Pipe connecting mechanism

Abstract

The utility model provides a pipe connecting mechanism. The pipe connecting mechanism comprises a surrounding piece and a clamping assembly. The surrounding part comprises a first surrounding sub-part and a second surrounding sub-part, the first surrounding sub-part comprises a first hinge part, a first free part and a first sealing sub-groove formed in the inner side of the first surrounding sub-part, and the second surrounding sub-part comprises a second hinge part, a second free part and a second sealing sub-groove formed in the inner side of the second surrounding sub-part; the first hinge part is connected with the first hinge part and the second hinge part; the clamping assembly comprises a clamping head, a clamping part and an operating handle, the clamping head is arranged on the first free part, the operating handle is fixedly arranged on the clamping head, and the clamping part is arranged on the second free part; and the distance adjusting assembly comprises a distance adjusting main piece arranged on the clamping head and a distance adjusting auxiliary piece arranged on the first free part, so that the distance between the clamping head and the first free part is adjusted, and the locking state is kept after the distance is adjusted to a preset distance. Pipeline connection can be achieved without the help of tools.

Description

Technical Field

[0001] This utility model belongs to the technical field of pipeline equipment, and in particular relates to a pipe connection mechanism for connecting two adjacent pipes in a pipeline. Background Technology

[0002] The background information related to this utility model provided in this section may not all be prior art, and may contain content that does not constitute prior art.

[0003] Since the length of each pipe is usually determined at the factory, while the length of the pipe is often set according to actual needs during pipe installation, in addition to the pipes, a connecting mechanism is also needed to connect the two pipes during pipe installation.

[0004] To connect the pipes, the connection mechanism must first be opened. Therefore, the connection mechanism is generally composed of two enclosure parts, with the hinged side of one enclosure part hinged to the hinged side of the other enclosure part. Before enclosure, the free sides of the two enclosure parts must be opened first, and the two pipes to be connected must be inserted into them. Then, a tool is used to fix the free sides of the two enclosure parts together with a connecting bolt. Conversely, when opening, a tool is also needed to disassemble the connecting bolt before it can be opened. This is time-consuming and laborious for pipe installers, who also need to carry installation tools.

[0005] In addition, the dimensions of the pipe to be connected and / or the connecting mechanism to connect the pipe may differ from the original design dimensions during manufacturing or after a period of use, which may prevent the pipe to be connected from achieving the preset sealing effect during connection. Utility Model Content

[0006] The purpose of this invention is to provide a pipe connection mechanism that can achieve the connection or separation of pipes without the need for installation tools.

[0007] To achieve the above objectives, this utility model proposes a pipe-type connecting mechanism, comprising:

[0008] Enclosure components, including:

[0009] The first enclosed component includes:

[0010] First hinge section;

[0011] First Freedom Section; and

[0012] The first sealing groove is located on the inner side of the first enclosing component; and

[0013] The second enclosing component includes:

[0014] Second hinge section;

[0015] The Second Freedom Section; and

[0016] The second sealing groove is opened on the inner side of the second enclosing component;

[0017] A first hinge member connects the first hinge portion to the second hinge portion;

[0018] Card-connecting components, including:

[0019] The card head is disposed directly or indirectly on the first free part;

[0020] An operating handle, fixed to the card head, is used to operate the card head; and

[0021] The engaging part is provided on the second free part; and

[0022] A spacing adjustment assembly, connecting the card head and the first free part, is used to adjust the distance between the card head and the first free part, and maintains a locked state after being adjusted to a preset distance, including:

[0023] The main spacing adjustment component is located directly or indirectly on the card head; and

[0024] The spacing adjustment component is disposed directly or indirectly on the first free part;

[0025] When the first enclosing component and the second enclosing component are in the enclosing state, the first free part abuts against the second free part, and the first sealing groove is connected to the second sealing groove front and back.

[0026] Wherein, when the first enclosing component and the second enclosing component are in the enclosing state, and when the engaging component is in the engaging state, the engaging part engages with the engaging head.

