A stretch resistant conveyor belt

Abstract

The application belongs to the technical field of conveying belts, and particularly relates to a length-tolerant conveying belt which comprises a conveying belt body made of polyester and a pair of conveying shafts. The conveying shafts are attached to the inner walls of the conveying belt body. The bottom surface and the top surface of the conveying belt body are both provided with aligned connecting holes, and the connecting holes are connected with connecting shells. When the conveying belt body is driven by the conveying shafts to move, laser signals can be emitted by the laser emission module. When the pair of connecting shells are aligned, the laser receiving module receives the laser signals emitted by the laser emission module. Then, the information analysis module calculates the distance between the upper side and the lower side of the conveying belt body according to the receiving time. If the distance is lower than a certain value, it means that the conveying belt body is excessively stretched. At this time, the alarm emits sound to alarm, so as to remind the staff to timely adjust the tension of the conveying shafts, thereby improving the length-tolerant performance and service life of the conveying belt body.

Description

Technical Field

[0001] This invention belongs to the field of conveyor belt technology, specifically a tensile-resistant conveyor belt. Background Technology

[0002] A conveyor belt is a device used to transport materials. There are many types of conveyor belts, and conveyor belts made of different materials have different effects. Among them is the polyester conveyor belt, which is a common type of conveyor belt. It is usually made of polyester fiber (PET). Polyester fiber has high tensile strength, so polyester conveyor belts usually have good tensile properties and are suitable for long-distance and high-load conveying tasks.

[0003] However, the above technologies often have the following drawbacks: conveyor belts need to be used in conjunction with components such as drive devices, conveyor shafts, idlers, and tensioning devices. When the goods carried on the conveyor belt are heavy, the conveyor belt will be subjected to tensile force during the transportation of materials. If the tension of the conveyor shaft is not properly adjusted, it may lead to excessive stretching of the conveyor belt, thereby affecting the performance and life of the conveyor belt. Therefore, the present invention provides a tensile-resistant conveyor belt. Summary of the Invention

[0004] In order to overcome the shortcomings of the prior art, at least one technical problem raised in the background art is solved.

[0005] The technical solution adopted by this invention to solve its technical problem is as follows: A tensile-resistant conveyor belt, comprising a conveyor belt body made of polyester and a pair of conveyor shafts; the conveyor shafts are fitted to the inner wall of the conveyor belt body, and aligned connecting holes are provided on the bottom and top surfaces of the conveyor belt body. Connecting shells are snapped into the connecting holes, and a lens is fixedly connected to one side of the pair of connecting shells that are close to each other. A laser emitting module is disposed in the upper connecting shell, and a laser receiving module, an information analysis module, and an alarm module are disposed in the lower connecting shell. This invention, by using polyester to make the conveyor belt body, gives the conveyor belt body tensile-resistant properties, and the lens... Used to protect the laser emitting module and laser receiving module, the laser beam passes through the lens. When the conveyor belt moves under the drive of the conveyor shaft, it can emit a laser signal with the help of the laser emitting module. Then, when a pair of connecting shells are aligned, the laser receiving module will receive the laser signal emitted by the laser emitting module. Then, the information analysis module will calculate the distance between the upper and lower sides of the conveyor belt based on the reception time. If the distance is lower than a certain value, it means that the conveyor belt is overstretched. At this time, the alarm will sound to remind the staff to adjust the tension of the conveyor shaft in time, thereby improving the tensile strength and service life of the conveyor belt.

[0006] Preferably, the conveyor belt body has a pair of rectangular grooves communicating with the connecting holes. A hollow connecting block is fixedly connected in the rectangular groove. A locking block is slidably connected to the side of the connecting block near the connecting shell. A pair of locking slots are provided on the side wall of the connecting shell to engage with the locking blocks. A driving mechanism is provided on the connecting shell to drive the locking blocks to move. Since the conveyor belt body vibrates during operation, if the connecting shell is fixed by the squeezing force of the connecting holes alone, the connecting shell may fall off. With the above mechanism, when the connecting shell is installed in the connecting hole, the driving mechanism drives the locking blocks to engage with the locking slots, thereby improving the stability of the connecting shell in the connecting hole. When it is necessary to remove the connecting shell, the driving mechanism drives the locking blocks to no longer engage with the locking slots, and then it can be removed normally from the connecting hole.

