CN111044199A

CN111044199A - Binding belt tensioning dynamometer

Info

Publication number: CN111044199A
Application number: CN201911358287.4A
Authority: CN
Inventors: 阮卜琴; 牛胜良
Original assignee: Zhejiang Topsun Logistic Control Co Ltd
Current assignee: Zhejiang Topsun Logistic Control Co Ltd
Priority date: 2019-12-25
Filing date: 2019-12-25
Publication date: 2020-04-21
Anticipated expiration: 2039-12-25
Also published as: CN111044199B

Abstract

The invention provides a binding belt tensioning dynamometer, belongs to the technical field of logistics binding equipment, and solves the problems that the tensioning force value of a binding belt is difficult to judge when the binding belt is tightened in the prior art, and the binding belt tensioning force value is large or insufficient. This binding belt tension dynamometer includes the bracket, is equipped with gasbag and bracket on the bracket and can supports the gasbag, lies in the gasbag both sides on the bracket and still is equipped with respectively and presses the area part, every presses and all has the clearance that supplies to bind and take to pass between area part and the gasbag, and the gasbag pushes up the top pressure portion of pressing on binding the area when being in the inflation state is higher than every and presses the area part of pressing on binding the area of pressing, is connected with the atmospheric pressure detecting element who is used for detecting gasbag inner chamber gas pressure on the gasbag. The binding belt tensioning dynamometer can accurately detect the tensioning force value of the binding belt, so that the binding belt is tightened to a proper tensioning force value, and safety guarantee is provided for the transportation of goods.

Description

Binding belt tensioning dynamometer

Technical Field

The invention belongs to the technical field of logistics binding equipment, and relates to a binding belt tensioning dynamometer.

Background

The goods need rely on the strainer to bind the goods in order to prevent that the goods from removing at will in the transportation to promote the security of transportation. The tensioner generally includes a strap and a retracting mechanism for retracting the strap to effect binding. However, in the process of tightening the binding band of the conventional tensioner, the magnitude of the tension force of the binding band cannot be known, and the conventional tensioner can only feel the magnitude of the operating force of the handle on the winding mechanism to guess whether the binding band is tensioned or not, or can feel whether the binding band is tensioned or not by pulling the binding band to the side part. This mode of operation only relies on experience approximate estimation to tie and takes the tension force whether suitable, and the actual tension force value to tie is unable to learn, consequently can appear often that the tension force value is great in the actual operation in-process and lead to crushing the goods, or the tension force value is not enough leads to the goods to rock, influences the problem of transportation safety.

In order to solve the technical problem, tensioning force measuring instruments for detecting the tensioning force value of the binding belt appear on the market, and at present, the conventional structures of the binding belt tensioning force measuring instruments have two types:

1. electronic detection: the pressure sensor is arranged on the dynamometer, so that the pressure acting on the pressure sensor is detected when the binding belt is in a tensioning state, and the tensioning force of the binding belt is reversely pushed out. For example, a tension force measuring instrument (application No. 201910576648.6; publication No. CN110296782A) disclosed in chinese patent document includes a seat body, in which a through groove is provided for a binding band to be inserted, a pressing member with a pressure sensing element is provided on one side wall of the through groove, the pressing member is connected to the seat body through a screw thread and can press against the side wall of the other side of the through groove, and a portion of the other side wall of the through groove corresponding to the pressing member is recessed inward. When the binding belt is in a tension state, the tension dynamometer enables the binding belt to be bent by pressing the binding belt with the pressing component, and then the tension dynamometer reversely deduces the tension force of the binding belt by detecting the reaction force applied to the pressing component by the binding belt through the pressure sensing element.

2. Mechanical detection: the mode compresses the spring through the binding belt tightening process, and then reversely deduces the magnitude of the tensioning force of the binding belt according to the compression amount of the spring. For example, a tensioner dynamometer (application number: 200610154440.8; publication number: CN1967182A) disclosed in chinese patent document, which drives a gland to rotate around a fixed shaft when a binding band is tightened, thereby pressing a spring down, and then indicates a tension value of the binding band by an indicator pin coupled to the gland; further, as disclosed in the Chinese patent document, a mechanical tape tension tester (application No. 201220281872.6; No. CN202757720U) is also disclosed, which compresses spring steel during tightening of the binding tape, and finally reads the tension value of the binding tape by means of an indicator. The mechanical tension dynamometer does not need power supply, and does not need corresponding electronic detection elements, control modules and the like, so that the part cost and the manufacturing cost of the tension dynamometer can be greatly reduced, and the mechanical tension dynamometer becomes a commonly adopted tension dynamometer at present.

