CN110173670B

CN110173670B - Adjustable clamp

Info

Publication number: CN110173670B
Application number: CN201910591153.0A
Authority: CN
Inventors: 李龙; 李文鹏; 王聚; 孙凯君
Original assignee: Shanghai Luoman Lighting Technologies Inc
Current assignee: Shanghai Pryson New Space Design Co ltd; Shanghai Roman Technology Co ltd
Priority date: 2019-07-02
Filing date: 2019-07-02
Publication date: 2024-03-12
Anticipated expiration: 2039-07-02
Also published as: CN110173670A

Abstract

The invention provides an adjustable clamp, which relates to the field of fixing pieces and comprises a pressing structure, a base, a clamp ring, a clamp belt and a fixing piece, wherein the pressing structure comprises a pressing arm and a pressing head, the pressing arm penetrates through the base to be in threaded connection with the base, the pressing head is arranged in the base, the pressing head is provided with a pressing mechanism towards the clamp belt, the pressing head is provided with a plurality of concave holes in the end face of the pressing head, a pressure spring is arranged in the concave holes, the top of the pressure spring is provided with a ball, the clamp ring is arc-shaped and annular, one end of the clamp ring is fixedly connected with the base, one end of the clamp belt is fixedly connected with the clamp ring, the other end of the clamp belt is a free end, the free end of the clamp belt can extend into the space between the pressing head and the base, the ball of the pressing head props against the clamp belt to enable the clamp belt to be attached to the base, and the fixing piece is fixedly connected with the clamp ring, and a notch for fixing a hung object is arranged on the fixing piece. The invention can continuously adjust the circumference through the stress balance along with the growth of the tree, and avoid serious damage to the tree, especially the bark.

Description

Adjustable clamp

Technical Field

The invention relates to the field of fixing parts, in particular to an adjustable clamp.

Background

At present, the illumination mode of installing equipment such as illumination appliances on trees is adopted for road landscape illumination, and in order to firmly install the equipment on the trees, an iron wire or a steel cable is coiled on a trunk or a branch so as to fix the equipment. The tree is fixed rigidly, and the tree grows continuously, so that over time, the wires or cables are embedded into the tree, the wires or cables embedded into the tree are firstly damaged by the tree bark, annular cutting damage is caused to the tree bark, the nutrient transport channels of the tree are mainly concentrated in the tree bark, the annular cutting damage effectively reduces or cuts off nutrient transport of the tree, the tree is malnourished and even necrotic, and the exposed tree wound is easily infected by pests or diseases, so that the tree is ill, and the whole tree is destroyed when serious. Even if later removed, such destructive wounds require a long recovery time, severely affecting tree health.

Disclosure of Invention

The invention aims to provide an adjustable clamp which can prevent damage to trees caused by embedding the adjustable clamp into the trees.

1. According to the adjustable clamp, the clamp comprises a pressing structure, a base, a clamp ring, a clamp belt 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 mode, the pressing head is arranged in the base, the pressing head is fixedly connected with one end of the pressing arm, the pressing head is provided with a pressing mechanism towards the clamp belt, the clamp ring is of a non-closed ring shape, one end of the clamp ring is fixedly connected with the base, one end of the clamp belt is fixedly connected with the clamp ring, the other end of the clamp belt is of a free end, the free end of the clamp belt can extend into the space between the pressing head and the base, so that the pressing mechanism is in pressing fit with the clamp belt to enable the clamp belt to be attached to the base, and the fixing piece is fixedly connected with the clamp ring or any one of the clamp belt.

According to the adjustable clamp, preferably, the center of the end face of the pressing mechanism is provided with the center concave hole, the rotating wheel is rotatably arranged in the center concave hole, the rotating wheel protrudes out of the end face and can be attached to the clamp, a rotary table is further arranged in the center concave hole, the rotary table is in transmission connection with the rotating wheel, one side of the rotating wheel is provided with the rotating arm, one end of the rotating arm is rotatably connected with the rotating wheel, the other end of the rotating arm is provided with the clamping head, the axis of the rotating arm and the diameter of the rotating wheel are provided with an included angle, the rotating arm and the rotating wheel are connected through the tension spring, the tension spring is arranged on one side, close to the clamping head, of the rotating arm, the connecting point of the tension spring and the rotating arm is close to one end, provided with the clamping head, of the rotating arm is provided with the limiting block, the limiting block is arranged on one side, far away from the clamping head, of the rotating arm and used for limiting the rotating of the rotating arm, the center concave hole is internally provided with the stop block, and the stop corresponds to the clamping head, and when the rotating arm faces the clamping head, the clamping head is rotated, and the stop is interfered with the rotating block.

