CN216284720U - Device is tested in quick debugging of metal bellows lateral bending for prestressed concrete - Google Patents
Device is tested in quick debugging of metal bellows lateral bending for prestressed concrete Download PDFInfo
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- CN216284720U CN216284720U CN202122608292.5U CN202122608292U CN216284720U CN 216284720 U CN216284720 U CN 216284720U CN 202122608292 U CN202122608292 U CN 202122608292U CN 216284720 U CN216284720 U CN 216284720U
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Abstract
The utility model discloses a quick lateral bending debugging and testing device for a metal corrugated pipe for prestressed concrete, which comprises a frame body, a movable plate and a pull rod piece, wherein the frame body is provided with a first side plate and a second side plate; the upper end and the lower end of the frame body are provided with transverse rails, the movable plate is arranged in the frame body, the bottom and the top of the movable plate are respectively arranged in the transverse rails, and the movable plate is driven by the pull rod piece to move rightwards; a return spring is arranged between the left side of the movable plate and the frame body; the upper and lower positions of the frame body are respectively provided with a metal corrugated pipe fixing piece. The utility model has simple and ingenious structure, integrally completes the bending processing and the impermeability detection of the corrugated pipe, and improves the bending and impermeability detection efficiency of the metal corrugated pipe; the method can be used for processing and manufacturing various sectional materials under the condition of bearing local transverse load or specified bending, and has wide adaptability; if necessary, a pressure sensor and a linkage servo motor can be additionally arranged, so that full-electric/full-automatic operation can be realized, and the device is an unavailable basic test tool in road construction.
Description
Technical Field
The utility model relates to a prestressed concrete member used for bridge construction, in particular to a quick lateral bending debugging and testing device for a metal corrugated pipe for prestressed concrete.
Background
The method is characterized in that the bridge is not opened during highway infrastructure, prestressed concrete components are widely applied during bridge construction, metal corrugated pipes are commonly used in the production of prestressed concrete prefabricated components according to technical requirements, the metal corrugated pipes play an important role in structural mechanics parts of the bridge construction and are protective pipe fittings penetrating in the longitudinal stress direction of the components, and the external load resistance and the leakage resistance of the metal corrugated pipes play a vital role in the safety of the components in a using link. Therefore, before the metal corrugated pipe is used, the anti-leakage performance of the metal corrugated pipe under the local transverse load of lateral bending must be detected, and the pipe fitting and the pipe body are required to be free from leakage after lateral bending, so that the protection and constraint effects of the pipe fitting on a prestressed member and the like in a prestressed structure are achieved.
At present, the metal corrugated pipe commonly used for the bridge is a tubular object with the nominal inner diameter of 40-132mm formed by winding and pressing a thin steel strip with the thickness of 0.28-0.6mm, according to statistics of detection personnel, the initial transverse force of the plane external bending of the corrugated pipe with the length of 1.5m is about 50N-300N, which belongs to the manpower reachable range, but the difficulty is that the curvature radius meeting the detection requirement is not easy to achieve. Although the lateral bending rotation can occur through the manual operation of a detector, at least two persons are required to apply force symmetrically, the lateral bending rotation is carried out by bare hands or a simple tool to a specified size, the lateral bending rotation is usually carried out repeatedly for multiple times for meeting the precision requirement, the repeated bending is easy to generate creases for treating the super-curvature pipe fitting with slightly large force application, the pipe fitting is scrapped when the force application is carried out for more than three times, the rework is required, the adjustment duration is long, the force control requirement is high, the difficulty is higher for the detector with insufficient experience, and the labor and the time are wasted.
The test detection of the metal corrugated pipe is carried out according to the corresponding terms in the JG/T225-2020 standard, so the bending manufacture of the pipe is the premise of detection, and the test result of the metal corrugated pipe which does not meet the bending manufacture requirement can be directly influenced by the test. In order to meet a large number of metal corrugated pipe detection tasks, a special device capable of performing quick and accurate operation and reducing operation difficulty needs to be designed.