[0007] Preferably, the driving mechanism includes a pair of circular holes on the top surface of the connecting shell corresponding to the slots. A magnetic rod that magnetically attracts the card block is slidably connected to the inner wall of the circular holes. A first spring is fixedly connected between the side of the card block away from the connecting shell and the inner wall of the connecting block. A second spring is fixedly connected between the bottom surface of the magnetic rod and the inner wall of the circular holes. A connecting wire is fixedly connected to the top surface of the magnetic rod. When the connecting shell is placed into the connecting hole, rotating the connecting shell aligns the slot and the card block. The magnetic rod then aligns with the card block, attracting it and causing the card block to enter the slot and engage with it. When the card block needs to disengage from the slot, simply pull the connecting wire upwards, causing it to pull the magnetic rod upwards away from the card block. The card block will then reset and disengage from the slot under the pull of the first spring. Afterwards, the connecting wire can be pulled further to disengage the connecting shell from the connecting hole. This mechanism achieves rapid disassembly and installation of the connecting shell.

[0008] Preferably, the bottom surface of the connecting shell is provided with a pair of positioning grooves, and the inner wall of the circular hole is fixedly connected with a pair of positioning blocks. When the connecting shell is placed into the connecting hole, if its top end is aligned with the outer wall of the conveyor belt body, the bottom surface of the connecting shell will be blocked by the positioning blocks. At this time, the slot is aligned with the block. The connecting shell can be rotated, and a downward pressure is manually applied while rotating. When the positioning groove and the positioning block are aligned, the connecting shell will be pushed downward. At this time, the positions of the blocks are exactly corresponding. The above mechanism achieves the function of positioning the slot and the block, thereby improving the efficiency of installing the connecting shell.

[0009] Preferably, a set of symmetrical elastic blocks are fixedly connected to the inner sidewall of the conveyor belt body, and the connecting shell is located in the middle of the elastic blocks. When the conveyor shaft is used for a long time, if hard materials are accidentally left on the conveyor shaft, the connecting shell and the mirror will be damaged by the hard materials when the connecting shell passes the conveyor shaft. Through the above mechanism, when the connecting shell passes the conveyor shaft, the elastic blocks will push the conveyor belt body, so that the part of the conveyor belt body connected to the connecting shell protrudes. At this time, there is a certain gap between the connecting shell and the conveyor shaft, so as to achieve the effect of protecting the connecting shell.

[0010] Preferably, the elastic block has a hollow internal structure, and the elastic blocks are connected by a connecting pipe. An exhaust pipe is connected to the connecting pipe at the point where it is aligned with the connecting shell, and a nozzle is connected to the top of the exhaust pipe. Since dust accumulates on the lens after long-term use, this dust can hinder the emission and reception of laser beams. As the laser beam passes through the conveyor shaft, it is squeezed by the conveyor shaft. At this time, the gas inside the elastic block enters the exhaust pipe from the connecting pipe, and then the gas is sprayed onto the lens from the nozzle, thereby blowing away the impurities on the lens and improving the stability of laser beam emission and reception.

[0011] Preferably, the lens is made of transparent plastic, and a pair of elastic ropes are fixedly connected to the inner wall of the nozzle. The other end of the elastic ropes is fixedly connected to a ball that seals the nozzle. When the nozzle sprays air, it pushes the ball, which then impacts the lens, causing the lens to vibrate and thus removing impurities from the lens, improving the cleaning effect on the lens.

[0012] Preferably, the sidewall of the elastic block is rotatably connected to a set of rotating shafts; since the elastic block generates friction when passing through the conveyor shaft, the elastic block will be worn down to the point of being unusable over time. At this time, the rotating shafts allow the elastic block to pass through the conveyor shaft without contacting the conveyor shaft, thereby improving the service life of the elastic block.

