CN216577660U - Pre-tightening device for pipeline connection of constructional engineering - Google Patents
Pre-tightening device for pipeline connection of constructional engineering Download PDFInfo
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- CN216577660U CN216577660U CN202122144761.2U CN202122144761U CN216577660U CN 216577660 U CN216577660 U CN 216577660U CN 202122144761 U CN202122144761 U CN 202122144761U CN 216577660 U CN216577660 U CN 216577660U
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- 238000010030 laminating Methods 0.000 description 2
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Abstract
The utility model provides a pre-tightening device for pipeline connection in constructional engineering, which comprises a supporting handle, a transmission handle and a driving screw rod, wherein the supporting handle is connected with the transmission handle through a screw rod; the lower end of the supporting handle is provided with a fixed pipeline clamping device; the lower end of the transmission handle is provided with a rotary pipeline clamping device; the driving screw comprises a driving end and a supporting end, the screw thread of the driving end and the screw thread of the supporting end are opposite in rotating direction, the supporting end is in threaded connection with the supporting handle, and the driving end is in threaded connection with the transmission handle; and rotating the driving screw rod, and rotating the transmission handle relative to the support handle. The pre-tightening device can replace hands to pre-tighten during threaded connection of building pipelines, achieves an ideal pre-tightening effect, and guarantees the tightness of the pipelines.
Description
Technical Field
The utility model relates to the technical field of pipeline equipment, in particular to a pre-tightening device for pipeline connection in constructional engineering.
Background
In the construction of building engineering, a large number of fire-fighting pipelines and water supply pipelines need to be subjected to field construction operation, and when multiple sections of pipelines are connected, methods such as threaded connection, flange connection and clamp connection are adopted. The threaded connection is formed by connecting two connecting devices with conical pipe threads of an inner interface and an outer interface in a screwing mode, and the connection effect is achieved through pressure sealing of the threads of the connecting ports.
In the construction site of the building engineering, the manual rotation pipeline is generally adopted for threaded connection, but because of the reasons of large diameter of the pipeline, long length of the pipeline and the like, an operator cannot directly pre-tighten the pipeline by hand or the pre-tightening effect is unsatisfactory, the reliability and the anti-loosening capacity of the threaded connection of the pipeline cannot be improved, the tightness of the threaded connection cannot be ensured, and the tightness of the pipeline connection of the building engineering cannot be met.
Therefore, in view of the current situation of the prior art, it is an urgent need to develop a pretensioning device for the pipe connection in construction engineering.
SUMMERY OF THE UTILITY MODEL
In order to solve the defects of the prior art, the utility model provides the pretightening device for the pipeline connection in the building engineering, which can realize pretightening after the threaded connection of the pipeline, achieve the pretightening effect of larger torque, ensure the tightness of the threaded connection and further ensure the tightness of the pipeline.
The technical scheme adopted by the utility model for solving the technical problems is as follows: a pre-tightening device for the pipeline connection of the building engineering comprises a supporting handle, a transmission handle and a driving screw rod; the lower end of the supporting handle is provided with a fixed pipeline clamping device; the lower end of the transmission handle is provided with a rotary pipeline clamping device; the driving screw comprises a driving end and a supporting end, the screw thread of the driving end and the screw thread of the supporting end are opposite in rotating direction, the supporting end is in threaded connection with the supporting handle, and the driving end is in threaded connection with the transmission handle; and rotating the driving screw rod, and rotating the transmission handle relative to the support handle. The pre-tightening device can pre-tighten the threaded connection of the pipeline, achieves the pre-tightening effect of large torque, guarantees tightness of threaded connection, and guarantees tightness of the pipeline.
Further, fixed pipeline clamping device and/or rotation pipeline clamping device include setting element, holder and connecting device, the setting element is circular-arc, the setting element can with fixed pipeline and/or rotation pipeline laminating, the upper end of setting element with the support handle and/or the transmission handle lower extreme is connected, the holder lower extreme with the setting element lower extreme is articulated to be connected, the holder is circular-arc, the holder can with fixed pipeline and/or rotation pipeline laminating, connecting device includes nut and bolt, the one end of bolt with the setting element upper end is articulated to be connected, the other end of bolt passes the stopper of holder upper end with the nut is connected. The firm clamping of the supporting handle to the fixed pipeline and the firm clamping of the transmission handle to the rotating pipeline can be realized.
