Clamp suitable for pipeline connection
By designing clamps suitable for pipe connections and adopting structures such as limiting plates, reinforcing ring plates, and limiting bolts, the problem of flange connections loosening under high temperature and high pressure is solved, thereby improving stability and sealing, adapting to different flange specifications, and reducing the risk of leakage.
Patent Information
- Application Number
- CN202422305457.5
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-09-19
- Publication Date
- 2025-11-21
- Estimated Expiration
- 2034-09-19
AI Technical Summary
Existing flange connections are prone to loosening under prolonged use or high temperature and pressure environments, leading to unstable pipe connections and reduced sealing, resulting in leakage and safety hazards.
Design a clamp including a clamp ring, a limiting plate, a reinforcing ring plate, a limiting ear, and a limiting bolt. The clamp adapts to flanges of different sizes through the tilting and deformation groove of the limiting plate, the locking of the clamp ring and the locking tongue, and the fixing of the limiting ear and the limiting bolt, ensuring a stable connection of the clamp under high pressure and high temperature.
It improves the stability and sealing of pipe connections, enhances adaptability to flanges of different specifications, reduces the risk of leakage, extends service life, and reduces the risk of loosening and falling off due to misoperation or external force.
Smart Images
Figure CN223579225U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The application relates to the technical field of pipe connection, in particular to a clamp suitable for pipe connection. BACKGROUND
[0002] In industrial production, flange connection is a commonly used pipe connection mode, which is usually used for connecting pipe fittings to form a complete pipe system.
[0003] According to different connection requirements and materials, flange connections are divided into different types, such as rotary flanges, butt-welded flanges and flange socket joints. In the flange connection, the two symmetrical flange plates are usually fixed and connected through bolts and nuts.
[0004] With the increase of pipe use time, pipe loosening or expansion, contraction may gradually occur. In some high temperature and high pressure environments, fatigue cracks or loosening of the flange connection between the pipes may occur. The above conditions will reduce the stability and sealing performance of the pipe connection, and the fluid in the pipe may leak or leak, which may cause safety hazards. CONTENT OF THE INVENTION
[0005] In order to improve the flange connection prone to pipe loosening and improve the stability and sealing performance of the pipe connection position, the application provides a clamp suitable for pipe connection.
[0006] The clamp suitable for pipe connection provided by the application adopts the following technical scheme:
[0007] A clamp suitable for pipe connection, comprising a hoop, an interface is formed on the hoop, a buckle and a buckle tongue are arranged at the two ends of the hoop at the interface position for mutual buckling, limit plates are symmetrically arranged on the two sides of the hoop, and the hoop and the two limit plates jointly form a limit groove for clamping the edge of the flange plate.
[0008] By adopting the above technical scheme, the clamp can be tightly fixed on the edge of the flange plate by arranging the limit plates on the two sides of the hoop, and the buckle and the buckle tongue are arranged in cooperation to lock at the interface position of the hoop, so as to effectively prevent the loosening of the pipe due to long-term use or environmental changes such as temperature and pressure, enhance the sealing performance of the pipe connection, and reduce the risk of fluid leakage or leakage.
[0009] Further, the limit plate is inclined from the side connected with the hoop to the outside of the limit groove.
[0010] By adopting the above technical scheme, the inclination of the limiting plate makes the limiting groove of the clamp have a certain elasticity, and also equivalent to the variable diameter setting of the inner wall of the limiting groove, so that the inner diameter of the limiting groove can adapt to flanges of different sizes and shapes, increasing the versatility and applicability of the clamp, so that the same clamp can be adapted to different specifications of pipeline connections. The inclined limiting plate can guide the clamp to smoothly slide into the edge of the flange during installation, reducing the installation difficulty and improving the installation efficiency.
[0011] Further, a plurality of deformation grooves are circumferentially arranged on the limiting plate.