Disclosure of Invention
The utility model aims to provide a quick lateral bending debugging and testing device for a metal corrugated pipe for prestressed concrete, which is used for overcoming the difficulty of bending operation of testing detection personnel in the past, avoiding systematic errors and random errors of operation of different detection personnel and improving the accuracy and the efficiency of the detection of the bending impermeability of the metal corrugated pipe.
In order to achieve the purpose, the utility model can adopt the following technical scheme:
the utility model relates to a quick lateral bending debugging and testing device for a metal corrugated pipe for prestressed concrete, which comprises a frame body, a movable plate and a pull rod piece, wherein the frame body is provided with a frame body;
the upper end and the lower end of the frame body are provided with transverse rails, the movable plate is arranged in the frame body, the bottom and the top of the movable plate are respectively arranged in the transverse rails, and the movable plate is driven by the pull rod piece to move rightwards; a return spring is arranged between the left side of the movable plate and the frame body;
the upper and lower positions of the frame body are respectively provided with a metal corrugated pipe fixing piece.
A plurality of balls are arranged on the top wall and the two side walls of the transverse tracks at the upper end and the lower end of the frame body at intervals; the resistance of the movable plate during movement can be reduced.
Five positioning stacking points are arranged on the movable plate between the upper metal corrugated pipe fixing piece and the lower metal corrugated pipe fixing piece according to the curvature radius required by regulations, and a group of positioning holes are drilled at the position of each positioning stacking point according to different types of the metal corrugated pipes; so as to ensure that the bending degree of various metal corrugated pipes meets the curvature radius required by regulations.
The metal corrugated pipe fixing piece comprises a fixing frame fixedly installed on the frame body and a rotating frame hinged to the fixing frame, the bottom of the rotating frame is fixed on the movable plate, and a pipe clamp shaft for clamping the metal corrugated pipe is arranged on the rotating frame.
The pull rod piece comprises the branch-shaped force-equalizing rod and the screw shaft which are fixed on the movable plate, the screw shaft horizontally penetrates through the left positioning ring and the right positioning ring which are fixed on the frame body, and the frame body is provided with an operating mechanism which drives the screw shaft to move rightwards and is used for bending the metal corrugated pipe.
In particular, the operating mechanism can be made in different forms, as long as the object of the utility model is achieved. Specifically, the following two structures can be adopted:
the operating mechanism comprises a bevel gear screwed on a screw shaft between the left positioning ring and the right positioning ring, a driving wheel, a ratchet wheel and a rocking handle which are meshed with the bevel gear are sequentially sleeved on a rotating shaft fixed on the frame body, and a positioning pawl matched with the ratchet wheel is further arranged on the frame body.
The operating mechanism comprises a worm wheel screwed at the outer end of the screw shaft, a ratchet wheel and a rocking handle are sequentially sleeved at the end part of the worm meshed with the worm wheel, and a positioning pawl matched with the ratchet wheel is further arranged on the frame body.
In order to realize the one-time completion of lateral bending and water seepage test, the left side of the frame body is provided with an anti-seepage performance testing device.
Specifically, the anti-leakage performance testing device comprises a water inlet pipeline communicated with an external water source, and the tail end of the water inlet pipeline is fixed at the metal corrugated pipe fixing piece at the upper end of the frame body; a water outlet pipeline is arranged at the metal corrugated pipe fixing piece at the lower end of the frame body, and a rubber plug for plugging the metal corrugated pipe is arranged at a water inlet of the water outlet pipeline.
An electric control flow valve is arranged on the water inlet pipeline, and a liquid level sensor for controlling the opening and closing of the electric control flow valve is arranged on the frame body close to the outlet of the water inlet pipeline; the automation of the water seepage test can be realized.
The utility model has the advantages of simple and ingenious structure, and can be used for directly testing the impermeability after various metal corrugated pipes are bent into the standard curvature radius according to the regulation requirements, thereby greatly improving the testing efficiency and reducing the rejection rate.
