CN218207365U - Flat clamp and pipe connecting structure thereof - Google Patents

Abstract

The utility model provides a flat clamp and a pipe connection structure thereof, wherein the flat clamp comprises a clamp belt and a fastening component for tightening the clamp belt, and after two ends of the clamp belt are respectively turned outwards, a turning ring and an overlapping part are respectively formed; the two overlapping parts are respectively provided with a mounting hole. The utility model provides a how to improve the clamp that prior art exists, strengthen the strap both ends with the joint strength's of fastening components junction problem.

Description

Flat clamp and pipe connection structure thereof

Technical Field

The utility model relates to a body coupling technical field, especially a flat clamp and tube connection structure thereof.

Background

When the existing clamp is used, the joint strength of the two ends of the hoop and the joint of the fastening component is insufficient, the service life of the clamp is influenced, and therefore, the clamp is improved, and the joint strength of the two ends of the hoop and the joint of the fastening component is enhanced to form the technical problem to be solved.

In addition, when the current clamp is pressing from both sides tight pipe, the clamp rotates along the pipe easily (pipe is motionless promptly, and the strap of clamp rotates), leads to relative position between clamp and the pipe to change, and clamp fixed position is inaccurate, influences the tight effect of clamp to the pipe.

Therefore, how to improve the clamping hoop so that the clamping hoop can be positioned on the female pipe becomes a technical problem to be solved.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a flat clamp and tube connection structure thereof mainly solves above-mentioned prior art problem one: how to improve the clamp, the problem of the joint strength of the joint of the two ends of the strap and the fastening component is strengthened; the second problem is that: how to improve the clamp, make the clamp can fix a position the problem on the female pipe.

In order to realize the purpose, the utility model discloses the technical scheme who adopts is: a flat clamp comprising a band and a fastening assembly for tightening the band, characterized in that: the two ends of the strap are respectively folded outwards to form a turning ring and an overlapping part; the two overlapping parts are respectively provided with a mounting hole.

Furthermore, the strap is provided with a positioning hole and/or a positioning groove.

Furthermore, the positioning hole is positioned in the middle part of the strap;

and/or the positioning groove is positioned at the side edge of the belt.

Furthermore, the positioning groove is positioned at the single side edge of the strap;

or more than two positioning grooves are distributed on the two side edges of the strap, and the positioning grooves on the two side edges correspond one to form positioning grooves with the two sides in the same direction or positioning grooves with the two sides staggered and in different directions.

Furthermore, the positioning grooves with the two sides staggered and in different directions are right-angled in the circumferential direction.

Furthermore, the fastening assembly comprises a T-shaped bolt, an I-shaped block and a locking nut, and two ends of the strap are respectively provided with a mounting hole;

the T-shaped bolt comprises a head part and a screw rod part, the screw rod part penetrates through the two mounting holes and then is locked by the locking nut, and the I-shaped block is sleeved on the screw rod part and is positioned between the two mounting holes;

the screw rod part is first screw rod part and second screw rod part, and the head of T type bolt is connected to first screw rod part one end, and the second screw rod part is connected to the first screw rod part other end, and the diameter of first screw rod part is greater than the diameter of second screw rod part, and the cross-section of the junction of first screw rod part and second screw rod part is convex arc of evagination.

Furthermore, the shape of the head of the T-shaped bolt facing one end of the clamping belt is matched with the shape of the outer side surface of the overlapping part corresponding to one end of the clamping belt;

the shapes of the two sides of the I-shaped block are matched with the shape of the inner side surface of the overlapping part of the two ends of the strap;

still be equipped with the semicircle piece of cup jointing on second screw rod portion between the overlapping portion of strap other end and the lock nut, the shape of semicircle piece towards the strap other end matches with the lateral surface shape that corresponds overlapping portion of strap other end.