Further, the locating piece with the holder all includes the plurality of locating pieces that set up at its inner surface, be provided with a plurality of recesses on the working surface of locating piece, the locating piece adopts rubber materials. The friction force between the rotary pipeline clamping device and the two sections of pipelines and the friction force between the fixed pipeline clamping device and the two sections of pipelines can be increased to prevent the two sections of pipelines from rotating relatively, and the positioning blocks are elastic, so that the rotary pipeline clamping device can be suitable for pre-tightening pipelines with various diameters in a certain range.
Further, the positioning piece and the supporting handle and/or the transmission handle are of an integrally formed structure. The connecting strength of the supporting handle and the fixed pipeline clamping device, the connecting strength of the transmission handle and the rotating pipeline clamping device can be enhanced, and a better pre-tightening effect is ensured.
Furthermore, a support nut is installed at the upper end of the support handle, the support nut is connected with the support handle through a first ball stud, a ball head of the first ball stud can rotate inside the support handle, and the drive screw is connected with the support handle through the support nut. The supporting nut and the supporting handle can have certain freedom degree, so that the installation is convenient, and when the transmission handle rotates, the rotation resistance of the driving screw rod is not increased.
Further, a transmission nut is installed at the upper end of the transmission handle and connected with the fixed handle through a second ball stud, a ball head of the second ball stud can rotate inside the transmission handle, and the driving screw rod is connected with the transmission handle through the transmission nut. The transmission nut and the transmission handle can be installed conveniently with a certain degree of freedom, and when the transmission handle rotates, the rotation resistance of the driving screw rod is not increased.
Furthermore, a pre-tightening completion prompting device is mounted on the transmission handle and can monitor the torque on the transmission handle in real time, and when the torque reaches a preset value, the pre-tightening completion prompting device can give a prompt. The device can prompt an operator whether to continuously rotate the driving screw, and prevent the pre-tightening torque from being too small or too large.
Furthermore, a driving handle is arranged in the middle of the driving screw rod, and the driving handle is perpendicular to the driving screw rod. The operator can conveniently rotate the driving screw.
Further, the support handle and the transmission handle are made of high-strength steel. The support handle and the transmission handle can bear large load without deformation.
The principle of the utility model is as follows:
when the driving screw rod is rotated, the supporting handle and the transmission handle are both subjected to tension action, and the supporting handle and the transmission handle have the tendency of generating relative rotation because the threads at the two ends of the driving screw rod are opposite and the directions of the two tensions are opposite; because the fixed pipeline is fixed, the supporting handle can not drive the fixed pipeline to rotate; the rotary pipeline is not fixed, and when the transmission handle is under tension, the rotary pipeline can be driven to rotate relatively under the action of friction force, so that the thread pre-tightening is realized.
The using process of the utility model is as follows:
firstly, connecting a rotating pipeline to one end of a fixed pipeline through threads; clamping a support handle on a fixed pipeline through a fixed pipeline clamping device, and mounting one end of a driving screw on the support handle through a support nut; connecting a transmission handle to the other end of the driving screw rod through a transmission nut, and clamping the rotary pipeline clamping device and the fixed pipeline clamping device on the rotary pipeline oppositely; opening a pre-tightening completion prompting device and inputting a corresponding torque set value; and rotating the driving screw until the pre-tightening completion prompting device gives a prompt, and completing the pre-tightening work.
According to the technical scheme, the utility model has the following advantages:
the scheme provides a pre-tightening device for pipeline connection in building engineering, and by arranging a supporting handle, a fixed pipeline clamping device, a transmission handle, a rotary pipeline clamping device and a driving screw, the transmission handle drives the rotary pipeline to rotate relative to the fixed pipeline, so that the direct work of hands is replaced, the pre-tightening with larger torque is realized, and the sealing property of the pipeline is enhanced; the positioning block is arranged, so that the device can be suitable for pre-tightening pipelines with different diameters in a certain range; the pre-tightening completion prompting device is arranged, so that pre-tightening can be more reasonably performed to prevent overlarge or undersize torque; the first ball stud and the second ball stud are arranged, the transmission nut and the support nut are arranged, and resistance applied to the driving screw during movement is reduced.