[0012] By adopting the above technical scheme, the deformation groove makes the limiting plate have a certain elastic deformation capacity, and when the clamp is installed on the edge of a flange of different size or shape, the limiting plate can adapt to the size difference through the deformation of the deformation groove, ensuring that the clamp can be closely attached to the flange, increasing the versatility and adaptability of the clamp, so that it can be applied to more types of pipeline connections. The deformation groove makes the hoop ring locally deform when subjected to pressure, thereby filling the small uneven areas of the flange edge, increasing the contact area between the hoop ring and the flange, improving the sealing performance of the connection, and reducing the risk of fluid leakage or leakage.
[0013] Further, a reinforcing ring plate is arranged on the outer side wall of the hoop ring, and the reinforcing ring plate is fixedly connected with the hoop ring.
[0014] By adopting the above technical scheme, the arrangement of the reinforcing ring plate can increase the radial and axial strength of the hoop ring, so that the overall carrying capacity of the clamp is improved. In the pipeline system operation or under high pressure, high temperature and vibration working conditions, the reinforcing ring plate can effectively prevent the hoop ring from deforming or breaking, thereby maintaining the stability and reliability of the clamp. The reinforcing ring plate can also resist external corrosion and erosion to some extent, maintain the integrity and functionality of the clamp, reduce damage to the hoop ring due to fatigue during long-term use, and thereby prolong the service life of the clamp.
[0015] Further, a reinforcing ring plate is arranged on the outer side wall of the hoop ring, and the reinforcing ring plate is fixedly connected with the hoop ring.
[0016] By adopting the above technical scheme, the connecting seat and the latch are located on the two sides of the interface, and the close fit and fixation are realized by the rotation connection of the buckle, ensuring the stability and reliability of the pipeline connection. The limiting ear can limit the back-off position of the buckle, avoiding the relative displacement or back-off misalignment between the buckle and the connecting seat during operation, thereby avoiding the disconnection of the buckle ring and the latch due to the loose buckle. The arrangement of the limiting ear ensures that the buckle ring can be accurately and stably fixed on the connecting seat when closed, thereby enhancing the stability and reliability of the pipeline connection.
[0017] Further, the limiting lug is at least two, and the two limiting lugs are symmetrically arranged on both sides of the connecting seat. When the buckle is buckled back and abuts against the connecting seat, the two opposite sides of the buckle abut between the two limiting lugs.
[0018] By adopting the above technical scheme, the limiting lug is symmetrically arranged on both sides of the connecting seat, so that the two sides of the buckle can be supported and limited by the limiting lug when buckled back. When the buckle is buckled back and abuts against the connecting seat, the two sides of the buckle are clamped by the two limiting lugs, which prevents the misoperation of the operator from causing the buckle to not be completely buckled in place, increases the stability of the clamp in the closed state, prevents the buckle ring from loosening or falling off due to pipeline vibration or other external forces, and helps to reduce pipeline connection problems or safety accidents caused by misoperation.
[0019] Further, the clamp suitable for pipeline connection further comprises a limiting bolt and a locking nut, a first through hole is formed in the limiting lug, and a second through hole is formed in the side wall of the buckle at a position corresponding to the first through hole.
[0020] When the buckle is buckled back to abut against the connecting seat, the first through hole and the second through hole are in communication with each other, the limiting bolt passes through the first through hole and the second through hole and is threadedly fixed with the locking nut.
[0021] By adopting the above technical scheme, when the buckle is buckled back to abut against the connecting seat, the limiting bolt passes through the first through hole and the second through hole and is fixed by the locking nut, which ensures that the buckle is firmly locked in the correct position, enhances the stability and safety of the pipeline connection, and reduces the risk caused by loose or falling connection. When the buckle is in the locked state, the cooperation of the limiting bolt and the locking nut provides additional support and fixing effect, which can effectively prevent the buckle from rebounding accidentally due to external force or vibration, further enhancing the stability and safety of the connection.
[0022] Further, a guide slope for opening the buckle is arranged on the side wall of the buckle, and the guide slope is located on the side of the buckle away from the rotating connection with the connecting seat.