Furthermore, the head of the T-shaped bolt is in a semicircular shape in section towards one end of the clamping belt;

the cross sections of the two sides of the I-shaped block are in an inward concave arc shape;

the cross section of the overlapping part at the two ends of the strap is in an inward concave arc shape;

the section of the semicircular block facing to the other end of the strap is semicircular;

and/or a gasket sleeved on the second screw rod part is also arranged between the semicircular block and the locking nut;

and/or the bottom of the I-shaped block is arc-shaped.

A pipe connection structure characterized in that: the pipe connecting structure comprises a male pipe, a female pipe and the flat clamp,

the female pipe is provided with a notch, after the male pipe is embedded into the female pipe, the strap is correspondingly notched and sleeved on the outer side surface of the female pipe, and the fastening assembly locks the strap to realize the connection between the male pipe and the female pipe;

the outer side surface of the main pipe is provided with a first protruding part which is matched with the positioning hole and/or the positioning groove.

Furthermore, a second bulge is arranged on the outer side surface of the male pipe and matched with the slot of the female pipe;

and/or the slot of the female pipe is Z-shaped.

In view of the above technical characteristics, the utility model has the advantages of as follows:

1. the utility model discloses a flat clamp, the first circle, the second of turning over at strap both ends turn over the design of circle, can effectively help the stress release of strap tip, and the turn department of avoiding the upset of strap both ends produces the weak link and causes the easy fracture of strap.

2. The utility model discloses a flat clamp, the first overlapping portion, the second overlapping portion at strap both ends, the design of thickening increases the joint strength at this position, prolongs flat clamp life.

3. The utility model discloses a flat clamp, through set up locating hole and/or constant head tank on the strap, first bellying (for example first convex closure) on the female pipe of cooperation realizes location or limit function of clamp on female pipe, and the clamp can effectively avoid between clamp and the female pipe relative position to change (can fix a position or spacing with both positions homoenergetic in the axial and upwards week) when pressing from both sides tight pipe, ensures that the fixed position of clamp on female pipe is accurate, improves the clamp tight effect of clamp to the pipe.

4. The utility model discloses a flat clamp, the both sides syntropy constant head tank and the incorgruous constant head tank of both sides dislocation of strap can realize location or spacing between flat clamp and the female pipe more steadily.

5. The utility model discloses a flat clamp, the diameter of first screw rod portion is greater than the diameter of second screw rod portion, and the cross-section of both junctions is that the evagination is convex, forms the bulge of round evagination circular arc, and the I-shaped piece of being convenient for slides.

6. The utility model discloses a flat clamp, the T type bolt head of semicircular arc surface, the curved first overlapping portion of indent and the second overlapping portion, the I-shaped piece of left and right sides cambered surface, the semicircular block of semicircular arc surface, T type bolt head cooperation lock nut are with first overlapping portion, I-shaped piece and the locking of second overlapping portion together, and four closely laminate, ensure the tight dynamics of clamp to the clamp of female pipe for the whole sealing performance of public pipe and female pipe is good.

Drawings

FIG. 1 is a schematic view of the structure of a band in example 1 (embodying the turn and the overlapping portion);

FIG. 2 is a schematic view of a flat clip according to example 2 (single-sided positioning groove, perspective view, relaxed state);

FIG. 3 is a schematic view showing the structure of a flat clip according to example 2 (single-sided positioning groove, front view, relaxed state);

FIG. 4 is a schematic structural view of a T-bolt in embodiment 2;

FIG. 5 is a schematic diagram of the structure of an I-block in embodiment 2;

FIG. 6 is a schematic view showing the structure of a semicircular block in example 2;

FIG. 7 is a schematic view showing a structure of a flat clip of example 2 (single-side positioning groove, front view, clamped state);

FIG. 8 is a schematic view of a flat clip in embodiment 3 (positioning grooves on two sides in the same direction, perspective view, relaxed state);

FIG. 9 is a schematic structural view of a flat band clamp according to embodiment 4 (two side-staggered opposite-direction positioning slots, a perspective view, a relaxed state);

FIG. 10 is a schematic construction view (front view) of a pipe joint structure in embodiment 6;

FIG. 11 is a schematic view of a structure of a pipe connecting structure in example 6 (single-sided positioning groove, perspective view);

FIG. 12 is a schematic structural view (positioning hole, perspective view) of a pipe connecting structure in example 6;

FIG. 13 is a schematic view showing the structure of a female pipe of one of the pipe connecting structures in example 7 (showing a z-shaped groove).