Drawings
In order to more clearly illustrate the technical solution of the present invention, the drawings used in the description will be briefly introduced, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art that other drawings can be obtained based on these drawings without creative efforts.
Fig. 1 is a schematic structural diagram of a first embodiment of the present invention.
Fig. 2 is a left side view of a drive handle in a first embodiment of the utility model.
Fig. 3 is a front view of a drive handle in a first embodiment of the utility model.
Fig. 4 is a schematic structural diagram of a driving screw according to a first embodiment of the present invention.
Fig. 5 is a schematic structural diagram of a second embodiment of the present invention.
In the figure, 1, a supporting handle, 2, a transmission handle, 3, a driving screw, 4, a fixed pipeline clamping device, 5, a rotating pipeline clamping device, 6, a positioning piece, 7, a clamping piece, 8, a first hinge, 9, a bolt, 10, a nut, 11, a connecting device, 12, a second hinge, 13, a positioning block, 14, a transmission nut, 15, a supporting nut, 16, a first ball stud, 17, a pre-tightening completion prompting device, 18, a supporting end, 19, a driving end 19, 20, a driving handle, 21, a fixed pipeline, 22, a rotating pipeline, 23 and a limiting block.
Detailed Description
Detailed description of the utility model
In order to make the objects, features and advantages of the present invention more obvious and understandable, the technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings in the present embodiment, and it is apparent that the embodiments described below are only a part of embodiments of the present invention, and not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the scope of protection of this patent.
As shown in fig. 1, 2 and 4, the utility model provides a pre-tightening device for connecting building engineering pipelines, which comprises a transmission handle 2, a support handle 1 and a driving screw rod 3. A rotary pipeline clamping device 5 is arranged at the lower end of the transmission handle 2 and can clamp a rotary pipeline 22, a transmission nut 14 is arranged at the upper end of the transmission handle 2 through a ball stud I16, and a ball head of the transmission nut can rotate inside the transmission handle 2; the lower end of the supporting handle 1 is provided with a fixed pipeline clamping device 4 which can clamp and fix a fixed pipeline 21, the upper end of the supporting handle 1 is provided with a supporting nut 15 through a second ball stud, and a ball head of the supporting nut can rotate in the supporting handle 1; the driving end 19 of the driving screw rod 3 is connected with the transmission nut 14, the supporting end 18 is connected with the supporting nut 15, the thread turning directions of the supporting end 18 and the driving end 19 are opposite, and the middle part of the driving screw rod 3 is provided with a driving handle 20; when the device works, the fixed pipeline clamping device and the rotary pipeline clamping device are oppositely clamped on corresponding pipelines, at the moment, certain friction force exists between the fixed pipeline clamping device and the rotary pipeline clamping device and the clamped pipelines, and the pre-tightening can be completed by rotating the driving screw rod.
As shown in fig. 3, the rotary pipe clamping device 5 and the fixed pipe clamping device 4 both have the following structures: comprises a positioning piece 6, a connecting device 11, a clamping piece 7 and a positioning block 13; the positioning piece 6 is arc-shaped, 2 positioning blocks 13 are arranged on the inner surface of the positioning piece and can be attached to the fixed pipeline 21 or the rotating pipeline 22, and the upper end of the positioning piece is fixedly connected with the lower end of the support handle 1 or the lower end of the transmission handle 2; the lower end of the clamping piece 7 is connected with the lower end of the positioning piece 6 through a first hinge 8, the clamping piece 7 is arc-shaped, and two positioning blocks 13 are arranged on the inner surface of the clamping piece and can be attached to a fixed pipeline 21 or a rotating pipeline 22; the connecting device 11 comprises a nut 10 and a bolt 9, one end of the bolt 9 is connected with the upper end of the positioning piece 6 through a second hinge 12, and the other end of the bolt 9 penetrates through a limiting block 23 at the upper end of the clamping piece 7 to be connected with the nut 10; the working surface of the positioning block 13 is provided with a plurality of grooves made of rubber.