[0027] The main spacing adjustment component and the secondary spacing adjustment component cooperate to adjust the distance between the locking head and the first free part by adjusting the relative position between the main spacing adjustment component and the secondary spacing adjustment component, so as to satisfy the following when the locking head engages with the locking part:

[0028] In one or more examples, it also includes:

[0029] The second hinge connects the first free part and the locking head.

[0030] In one or more examples, it also includes:

[0031] The main and secondary spacing adjustment components are screwed together; and

[0032] The length of the screw-fitted portions of the main and secondary spacing adjustment components is controlled by rotating the clamp head, thereby adjusting the distance between the clamp head and the first free portion, so that the clamp head and the clamping portion are engaged when locked.

[0033] In one or more examples, it also includes:

[0034] When a second hinge is provided, the spacing adjustment component is located on the second hinge.

[0035] In one or more examples, it also includes:

[0036] The third hinge is located on the card head;

[0037] The main component for adjusting the spacing is located on the third hinge component.

[0038] In one or more examples, the first hinge portion includes a first convex portion;

[0039] The second hinge portion includes a second convex portion;

[0040] The first free portion includes a third convex portion; and

[0041] The second free portion includes a fourth convex portion;

[0042] The engaging portion is located on the fourth protruding portion;

[0043] The first convex portion and the second convex portion are connected by the first hinge.

[0044] In one or more examples, when a second hinge is provided, the second hinge connects the pitch adjustment sub-part to the third convex portion.

[0045] In one or more examples, the number of the third convex portions is a pair, which are arranged correspondingly in a direction substantially perpendicular to the axis of the enclosure and separated by a first interval region;

[0046] The fourth convex portion is in pairs, and is arranged correspondingly along a direction perpendicular to the axis of the enclosure and separated by a second interval region;

[0047] The number of the engaging parts is one pair, which are spaced apart;

[0048] Wherein, when a second hinge is provided, the second hinge connects the pair of third protruding portions;

[0049] During the encirclement, the pair of third convex portions abut against the pair of fourth convex portions one by one;

[0050] During engagement, the locking head engages with the pair of locking parts simultaneously.

[0051] In one or more examples, when engaged, the spacing adjustment component is substantially located within the area comprised of the first spacing region and the second spacing region.

[0052] In one or more examples, the card header includes a pair of card opening and closing heads;

[0053] When a third hinge is provided, the third hinge connects the spacing adjustment main component and the pair of locking / unlocking heads;

[0054] During engagement, the pair of engagement heads engage with the pair of engagement parts in a one-to-one correspondence.

[0055] In one or more examples, when the engagement is complete, the operating handle is separated from the second enclosure component except for its tail portion, which is substantially abutting against the second enclosure component. The arch formed by the locking head and the operating handle surrounds the radially outer side of the second enclosure component.

[0056] When the arc is engaged, the central angle of the arc corresponding to the arch is greater than 120 degrees and less than 160 degrees.

[0057] In one or more examples, the pitch on the main screw portion and the secondary screw portion must satisfy the following: the accuracy of the length of the screwed portion of the main screw portion on the main screw portion and the secondary screw portion on the secondary screw portion controlled by rotating the chuck is at the millimeter level.

[0058] Additional aspects and advantages of this invention will be set forth in the description which follows, and in part will be obvious from the description or may be learned by practice of the invention. Attached Figure Description

[0059] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0060] Figure 1 This is a front view schematic diagram showing the enclosure member in an enclosing state and the locking component in a locking state in one or more embodiments of the present utility model.

[0061] Figure 2 This is a front view schematic diagram showing the enclosure component in an enclosing state but the locking component not in a locking state in one or more embodiments of the present utility model.

[0062] Figure 3 This is a front view schematic diagram of one or more embodiments of the present invention, showing that the enclosure is not in an enclosing state, but the locking component is not in a locking state.

[0063] Figure 4 This is a structural schematic diagram from one perspective of one or more embodiments of the present invention, showing that the enclosure component is not in an enclosing state and the locking component is not in a locking state.

[0064] Figure 5 This is a structural schematic diagram from another perspective of one or more embodiments of the present invention, showing that the enclosure component is not in an enclosing state and the locking component is not in a locking state.

