the scope of the claims of the present utility model, it is protected by the patent law.

[0022] In the description of the present utility model, it should be understood that the orientation or positional relationship indicated by the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc. is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of the present utility model.

[0023] In addition, the terms "first" and "second" are only used for descriptive purposes and cannot be understood as indicating or implying relative importance or implicitly specifying the quantity of the indicated technical features. Thus, the features defined with "first" and "second" may explicitly or implicitly include one or more of such features. In the description of the present utility model, the meaning of "a plurality" is two or more, unless otherwise specifically defined.

[0024] In the present utility model, unless otherwise clearly specified and defined, the terms "mounted", "connected", "connected to", "fixed", etc. should be understood in a broad sense. For example, it may be a fixed connection, a detachable connection, or integrated; it may be a mechanical connection or an electrical connection; it may be directly connected or indirectly connected through an intermediate medium, and it may be the internal communication of two elements or the interaction relationship between two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific circumstances.

[0025] In the present utility model, unless otherwise clearly specified and defined, the first feature being "on" or "under" the second feature may be that the first and second features are in direct contact, or the first and second features are indirectly in contact through an intermediate medium. Moreover, the first feature being "above", "over" and "on" the second feature may be that the first feature is directly above or obliquely above the second feature, or merely indicates that the first feature has a higher horizontal height than the second feature. The first feature being "under", "beneath" and "under" the second feature may be that the first feature is directly below or obliquely below the second feature, or merely indicates that the first feature has a lower horizontal height than the second feature.

[0026] Embodiment 1:

[0027] As shown in Figure 1 -2, a trailer lifting measuring bridge 2 with a rigid locking mechanism 3 includes a measuring bridge 2 and two mounting seats 1. The measuring bridge 2 is arranged between the two mounting seats 1. The mounting seat 1 is provided with a lifting mechanism and two guide rails 7. The lifting mechanism is arranged in the middle of the mounting seat 1 and is connected to the center of the end of the measuring bridge 2. The two guide rails 7 are vertically fixed on both sides of the mounting seat 1 respectively. A slider 8 is slidably matched on the guide rail 7. The two sliders 8 are respectively arranged on both sides of the end of the measuring bridge 2. Locking mechanisms 3 are provided at both ends of the measuring bridge 2;

[0028] For the trailer lifting measuring bridge 2 with a rigid locking mechanism 3 in this embodiment, the locking mechanism 3 is adopted. After the measuring bridge 2 moves to the test height, the guide rail 7 and the slider 8 are automatically locked. The structure is simple, the cost is low, and it is convenient to use, preventing the measuring bridge 2 from vibrating on the guide rail 7 and ensuring the accuracy of experimental data acquisition.

[0029] As shown in Figure 3 -5, the locking mechanism 3 includes a connecting plate 31, a fixed block 32 and a movable block 35. The connecting plate 31 is fixed to the end of the side frame. The fixed block 32 is fixed on the side of the connecting plate 31 facing the guide rail 7. The side of the fixed block 32 facing the guide rail 7 is inclined. One end of the fixed block 32 is provided with a fixing plate 33. A cylinder 34 is arranged on the fixing plate 33. The cylinder 34 is arranged parallel to the side of the fixed block 32 facing the guide rail 7. The piston rod of the cylinder 34 passes through the fixing plate 33 and is connected to the movable block 35. The movable block 35 is slidably matched with the fixed block 32. The side of the movable block 35 relative to the fixed block 32 is arranged parallel to the guide rail 7.

[0030] Among them, according to the size of the measuring bridge 2, a cylinder 34 or an oil cylinder with greater thrust can be selected, making its application range wider. Whether it is a cylinder 34 or an oil cylinder, it is very convenient to change the output force by changing the pressure of the gas source or the hydraulic source.

[0031] A number of anti-slip stripes are arranged on the side of the movable block 35 facing the guide rail 7; the side of the movable block 35 facing the fixed block 32 is inclined and is arranged parallel to the side of the fixed block 32 facing the guide rail 7; the side of the movable block 35 facing the fixed block 32 and the side of the fixed block 32 facing the guide rail 7 are both frosted surfaces; the settings of the anti-slip stripes and the frosted surfaces can both increase the roughness of the contact surface and increase the friction force, thereby improving the locking effect.