[0013] Preferably, the connecting shell with the alarm module has a set of sound outlet holes on the side away from the lens. A sealing disc is rotatably connected to the side of the connecting shell near the sound outlet holes. The side wall of the sealing disc has a set of grooves corresponding to the sound outlet holes. The connecting shell is equipped with a rotating mechanism to drive the sealing disc to rotate. By using the sound outlet holes, the alarm sound can be better transmitted, thereby improving the alarm effect. When the alarm is not alarming, the sealing disc will seal the sound outlet holes to prevent dust and impurities from entering the connecting shell and affecting the laser receiving module, information analysis module, and alarm module. When the alarm is alarming, the rotating mechanism will drive the sealing disc to rotate, so that the grooves correspond to the sound outlet holes, and the sound can be transmitted normally from the sound outlet holes.

[0014] Preferably, the rotating mechanism includes a connecting rod fixedly connected to the side of the connecting shell near the sealing disc. The sealing disc is twisted to the connecting rod via a torsion spring. An electric telescopic rod is fixedly connected to the side of the connecting shell near the sealing disc. The alarm module activates the electric telescopic rod via a controller. When the sealing disc is sealing the sound outlet, the output end of the electric telescopic rod is stuck in the groove. When the alarm sounds, the output end of the electric telescopic rod is moved out of the groove. At this time, the sealing disc rotates under the action of the torsion spring, causing the groove to move to a position aligned with the sound outlet. The sound outlet can then be used normally. Through the above mechanism, when the alarm sounds, the sealing disc can be automatically moved to no longer seal the sound outlet.

[0015] The beneficial effects of this invention are as follows:

[0016] 1. When the conveyor belt body of the present invention moves under the drive of the conveyor shaft, it can emit a laser signal with the help of a laser emitting module. Then, when a pair of connecting shells are aligned, the laser receiving module will receive the laser signal emitted by the laser emitting module. Then, the information analysis module will calculate the distance between the upper and lower sides of the conveyor belt body according to the reception time. If the distance is lower than a certain value, it means that the conveyor belt body is overstretched. At this time, the alarm will sound to remind the staff to adjust the tension of the conveyor shaft in time, thereby improving the tensile strength and service life of the conveyor belt body.

[0017] 2. When the connecting shell is installed into the connecting hole, the present invention uses a driving mechanism to drive the locking block to engage with the locking slot, thereby improving the stability of the connecting shell in the connecting hole. When it is necessary to remove the connecting shell, the driving mechanism drives the locking block to disengage from the locking slot, and then it can be removed normally from the connecting hole. Attached Figure Description

[0018] The invention will now be further described with reference to the accompanying drawings.

[0019] Figure 1 This is a perspective view of the present invention;

[0020] Figure 2 This is a partial structural cross-sectional view of the conveyor belt body in this invention;

[0021] Figure 3 yes Figure 2 Enlarged view of point A;

[0022] Figure 4 yes Figure 2 Enlarged view of point B;

[0023] Figure 5 This is a schematic diagram of the structure of Embodiment 2 of the present invention.

[0024] In the diagram: 1. Conveyor belt body; 2. Conveyor shaft; 3. Connecting shell; 4. Lens; 5. Slot; 6. Locking block; 7. Connecting block; 8. First spring; 9. Magnetic rod; 10. Connecting wire; 11. Second spring; 12. Round hole; 13. Positioning slot; 14. Positioning block; 15. Elastic block; 16. Connecting pipe; 17. Exhaust pipe; 18. Nozzle; 19. Ball; 20. Elastic rope; 21. Rotating shaft; 22. Sound outlet; 23. Sealing disc; 24. Groove; 25. Connecting rod; 26. Electric telescopic rod. Detailed Implementation

[0025] To make the technical means, creative features, objectives and effects of this invention easier to understand, the invention will be further described below in conjunction with specific embodiments.

[0026] Example 1: As Figures 1 to 4 As shown in the embodiment of the present invention, a stretchable conveyor belt includes a conveyor belt body 1 made of polyester and a pair of conveyor shafts 2; the conveyor shafts 2 are fitted to the inner wall of the conveyor belt body 1, and the bottom and top surfaces of the conveyor belt body 1 are provided with aligned connecting holes, and connecting shells 3 are snapped into the connecting holes. A lens 4 is fixedly connected to one side of the pair of connecting shells 3 that are close to each other. A laser emitting module is provided in the upper connecting shell 3, and a laser receiving module, an information analysis module and an alarm module are provided in the lower connecting shell 3.