In the figure:

100. flattening the hoop;

110. a cuff; 111. a first turn-over ring; 112. a second turn-over ring; 113. positioning a groove; 114. positioning holes; 115. a first overlapping portion; 116. a second overlapping part;

120. a T-bolt; 121. a head; 122. a first screw section; 123. a second screw section; 124. a projection; 130. an I-shaped block; 131. a first circular hole; 140. a semicircular block; 141. a second circular hole; 150. a gasket; 160. locking the nut;

200. a main pipe; 210. a first boss; 220. grooving;

300. and (7) a male pipe.

Detailed Description

The present invention will be further described with reference to the following detailed description. It should be understood that these examples are for illustrative purposes only and are not intended to limit the scope of the present invention. Furthermore, it should be understood that various changes or modifications can be made by those skilled in the art after reading the teachings of the present invention, and these equivalents also fall within the scope of the appended claims.

Referring to fig. 1, embodiment 1 provides a flat clamp, which includes a band 110 and a fastening assembly for tightening the band 110, wherein two ends of the band 110 are respectively folded outwards to form a turn and an overlapping portion; the two overlapping parts are respectively provided with a mounting hole.

The hoop 110 is made of a steel belt, the straight steel belt is turned over to form the integrated hoop 110, the two ends of the hoop 110 are respectively turned outwards to form a turning ring and an overlapping part, the turning ring can help the stress at the turning part of the hoop 110 to be released, the overlapping part corresponds to the position of the mounting hole, when the hoop 110 is tightened by the fastening assembly, the extrusion degree of the overlapping part is increased, and the thickness and the strength of the overlapping part can be increased due to the double-layer steel belt design of the overlapping part.

In the present embodiment 1, the turning rings are the first turning ring 111 and the second turning ring 112, respectively, and the overlapping portions are the first overlapping portion 115 and the second overlapping portion 116, respectively; two mounting holes set up respectively on corresponding overlap portion, and the cross sectional shape of strap 110 both ends overlap portion all is concave arc, for example first overlap portion 115 is the concave arc of left concave right convex, and the right side cambered surface of first overlap portion 115 is the inboard cambered surface, and the left side cambered surface of first overlap portion 115 is the outside cambered surface, and second overlap portion 116 is the concave arc of left convex right concave, and the left side cambered surface of second overlap portion 116 is the inboard cambered surface, and the right side cambered surface of second overlap portion 116 is the outside cambered surface.

Referring to fig. 2 to 7, in embodiment 2, this embodiment 2 provides a flat clamp, which includes a band 110 and a fastening component for tightening the band 110, in addition to embodiment 1, the band 110 (i.e. the outer steel band) is additionally provided with a positioning slot 113, the positioning slot 113 is located at the side of the band 110, for example, the positioning slot 113 is located at one side of the band 110;