[0032] The fixed block 32 is provided with a guiding groove 36 on the side facing the movable block 35. The movable block 35 is provided with a protrusion extending into the guiding groove 36 on the side facing the fixed block 32. The protrusion is slidably matched with the guiding groove 36. The guiding groove 36 is a T-shaped groove, and the cross-section of the protrusion is T-shaped. The arrangement of the guiding groove 36 can guide the linear movement of the movable block 35 without swinging left and right.

[0033] The lifting mechanism includes a lead screw 5 rotatably connected to the mounting base 1. The lead screw 5 is arranged vertically. The top of the lead screw 5 is provided with a motor 4. The motor 4 drives the lead screw 5 to rotate. A nut 6 is in threaded fit with the lead screw 5. The nut 6 is fixedly connected to the measuring bridge 2.

[0034] Working principle: The locking mechanism 3 and the measuring bridge 2 are lifted together by the driving of the lifting mechanism. When the measuring bridge 2 reaches the predetermined height, the air cylinder 34 pushes the movable block 35 to move along the fixed block 32. Due to the contact surface being an inclined surface, the movable block 35 will contact the side surface of the guide rail 7 until it is locked. The two locking mechanisms 3 lock the two guide rails 7, thereby restricting the gap shaking generated between the measuring bridge 2 and the mounting base 1, and can eliminate the extra vibration of the measuring bridge 2 body caused by the gaps between the guide rail 7 and the slider 8 and between the lead screw 5 and the nut 6 to the greatest extent.

[0035] The above description is only a preferred embodiment of the present invention, and does not impose any form of limitation on the present invention. Any simple modification, equivalent change and modification made to the above embodiments based on the technical essence of the present invention are all within the scope of the technical solution of the present invention.

Claims

1. A trailer lifting bridge with a rigid locking mechanism, characterized in that: It comprises a measuring bridge and two mounting seats, wherein the measuring bridge is arranged between the two mounting seats, the mounting seats are provided with a lifting mechanism and two guide rails, the lifting mechanism is arranged in the middle of the mounting seats and connected to the center of the end of the measuring bridge, the two guide rails are respectively arranged on both sides of the mounting seats, the guide rails are slidably matched with sliders, the two sliders are respectively arranged on both sides of the end of the measuring bridge, and locking mechanisms are provided at both ends of the measuring bridge; The locking mechanism includes a connecting plate, a fixed block and a movable block, the connecting plate is fixed to the end of the side frame, the fixed block is fixed to the side of the connecting plate facing the guide rail, the fixed block is inclined toward the guide rail, a fixed plate is provided at one end of the fixed block, a cylinder is provided on the fixed plate, the cylinder and the fixed block are arranged parallel to the guide rail, the cylinder piston rod passes through the fixed plate and is connected to the movable block, the movable block is slidably matched with the fixed block, and the movable block is arranged parallel to the guide rail relative to one side of the fixed block.

2. The trailer lifting bridge with a rigid locking mechanism according to claim 1, characterized in that: The side surface of the movable block facing the guide rail is provided with a plurality of anti-slip stripes.

3. The trailer lifting bridge with a rigid locking mechanism according to claim 1, characterized in that: The movable block is arranged obliquely toward a side surface of the fixed block and is arranged parallel to a side surface of the fixed block toward a guide rail.

4. The trailer lifting bridge with a rigid locking mechanism according to claim 1, characterized in that: The side surface of the movable block facing the fixed block and the side surface of the fixed block facing the guide rail are both frosted surfaces.

5. The trailer lifting bridge with a rigid locking mechanism according to claim 1, characterized in that: A guide groove is provided on one side of the fixed block facing the movable block, and a protrusion extending into the guide groove is provided on one side of the movable block facing the fixed block, and the protrusion is slidably matched with the guide groove.

6. The trailer lifting bridge with a rigid locking mechanism according to claim 5, characterized in that: The guide groove is a T-shaped groove, and the cross section of the protrusion is T-shaped.

7. The trailer lifting bridge with a rigid locking mechanism according to claim 1, characterized in that: The lifting mechanism includes a screw rod rotatably connected to a mounting seat, the screw rod is vertically arranged, a motor is provided at the top of the screw rod, the motor drives the screw rod to rotate, a nut is threadedly matched on the screw rod, and the nut is fixedly connected to the measuring bridge.

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