[0027] This invention uses a polyester-based conveyor belt body 1, giving it tensile strength. A lens 4 protects the laser emitting module and laser receiving module. The laser beam passes through the lens 4. When the conveyor belt body 1 moves under the drive of the conveyor shaft 2, it can emit a laser signal using the laser emitting module. When a pair of connecting shells 3 are aligned, the laser receiving module receives the laser signal emitted by the laser emitting module. The information analysis module then calculates the distance between the upper and lower sides of the conveyor belt body 1 based on the reception time. If the distance is below a certain value, it indicates that the conveyor belt body 1 is overstretched. An alarm will then sound to remind workers to adjust the tension of the conveyor shaft 2 in a timely manner, thereby improving the tensile strength and service life of the conveyor belt body 1.

[0028] The conveyor belt body 1 has a pair of rectangular slots communicating with the connecting holes. A hollow connecting block 7 is fixedly connected in the rectangular slots. A locking block 6 is slidably connected to the side of the connecting block 7 near the connecting shell 3. A pair of locking grooves 5 are opened on the side wall of the connecting shell 3 to engage with the locking block 6. A driving mechanism is provided on the connecting shell 3 to drive the locking block 6 to move. Since the conveyor belt body 1 vibrates during operation, if the connecting shell 3 is fixed by the squeezing force of the connecting hole alone, the connecting shell 3 may fall off. With the above mechanism, when the connecting shell 3 is installed in the connecting hole, the driving mechanism drives the locking block 6 to engage with the locking groove 5, thereby improving the stability of the connecting shell 3 in the connecting hole. When it is necessary to remove the connecting shell 3, the driving mechanism drives the locking block 6 to no longer engage with the locking groove 5, and then it can be removed normally from the connecting hole.

[0029] The driving mechanism includes a pair of circular holes 12 on the top surface of the connecting shell 3 corresponding to the slots 5. A magnetic rod 9, magnetically attracted to the block 6, is slidably connected to the inner wall of the circular holes 12. A first spring 8 is fixedly connected between the side of the block 6 away from the connecting shell 3 and the inner wall of the connecting block 7. A second spring 11 is fixedly connected between the bottom surface of the magnetic rod 9 and the inner wall of the circular holes 12. A connecting wire 10 is fixedly connected to the top surface of the magnetic rod 9. When the connecting shell 3 is placed into the connecting hole, rotating the connecting shell 3 causes the slots 5 and the block 6 to... When the positions are aligned, the magnetic rod 9 will align with the locking block 6, causing the magnetic rod 9 to attract the locking block 6. At this time, the locking block 6 will enter the locking slot 5 and engage with it. When it is necessary to disengage the locking block 6 from the locking slot 5, simply pull the connecting line 10 upwards to move the magnetic rod 9 upwards away from the locking block 6. Then, the locking block 6 will be reset and disengaged from the locking slot 5 under the pull of the first spring 8. After that, you can continue to pull the connecting line 10 to disengage the connecting shell 3 from the connecting hole. The above mechanism achieves the function of quickly disassembling and installing the connecting shell 3.

[0030] The bottom surface of the connecting shell 3 is provided with a pair of positioning grooves 13, and the inner wall of the circular hole 12 is fixedly connected with a pair of positioning blocks 14. When the connecting shell 3 is placed into the connecting hole, if its top end is aligned with the outer wall of the conveyor belt body 1, the bottom surface of the connecting shell 3 will be blocked by the positioning blocks 14. At this time, the slot 5 is aligned with the block 6. The connecting shell 3 can be rotated, and a downward pressure can be manually applied while rotating. When the positioning groove 13 and the positioning block 14 are aligned, the connecting shell 3 will be pushed downward. At this time, the positions of the block 6 and the block 6 are exactly corresponding. The above mechanism achieves the function of positioning the slot 5 and the block 6, so as to improve the efficiency of installing the connecting shell 3.

