Protection device of bridge load test vibration pickup

Abstract

The utility model relates to the technical field of bridge load tests, and discloses a protection device of a bridge load test vibration pickup, which comprises a vibration pickup and a protection component. According to the utility model, a bridge load test can be carried out through the vibration pickup, ultra-low frequency pulsation and large vibration measurement can be carried out on a bridge, a switch, a plug and a circuit can be protected through the protection assembly, the fixed block and the two plugging blocks can be connected and fixed through the positioning assembly, and the fixed block and the two plugging blocks can be separated through the movable assembly. The effects of protecting the switch, the plug and the circuit, preventing the joint of the circuit and the plug from being bent and damaged and preventing the plug and the socket from accidentally falling off are achieved, and the problems that the plug and the switch of the bridge load test vibration pickup are exposed outside, the plug is prone to accidentally falling off from the socket, the joint of the circuit and the plug is prone to being bent, and damage is caused are solved. And the protection effect is not good enough.

Description

Technical Field

[0001] The utility model belongs to the technical field of bridge load testing, and in particular relates to a protective device for a bridge load testing vibration pickup. Background Art

[0002] A bridge is an engineering structure that spans an obstacle and is used to connect two locations to facilitate the passage of people, vehicles or other means of transportation.

[0003] In order to evaluate the health and performance of the bridge, it is necessary to carry out load tests on the bridge to ensure that the actual bearing capacity of the bridge meets the design requirements, determine the actual bearing limit of the bridge, and test the dynamic and static responses of the bridge under various load conditions. The bridge load test vibration pickup can be used to measure ultra-low frequency pulsation and large vibration of the bridge, so as to understand the dynamic performance of the bridge and ensure its safety and durability. During the use of the existing bridge load test vibration pickup, the plug and switch of the bridge load test vibration pickup are often exposed to the outside, and the protection effect is not good enough. In addition, the plug is prone to accidentally detach from the socket, and the connection between the line and the plug is prone to bend, which affects the use effect. The problems existing in the above technology are: the plug and switch of the bridge load test vibration pickup are exposed to the outside, the plug is prone to accidentally detach from the socket, and the connection between the line and the plug is prone to bend, and the protection effect is not good enough. Utility Model Content

[0004] In view of the problems existing in the prior art, the utility model provides a protection device for a bridge load test vibration pickup which can overcome the above problems or at least partially solve the above problems.

[0005] The utility model is implemented as follows: a protective device for a bridge load test vibration pickup, comprising a vibration pickup and a protective component, the vibration pickup comprising a base, an output end, a switch, a socket, a plug and a circuit, the top of the base is fixedly connected to the bottom of the output end, the switch is installed on the front side of the top of the output end, the socket is installed on the rear side of the top of the output end, the bottom of the plug is plug-connected with the inside of the socket, the bottom of the circuit is fixedly connected with the top of the plug, the protective component is located at the top of the vibration pickup, the protective component comprises two protective shells, a stopper, two limit blocks and two long plates, the bottoms of the two limit blocks and the stoppers are fixedly connected to the top of the output end, the opposite ends of the two long plates are fixedly connected to the opposite sides of the two protective shells, and the surfaces of the two long plates are respectively slidably connected to the tops of the insides of the two limit blocks;

[0006] The vibration pickup is used for bridge load testing to measure ultra-low frequency pulsation and large vibration of the bridge;

[0007] The protection component is used to protect switches, plugs and lines.

[0008] In order to enable the two protective shells to be fixed to each other or opened and separated, preferably, the opposite ends of the two limit blocks are fixedly connected to the left and right sides of the stop block respectively, and the bottoms of the two protective shells are slidably connected to the tops of the two limit blocks and the stop block respectively, the left side of the top of the left protective shell is fixedly connected with a fixed block, and the top of the right protective shell is fixedly connected with two plug-in blocks, a cavity is opened inside the fixed block, and a connecting component and a movable component are respectively arranged inside the cavity, and the two protective shells can be connected and fixed to each other through the connecting component, so as to protect the switch, plug, socket and line, and the two protective shells can be opened and separated through the movable component, so as to use the switch, and the plug and line can be separated from the socket.