Drawings
Fig. 1 is a schematic structural view of the present invention.
Fig. 2 is a side view of fig. 1.
Fig. 3 is a structural view of the movable plate of fig. 1.
Fig. 4a and 4b are enlarged views of the metal bellows fixing member shown in fig. 1.
Fig. 4a-1, 4b-1, 4a-2, and 4b-2 are views showing a state in which a large-diameter metal bellows and a small-diameter metal bellows are clamped, respectively.
Fig. 5a, 5b are front and side views, respectively, of the operating mechanism of fig. 1.
Fig. 6a and 6b are views showing another structure of the actuator of fig. 1.
Detailed Description
The present invention will be described in more detail below with reference to the accompanying drawings so as to facilitate understanding for those skilled in the art.
It should be understood by those skilled in the art that the present embodiment is only for explaining the technical principle of the present application, and is not intended to limit the scope of protection of the present application. For example, although the components in the drawings are illustrated in a certain proportional relationship, the proportional relationship is not constant, and those skilled in the art can make modifications as required to adapt to specific applications, and the modified embodiments will still fall within the scope of the present application.
It should be noted that in the description of the present application, the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicating the direction or positional relationship, are based on the directions or positional relationships shown in the drawings, which are only for convenience of description, and do not indicate or imply that the device or component must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present application.
Furthermore, it should be noted that, in the description of the present application, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, and may include, for example, a fixed connection, a detachable connection, or an integral connection; the two components can be directly connected or indirectly connected through an intermediate medium, and the two components can be communicated with each other. The specific meaning of the above terms in the present application can be understood by those skilled in the art as the case may be.
As shown in fig. 1-2, the device for quickly adjusting the lateral bending of a metal corrugated pipe for prestressed concrete according to the present invention comprises a frame body 1, the frame body 1 consists of a back plate, a front panel, a left side plate, a right side plate, a top plate and a bottom plate, and is a vertical box body (which can be made of stainless steel) with the height of 2000mm, the width of 1650mm and the thickness of 200mm, an operation window 2 is dug on the front panel, the upper and lower ends of the frame body 1 are provided with transverse rails, a plurality of balls 3 (four balls with the diameter of 40mm can be adopted, four balls are arranged at the top and four groups are symmetrically arranged on the side wall) are embedded on the top wall and the two side walls of the transverse track at intervals, a transparent reinforced resin movable plate 4 with the thickness of 20mm is embedded in the transverse track of the frame body 1, and the working surface of the movable plate is exposed from the operation window 2 (the size of the window 2 can show the length of the metal corrugated pipe tested according to the regulation and the condition after lateral bending); a return spring 5 (one above and one below) is arranged between the left side of the movable plate 4 and the frame body 1; when the movable plate type lifting device works, under the action of the pull rod piece and the return spring 5, the movable plate 4 can move left and right along the transverse track (because balls are embedded on the top wall and the two side walls of the transverse track, the moving resistance of the movable plate 4 can be reduced); the frame body 1 close to the upper edge and the lower edge of the operation window 2 is respectively provided with a metal corrugated pipe fixing part.
In order to ensure the stability of the device during operation, the device can be fixed on a support frame 101 with an inclination angle of about 85 degrees, as shown in fig. 2, which is more convenient for the operation of a tester.
In order to obtain the metal corrugated pipe with the curvature radius meeting the regulation, five positioning stack points (based on the principle of five-point stress application distribution of simply supported beam structure mechanics) are arranged on a movable plate 4 between an upper metal corrugated pipe fixing piece and a lower metal corrugated pipe fixing piece according to the regulation requirement on the curvature radius of the metal corrugated pipe with the specification of phi 40-phi 132, the specific positions of the positioning stack points are shown in figure 3, a group of positioning holes 4.1 are drilled at the positions of each positioning stack point according to different types of the metal corrugated pipe, and positioning stacks (such as pin shafts and the like can be used) are movably inserted in the positioning holes; so as to ensure that the bending degree of various metal corrugated pipes meets the curvature radius required by regulations.