[0031] A set of symmetrical elastic blocks 15 are fixedly connected to the inner wall of the conveyor belt body 1, and the connecting shell 3 is located in the middle of the elastic blocks 15. If hard materials are accidentally left on the conveyor shaft 2 during long-term use, the connecting shell 3 and the lens 4 will be damaged by the hard materials when the connecting shell 3 passes the conveyor shaft 2. Through the above mechanism, when the connecting shell 3 passes the conveyor shaft 2, the elastic blocks 15 will push the conveyor belt body 1, so that the part of the conveyor belt body 1 connected to the connecting shell 3 will bulge. At this time, there is a certain gap between the connecting shell 3 and the conveyor shaft 2, so as to achieve the effect of protecting the connecting shell 3.

[0032] The elastic block 15 has a hollow internal structure, and a connecting pipe 16 connects the elastic blocks 15. An exhaust pipe 17 is connected to the connecting pipe 16 at the point where it is aligned with the connecting shell 3. A nozzle 18 is connected to the top of the exhaust pipe 17. Since dust accumulates on the lens 4 after long-term use, the dust can hinder the emission and reception of the laser. As the laser beam passes through the conveyor shaft 2, the elastic block 15 is squeezed by the conveyor shaft 2. At this time, the gas inside the elastic block 15 enters the exhaust pipe 17 through the connecting pipe 16, and then the gas is sprayed onto the lens 4 from the nozzle 18, thereby blowing away the impurities on the lens 4 and improving the stability of the laser beam emission and reception.

[0033] The lens 4 is made of transparent plastic. A pair of elastic ropes 20 are fixedly connected to the inner wall of the nozzle 18. The other end of the elastic ropes 20 is fixedly connected to a ball 19 that seals the nozzle 18. When the nozzle 18 sprays air, it pushes the ball 19. At this time, the ball 19 will impact the lens 4, causing the lens 4 to vibrate, thereby shaking off the impurities on the lens 4 and improving the cleaning effect of the lens 4.

[0034] The side wall of the elastic block 15 is rotatably connected to a set of rotating shafts 21. Since the elastic block 15 generates friction when passing through the conveyor shaft 2, the elastic block 15 will be worn down to the point of being unusable over time. At this time, the rotating shafts 21 allow the elastic block 15 to pass through the conveyor shaft 2 without contacting the conveyor shaft 2, thereby improving the service life of the elastic block 15.

[0035] Example 2: Figure 5As shown in the comparative embodiment one, another embodiment of the present invention is as follows: a set of sound outlet holes 22 are opened on the side of the connecting shell 3 where the alarm module is installed, away from the lens 4. A sealing disk 23 is rotatably connected to the side of the connecting shell 3 near the sound outlet holes 22. A set of grooves 24 corresponding to the sound outlet holes 22 are opened on the side wall of the sealing disk 23. A rotating mechanism is provided on the connecting shell 3 to drive the sealing disk 23 to rotate. By using the sound outlet holes 22, the alarm sound can be better transmitted, thereby improving the alarm effect of the alarm. When the alarm is not alarming, the sealing disk 23 will seal the sound outlet holes 22 to prevent dust and impurities from entering the connecting shell 3 and affecting the laser receiving module, information analysis module and alarm module. When the alarm is alarming, the rotating mechanism will drive the sealing disk 23 to rotate, so that the grooves 24 correspond to the sound outlet holes 22. At this time, the sound can be transmitted normally from the sound outlet holes 22.

[0036] The rotating mechanism includes a connecting rod 25 fixedly connected to the side of the connecting shell 3 near the sealing disc 23. The sealing disc 23 is twisted to the connecting rod 25 via a torsion spring. An electric telescopic rod 26 is fixedly connected to the side of the connecting shell 3 near the sealing disc 23. The alarm module activates the electric telescopic rod 26 via a controller. When the sealing disc 23 is sealing the sound outlet 22, the output end of the electric telescopic rod 26 is stuck in the groove 24. When the alarm sounds, the output end of the electric telescopic rod 26 is moved out of the groove 24. At this time, the sealing disc 23 rotates under the action of the torsion spring, causing the groove 24 to move to a position aligned with the sound outlet 22. At this time, the sound outlet 22 can be used normally. Through the above mechanism, when the alarm sounds, the sealing disc 23 can be automatically moved to no longer seal the sound outlet 22.