The end face is provided with a central concave hole, a rotating wheel is arranged in the central concave hole, when the rotating wheel is attached to the hoop, the rotating wheel can be driven to rotate when the free end of the hoop slides, the faster the sliding speed of the hoop is, the faster the speed of the rotating wheel is, the fast rotating wheel can also drive the rotating disc to rotate, and the rotating arm can be driven to rotate by the fast rotating disc. When the rotating arm starts to rotate rapidly, the rotating arm can rotate in the opposite direction to the rotating direction of the rotating disc due to inertia, and at the moment, the clamping connector at one end of the rotating arm exceeds the boundary of the rotating disc, so that interference with the stop block occurs, and rapid rotation of the rotating disc is prevented. When the turntable rotates slowly, the rotating arm and the turntable rotate basically simultaneously, so that a large speed difference is not generated, the clamping joint of the rotating arm does not exceed the boundary of the turntable, interference of the clamping joint and the stop block is not generated, and the turntable can rotate smoothly.

With this arrangement, the movement of the band can be prevented when the band is instantaneously slid fast, but not when the band is slowly started to slide. Because the hoop is pulled by larger external force in the moment when the hoop starts to slide quickly in the moment, the external force is not the external force generated by tree growth, and the equipment, the cable or the adjustable clamp is damaged by non-staff, the hoop slides at the moment, so that the damage to the equipment by the staff can be avoided; when the tree grows normally, the outward expansion tension generated by the hoop and the hoop is very slow, and at the moment, the rotation and disconnection phenomenon of the rotating arm and the rotating disc cannot be caused due to small angular momentum, so that the rotating arm and the rotating disc basically rotate at the same time, interference of the clamping joint and the stop block is avoided, and the hoop can slide normally.

According to the adjustable clamp, preferably, the clamping connector is perpendicular to the rotating arm, the top of the clamping connector is arc-shaped, one end, away from the rotating arm, of the clamping connector is inclined, the inclined surface inclines towards the direction close to the rotating arm, one end, close to the rotating disc, of the stop block is arc-shaped, one side, close to the rotating arm, of the stop block is provided with the inclined surface groove, and the inclined surface groove corresponds to the inclined surface of the clamping connector.

The clamping connector is set to be an arc shape at the top and corresponds to the arc shape of the stop block, so that when the stop block is contacted with the clamping connector, the clamping connector can more smoothly slide, and only when the rotating arm and the rotating disc rotate relatively, the inclined surface of the clamping connector extends out of the edge of the rotating disc and corresponds to the inclined surface groove of the stop block, and interference occurs. The stop block can not stop the rotation of the turntable when the turntable normally rotates, but also stop the rotation arm rapidly when the turntable rapidly rotates, so as to stop the rotation of the turntable.

The adjustable clamp provided by the invention is characterized in that the rotating wheel is preferably a columnar rotating wheel, and the surface of the rotating wheel is provided with convex teeth for increasing the grabbing force. The grabbing force of the rotating wheel is improved through the convex teeth, so that the friction force between the rotating wheel and the hoop is increased conveniently, and the rotating wheel is prevented from slipping and cannot rotate along with the sliding of the hoop when the hoop rotates rapidly.

The adjustable clamp provided by the invention preferably comprises: offer a plurality of shrinkage pool 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 be in 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 in the shrinkage pool and set up, the kicking block with dog transmission cooperation is used for making the dog is driven when the 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 extrusion pressure spring, the pressure spring receives the extrusion, and elastic potential energy increases, makes the ball to the pressure of strap also increase through force conduction, makes the strap can not slide easily like this.

The adjustable clamp provided by the invention is characterized in that preferably, the stop block is further provided with a shifting block and an arc-shaped rod, the stop block is rotationally connected with the press head, the shifting block is fixedly connected with the stop block, a horn-shaped arc-shaped track is further arranged in the press head, the arc-shaped track comprises a large opening end and a small opening end, the arc-shaped rod is rotationally connected with the shifting block at the large opening end of the arc-shaped track, the small opening end of the arc-shaped track is provided with a linear track arranged along the protruding sliding direction, a slidable ejector rod is arranged in the linear track, one end of the ejector rod is connected with the ejector block, and the diameter of the arc-shaped rod is smaller than the diameter of the small opening end and the diameter of the linear track.