Detailed description of the utility model
As shown in fig. 5, on the basis of the first embodiment, the positioning member 6 of the rotary pipe clamping device 5 and the driving handle 2 are integrally formed, and the positioning member of the fixed pipe clamping device 4 and the supporting handle 1 are integrally formed.
The using process of the utility model is as follows:
firstly, the rotating pipeline 22 is connected to one end of the fixed pipeline 21 through threads; clamping the support handle 1 on the fixed pipeline 21 through the fixed pipeline clamping device 4, and mounting one end of the driving screw rod 3 on the support handle 1 through the support nut 15; connecting a transmission handle 2 to the other end of the driving screw rod 3 through a transmission nut 14, and clamping the rotary pipeline clamping device 5 on the rotary pipeline 22; turning on the pre-tightening completion prompting device 17 and inputting a corresponding torque set value; the driving screw 3 is rotated until the pre-tightening completion prompting device 17 gives a prompt, and the pre-tightening work is completed.
In fig. 1, when the driving screw 3 rotates according to the direction in the figure, the driving screw 3 moves relative to the supporting nut 15 according to the direction in the figure, because the thread turning directions of the supporting end 18 and the driving end 19 are opposite, the driving screw 3 moves relative to the driving nut 14 according to the direction of the solid arrow, the driving nut 14 moves according to the direction of the dotted arrow, the driving handle 2 is driven to move according to the direction of the dotted arrow, the driving handle 2 generates transmission relative to the supporting handle 1, and the rotating pipeline 22 is driven to rotate relative to the fixed pipeline 21, so that pre-tightening is achieved.
The utility model has the following advantages:
1. by arranging the supporting handle 1, the fixed pipeline clamping device 4, the transmission handle 2, the rotary pipeline clamping device 5 and the driving screw rod 3, the transmission handle 2 drives the rotary pipeline 22 to rotate relative to the fixed pipeline 21, and large-torque pre-tightening is realized, so that the pipeline sealing performance is enhanced;
2. the positioning block 13 is arranged, so that the device can be suitable for pre-tightening pipelines with different diameters in a certain range, and meanwhile, the friction force is increased, and the sliding is prevented during pre-tightening;
3. the pre-tightening completion prompting device 17 is arranged to reasonably pre-tighten to prevent the torque from being too large or too small;
4. the first ball stud 16 and the second ball stud are connected with the transmission nut 14 and the support nut 15, so that the driving handle 2 is prevented from blocking the rotation of the driving screw rod 3 when rotating.
5. The rotary driving screw 3 is rotated in the direction opposite to the pre-tightening direction, so that the pre-tightening force can be conveniently relieved when the pipeline is disassembled.
The terms "upper", "lower", "outside", "inside", and the like in the description and claims of the present invention and the above-described drawings (if any) are used for distinguishing relative positions without necessarily being construed qualitatively. It is to be understood that the data so used is interchangeable under appropriate circumstances such that the embodiments of the utility model described herein are capable of operation in sequences other than those illustrated or described herein. Furthermore, the terms "comprising" and "having," as well as any variations thereof, are intended to cover non-exclusive inclusions.
The previous description of the disclosed embodiments is provided to enable any person skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the utility model. Thus, the present invention is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.
Claims (9)
1. A pre-tightening device for pipeline connection in constructional engineering is characterized by comprising a supporting handle (1), a transmission handle (2) and a driving screw (3); the lower end of the supporting handle (1) is provided with a fixed pipeline clamping device (4); the lower end of the transmission handle (2) is provided with a rotary pipeline clamping device (5); the driving screw rod (3) comprises a driving end (19) and a supporting end (18), the thread turning directions of the driving end (19) and the supporting end (18) are opposite, the supporting end (18) is in threaded connection with the supporting handle (1), and the driving end (19) is in threaded connection with the transmission handle (2); and the driving screw rod (3) is rotated, and the transmission handle (2) rotates relative to the supporting handle (1).
