CN218063795U - Anti-loosening clamp - Google Patents

Abstract

The utility model relates to a locking clamp relates to clamping device's technical field, including being used for binding tightly circle pipe fitting smuggle secretly, smuggle secretly including interior smuggle and outer clamp band, integrated into one piece has the clamping ear on the outer clamp band, be provided with fastening component in the clamping ear, fastening component includes the locking lever, be provided with the plug connector that smugglies the orientation extension towards interior smuggle on the locking lever, interior clamp band is last to be seted up with plug connector complex inserting groove. When pressing from both sides the cover and need tighten up in the pipe fitting outside secretly, operating personnel can use the clamp pincers to press from both sides tight clamping lug, makes clamping lug both sides shrink deformation inwards, and the locking lever moves towards the stiff end direction of smuggleing secretly along with the deformation of clamping lug to drive the plug connector and insert to the inserting groove in, thereby keep away from the clamping lug and smuggle one side of smuggleing the stiff end secretly with interior smuggleing the locking together. The clamping device is simple and reliable in operation, the possibility that the round pipe piece is loosened due to sliding back after the clamping lugs are clamped is reduced, and therefore the clamping performance of the clamp is enhanced.

Description

Anti-loosening clamp

Technical Field

The application relates to the field of clamping devices, in particular to a locking clamp.

Background

The clamp is a fastener which is arranged on the pipe fitting and used for connecting the tightening hoop, and has the advantages of attractive appearance, convenience in use, strong tightening force and the like.

A conventional clip mainly comprises a clip band and a clip provided on the clip band. The clamp belt is in a straight belt shape, and when the clamp belt is used, the clamp belt is arranged around the circular pipe fitting and is overlapped end to end in an annular shape to form an inner clamp belt close to one side of the circular pipe fitting and an outer clamp belt overlapped on the outer side; the end of the outer clamping belt is a fixed end, a locking hole is formed in the fixed end, and a locking block which penetrates out of the locking hole and is fixed by the inner clamping belt and the outer clamping belt is arranged on the inner clamping belt.

And the clamping lug sets up on outer clamping belt, when tightening up to smuggle secretly, need use the clamp pincers to press from both sides tight clamping lug, and the clamping lug drives and smugglies the shrink secretly, because the stiff end of smuggleing secretly and outer clamping belt in has locked each other, consequently smugglies secretly and encloses the clamping area who closes the formation and can reduce to reach the effect of pressing from both sides tight pipe fitting, operate very simple swiftly.

However, when severe vibration or collision occurs, the clamping lugs are easy to loosen and expand towards two sides, so that the clamping force of the clamping lugs on the clamping belt is reduced, and the original clamped round pipe fitting is released from a tightened state.

SUMMERY OF THE UTILITY MODEL

In order to improve the clamp performance of clamp, this application provides a locking clamp.

The application provides a locking clamp adopts following technical scheme:

an anti-loose clamp comprises a clamp belt for clamping a round pipe fitting, wherein the clamp belt comprises an inner clamp belt close to one side of the round pipe fitting and an outer clamp belt far away from one side of the round pipe fitting when the round pipe fitting is clamped, clamp lugs are integrally formed on the outer clamp belt, fastening components are arranged in the clamp lugs, each fastening component comprises a locking rod which is arranged in each clamp lug and far away from one side of a fixed end of the clamp belt, a plug connector extending towards the direction of the inner clamp belt is arranged on each locking rod, and an insertion groove matched with the plug connector is formed in the inner clamp belt; when the clamping ears are tightened, the plug connector is inserted into the plug-in connection groove.

Through adopting above-mentioned technical scheme, when smuggleing secretly the cover and need tighten up in the pipe fitting outside, operating personnel can use clamp pincers to press from both sides tight clamping lug, makes clamping lug both sides shrink deformation inwards, and the locking lever moves towards the stiff end direction of smuggleing secretly along with the deformation of clamping lug to drive the plug connector and insert to the inserting groove in, thereby keep away from the clamping lug and smuggle one side of smuggleing the stiff end secretly with the interior locking of smuggleing altogether. The clamping device is simple and reliable in operation, the possibility that the round pipe piece is loosened due to sliding back after the clamping lugs are clamped is reduced, and therefore the clamping performance of the clamp is enhanced.