When the dog atress, can take place to rotate, and then drive the shifting block and also take place to rotate, at this moment rotate the arc pole that is connected with the shifting block and slide in the arc track for the arc pole advances to sharp track, because the arc pole can stretch into in the sharp track, and then can promote the ejector pin in the straight line track, the ejector pin drives the ejector block and slides, protruding extrusion pressure spring on the ejector block has increased the pressure of ball to the strap, thereby has improved the frictional force between strap and ball and the base, thereby realizes locking to the strap.

The adjustable clamp provided by the invention preferably further comprises a self-locking nut, wherein the self-locking nut is sleeved at one end of the pressing arm extending out of the base. The self-locking nut can prevent the threaded connection of the pressing arm and the base from loosening, and ensures that the pressure head on the pressing arm is stable to the pressure of the strap.

The adjustable clamp provided by the invention preferably further comprises a baffle, wherein the baffle is arranged in the clamp ring in a surrounding manner, the circumference of the baffle is smaller than that of the clamp ring, so that an observation port capable of being observed is formed, and the clamp is provided with a warning belt which is close to the free end of the clamp belt. Through the opening that the baffle formed, can direct observation strap, and be provided with the warning area on the strap, the length that can let the timely discovery strap of staff has been close the limit, needs to be changed or maintained.

According to the adjustable clamp, preferably, the clamping band is provided with the grooves correspondingly matched with the pressing mechanism. The grooves enable the combination of the hoop and the pressing mechanism to be tighter, so that the pressure head can control the hoop better, and the rolling balls on the pressure head are prevented from slipping, so that the pressure head can control the expansion of the hoop.

According to the adjustable clamp, preferably, the fixing piece is the clamping ring, and the clamping ring is welded with the clamp ring. The clamp ring is convenient for the installation of the lighting equipment, and is welded on the hoop, so that the clamp ring is firmly fixed with the hoop.

The tree growth regulating device has the beneficial effects that the circumference can be continuously regulated through stress balance along with the growth of the tree, so that serious damage to the tree, especially the bark, is avoided. According to the invention, the pressure spring and the ball in the pressure head are mainly used for extruding the hoop, the hoop is extruded to be attached to the hoop, the hoop is subjected to static friction force on two sides of the ball and the base, when a tree grows continuously, the hoop continuously bears the tension increased by the increase of the circumference of the tree, when the tension is larger than the static friction force borne by the hoop, the hoop slides, a part is extracted from the position between the pressure head and the base, after the part of the hoop is extracted, the circumference of the whole adjustable clamp is also increased, so that the tension of the hoop borne by the tree is reduced, and when the tension is reduced to be equal to the static friction force borne by the hoop, the hoop stops sliding, and through the continuous adjustment and balance steps, the adjustable clamp continuously changes the circumference of the tree along with the growth of the tree, so that the tree is prevented from being seriously damaged, and meanwhile, the installation of the lamplight equipment can be ensured.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings that are needed in the embodiments will be briefly described below, it being understood that the following drawings only illustrate some embodiments of the present invention and therefore should not be considered as limiting the scope, and other related drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.

FIG. 1 is an isometric view of a first embodiment of the invention;

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

FIG. 3 is an isometric view of a second embodiment of the 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 schematic view of the second embodiment A of 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 view of a pressing structure of the second embodiment in fig. 3;

fig. 9 is a schematic 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 drawing of the third embodiment band of FIG. 11 extracted;

FIG. 13 is an 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 the pressing structure of the third embodiment of FIG. 11;

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

fig. 17 is a schematic view of a part of the pressing structure of the third embodiment in fig. 11;

FIG. 18 is a schematic view showing a matching portion of a rotating wheel and a turntable according to a third embodiment of the present invention;

FIG. 19 is a schematic cross-sectional view of a ram of the pressing structure of the third embodiment of the invention of FIG. 16;

fig. 20 is a schematic sectional view showing an operation state of a ram of the pressing structure of the third embodiment of the present invention in fig. 16.

Icon:

base 101, hoop 102, band 103, mounting 104, arm 105, ram 106, shrinkage pool 107, pressure spring 108, ball 109, notch 110, central shrinkage pool 111, runner 112, drive connection 113, turntable 114, rotating arm 115, snap-fit joint 116, tension spring 117, stopper 118, stop 119, tooth 120, top block 121, boss 122, dial 123, arc rod 124, arc rail 125, straight rail 126, ejector rod 127, self-locking nut 128, baffle 129, viewing port 130, warning band 131, groove 132, warning area 132.