2. The pre-tightening device for the pipe connection in the building engineering according to claim 1, wherein the fixed pipe clamping device (4) and/or the rotating pipe clamping device (5) comprises a positioning piece (6), a clamping piece (7) and a connecting device (11), the positioning piece (6) is arc-shaped, the positioning piece (6) can be attached to a fixed pipe (21) and/or a rotating pipe (22), the upper end of the positioning piece (6) is connected to the lower end of the supporting handle (1) and/or the transmission handle (2), the lower end of the clamping piece (7) is hinged to the lower end of the positioning piece (6), the clamping piece (7) is arc-shaped, the clamping piece (7) can be attached to the fixed pipe (21) and/or the rotating pipe (22), the connecting device (11) comprises a nut (10) and a bolt (9), one end of the bolt (9) is hinged with the upper end of the positioning piece (6), and the other end of the bolt (9) penetrates through a limiting block (23) at the upper end of the clamping piece (7) to be connected with the nut (10).
3. The pre-tightening device for the pipe connection in the building engineering according to claim 2, wherein the positioning member (6) and the clamping member (7) each comprise a plurality of positioning blocks (13) arranged on the inner surface thereof, a plurality of grooves are arranged on the working surface of the positioning blocks (13), and the positioning blocks (13) are made of rubber materials.
4. The pretensioning device for a pipe connection in construction engineering according to claim 2, characterized in that the positioning element (6) is of an integrally formed construction with the support handle (1) and/or the transmission handle (2).
5. The pre-tightening device for the pipe connection in the building engineering according to claim 1, characterized in that a support nut (15) is mounted at the upper end of the support handle (1), the support nut (15) is connected with the support handle (1) through a first ball stud (16), the ball of the first ball stud (16) can rotate inside the support handle (1), and the driving screw (3) is connected with the support handle (1) through the support nut (15).
6. The pre-tightening device for the pipe connection in the constructional engineering as claimed in claim 5, wherein a transmission nut (14) is mounted at the upper end of the transmission handle (2), the transmission nut (14) is connected with the transmission handle (2) through a second ball stud, a ball head of the second ball stud can rotate inside the transmission handle (2), and the driving screw (3) is connected with the transmission handle (2) through the transmission nut (14).
7. The pre-tightening device for the pipe connection in the constructional engineering as claimed in claim 1, wherein the transmission handle (2) is provided with a pre-tightening completion prompting device (17), the pre-tightening completion prompting device (17) can monitor the torque on the transmission handle (2) in real time, and when the torque reaches a preset value, the pre-tightening completion prompting device (17) can give a prompt.
8. The pre-tightening device for the pipe connection in the building engineering according to claim 1, characterized in that a driving handle (20) is arranged in the middle of the driving screw (3), and the driving handle (20) is perpendicular to the driving screw (3).
9. The pretensioning device for building engineering pipe connections according to claim 1, characterized in that the support handle (1) and the transmission handle (2) are of high strength steel.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122144761.2U CN216577660U (en) | 2021-09-06 | 2021-09-06 | Pre-tightening device for pipeline connection of constructional engineering |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122144761.2U CN216577660U (en) | 2021-09-06 | 2021-09-06 | Pre-tightening device for pipeline connection of constructional engineering |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN216577660U true CN216577660U (en) | 2022-05-24 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202122144761.2U Active CN216577660U (en) | 2021-09-06 | 2021-09-06 | Pre-tightening device for pipeline connection of constructional engineering |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN216577660U (en) |
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2021
- 2021-09-06 CN CN202122144761.2U patent/CN216577660U/en active Active
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|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CP03 | Change of name, title or address |
Address after: No.63, Yinqueshan Road, Lanshan District, Linyi City, Shandong Province Patentee after: TIANYUAN CONSTRUCTION GROUP Co.,Ltd. Country or region after: China Patentee after: Veterans (Shandong) Construction Group Co.,Ltd. Patentee after: LINYI TIANFANG CONSTRUCTION RESEARCH TESTING CO.,LTD. Address before: No.63, Yinqueshan Road, Lanshan District, Linyi City, Shandong Province Patentee before: TIANYUAN CONSTRUCTION GROUP Co.,Ltd. Country or region before: China Patentee before: SHANDONG HONGDA REAL ESTATE Co.,Ltd. Patentee before: LINYI TIANFANG CONSTRUCTION RESEARCH TESTING CO.,LTD. |
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| CP03 | Change of name, title or address |