Optionally, the plug connector comprises a transition rod and an insertion rod, a movable groove is formed in the end part of the transition rod, which is inwards clamped, the insertion rod is slidably arranged in the movable groove, a compression spring is arranged in the movable groove, one end of the compression spring is fixed to the bottom wall of the movable groove, and the other end of the compression spring is fixed to the end part of the insertion rod; when the clamping lug is not tightened, one end of the insertion rod, which is far away from the transition rod, is extruded on the outer end face of the inner clamping belt.

By adopting the technical scheme, the insertion rod is abutted against the surface of the inner clamping belt, so that the compression spring is compressed; when the locking rod drives the transition rod and the insertion rod to move to the insertion groove, the compressed compression spring releases the elasticity to push the insertion rod to be inserted into the insertion groove, and therefore the locking effect is achieved.

Optionally, a plurality of the insertion grooves are arranged along the length direction of the inner clamp belt; the end part of the insertion rod close to the inner clamping belt is provided with an insertion inclined plane which is arranged at one side of the insertion rod towards the clamping belt fixing end.

Through adopting above-mentioned technical scheme for when the clamping lug tightened up the degree of difference according to the diameter size of pipe fitting, the inserted link homoenergetic realizes the locking in inserting the inserting groove of corresponding position. The insertion inclined plane ensures that the insertion rod can be separated from the passing insertion groove in the moving process until the insertion rod moves to the corresponding insertion groove.

Optionally, the insertion groove extends in the length direction of the internal clamp belt to form a long groove shape; a plurality of inclined blocks are uniformly arranged in the inserting groove along the length direction; and an inclined plane is arranged on one side of the inclined block back to the clamping belt fixing end.

Through adopting above-mentioned technical scheme, when the clamping lug tightened up the degree of difference according to the diameter size of pipe fitting, the inserted link can move the sloping block department and mutual butt realization locking that correspond the position in the inserting groove thereupon. And the inclined plane of the inclined block can jack up the insertion rod moving towards the side direction, so that the insertion rod is prevented from being clamped by the passing inclined block in the moving process until the insertion rod moves to the corresponding inclined block.

Optionally, the locking rod and the clamping lug are hinged; a fixed seat is arranged on the other side wall, opposite to the locking rod, in the clamping lug, and an accommodating groove is formed in one side, facing the locking rod, of the fixed seat; the end of the locking rod extends into the accommodating groove, and the opening of the accommodating groove is larger than the end of the locking rod.

Through adopting above-mentioned technical scheme, when the clamp lug receives the extrusion of clamp pincers, both sides wall can be the interior slope deformation, and articulated setting makes the locking lever can not change the orientation along with the clamp lug deformation, and fixing base restriction locking lever is towards opposite one side all the time to guarantee that the plug connector can insert downwards to the inserting groove in, the opening size of holding tank is greater than the tip of locking lever, then reduced locking lever and holding tank and taken place the dead possibility of card.

Optionally, a connecting spring is arranged in the accommodating groove, one end of the connecting spring is fixed to the bottom wall of the accommodating groove, and the other end of the connecting spring is fixed to the end of the locking rod.

By adopting the technical scheme, the connecting spring plays a role in stabilizing the locking rod, and the matching stability of the plug connector and the plug-in slot is enhanced.

Optionally, a through hole is formed in an end portion of the locking rod connected with the clamping lug, a hinge shaft is detachably connected in the through hole, and two ends of the hinge shaft extend out of the through hole; two sides of the locking rod on the clamping lug are respectively provided with a penetrating shaft part, and the penetrating shaft parts are provided with through holes; two ends of the hinge shaft are respectively penetrated in the two through holes.

Through adopting above-mentioned technical scheme, the dismouting of the locking lever of being convenient for only needs to be equipped with the one end of through-hole with the locking lever and puts to two and wear between the axial region, penetrates perforation and through-hole with the articulated shaft again and can realize articulatedly.

Optionally, the penetrating shaft portion is integrally formed by the clamping lug through punching, and the penetrating shaft portion and the clamping lug are staggered to form the penetrating hole.

Through adopting above-mentioned technical scheme, be convenient for wear the machine-shaping of axial region and clamping lug.