Detailed Description

The existing clamp is seriously damaged on trees.

In view of this, the inventors have devised an adjustable band that can vary with the circumference of the tree growth.

For the purpose of making the objects, technical solutions and advantages of the embodiments of the present invention more apparent, the technical solutions of 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 apparent that the described embodiments are some embodiments of the present invention, but not all embodiments of the present invention. The components of the embodiments of the present invention 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 invention, as presented in the figures, is not intended to limit the scope of the invention, as claimed, but is merely representative of selected embodiments of the invention. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.

It should be noted that: like reference numerals and letters denote like items in the following figures, and thus once an item is defined in one figure, no further definition or explanation thereof is necessary in the following figures.

In the description of the present invention, it should be noted that, directions or positional relationships indicated by terms such as "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., are directions or positional relationships based on those shown in the drawings, or are directions or positional relationships conventionally put in use of the inventive product, are merely for convenience of describing the present invention and simplifying the description, and are not indicative or implying that the apparatus or element to be referred to must have a specific direction, be constructed and operated in a specific direction, and thus should not be construed as limiting the present invention. Furthermore, the terms "first," "second," "third," and the like are used merely to distinguish between descriptions and should not be construed as indicating or implying relative importance.

Furthermore, the terms "horizontal," "vertical," "overhang," and the like do not denote a requirement that the component be absolutely horizontal or overhang, but rather may be slightly inclined. As "horizontal" merely means that its 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 explicitly specified and limited otherwise, the terms "disposed," "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the present invention will be understood in specific cases by those of ordinary skill in the art.

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

As shown in fig. 1-2, a 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 axis 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 to the base 101 in a lifting manner, (where the lifting connection is preferably threaded to form a lifting adjustment in this embodiment, but it will be understood by those skilled in the art that the lifting connection may be other prior art, so this embodiment is merely illustrative and not limiting), the pressing head 106 is fixedly connected to the pressing arm 105, and the pressing head 106 is provided toward the strap 103 with a pressing mechanism, where the pressing mechanism includes: a plurality of concave holes 107 are formed in the end face of the pressure head, a pressure spring 108 is arranged in the concave holes 107, balls 109 are arranged at the top of the pressure spring 108, and the balls 109 protrude out of the end face of the pressure head 106 and can only roll in the concave holes 107.

The hoop 102 is in a non-closed arc ring shape, 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 a warning area 132 is arranged in the hoop 102.

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

The fixing member 104 is fixedly connected to the hoop 102, and a notch 110 for fixing the suspended object is formed in the fixing member 104.

The beneficial effect of the embodiment is that the hoop 102 can continuously adjust the size of the hoop 102 through stress balance along with the growth of trees, so that the hoop 102 is prevented from seriously damaging the trees, especially the bark. According to the invention, the free end of the hoop 103 is mainly extended between the pressure head 106 and the base 101, the pressure head 106 is enabled to extrude the hoop 103 by adjusting the pressure arm 105, the pressure spring 108 in the pressure head 106 supports the ball 109 to extrude the hoop 103, the hoop 103 is extruded to be attached to the base 101, the hoop 103 receives static friction force from the ball 109 and the base 101 and cannot slide, fixing is achieved, and then the lighting device is arranged on the notch 110 of the fixing piece 104, so that fixing and installation are facilitated. When the tree grows continuously, the hoop 103 continuously bears the tension increased by the increase of the circumference, when the tension is larger than the static friction force borne by the hoop 103, the hoop 103 slides, and the part is pulled out from between the pressure head 106 and the base 101, so that the whole circumference of the embodiment is increased, the hoop 103 is further reduced by the tension increased by the circumference of the tree, and when the tension is reduced to be equal to the static friction force borne by the hoop 103, the hoop 103 stops sliding due to the balance of the force, and the lighting equipment is prevented from falling down. Through the step of continuous automatically regulated and atress balance like this, realized letting this embodiment along with trees growth constantly change its girth, the girth is also the girth, avoids causing serious destruction to trees, can also ensure light equipment's installation and fixed simultaneously.

In addition, the warning area 132 is provided in the hoop 102 of this embodiment, when the hoop of this embodiment is just on trees, the free end of the hoop 103 covers the warning area 132 completely, and along with the growth of trees, the warning area 132 in the hoop 102 can not be covered completely, and can be exposed, and in this time, the outside can know how much the hoop 103 has moved through directly observing the warning area 132, so as to be convenient for adjust this embodiment in time, avoid the hoop 103 to slide out completely, and influence the use.