[0023] By adopting the above technical scheme, when the buckle is in the buckled state, the guide slope is arranged on the side wall of the buckle, which provides a space for the hand of the operator or the auxiliary tool to extend below the buckle, thereby facilitating the operator to open the buckle.
[0024] Further, a lower limiting piece is arranged between the two limiting lugs on the connecting seat, the lower limiting piece is arranged along the width direction of the connecting seat and perpendicular to the connecting seat, and an upper limiting piece matched with the lower limiting piece is arranged on the side of the buckle close to the connecting seat.
[0025] The upper limiting sheet and the lower limiting sheet are provided with an adjusting bolt, the adjusting bolt is threadedly connected with the lower limiting sheet, and the adjusting bolt is slidingly connected with the upper limiting sheet.
[0026] The first through hole is a waist-shaped hole.
[0027] By adopting the above technical scheme, the thread connection between the adjusting bolt and the lower limiting sheet can provide stable fixing force, so that the buckle can be accurately positioned at the required position. At the same time, the waist-shaped hole allows the fiber bolt to move within a certain range, so that the operator can more finely adjust the position of the buckle, improving the connection accuracy. The operator only needs to rotate the adjusting bolt to adjust the position of the buckle, simplifying the installation process. The movement of the adjusting bolt on the upper and lower limiting sheets can fine-tune the relative position between the buckle and the connecting seat, so that the clamp can better adapt to the connection requirements of pipes of different sizes and shapes during installation, enhancing the flexibility of the connection.
[0028] Further, the adjusting bolt is provided with a slot at the position of the bolt head for inserting an auxiliary tool.
[0029] By adopting the above technical scheme, the slot is provided to facilitate the operator to use an auxiliary tool (such as a screwdriver or wrench) to rotate the adjusting bolt, reducing the inconvenience and difficulty that may be caused by direct contact of the hand with the bolt head, and improving the convenience and efficiency of operation.
[0030] In summary, the present application has at least one of the following beneficial technical effects:
[0031] 1. The buckle and the tongue enable the interface position of the clamp ring to be buckled, preventing loosening of the pipe due to long-term use or environmental changes, enhancing the sealing performance of the pipe connection, and the inclined limiting plates on both sides of the clamp ring are provided with deformation grooves, so that the clamp can tightly fit flanges of different sizes and shapes, further improving the stability and sealing performance of the connection;
[0032] 2. The setting of the reinforcing ring plate increases the radial and axial strength of the clamp ring, improves the overall carrying capacity of the clamp, and enables it to cope with complex working conditions such as high pressure, high temperature and vibration. The design of the limiting ears and the limiting bolts ensures the stability and safety of the buckle in the closed state, avoids loosening or falling off of the buckle due to misoperation or external force, effectively prevents the buckle from rebounding accidentally due to external force or vibration, and further enhances the stability and safety of the connection;
[0033] 3. The cooperation of the adjusting bolt and the upper and lower limiting sheets facilitates the operator to fine-tune the position of the buckle to adapt to different installation requirements, and the slot facilitates the use of an auxiliary tool to rotate the adjusting bolt, improving the convenience and efficiency of operation. BRIEF DESCRIPTION OF DRAWINGS
[0034] Figure 1 is a schematic diagram of the overall structure of a clamp suitable for pipeline connection and clamped on a flange plate in an embodiment of the present application.
[0035] Figure 2 is a schematic diagram of the overall structure of a clamp suitable for pipeline connection in an embodiment of the present application.
[0036] Figure 3 is an exploded schematic diagram of the structure of a clamp suitable for pipeline connection in an embodiment of the present application.
[0037] Figure 4 is an exploded schematic diagram of the structure of a clamp suitable for pipeline connection in an embodiment of the present application.
[0038] Figure 5 is a schematic diagram of the structure of a clamp suitable for pipeline connection in an embodiment of the present application.
[0039] Figure 6 is a schematic diagram of the structure of a clamp suitable for pipeline connection in an embodiment of the present application.