For the solid corrugated metal pipe who treats the detection of convenient card (still need to guarantee corrugated metal pipe indeformable simultaneously), the corrugated metal pipe mounting of this application includes mount 6 and the rotating turret 7 of hinge on the mount of fixed mounting on support body 1, and the bottom of rotating turret 7 is fixed on fly leaf 4, is provided with a pair of pipe clamp axle 7.1 of centre gripping corrugated metal pipe on rotating turret 7, for guaranteeing two pipe clamp axles 7.1 to corrugated metal pipe's clamping-force, the equilibrium is provided with pipe fitting clamp extension spring 7.3 between two pipe clamp axles and well dead axle 7.2. Fig. 4a is a metal bellows holder installed at an upper portion of the frame body 1, and fig. 4b is a metal bellows holder installed at a lower portion of the frame body; fig. 4a-1, 4b-1, 4a-2 and 4b-2 are views showing the use states of the metal bellows holder when clamping the large diameter metal bellows and the small diameter metal bellows, respectively.
The pull rod for pulling the movable plate 4 to move rightwards in the utility model can adopt the following structure: the three-rod-head-type mechanical linkage comprises a 3540 mm branched force-equalizing rod 8 and a screw shaft 9, as shown in figure 1, the branched force-equalizing rod 8 is made of transparent reinforced resin which is made of the same material as that of a movable plate 4, three rod heads are fixed on the right side edge of the movable plate 4 by stainless steel rivet rings 8.1, and are connected through a composite screw thread body which is wrapped with metal by resin after being folded and extended to form a circular node, so that the mechanical linkage of the screw shaft 9 and the movable plate 4 is realized; the metal wire shaft 9 horizontally penetrates through a left positioning ring 10.1 and a right positioning ring 10.2 fixed on the frame body 1.
The operating mechanism for bending the metal corrugated pipe, which drives the screw shaft 9 to move rightwards, can adopt the following two structures:
one is as follows: as shown in fig. 1, fig. 5a and fig. 5b, the operating mechanism comprises a bevel gear 11.1 screwed on a screw shaft between a left positioning ring 10.1 and a right positioning ring 10.2, a driving wheel 11.3, a ratchet wheel 11.4 and a rocking handle 11.5 which are engaged with the bevel gear 11.1 are sequentially sleeved on a rotating shaft 11.2 fixed on the frame body 1, and a positioning pawl matched with the ratchet wheel 11.4 is also arranged on the frame body; the rocking handle 11.5 is rotated, the driving wheel 11.3 rotates to drive the bevel gear 11.1 to rotate, the screw shaft 9 moves rightwards, the movable plate 4 can be pulled rightwards, the metal corrugated pipe can be clamped on the ratchet wheel 11.4 by the pawl to be positioned for testing after being bent in place, the pawl is lifted up after testing is finished, and the movable plate 4 is pulled back to the original position under the action of the return spring 5.
The second step is as follows: as shown in fig. 6a and 6b, the operating mechanism includes a worm wheel 12.1 screwed on the outer end of the screw shaft 9, a ratchet wheel and a rocking handle are also sleeved on the end of the worm 12.2 engaged with the worm wheel, and a positioning pawl matched with the ratchet wheel is also arranged on the frame body 1. The working process is the same as above.
During actual manufacturing, the operating mechanism can also adopt other mechanical structures, or is additionally provided with a servo motor to realize automatic operation, as long as the purpose of the application can be realized.
Of course, other conventional mechanical configurations for the tie members may be used for this purpose.
In order to realize the one-time completion of the lateral bending and anti-permeability performance test of the metal corrugated pipe, an anti-leakage performance testing device is further arranged on the left side of the frame body 1.