As shown in fig. 3-10, a second embodiment of the present invention provides an adjustable clamp, which includes a pressing structure, a base 101, a hoop 102, a hoop 103 and a fixing member 104, where the base 101 is in a door-shaped structure, the pressing structure includes a pressing arm 105 and a pressing head 106, the axial direction of the pressing arm 105 is perpendicular to the surface of the hoop 103, the pressing arm 105 penetrates through the base 101 and is in threaded connection with the base 101, the pressing head 106 is disposed in the base 101, the pressing head 106 is fixedly connected with the pressing arm 105, the pressing head 106 is provided with a pressing mechanism toward the hoop 103, the pressing mechanism includes a plurality of concave holes 107 formed on the end face of the pressing head, a compression spring 108 is disposed in the concave holes 107, a ball 109 is disposed at the top of the compression spring 108, and the ball 109 protrudes the end face of the pressing head 106 and can only roll in the concave holes 107.

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

One end of the hoop 103 is fixedly connected with one end of the hoop 102, which is connected with the base 101, the other end of the hoop 103 is a free end, the free end of the hoop 103 can at least encircle one circle in the hoop 102 and extend into the space between the pressure head 106 and the base 101, and the balls 109 of the pressure head 106 are abutted against the hoop 103 to form a press fit, so that the hoop 103 is attached to the base 101.

The invention has the beneficial effects that the size of the hoop 102 can be continuously adjusted through stress balance along with the growth of trees, so that the hoop 102 is prevented from seriously damaging the trees, especially the barks. The invention mainly utilizes the hoop 103 to encircle the hoop 102, then the free end of the hoop 103 extends between the pressure head 106 and the base 101, the pressure head 106 is enabled to press the hoop 103 by adjusting the pressure arm 105, the pressure spring 108 in the pressure head 106 supports the ball 109 to press the hoop 103, the hoop 103 is pressed to be attached to the base 101, the hoop 103 receives static friction force from the ball 109 and the base 101 and cannot slide, the fixation is realized, and then the lighting device is arranged on the notch 110 of the fixing piece 104, so that the fixation and the installation are convenient. When the tree grows continuously, the hoop 103 continuously bears the tension increased by the increase of the circumference, when the tension is larger than the static friction force borne by the hoop 103, the hoop 103 slides, and the part is pulled out from between the pressure head 106 and the base 101, so that the whole circumference of the embodiment is increased, the hoop 103 is further reduced by the tension increased by the circumference of the tree, and when the tension is reduced to be equal to the static friction force borne by the hoop 103, the hoop 103 stops sliding due to the balance of the force, and the lighting equipment is prevented from falling down. Through the step of continuous automatically regulated and atress balance like this, realized letting this embodiment along with trees growth constantly change its girth, the girth is also the girth, avoids causing serious destruction to trees, can also ensure light equipment's installation and fixed simultaneously.

As shown in fig. 11-20, in the adjustable clamp according to the third embodiment of the present invention, further, on the basis of the second embodiment, a central concave hole 111 is provided at the center of the end surface, a rotating wheel 112 is rotatably provided in the central concave hole 111, the protruding end surface of the rotating wheel 112 can be attached to the strap 103, a rotating disc 114 is further provided in the central concave hole 111, the rotating disc 114 is in transmission connection 113 with the rotating wheel 112, and the transmission connection 113 may be gear connection, chain transmission or belt transmission. Preferably, a gear connection is used, and a ratio gear connection may be used, so that the rotational speed of the turntable 114 is greater than the rotational speed of the rotor 112, with better results.

One side of the rotating wheel 112 is provided with a rotating arm 115, one end of the rotating arm 115 is rotationally connected with the rotating wheel 112, the other end of the rotating arm 115 is provided with a clamping joint 116, 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 of the rotating disc 114 close to the clamping joint 116, a connecting 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 of the rotating arm 115 far away from the clamping joint 116 and used for limiting the rotating arm 115 to rotate, a stop 119 is arranged in a central concave hole 111, the stop 119 corresponds to the clamping joint 116, and when the rotating arm 115 rotates towards the limiting block 118, the clamping joint 116 interferes with the stop block 119 to stop the rotating disc 114.

