Pipe joint capable of realizing continuous variable-curvature turning and pipe push bench
By designing a cylinder, outer ball head, inner ball head, and connecting block on the pipe section of the pipe jacking machine, continuous variable curvature turning is achieved, solving the adaptability problem of traditional pipe jacking machines in multi-curve turning conditions, simplifying the construction process, and reducing costs.
Patent Information
- Application Number
- CN202520857402.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-04-30
- Publication Date
- 2026-02-17
- Estimated Expiration
- 2035-04-30
AI Technical Summary
Traditional pipe jacking machines require the pipe sections to be adjusted in advance when turning, making it difficult to adapt to multiple curves. Furthermore, the adjustment devices are large and complex, increasing costs and installation difficulties.
The design incorporates a cylindrical body, an outer ball head, an inner ball head, and a connecting block. Continuous variable curvature turns of the pipe section are achieved through insertion holes and connecting pins. The connecting block and the bottom block are detachably bolted together to adapt to changes in tunnel curves.
It enables flexible and adaptive turning of the pipe sections within the tunnel, preventing relative torsion, simplifying the construction process, and reducing costs and complexity.
Smart Images
Figure CN223924071U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to a tunnel construction equipment technical field, concretely relates to a pipe section and pipe jacking machine that can continuously change curvature and turn. BACKGROUND
[0002] The pipe section of the traditional pipe jacking machine realizes turning through the adjusting device, needs to adjust in advance according to the tunnel turning curve requirement, when the tunnel curvature changes in construction, the pipe section is difficult to adapt to the change of tunnel curve in real time. The existing structure needs to set multiple adjusting devices such as jacks, screw rods etc. in the circumferential direction of the pipe section, the jack can provide larger adjusting force, but the size of the jack is larger, and multiple groups need to be arranged, which has a great influence on the space structure arrangement and structural strength of the pipe section, when the number of jacks is small, it is difficult to realize adjustment, and when the number of jacks is large, it greatly increases the arrangement difficulty and cost, the screw rod device can only adjust the angle between the adjacent two pipe sections in advance according to the turning radius of the tunnel, when the pipe jacking host excavates the route deviating from the predetermined route in construction, there is the risk of pipe section jamming, since the pipe section angle needs to be adjusted in advance, this mode is not suitable for the working condition that a construction tunnel has multiple curve turning. SUMMARY
[0003] The utility model aims at providing a pipe section and pipe jacking machine that can continuously change curvature and turn, to solve the technical problem that the turning adjusting device in the prior art needs to adjust the pipe section angle in advance before turning, and is not suitable for the working condition that a construction tunnel has multiple curve turning, and the specific technical scheme is as follows:
[0004] The utility model provides a pipe section that can continuously change curvature and turn, including cylinder, outer ball head, inner ball head and connecting block, the outer ball head is fixed in the first end of the cylinder, the inner ball head is fixed in the second end of the cylinder, the inner wall of the cylinder is equipped with the bottom block near the position of the inner ball head, the connecting block is detachably connected on the bottom block and extends out the inner ball head, the inner periphery of the outer ball head is equipped with connecting pin, and the connecting block is equipped with the plug-in hole that is movably inserted with the connecting pin of adjacent pipe section.
[0005] The further improvement of the utility model pipe section that can continuously change curvature and turn lies in that the plug-in hole is a waist-shaped hole or a strip-shaped hole.
[0006] The further improvement of the utility model pipe section that can continuously change curvature and turn lies in that the outer ball head and the inner ball head are annular.
[0007] The further improvement of the utility model pipe section that can continuously change curvature and turn lies in that the number of connecting pins is four, and the four connecting pins are evenly distributed on the inner periphery wall of the outer ball head.
[0008] The further improvement of the pipe joint capable of continuously variable-curvature turning lies in that the number of the bottom blocks is four, and the four bottom blocks are uniformly distributed on the inner circumferential wall of the inner spherical head.
