CN209909824U

CN209909824U - Adjustable clamp

Info

Publication number: CN209909824U
Application number: CN201921031537.9U
Authority: CN
Inventors: 李龙; 李文鹏; 王聚; 孙凯君; 宋亦哲
Original assignee: SHANGHAI LUOMAN LIGHTING (GROUP) Co Ltd
Current assignee: Shanghai Roman Technology Co ltd
Priority date: 2019-07-02
Filing date: 2019-07-02
Publication date: 2020-01-07
Anticipated expiration: 2029-07-02

Abstract

The utility model provides an adjustable clamp, relate to the mounting field, including pressing the structure, a pedestal, the hoop, strap and mounting, press the structure including pressure arm and pressure head, the pressure arm runs through base and base threaded connection, the pressure head sets up in the base, the pressure head is equipped with hold-down mechanism towards the strap direction, it includes and has seted up a plurality of shrinkage pools on the pressure head terminal surface, be equipped with the pressure spring in the shrinkage pool, the top of pressure spring is equipped with the ball, the hoop is the arc ring type, the one end and the base fixed connection of hoop, the one end and the hoop fixed connection of strap, the other end of strap is the free end, the free end of strap can stretch into between pressure head and the base, the ball and the strap of pressure head offset messenger strap and base laminating, mounting and hoop fixed connection, be equipped with the notch that is used for fixing by the suspended. The utility model discloses can be along with trees growth, constantly adjust the girth through the atress balance, avoid causing serious destruction to trees especially bark.

Description

Adjustable clamp

Technical Field

The utility model relates to a mounting field particularly, relates to an adjustable clamp.

Background

At present, the road landscape lighting adopts a lighting mode of installing lighting electric appliances and other equipment on trees, and in order to firmly install the equipment on the trees, a steel wire or a steel cable is usually coiled on a trunk or a branch so as to fix the equipment. The fixing mode is rigid fixing, trees grow continuously, the iron wires or the steel cables can be embedded into the trees along with the time, the bark is firstly damaged by the steel wires or the steel cables embedded into the trees, annular cutting damage is caused to the bark, and the nutrient substance transportation channels of the trees are mainly concentrated in the bark, so that the annular cutting damage actually reduces or cuts off the nutrient substance transportation of the trees, the trees are poor in nutrition and even necrotize, and the exposed tree wounds are easily infected by pests or diseases due to the fact that the bark is cut, so that the trees are ill, and the whole trees are destroyed in serious cases. Even with later removal, such a destructive wound requires a long recovery time, severely impacting tree health.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide an adjustable clamp, can avoid adjustable clamp embedding trees to cause destruction to trees.

1. Based on the above purposes, the utility model provides an adjustable clamp, which comprises a pressing structure, a base, a hoop and a fixing piece, the base is of a door-shaped structure, the pressing structure comprises a pressing arm and a pressing head, the pressing arm is connected with the base in a lifting manner, wherein the pressure head is arranged in the base and is fixedly connected with one end of the pressure arm, the pressing head is provided with a pressing mechanism towards the direction of the hoop, the hoop is in a non-closed ring shape, one end of the hoop is fixedly connected with the base, one end of the hoop is fixedly connected with the hoop, the other end of the hoop is a free end, the free end of the hoop can extend into a position between the pressure head and the base, the clamping mechanism is matched with the clamping band in a pressing mode so that the clamping band is attached to the base, and the fixing piece is fixedly connected with the hoop or any one of the clamping bands.

The utility model provides an adjustable clamp, preferably, the center of the end face of the hold-down mechanism is provided with a central concave hole, a rotating wheel is arranged in the central concave hole, the rotating wheel protrudes out the end face can be attached to the strap, a rotating disc is arranged in the central concave hole and is connected with the rotating wheel in a transmission way, one side of the rotating wheel is provided with a rotating arm, one end of the rotating arm is connected with the rotating wheel in a rotating way, the other end of the rotating arm is provided with a clamping head, the axis of the rotating arm and the diameter of the rotating wheel form an included angle, the rotating arm is connected with the rotating wheel through a tension spring, the tension spring is arranged at one side of the rotating disc close to the clamping head, the connecting point of the tension spring and the rotating arm is close to one end provided with the clamping head, the rotating disc is provided with a limiting, and the limiting block is arranged on one side of the rotating arm far away from the clamping head and used for limiting the rotating arm to rotate, a stop block is arranged in the central concave hole and corresponds to the clamping head, and when the rotating arm rotates towards the stop block, the clamping head interferes with the stop block to stop the rotation of the rotary table.

Be provided with central shrinkage pool at the terminal surface, be equipped with the runner in the shrinkage pool of center, when the runner was laminated with the strap, when the free end of strap carries out the gliding, can drive the runner and rotate, and strap sliding speed is faster moreover, and the speed of runner is also faster, and quick runner also can drive the fast rotation of carousel, and fast pivoted carousel can drive the rotor arm and rotate. When the rotor arm begins fast rotation, because inertia can make the rotor arm rotate to the opposite direction of carousel rotation direction, at this moment, the joint that is located rotor arm one end can surpass the border of carousel to take place to interfere with the dog, and then prevent the fast rotation of carousel. When the turntable rotates at a low speed, the rotating arm basically rotates simultaneously with the turntable, so that great speed difference cannot be generated, the clamping joint of the rotating arm cannot exceed the boundary of the turntable, interference of the clamping joint and the stop block cannot occur, and the turntable can rotate smoothly.