[0037] Working Principle: When the conveyor belt body 1 moves under the drive of the conveyor shaft 2, it can emit laser signals using a laser emitting module. When a pair of connecting shells 3 are aligned, the laser receiving module receives the laser signals emitted by the laser emitting module. The information analysis module then calculates the distance between the upper and lower sides of the conveyor belt body 1 based on the reception time. If the distance is lower than a certain value, it indicates that the conveyor belt body 1 is overstretched. At this time, an alarm will sound to remind the operator to adjust the tension of the conveyor shaft 2 in a timely manner, thereby improving the tensile strength and service life of the conveyor belt body 1. Since the conveyor belt body 1 vibrates during operation, if the connecting shells 3 are simply fixed by the squeezing force of the connecting holes, the connecting shells 3 may detach. The aforementioned mechanism allows the connecting shells 3 to be installed into the connecting holes, aided by the driving mechanism... The drive block 6 engages with the slot 5, thereby improving the stability of the connecting shell 3 within the connecting hole. When the connecting shell 3 needs to be removed, the drive mechanism drives the block 6 to disengage from the slot 5, allowing it to be removed normally from the connecting hole. When the connecting shell 3 is placed in the connecting hole, rotating the connecting shell 3 aligns the slot 5 with the block 6. At this time, the magnetic rod 9 aligns with the block 6, causing the magnetic rod 9 to attract the block 6. The block 6 then enters the slot 5 and engages with it. When the block 6 needs to disengage from the slot 5, simply pull the connecting line 10 upwards, causing the connecting line 10 to pull the magnetic rod 9 upwards away from the block 6. Then, the block 6 will reset and disengage from the slot 5 under the pull of the first spring 8. Afterwards, the connecting line 10 can be pulled further to disengage the connecting shell 3 from the connecting hole. The above mechanism achieves the function of quickly disassembling and installing the connecting shell 3.

[0038] When the connecting shell 3 is placed into the connecting hole, if its top end is aligned with the outer wall of the conveyor belt body 1, the bottom surface of the connecting shell 3 will be blocked by the positioning block 14. At this time, the slot 5 is aligned with the block 6. The connecting shell 3 can be rotated, and a downward pressure can be manually applied while rotating. When the positioning slot 13 is aligned with the positioning block 14, the connecting shell 3 will be pushed downward. At this time, the positions of the block 6 and the block 6 are exactly corresponding. The above mechanism achieves the function of positioning the slot 5 and the block 6, so as to improve the efficiency of installing the connecting shell 3.

[0039] If hard materials accumulate on the conveyor shaft 2 during prolonged use, the connecting shell 3 and the lens 4 may be damaged by these materials when the connecting shell 3 passes over the conveyor shaft 2. To address this, the aforementioned mechanism ensures that when the connecting shell 3 passes over the conveyor shaft 2, the elastic block 15 pushes the conveyor belt body 1, causing the section of the conveyor belt body 1 connected to the connecting shell 3 to bulge. This creates a gap between the connecting shell 3 and the conveyor shaft 2, thus protecting the connecting shell 3. Furthermore, dust accumulates on the lens 4 over time, which can hinder the removal of dust. The emission and reception of light are achieved through the aforementioned laser beam. When the elastic block 15 passes through the conveyor shaft 2, it is squeezed by the conveyor shaft 2. At this time, the gas inside the elastic block 15 enters the exhaust pipe 17 through the connecting pipe 16, and then the gas is sprayed from the nozzle 18 onto the lens 4, thereby blowing away the impurities on the lens 4 and improving the stability of laser beam emission and reception. When the nozzle 18 sprays gas, it pushes the sphere 19, which then impacts the lens 4, causing the lens 4 to vibrate and thus shaking off the impurities on the lens 4, improving the cleaning effect on the lens 4.

[0040] Because the elastic block 15 generates friction when passing through the conveyor shaft 2, it will wear down to the point of being unusable over time. In this case, the rotating shaft 21 can prevent the elastic block 15 from contacting the conveyor shaft 2 when passing through it, thereby improving the service life of the elastic block 15.

[0041] The terms "front," "back," "left," "right," "top," and "bottom" all refer to the figures in the accompanying drawings. Figure 1 Based on the perspective of the observer, the side of the device facing the observer is defined as the front, the left side of the observer is defined as the left, and so on.