Specifically, the anti-leakage performance testing device comprises a water inlet pipeline 13 communicated with an external water source, wherein the tail end of the water inlet pipeline 13 is fixed at a metal corrugated pipe fixing part at the upper end of the frame body 1 and is connected with a section of water injection hose 14 for facilitating connection with a metal corrugated pipe; a water outlet pipeline 15 is arranged at the fixing part of the metal corrugated pipe at the lower end of the frame body, and a rubber plug 16 for plugging the metal corrugated pipe is arranged at the water inlet of the water outlet pipeline 15.
During actual manufacturing, a liquid storage tank 17 can be arranged below the support frame 101, a pressure pump is arranged in the liquid storage tank, a water outlet of the pressure pump is connected with a water inlet pipeline 13, an electric control flow valve 18 is arranged on the water inlet pipeline 13, and a frame body close to an outlet of the water inlet pipeline is provided with a liquid level sensor 19 for controlling the opening and closing of the electric control flow valve; the electric control flow valve 18 is linked with the liquid level sensor 19, so that the automation of the anti-leakage performance test can be realized.
The working process of the utility model is as follows:
1. the metal corrugated pipe B to be tested is clamped on elastic clamping rods 7.1 of metal corrugated pipe fixing parts at the upper end and the lower end by a tester;
2. inserting the positioning stacks into the holes with the corresponding diameter specifications one by one at five positioning stack points on the movable plate 4;
3. rotating the rocking handle 11.5 until the metal corrugated pipe is in uniform contact with all the positioning stacks at the five positions, and positioning by adopting a pawl to finish the lateral bending work of the metal corrugated pipe;
4. connecting the upper end of the metal corrugated pipe with a water injection hose 14 on a water inlet pipeline 13, connecting the lower end of the metal corrugated pipe with a water outlet pipeline 15, screwing a rubber plug 16 at the bottom, and starting to inject water into the metal corrugated pipe;
5. when the liquid level sensor 19 gives an alarm or manually observes that the tube cavity is filled with water, timing is started;
6. and when the specified time is reached, the pipe body has no leakage, and the pipe body can be taken out after drainage, and other tests are carried out.
The utility model integrally completes the bending processing and the impermeability detection of the corrugated pipe, and improves the detection efficiency of the bending and impermeability of the metal corrugated pipe; the method can be used for processing and manufacturing various sectional materials under the condition of bearing local transverse load or specified bending, and has wide adaptability; if necessary, a pressure sensor and a linkage servo motor can be additionally arranged, so that full-electric/full-automatic operation can be realized, and the device is an unavailable basic test tool in road construction.
Claims (10)
1. The utility model provides a device is tested in quick debugging of metal bellows lateral bending for prestressed concrete which characterized in that: comprises a frame body, a movable plate and a pull rod piece;
the upper end and the lower end of the frame body are provided with transverse rails, the movable plate is arranged in the frame body, the bottom and the top of the movable plate are respectively arranged in the transverse rails, and the movable plate is driven by the pull rod piece to move rightwards; a return spring is arranged between the left side of the movable plate and the frame body;
the upper and lower positions of the frame body are respectively provided with a metal corrugated pipe fixing piece.
2. The device for quickly adjusting and testing the lateral bending of the metal corrugated pipe for prestressed concrete according to claim 1, characterized in that: and a plurality of balls are arranged on the top wall and the two side walls of the transverse tracks at the upper end and the lower end of the frame body at intervals.
3. The device for quickly adjusting and testing the lateral bending of the metal corrugated pipe for prestressed concrete according to claim 1, characterized in that: five positioning stacking points are arranged on the movable plate between the upper metal corrugated pipe fixing piece and the lower metal corrugated pipe fixing piece according to the curvature radius required by regulations, and a group of positioning holes are drilled at the positions of the positioning stacking points according to different types of the metal corrugated pipes.