[0009] In order to connect and fix the fixed block to the two plug-in blocks, preferably, the connecting assembly includes two connecting blocks, two sliders, two rotating rods, two supporting blocks and multiple tension springs, the surfaces of the two sliders are movably connected to the inside of the cavity, the left sides of the two connecting blocks are respectively fixedly connected to the right sides of the two sliders, the sides of the multiple tension springs close to the inner wall of the cavity are respectively fixedly connected to the cavity, the sides of the multiple tension springs close to the two sliders are respectively fixedly connected to the two sliders, the sides opposite to the tops of the two rotating rods are respectively movably connected to the insides of the two sliders, and the opposite ends of the two rotating rods are respectively movably connected to the tops of the two supporting blocks, through the connecting assembly, the opposite sides of the two connecting blocks can be moved to the inside of the two plug-in blocks, and the multiple tension springs play a fixing and rebounding role, so that the two connecting blocks, the two sliders and the two rotating rods can automatically rebound to their original positions after moving.

[0010] In order to enable the fixed block and the two plug-in blocks to be separated, preferably, the movable component includes a movable block, a pull rod, an elastic spring and two extrusion blocks, the surfaces of the movable block, the pull rod and the two extrusion blocks are all movably connected to the inside of the cavity, the right side of the pull rod is fixedly connected to the left side of the movable block, the bottoms of the two extrusion blocks are respectively fixedly connected to the front and rear sides of the top of the movable block, the left side of the elastic spring is fixedly connected to the right side of the movable block, the right side of the elastic spring is fixedly connected to the right side of the inner wall of the cavity, the surfaces of the two extrusion blocks are respectively fitted with the right sides of the two rotating rods, and the two connecting blocks can be moved out from the inside of the two plug-in blocks through the movable component, and the elastic spring plays a fixing and rebounding role, so that the movable block, the pull rod and the two extrusion blocks can automatically rebound to their original positions after moving.

[0011] In order to control the moving range of the two sliders and the two connecting blocks, preferably, the left and right sides of the two sliders are slidably connected with control blocks, and one side of the multiple control blocks close to the inner wall of the cavity is fixedly connected to the cavity. Through the multiple control blocks, a limiting effect is played, so that the two sliders and the two connecting blocks can only move forward or backward, so that the movement effect is better.

[0012] In order to make the movable block, the pull rod and the two extrusion blocks move better, preferably, the front and rear sides of the movable block are fixedly connected with limiting blocks, the surfaces of the two limiting blocks are slidably connected with matching blocks, and the left sides of the two matching blocks are fixedly connected to the left side of the inner wall of the cavity. The two limiting blocks and the two matching blocks play a limiting role, so that the pull rod, the movable block and the two extrusion blocks can only move to the left or right inside the cavity, so that the movement effect of the movable block, the pull rod and the two extrusion blocks is better.

[0013] In order to avoid bending and damage at the connection between the circuit and the plug, preferably, the top of the plug can be fitted with the top of the inside of the two protective shells, and the rear sides of the opposite ends of the tops of the two protective shells are fixedly connected with clamping blocks, and the opposite ends of the two clamping blocks can be fitted with the surface of the circuit. The circuit can be wrapped by the opposite ends of the two clamping blocks to protect it, so that the circuit can be better used and prevented from loosening.

[0014] Compared with the prior art, the beneficial effects of the utility model are as follows:

[0015] The utility model is provided with structural components such as a vibration pickup, a base, an output terminal, a switch, a socket, a plug and a line. The vibration pickup can be used to perform a load test on a bridge, and ultra-low frequency pulsation and large vibration measurement of the bridge can be performed. The protection component can protect the switch, the plug and the line. The positioning component can connect and fix the fixing block with the two plug-in blocks, so that the two protective shells are fixed to each other. The movable component can separate the fixing block and the two plug-in blocks, so that the two protective shells are separated from each other. The two clamping blocks can prevent the connection between the line and the plug from being bent and damaged, thereby achieving the effect of protecting the switch, the plug and the line, preventing the connection between the line and the plug from being bent and damaged, and preventing the plug from accidentally falling off the socket. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic diagram of a three-dimensional structure provided by an embodiment of the utility model;

[0017] Figure 2 It is a three-dimensional structural diagram of two protective shells opened according to an embodiment of the utility model;

[0018] Figure 3 It is a three-dimensional structural diagram of a vibration pickup provided by an embodiment of the utility model;

[0019] Figure 4 It is a structural exploded view of the protection assembly provided by the embodiment of the utility model;

[0020] Figure 5 It is a top cross-sectional view of a fixing block provided by an embodiment of the utility model;

[0021] Figure 6 It is a detailed stereoscopic diagram of the local structure provided by the embodiment of the utility model.

