Traffic big data processing intelligent device

Abstract

The invention provides traffic big data processing intelligent equipment, and relates to the field of traffic engineering, and the equipment comprises a connection part, a protection part arranged at the bottom of the connection part, and an adjustment part and a pressurization part which are arranged at the top of the connection part. The connecting component comprises a base and a rectangular pipe embedded in the base, through cooperation of the connecting component, the protective component, the adjusting component and the pressurizing component, when the device is not used, the whole device is protected through the protective plate, when the device needs to be used, the gravity center of the whole device is lowered, and the device is convenient to use. The stability of the device is improved, the possibility of rollover caused by collision is reduced, meanwhile, the traffic light module is unfolded, the visibility of the traffic light module is improved, optimization of traffic flow and reduction of traffic accidents are facilitated, the interior of the device is pressurized through the pressurizing component, and the situation that the traffic light module is unfolded incompletely due to long-term use is prevented.

Description

Technical Field

[0001] The present invention relates to the field of traffic engineering, and more particularly, to an intelligent device for traffic big data processing. Background Art

[0002] Traffic signal lights are important devices for traffic control and management. When the fixed traffic signal lights installed on the road malfunction and need to be repaired, or when construction is carried out in places without signal lights, in order to ensure traffic safety, it is necessary to temporarily install movable traffic signal lights on the road; The movable traffic signal lights are composed of sensors, cameras, GPS positioning system devices, traffic light modules, etc. However, the existing movable traffic signal lights do not have a special fixing structure, and the center of gravity of the movable traffic signal is relatively high. When the movable traffic signal is hit by a driving car, due to its high center of gravity, it will roll over, resulting in damage to the sensors, cameras, GPS positioning system devices and traffic light modules. Currently, weights are added to the bottom of the movable traffic signal lights, but this is not convenient for traffic management personnel to move the traffic signal lights. Therefore, we have made improvements and proposed an intelligent device for traffic big data processing. Summary of the Invention

[0003] The purpose of the present invention is to address the problem that the center of gravity of the existing movable traffic signal lights is relatively high and they are prone to roll over when hit.

[0004] To achieve the above-mentioned invention purpose, the present invention provides an intelligent device for traffic big data processing to improve the above problems.

[0005] Specifically, this application is as follows: An intelligent device for traffic big data processing, including a connecting component, a protection component arranged at the bottom of the connecting component, an adjusting component and a pressurizing component arranged at the top of the connecting component; As a preferred technical solution of this application, the connecting component includes a base, a rectangular tube embedded in the base, a traffic light module slidably arranged outside the rectangular tube, and a collection component arranged on the traffic light module; As a preferred technical solution of this application, the collection component includes a mounting seat, a sensor and a GPS positioning system device arranged on the mounting seat, a camera embedded outside the mounting seat, and a clamping member arranged at the connection between the mounting seat and the traffic light module; As a preferred technical solution of this application, the protection component includes a threaded groove arranged on the base, and a protection plate threadedly connected to the threaded groove.

[0006] As a preferred technical solution of the present application, the clamping member includes a first limiting groove provided on the traffic signal module, a second limiting groove is provided on the mounting seat, the first limiting groove and the second limiting groove are adapted to each other, a limiting block is slidably provided on the second limiting groove, the limiting block is slidably provided on the first limiting groove and the second limiting groove, the end of the limiting block is wedge-shaped, and a second spring is connected to the corresponding surface of the second limiting groove and the limiting block.

[0007] As a preferred technical solution of the present application, a mating pipe is provided on the mounting seat, the mating pipe is slidably provided in the rectangular pipe, and a one-way valve is provided in the mating pipe.

[0008] As a preferred technical solution of the present application, a resisting ring is provided on the outer side of the rectangular pipe, a sliding groove is provided in the traffic signal module, and the sliding groove is adapted to the resisting ring.

[0009] As a preferred technical solution of the present application, the adjusting member includes an L-shaped groove provided on the base, a first piston is slidably provided on the L-shaped groove, a positioning ring is provided on the L-shaped groove, a first spring is provided on the corresponding surface of the positioning ring and the L-shaped groove, and the L-shaped groove communicates with the rectangular pipe.