Disclosure of Invention

The invention aims to provide a binding belt tension dynamometer for detecting a binding belt tension value, which has a novel structure and aims to solve the problems in the prior art.

The purpose of the invention can be realized by the following technical scheme: the utility model provides a bind and take tight dynamometer that rises, includes the bracket, its characterized in that, be equipped with the gasbag on the bracket and the bracket can support the gasbag, lie in the gasbag both sides on the bracket and still be equipped with respectively and press the area part, every presses and all has the clearance that supplies to bind and take to pass between area part and the gasbag, the gasbag pushes up the top splenium that presses on binding and taking when being in the inflation state of air bag is higher than every and presses the area of pressing that the area part pressed on binding and taking, be connected with the atmospheric pressure detecting element that is used for detecting gasbag inner chamber gas pressure on the gasbag.

The binding belt tension dynamometer is provided with a gap for the binding belt to pass through between each belt pressing component and the air bag, when in detection, the binding belt firstly penetrates through the gap on one side of the air bag, bypasses the top of the air bag and then penetrates out from the gap on the other side of the air bag, and because the jacking part of the air bag jacking on the binding belt is higher than the pressing belt part of each belt pressing component pressing on the binding belt when the air bag is in an inflated state, a section of the binding belt corresponding to the air bag is supported by the air bag and arched relative to the part in contact with the belt pressing components. In the process of tightening the binding belt, the binding belt tends to be straightened as the binding belt is tightened, the binding belt generates pressure to act on the air bag to compress the air bag, and the larger the tension force of the binding belt is, the larger the pressure action on the air bag is, the larger the compression amount of the air bag is, and the higher the air pressure in the air bag cavity is. At this time, the tightening force value of the binding band can be reversely deduced according to the value detected by the air pressure detecting element connected to the air bag.

In the binding band tension dynamometer, the air bag comprises a cylindrical air bag main body, and the belt pressing component is in a long strip shape and is parallel to the axis direction of the air bag. Cylindric gasbag main part can carry out good contact and have great area of contact with the binding area, and press the area part to be rectangular form and parallel with gasbag axis direction for the width direction can not take place the distortion in the tensioning in-process of binding area, makes the binding area exert pressure effectively to the gasbag when rising, guarantees that the dynamometer that rises and tightly has higher detection precision.

In the binding band tension dynamometer, the air bag is provided with two air nozzles, and the air pressure detection element is detachably connected with one of the air nozzles. The air pressure detection device is characterized in that two air faucets are arranged, one air faucet is connected with the air pressure detection element, and the other air faucet can be used as an inflated air faucet, so that the air pressure detection element is not required to be detached in the inflating process, the air pressure change state of the air bag can be detected at any time in the inflating process, and the air bag is convenient to inflate to a preset initial air pressure value. Under the condition that the initial air pressure value of the air bag is fixed, the tension value of the binding belt can be deduced according to the detected air pressure value after the air bag is compressed.

In the binding band tension dynamometer, the air pressure detection element is arranged in an inner cavity of the air bag. When the air pressure detection element is arranged in the inner cavity of the air bag, the air pressure detection element is usually attached to the inner wall of the air bag, the air pressure detection element is directly integrated in the air bag through the structure, the structure is compact, the air bag protects the air pressure detection element, and the phenomenon that the air pressure detection element is blown by wind and rain in the vehicle-mounted transportation process to cause the detection precision and the service life of the air pressure detection element to be shortened can be avoided.

In the binding belt tension dynamometer, the bracket comprises a support plate and two side plates which are oppositely arranged, the support plate is connected between the two side plates, the middle part of the support plate is downwards sunken, an inwards concave arc-shaped surface is formed on the top surface of the middle part of the support plate, and the arc-shaped surface is positioned below the air bag and is matched with the surface shape of the bottom of the air bag. By arranging the two side plates, after the binding belt penetrates into the bracket, the two side plates can limit the deviation of the binding belt in the width direction, so that the binding belt can effectively act on the air bag in the tensioning process, and the detection precision is ensured. Through the arcwall face of forming the indent in the backup pad, this arcwall face and gasbag bottom surface shape looks adaptation, such structure can promote the support effect to the gasbag, and then guarantees to tie and take the better compression gasbag of area, guarantees the precision that detects.