[0022] In the figure: 1. vibration pickup; 101. base; 102. output terminal; 103. switch; 104. socket; 105. plug; 106. line; 2. protection component; 201. protection shell; 202. block; 203. limit block; 204. long board; 3. fixing block; 4. plug-in block; 5. cavity; 6. connecting component; 601. connecting block; 602. slider; 603. rotating rod; 604. supporting block; 605. tension spring; 7. movable component; 701. movable block; 702. pull rod; 703. elastic spring; 704. extrusion block; 8. control block; 9. limiting block; 10. matching block; 11. clamping block. DETAILED DESCRIPTION

[0023] In order to further understand the content, features and effects of the present invention, the following embodiments are given as examples and described in detail with reference to the accompanying drawings.

[0024] The structure of the utility model is described in detail below in conjunction with the accompanying drawings.

[0025] like Figures 1 to 6As shown, a protective device for a bridge load test vibration pickup provided by an embodiment of the utility model comprises a vibration pickup 1 and a protective assembly 2, wherein the vibration pickup 1 comprises a base 101, an output terminal 102, a switch 103, a socket 104, a plug 105 and a circuit 106, wherein the top of the base 101 is fixedly connected to the bottom of the output terminal 102, the switch 103 is mounted on the front side of the top of the output terminal 102, the socket 104 is mounted on the rear side of the top of the output terminal 102, the bottom of the plug 105 is plug-connected to the inside of the socket 104, the bottom of the circuit 106 is fixedly connected to the top of the plug 105, the protective assembly 2 is located at the top of the vibration pickup 1, and the protective assembly 2 comprises two protective shells 201, a stopper 202, two limit blocks 203 and two long plates 204. The bottoms of the two limit blocks 203 and the stopper 202 are fixedly connected to the top of the output end 102, the opposite ends of the two long plates 204 are fixedly connected to the opposite sides of the two protective shells 201, and the surfaces of the two long plates 204 are slidably connected to the tops of the two limit blocks 203; the vibration pickup 1 is used for bridge load testing to measure ultra-low frequency pulsation and large vibration of the bridge; the protection component 2 is used to protect the switch 103, the plug 105 and the line 106. In order to enable the two protective shells 201 to be fixed to each other or opened and separated, the opposite ends of the two limit blocks 203 are fixedly connected to the left and right sides of the stopper 202, and the bottoms of the two protective shells 201 are slidably connected to the tops of the two limit blocks 203 and the stopper 202, respectively. A fixed block 3 is fixedly connected to the left side of the top of the side protective shell 201, and two plug-in blocks 4 are fixedly connected to the top of the right protective shell 201. A cavity 5 is opened inside the fixed block 3, and a connecting component 6 and a movable component 7 are respectively arranged inside the cavity 5. The two protective shells 201 can be connected and fixed to each other through the connecting component 6, so as to protect the switch 103, the plug 105, the socket 104 and the line 106. The two protective shells 201 can be opened and separated through the movable component 7, so as to use the switch 103, and the plug 105 and the line 106 can be separated from the socket 104. In order to connect and fix the fixed block 3 with the two plug-in blocks 4, the connecting component 6 includes two connecting blocks 601, two sliders 602, two rotating rods 603, Two support blocks 604 and multiple tension springs 605, the surfaces of the two sliders 602 are movably connected to the inside of the cavity 5, the left sides of the two connecting blocks 601 are fixedly connected to the right sides of the two sliders 602, the sides of the multiple tension springs 605 close to the inner wall of the cavity 5 are fixedly connected to the cavity 5, the sides of the multiple tension springs 605 close to the two sliders 602 are fixedly connected to the two sliders 602, the opposite sides of the tops of the two rotating rods 603 are movably connected to the inside of the two sliders 602, the opposite ends of the inside of the two rotating rods 603 are movably connected to the tops of the two support blocks 604, through the connecting assembly 6, the opposite sides of the two connecting blocks 601 can be moved to the inside of the two plug-in blocks 4, and the multiple tension springs 605 play a fixing and rebounding role.The two connecting blocks 601, the two sliders 602 and the two rotating rods 603 can automatically rebound to their original positions after being moved. In order to separate the fixed block 3 and the two plug-in blocks 4, the movable assembly 7 includes a movable block 701, a pull rod 702, an elastic spring 703 and two extrusion blocks 704. The surfaces of the movable block 701, the pull rod 702 and the two extrusion blocks 704 are all movably connected to the inside of the cavity 5. The right side of the pull rod 702 is fixedly connected to the left side of the movable block 701. The bottoms of the two extrusion blocks 704 are respectively fixedly connected to the front and rear sides of the top of the movable block 701. The left side of the elastic spring 703 is fixedly connected to the right side of the movable block 701. The right side of the elastic spring 703 is fixedly connected to the right side of the inner wall of the cavity 5, and the surfaces of the two extrusion blocks 704 are respectively fitted with the right sides of the two rotating rods 603. Through the movable component 7, the two connecting blocks 601 can be moved out from the inside of the two plug-in blocks 4. The elastic spring 703 plays a fixing and rebounding role, so that the movable block 701, the pull rod 702 and the two extrusion blocks 704 can automatically rebound to the original position after moving. In order to control the moving range of the two sliders 602 and the two connecting blocks 601, the left and right sides of the two sliders 602 are slidably connected with control blocks 8, and the side of multiple control blocks 8 close to the inner wall of the cavity 5 is The two control blocks 8 are fixedly connected to the cavity 5, and play a limiting role through multiple control blocks 8, so that the two sliders 602 and the two connecting blocks 601 can only move forward or backward, so that the moving effect is better. In order to make the movable block 701, the pull rod 702 and the two extrusion blocks 704 move better, the front and rear sides of the movable block 701 are fixedly connected with limiting blocks 9, and the surfaces of the two limiting blocks 9 are slidably connected with matching blocks 10. The left sides of the two matching blocks 10 are fixedly connected to the left side of the inner wall of the cavity 5. Through the two limiting blocks 9 and the two matching blocks 10, they all play a limiting role, so that the pull rod 702, the movable block 701 and the two extrusion blocks 704 can move better. 4 can only move to the left or right inside the cavity 5, so that the movable block 701, the pull rod 702 and the two extrusion blocks 704 can move better. In order to avoid bending and damage at the connection between the line 106 and the plug 105, the top of the plug 105 can fit with the top of the inside of the two protective shells 201. The rear sides of the opposite ends of the tops of the two protective shells 201 are fixedly connected with clamping blocks 11. The opposite ends of the two clamping blocks 11 can fit with the surface of the line 106. The opposite ends of the two clamping blocks 11 can wrap the line 106 to play a protective role, so that the line 106 can be used better and avoid looseness.