[0010] As a preferred technical solution of the present application, the pressurizing member includes a second piston slidably provided in the mating pipe, an air inlet hole is provided on the second piston, a baffle is rotatably provided at one end of the second piston close to the one-way valve, the baffle is adapted to the air inlet hole, and a driving assembly is provided on the mounting seat.

[0011] As a preferred technical solution of the present application, the driving assembly includes a pressing rod slidably provided on the mounting seat, a fixing disk is provided at the end of the pressing rod, and a guiding assembly is provided in the second limiting groove.

[0012] As a preferred technical solution of the present application, the guiding assembly includes a guiding column slidably provided on the mounting seat, the guiding column is provided on the limiting block, and an unlocking assembly is provided in the mating pipe.

[0013] As a preferred technical solution of the present application, the unlocking assembly includes a guiding groove provided on the pressing rod, a transmission roller is slidably provided on the outer side of the guiding groove, a rope is wound around the outer side of the transmission roller, and the rope is connected to the guiding column.

[0014] Compared with the prior art, the beneficial effects of the present invention are as follows: Through the cooperation among the connecting component, the protection component, the adjusting component and the pressurizing component, when the device is in an unused state, the whole device is protected by the protection plate. When the device needs to be used, the center of gravity of the whole device is lowered, the stability of the device is improved, the possibility of tipping over caused by impact is reduced. At the same time, the traffic light module is deployed to improve the visibility of the traffic light module, which helps to optimize the traffic flow and reduce traffic accidents. The inside of the device is pressurized by the pressurizing component to prevent the incomplete deployment of the traffic light module caused by long-term use.

[0015] In the solution of the present application: 1. To solve the problem that the center of gravity of the movable traffic signal in the prior art is relatively high and it is easy to tip over when being impacted, in the present application, through the provided protection component and adjusting component, the overall center of gravity of the device is reduced, and the possibility of tipping over caused by impact is reduced; 2. Through the provided connecting component, protection component, adjusting component and pressurizing component, when using the device, the traffic light module is deployed to improve the visibility, solving the problem in the prior art that the vehicles at the back cannot see the traffic signal due to being blocked by external objects; 3. Through the provided connecting component, protection component, adjusting component and pressurizing component, the device is protected when it is not in use to prevent the internal components from being damaged due to tipping over, solving the problem in the prior art that the movable traffic signal is damaged when accidentally tipping over during storage in the warehouse. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic structural diagram of the intelligent device for traffic big data processing provided by the present application; Figure 2 It is a schematic internal structure diagram of the protection component of the intelligent device for traffic big data processing provided by the present application; Figure 3 It is a schematic structural diagram of the adjusting component of the intelligent device for traffic big data processing provided by the present application; Figure 4 It is a schematic structural diagram of the connecting component of the intelligent device for traffic big data processing provided by the present application; Figure 5 It is a schematic structural diagram of the clamping component of the intelligent device for traffic big data processing provided by the present application; Figure 6 It is a schematic structural diagram of the pressurizing component of the intelligent device for traffic big data processing provided by the present application; Figure 7 It is a schematic cross-sectional view of the base of the intelligent device for traffic big data processing provided by the present application; Reference numerals in the figure: 100, Connecting component; 101, Base; 102, Rectangular tube; 103, Traffic light module; 104, Acquisition component; 105, Fitting tube; 106, Check valve; 107, Resistance ring; 108, Sliding groove; 104a, Mounting seat; 104b, Sensor; 104c, Camera; 104d, Clamping part; 104e, GPS positioning system device; 104d-1, First limiting groove; 104d-2, Second limiting groove; 104d-3, Limiting block; 104d-4, Second spring; 200, Protection component; 201, Threaded groove; 202, Protection plate; 300, Adjusting component; 301, L-shaped groove; 302, First piston; 303, Positioning ring; 304, First spring; 400, Pressurizing component; 401, Second piston; 402, Air inlet hole; 403, Baffle; 404, Driving component; 404a, Extrusion rod; 404b, Fixed disk; 405, Guide component; 405a, Guide post; 406, Unlocking component; 406a, Guide groove; 406b, Driving roller; 406c, Rope. Detailed implementation mode

[0017] In order to enable those skilled in the art to better understand the solution of the present invention, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without making creative efforts shall fall within the protection scope of the present invention.