When the invention is used, although the invention can ensure that the circumference is continuously increased along with the growth of trees, another problem is also caused, because the invention realizes the circumference adjustment through the stress balance, the invention is not just fixedly locked for the hoops 103, but only dynamic balance, if someone intentionally or unintentionally pulls the hoops 103, only the force is large enough to be larger than the static friction force suffered by the hoops 103, the hoops 103 can be torn off, and therefore, the invention and the lamplight equipment are taken off from the trees, and the equipment is easy to fall down or even injure pedestrians under the trees.

In order to avoid this, a central concave hole 111 needs to be formed in the end face of the pressure head 106, a rotating wheel 112 is disposed in the central concave hole 111, the rotating wheel 112 is attached to the strap 103, when the free end of the strap 103 slides, the rotating wheel 112 is driven to rotate, and the faster the strap 103 slides, the faster the rotating wheel 112 also rotates, and the faster the rotating wheel 112 also drives the turntable 114 to rotate rapidly.

In addition, since the rotating arm 115 is disposed on the rotating disc 114, when the rotating disc 114 rotates, the rotating arm 115 moves along with the rotating disc, but the following movement of the rotating arm 115 is different due to the speed of the starting moment of the rotating disc 114.

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

When the turntable 114 is started to rotate at a low speed, the rotating arm 115 is slightly influenced by inertia, and basically rotates simultaneously with the turntable 114, so that a large speed difference is not generated, the clamping joint 116 of the rotating arm 115 does not exceed the boundary of the turntable 114, interference between the clamping joint 116 and the stop block 119 does not occur, the turntable 114 can smoothly rotate, the rotating wheel 112 can continuously rotate, friction force between the rotating wheel 112 and the band 103 is not increased, the band 103 can continuously slide, the band 103 can be smoothly pulled out from between the pressure head 106 and the base 101, and the tree is removed.

This embodiment adopts such a configuration that the movement of the band 103 is prevented when the band 103 is slid fast, but the movement of the band 103 is not prevented when the band 103 is slid slowly. Because when the band 103 slides rapidly, the band 103 is mostly pulled by a sudden and larger external force, which is not tension generated by tree growth, and is mostly damage to equipment, cables or adjustable clamps by external force, the band 103 cannot slide continuously so as to avoid damage to the equipment; when the tree grows normally, the outward expansion tension generated on the hoop 103 and the hoop 102 is very slow, and at the moment, the rotation and disconnection phenomenon of the rotating arm 115 and the rotating disc 114 cannot be caused due to the small angular momentum of the rotating arm 115, so that the rotating arm 115 and the rotating disc 114 rotate basically at the same time, interference of the clamping joint 116 and the stop block 119 is avoided, and the hoop 103 can slide normally.

When the rotating wheel 112 stops rotating, the rotating disc 114 also stops rotating, and at the moment, under the action of the tension spring 117, the rotating arm 115 is reset, and the clamping connector 116 is further retracted, so that the clamping connector 116 is positioned in the boundary of the rotating disc 114, and the re-rotation of the rotating disc 114 is not affected.

In order to further improve the practical effect of the embodiment, the clamping connector 116 is perpendicular to the rotating arm 115, the top of the clamping connector 116 is arc-shaped, one end of the clamping connector 116 away from the rotating arm 115 is inclined, the inclined surface inclines towards the direction close to the rotating arm 115, one end of the stop block 119 close to the turntable 114 is arc-shaped, one side of the stop block 119 close to the rotating arm 115 is provided with an inclined surface groove, and the inclined surface groove corresponds to the inclined surface of the clamping connector 116.

The clamping connector 116 is arranged to be of an arc-shaped structure at the top and corresponds to the arc shape of the stop block 119, so that when the turntable 114 rotates slowly, the stop block 119 contacts with the clamping connector 116, the arc-shaped contact enables the clamping connector 116 to slide smoothly, and the phenomenon that the turntable 114 rotating slowly cannot rotate normally due to interference of the clamping connector 116 and the stop block 119 is avoided. When the turntable 114 rotates rapidly, the rotating arm 115 rotates relative to the turntable 114, and the inclined surface of the clamping joint 116 extends out of the edge of the turntable 114 to correspond to the inclined surface groove of the stop block 119, so that interference occurs. Thus, when the turntable 114 rotates normally, the stop block 119 does not block the rotation of the rotating arm 115, and when the turntable 114 rotates instantly and rapidly, the stop block blocks the rotating arm 115 rapidly, so that the rotation of the turntable 114 is blocked.

