CN213422787U - Clamping device for detecting clamping performance of bridge expansion device - Google Patents
Clamping device for detecting clamping performance of bridge expansion device Download PDFInfo
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- CN213422787U CN213422787U CN202022437046.3U CN202022437046U CN213422787U CN 213422787 U CN213422787 U CN 213422787U CN 202022437046 U CN202022437046 U CN 202022437046U CN 213422787 U CN213422787 U CN 213422787U
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Abstract
The utility model discloses a clamping device for detecting bridge telescoping device clamping performance, include: the supporting platform is provided with a long hole, and a guide rail is arranged below the supporting platform; the two sides of the sliding block are respectively provided with a sliding chute, the sliding block is arranged on the guide rail in a sliding mode through the sliding chutes, the sliding block is provided with a screw hole, an adjusting screw rod is connected with the screw hole in a threaded mode, and the adjusting screw rod is movably arranged in the strip hole in a penetrating mode; the lower end clamp is positioned above the supporting platform and is rotationally connected with the end part of the adjusting screw rod; the upper end clamp is movably connected with the lower end clamp, adjusting screw holes are respectively formed in two sides of the upper end clamp and a side plate connected with the lower end clamp, and clamping bolts are connected in the adjusting screw holes in a threaded manner; and the connecting rod is fixedly arranged on the side plate connected with the upper end clamp and the lower end clamp. The utility model discloses have firm centre gripping performance to the bridge telescoping device, can adjust the centre gripping interval simultaneously and detect in order to satisfy the centre gripping to not unidimensional bridge telescoping device.
Description
Technical Field
The utility model belongs to the technical field of bridge telescoping device check out test set, more specifically says, the utility model relates to a clamping device for detecting bridge telescoping device clamping performance.
Background
The bridge expansion device, also called a bridge expansion joint, is a device that is usually installed between two beam ends, between a beam end and a bridge abutment, or at the hinge joint of a bridge in order to meet the requirement of bridge deck deformation. The telescopic device is required to be freely telescopic in two directions parallel to and perpendicular to the axis of the bridge, and is firm and reliable, and when a vehicle runs, the vehicle is smooth and free of sudden jump and noise; the blocking of rainwater and garbage soil is prevented; the installation, the inspection, the maintenance and the dirt elimination are all simple and convenient. At the position of the expansion joint, the handrail and the bridge deck pavement are disconnected. The bridge expansion device mainly comprises: galvanized sheet steel telescoping devices, steel telescoping devices and rubber telescoping devices; the rubber expansion device is made of rubber as a seam crossing material, and is simple in structure, convenient to use and good in effect. A rubber and steel plate combined telescopic device can be adopted on a large-span bridge with large deformation.
For a rubber sealing belt bridge expansion device combining rubber and a steel plate, a detection device is needed to detect the clamping performance of the bridge expansion device, and a detection arrangement schematic diagram is shown in fig. 4: clamping a rubber sealing bag bridge expansion device between two deformed steels 1, applying a loading force with the speed of 0.05 kN/s-0.10 kN/s to the two deformed steels by using a universal material testing machine, loading a horizontal force to 0.2kN, stretching the rubber sealing belt bridge expansion device by using the two deformed steels, wherein the loading duration is 15min, and observing whether the rubber sealing belt falls off or generates fine cracks; then unloading at a continuous and uniform speed until no horizontal force exists, and standing for 5 min; and repeating the steps. The loading process is continuously carried out for 3 times, and if the falling off and the fine cracks of the rubber sealing belt do not occur in the 3 times of clamping performance tests, the clamping performance of the rubber sealing belt 3 meets the composite requirement. Therefore, at present, deformed steel is mainly used as a clamp to clamp the rubber sealing strip bridge expansion device, the clamping stability of the deformed steel clamp to the rubber sealing strip bridge expansion device is not high enough, and the clamping interval can not be adjusted, so that the rubber sealing strip bridge expansion device with different sizes can not be clamped, and the use limitation is large. Therefore, a special clamping device is needed, which can improve the stability of clamping the rubber sealing strip bridge expansion device and can meet the requirements of clamping the bridge expansion devices with different sizes.