With this arrangement, the movement of the band is prevented when the band is momentarily slid fast, but not when the sliding is initiated slowly. When the strap instantly and quickly begins to slide, the strap is pulled by a large external force instantly, the external force is not external force generated by tree growth and is mostly damage to equipment, cables or adjustable hoops by non-working personnel, and the strap slides more than once at this time, so that the damage to the equipment by the non-working personnel can be avoided; when trees grow normally, the tension of the outer expanding of the strap and the hoop is very slow, and at the moment, due to the fact that the angular momentum is small, the rotation disjointing phenomenon of the rotating arm and the rotating disc cannot be caused, the rotating arm basically rotates simultaneously with the rotating disc, the interference of the clamping joint and the stop block is avoided, and the strap can slide normally.

The utility model provides an adjustable clamp, preferably, the joint with the rotor arm is perpendicular, the top of joint is the arc, the joint is kept away from the one end of rotor arm is the inclined plane, the inclined plane is to being close to the direction slope of rotor arm, the dog is close to the one end of carousel is the arc, the dog is close to one side of rotor arm is equipped with the inclined plane groove, the inclined plane groove with the inclined plane of joint corresponds.

The clamping head is arranged to be arc-shaped at the top and is corresponding to the arc-shaped of the stop block, so that when the stop block is contacted with the clamping head, the clamping head can slide more smoothly, and only when the rotating arm and the rotating disc rotate relatively, the inclined plane of the clamping head extends out of the edge of the rotating disc and is corresponding to the inclined plane groove of the stop block, and interference occurs. When both having guaranteed that the carousel normally rotates, the dog does not block the carousel and rotates, can let the carousel rotate fast again, and the dog blocks the rotor arm fast, and then blocks the rotation of carousel.

The utility model provides an adjustable clamp, preferably, the runner is the column runner, the runner surface is equipped with the dogtooth that is used for increasing the power of grabbing. The grabbing force of the rotating wheel is improved through the convex teeth, so that the friction force between the rotating wheel and the strap is increased conveniently, and the rotating wheel is prevented from slipping and cannot rotate along with the sliding of the strap when the strap rotates rapidly.

The utility model provides an adjustable clamp, preferably, hold-down mechanism includes: seted up a plurality of shrinkage pools on the pressure head terminal surface, be equipped with the pressure spring in the shrinkage pool, the top of pressure spring is equipped with the ball, the ball protrusion the terminal surface of pressure head just can only roll in the shrinkage pool, still include the kicking block, the kicking block slides and sets up in the pressure head, the kicking block is equipped with a plurality of archs, the arch respectively with the shrinkage pool corresponds, the arch stretches into slide the setting in the shrinkage pool, the kicking block with dog transmission cooperation is used for making drive during the dog atress protruding on the kicking block to the terminal surface motion of pressure head. The kicking block drives the arch and slides in the shrinkage pool, when the dog atress, promotes protruding terminal surface motion to the pressure head to further extrude the pressure spring, the pressure spring receives the extrusion, and elastic potential energy increases, makes the ball also increase the pressure of strap through power conduction, makes the strap slide easily like this.

The utility model provides an adjustable clamp, preferably, the dog still is equipped with shifting block and arc pole, the dog with the pressure head rotates to be connected, the shifting block with dog fixed connection, still be equipped with the arc track of loudspeaker form in the pressure head, the arc track includes macrostoma end and microcephaly end, the arc pole is in the arc orbital macrostoma end with the shifting block rotates to be connected, the orbital microcephaly end of arc is equipped with the straight line track that sets up along bellied slip direction, be equipped with the slidable ejector pin in the straight line track, the one end of ejector pin with the ejector pin is connected, the diameter of arc pole is less than the diameter of microcephaly end with the orbital diameter minimum of straight line.

When the dog atress, can take place to rotate, and then it also takes place to rotate to drive the shifting block, at this moment rotate the arc pole of being connected with the shifting block and slide in the arc track, make the arc pole impel to linear rail, because the arc pole can stretch into linear rail in, and then can promote the ejector pin in the linear rail, the ejector pin drives the kicking block and slides, protruding extrusion pressure spring on the kicking block has increased the pressure of ball to the strap, thereby the frictional force between strap and ball and the base has been improved, thereby realize the locking to the strap.

The utility model provides an adjustable clamp, preferably, still include the auto-lock nut, the auto-lock nut cover is established the pressure arm stretches out the one end of base. The self-locking nut can prevent the threaded connection of the pressure arm and the base from loosening, and the pressure stability of the pressure head on the pressure arm to the strap is ensured.