[0018] As described in the background art, currently, the center of gravity of the movable traffic signal is relatively high, and it is prone to tipping over when impacted.

[0019] To solve this technical problem, the present invention provides an intelligent device for traffic big data processing, which is applied to traffic engineering.

[0020] In order to enable those skilled in the art to better understand the solution of the present invention, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the accompanying drawings.

[0021] It should be noted that, without conflict, the embodiments in the present invention and the features and technical solutions in the embodiments can be combined with each other.

[0022] It should be noted that similar reference numerals and letters indicate similar items in the following drawings. Therefore, once an item is defined in one drawing, it does not need to be further defined and explained in subsequent drawings.

[0023] Example 1, please refer to Figures 1 - 5, A traffic big data processing intelligent device, including a connection component 100, a protection component 200 arranged at the bottom of the connection component 100, an adjustment component 300 and a pressurization component 400 arranged at the top of the connection component 100; The connection component 100 includes a base 101, a rectangular tube 102 embedded in the base 101, a traffic light module 103 slidably arranged on the outer side of the rectangular tube 102, and a collection component 104 arranged on the traffic light module 103. When the traffic light module 103 slides along the outer side of the rectangular tube 102, the rectangular tube 102 plays a guiding role for the traffic light module 103 and prevents the traffic light module 103 from deflecting; The collection component 104 includes a mounting seat 104a, a sensor 104b and a GPS positioning system device 104e arranged on the mounting seat 104a, a camera 104c embedded on the outer side of the mounting seat 104a, and a clamping component 104d arranged at the connection part between the mounting seat 104a and the traffic light module 103; The protection component 200 includes a threaded groove 201 arranged on the base 101, and a protection plate 202 threadedly connected to the threaded groove 201. When the protection plate 202 is rotated, the protection plate 202 slides along the threaded groove 201 and coincides with the base 101, so that the overall center of gravity of the device is lowered and the stability of the device is improved. The unfolded protection plate 202 is used to protect the sensor 104b, the GPS positioning system device 104e, the camera 104c and the traffic light module 103.

[0024] The clamping component 104d includes a first limiting groove 104d-1 arranged on the traffic light module 103, a second limiting groove 104d-2 arranged on the mounting seat 104a. The first limiting groove 104d-1 and the second limiting groove 104d-2 are mutually adapted. A limiting block 104d-3 is slidably arranged on the second limiting groove 104d-2. The limiting block 104d-3 is slidably arranged on the first limiting groove 104d-1 and the second limiting groove 104d-2. The end of the limiting block 104d-3 is wedge-shaped. A second spring 104d-4 is connected to the corresponding surface of the second limiting groove 104d-2 and the limiting block 104d-3. The second spring 104d-4 is used to drive the limiting block 104d-3 to reset. When the end of the limiting block 104d-3 presses against the first limiting groove 104d-1, the limiting block 104d-3 is squeezed and slides along the second limiting groove 104d-2. When the end of the limiting block 104d-3 completely enters the first limiting groove 104d-1, the elasticity of the second spring 104d-4 drives the limiting block 104d-3 to engage with the first limiting groove 104d-1, so that the traffic light module 103 is connected to the mounting seat 104a.

[0025] A mating pipe 105 is provided on the mounting base 104a. The mating pipe 105 is slidably arranged within the rectangular pipe 102. A one-way valve 106 is arranged within the mating pipe 105. The mating pipe 105 is in seamless abutment with the rectangular pipe 102. Together with the one-way valve 106, a sealed space is formed inside the mating pipe 105.