SUMMERY OF THE UTILITY MODEL
An object of the present invention is to solve at least the above problems and/or disadvantages and to provide at least the advantages which will be described later.
In order to achieve these objects and other advantages in accordance with the purpose of the invention, a clamping device for detecting clamping performance of a bridge expansion device is provided, comprising:
the supporting platform is provided with a long hole, and a guide rail is fixedly arranged below the supporting platform;
the two sides of the sliding block are respectively provided with a sliding chute, the sliding block is arranged on the guide rail in a sliding mode through the sliding chutes, the sliding block is provided with a screw hole, an adjusting screw rod is connected to the screw hole in a threaded mode, and the adjusting screw rod is movably arranged in a long hole of the supporting platform in a penetrating mode;
the lower end clamp is positioned above the supporting platform and is rotationally connected with the end part of the adjusting screw rod; the upper end clamp is movably connected with the lower end clamp, adjusting screw holes are respectively formed in two sides of the upper end clamp and a side plate connected with the lower end clamp, and clamping bolts are connected in the adjusting screw holes in a threaded mode;
the connecting rod is fixedly arranged on a side plate of the upper end clamp connected with the lower end clamp;
and the vertical plate of the lower end clamp is movably connected with the side plate of the upper end clamp.
Preferably, wherein the lower end jig has a structure including:
the lower end limiting plate, the horizontal plate and the vertical plate are fixedly arranged into a whole;
and the limiting cylinder is arranged in the vertical plate.
Preferably, wherein, the curb plate that upper end anchor clamps and lower extreme anchor clamps meet is the notch cuttype structure, and fixes being provided with spacing post on the terminal surface of notch cuttype structure, the cover is equipped with spacing spring on the spacing post, spacing spring upper end and notch cuttype structure's terminal surface fixed connection, spacing spring's lower extreme and the spacing section of thick bamboo terminal surface fixed connection of lower extreme anchor clamps.
Preferably, an upper end limiting plate is arranged on the upper end clamp, and the upper end limiting plate is positioned right above a lower end limiting plate of the lower end clamp; and the gap between the upper end limiting plate and the lower end limiting plate is a transverse groove for placing the bridge expansion device.
Preferably, the two support platforms are oppositely arranged, and a workbench for supporting the bridge expansion device is arranged between the two support platforms.
Preferably, a support plate is fixedly arranged outside the guide rail, one end of the support plate is fixedly connected with the guide rail, and the other end of the support plate is fixedly connected with the support platform.
Preferably, a triangular supporting piece is fixedly arranged between the limiting cylinder and the horizontal plate.
The utility model discloses at least, include following beneficial effect: the utility model provides a clamping device for detecting bridge telescoping device clamping performance is through setting up swing joint's upper end anchor clamps and lower extreme anchor clamps to rotating on the lower extreme anchor clamps and being connected accommodate the lead screw, can adjusting the interval of upper end anchor clamps and lower extreme anchor clamps through rotating accommodate the lead screw, thereby change the centre gripping interval, in order to satisfy the centre gripping detection to not unidimensional bridge telescoping device; meanwhile, the utility model arranges the limiting cylinder on the lower end clamp, arranges the limiting post rod on the upper end clamp, and sleeves the limiting spring on the limiting post, so that the upward movement of the lower end clamp is more stable when the distance between the upper end clamp and the lower end clamp is adjusted by rotating the adjusting screw rod; the limiting spring provides certain elastic force and has the buffer protection effect on the lower end clamp and the upper end clamp; the structure setting of upper end anchor clamps and lower extreme anchor clamps also makes the centre gripping to bridge telescoping device more firm.