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 grip force. The grip of the runner 112 is improved by the convex teeth 120, so that the friction between the runner 112 and the band 103 is increased, and the runner 112 cannot rotate along with the band 103 when the band 103 slides fast, so that the runner 112 and the band 103 slide fast.

When the band 103 slides fast, though the block of the runner 112 can play a certain limiting role on the band 103, but the effect is limited, in order to further increase the control of the pressure head 106 on the band 103, the band 103 is prevented from sliding off fast, in this embodiment, the band further comprises a top block 121, the top block 121 is arranged in the pressure head 106 in a sliding manner, the top block 121 is provided with a plurality of protrusions 122, the protrusions 122 respectively correspond to the concave holes 107, the protrusions 122 extend into the concave holes 107 and slide in a sliding manner, and the stop block 119 is in transmission fit with the top block 121, so that the protrusions 122 on the top block 121 are driven to move towards the end face of the pressure head 106 when the stop block 119 is stressed. When the stopper 119 is stressed, that is, when the band 103 slides rapidly, at this time, the stopper 119 pushes the protrusion 122 to move toward the end face of the ram 106 through transmission, the compression spring 108 is pressed by the protrusion 122, the elastic potential energy of the compression spring 108 is increased, the pressure of the ball 109 on the band 103 is also increased through force conduction, and further, the static friction force between the ball 109 and the band 103 and between the band 103 and the base 101 is increased, so that the band 103 cannot slide easily. By the arrangement of the top block 121, the larger the force for driving the band 103 to slide quickly, the larger the pressure of the corresponding ball 109 on the band 103, so as to prevent the band 103 from sliding out under the pulling of external force.

Specifically, the transmission cooperation between the stop block 119 and the top block 121 in this embodiment is achieved through the following structure, as shown in fig. 19, the stop block 119 is further provided with a shifting block 123 and an arc rod 124, the stop block 119 is rotationally connected with the pressure head 106, the shifting block 123 is fixedly connected with the stop block 119, a trumpet-shaped arc track 125 is further provided in the pressure head 106, the arc track 125 comprises a large opening end and a small opening end, the arc rod 124 is rotationally connected with the shifting block 123 at the large opening end of the arc track 125, the small opening end of the arc track 125 is provided with a linear track 126 arranged along the sliding direction of the protrusion 122, a slidable top rod 127 is provided in the linear track 126, one end of the top rod 127 is connected with the top block 121, and the diameter of the arc rod 124 is smaller than the diameter of the small opening end and the diameter of the linear track 126.

In the working state, i.e. when the stopper 119 is forced, the rotation occurs, and since the dial 123 is located at the other side of the rotation axis of the stopper 119, the dial 123 also rotates, as shown in fig. 20. The arc lever 124 rotatably coupled to the dial 123 slides in the arc rail 125 such that the arc lever 124 is advanced toward the linear rail 126. Because the arc-shaped rod 124 can extend into the linear track 126, and then the arc-shaped 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 band 103, the bulge 122 moves along with the ejector block 121, the pressure spring 108 in the concave hole 107 is extruded, the pressure of the ball 109 to the band 103 is improved, the friction force between the ball 109 and the band 103 and between the band 103 and the base 101 is increased, and the sliding of the band 103 is prevented.

In this embodiment, a torsion spring may be provided to the stopper 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, where the self-locking nut 128 is sleeved on the end of the pressing arm 105 extending out of the base 101. Since the pressing arm 105 is screwed to the base 101, in use, due to the tendency of the band 103 to slip under the tension of the tree growth, the pressing head 106 may slightly rotate as the band 103 slides, and such slight rotation is cumulative, which may cause the pressing arm 105 to slip out of the base 101, so that the pressing head 106 is slightly away from the band 103, the pressure of the balls 109 on the band 103 is reduced, and the static friction between the band 103 and the balls 109 and the base 101 is also greatly reduced, so that the free end of the band 103 slips from between the pressing head 106 and the base 101, resulting in the lamp falling off, causing a hazard. The addition of the self-locking nut 128 can prevent the loose threaded connection between the pressing arm 105 and the base 101, and ensures the pressure stability of the pressure head 106 on the pressing arm 105 to the band 103.

In addition, in order to facilitate observation of the present embodiment, the present embodiment may be provided with a baffle 129, the baffle 129 is disposed around the hoop 102, and the circumference of the baffle 129 is smaller than that of the hoop 102, so as to form an observation port 130 capable of being observed, and the hoop 103 is provided with a warning band 131, where the warning band 131 is near the free end of the hoop 103. The opening formed by the baffle 129 allows direct observation of the band 103, and the provision of the warning band 131 at a position of the band 103 near the free end allows a worker to find 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 band 103 is illustrated as having slid substantially off the ram 106 and the base 101, and is immediately slipped off, requiring even replacement and maintenance.