In foretell binding area rises and tightly surveys dynamometer, press the number that the area part is support bar and support bar to be two, two support bars are located the both sides of gasbag respectively, the both ends of backup pad are connected respectively on two blocks of curb plates, the both sides limit of backup pad is located the inboard of two support bars respectively, all forms the foraminiferous hole between every support bar and the adjacent backup pad side. The structure enables the two sides of the air bag to be provided with the perforating holes, when the air bag is connected with the tension dynamometer, the air bag only needs to penetrate through one perforating hole and penetrate out of the other perforating hole after bypassing the top of the air bag, and the operation is very convenient. Preferably, the two side edges of the supporting plate are parallel to the supporting bars, and the perforating holes are strip-shaped holes.

In the binding band tension dynamometer, the belt pressing components are two rollers, the two rollers are respectively arranged at two sides of the air bag, two ends of each roller are respectively and rotatably connected to the two side plates, two side edges of the supporting plate are respectively positioned at the inner sides of the two rollers, and a belt penetrating hole is formed between each roller and the side edge of the adjacent supporting plate. The structure ensures that the rolling shaft can roll in the tightening process of the binding belt, avoids the phenomenon of abrasion caused by sliding friction between the binding belt and the bracket, and protects the binding belt.

In the binding belt tension dynamometer, the two side plates are arranged in parallel, two ends of each supporting strip are respectively connected with the two side plates, and the bracket is integrally formed. The two ends of the supporting bar are connected with the two side plates, so that the supporting bar is high in strength and not easy to deform or break. The bracket is preferably made of die casting, and the integral molding of the bracket ensures higher strength, so that the bracket can bear larger pulling force of the binding belt and is not easy to deform or break,

in foretell bundling belt rises and tightly surveys measurement appearance, the gasbag still includes two cylindric installations departments of connecting respectively on the both ends terminal surface of gasbag main part, the installation department has the hole with gasbag main part inner chamber intercommunication, and two air cocks are sealing connection respectively in the inner hole of two installations departments. Through shaping out the installation department on the gasbag, the air cock installation of being convenient for, cylindric installation department can form great sealing area with between the air cock simultaneously, has guaranteed that the gasbag has higher sealing performance, promotes the precision that detects.

In foretell binding area rises and tightly rises dynamometer, it is just right to set up to offer the air cock via hole on air cock via hole and two blocks of curb plates respectively on two blocks of curb plates, two air cocks of gasbag are worn out respectively from the air cock via hole on two blocks of curb plates, two of gasbag the cover is equipped with the ferrule of tightly hooping the installation department on corresponding air cock outer wall on the installation department periphery wall respectively, the ferrule is located the air cock is crossed downtheholely. Through set up the air cock via hole on the curb plate, all wear out the curb plate outside through two air cocks of gasbag for gasbag simple to operate reduces manufacturing cost. Meanwhile, the design can also facilitate the installation of the air pressure detection element, so that the detection process is convenient, and the air bag is convenient to inflate and deflate.

In the binding belt tensioning dynamometer, the aperture of the air tap through hole in the height direction of the side plate is larger than the diameter of the pipe hoop, and the pipe hoop can move up and down in the air tap through hole. While the air bag is compressed by the binding band, the air bag is supported by the support plate, but the air tap of the air bag moves downward while the air bag is compressed and deformed. If the air tap through hole is circular and is completely matched with the size of the air tap, part of the acting force applied to the air bag by the binding belt is converted into the acting force for driving the connection part of the air bag and the air tap to deform, and the detection precision is easily influenced. Therefore, the design that the pipe hoop can reciprocate in the air cock via hole is adopted to the present case for the gasbag is convenient for the air cock at compression deformation's in-process and is carried out the downstream, thereby will tie the pressure that applies for the gasbag and effectually convert the compression capacity of gasbag into with tying, guarantee the precision that detects. Moreover, this design still makes the gasbag at compression deformation's in-process, and the air cock can not tightly contradict on the bracket, consequently can also form the protection to air cock and the junction of gasbag main part, avoids appearing the condition of gas leakage.