[0026] The working principle of this utility model:

[0027] When the two protective shells 201 need to be separated, the pull rod 702 is pulled to move to the left and the movable block 701 is moved to the left. The movement of the movable block 701 will cause the two extrusion blocks 704 to move to the left. When the two extrusion blocks 704 move, the two rotating rods 603 are squeezed and rotated, so that the two rotating rods 603 rotate with the two supporting blocks 604 as the center of the circle, and the left sides of the two rotating rods 603 rotate toward the opposite ends, so that the two sliders 602 drive the two connecting blocks 601 to move toward the opposite ends, so that the two connecting blocks 601 are moved out from the inside of the two plug-in blocks 4. At this time, the two protective shells 201 can be moved in opposite directions, so that the switch 103 can be used, and the plug 105 can be separated or connected with the socket 104;

[0028] When the two protective shells 201 need to be fixed, the movement of the movable block 701 will cause the elastic spring 703 to deform. After the pull rod 702 is released, the elastic action of the elastic spring 703 will cause the movable block 701 to drive the pull rod 702 and the two extrusion blocks 704 to rebound to their original positions. The movement of the two sliders 602 will cause the multiple tension springs 605 to deform. When the pull rod 702 is released, the elastic action of the multiple tension springs 605 will cause the two sliders 602 to drive the two connecting blocks 601 to rebound to the inside of the two plug-in blocks 4, and cause the two rotating rods 603 to rebound to their original positions, thereby realizing the connection and fixation of the two protective shells 201.

[0029] 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.