In summary, the present application includes at least one of the following beneficial technical effects:

1. when pressing from both sides the cover and tighten up in the pipe fitting outside secretly, operating personnel can use the clamp pincers to press from both sides tight clamping lug, makes clamping lug both sides shrink deformation inwards, and the locking lever moves towards the stiff end direction of smuggleing secretly along with the deformation of clamping lug to drive the plug connector and insert to the inserting groove in, thereby keep away from the clamping lug and smuggle one side of smuggleing the stiff end secretly with interior smuggleing the locking together. The operation is simple and reliable, and the possibility that the circular pipe piece is loosened due to sliding back generated after the clamping lugs are clamped is reduced, so that the clamping performance of the clamp is enhanced;

2. the inserting rod is abutted against the surface of the inner clamping belt, so that the compression spring is compressed; when the locking rod drives the transition rod and the insertion rod to move to the insertion groove, the compressed compression spring releases the elasticity to push the insertion rod to be inserted into the insertion groove, and therefore the locking effect is achieved.

Drawings

Fig. 1 is a schematic overall structure diagram of a first embodiment of the present application.

Fig. 2 is a schematic partial cross-sectional view of a clamping lug and a locking rod in an embodiment of the present application, which is used for showing the structures of a fixing seat and the locking rod.

Fig. 3 is a partially cross-sectional schematic view of the clip and the plug member according to an embodiment of the present application, which is used for illustrating the structure of the plug member and the insertion groove.

Fig. 4 is a schematic partial cross-sectional view of the clip and the plug in the second embodiment of the present application, which is used for showing the structure of the plug and the slot.

Description of reference numerals: 1. carrying in; 2. carrying out external entrainment; 3. a clamping area; 4. clamping the lug; 41. a shaft penetrating part; 411. perforating; 5. a fastening assembly; 51. a fixed seat; 511. accommodating a tank; 52. a connecting spring; 53. a locking lever; 531. hinging shafts; 54. a plug-in unit; 541. a transition bar; 542. a plug-in rod; 543. a compression spring; 544. inserting an inclined plane; 6. inserting grooves; 61. a sloping block; 7. a locking block; 8. a locking hole.

Detailed Description

The present application is described in further detail below with reference to figures 1-4.

The application discloses locking clamp.

First embodiment, referring to fig. 1, the anti-loose clamp includes a straight band-shaped clamp band, and the middle of the clamp band is integrally formed with an arched clamp lug 4 by stamping and bending. The clamp belt is made of metal and is wound on the outer side of the round pipe fitting by bending for use. In this embodiment, use the shape when smuggleing secretly the use as the reference, smuggle secretly and encircle the pipe fitting and be cyclic annular setting and fold mutually end to end, form the interior strap 1 that is close to pipe fitting one side and fold in the outer 2 of smuggleing secretly in the outside, the clamp lug 4 is located and smugglies secretly 2 outward, and secretly enclose in the middle of smuggleing secretly and form the clamping area 3 that is used for the tight circular pipe fitting of cramping.

Referring to fig. 1, the end of the outer clamping belt 2 exposed outside is a fixed end, the fixed end is provided with a plurality of locking holes 8, the inner clamping belt 1 is integrally formed with locking blocks 7 corresponding to the locking holes 8, and the locking blocks 7 penetrate through the locking holes 8 and realize the fixation of the inner clamping belt 2 and the outer clamping belt 2. When tightening up and smuggling secretly, need use the both sides of clamp pincers clamping jaw 4, clamp jaw 4 drives and smuggles secretly the shrink, because the stiff end of interior clamp belt 1 and outer clamp belt 2 of smuggleing secretly locks each other, consequently smugglies secretly and encloses the clamping area 3 that closes formation and can dwindle to reach the effect of pressing from both sides tight pipe fitting.