[0040] BRIEF DESCRIPTION OF DRAWINGS: 0, pipeline; 01, flange plate; 1, clamp ring; 11, interface; 2, clamping ring; 3, clamping tongue; 4, limiting plate; 41, limiting groove; 42, deformation groove; 5, reinforcing ring plate; 6, connecting seat; 61, limiting lug; 611, first through hole; 62, lower limiting piece; 7, buckle; 71, second through hole; 72, guide slope; 73, upper limiting piece; 8, limiting bolt; 9, locking nut; 10, adjusting bolt; 101, insertion slot. DETAILED DESCRIPTION
[0041] In order to make the purpose, technical scheme and advantages of the present application more clear, the following will further describe the present application in detail with reference to the accompanying drawings. Figures 1-6 , Example 1 and Example 2.
[0042] Example 1
[0043] The present application discloses a clamp suitable for pipeline 0 connection. Referring to Figure 1 , the clamp suitable for pipeline 0 connection is sleeved and clamped on the flange plate 01 at the pipeline 0 connection position. Referring to Figure 1 and Figure 2 , the clamp includes a clamp ring 1, a clamping ring 2 and a clamping tongue 3. The clamp ring 1 is provided with an interface 11 for opening the clamp and installation, and the clamping ring 2 and the clamping tongue 3 are respectively arranged at both ends of the clamp ring 1 for clamping the interface 11 position of the clamp ring 1.
[0044] The two sides of the hoop ring 1 in the embodiment are symmetrically provided with limiting plates 4, both of which are integrally connected with the hoop ring 1, and the two limiting plates 4 and the hoop ring 1 jointly form a limiting groove 41 for clamping the flange plate 01. The limiting plate 4 is obliquely arranged from the side connected with the hoop ring 1 to the outside of the limiting groove 41, which is equivalent to making a variable-diameter arrangement inside the limiting groove 41, so that the hoop ring 1 can adapt to flange plates 01 of different thickness specifications.
[0045] A plurality of deformation grooves 42 are arranged on the limiting plate 4 in a circumferential direction, and in the embodiment, the shape of the deformation groove 42 is preferably a trapezoidal groove, and the number of the deformation grooves 42 on each limiting plate 4 is two. When the clasp ring 2 and the clasp tongue 3 are mutually buckled, the line connecting the two deformation grooves 42 and the interface 11 is an equilateral triangle.
[0046] Referring to Figure 3 and Figure 4 In the embodiment, the outer wall of the hoop ring 1 is fixedly connected with a reinforcing ring plate 5, the clasp tongue 3 is fixedly connected to one end of the reinforcing ring plate 5, a connecting seat 6 for mounting the clasp tongue 3 is arranged on the end of the reinforcing ring plate 5 away from the clasp tongue 3, and the connecting seat 6 is fixedly connected to the reinforcing ring plate 5.
[0047] A clasp 7 is rotationally connected to one side of the connecting seat 6 close to the clasp tongue 3, and the clasp ring 2 is rotationally connected to the clasp 7. A limiting lug 61 is arranged on the side of the connecting seat 6 away from the clasp 7, and in the embodiment, the number of the limiting lugs 61 is two and they are symmetrically arranged on both sides of the connecting seat 6. When the clasp 7 is buckled to abut against the connecting seat 6, the two outer side walls of the clasp 7, which are opposite to each other, abut against the two opposite surfaces of the two limiting lugs 61, respectively.
[0048] In order to avoid the situation that the clasp ring is loosened or even falls off due to the rebound of the clasp 7 caused by the influence of the pipeline 0, the clasp 7 in the embodiment is provided with a limiting bolt 8 and a locking nut 9. A first through hole 611 is arranged at the center position of the limiting lug 61, a second through hole 71 is arranged at the corresponding position of the clasp 7 relative to the first through hole 611, the first through hole 611 and the second through hole 71 are in communication with each other when the clasp 7 is buckled to abut against the connecting seat 6, and the limiting bolt 8 is threadedly fixed with the locking nut 9 by penetrating through the second through hole 71 and the first through hole 611. In order to avoid the situation that the limiting bolt 8 cannot penetrate due to the hole error, the diameter of the first through hole 611 is slightly larger than the diameter of the second through hole 71 in the embodiment.