Additional advantages, objects, and features of the invention will be set forth in part in the description which follows and in part will become apparent to those having ordinary skill in the art upon examination of the following or may be learned from practice of the invention.
Description of the drawings:
fig. 1 is a schematic structural view of a clamping device for detecting the clamping performance of a bridge expansion device provided by the present invention;
fig. 2 is a schematic view of the upper end clamp and the lower end clamp provided by the present invention when clamping the bridge expansion device;
fig. 3 is a schematic structural view of an upper end clamp and a lower end clamp provided by the present invention;
fig. 4 is a schematic diagram illustrating a conventional method for detecting clamping performance of a bridge expansion device by using deformed steel.
The specific implementation mode is as follows:
the present invention is further described in detail below with reference to the drawings so that those skilled in the art can implement the invention with reference to the description.
It will be understood that terms such as "having," "including," and "comprising," as used herein, do not preclude the presence or addition of one or more other elements or groups thereof.
It should be noted that in the description of the present invention, the terms indicating the orientation or the positional relationship are based on the orientation or the positional relationship shown in the drawings, and are only for convenience of describing the present invention and simplifying the description, and do not indicate or imply that the indicated device or element must have a specific orientation, be constructed in a specific orientation, and be operated, and thus should not be construed as limiting the present invention. Furthermore, the terms "first" and "second" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
In the description of the present invention, unless otherwise explicitly specified or limited, the terms "mounted," "disposed," "sleeved/connected," "connected," and the like are to be construed broadly, such as "connected," which may be a fixed connection, a detachable connection, or an integral connection, a mechanical connection, an electrical connection, a direct connection, an indirect connection via an intermediate medium, or a connection between two elements, and those skilled in the art will understand the specific meaning of the terms in the present invention in a specific context.
Furthermore, in the present disclosure, unless explicitly stated or limited otherwise, a first feature may be "on" or "under" a second feature in direct contact with the first and second features, or in indirect contact with the first and second features through an intermediate. Also, a first feature "on," "over," and "above" a second feature may be directly or diagonally above the second feature, or may simply indicate that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature may be directly under or obliquely under the first feature, or may simply mean that the first feature is at a lesser elevation than the second feature.
As shown in fig. 1-3: the utility model discloses a clamping device for detecting bridge telescoping device clamping performance, include:
the supporting platform 100 is provided with a long hole 101, and a guide rail 200 is fixedly arranged below the supporting platform 100;
the two sides of the sliding block 300 are respectively provided with a sliding chute 31, the sliding block 300 is slidably arranged on the guide rail 200 through the sliding chutes 31, the sliding block 300 is provided with a screw hole 32, the screw hole 32 is in threaded connection with an adjusting screw rod 4, and the adjusting screw rod 4 is movably arranged in the strip hole 101 of the supporting platform 100 in a penetrating manner;
a lower end clamp 5 which is positioned above the supporting platform 100, and the lower end clamp 5 is rotatably connected with the end part of the adjusting screw rod 4; the upper end clamp 6 is movably connected with the lower end clamp 5, adjusting screw holes are respectively formed in two sides of the upper end clamp 6 and a side plate 61 connected with the lower end clamp 5, and clamping bolts 15 are connected in the adjusting screw holes in a threaded mode;
the connecting rod 7 is used for connecting a universal testing machine and is fixedly arranged on a side plate where the upper end clamp 6 is connected with the lower end clamp 5;
the vertical plate 51 of the lower end clamp 5 is movably connected with the side plate 61 of the upper end clamp 6.