Referring to fig. 2 and 3, a fastening assembly 5 for restraining the clamping lug 4 from being kept in a tightened state is provided in the clamping lug 4. The fastening assembly 5 comprises a fixed seat 51 fixed on the inner wall of one side of the clamping lug 4 and a locking rod 53 hinged on the inner wall of the other side of the clamping lug 4 relative to the fixed seat 51, wherein the fixed seat 51 is positioned on one side close to the fixed end in the clamping lug 4. One side of the fixing seat 51 facing the locking rod 53 is provided with a receiving groove 511, one end of the locking rod 53 is hinged, the other end extends into the receiving groove 511, a connecting spring 52 is arranged in the receiving groove 511, one end of the connecting spring 52 is fixed on the bottom wall of the receiving groove 511, and the other end is fixed on the end of the locking rod 53. The opening of the accommodating groove 511 is larger than the end of the locking rod 53, because when the clip 4 is squeezed by the clip pliers, the two side walls will be inclined inward, and the opening of the accommodating groove 511 is larger than the end of the locking rod 53, which can effectively avoid the locking rod 53 and the fixing seat 51 from being locked.

Referring to fig. 3, the middle of the locking rod 53 is welded with the plug connector 54 extending inwards along the direction of the clamp strap 1, the plug connector 54 further comprises a transition rod 541 and an insertion rod 542, one end of the transition rod 541 is connected with the locking rod 53, the other end of the transition rod inwards along the clamp strap 1, the end of the transition rod 542 is provided with a movable groove, the insertion rod 542 is slidably arranged in the movable groove, a compression spring 543 is arranged in the movable groove, one end of the compression spring 543 is fixed on the bottom wall of the movable groove, and the other end of the compression spring 543 is fixed on the end of the insertion rod 542. When the clip band is wound in a ring shape and the clip lug 4 is not tightened, one end of the insertion rod 542 far away from the transition rod 541 is pressed on the outer end face of the inner clip band 1 under the action of the compression spring 543.

The position department that the outer surface of interior clamp strap 1 corresponds clamping lug 4 has seted up a plurality of inserting grooves 6, is three in this embodiment, and inserting grooves 6 are evenly just arranged at interval along the length direction of interior clamp strap 1. When the two sides of the clamping lug 4 are tightened inwards by the clamp, the locking rod 53 moves towards the direction of the entrained fixed end along with the deformation of the clamping lug 4 and drives the plug connector 54 to move to the insertion groove 6, and at the moment, the compressed compression spring 543 releases elasticity to push the insertion rod 542 to be inserted into the insertion groove 6, so that the locking effect is realized, and one side of the clamping lug 4, which is far away from the entrained fixed end, is locked with the inner clamping band 1.

Referring to fig. 3, the end of the plugging rod 542 near the inner clip 1 is cut to form a plugging inclined surface 544, and the plugging inclined surface 544 faces to one side of the fixed end of the clip. When the clamping lug 4 is tightened and the insertion rod 542 abuts against the inner clamping belt surface to move, the insertion inclined surface 544 plays a role in guiding, so that the insertion rod 542 can be separated from the passing insertion groove 6 until the insertion rod 542 moves to the final insertion groove 6, and the clamping lug 4 can be conveniently tightened to different degrees according to the diameter of the round pipe fitting.

In the second embodiment, referring to fig. 4, the difference between this embodiment and the first embodiment is that only one insertion groove 6 is provided, the insertion groove 6 extends along the length direction of the inner clip 1 to form a long groove shape, a plurality of inclined blocks 61 are uniformly formed in the insertion groove 6 along the length direction, one side of each inclined block 61 facing the fixed end of the clip is a vertical surface, and one side of each inclined block 61 facing away from the fixed end of the clip is an inclined surface. When the clamp 4 is tightened to different degrees according to the diameter of the round pipe, the inserting rod 542 can move to the inclined block 61 at the corresponding position in the inserting groove 6 along with the round pipe and is mutually abutted to realize locking. The inclined surface of the inclined block 61 can jack up the insertion rod 542 moving towards the side direction, so that the insertion rod 542 cannot be clamped by the passing inclined block 61 in the moving process until the insertion rod moves to the corresponding inclined block 61.

The implementation principle of the first embodiment and the second embodiment of the present application is as follows:

when the clamping sleeve needs to be tightened outside the round pipe fitting, an operator can clamp the clamping lug 4 by using the clamp pliers, so that two sides of the clamping lug 4 contract inwards to deform, the locking rod 53 moves towards the direction of the clamped end along with the deformation of the clamping lug 4, the connecting spring 52 in the fixing seat 51 compresses the locking rod 53 and cannot lift upwards, the locking rod 53 drives the plug connector 54 to be inserted into the insertion groove 6 of the corresponding position or inserted into the inclined block 61 of the corresponding position in the insertion groove 6, one side of the clamping lug 4 far away from the clamped end is locked with the inner clamping belt 1, the possibility that the round pipe fitting is loosened due to sliding back after the clamping lug 4 is clamped is reduced, and the clamping performance of the clamp is enhanced.