In the binding belt tension dynamometer, an external thread is formed on the outer peripheral wall of the outer end of the air faucet, the air pressure detection element is in threaded connection with the outer end of the air faucet, a locking nut is further in threaded connection with the outer end of the air faucet connected with the air pressure detection element, and the locking nut is located on the inner side of the air pressure detection element. Such design does benefit to the installation of atmospheric pressure detecting element and guarantees the stability of installation simultaneously, and is concrete, when carrying out the installation of atmospheric pressure detecting element, on screwing lock nut to the air cock earlier, later, atmospheric pressure detecting element aims at the air cock earlier, and the alignment screw thread then on the screw in air cock, the case of atmospheric pressure detecting element screw in-process air cock is backed up, and atmospheric pressure detecting element just can detect the pressure of gasbag inner chamber this moment. The air pressure detecting element connected with the air tap is the prior art, and can adopt a tire pressure monitor which is widely used for detecting the tire pressure of an automobile. For example, the Chinese patent document discloses an "external tire pressure monitoring transmitter" (application number: 200520063014.4; grant publication number: CN 2826556Y).

In the binding belt tension dynamometer, the binding belt tension dynamometer further comprises a receiver with a display screen, the receiver comprises a control chip and a wireless receiving unit connected with the control chip, the display screen is connected with the output end of the control chip, the air pressure detection element comprises a signal processing unit, a wireless transmitting unit and an air pressure sensor, the air pressure sensor is connected with the input end of the signal processing unit, the wireless transmitting unit is connected with the output end of the signal processing unit, and the wireless transmitting unit is in wireless communication connection with the wireless receiving unit. The wireless transmitting unit and the wireless receiving unit are existing modules. The pressure detection element detects and transmits a detected gas pressure signal to the signal processing unit, the signal processing unit performs analog-to-digital conversion on the received signal, the converted signal is transmitted to the wireless receiving unit of the receiver through the wireless transmitting unit, the control chip obtains a pressure value according to the received pressure detection signal, a tension force value of the binding belt is obtained through calculation, and then the display screen is controlled to display the tension force. Through the design, real-time binding monitoring is realized, and a driver can know the binding state in a cab.

Compared with the prior art, the binding belt tension dynamometer has the following advantages:

1. the tension dynamometer adopts the air bag, and is connected to the air tap of the air bag through the external air pressure detection element, so that the tension value corresponding to the binding belt can be detected, and therefore, when a plurality of binding belts on the freight car bind cargos, the tension dynamometer on each binding belt does not need to be integrated with the air pressure detection element, and can detect each binding belt in sequence only through one external air pressure detection element, and the use cost is greatly reduced.

2. The tension dynamometer adopts a plug-and-play design of the air pressure detection element, so that the tension dynamometer can be used as a device for temporarily checking whether the tension value of the binding belt reaches the standard by a supervision department, and online information is provided for supervision of enterprises and traffic supervision departments.

3. But this tight dynamometer that rises through setting up wireless connection's receiver, has realized binding monitoring real-time, lets the driver know the state of binding in the driver's cabin, and then effectively avoids binding the transportation risk that the unusual pine of area brought.

Drawings

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

Fig. 2 is a bottom view of the first embodiment of the present invention.

Fig. 3 is a cross-sectional view a-a of fig. 2.

Fig. 4 is an exploded view of a first embodiment of the present invention.

Fig. 5 is a schematic perspective view of a bottom surface of a bracket according to an embodiment of the invention.

Fig. 6 is a side view of a first embodiment of the invention.

Fig. 7 is a schematic view of a usage status of the first embodiment of the present invention.

Fig. 8 is a sectional view showing a state of use of the first embodiment of the present invention.

Fig. 9 is a circuit connection block diagram according to the first embodiment of the invention.

Fig. 10 is a schematic perspective view of a second embodiment of the present invention.

Fig. 11 is a sectional view of a third embodiment of the present invention.