the positioning groove 113 is used for matching with the first bulge 210 on the female pipe 200 (that is, the first bulge 210 is clamped in the positioning groove 113), so as to achieve a positioning function or a limiting function between the band 110 and the female pipe 200, when the flat band 100 fastens the female pipe 200 (that is, fastens the female pipe 200 and the male pipe 300, and achieves connection between the male pipe 300 and the female pipe 200), the band 110 and the female pipe 200 do not move circumferentially (effectively preventing the band 110 from rotating on the female pipe 200 during driving), after the band 110 is sleeved on the female pipe 200, the first bulge 210 limits the positioning groove 113, so as to prevent the band 110 from moving axially along the female pipe 200 (for example, moving forwards), the band 113 also plays a certain limiting function in cooperation with the first bulge 210 in the axial position of the band 110, under the dual positioning function, the positional relationship between the band 110 and the female pipe 200 is more stable and skids, so as to facilitate more efficient tightening of the band assembly, achieve a fastening function of the flat band 100 on the male pipe 300 and the female pipe 200, and also ensure that the flat band 100 covers the female pipe 200 at a more accurate fastening position (for example, see a better use state of the flat band 100, for example, a better use of the grooved pipe 200).

The two ends of the band 110 are respectively provided with a mounting hole, for example, the band 110 is C-shaped, and the two mounting holes are matched with the T-shaped bolt 120 and the lock nut 160 to achieve the function of tightening the band 110.

The fastening assembly comprises a T-shaped bolt 120, an I-shaped block 130 and a locking nut 160, the T-shaped bolt 120 comprises a head portion 121 and a screw portion, the screw portion penetrates through the two mounting holes and then is locked by the locking nut 160, the I-shaped block 130 is sleeved on the screw portion and is located between the two mounting holes, for example, a round hole 131 is formed in the middle of the I-shaped block 130, and the screw portion is connected with a first round hole 131 of the I-shaped block 130 through a spline.

The screw part is a first screw part 122 and a second screw part 123, one end (for example, the left end of the first screw part 122 in fig. 4) of the first screw part 122 is connected with the head 121 of the T-bolt 120, the other end (for example, the right end of the first screw part 122 in fig. 4) of the first screw part 122 is connected with the second screw part 123, the diameter of the first screw part 122 is larger than that of the second screw part 123, and the cross section of the joint of the first screw part 122 and the second screw part 123 is in an outward convex arc shape. For example, the joint of the first screw portion 122 and the second screw portion 123 forms a convex circular arc protrusion 124 (not shown in the drawings), which makes the fall at the joint of the first screw portion 122 and the second screw portion 123 smoother, and also facilitates the movement of the i-shaped block 130 between the first screw portion 122 and the second screw portion 123, especially the movement from the second screw portion 123 to the first screw portion 122.

The shape of the head 121 of the T-bolt 120 facing one end of the band 110 (for example, the right end of the head 121 of the T-bolt 120 in fig. 4) matches the shape of the outer side of the overlapping portion (i.e., the first overlapping portion 115) corresponding to one end of the band 110, for example, the cross-sectional shape of the head 121 of the T-bolt 120 facing one end of the band 110 is semicircular, the semicircular protrusion of the head 121 of the T-bolt 120 matches the shape of the inner concave portion of the first overlapping portion 115, during tightening or tightening of the flat clamp 100, the semicircular arc surface of the head 121 of the T-bolt 120 is always ensured to be attached to the outer arc surface of the first overlapping portion 115, and the arc contact surfaces are attached to the maximum extent, so that the flat clamp 100 generates continuous effective tension during tightening.

The shapes of the two sides of the i-shaped block 130 are matched with the shapes of the inner sides of the overlapped portions of the two ends of the clamping band 110, for example, the cross sections of the two sides of the i-shaped block 130 are in an inward concave arc shape, the arc surfaces of the left side and the right side of the i-shaped block 130 can be effectively attached to the arc surfaces of the inner sides of the flat clamping band 100 (i.e., the arc surfaces of the inner sides of the first overlapped portion 115 and the second overlapped portion 116), during tightening or tightening of the flat clamping band 100, the arc surfaces of the two sides of the i-shaped block 130 can effectively support the head 121 and the semicircular block 140 of the T-shaped bolt 120, so as to be convenient for being matched with the head 121 and the semicircular block 140 of the T-shaped bolt 120 to respectively clamp or tighten the first overlapped portion 115 and the second overlapped portion 116, thereby preventing the head 121 and/or the semicircular block 140 of the T-shaped bolt 120 from being abnormally deformed when the flat clamping band 100 is tightened or tightened, and ensuring the clamping force of the flat clamping band 100 on the female pipe 200, and ensuring good sealing performance of the male pipe 300 and the whole male pipe 200.