The above are preferred embodiments of the present application, and the scope of protection of the present application is not limited thereto, so: all equivalent changes made according to the structure, shape and principle of the present application shall be covered by the protection scope of the present application.

Claims (8)

1. The utility model provides a locking clamp which characterized in that: the clamping device comprises a clamping belt used for clamping a round pipe fitting, wherein the clamping belt comprises an inner clamping belt (1) close to one side of the round pipe fitting and an outer clamping belt (2) far away from one side of the round pipe fitting when the round pipe fitting is clamped, clamping lugs (4) are integrally formed on the outer clamping belt (2), a fastening component (5) is arranged in each clamping lug (4), the fastening component (5) comprises a locking rod (53) arranged in each clamping lug (4) and far away from one side of a clamping fixed end, a plug connector (54) extending towards the inner clamping belt (1) is arranged on each locking rod (53), and a plug-in groove (6) matched with the plug connector (54) is formed in the inner clamping belt (1); when the clamping lug (4) is tightened, the plug connector (54) is inserted into the plug groove (6).

2. An anti-loosening clamp according to claim 1, wherein: the plug connector (54) comprises a transition rod (541) and a plug-in rod (542), a movable groove is formed in the end portion, facing the inner clamping belt (1), of the transition rod (541), the plug-in rod (542) is arranged in the movable groove in a sliding mode, a compression spring (543) is arranged in the movable groove, one end of the compression spring (543) is fixed to the bottom wall of the movable groove, and the other end of the compression spring (543) is fixed to the end portion of the plug-in rod (542); when the clamping lug (4) is not tightened, one end of the insertion rod (542) far away from the transition rod (541) is extruded on the outer end face of the inner clamping strap (1).

3. An anti-loosening clamp according to claim 2, wherein: a plurality of inserting grooves (6) are arranged along the length direction of the inner clamping belt (1); the end part of the insertion rod (542) close to the inner clamping belt (1) is provided with an insertion inclined surface (544), and the insertion inclined surface (544) is arranged on one side of the insertion rod (542) facing the fixed end of the clamping belt.

4. A check clamp according to claim 1, wherein: the insertion groove (6) extends along the length direction of the inner clamping belt (1) and is in a long groove shape; a plurality of inclined blocks (61) are uniformly arranged in the inserting groove (6) along the length direction; and an inclined surface is arranged on one side of the inclined block (61) back to the clamping fixed end.

5. A check clamp according to claim 1, wherein: the locking rod (53) is hinged with the clamping lug (4); a fixed seat (51) is arranged on the other side wall, opposite to the locking rod (53), in the clamping lug (4), and an accommodating groove (511) is formed in one side, facing the locking rod (53), of the fixed seat (51); the end part of the locking rod (53) extends into the accommodating groove (511), and the opening size of the accommodating groove (511) is larger than the end part of the locking rod (53).

6. A check clip according to claim 5, wherein: a connecting spring (52) is arranged in the accommodating groove (511), one end of the connecting spring (52) is fixed to the bottom wall of the accommodating groove (511), and the other end of the connecting spring is fixed to the end of the locking rod (53).

7. A check clip according to claim 5, wherein: a through hole is formed in the end part, connected with the clamping lug (4), of the locking rod (53), a hinged shaft (531) is detachably connected in the through hole, and two ends of the hinged shaft (531) extend out of the through hole; two sides of the locking rod (53) on the clamping lug (4) are respectively provided with a penetrating shaft part (41), and the penetrating shaft part (41) is provided with a through hole (411); two ends of the hinge shaft (531) are respectively arranged in the two through holes (411) in a penetrating way.

8. A check clamp according to claim 7, wherein: the shaft penetrating part (41) is integrally formed by the clamping lugs (4) through punching, and the penetrating holes (411) are formed by mutually staggering the shaft penetrating part (41) and the clamping lugs (4).

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