In the figure, 1, a bracket; 11. a supporting strip; 111. a belt pressing portion; 12. a side plate; 13. a support plate; 131. an arc-shaped surface; 14. a roller; 2. an air bag; 21. an airbag main body; 211. a jacking portion; 22. an installation part; 221. an inner bore; 23. an air tap; 24. a pipe hoop; 25. an air nozzle cap; 3. a binding band; 4. an air pressure detecting element; 41. a signal processing unit; 42. a wireless transmitting unit; 43. an air pressure sensor; 5. a hole is perforated; 6. the air tap is provided with a through hole; 7. locking the nut; 8. a receiver; 81. a display screen; 82. a control chip; 83. a wireless receiving unit; 9. and (6) positioning a label.

Detailed Description

The following are specific embodiments of the present invention and are further described with reference to the drawings, but the present invention is not limited to these embodiments.

Example one

As shown in fig. 1 and 2, the binding band tension dynamometer includes a bracket 1, an airbag 2 is disposed on the bracket 1, the bracket 1 can support the airbag 2, belt pressing members 11 are further disposed on the bracket 1 and located on two sides of the airbag 2, a gap through which the binding band 3 passes is formed between each belt pressing member 11 and the airbag 2, when the airbag 2 is in an inflated state, a pressing portion 211 of the airbag 2 pressing against the binding band 3 is higher than a pressing portion 111 of each belt pressing member 11 pressing against the binding band 3, and an air pressure detecting element 4 for detecting air pressure in an inner cavity of the airbag 2 is connected to the airbag 2.

Specifically, as shown in fig. 3 and 4, the airbag 2 has two air nozzles 23, the air pressure detecting element 4 is detachably connected to one of the air nozzles 23, and an air nozzle cap 25 is connected to the other air nozzle 23 to ensure sealing performance. The airbag 2 includes a cylindrical airbag main body 21 and two cylindrical mounting portions 22 respectively connected to end faces of both ends of the airbag main body 21, the mounting portions 22 have inner holes 221 communicating with an inner cavity of the airbag main body 21, and two air nozzles 23 are respectively connected in the inner holes 221 of the two mounting portions 22 in a sealing manner. Through shaping installation department 22 on gasbag 2, the air cock 23 of being convenient for is installed, and cylindric installation department 22 can form great sealing area with air cock 23 simultaneously, has guaranteed that gasbag 2 has higher sealing performance. The air nozzle 23 is a conventional air nozzle, and thus the specific structure of the internal components of the air nozzle 23 is not shown in fig. 3. The air tap 23 of present case can adopt the air tap 23 of passenger car tire, has the gas core in the air tap 23, and under the normality, the gas core can seal air tap 23.

As shown in fig. 4 and 5, in order to facilitate the installation of the air pressure detecting element 4, an external thread is formed on the outer circumferential wall of the outer end of the air faucet 23, the air pressure detecting element 4 is in threaded connection with the outer end of the air faucet 23, a locking nut 7 is further in threaded connection with the outer end of the air faucet 23 connected to the air pressure detecting element 4, and the locking nut 7 is located inside the air pressure detecting element 4. When the air pressure detecting element 4 is installed, the locking nut 7 is screwed on the air faucet 23, then the air pressure detecting element 4 is aligned with the air faucet 23, the thread is found, then the air faucet 23 is screwed in, an air core in the air faucet 23 is pushed open in the process that the air pressure detecting element 4 is screwed in the air faucet 23, and the air pressure detecting element 4 can detect the pressure of the inner cavity of the air bag 2. The air pressure detecting element 4 connected to the air faucet 23 is a conventional one, and may be a tire pressure monitor widely used for detecting the tire pressure of an automobile. As disclosed in the chinese patent literature, an "external tire pressure monitoring transmitter" application number: 200520063014.4, respectively; authorization notice number: CN 2826556Y.