A semicircular block 140 and a gasket 150 sleeved on the second screw portion 123 are further disposed between the overlapping portion (i.e., the second overlapping portion 116) at the other end of the band 110 and the lock nut 160, and the shape of the semicircular block 140 facing the other end of the band 110 is matched with the shape of the outer side surface of the corresponding overlapping portion at the other end of the band 110. The washer 150 is located between the semicircular block 140 and the lock nut 160, and the washer 150 is used to increase the contact area between the semicircular block 140 and the lock nut 160, reduce the pressure applied to the semicircular block 140, prevent the semicircular block 140 and the lock nut 160 from loosening, and protect the semicircular block 140. The middle part of the semicircular block 140 is provided with a second round hole 141, and the semicircular block 140 is sleeved on the second screw rod part 123 by the second round hole 141.

The semicircular block 140 has a semicircular shape in cross section toward the other end of the band 110. The semicircular arc surface of the semicircular block 140 is attached to the outer arc surface of the second overlapping portion 116, so that in the process of tightening or tightening the flat clamp 100, the arc surface of the semicircular block 140 helps the second overlapping portion 116 to be stressed more uniformly, after the flat clamp 100 is tightened or tightened, the arc surface of the semicircular block 140 is attached to the outer arc surface of the second overlapping portion 116 more tightly, at the moment, the semicircular arc surface of the head portion 121 of the T-shaped bolt 120, the arc surfaces of the left side and the right side of the i-shaped block 130 and the semicircular arc surface of the semicircular block 140 jointly tighten the first overlapping portion 115 and the second overlapping portion 116, and the semicircular arc surfaces, the semicircular arc surface, the left side arc surface and the right side arc surface of the T-shaped bolt 120, and the semicircular arc surface are closely attached to the first overlapping portion 115 and the second overlapping portion 116, so that the clamping force of the flat clamp 100 on the female pipe 200 is ensured, and the integral sealing performance of the male pipe 300 and the female pipe 200 is good.

The bottom of the I-shaped block 130 is arc-shaped and matched with the shape of the mother pipe 200, when the flat clamp 100 clamps the mother pipe 200, the bottom of the I-shaped block 130 is attached to the mother pipe 200, so that the flat clamp 100 clamps the mother pipe 200 in a circle without dead angle leakage, and the clamping force of the flat clamp 100 on the mother pipe 200 is more uniform.

Referring to fig. 8, an embodiment 3, embodiment 3 provides a flat band clamp, the design of embodiment 3 is substantially the same as that of embodiment 2, and embodiment 3 is different from embodiment 2 in that more than two positioning slots 113 are distributed on both sides of the band 110, and the positioning slots 113 on both sides are in one-to-one correspondence to form positioning slots 113 with the same direction on both sides. The two sides are in the same direction, that is, the straight line formed by connecting the central points of the two positioning grooves 113 is parallel to the axis of the flat clamp 100, or on the same circumferential cross section, the projections of the two positioning grooves 113 are overlapped, or the projections of the central points of the two positioning grooves 113 are overlapped.