The working principle is as follows: as shown in fig. 1, the method for adjusting the clamping distance between the upper end clamp 6 and the lower end clamp 5 of the present invention is: when the clamping distance between the upper end clamp 6 and the lower end clamp 5 is required to be reduced, the adjusting screw rod 4 is screwed to enable the adjusting screw rod 4 to move upwards, the end part of the adjusting screw rod 4 is rotatably connected with the lower end clamp 5, so that the lower end clamp 5 is pushed upwards by the adjusting screw rod 4, and the upper end clamp 6 is connected with a universal testing machine through a connecting rod 7, so that the position of the upper end clamp 6 is kept unchanged, and the clamping distance between the upper end clamp 6 and the lower end clamp 5 is reduced; in the same way, when the clamping distance between the upper end clamp 6 and the lower end clamp 5 needs to be increased, the adjusting screw rod 4 is screwed, and the adjusting screw rod 4 drives the lower end clamp 5 to move downwards.
In the above technical solution, the structure of the lower end clamp 5 includes:
the lower end limiting plate 52, the horizontal plate 53 and the vertical plate 51 are fixedly arranged into a whole;
and a limiting cylinder 54 arranged in the vertical plate 51. The lower end limiting plate 52 has the function of supporting the bridge expansion device, and the arrangement is also adapted to the shape of the bridge expansion device.
In the above technical scheme, the curb plate 61 that upper end anchor clamps 6 and lower extreme anchor clamps 5 meet is the notch cuttype structure, and the fixed spacing post 62 that is provided with on the terminal surface of notch cuttype structure, the cover is equipped with spacing spring 63 on the spacing post 62, spacing spring 63 upper end and notch cuttype structure's terminal surface fixed connection, spacing spring 63's lower extreme and lower extreme anchor clamps 5's spacing section of thick bamboo 54 terminal surface fixed connection. When the adjusting screw rod 4 is screwed to change the clamping distance between the upper end clamp 6 and the lower end clamp 5, the limiting column 62 and the limiting cylinder 54 limit and guide the movement of the lower end clamp 5, and the limiting spring 63 provides elasticity and protection buffering to ensure the stability of the movement of the lower end clamp 6 in the vertical direction. Meanwhile, when the universal testing machine is used for loading and driving the upper end clamp 6 to move, the arrangement can also ensure that the lower end clamp 5 and the sliding block 300 move together with the upper end clamp 6.
In the above technical solution, the upper end limiting plate 64 is arranged on the upper end clamp 6, and the upper end limiting plate 64 is located right above the lower end limiting plate 52 of the lower end clamp 5; the gap between the upper end limit plate 64 and the lower end limit plate 52 is a transverse groove 11 for placing the bridge expansion device. When the bridge expansion device is clamped by the upper end clamp 6 and the lower end clamp 5, the edge of the bridge expansion device is placed into the transverse groove 11 and then clamped and fixed by the upper end clamp 6 and the lower end clamp 5.
In the above technical solution, two supporting platforms 100 are oppositely disposed, and a workbench 10 for supporting a bridge expansion device is disposed between the two supporting platforms 100. When detecting bridge telescoping device clamping performance, place the bridge telescoping device on workstation 10, then use upper end anchor clamps 6 and lower extreme anchor clamps 5 to centre gripping fixed bridge telescoping device's two borders respectively, through the upper end anchor clamps 6 of universal tester loading drive bridge telescoping device both sides, upper end anchor clamps 6 drive lower extreme anchor clamps 5 and slider 300 and move together, stretch the bridge telescoping device, detect whether the rubber sealing strip drops or the crazing appears.
In the above technical solution, a support plate 21 is fixedly disposed outside the guide rail 200, one end of the support plate 21 is fixedly connected with the guide rail 200, and the other end is fixedly connected with the support platform 100. The support plate 21 is used for supporting and reinforcing the guide rail 200, and since the guide rail 200 is to bear the weight of the slider 300, the adjusting screw rod 4, the lower end clamp 5 and the bridge expansion device, the support plate 21 can share a part of the weight of the guide rail 200.
In the above technical solution, a triangular support 12 is fixedly arranged between the limiting cylinder 54 and the horizontal plate 53. The triangular support 12 has a supporting and reinforcing effect on the limiting cylinder 54.