Referring to fig. 4, 5 and 6, the bracket 1 includes a supporting plate 13, two side plates 12 disposed oppositely, two side plates 12 are disposed in parallel, the axial direction of the airbag 2 is perpendicular to the side plates 12, the press belt 11 is a strip-shaped supporting bar 11, the number of the supporting bar 11 is two, the two supporting bars 11 are respectively located on two sides of the airbag 2 and are parallel to the axial direction of the airbag 2, two ends of each supporting bar 11 are respectively connected to the two side plates 12, two ends of the supporting plate 13 are respectively connected to the two side plates 12, the middle of the supporting plate 13 is recessed downwards and forms an inward-concave arc-shaped surface 131 on the top surface of the middle of the supporting plate 13, the arc-shaped surface 131 is located below the airbag 2 and is matched with the bottom surface of the airbag 2 in shape, so as to improve the supporting effect on the airbag 2, thereby ensuring that the binding belt 3. The two side edges of the supporting plate 13 are respectively positioned at the inner sides of the two supporting bars 11, the side edges of the supporting plate 13 are parallel to the supporting bars 11, and a strip-shaped perforating hole 5 is formed between each supporting bar 11 and the side edge of the adjacent supporting plate 13. When the airbag 2 is connected with the tension dynamometer, the airbag 2 only needs to penetrate through one of the perforating hole 5 and pass through the other perforating hole 5 after bypassing the top of the airbag 2, and the operation is very convenient.

In order to realize the installation of the airbag 2, as shown in fig. 5 and 6, air tap via holes 6 are respectively formed in two side plates 12, and the air tap via holes 6 on the two side plates 12 are right opposite to each other, two air taps 23 of the airbag 2 respectively penetrate through the air tap via holes 6 on the two side plates 12, a pipe clamp 24 for tightly clamping the installation part 22 on the outer wall of the corresponding air tap 23 is respectively sleeved on the outer peripheral wall of two installation parts 22 of the airbag 2, the pipe clamp 24 is located in the air tap via holes 6, in the binding band tensioning dynamometer, the aperture of the air tap via holes 6 in the height direction of the side plates 12 is larger than the diameter of the pipe clamp 24, and the pipe clamp 24 can move up and. While the bag 2 is supported by the support plate 13 during the compression of the bag 2 by the binding band 3, the air tap 23 of the bag 2 moves downward while the bag 2 is compressed and deformed. The present case adopts the design that pipe strap 24 can reciprocate in air cock via hole 6 for gasbag 2 is convenient for air cock 23 at compression deformation's in-process and is removed downwards, thereby will tie the effectual compressive capacity that converts gasbag 2 into of the pressure that applies gasbag 2 for 3, guarantees the precision that detects. Moreover, the design also ensures that the air nozzle 23 can not tightly abut against the bracket 1 in the process of compression deformation of the air bag 2, so that the air nozzle 23 and the joint of the air nozzle 23 and the air bag main body 21 can be protected, and the air leakage is avoided.

As shown in fig. 7 and 9, the binding band tension load cell further includes a receiver 8 having a display screen 81, the receiver 8 includes a control chip 82 and a wireless receiving unit 83 connected to the control chip 82, the display screen 81 is connected to an output end of the control chip 82, the air pressure detecting element 4 includes a signal processing unit 41, a wireless transmitting unit 42 and an air pressure sensor 43, the air pressure sensor 43 is connected to an input end of the signal processing unit 41, the wireless transmitting unit 42 is connected to an output end of the signal processing unit 41, and the wireless transmitting unit 42 is in wireless communication with the wireless receiving unit 83. The wireless transmitting unit 42 and the wireless receiving unit 83 are existing modules. The air pressure sensor 43 preferably adopts a MEMS sensor, which has the advantages of small layout, accurate measurement, and low power consumption.

The use method and the working principle of the binding band tensioning dynamometer are described as follows:

as shown in fig. 7 and 8, the air pressure detecting element 4 is mounted on one of the air nozzles 23, and the air nozzle cap 25 on the other air nozzle 23 is removed to inflate the air bag 2, so that the air bag 2 is inflated to the preset initial air pressure value. If the airbag 2 is already in an inflated state, the air pressure detecting element 4 may be directly mounted. Thereafter, the airbag 2 is threaded through one of the perforation holes 5, passes around the top of the airbag 2, and then is threaded through the other perforation hole 5, and at this time, the tying band 3 is supported by the airbag 2 corresponding to a length of the airbag 2 and arched with respect to a portion in contact with the stay 11. As can be seen from fig. 8, when the airbag 2 is inflated, the airbag 2 presses the pressing portion 211 of the binding band 3, that is, the position of the distal end surface of the airbag 2, and the belt pressing member 11 presses the position of the bottom surface of the belt pressing portion 111 of the binding band 3, that is, the position of the belt pressing member 11. After the binding belt 3 passes through the connection, a positioning label 9 can be sewn on the binding belt 3 to fix the position of the bracket 1, the bracket 1 is usually selected to be close to the position of a connecting hook at the end part of the binding belt 3, the position of the connecting hook is moderate from the ground, the operation and the observation are convenient, and meanwhile, product parameters, production time, product information and the like can be printed on the positioning label 9.