[0065] Figure 6 This is a structural schematic diagram from one perspective of one or more embodiments of the present invention, showing the enclosure member in an enclosed state and the locking assembly in a locked state.

[0066] Figure 7 This is a structural schematic diagram from another perspective showing the enclosure component in an enclosed state and the locking assembly in a locked state in one or more embodiments of the present invention.

[0067] Figure 8 This is a schematic diagram of the structure in one or more embodiments of the present invention, where the enclosure component is in an enclosing state but the locking component is not in a locking state.

[0068] The accompanying drawings are for illustrative purposes only and are not intended to be drawn to scale. The same reference numerals are used to indicate the same elements in the drawings. For simplicity, not every component is numbered in every drawing. Detailed Implementation

[0069] The present invention will be described below with reference to several examples. It should be understood that these embodiments are described in order to enable those skilled in the art to better understand and implement the present invention, and do not imply any limitation on the scope of the present invention.

[0070] Since the pipeline is composed of multiple pipes connected together, the equipment for connecting two pipes, namely the connecting mechanism for connecting pipes, currently uses bolts and nuts for connection. In order to tighten the bolts and nuts, there must be relevant installation tools for tightening the bolts and nuts. Otherwise, if they are not tightened, the connection between the pipes will not be sealed, and the fluid flowing inside the pipe may flow out to the outside.

[0071] Considering the above circumstances, the operator installing the pipe connection mechanism must carry the installation tools for tightening the bolts and nuts, which increases the operator's workload. In particular, when the operation site is located at a higher elevation and there is no road for vehicles to pass through the higher elevation, the operator must carry the installation tools on their back and climb up the higher elevation.

[0072] In order to make it possible to solve the above problems, one embodiment of the present invention includes a closing component, a locking component, and a spacing adjustment component.

[0073] Working method: The distance between the locking component and the enclosure is adjusted by the spacing adjustment component. The enclosure is tightly closed by the locking component, and the state of the enclosure tightly closed remains basically unchanged when the locking component is engaged.

[0074] Enclosure

[0075] The two ends of the enclosure are separable. When installing and connecting two pipes, the inner side of the enclosure mates with the radial outer side of the adjacent end of the two pipes to be connected.

[0076] The enclosure can be composed of two or more enclosure components, each of which can be an independent part, and all the enclosure components are connected end to end in sequence.

[0077] It should be noted that the shapes and sizes of the individual components in the aforementioned enclosure can be the same or different.

[0078] To ensure a tight seal after the two pipes are connected, a sealing groove is provided on the inner side of each enclosure component. The direction and length of the sealing groove are adapted to the direction and length of the inner side of the enclosure component that it mates with. This arrangement ensures that all the sealing grooves on the enclosure component remain connected end to end when the components are closed, forming a circular sealing groove. This allows a circular sealing element (such as a sealing ring) to be installed in the sealing groove of the enclosure component.

[0079] The enclosure is made of a material with a predetermined hardness, such as an iron-containing alloy, or, depending on the requirements, an engineering-grade plastic. The principle for selecting the material for this enclosure is that its hardness is at least comparable to that of the material of the pipe to be connected.

[0080] In one or more examples, such as Figure 1-8 As shown, the enclosure consists of two enclosure components, namely a first enclosure component 110 and a second enclosure component 120. The structures of the portions of the first and second enclosure components 120 used to enclose the pipe are basically the same. Specifically, if the cross-section of the pipe to be connected is circular, such as... Figure 1-8 As shown, the inner sides of the first and second enclosing components are each semi-circular structures. If the cross-section of the pipe to be connected is rectangular, then the inner sides of the first and second enclosing components are adapted to the structures on the left and right sides of the center line of the rectangle, respectively. In short, the size and shape of the inner side of the enclosing component must be adapted to the size and shape of the cross-section of the pipe to be enclosed.