[0030] The above description is only a preferred embodiment of the utility model, and does not constitute any form of limitation to the utility model. Although the utility model has been disclosed as a preferred embodiment as above, it is not used to limit the utility model. Any technician familiar with this patent will not depart from the scope of the technical solution of the utility model.

Claims

1. A protection device for a bridge load test vibration pickup, comprising a vibration pickup (1) and a protection component (2), characterized in that: The vibration pickup (1) comprises a base (101), an output end (102), a switch (103), a socket (104), a plug (105) and a circuit (106); the top of the base (101) is fixedly connected to the bottom of the output end (102); the switch (103) is installed on the front side of the top of the output end (102); the socket (104) is installed on the rear side of the top of the output end (102); the bottom of the plug (105) is plug-connected to the inside of the socket (104); the bottom of the circuit (106) is fixedly connected to the top of the plug (105); The protective component (2) is located at the top of the vibration pickup (1), and comprises two protective shells (201), a stopper (202), two limit blocks (203) and two long plates (204); the bottoms of the two limit blocks (203) and the stopper (202) are fixedly connected to the top of the output end (102); the opposite ends of the two long plates (204) are respectively fixedly connected to the opposite sides of the two protective shells (201); and the surfaces of the two long plates (204) are respectively slidably connected to the tops inside the two limit blocks (203); The vibration pickup (1) is used for bridge load testing to measure ultra-low frequency pulsation and large vibration of the bridge; The protection component (2) is used to protect the switch (103), the plug (105) and the line (106).

2. A protection device for a bridge load test vibration pickup as claimed in claim 1, characterized in that: The opposite ends of the two limit blocks (203) are respectively fixedly connected to the left and right sides of the stop block (202); the bottoms of the two protective shells (201) are respectively slidably connected to the tops of the two limit blocks (203) and the stop block (202); a fixed block (3) is fixedly connected to the left side of the top of the left protective shell (201); two plug-in blocks (4) are fixedly connected to the top of the right protective shell (201); a cavity (5) is provided inside the fixed block (3); and a connecting component (6) and a movable component (7) are respectively provided inside the cavity (5).

3. A protection device for a bridge load test vibration pickup as claimed in claim 2, characterized in that: The connection assembly (6) comprises two connection blocks (601), two sliders (602), two rotating rods (603), two support blocks (604) and a plurality of tension springs (605); the surfaces of the two sliders (602) are movably connected to the inside of the cavity (5); the left sides of the two connection blocks (601) are respectively fixedly connected to the right sides of the two sliders (602); the sides of the plurality of tension springs (605) close to the inner wall of the cavity (5) are respectively fixedly connected to the cavity (5); the sides of the plurality of tension springs (605) close to the two sliders (602) are respectively fixedly connected to the two sliders (602); the opposite sides of the tops of the two rotating rods (603) are respectively movably connected to the insides of the two sliders (602); and the opposite ends inside the two rotating rods (603) are respectively movably connected to the tops of the two support blocks (604).

4. A protection device for a bridge load test vibration pickup as claimed in claim 3, characterized in that: The movable assembly (7) comprises a movable block (701), a pull rod (702), an elastic spring (703) and two extrusion blocks (704); the surfaces of the movable block (701), the pull rod (702) and the two extrusion blocks (704) are all movably connected to the inside of the cavity (5); the right side of the pull rod (702) is fixedly connected to the left side of the movable block (701); the bottoms of the two extrusion blocks (704) are respectively fixedly connected to the front and rear sides of the top of the movable block (701); the left side of the elastic spring (703) is fixedly connected to the right side of the movable block (701); the right side of the elastic spring (703) is fixedly connected to the right side of the inner wall of the cavity (5); and the surfaces of the two extrusion blocks (704) are respectively in contact with the right sides of the two rotating rods (603).

5. The protective device for a bridge load test vibration pickup as claimed in claim 3, characterized in that: The left and right sides of the two sliding blocks (602) are slidably connected to control blocks (8), and the sides of the multiple control blocks (8) close to the inner wall of the cavity (5) are fixedly connected to the cavity (5).

6. A protection device for a bridge load test vibration pickup as claimed in claim 4, characterized in that: The movable block (701) is fixedly connected to limiting blocks (9) on both the front and rear sides, the surfaces of the two limiting blocks (9) are slidably connected to matching blocks (10), and the left sides of the two matching blocks (10) are fixedly connected to the left side of the inner wall of the cavity (5).

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