The utility model provides an adjustable clamp, preferably, still include the baffle, the baffle ring is established in the hoop, the girth of baffle is less than the girth of hoop for form the viewing aperture that can observe, the strap is equipped with warning area, warning area is close to the free end of strap. Through the opening that the baffle formed, can direct observation strap, and be provided with warning area on the strap, can let the timely discovery of staff strap length have been close to the limit, need change or maintain.

The utility model provides an adjustable clamp, preferably, be equipped with on the strap with hold-down mechanism corresponds the recess that matches. The recess makes strap and hold-down mechanism's combination inseparabler to make the pressure head to the better control of strap, avoid the ball on the pressure head to take place to skid, influence the pressure head to the flexible control of strap.

The utility model provides an adjustable clamp, preferably, the mounting is the snap ring, the snap ring with the hoop welding. Utilize the snap ring to make things convenient for lighting apparatus's installation, pass through the welding with the snap ring on the hoop for the snap ring is firm fixed with the hoop.

The beneficial effects of the utility model are that the utility model discloses can be along with trees growth, through the atress balance constantly adjust the degree of enclosing, avoid causing serious destruction to trees especially bark. The utility model mainly utilizes the pressure spring and the ball in the pressure head to extrude the strap, the strap is extruded to be attached to the hoop, the strap is subjected to the static friction force of the ball and the two sides of the base, when the tree grows continuously, the strap bears the tension which is increased because of the increase of the circumference of the tree continuously, when the tension is larger than the static friction force which is borne by the strap, the strap slides, a part is drawn out from the position between the pressure head and the base, when the strap is drawn out, the circumference of the whole adjustable clamp is also increased, so that the tension of the clamp belt on the trees is reduced, when the tension is reduced to the static friction force that the strap received equals, the strap will stop sliding again, through the step of so constantly adjusting and balancing, realized letting adjustable clamp constantly change its periphery along with trees grow, avoid causing serious destruction to trees, can also ensure lighting equipment's installation simultaneously.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings that are required to be used in the embodiments will be briefly described below, it should be understood that the following drawings only illustrate some embodiments of the present invention, and therefore should not be considered as limiting the scope, and for those skilled in the art, other related drawings can be obtained according to the drawings without inventive efforts.

Fig. 1 is a schematic axial view of a first embodiment of the present invention;

FIG. 2 is a schematic view illustrating a usage state of the first embodiment in FIG. 1;

fig. 3 is an axial view of a second embodiment of the present invention;

FIG. 4 is a schematic top view of the second embodiment of FIG. 3;

FIG. 5 is a schematic front view of the second embodiment of FIG. 3;

FIG. 6 is an enlarged partial view of A of the second embodiment in FIG. 5;

FIG. 7 is a partial schematic view of the pressing structure and base of the second embodiment of FIG. 6;

FIG. 8 is a schematic diagram of a pressing structure of the second embodiment in FIG. 3;

FIG. 9 is a cross-sectional view of the pressing structure of FIG. 8;

FIG. 10 is a schematic view of a hoop according to a second embodiment of the present invention;

fig. 11 is a schematic view of a third embodiment of the present invention;

FIG. 12 is a schematic view of the third embodiment of the cuff of FIG. 11 shown withdrawn;

FIG. 13 is a schematic isometric view of the third embodiment of FIG. 11;

FIG. 14 is a schematic front view of the third embodiment of FIG. 11;

FIG. 15 is a schematic view of a pressing structure of the third embodiment in FIG. 11;

FIG. 16 is a schematic front view of the pressing structure of the third embodiment in FIG. 11;

FIG. 17 is a partial schematic structural view of a pressing structure of the third embodiment in FIG. 11;

fig. 18 is a schematic structural view of a fitting portion of a rotary wheel and a rotary table according to a third embodiment of the present invention;

fig. 19 is a schematic cross-sectional view of the indenter of the pressing structure of the third embodiment of the present invention in fig. 16;

fig. 20 is a schematic cross-sectional view illustrating a first ram operating state of the pressing structure according to the third embodiment of the present invention in fig. 16.

Icon:

the device comprises a base 101, a hoop 102, a belt 103, a fixing piece 104, a pressing arm 105, a pressing head 106, a concave hole 107, a pressure spring 108, a ball 109, a notch 110, a central concave hole 111, a rotating wheel 112, a transmission connection 113, a rotating disc 114, a rotating arm 115, a clamping joint 116, a tension spring 117, a limiting block 118, a stop block 119, a convex tooth 120, a top block 121, a protrusion 122, a shifting block 123, an arc-shaped rod 124, an arc-shaped track 125, a linear track 126, a top rod 127, a self-locking nut 128, a baffle 129, an observation port 130, a warning belt 131, a groove 132 and a warning area 132.

Detailed Description

The existing clamp hoop seriously damages trees.

In view of this, utility model people have designed one kind and can be along with the adjustable clamp that trees growth girth changed.

In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all, embodiments of the present invention. The components of embodiments of the present invention, as generally described and illustrated in the figures herein, may be arranged and designed in a wide variety of different configurations.