[0009] The further improvement of the pipe joint capable of continuously variable-curvature turning lies in that the number of the connecting blocks is two, and the two connecting blocks are detachably connected to the opposite two bottom blocks.
[0010] The further improvement of the pipe joint capable of continuously variable-curvature turning lies in that the connecting blocks are connected to the bottom blocks through bolts.
[0011] The utility model also provides a pipe jacking machine, including at least two pipe joints capable of continuously variable-curvature turning of butt joint setting as described above.
[0012] The technical scheme of the utility model has the following beneficial effects:
[0013] The pipe joint capable of continuously variable-curvature turning has the following advantages: the plug-in hole is arranged on the connecting block, the pipe joint can be turned along the tunnel curve, and the relative circumferential torsion between the pipe joints is prevented, the pipe joint angle is adjusted in advance before turning in the turning adjusting device in the prior art, and the technical problem that the turning adjusting device is not suitable for the working condition that the construction tunnel has multiple curve turns is solved, the inner and outer spherical head structures are arranged at the barrel end of the pipe joint, the variable-curvature turning can be adapted, the connecting block and the bottom block are detachably connected through bolts, the installation position of the connecting block can be flexibly adjusted according to the turning direction of the tunnel, and when the pipe joint needs to be back dragged, the connecting pins and the connecting blocks are matched to connect the pipe joints, and the back dragging operation of the pipe joint is realized.
[0014] In addition to the objects, features and advantages described above, the utility model has other objects, features and advantages. The utility model will be further described below with reference to the drawings. BRIEF DESCRIPTION OF DRAWINGS
[0015] The drawings that form a part of this application are intended to provide a further understanding of the utility model, and the schematic embodiments of the utility model and the description thereof are used to explain the utility model, and do not constitute improper limitation on the utility model. In the drawings:
[0016] Figure 1 It is the axial sectional view of the pipe joint capable of continuously variable-curvature turning of the utility model,
[0017] Figure 2 It is the radial sectional view of the outer spherical head of the pipe joint capable of continuously variable-curvature turning of the utility model,
[0018] Figure 3 It is the radial sectional view of the inner spherical head of the pipe joint capable of continuously variable-curvature turning of the utility model,
[0019] Figure 4 is the connecting block structure diagram of the pipe joint of the utility model continuous variable curvature turning;
[0020] Figure 5 is the connecting diagram of the inner ball head of the utility model pipe joint and the inner ball head of the adjacent pipe joint;
[0021] Figure 6 is the simulation diagram of the pipe joint of the utility model continuous variable curvature turning adapting to different curvature turning;
[0022] Figure 7 is the state diagram of the pipe of the utility model pipe jacking machine when the pipe joint is back pulled.
[0023] Among them, 1, cylinder; 2, outer ball head; 3, connecting pin; 4, inner ball head; 5, bottom block; 6, connecting block; 7, bolt; 8, connecting hole; 9, insertion hole; 10, first pipe joint; 11, second pipe joint; 12, third pipe joint. Specific implementation
[0024] The embodiments of the utility model are described in detail below in combination with the drawings.
[0025] Referring to Figures 1-7 , a pipe joint of continuous variable curvature turning, including cylinder 1, outer ball head 2, inner ball head 4 and connecting block 6; the outer ball head 2 is fixed on the first end of the cylinder 1, and the inner ball head 4 is fixed on the second end of the cylinder 1; the inner wall of the cylinder 1 is provided with bottom block 5 close to the position of the inner ball head 4, and the connecting block 6 is detachably connected on the bottom block 5 and extends out of the inner ball head 4; the inner periphery of the outer ball head 2 is provided with connecting pin 3, and the connecting block 6 is provided with insertion hole 9 for the movable insertion of the connecting pin 3 of the adjacent pipe joint.