[0049] When the clasp ring needs to be disassembled, in order to facilitate the opening of the clasp 7 in the buckled state, the two opposite side walls of the clasp 7 are symmetrically provided with guide inclined surfaces 72 in the embodiment, and the guide inclined surfaces 72 are located on the side of the clasp 7 away from the connecting seat 6. The operator can put his hand or auxiliary tools into the space below the clasp 7 through the guide inclined surfaces 72, so as to open the clasp 7.
[0050] The implementation principle of the clamp suitable for pipeline 0 connection in the embodiment of the application is as follows: an interface 11 is arranged on a hoop ring 1, which is used to open the clamp during installation; a buckle ring 2 and a buckle tongue 3 are arranged at two ends of the hoop ring 1 respectively, which are used to buckle the interface 11 of the hoop ring 1, so as to fix the clamp on a flange plate 01 at a pipeline 0 connection position. Limiting plates 4 are symmetrically arranged at two sides of the hoop ring 1, and form limiting grooves 41 together with the hoop ring 1 to clamp the flange plate 01; the limiting plates 4 are inclined outward, which is equivalent to making the limiting grooves 41 have variable diameters, so that the clamp can adapt to flange plates 01 of different thicknesses. Deformation grooves 42 can improve the deformation ability of the limiting plates 4, and further enhance the adaptability to flange plates 01 of different specifications. A reinforcing ring plate 5 is fixedly connected to the outer wall of the hoop ring 1, and provides additional support and strength. In order to avoid loosening of the clamp due to the influence of the pipeline 0, a limiting bolt 8 and a locking nut 9 are arranged on a buckle 7; when the buckle 7 abuts against a connecting seat 6, the limiting bolt 8 passes through the through holes on the buckle 7 and the connecting seat 6, and is fixed by using the locking nut 9, so as to prevent the buckle 7 from rebounding, and ensure the fastening of the clamp.
[0051] Embodiment 2
[0052] In combination Figure 5 and Figure 6 with the embodiment 1, the difference between the embodiment and the embodiment 1 is that a lower limiting sheet 62 is fixedly connected to the connecting seat 6 in the width direction and perpendicularly on the side away from the reinforcing ring plate 5. An upper limiting sheet 73 is fixedly connected to the buckle 7 perpendicularly on the side close to the connecting seat 6. The upper limiting sheet 73 and the lower limiting sheet 62 are vertically provided with an adjusting bolt 10 for fine adjustment of the position of the buckle 7. The adjusting bolt 10 is threadedly connected between the lower limiting sheet 62 and is slidingly connected with the upper limiting sheet 73, and the adjusting bolt 10 is perpendicular to the limiting bolt 8. In the embodiment, the first through hole 611 on the limiting lug 61 is provided as a waist-shaped hole, and an operator rotates the adjusting bolt 10 to fine adjust the buckle 7 to a suitable position, and then inserts the limiting bolt 8 into the first through hole 611 and the second through hole 71 and locks by using the locking nut 9, so as to fix the position of the buckle 7.
[0053] Since the adjusting bolt 10 is located below the buckle 7, it may be inconvenient to rotate the adjusting bolt 10. In the embodiment, an insertion slot 101 is arranged at the position of the head of the adjusting bolt 10, which is used for insertion of an auxiliary tool. In the embodiment, the insertion slot 101 is preferably an internal hexagonal insertion slot 101, and a smaller diameter internal hexagonal wrench can be inserted below the buckle 7 to rotate the adjusting bolt 10.
[0054] The above are preferred embodiments of the application, and do not limit the protection scope of the application, so that: any equivalent changes made on the basis of the structure, shape, principle of the application should be covered within the protection scope of the application.