In the tightening process of the binding belt 3, the binding belt 3 tends to be straightened more and more tightly along with the pulling of the binding belt 3, at the moment, the binding belt 3 can generate pressure to act on the air bag 2 to compress the air bag 2, and when the tightening force of the binding belt 3 is larger, the larger the pressure action generated on the air bag 2 is, the larger the compression amount of the air bag 2 is, so that the air pressure in the inner cavity of the air bag 2 is higher, and the tightening force value of the binding belt 3 can be deduced and converted according to the air pressure value in the inner cavity of the air bag 2. When the binding belt 3 tightens and compresses the airbag 2, the air pressure detecting element 4 detects and transmits the detected air pressure signal to the signal processing unit 41, the signal processing unit 41 performs analog-to-digital conversion on the received signal, and transmits the converted signal to the wireless receiving unit 83 of the receiver 8 through the wireless transmitting unit 42, the control chip 82 obtains an air pressure value according to the received air pressure detection signal, a tension force value of the binding belt 3 is obtained through calculation, and then the display screen 81 is controlled to display the tension force.

Example two

The structure and principle of this embodiment are basically the same as those of the first embodiment, and different points are as follows: as shown in fig. 10, the belt pressing member 11 is a roller 14, the number of the rollers 14 is two, the two rollers 14 are respectively disposed at two sides of the airbag 2, and two ends of the roller 14 are respectively rotatably connected to the two side plates 12. The structure enables the rolling shaft 14 to roll when the binding belt 3 is tightened, thereby avoiding the phenomenon that the binding belt 3 is worn due to sliding friction with the bracket 1 and protecting the binding belt 3.

EXAMPLE III

The structure and principle of this embodiment are basically the same as those of the first embodiment, and different points are as follows: as shown in fig. 11, the air pressure detecting element 4 is disposed in the inner cavity of the airbag 2 and attached to the inner wall of the inner cavity.

The specific embodiments described herein are merely illustrative of the spirit of the invention. Various modifications or additions may be made to the described embodiments or alternatives may be employed by those skilled in the art without departing from the spirit or ambit of the invention as defined in the appended claims.

Although 1, the bracket is used more herein; 11. a supporting strip; 111. a belt pressing portion; 12. a side plate; 13. a support plate; 131. an arc-shaped surface; 14. a roller; 2. an air bag; 21. an airbag main body; 211. a jacking portion; 22. an installation part; 221. an inner bore; 23. an air tap; 24. a pipe hoop; 25. an air nozzle cap; 3. a binding band; 4. an air pressure detecting element; 41. a signal processing unit; 42. a wireless transmitting unit; 43. an air pressure sensor; 5. a hole is perforated; 6. the air tap is provided with a through hole; 7. locking the nut; 8. a receiver; 81. a display screen; 82. a control chip; 83. a wireless receiving unit; 9. positioning labels, etc., but does not exclude the possibility of using other terms. These terms are used merely to more conveniently describe and explain the nature of the present invention; they are to be construed as being without limitation to any additional limitations that may be imposed by the spirit of the present invention.

Claims

1. The utility model provides a binding belt tension dynamometer, includes bracket (1), its characterized in that, be equipped with gasbag (2) and bracket (1) on bracket (1) and can support gasbag (2), it still is equipped with respectively to press area part (11) to lie in gasbag (2) both sides on bracket (1), all has the clearance that supplies binding belt (3) to pass between every press area part (11) and gasbag (2), top splenium (211) that gasbag (2) roof pressure was located binding belt (3) is higher than every press area part (11) and exert pressure area (111) on binding belt (3) when gasbag (2) were in the inflation state, be connected with atmospheric pressure detecting element (4) that are used for detecting gasbag (2) inner chamber gas pressure on gasbag (2).

2. The strap-tensioning load cell according to claim 1, wherein the airbag (2) comprises an airbag body (21) having a cylindrical shape, and the strap member (11) has an elongated shape and is parallel to an axial direction of the airbag (2).