In this embodiment, grooves 132 corresponding to the balls 109 are provided in the band 103. The combination of the hoop 103 and the balls 109 is tighter through the grooves 132, so that the control force of the pressure head 106 on the hoop 103 is stronger, and the balls 109 on the pressure head 106 are prevented from slipping, so that the control on the hoop 103 is prevented. The grooves 132 in this embodiment may also be round pits corresponding to the balls 109, which provides better control of the band 103.

Further, the fixing member 104 in this embodiment is a snap ring, and the snap ring is welded with the hoop 102. The snap ring is provided with the notch 110, the snap ring is welded on the hoop 102, so that the snap ring is firmly fixed with the hoop 102, and then the lamplight equipment is fixed on the notch 110 of the snap ring through an anchor bolt or a screw, so that the rapid and convenient installation of the equipment is realized.

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

Claims

1. The adjustable clamp is characterized by comprising a pressing structure, a base, a hoop belt 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 fixedly connected with one end of the pressing arm, the pressing head is provided with a pressing mechanism towards the direction of the hoop belt,

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 the space between the pressure head and the base to enable the pressing mechanism to be in pressing fit with the hoop so as to enable the hoop to be attached to the base,

the fixing piece is fixedly connected with any one of the hoop ring or the hoop belt,

the center of the end face of the pressing mechanism is provided with a center concave hole, the rotating wheel is rotatably arranged in the center concave hole, the rotating wheel protrudes out of the end face, a rotary table is further arranged in the center concave hole, the rotary table is in transmission connection with the rotating wheel, one side of the rotating wheel is provided with a rotating arm, one end of the rotating arm is rotatably connected with the rotating wheel, 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 are provided with an included angle, the rotating arm is connected with the rotating wheel through a tension spring, the tension spring is arranged on one side of the rotating table, which is close to one side of the clamping head, the connecting point of the tension spring and the rotating arm is close to one end provided with the clamping head, a limiting block is arranged on the rotating table, the limiting block is arranged at intervals with the rotating arm, the limiting block is arranged on one side, which is far away from the clamping head, and used for limiting the rotating arm to rotate, a stop block is arranged in the center concave hole, the stop block is corresponding to the rotating arm, when the rotating arm rotates to the stop block,

the clamping connector is perpendicular to the rotating arm, the top of the clamping connector is arc-shaped, one end of the clamping connector, which is far away from the rotating arm, is an inclined plane, the inclined plane is inclined towards the direction which is close to the rotating arm,

one end of the stop block, which is close to the turntable, is arc-shaped, one side of the stop block, which is close to the rotating arm, is provided with an inclined plane groove, the inclined plane groove corresponds to the inclined plane of the clamping head,

the rotating wheel is a columnar rotating wheel, and convex teeth for increasing the grabbing force are arranged on the surface of the rotating wheel.

2. The adjustable clamp of claim 1 wherein said hold down mechanism comprises: offer a plurality of shrinkage pool 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 be in 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 in the shrinkage pool and set up, the kicking block with dog transmission cooperation is used for making the dog is driven when the atress protruding on the kicking block to the terminal surface motion of pressure head.

3. The adjustable clamp of claim 2, wherein the stop block is further provided with a shifting block and an arc rod, the stop block is rotationally connected with the pressing head, the shifting block is fixedly connected with the stop block, a trumpet-shaped arc track is further arranged in the pressing head, the arc track comprises a large opening end and a small opening end, the arc rod is rotationally connected with the shifting block at the large opening end of the arc track, the small opening end of the arc track is provided with a linear track arranged along the protruding sliding direction, a slidable ejector rod is arranged in the linear track, one end of the ejector rod is connected with the ejector block, and the diameter of the arc rod is smaller than the diameter of the small opening end and the diameter of the linear track to be minimum.

4. The adjustable clamp of claim 1 further comprising a self-locking nut that is sleeved on an end of the press arm that extends out of the base.

5. The adjustable clamp of claim 1 further comprising a baffle disposed within the band, the baffle having a perimeter less than the perimeter of the band to form an observable viewing port, the band being provided with a warning band proximate the free end of the band.

6. The adjustable clamp of claim 1 wherein the band is provided with a recess that corresponds to the hold down mechanism.

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