[0081] like Figure 1 , 2 As shown in Figure 3, in addition to the structures required on its inner side as described above, the first enclosing component 110 also includes a first hinge portion 111 and a first free portion 112. The first hinge portion 111 is located at one end of the first enclosing component 110, and the first free portion 112 is located at the other end of the first enclosing component 110. Correspondingly, in addition to the structures required on its inner side as described above, the second enclosing component 120 also includes a second hinge portion 121 and a second free portion 122. The second hinge portion 121 is located at one end of the second enclosing component 120, and the second free portion 122 is located at the other end of the second enclosing component 120.

[0082] like Figure 1 , 2 As shown in Figure 3, the first hinge portion 111 on the first enclosing component 110 and the second hinge portion 121 on the second enclosing component 120 are hinged together by a first hinge shaft 210 (a structure of the first hinge member). This allows the first enclosing component 110 and the second enclosing component 120 to rotate relative to each other, enabling the other end of the first enclosing component 110 to separate from or approach the other end of the second enclosing component 120.

[0083] like Figure 3 , 5 As shown, the first free part 112 is located at the other end of the first enclosing component 110, and the second free part 122 is located at the other end of the second enclosing component 120. The first free part 112 and the second free part 122 can rotate around the first hinge axis 210, and their movement trajectory is relatively long compared to the trajectory of most other rotations on the enclosing component.

[0084] like Figure 5 , 7 As shown in Figure 8, a first sealing groove 113 is provided on the inner side of the first enclosing component 110, and a second sealing groove 123 is provided on the inner side of the second enclosing component 120. When the first enclosing component 110 and the second enclosing component 120 are closed, the first sealing groove 113 and the second sealing groove 123 form a ring-shaped sealing groove that is connected end to end.

[0085] It should be noted that when the enclosure has more than two enclosure components, in addition to the aforementioned first enclosure component 110 and second enclosure component 120, the two ends of the other enclosure components are respectively hinged to one of the adjacent enclosure components. That is, the two ends of the other enclosure components are all set as the hinged parts, and the aforementioned first enclosure component 110 and second enclosure component 120 are respectively located at both ends of the enclosure component.

[0086] In one or more examples of this enclosing component, both ends are provided with radially outwardly extending convex portions, for example, such as... Figure 1 , 2 As shown in Figure 3, the first hinge portion 111 of the first enclosing component 110 is provided with a first protruding portion 1111, and the first free portion 112 of the first enclosing component 110 is provided with a third protruding portion 1121; the second hinge portion 121 of the second enclosing component 120 is provided with a second protruding portion 1211, and the second free portion 122 of the second enclosing component 120 is provided with a fourth protruding portion 1221.

[0087] When the aforementioned enclosing component is provided with the protruding portion, in one or more examples, the hinge connects the protruding portions of two adjacent enclosing components. For example, such as Figure 1 , 2 As shown in Figure 3, the first hinge shaft 210 (a structure of the first hinge member) connects the first hinge portion 111 on the first enclosing component 110, which has a first protruding portion 1111, and the second hinge portion 121 on the second enclosing component 120, which has a second protruding portion 1211.

[0088] When the aforementioned enclosing component is provided with the protruding portion, in one or more examples, the number of protruding portions provided on at least one end of at least one of the enclosing components is a pair, arranged parallel to each other, with a gap between the pair of protruding portions. For example, such as Figure 5 , 7 As shown in Figure 8, the number of third protruding portions 1121 is a pair, which are parallel to each other and substantially perpendicular to the axis of the enclosure. The pair of third protruding portions 1121 are spaced apart, with a first gap area 114 between them. The number of fourth protruding portions 1221 is also a pair, which are parallel to each other and substantially perpendicular to the axis of the enclosure. The pair of fourth protruding portions 1221 are spaced apart, with a second gap area 124 between them. At this time, the number of engaging portions 330 is the same as the number of fourth protruding portions 1221, which is also a pair, that is, all the engaging portions 330 are respectively provided on the fourth protruding portions 1221.

[0089] After the enclosure is completed, the first interval region 114 and the second interval region 124 are connected.

[0090] Card assembly

[0091] The engaging assembly includes a locking head directly or indirectly disposed on the first free portion of the first enclosing component and an engaging portion disposed on the second free portion of the second enclosing component. The locking head and the engaging portion are engaged in a locking fit.