For example, in this embodiment 3, two positioning grooves 113 are provided, two positioning grooves 113 are located right below the fastening assembly, and two positioning grooves 113 form two positioning grooves 113 with the same side and the same direction, at this time, two first protrusions 210 are also provided at the corresponding positions of the female pipe 200, the two first protrusions 210 correspond to the two positioning grooves 113 with the same side and the same direction, and are matched with each other one by one, not only can the circumferential positioning function between the band 110 and the female pipe 200 be realized, but also the axial positioning function between the band 110 and the female pipe 200 can be realized, the limitation on the positioning grooves 113 by the first protrusions 210 can be avoided, the band 110 can be prevented from moving back and forth along the axial direction of the female pipe 200, under the dual positioning effects of the circumferential direction and the axial direction, the position relationship between the band 110 and the female pipe 200 is more stable, the band is not easy to slip, the band 110 can be conveniently tightened more efficiently through the fastening assembly, and the fastening effect of the flat band 100 on the male pipe 300 and the female pipe 200 can be realized.

Referring to fig. 9, an embodiment 4, embodiment 4 provides a flat band clamp, the design of embodiment 4 is substantially the same as that of embodiment 3, and embodiment 4 is different from embodiment 3 in that more than two positioning slots 113 are distributed on both sides of the band 110, and the positioning slots 113 on both sides are in one-to-one correspondence to form positioning slots 113 with staggered opposite directions on both sides. The two-side dislocation heterodromous means that a straight line formed by connecting the central points of the two positioning grooves 113 is not parallel to the axis of the flat clamp 100, or on the same circumferential cross section, the projections of the two positioning grooves 113 are not overlapped, or the projections of the central points of the two positioning grooves 113 are not overlapped, at this time, the projections of the central points of the two positioning grooves 113 are respectively connected with the central points of the circumferential cross section into a straight line, and the two straight lines form a certain angle, which is the dislocation heterodromous.

The positioning grooves 113 with staggered opposite directions on two sides realize the positioning function in the circumferential direction and the positioning function in the axial direction between the strap 110 and the main pipe 200, and further enable the positioning effect in the circumferential direction between the strap 110 and the main pipe 200 to be better and the positioning strength to be stronger.

For example in this embodiment 4, the constant head tank 113 is two, and the anisotropic constant head tank 113 of both sides dislocation is the right angle in circumference, that is to say on same circumference cross-section, and the projection of two constant head tank 113's central point links into the straight line with the central point of circumference cross-section respectively, and two straight lines form the angle and be 90, angle design like this for between strap 110 and the female pipe 200 circumference ascending location effect is best, and the location dynamics is the strongest.

Embodiment 5, this embodiment 5 provides a flat clamp, the design of embodiment 5 is substantially the same as that of embodiment 2, and embodiment 5 differs from embodiment 2 in that the band 110 has positioning holes 114. The positioning groove 113 may or may not be designed at this time. The positioning hole 114 is used for matching with the first protrusion 210 on the female pipe 200 (namely, the first protrusion 210 is clamped in the positioning groove 113), so that a positioning function between the clamping band 110 and the female pipe 200 is realized, and the positioning function comprises positioning or limiting of the clamping band 110 and the female pipe 200 in the circumferential direction and the axial direction, under the double positioning action, the position relation between the clamping band 110 and the female pipe 200 is more stable and is not easy to slip, the clamping band 110 can be conveniently tightened through the fastening assembly more efficiently, and the fastening effect of the flat clamping band 100 on the male pipe 300 and the female pipe 200 is realized. See fig. 12 for the use of the flat clamp.

Compared with the design of the positioning slot 113 on one side of the band 110 in embodiment 2, the design of the positioning hole 114 in this embodiment 5 has a better positioning effect on the band 110 and the female tube 200 in the axial direction, and the first protrusion 210 limits the positioning hole 114, so as to prevent the band 110 from moving back and forth along the female tube 200 in the axial direction.

In the embodiment 5, compared to the design of the positioning slots 113 with the same direction on both sides in the embodiment 3 and the positioning slots 113 with the different directions on both sides in the embodiment 4, the design of the positioning holes 114 is more efficient and convenient.