Thus, the following detailed description of the embodiments of the present invention, presented in the accompanying drawings, is not intended to limit the scope of the invention, as claimed, but is merely representative of selected embodiments of the invention. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.

It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, it need not be further defined and explained in subsequent figures.

In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", and the like indicate the position or positional relationship based on the position or positional relationship shown in the drawings, or the position or positional relationship which is usually placed when the product of the present invention is used, and are only for convenience of description and simplification of the description, but do not indicate or imply that the device or element referred to must have a specific position, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," "third," and the like are used solely to distinguish one from another and are not to be construed as indicating or implying relative importance.

Furthermore, the terms "horizontal", "vertical", "overhang" and the like do not imply that the components are required to be absolutely horizontal or overhang, but may be slightly inclined. For example, "horizontal" merely means that the direction is more horizontal than "vertical" and does not mean that the structure must be perfectly horizontal, but may be slightly inclined.

In the description of the present invention, it should also be noted that, unless otherwise explicitly specified or limited, the terms "disposed," "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.

It should be noted that, in the present invention, the embodiments and features of the embodiments may be combined with each other without conflict.

As shown in fig. 1-2, the first embodiment of the present invention provides an adjustable clamp, including a pressing structure, a base 101, a hoop 102, a strap 103 and a fixing member 104, where the base 101 is a door-shaped structure, the pressing structure includes a pressing arm 105 and a pressing head 106, an axial direction of the pressing arm 105 is perpendicular to a surface of the strap 103, the pressing arm 105 penetrates through the base 101 and is connected with the base 101 in a lifting manner, (where the lifting connection in this embodiment preferably adopts a threaded connection to form a lifting adjustment, but those skilled in the art can understand that the lifting connection may also be formed by other prior arts, and therefore, this embodiment is only an example and is not a limitation) the pressing head 106 is disposed in the base 101, the pressing head 106 is fixedly connected with the pressing arm 105, and the pressing head 106 is provided with a pressing mechanism toward the strap 103, where the pressing mechanism: a plurality of concave holes 107 are formed in the end face of the pressure head, a pressure spring 108 is arranged in each concave hole 107, a ball 109 is arranged at the top of each pressure spring 108, and each ball 109 protrudes out of the end face of the pressure head 106 and can only roll in each concave hole 107.

The hoop 102 is an unclosed arc ring, the cross section of the hoop 102 is a c-shaped cross section, one end of the hoop 102 is fixedly connected with the base 101, and an alarm area 132 is arranged in the hoop 102.

One end of the clamp belt 103 is fixedly connected with one end of the hoop 102, which is connected with the fixing member 104, the clamp belt 103 and the hoop 102 are integrally formed, the other end of the clamp belt 103 is a free end, the free end of the clamp belt 103 can extend into the space between the pressure head 106 and the base 101, the free end of the clamp belt 103 can penetrate into the hoop 102 and cover the warning area 132, and the ball 109 of the pressure head 106 abuts against the clamp belt 103 to form a press fit, so that the clamp belt 103 is attached to the base 101.

The fixing member 104 is fixedly connected with the hoop 102, and the fixing member 104 is provided with a notch 110 for fixing the hung object.

The beneficial effect of the embodiment is that the hoop 102 can continuously adjust the size of the hoop 102 through the stress balance as the tree grows, so as to avoid serious damage of the hoop 102 to the tree, especially the bark. The utility model discloses mainly utilize and stretch into the free end of strap 103 between pressure head 106 and the base 101, through adjusting pressure arm 105, make pressure head 106 extrusion strap 103, pressure spring 108 in the pressure head 106 supports ball 109 and extrudees strap 103, strap 103 is extruded to laminating with base 101, strap 103 receives the stiction power that comes from ball 109 and base 101, can not slide, it is fixed to have realized, then install lighting equipment on the notch 110 of mounting 104, be convenient for fixed and installation. And after trees are continuously grown, the strap 103 continuously bears the tension of trees increased because of circumference increase, when this tension is greater than the static friction force that the strap 103 received, the strap 103 just can slide, draw out the part from between pressure head 106 and base 101, make the whole circumference of this embodiment increase, and then make the strap 103 receive the tension that comes from the trees circumference increase and reduce, when tension reduces to the static friction force that receives with the strap 103 equal, because the power is balanced, the strap 103 will stop sliding again, light equipment has been guaranteed and can not drop. Through the step of continuous automatically regulated and stress balance like this, realized letting this embodiment constantly change its girth along with trees grow, the girth also is the girth, avoids causing serious destruction to trees, can also ensure lighting equipment's installation and fixed simultaneously.

In addition, the hoop 102 of the embodiment is internally provided with the warning area 132, when the embodiment is clamped on a tree, the free end of the strap 103 completely covers the warning area 132, and along with the growth of the tree, the strap 103 is drawn out, and the warning area 132 in the hoop 102 cannot be completely covered and can be exposed, so that the outside can know how much the strap 103 moves by directly observing the warning area 132, and the embodiment is convenient to adjust in time, thereby preventing the strap 103 from sliding out completely and affecting the use.