[0042] In the description of this invention, it should be understood that the terms "center", "longitudinal", "lateral", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limiting the scope of protection of this invention.

[0043] The foregoing has shown and described the basic principles, main features, and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of the invention. Various changes and modifications can be made to the invention without departing from its spirit and scope, and all such changes and modifications fall within the scope of the present invention as claimed. The scope of protection of the present invention is defined by the appended claims and their equivalents.

Claims

1. A stretch-resistant conveyor belt, characterized by: It includes a conveyor belt body (1) made of polyester and a pair of conveyor shafts (2); the conveyor shafts (2) are attached to the inner wall of the conveyor belt body (1), and the bottom and top surfaces of the conveyor belt body (1) are provided with aligned connecting holes. Connecting shells (3) are snapped into the connecting holes. A lens (4) is fixedly connected to one side of the pair of connecting shells (3) that are close to each other. A laser emitting module is provided in the upper connecting shell (3), and a laser receiving module, an information analysis module and an alarm module are provided in the lower connecting shell (3). When a pair of connecting shells (3) are aligned, the laser receiving module will receive the laser signal emitted by the laser emitting module. The information analysis module will calculate the distance between the upper and lower sides of the conveyor belt body (1) based on the receiving time. When the distance is lower than a certain value, the alarm module will sound an alarm. The conveyor belt body (1) has a pair of rectangular grooves communicating with the connecting holes. A hollow connecting block (7) is fixedly connected in the rectangular groove. A locking block (6) is slidably connected to the side of the connecting block (7) near the connecting shell (3). A pair of locking grooves (5) are opened on the side wall of the connecting shell (3) to engage with the locking block (6). A driving mechanism for driving the locking block (6) to move is provided on the connecting shell (3). The driving mechanism includes a pair of circular holes (12) on the top surface of the connecting shell (3) corresponding to the slot (5). The inner wall of the circular holes (12) is slidably connected to a magnetic rod (9) that magnetically attracts the card block (6). A first spring (8) is fixedly connected between the side of the card block (6) away from the connecting shell (3) and the inner wall of the connecting block (7). A second spring (11) is fixedly connected between the bottom surface of the magnetic rod (9) and the inner wall of the circular holes (12). A connecting wire (10) is fixedly connected to the top surface of the magnetic rod (9). The inner wall of the conveyor belt body (1) is fixedly connected with a set of symmetrical elastic blocks (15), and the connecting shell (3) is located in the middle of the elastic blocks (15). The elastic block (15) has a hollow structure inside. A connecting pipe (16) is connected between the elastic blocks (15). An exhaust pipe (17) is connected at the alignment of the connecting pipe (16) and the connecting shell (3). A nozzle (18) is connected to the top of the exhaust pipe (17). The lens (4) is made of transparent plastic material. A pair of elastic ropes (20) are fixedly connected to the inner wall of the nozzle (18). The other end of the elastic ropes (20) is fixedly connected to a ball (19) that seals the nozzle (18). The connecting shell (3) with the alarm module installed has a set of sound holes (22) on the side away from the lens (4). The connecting shell (3) is rotatably connected to a sealing disc (23) on the side near the sound holes (22). The side wall of the sealing disc (23) has a set of grooves (24) corresponding to the sound holes (22). The connecting shell (3) is provided with a rotating mechanism to drive the sealing disc (23) to rotate.

2. A stretch-resistant conveyor belt according to claim 1, characterized in that: The bottom surface of the connecting shell (3) is provided with a pair of positioning grooves (13), and a pair of positioning blocks (14) are fixedly connected to the inner wall of the round hole (12).

3. A stretch-resistant conveyor belt according to claim 1, characterized in that: The sidewall of the elastic block (15) is rotatably connected to a set of rotating shafts (21).

4. A stretch-resistant conveyor belt according to claim 1, wherein: The rotating mechanism includes a connecting rod (25) fixedly connected to the side of the connecting shell (3) near the sealing disc (23). The sealing disc (23) is twisted to the connecting rod (25) by a torsion spring. An electric telescopic rod (26) is fixedly connected to the side of the connecting shell (3) near the sealing disc (23). The alarm module activates the electric telescopic rod (26) through the controller.

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