3. The strap-tensioning force gauge according to claim 2, wherein the air bag (2) has two air taps (23), and the air pressure detecting element (4) is detachably connected to one of the air taps (23).

4. The strap-tensioning force gauge according to claim 1, wherein the air pressure detecting element (4) is disposed in an inner cavity of the air bag (2).

5. The strap tensioning load cell according to claim 3, wherein the bracket (1) comprises a support plate (13) and two oppositely arranged side plates (12), the support plate (13) is connected between the two side plates (12), the middle part of the support plate (13) is recessed downwards and forms a concave arc-shaped surface (131) on the top surface of the middle part of the support plate (13), and the arc-shaped surface (131) is positioned below the air bag (2) and is matched with the shape of the bottom surface of the air bag (2).

6. The binding band tension dynamometer according to claim 5, wherein the belt pressing part (11) is a support bar (11) and the number of the support bar (11) is two, the two support bars (11) are respectively located at two sides of the airbag (2), two ends of the support plate (13) are respectively connected to two side plates (12), two side edges of the support plate (13) are respectively located at inner sides of the two support bars (11), and a belt passing hole (5) is formed between each support bar (11) and the side edge of the adjacent support plate (13).

7. The binding band tension dynamometer according to claim 5, wherein the belt pressing member (11) is a roller (14) and the number of the rollers (14) is two, the two rollers (11) are respectively disposed on two sides of the airbag (2), two ends of the roller (14) are respectively rotatably connected to the two side plates (12), two sides of the supporting plate (13) are respectively located on inner sides of the two rollers (14), and a belt passing hole (5) is formed between each roller (14) and an adjacent side of the supporting plate (13).

8. The binding band tension dynamometer according to claim 5 or 6, wherein the two side plates (12) are arranged in parallel, both ends of each supporting bar (11) are respectively connected with the two side plates (12), and the bracket (1) is integrally formed.

9. The strap tensioning dynamometer according to claim 5 or 6, wherein the airbag (2) further comprises two cylindrical mounting portions (22) respectively connected to end faces of two ends of the airbag main body (21), the mounting portions (22) have inner holes (221) communicated with an inner cavity of the airbag main body (21), and two air nozzles (23) are respectively and hermetically connected in the inner holes (221) of the two mounting portions (22).

10. The binding belt tension dynamometer according to claim 9, wherein the two side plates (12) are respectively provided with air tap through holes (6) and the air tap through holes (6) on the two side plates (12) are opposite to each other, the two air taps (23) of the airbag (2) respectively penetrate through the air tap through holes (6) on the two side plates (12), the peripheral walls of the mounting portion (22) of the airbag (2) are respectively sleeved with pipe hoops (24) for tightly hooping the mounting portion (22) on the outer wall of the corresponding air tap (23), and the pipe hoops (24) are located in the air tap through holes (6).

11. The strap tensioning force gauge according to claim 10, wherein the aperture of the air tap through hole (6) in the height direction of the side plate (12) is larger than the diameter of the pipe clamp (24), and the pipe clamp (24) can move up and down in the air tap through hole (6).

12. The binding band tension force measuring instrument according to any one of claims 3, 5 or 6, wherein an outer peripheral wall of an outer end of the air faucet (23) is provided with an external thread, the air pressure detecting element (4) is in threaded connection with the outer end of the air faucet (23), the outer end of the air faucet (23) connected with the air pressure detecting element (4) is further in threaded connection with a locking nut (7), and the locking nut (7) is located on the inner side of the air pressure detecting element (4).

13. The binding band tension dynamometer according to any one of claims 1 to 6, further comprising a receiver (8) having a display screen (81), wherein the receiver (8) comprises a control chip (82) and a wireless receiving unit (83) connected with the control chip (82), the display screen (81) is connected with an output end of the control chip (82), the air pressure detecting element (4) comprises a signal processing unit (41), a wireless transmitting unit (42) and an air pressure sensor (43), the air pressure sensor (43) is connected with an input end of the signal processing unit (41), the wireless transmitting unit (42) is connected with an output end of the signal processing unit (41), and the wireless transmitting unit (42) is in wireless communication connection with the wireless receiving unit (83).