As shown in fig. 3-10, the utility model provides an adjustable clamp, including pressing down the structure, base 101, hoop 102, strap 103 and mounting 104, base 101 is the door column structure, press down the structure including pressing arm 105 and pressure head 106, the axis direction and the strap 103 perpendicular surface of pressing arm 105, pressing arm 105 runs through base 101 and base 101 threaded connection, pressure head 106 sets up in base 101, pressure head 106 and pressing arm 105 fixed connection, pressure head 106 is equipped with hold-down mechanism towards strap 103 direction, it includes has seted up a plurality of shrinkage pools 107 on the pressure head terminal surface, be equipped with pressure spring 108 in the shrinkage pool 107, the top of pressure spring 108 is equipped with ball 109, ball 109 protrudes the terminal surface of pressure head 106 and can only roll in shrinkage pool 107.

The hoop 102 is an arc ring, the cross section of the hoop 102 is a c-shaped cross section, and one end of the hoop 102 is fixedly connected with the base 101.

One end of the clamping band 103 is fixedly connected with one end of the hoop 102 connected with the base 101, the other end of the clamping band 103 is a free end, the free end of the clamping band 103 can at least encircle a circle in the hoop 102 and extend into a space between the pressing head 106 and the base 101, and the ball 109 of the pressing head 106 is pressed against the clamping band 103 to form a compression fit, so that the clamping band 103 is attached to the base 101.

The beneficial effects of the utility model are that let hoop 102 can be along with trees growth, through the size of stress balance constantly adjusting hoop 102, avoid hoop 102 to cause serious destruction to trees especially bark. The utility model discloses mainly utilize and encircle hoop 102 with strap 103, then stretch into between pressure head 106 and the base 101 with the free end of strap 103, through adjusting pressure arm 105, make pressure head 106 extrusion strap 103, pressure spring 108 in the pressure head 106 supports ball 109 and extrudees strap 103, strap 103 is extruded to laminating with base 101, strap 103 receives the stiction power that comes from ball 109 and base 101, can not slide, it is fixed to have realized, then install lighting equipment on the notch 110 of mounting 104, be convenient for fixed and installation. And after trees are continuously grown, the strap 103 continuously bears the tension of trees increased because of circumference increase, when this tension is greater than the static friction force that the strap 103 received, the strap 103 just can slide, draw out the part from between pressure head 106 and base 101, make the whole circumference of this embodiment increase, and then make the strap 103 receive the tension that comes from the trees circumference increase and reduce, when tension reduces to the static friction force that receives with the strap 103 equal, because the power is balanced, the strap 103 will stop sliding again, light equipment has been guaranteed and can not drop. Through the step of continuous automatically regulated and stress balance like this, realized letting this embodiment constantly change its girth along with trees grow, the girth also is the girth, avoids causing serious destruction to trees, can also ensure lighting equipment's installation and fixed simultaneously.

As shown in fig. 11-20, the utility model provides an adjustable clamp according to the third embodiment, on the basis of the second embodiment, furthermore, the center of terminal surface is equipped with central concave hole 111, runner 112 rotates and sets up in central concave hole 111, runner 112 protrudes the terminal surface and can laminate with strap 103, still is equipped with carousel 114 in central concave hole 111, carousel 114 and runner 112 transmission connection 113, this transmission connection 113 can be for gear connection, also can be through chain drive or belt drive. Preferably, a gear connection is adopted, and a speed change gear connection can be adopted, so that the rotating speed of the rotating disc 114 is greater than that of the rotating wheel 112, and the effect is better.

A rotating arm 115 is arranged on one side of the rotating wheel 112, one end of the rotating arm 115 is rotatably connected with the rotating wheel 112, a clamping joint 116 is arranged at the other end of the rotating arm 115, an included angle is formed between the axis of the rotating arm 115 and the diameter of the rotating wheel 112, the rotating arm 115 is connected with the rotating wheel 112 through a tension spring 117, the tension spring 117 is arranged on one side, close to the clamping joint 116, of the rotating disc 114, the connection point of the tension spring 117 and the rotating arm 115 is close to one end, provided with the clamping joint 116, a limiting block 118 is arranged on the rotating disc 114, the limiting block 118 and the rotating arm 115 are arranged at intervals, the limiting block 118 is arranged on one side, far away from the clamping joint 116, of the rotating arm 115 and used for limiting the rotation of the rotating arm 115, a limiting block 119 is arranged in the central concave hole 111.

The utility model discloses in the time of using, though can guarantee to let the utility model discloses constantly increase the degree of enclosing along with trees grow, but another problem also appears, because the utility model discloses a realize the regulation of degree of enclosing through force balance, so to strap 103, be not dead to this positive fixed lock, and only dynamic balance, if someone intentionally or unintentionally pulls strap 103, only strength is enough big, is greater than the static friction force that strap 103 received, that alright tear strap 103 apart, thereby will light equipment takes off from the tree, causes falling of equipment or even the pedestrian of accidental injury under the tree easily.