[0092] In one example of the engaging assembly, the locking head is directly or indirectly fixedly disposed on the first free portion of the first enclosing component; that is, in one or more examples, the position of the locking head relative to the first free portion of the first enclosing component remains relatively fixed. For this structure, to achieve the engaging engagement, the first enclosing component is rotated, causing the locking head on the first free portion of the first enclosing component to move towards the engaging portion on the second free portion of the second enclosing component, thereby achieving final engagement.

[0093] Another example of the engaging assembly is that the locking head is directly or indirectly hinged to the first free portion of the first enclosing component, meaning that in one or more examples, the locking head rotates relative to the first free portion of the first enclosing component within a predetermined angle range. For example, a second hinge shaft (a structure of a second hinge member) connects the locking head and the first free portion. When the third protruding portion is provided on the first free portion, the second hinge shaft (a structure of a second hinge member) connects the locking head and the third protruding portion included in the first free portion. Additionally, as... Figure 5 As shown, when there is a pair of third convex portions 1121, the second hinge shaft 220 (a structure of the second hinge member) connects the pair of third convex portions 1121. In addition, when the following pitch adjustment assembly is provided, the second hinge shaft 220 is also connected to the adjusting bolt 411, which is a pitch adjustment sub-component in the pitch adjustment assembly.

[0094] An example of this card joint, such as Figure 1 , 2 As shown in Figure 3, the engaging portion 330 is a curved structure, including a first engaging portion 331 and a second engaging portion 332. An arc-shaped transition portion 333 is provided between the first engaging portion 331 and the second engaging portion 332. An arc-shaped chamfered portion 334 is provided on the side of the first engaging portion 331 away from the second engaging portion 332. The portion of the locking head 310 that engages with the engaging portion 330 is an arc-shaped structure. The arc-shaped chamfered portion 334 reduces the probability of the locking head 310 colliding with the engaging portion 330 when entering or exiting it, or reduces the force of any collision. In the engaged state, the portion of the locking head 310 that engages with the engaging portion 330 simultaneously abuts against the first engaging portion 331, the second engaging portion 332, and the arc-shaped transition portion 333.

[0095] When the second hinge is provided, during the engagement process, the locking head 310 rotates past the arc-shaped transition portion 333 and engages within the engagement area enclosed by the engagement first portion 331, the engagement second portion 332, and the arc-shaped transition portion 333.

[0096] In another example of the above-mentioned engaging assembly, during the engaging process, in addition to rotating the first enclosing component to bring the locking head on the first free portion of the first enclosing component closer to the engaging portion on the second free portion of the second enclosing component, the locking head can also be rotated so that the part of the locking head that interacts with the engaging portion is directly opposite the engaging portion, thereby achieving final engagement.

[0097] Compared to one example of the engagement assembly described above, another example of the engagement assembly has a structure that may reduce the probability of the locking head and the engagement part colliding during engagement, and correspondingly may reduce the magnitude of the force required during engagement.

[0098] Another example of this card-connecting component, such as Figure 1-8 As shown, it also includes an operating handle 320, which is fixed to the latch 310, meaning that the position of the operating handle 320 relative to the latch 310 remains essentially unchanged. This allows control of the latch 310 by manipulating the operating handle 320. This is based on the lever principle, that is, under the same torque, the required force is reduced by increasing the length of the lever arm. The design of this operating handle may be more important for connecting mechanisms that require a relatively large torque.

[0099] An example of this operating handle, such as Figure 1 , 7 As shown, the combination of the operating handle 320 and the locking head 310 is roughly formed as a radially outward protruding arc-shaped structure. When the engaging assembly is in the engaged state, the top of the arc-shaped structure protrudes outward, and both ends of the arc-shaped structure (i.e., one end is the locking head 310, and the other end is the end of the operating handle 320 away from the locking head) directly or indirectly abut against the second enclosing component 120. The other end of the arc-shaped structure may increase the firmness of the engagement and reduce the probability of disengagement after engagement.