[0026] The utility model designs the outer ball head 2 and the inner ball head 4 of ball hinge type structure on the socket end and the spigot end of the pipe joint, that is, the socket and spigot type universal joint structure, which can realize the continuous transformation of multiple curvatures and can adapt to the actual tunnel turning curve.In the inner ball head 4, the detachable connecting block 6 is arranged, and the connecting pin 3 is arranged on the outer ball head 2, which can prevent the relative torsion between the pipe joints; in addition, the connecting block 6 and the connecting pin 3 can make each pipe joint become a continuous body after cooperation, and the back pulling of the pipe joint can be realized.
[0027] Preferably, as shown in Figure 4 , the insertion hole 9 is a waist-shaped hole or a strip-shaped hole, so that when the pipe joint turns along the tunnel curve, the connecting pin 3 can move correspondingly in the insertion hole 9, and the relative circumferential torsion between the pipe joints is prevented.The insertion hole 9 can also be other structure types that can realize the one-way movement of the connecting pin 3.
[0028] Preferably, as shown in Figures 1-3As shown, the outer spherical head 2 and the inner spherical head 4 are annular. The inner spherical head 4 can be adaptively inserted with the outer spherical head 2 of the adjacent pipe section. The structure of the inner spherical head 4 and the outer spherical head 2 is not limited to the solid ball structure, and can also be other similar universal joint structures.
[0029] Preferably, the number of the connecting pins 3 is four, and the four connecting pins 3 are uniformly distributed on the inner circumferential wall of the outer spherical head 2.
[0030] Preferably, the number of the bottom blocks 5 is four, and the four bottom blocks 5 are uniformly distributed on the inner circumferential wall of the inner spherical head 4 and correspond to the four connecting pins 3. The number of the connecting pins 3, the number of the bottom blocks 5 and the number of the connecting blocks 6 are all example numbers of the utility model, which are not limited to the above numbers, and the specific numbers can be adjusted according to the actual site conditions.
[0031] Preferably, the number of the connecting blocks 6 is two, and the two connecting blocks 6 are detachably connected to the opposite two bottom blocks 5. When the tunnel horizontally turns, the connecting blocks 6 are installed on the upper and lower parts of the pipe section in the vertical direction, so that the pipe section can take the two groups of connecting blocks 6 on the upper and lower parts in the vertical direction as the rotation shafts. When the tunnel vertically turns, the connecting blocks 6 are installed on the left and right parts of the pipe section in the horizontal direction, so that the pipe section can take the two groups of connecting blocks 6 on the left and right parts in the horizontal direction as the rotation shafts. Figure 5 As shown, the waist-shaped hole of the connecting block 6 is sleeved on the connecting pin 3, allowing the connecting pin 3 to move in the length direction of the hole and limiting the movement of the connecting pin 3 in the width direction of the hole, so that the pipe section can turn along the tunnel curve and prevent the relative circumferential torsion between the pipe sections. Figure 6 As shown is a simulation diagram of the pipe section adapting to different curvature turning. By setting the length of the waist-shaped hole on the connecting block 6 and the sizes of the inner spherical head 4 and the outer spherical head 2 of the pipe section, the pipe section can adapt to different sizes and ranges of the tunnel turning curvature. The turning angle between the first pipe section 10 and the second pipe section 11 is 2°, and the turning angle between the second pipe section 11 and the third pipe section 12 is 3.5°. The turning angles are all example angles of the utility model, which are not limited to the above angles, and the specific turning angles can be adjusted according to the actual site conditions.
[0032] In addition, when it is necessary to pull back the pipe section, the connecting pins 3 and the connecting blocks 6 can be matched to connect the pipe sections, so as to realize the pulling back operation of the pipe section. Figure 7
[0033] Preferably, the connecting block 6 is connected to the bottom block 5 through the bolt 7. The connecting hole 8 for the bolt 7 to pass through is arranged on the connecting block 6. The detachable connection of the connecting block 6 is not limited to the bolt 7 connection, and can also be other ways of connection, such as clamping or using a clamp type connecting piece to realize the detachable connection.