In order to avoid this, it is necessary to provide a central recess 111 on the end surface of the pressing head 106, and a rotating wheel 112 is disposed in the central recess 111, and the rotating wheel 112 is attached to the clamping band 103, so that when the free end of the clamping band 103 slides, the rotating wheel 112 is driven to rotate, and the faster the clamping band 103 slides, the faster the rotating wheel 112 drives the rotating disc 114 to rotate quickly.

In addition, since the turntable 114 is provided with the rotating arm 115, when the turntable 114 rotates, the rotating arm 115 moves, but the following movement of the rotating arm 115 is different because of the speed of the starting instant of the turntable 114.

When the turntable 114 starts to rotate rapidly at an instant, the rotating arm 115 can rotate towards the direction opposite to the rotating direction of the turntable 114 due to inertia of the rotating arm 115, at this time, the clamping joint 116 at one end of the rotating arm 115 can exceed the boundary of the turntable 114, so as to interfere with the stop 119, and block the rotation of the rotating arm 115, and meanwhile, the rotating arm 115 can be blocked by the stop block 118 on the turntable 114, so that the rotation of the turntable 114 can be blocked by blocking the rotating arm 115, the turntable 114 drives the rotating wheel 112 to stop, the friction force with the strap 103 is increased, the strap 103 is prevented from sliding continuously, and the strap 103 is prevented from sliding out from between the pressure head 106 and the base 101.

And when carousel 114 starts the pivoted at a slow speed, because rotor arm 115 receives inertia influence less this moment, rotate simultaneously with carousel 114 basically, can not produce great speed difference, so rotor arm 115's joint 116 can not surpass the border of carousel 114, and then can not take place the interference of joint 116 and dog 119 yet, carousel 114 can rotate smoothly, runner 112 also can continue to rotate, can not increase runner 112 and strap 103's frictional force, strap 103 can continue to slide, can take out strap 103 from between pressure head 106 and the base 101 smoothly, will the utility model discloses take off from trees.

This embodiment is configured so that the motion of the band 103 is inhibited when the band 103 slides rapidly and not inhibited when the band 103 slides slowly. When the strap 103 slides rapidly, most of the strap 103 is pulled by a sudden large external force, the external force is not tension generated by tree growth, most of the external force is damage to equipment, cables or adjustable clamps, and the strap 103 cannot slide continuously to avoid damage to the equipment; when the tree grows normally, the outward-expanding tension on the clamp belt 103 and the hoop 102 is very slow, and at this time, because the angular momentum of the rotating arm 115 is small, the rotation of the rotating arm 115 and the rotating disc 114 is not disjointed, so that the rotating arm 115 and the rotating disc 114 rotate basically at the same time, the interference of the clamping head 116 and the stop block 119 is avoided, and the clamp belt 103 can slide normally.

When the turning wheel 112 stops rotating, the turning disc 114 also stops rotating, at this time, under the action of the tension spring 117, the rotating arm 115 is reset, and the bayonet joint 116 is retracted, so that the bayonet joint 116 is located in the boundary of the turning disc 114, and the re-rotation of the turning disc 114 is not influenced.

In order to further improve the practical effect of this embodiment, the latch joint 116 is perpendicular to the rotating arm 115, the top of the latch joint 116 is an arc, one end of the latch joint 116 away from the rotating arm 115 is an inclined plane, the inclined plane inclines towards the direction close to the rotating arm 115, one end of the stopper 119 close to the turntable 114 is an arc, one side of the stopper 119 close to the rotating arm 115 is provided with an inclined plane groove, and the inclined plane groove corresponds to the inclined plane of the latch joint 116.

Set up bayonet joint 116 to the arc structure at top, corresponding with the arc of dog 119, when carousel 114 is rotatory at a slow speed, when dog 119 contacted with bayonet joint 116, the arc made bayonet joint 116 can more smooth and easy the slip through with curved contact like this, avoided making slow rotating carousel 114 also can not normally rotate because bayonet joint 116 interferes with dog 119. When the turntable 114 rotates rapidly in a moment, the rotating arm 115 rotates relative to the turntable 114, and the inclined plane of the latch 116 extends out of the edge of the turntable 114 and corresponds to the inclined plane groove of the stopper 119 to interfere with the inclined plane groove. Therefore, when the turntable 114 rotates normally, the stop 119 does not stop the rotation of the rotating arm 115, and when the turntable 114 rotates rapidly in the instant, the stop rapidly stops the rotating arm 115 to stop the rotation of the turntable 114.

The rotating wheel 112 in this embodiment is a cylindrical rotating wheel 112, and the surface of the rotating wheel 112 is provided with convex teeth 120 for increasing the gripping force. The gripping force of the wheel 112 is increased by the convex teeth 120, so that the friction between the wheel 112 and the band 103 is increased, and the wheel 112 cannot rotate along with the sliding of the band 103 due to the slipping between the wheel 112 and the band 103 when the band 103 slides rapidly.