Claims
1. A clamp suitable for use in the connection of pipes, characterised in that: The utility model provides a kind of clamp ring (1), the interface (11) is opened in the clamp ring (1), the both ends of the clamp ring (1) are respectively provided with buckle ring (2) and buckle tongue (3) for mutual buckling at the position of the interface (11), the both sides of the clamp ring (1) are symmetrically provided with limiting plate (4), the clamp ring (1) and two the limiting plate (4) jointly form the limiting groove (41) for clamping flange edge.
2. A clamp suitable for use in pipe connections according to claim 1, characterized in that: The limiting plate (4) is obliquely arranged outside the limiting groove (41) from the side connected with the clamp ring (1).
3. A clamp suitable for use in pipe connections according to claim 1, characterized in that: A plurality of deformation grooves (42) are circumferentially spaced apart on the limiting plate (4).
4. A clamp suitable for use in pipe connections according to claim 1, characterized in that: A reinforcing ring plate (5) is arranged on the outer side wall of the clamp ring (1), and the reinforcing ring plate (5) is fixedly connected with the clamp ring (1).
5. A clamp suitable for use in the connection of pipes according to claim 4, characterised in that: One end of the reinforcing ring plate (5) is fixedly connected with a connecting seat (6) for mounting the buckle ring (2), and the buckle tongue (3) is fixedly connected to the side of the reinforcing ring plate (5) away from the connecting seat (6), and the connecting seat (6) and the buckle tongue (3) are located on both sides of the interface (11), respectively. A clasp (7) is rotatably connected to the side of the connecting seat (6) close to the buckle tongue (3), and the buckle ring (2) is rotatably connected to both sides of the clasp (7), and a limiting lug (61) for limiting the back buckling position of the clasp (7) is arranged on the side of the connecting seat (6) away from the clasp (7).
6. A clamp suitable for use in pipe connections according to claim 5, characterized in that: The limiting lug (61) is at least two, and the two limiting lugs (61) are symmetrically arranged on both sides of the connecting seat (6), when the clasp (7) is back buckled and abuts against the connecting seat (6), the two sides of the clasp (7) away from each other abut between the two limiting lugs (61).
7. A clamp suitable for use in pipe connections according to claim 6, characterized in that: A limiting bolt (8) and a locking nut (9) are further included, a first through hole (611) is formed in the limiting lug (61), and a second through hole (71) is formed in the side wall of the clasp (7) at the corresponding position of the first through hole (611). When the clasp (7) is back buckled to abut against the connecting seat (6), the first through hole (611) and the second through hole (71) are in communication with each other, the limiting bolt (8) passes through the first through hole (611) and the second through hole (71) and is threadedly fixed with the locking nut (9).
8. A clamp suitable for use in pipe connections according to claim 5, characterized in that: A guide slope (72) for opening the clasp (7) is arranged on the side wall of the clasp (7), and the guide slope (72) is located on the side of the clasp (7) away from the rotating connection with the connecting seat (6).
9. A clamp suitable for use in pipe connections according to claim 7, characterized in that: A lower limiting piece (62) is arranged between the two limiting lugs (61) on the connecting seat (6), the lower limiting piece (62) is arranged along the width direction of the connecting seat (6) and perpendicular to the connecting seat (6), and the clasp (7) is provided with an upper limiting piece (73) matched with the lower limiting piece (62) on the side close to the connecting seat (6). The upper limiting sheet (73) is provided with an adjusting bolt (10) penetrating thereon, the adjusting bolt (10) is threadedly connected with the lower limiting sheet (62), the adjusting bolt (10) is slidingly connected with the upper limiting sheet (73), and the adjusting bolt (10) is perpendicular to the limiting bolt (8). The first through hole (611) is a waist-shaped hole.
10. A clamp suitable for use in pipe connections according to claim 9, characterized in that: The adjusting bolt (10) is provided with an insertion slot (101) at the position of the bolt head for inserting an auxiliary tool.