[0100] When engaged, the arc-shaped structure formed by the locking head 310 and the operating handle 320 surrounds the radially outer side of the second enclosing component 120. The central angle of this arc-shaped structure is greater than 120 degrees and less than 170 degrees. If the central angle is too small or too large, it may be detrimental to the stable mutual contact between the two ends of the arc-shaped structure and the enclosing component.

[0101] The arc-shaped structure differs from the straight-line structure, so that the operator's hands are not on the same line when operating the operating handle 320, forming a staggered arrangement between the left and right sides. This is conducive to generating rotational torque, which may make it easier to operate the rotation of the operating handle 320 and thus control the rotation of the chuck head 310.

[0102] like Figure 5 , 7 As shown in Figure 8, when the pair of third protruding portions 1121 and the pair of fourth protruding portions 1221 are provided, the locking head 310 includes a pair of locking heads 311. The pair of locking heads 311 are spaced apart, and the locking portions 330 provided on the fourth protruding portion 1221 that cooperate with them are also a pair. In the locked state, the pair of locking heads 311 engage with the pair of locking portions 330 respectively, realizing double locking and further improving the locking firmness.

[0103] In addition, the external dimensions of the pipe to be connected and / or the connecting mechanism to connect the pipe may differ from the original design dimensions during manufacturing or after a period of use. If the tightness of the connection is insufficient during connection, the pipe to be connected cannot achieve the preset sealing effect.

[0104] In order to make it possible to solve the above problems, another embodiment of the present invention also includes a spacing adjustment component.

[0105] Working method: The distance between the card head and the engaging part on the enclosure is adjusted by the spacing adjustment component. The enclosure is tightly closed by the engaging component, and the state of the enclosure tightly closed remains basically unchanged when the engaging component is engaged.

[0106] Spacing adjustment component

[0107] The spacing adjustment assembly includes a main spacing adjustment component and a secondary spacing adjustment component. The secondary spacing adjustment component is directly or indirectly disposed on the first free part, and the main spacing adjustment component is directly or indirectly disposed on the card head.

[0108] An example of the main and secondary spacing adjustment components is a telescopic locking structure, meaning that the main and secondary spacing adjustment components are a pair of components whose positions can be changed relative to each other. Specifically, it includes a telescopic outer tube, a telescopic inner tube, and several tube locking holes provided on the telescopic outer tube, a tube retaining spring provided on the telescopic inner tube, and a tube clamp connected thereto. During operation, the telescopic outer tube and the telescopic inner tube can be adjusted to the required position first, and then the tube clamp can be partially extended out of the tube locking hole.

[0109] In one example of the aforementioned spacing adjustment main component and spacing adjustment sub-component, the adjustable length and precision can be increased or decreased by setting the spacing of the pipe clamp holes, as well as the size of the main pipe clamp holes and the pipe clamp heads that mate with them.

[0110] Another example of the spacing adjustment main component and spacing adjustment sub-component is a screw-connected structure. The spacing adjustment sub-component is an adjustment seat with an internal adjustment threaded hole, and the spacing adjustment main component is an adjustment bolt. The adjustment seat is located on the first free portion 112 of the first enclosing part 110, and the adjustment bolt is located on the locking head 310. During the locking operation, the locking head 310 is rotated to drive the adjustment bolt to rotate, thereby changing the position of the adjustment bolt in the adjustment threaded hole. Ultimately, the position between the locking head 310 and the first free portion 112 is adjusted until a preset distance is reached, at which point the adjustment stops. Then, the locking head 310 is locked onto the locking part 330.

[0111] It should be noted that the aforementioned spacing adjustment sub-component and spacing adjustment main component are interchangeable, such as... Figure 4 , 5 As shown in Figure 6, the spacing adjustment component is the adjusting bolt 411, and the spacing adjustment main component is the adjusting seat 421 with an internal adjusting threaded hole.