When strap 103 is the time of the quick slip, though the prevention through runner 112, can play certain restriction to strap 103, but the effect is limited, in order to further increase the control of pressure head 106 to strap 103, avoid strap 103 to slide fast, still include kicking block 121 in this embodiment, kicking block 121 slides and sets up in pressure head 106, kicking block 121 is equipped with a plurality of archs 122, arch 122 corresponds with shrinkage pool 107 respectively, arch 122 stretches into shrinkage pool 107 and slides the setting, dog 119 and kicking block 121 transmission fit, be used for making arch 122 on the dog 119 atress drive kicking block 121 to the terminal surface motion of pressure head 106. When the stopper 119 is stressed, that is, when the cuff 103 slides rapidly, at this time, the stopper 119 pushes the protrusion 122 to move towards the end surface of the pressure head 106 through transmission, the pressure spring 108 is extruded by the protrusion 122, the elastic potential energy of the pressure spring 108 is increased, the pressure of the ball 109 on the cuff 103 is also increased through force transmission, and then the static friction force between the ball 109 and the cuff 103 and between the cuff 103 and the base 101 is increased, so that the cuff 103 cannot slide easily. By arranging the top block 121, the larger the force for driving the belt 103 to slide rapidly, the larger the pressure of the corresponding ball 109 on the belt 103, so as to prevent the belt 103 from sliding out when being pulled by external force.

Specifically, the transmission fit of the stopper 119 and the ejector block 121 in this embodiment is realized through the following structure, as shown in fig. 19, the stopper 119 is further provided with a shifting block 123 and an arc rod 124, the stopper 119 is rotatably connected with the pressure head 106, the shifting block 123 is fixedly connected with the stopper 119, a horn-shaped arc rail 125 is further provided in the pressure head 106, the arc rail 125 includes a large-opening end and a small-opening end, the arc rod 124 is rotatably connected with the shifting block 123 at the large-opening end of the arc rail 125, the small-opening end of the arc rail 125 is provided with a linear rail 126 arranged along the sliding direction of the protrusion 122, a slidable ejector rod 127 is provided in the linear rail 126, one end of the ejector rod 127 is connected with the ejector block 121, and the diameter of the arc rod 124 is smaller than the diameter of the small.

As shown in fig. 20, in a first operating state, when the stopper 119 is stressed, the rotation occurs, and the shift block 123 rotates because the shift block 123 is located on the other side of the rotation axis of the stopper 119. At this time, the arc rod 124 rotatably coupled to the dial 123 slides in the arc rail 125, so that the arc rod 124 is pushed toward the linear rail 126. Because the arc rod 124 can stretch into the linear track 126, and then the arc rod 124 can push the ejector rod 127 in the linear track 126, the ejector rod 127 drives the ejector block 121 to slide towards the direction close to the clamping band 103, the protrusion 122 moves along with the ejector block 121, and the pressure spring 108 in the concave hole 107 is extruded, so that the pressure of the ball 109 on the clamping band 103 is improved, the friction force between the ball 109 and the clamping band 103 and between the clamping band 103 and the base 101 is increased, and the sliding of the clamping band 103 is prevented.

In this embodiment a torsion spring may be provided to the stop 119 to return it.

In order to make the present embodiment more durable, a self-locking nut 128 may be further provided in the present embodiment, and the self-locking nut 128 is sleeved on an end of the pressing arm 105 extending out of the base 101. Since the pressing arm 105 is screwed with the base 101, when in use, due to the tension tendency of the belt 103 caused by the growth of trees, the pressing head 106 may slightly rotate when the belt 103 slides, and such slight rotation may cause the pressing arm 105 to slide out of the base 101, so that the pressing head 106 slightly moves away from the belt 103, so that the pressure of the balls 109 on the belt 103 is reduced, the static friction force between the belt 103 and the balls 109 and the base 101 is greatly reduced, so that the free end of the belt 103 slides out from between the pressing head 106 and the base 101, and the lighting equipment falls down, causing danger. The self-locking nut 128 is added to prevent the threaded connection between the pressing arm 105 and the base 101 from loosening, and ensure the stable pressure of the pressing head 106 on the pressing arm 105 on the clamping band 103.

In addition, to facilitate the observation of the present embodiment, a baffle 129 may be provided, the baffle 129 is disposed within the hoop 102, the baffle 129 has a circumference smaller than the circumference of the hoop 102 to form a viewing opening 130 for the observation, and the band 103 is provided with a warning band 131, the warning band 131 is near the free end of the band 103. The strap 103 can be viewed directly through the opening formed by the baffle 129, and the warning band 131 is disposed near the free end of the strap 103 to allow a worker to see the warning band 131 through the viewing port 130, and once the warning band 131 is found through the viewing port 130, the free end of the strap 103 is shown to have slid out of the ram 106 and base 101, and then slid off immediately, requiring replacement or maintenance.

In this embodiment, the band 103 is provided with grooves 132 corresponding to the balls 109. The clamp belt 103 is tightly combined with the ball 109 through the groove 132, so that the control force of the pressure head 106 on the clamp belt 103 is stronger, and the ball 109 on the pressure head 106 is prevented from slipping to influence the control on the clamp belt 103. The grooves 132 of this embodiment can also be circular depressions corresponding to the balls 109, which provides better control of the band 103.