In this embodiment 5, for example, the band 110 is provided with the positioning hole 114 without the positioning groove 113, for example, the positioning hole 114 is located in the middle of the band 110, and preferably, the positioning hole 114 is located right below the fastening assembly, which is not only beautiful, but also has better dual positioning effects on the band 110 and the female pipe 200 in the circumferential direction and the axial direction.

Referring to fig. 10 to 12, in embodiment 6, a pipe connecting structure is provided in this embodiment 6, the pipe connecting structure includes a male pipe 300, a female pipe 200 and a flat clamp in the foregoing embodiments, the female pipe 200 is provided with a slot 220 (the slot 220 structure is not limited to the slot 220 structure shown in the drawings of the specification), after the male pipe 300 is inserted into the female pipe 200, a strap 110 corresponds to the slot 220 and is sleeved on an outer side surface of the female pipe 200, and a fastening assembly locks the strap 110 to realize connection between the male pipe 300 and the female pipe 200; at this time, the male pipe 300 is not provided with the groove 220, the male pipe 300 is inserted into the female pipe 200, a certain fit clearance is left between the male pipe 300 and the female pipe 200, the groove 220 of the female pipe 200 aims to ensure that the strap 110 (also called an outer steel belt) shrinks and tightens the female pipe 200 in the tightening process of the flat clamp 100, so that the groove 220 of the female pipe 200 is extruded and shrunk to deform inwards, the shrunk and deformed female pipe 200 compensates the fit clearance with the male pipe 300, the good sealing performance of the joint of the male pipe 300 and the female pipe 200 is ensured, and the sealing performance of the whole system where the male pipe 300 and the female pipe 200 are located is ensured.

The outer side of the female tube 200 is provided with one or more first protrusions 210, and the first protrusions 210 are matched with the positioning holes 114 and/or the positioning grooves 113, for example, the first protrusions 210 have the same size as the positioning holes 114 and/or the positioning grooves 113, so as to position or limit the band 110 of the flat clamp 100. The first protrusion 210 matches with the positioning hole 114, see fig. 12; the first boss 210 mates with the detent 113, see FIG. 11.

Referring to fig. 13, embodiment 7 provides a pipe connecting structure, and embodiment 7 differs from embodiment 6 in that the groove 220 of the female pipe 200 is Z-shaped (see fig. 13), the outer side surface of the male pipe 300 is provided with a second protrusion (not shown in the drawings), the second protrusion matches with the groove 220 of the female pipe 200, when the male pipe 300 is inserted into the female pipe 200, the second protrusion is also inserted into the groove 220 of the female pipe 200, and the second protrusion moves along the Z-shaped groove 220, when the male pipe 300 is inserted into a designated position in the female pipe 200, the second protrusion is also located at the bottom of the groove 220 of the female pipe 200, at this time, even though there is a fit gap between the male pipe 300 and the female pipe 200, the male pipe 300 and the female pipe 200 are not easy to slip off, a preliminary limit of the male pipe 300 and the female pipe 200 in the axial direction is realized between the second protrusion and the Z-shaped groove 220, so that the clamp 110 is subsequently sleeved on the outer side wall of the female pipe 200 (at the positioning hole 114 and/or 113 are matched with the first protrusion to realize positioning between the clamp 110 and the female pipe 200), thereby improving the efficiency of the male pipe connecting clamp structure and the male pipe 100 and the female pipe connecting operation, and the female pipe connecting clamp 200, and the quality of the male pipe connecting operation.

The above only is the preferred embodiment of the present invention, not limiting the scope of the present invention, all the equivalent structures or equivalent flow changes made by the contents of the specification and the drawings, or directly or indirectly applied to other related technical fields, are included in the same way in the protection scope of the present invention.

Claims (10)

1. A flat clamp comprising a band (110) and a fastening assembly for tightening the band (110), characterized in that: two ends of the strap (110) are respectively turned outwards to form a turning ring and an overlapping part; the two overlapping parts are respectively provided with a mounting hole.

2. The flat clamp of claim 1, wherein: the strap (110) is provided with a positioning hole (114) and/or a positioning groove (113).