[0112] In one or more examples of the aforementioned main and secondary spacing adjustment components, the required adjustment accuracy can be achieved by setting the thread pitch of the adjusting threaded hole and the adjusting bolt that screws into it during manufacturing. This adjustment accuracy can reach the millimeter level, specifically 1 mm, 1.5 mm, 2 mm, etc. Furthermore, the adjustable length can be increased by increasing the number of threads.

[0113] There are several ways to connect the spacing adjustment component to the first free part and the card head, as described below.

[0114] The connection between the spacing adjustment component, the first free part, and the card head is as follows: the spacing adjustment sub-component is fixed to the first free part, and the spacing adjustment main component is also fixed to the card head.

[0115] Another connection method between the spacing adjustment component and the first free part and the locking head is as follows: the spacing adjustment sub-component is hinged to the first free part via a second hinge member, while the spacing adjustment main component is fixed to the locking head.

[0116] Another connection between the spacing adjustment component, the first free part, and the locking head is as follows: the spacing adjustment sub-component is fixed to the first free part, and the spacing adjustment main component is hinged to the locking head via a third hinge.

[0117] Furthermore, the connection between the spacing adjustment component, the first free part, and the locking head is as follows: the spacing adjustment sub-component is hinged to the first free part via a second hinge, and the spacing adjustment main component is hinged to the locking head via a third hinge, as shown below. Figure 4 , 5 As shown in Figure 6, the adjusting bolt 411 (a structure of the pitch adjusting sub-component) with the adjusting threaded hole is connected to the first free part 112 via the second hinge shaft 220 (a structure of the second hinge component), and the adjusting seat 421 (a structure of the pitch adjusting main component) is connected to the second free part 122 via the third hinge shaft 230 (a structure of the third hinge component). The chuck 310 can be rotated around the third hinge shaft 230 (a structure of the third hinge component) to a suitable position, and then the relative position of the adjusting seat 421 with the adjusting threaded hole and the adjusting bolt 411 can be adjusted by the rotation of the chuck 310.

[0118] An example of the suitable position described above is a position where there is enough space to accommodate the rotation of the jack 310 (i.e., rotation not centered on the third hinge axis 230).

[0119] When the pair of third protruding portions 1121 and the pair of fourth protruding portions 1221 are provided, and when the engaging assembly is in the engaging state, the spacing adjustment assembly is provided in the first spacing region 114 between the pair of third protruding portions 1121 and the second spacing region 124 between the pair of fourth protruding portions 1221. In this way, the spacing adjustment assembly can reduce the probability of damage caused by external collisions due to the provision of the third protruding portions 1121 and the fourth protruding portions 1221.

[0120] When the second hinge shaft 220 (a structure of the second hinge member) and the pair of third convex portions 1121 are provided, the second hinge shaft 220 (a structure of the second hinge member) is horizontally arranged on the pair of third convex portions 1121, and the spacing adjustment sub-component in the spacing adjustment assembly is connected to the second hinge shaft 220 (a structure of the second hinge member).

[0121] When the aforementioned enclosure component is provided with the convex portion, in one or more examples, the engaging portion 330 is provided on the fourth convex portion 1221 provided on the second free portion 122 of the second enclosure component 120.

[0122] In the claims, the word "comprising" does not exclude other units or steps; the words "a" or "an" do not exclude multiple. The use of ordinal numbers such as "first" or "second" to modify a claim element does not imply that one claim element has a higher priority, order, or chronological sequence of action than another claim element, but is merely for the purpose of distinguishing one claim element from another. Although certain specific technical features are recited in different dependent claims, this does not mean that these specific technical features cannot be combined. Various aspects of this invention can be used individually, in combination, or in various arrangements not specifically discussed in the foregoing embodiments, thus not limiting its application to the details and arrangements of the components described above or shown in the drawings. For example, multiple aspects described in one embodiment can be combined in any way with multiple aspects described in other embodiments. Steps, functions, or features recited in multiple modules or units can be performed or satisfied by one module or unit. The steps of the methods disclosed herein are not limited to being performed in any particular order; it is possible to perform some or all of the steps in other orders. Any reference numerals in the claims should not be construed as limiting the scope of the claims.