Further, the fixing element 104 in this embodiment is a snap ring, and the snap ring is welded to the hoop 102. The clamping ring is provided with a notch 110, the clamping ring is welded on the hoop 102, so that the clamping ring is firmly fixed with the hoop 102, and then the lighting equipment is fixed on the notch 110 of the clamping ring through an anchor bolt or a screw, so that the equipment can be quickly and conveniently installed.

The above is only a preferred embodiment of the present invention, and is not intended to limit the present invention, and various modifications and changes will occur to those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. An adjustable clamp is characterized by comprising a pressing structure, a base, a hoop and a fixing piece, wherein the base is of a door-shaped structure, the pressing structure comprises a pressing arm and a pressing head, the pressing arm is connected with the base in a lifting manner, the pressing head is arranged in the base and is fixedly connected with one end of the pressing arm, the pressing head is provided with a pressing mechanism towards the direction of the hoop, the hoop is of a non-closed ring shape, one end of the hoop is fixedly connected with the base, one end of the hoop is fixedly connected with the hoop, the other end of the hoop is a free end, the free end of the hoop can extend into the space between the pressing head and the base so that the pressing mechanism and the hoop can be in compression fit to enable the hoop to be attached to the base,

the fixing piece is fixedly connected with either the hoop or the strap.

2. The adjustable clamp of claim 1, wherein a central recess is formed in a center of an end surface of the pressing mechanism, a rotating wheel is rotatably disposed in the central recess, the rotating wheel protrudes out of the end surface, a rotating disc is further disposed in the central recess, the rotating disc is in transmission connection with the rotating wheel, a rotating arm is disposed on one side of the rotating wheel, one end of the rotating arm is rotatably connected with the rotating wheel, a clamping head is disposed on the other end of the rotating arm, an included angle is formed between an axis of the rotating arm and a diameter of the rotating wheel, the rotating arm is connected with the rotating wheel through a tension spring, the tension spring is disposed on one side of the rotating disc close to the clamping head, a connecting point of the tension spring and the rotating arm is close to one end provided with the clamping head, a limiting block is disposed on the rotating disc, and the limiting block is spaced, and the limiting block is arranged on one side of the rotating arm far away from the clamping head and used for limiting the rotating arm to rotate, a stop block is arranged in the central concave hole and corresponds to the clamping head, and when the rotating arm rotates towards the stop block, the clamping head interferes with the stop block to stop the rotation of the rotary table.

3. The adjustable clamp of claim 2, wherein the clamp head is perpendicular to the pivot arm, a top of the clamp head is curved, an end of the clamp head away from the pivot arm is a sloped surface, the sloped surface is inclined toward a direction close to the pivot arm, an end of the stop near the turntable is curved, and a side of the stop near the pivot arm is provided with a sloped surface groove corresponding to the sloped surface of the clamp head.

4. The adjustable clamp of claim 2, wherein the runner is a cylindrical runner, and the surface of the runner is provided with teeth for increasing the grip.

5. The adjustable clamp of claim 2, wherein the hold-down mechanism comprises: seted up a plurality of shrinkage pools on the pressure head terminal surface, be equipped with the pressure spring in the shrinkage pool, the top of pressure spring is equipped with the ball, the ball protrusion the terminal surface of pressure head just can only roll in the shrinkage pool, still include the kicking block, the kicking block slides and sets up in the pressure head, the kicking block is equipped with a plurality of archs, the arch respectively with the shrinkage pool corresponds, the arch stretches into slide the setting in the shrinkage pool, the kicking block with dog transmission cooperation is used for making drive during the dog atress protruding on the kicking block to the terminal surface motion of pressure head.

6. The adjustable clamp according to claim 5, wherein the stopper further comprises a shift block and an arc-shaped rod, the stopper is rotatably connected to the pressing head, the shift block is fixedly connected to the stopper, a horn-shaped arc-shaped rail is further arranged in the pressing head, the arc-shaped rail comprises a large opening end and a small opening end, the arc-shaped rod is rotatably connected to the shift block at the large opening end of the arc-shaped rail, the small opening end of the arc-shaped rail is provided with a linear rail arranged along a protruding sliding direction, a slidable ejector rod is arranged in the linear rail, one end of the ejector rod is connected to the ejector block, and the diameter of the arc-shaped rod is smaller than the diameter of the small opening end and the minimum diameter of the linear rail.

7. The adjustable clamp of claim 2, further comprising a self-locking nut disposed about an end of the pressure arm extending beyond the base.

8. The adjustable clamp of claim 1, further comprising a baffle disposed within the band, the baffle having a circumference less than a circumference of the band to form a viewing port for viewing, the band having a warning band disposed proximate a free end of the band.

9. The adjustable clamp of claim 1, wherein the band has a groove that mates with the compression mechanism.

10. The adjustable clamp of claim 1, wherein the securing member is a snap ring welded to the clamp.