3. The flat clamp of claim 2, wherein: the positioning hole (114) is positioned in the middle part of the belt (110);

and/or the positioning groove (113) is positioned at the side of the belt band (110).

4. The flat clamp according to claim 3, wherein: the positioning groove (113) is positioned at the single side edge of the belt (110);

or more than two positioning grooves (113) are distributed on the side edges of the two sides of the strap (110), and the positioning grooves (113) on the side edges of the two sides are in one-to-one correspondence to form positioning grooves (113) with the same direction on the two sides or positioning grooves (113) with staggered and different directions on the two sides.

5. The flat clamp of claim 4, wherein: the positioning grooves (113) with two staggered sides and different directions are right-angled in the circumferential direction.

6. The flat clamp according to any one of claims 1 to 5, wherein: the fastening assembly comprises a T-shaped bolt (120), an I-shaped block (130) and a locking nut (160), and two ends of the hoop (110) are respectively provided with a mounting hole;

the T-shaped bolt (120) comprises a head part (121) and a screw rod part, the screw rod part penetrates through the two mounting holes and then is locked by a locking nut (160), and the I-shaped block (130) is sleeved on the screw rod part and is positioned between the two mounting holes;

the screw rod part is a first screw rod part (122) and a second screw rod part (123), one end of the first screw rod part (122) is connected with a head part (121) of the T-shaped bolt (120), the other end of the first screw rod part (122) is connected with the second screw rod part (123), the diameter of the first screw rod part (122) is larger than that of the second screw rod part (123), and the cross section of the joint of the first screw rod part (122) and the second screw rod part (123) is in an outer convex arc shape.

7. The flat clamp of claim 6, wherein:

the shape of the head (121) of the T-shaped bolt (120) facing one end of the clamping band (110) is matched with the shape of the outer side surface of the overlapping part of one end of the corresponding clamping band (110);

the shapes of the two sides of the I-shaped block (130) are matched with the shape of the inner side surface of the overlapping part of the two ends of the strap (110);

a semicircular block (140) sleeved on the second screw rod part (123) is further arranged between the overlapping part at the other end of the hoop (110) and the locking nut (160), and the shape of the semicircular block (140) facing to the other end of the hoop (110) is matched with the shape of the outer side face of the overlapping part at the other end of the corresponding hoop (110).

8. The flat clamp of claim 7, wherein:

the head (121) of the T-shaped bolt (120) is semicircular in section towards one end of the belt (110);

the cross sections of the two sides of the I-shaped block (130) are in an inwards concave arc shape;

the cross section of the overlapping part of the two ends of the strap (110) is in an inward concave arc shape;

the section of the semicircular block (140) facing to the other end of the belt (110) is semicircular;

and/or a gasket (150) sleeved on the second screw rod part (123) is arranged between the semicircular block (140) and the locking nut (160);

and/or the bottom of the I-shaped block (130) is arc-shaped.

9. A pipe connection structure characterized in that: the pipe connecting structure comprises a male pipe (300), a female pipe (200) and the flat clamp (100) as claimed in claim 1 or 2 or 3 or 4 or 6 or 7 or 8, wherein the female pipe (200) is provided with a slot (220), after the male pipe (300) is embedded into the female pipe (200), the strap (110) corresponds to the slot (220) and is sleeved on the outer side surface of the female pipe (200), and the strap (110) is locked by a fastening component to realize the connection between the male pipe (300) and the female pipe (200);

the outer side surface of the main pipe (200) is provided with a first protruding part (210), and the first protruding part (210) is matched with the positioning hole (114) and/or the positioning groove (113).

10. The pipe connecting structure according to claim 9, wherein: the outer side surface of the male pipe (300) is provided with a second convex part which is matched with the slot (220) of the female pipe (200);

and/or the slot (220) of the female pipe (200) is Z-shaped.

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