4. The device for quickly adjusting and testing the lateral bending of the metal corrugated pipe for prestressed concrete according to claim 1, characterized in that: the metal corrugated pipe fixing piece comprises a fixing frame fixedly installed on the frame body and a rotating frame hinged to the fixing frame, the bottom of the rotating frame is fixed on the movable plate, and a pipe clamp shaft for clamping the metal corrugated pipe is arranged on the rotating frame.
5. The device for quickly adjusting and testing the lateral bending of the metal corrugated pipe for prestressed concrete according to claim 1, characterized in that: the pull rod piece comprises the branch-shaped force-equalizing rod and the screw shaft which are fixed on the movable plate, the screw shaft horizontally penetrates through the left positioning ring and the right positioning ring which are fixed on the frame body, and the frame body is provided with an operating mechanism which drives the screw shaft to move rightwards and is used for bending the metal corrugated pipe.
6. The device is used for quickly adjusting and testing the lateral bending of the metal corrugated pipe for the prestressed concrete according to claim 5, and is characterized in that: the operating mechanism comprises a bevel gear screwed on a screw shaft between the left positioning ring and the right positioning ring, a driving wheel, a ratchet wheel and a rocking handle which are meshed with the bevel gear are sequentially sleeved on a rotating shaft fixed on the frame body, and a positioning pawl matched with the ratchet wheel is further arranged on the frame body.
7. The device is used for quickly adjusting and testing the lateral bending of the metal corrugated pipe for the prestressed concrete according to claim 6, and is characterized in that: the operating mechanism comprises a worm wheel screwed at the outer end of the screw shaft, a ratchet wheel and a rocking handle are sequentially sleeved at the end part of the worm meshed with the worm wheel, and a positioning pawl matched with the ratchet wheel is further arranged on the frame body.
8. The device for quickly adjusting and testing the lateral bending of the metal corrugated pipe for prestressed concrete according to claim 1, characterized in that: and the left side of the frame body is provided with an anti-leakage performance testing device.
9. The device for quickly adjusting and testing the lateral bending of the metal corrugated pipe for prestressed concrete according to claim 8, wherein: the anti-leakage performance testing device comprises a water inlet pipeline communicated with an external water source, and the tail end of the water inlet pipeline is fixed at the metal corrugated pipe fixing piece at the upper end of the frame body; a water outlet pipeline is arranged at the metal corrugated pipe fixing piece at the lower end of the frame body, and a rubber plug for plugging the metal corrugated pipe is arranged at a water inlet of the water outlet pipeline.
10. The device for quickly adjusting and testing the lateral bending of the metal corrugated pipe for prestressed concrete according to claim 9, characterized in that: the water inlet pipeline is provided with an electric control flow valve, and a frame body close to the outlet of the water inlet pipeline is provided with a liquid level sensor for controlling the opening and closing of the electric control flow valve.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122608292.5U CN216284720U (en) | 2021-10-28 | 2021-10-28 | Device is tested in quick debugging of metal bellows lateral bending for prestressed concrete |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202122608292.5U CN216284720U (en) | 2021-10-28 | 2021-10-28 | Device is tested in quick debugging of metal bellows lateral bending for prestressed concrete |
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| CN216284720U true CN216284720U (en) | 2022-04-12 |
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| CN202122608292.5U Active CN216284720U (en) | 2021-10-28 | 2021-10-28 | Device is tested in quick debugging of metal bellows lateral bending for prestressed concrete |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117554202A (en) * | 2024-01-11 | 2024-02-13 | 常州富莱克汽车零部件制造有限公司 | Metal bellows local load performance detection test device |
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2021
- 2021-10-28 CN CN202122608292.5U patent/CN216284720U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117554202A (en) * | 2024-01-11 | 2024-02-13 | 常州富莱克汽车零部件制造有限公司 | Metal bellows local load performance detection test device |
| CN117554202B (en) * | 2024-01-11 | 2024-04-30 | 常州富莱克汽车零部件制造有限公司 | Metal bellows local load performance detection test device |
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