The number of apparatuses and the scale of the process described here are intended to simplify the description of the present invention. Applications, modifications and variations of the present invention will be apparent to those skilled in the art.
While the embodiments of the invention have been described above, it is not intended to be limited to the details shown, or described, but rather to cover all modifications, which would come within the scope of the appended claims, and all changes which come within the meaning and range of equivalency of the art are therefore intended to be embraced therein.
Claims (7)
1. The utility model provides a clamping device for detecting bridge telescoping device clamping performance which characterized in that includes:
the supporting platform is provided with a long hole, and a guide rail is fixedly arranged below the supporting platform;
the two sides of the sliding block are respectively provided with a sliding chute, the sliding block is arranged on the guide rail in a sliding mode through the sliding chutes, the sliding block is provided with a screw hole, an adjusting screw rod is connected to the screw hole in a threaded mode, and the adjusting screw rod is movably arranged in a long hole of the supporting platform in a penetrating mode;
the lower end clamp is positioned above the supporting platform and is rotationally connected with the end part of the adjusting screw rod; the upper end clamp is movably connected with the lower end clamp, adjusting screw holes are respectively formed in two sides of the upper end clamp and a side plate connected with the lower end clamp, and clamping bolts are connected in the adjusting screw holes in a threaded mode;
the connecting rod is fixedly arranged on a side plate of the upper end clamp connected with the lower end clamp;
and the vertical plate of the lower end clamp is movably connected with the side plate of the upper end clamp.
2. The clamping device for testing the clamping performance of a bridge expansion device according to claim 1, wherein the structure of the lower clamp comprises:
the lower end limiting plate, the horizontal plate and the vertical plate are fixedly arranged into a whole;
and the limiting cylinder is arranged in the vertical plate.
3. The clamping device for detecting the clamping performance of the bridge expansion device according to claim 2, wherein the side plate of the upper end clamp connected with the lower end clamp is of a stepped structure, a limiting post is fixedly arranged on the end surface of the stepped structure, a limiting spring is sleeved on the limiting post, the upper end of the limiting spring is fixedly connected with the end surface of the stepped structure, and the lower end of the limiting spring is fixedly connected with the end surface of the limiting barrel of the lower end clamp.
4. The clamping device for detecting the clamping performance of the bridge expansion device according to claim 1, wherein an upper end limiting plate is arranged on the upper end clamp, and the upper end limiting plate is positioned right above a lower end limiting plate of the lower end clamp; and the gap between the upper end limiting plate and the lower end limiting plate is a transverse groove for placing the bridge expansion device.
5. The clamping device for testing the clamping performance of a bridge expansion device according to claim 1, wherein two supporting platforms are oppositely arranged, and a workbench for supporting the bridge expansion device is arranged between the two supporting platforms.
6. The clamping device for detecting the clamping performance of the bridge expansion device according to claim 1, wherein a supporting plate is fixedly arranged outside the guide rail, one end of the supporting plate is fixedly connected with the guide rail, and the other end of the supporting plate is fixedly connected with the supporting platform.
7. The clamping device for detecting the clamping performance of the bridge expansion device as claimed in claim 2, wherein a triangular supporting member is fixedly arranged between the limiting cylinder and the horizontal plate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022437046.3U CN213422787U (en) | 2020-10-28 | 2020-10-28 | Clamping device for detecting clamping performance of bridge expansion device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022437046.3U CN213422787U (en) | 2020-10-28 | 2020-10-28 | Clamping device for detecting clamping performance of bridge expansion device |
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| Publication Number | Publication Date |
|---|---|
| CN213422787U true CN213422787U (en) | 2021-06-11 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202022437046.3U Active CN213422787U (en) | 2020-10-28 | 2020-10-28 | Clamping device for detecting clamping performance of bridge expansion device |
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| Country | Link |
|---|---|
| CN (1) | CN213422787U (en) |
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2020
- 2020-10-28 CN CN202022437046.3U patent/CN213422787U/en active Active
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