[0123] Although the present invention has been described by way of accompanying drawings and embodiments, such description and illustration should be considered illustrative or exemplary rather than restrictive. Those skilled in the art will recognize that various modifications, additions, and substitutions are possible without departing from the scope and spirit of the present invention as disclosed in the appended claims.

Claims

1. A coupling mechanism for pipes, characterized by The tubular connection mechanism includes: Enclosure components, including: The first enclosed component includes: First hinge section; First Freedom Section; and The first sealing groove is located on the inner side of the first enclosing component; and The second enclosing component includes: Second hinge section; The Second Freedom Section; and The second sealing groove is opened on the inner side of the second enclosing component; A first hinge member connects the first hinge portion to the second hinge portion; Card-connecting components, including: The card head is disposed directly or indirectly on the first free part; An operating handle, fixed to the card head, is used to operate the card head; and The engaging part is provided on the second free part; and A spacing adjustment assembly, connecting the card head and the first free part, is used to adjust the distance between the card head and the first free part, and maintains a locked state after being adjusted to a preset distance, including: The main spacing adjustment component is located directly or indirectly on the card head; and The spacing adjustment component is disposed directly or indirectly on the first free part; When the first enclosing component and the second enclosing component are in the enclosing state, the first free part abuts against the second free part, and the first sealing groove is connected to the second sealing groove front and back. Wherein, when the first enclosing component and the second enclosing component are in the enclosing state, and when the engaging component is in the engaging state, the engaging part engages with the engaging head. The main spacing adjustment component and the secondary spacing adjustment component cooperate to adjust the distance between the locking head and the first free part by adjusting the relative position between the main spacing adjustment component and the secondary spacing adjustment component, so as to satisfy the following when the locking head is engaged with the locking part:

2. The pipe coupling mechanism according to claim 1, characterized in that, Also includes: The second hinge connects the first free part and the locking head.

3. The pipe coupling mechanism of claim 1, wherein Also includes: The main and secondary spacing adjustment components are screwed together. as well as The length of the screw-fitted portions of the main and secondary spacing adjustment components is controlled by rotating the clamp head, thereby adjusting the distance between the clamp head and the first free portion, so that the clamp head and the clamping portion are engaged when locked.

4. The pipe coupling mechanism of claim 3, wherein Also includes: When a second hinge is provided, the spacing adjustment component is located on the second hinge.

5. The pipe coupling mechanism of claim 4, wherein, Also includes: The third hinge is located on the card head; The main component for adjusting the spacing is located on the third hinge component.

6. The tubular coupling mechanism according to any one of claims 1 to 5, characterized in that: The first hinge portion includes a first convex portion; The second hinge portion includes a second convex portion; The first free portion includes a third convex portion; and The second free portion includes a fourth convex portion; The engaging portion is located on the fourth protruding portion; The first convex portion and the second convex portion are connected by the first hinge.

7. The pipe coupling mechanism according to claim 6, characterized in that: wherein When a second hinge is provided, the second hinge connects the pitch adjustment sub-part and the third convex portion.

8. The pipe coupling mechanism according to claim 6, characterized in that: The number of the third convex portions is one pair, which are arranged correspondingly along a direction perpendicular to the axis of the enclosure and separated by a first interval area; The fourth convex portion is in pairs, and is arranged correspondingly along a direction perpendicular to the axis of the enclosure and separated by a second interval region; The number of the engaging parts is one pair, which are spaced apart; Wherein, when a second hinge is provided, the second hinge connects the pair of third protruding portions; During the encirclement, the pair of third convex portions abut against the pair of fourth convex portions one by one; During engagement, the locking head engages with the pair of locking parts simultaneously.

9. The pipe coupling mechanism according to claim 8, characterized in that: When engaged, the spacing adjustment component is substantially located within the area comprised of the first spacing region and the second spacing region.

10. The tubular coupling mechanism according to claim 8, characterized in that: The card header includes a pair of card opening and closing heads; When a third hinge is provided, the third hinge connects the spacing adjustment main component and the pair of locking / unlocking heads; During engagement, the pair of engagement heads engage with the pair of engagement parts in a one-to-one correspondence.

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