[0034] The utility model also provides a pipe jacking machine, including at least two sections of the pipe section of continuous variable curvature turning of butt joint setting.
[0035] The pipe section of continuous variable curvature turning of the utility model can be turned along the tunnel curve through the setting of the plug hole 9 on the connecting block 6, and the relative circumferential torsion between the pipe sections can be prevented, and the technical problem that the turning adjusting device in the prior art needs to adjust the angle of the pipe section in advance before turning and is not suitable for the working condition that the construction tunnel has multiple curve turns is solved. The utility model sets the inner and outer ball heads 2 structure at the end of the cylinder body 1 of the pipe section, and the variable curvature turning can be adapted. The connecting block 6 and the bottom block 5 are detachably connected through the bolt 7, and the installation position of the connecting block 6 can be flexibly adjusted according to the turning direction of the tunnel. When the pipe section needs to be pulled back, the connecting pin 3 can be connected with the connecting block 6 to connect the pipe sections, and the pulling back operation of the pipe section is realized.
[0036] The above only is the preferred embodiment of the utility model, and does not limit the utility model, and the utility model can have various changes and changes for the person skilled in the art. Any modification, equivalent replacement, improvement, etc. within the spirit and principle of the utility model should be included in the protection scope of the utility model.
Claims
1. A continuously curvability turning pipe section, characterized by, The utility model relates to a pipe joint with continuous variable curvature, which comprises a cylinder (1), an outer spherical head (2), an inner spherical head (4) and a connecting block (6), wherein the outer spherical head (2) is fixed to the first end of the cylinder (1), the inner spherical head (4) is fixed to the second end of the cylinder (1), a bottom block (5) is arranged on the inner wall of the cylinder (1) and close to the inner spherical head (4), the connecting block (6) is detachably connected to the bottom block (5) and extends out of the inner spherical head (4), a connecting pin (3) is arranged on the inner periphery of the outer spherical head (2), and a plug hole (9) is arranged on the connecting block (6) for the movable plug connection of the connecting pin (3) of an adjacent pipe joint.
2. The continuously-curved- cornering tube segment of claim 1, wherein, The plug hole (9) is a waist-shaped hole or a strip-shaped hole.
3. The continuously-curved- cornering tube segment of claim 1, wherein, The outer spherical head (2) and the inner spherical head (4) are both annular.
4. The continuously-curved- cornering tube segment of claim 3, wherein, The number of the connecting pins (3) is four, and the four connecting pins (3) are uniformly distributed on the inner peripheral wall of the outer spherical head (2).
5. The continuously-curved- cornerable tube segment of claim 3, wherein, The number of the bottom blocks (5) is four, and the four bottom blocks (5) are uniformly distributed on the inner peripheral wall of the inner spherical head (4).
6. The continuously-curved- cornerable tube segment of claim 5, wherein, The number of the connecting blocks (6) is two, and the two connecting blocks (6) are detachably connected to the two opposite bottom blocks (5).
7. The continuously-curved-arc-turning tube section according to claim 1, characterized by, The connecting block (6) is connected to the bottom block (5) through a bolt (7).
8. A pipe jacking machine characterized by, The utility model relates to a pipe joint with continuous variable curvature, which comprises a cylinder (1), an outer spherical head (2), an inner spherical head (4) and a connecting block (6), wherein the outer spherical head (2) is fixed to the first end of the cylinder (1), the inner spherical head (4) is fixed to the second end of the cylinder (1), a bottom block (5) is arranged on the inner wall of the cylinder (1) and close to the inner spherical head (4), the connecting block (6) is detachably connected to the bottom block (5) and extends out of the inner spherical head (4), a connecting pin (3) is arranged on the inner periphery of the outer spherical head (2), and a plug hole (9) is arranged on the connecting block (6) for the movable plug connection of the connecting pin (3) of an adjacent pipe joint.