[0026] A resisting ring 107 is arranged on the outer side of the rectangular pipe 102. A sliding groove 108 is arranged within the traffic light module 103. The sliding groove 108 and the resisting ring 107 are mutually adapted. The resisting ring 107 limits the sliding groove 108 on the traffic light module 103 to prevent the traffic light module 103 from detaching from the rectangular pipe 102.

[0027] The adjusting component 300 includes an L-shaped groove 301 arranged on the base 101. A first piston 302 is slidably arranged on the L-shaped groove 301. A positioning ring 303 is arranged on the L-shaped groove 301. A first spring 304 is arranged on the corresponding surfaces of the positioning ring 303 and the L-shaped groove 301. The L-shaped groove 301 communicates with the rectangular pipe 102. The positioning ring 303 limits the first piston 302. When the protection plate 202 rotates and coincides with the base 101, the protection plate 202 presses the first piston 302. The first piston 302 is pressed and slides along the inner wall of the L-shaped groove 301. The first piston 302 and the protection plate 202 move downward synchronously, causing the air within the L-shaped groove 301 and the threaded groove 201 to be discharged into the rectangular pipe 102 through the positioning ring 303, increasing the air pressure within the rectangular pipe 102. The mating pipe 105 is lifted by the air pressure, causing the mating pipe 105 together with the mounting base 104a and the traffic light module 103 to move upward synchronously. Consequently, the traffic light module 103 and the mounting base 104a move upward synchronously, significantly enhancing the visibility of the traffic light module 103, facilitating the optimization of traffic flow, and reducing traffic accidents.

[0028] Beneficial effects: When the device is not in use, the protection plate 202 is in the initial unfolded state. The unfolded protection plate 202 wraps the sensor 104b, the GPS positioning system device 104e, the camera 104c and the traffic light module 103 to protect them from being damaged by external collisions. When the device needs to be used, the protection plate 202 is rotated and closed, so that the protection plate 202 slides along the threaded groove 201 and coincides with the base 101, reducing the overall center of gravity of the device and improving the stability of the device. When the device is impacted, the possibility of rollover is reduced. At the same time, the protection plate 202 squeezes the first piston 302, and the first piston 302 is squeezed and slides along the inner wall of the L-shaped groove 301. The first piston 302 and the protection plate 202 move downward synchronously, so that the air in the L-shaped groove 301 and the threaded groove 201 is discharged into the rectangular tube 102 through the positioning ring 303, increasing the air pressure in the rectangular tube 102. The air pressure jacks up the fitting tube 105, so that the fitting tube 105, together with the mounting seat 104a and the traffic light module 103, moves upward synchronously. Furthermore, the traffic light module 103 and the mounting seat 104a move upward synchronously, which can significantly improve the visibility of the traffic light module 103, help optimize the traffic flow and reduce traffic accidents. Together with the cooperation between the limit block 104d-3 and the first limit groove 104d-1 and the second limit groove 104d-2, the mounting seat 104a and the traffic light module 103 can be quickly disassembled. When the mounting seat 104a and the traffic light module 103 are released from the limit, the air pressure inside the rectangular tube 102 decreases, and then the traffic light module 103 slides downward along the rectangular tube 102 by its own weight and returns to the initial position.

[0029] Embodiment 2 further optimizes the intelligent device provided in Embodiment 1. Specifically, as Figures 6 - 7 shown, the pressurizing component 400 includes a second piston 401 slidably disposed in the fitting tube 105. An air inlet hole 402 is provided on the second piston 401. One end of the second piston 401 close to the one-way valve 106 is rotatably provided with a baffle plate 403, and the baffle plate 403 is adapted to the air inlet hole 402. A driving component 404 is provided on the mounting seat 104a. By the pressurizing component 400, the air pressure inside the fitting tube 105 is increased. When the second piston 401 moves downward along the inner wall of the fitting tube 105, the baffle plate 403 fits with the air inlet hole 402, and the second piston 401 squeezes the air in the fitting tube 105 into the closed space formed by the rectangular tube 102 and the fitting tube 105 through the one-way valve 106, increasing the pressure of the closed space and preventing air leakage in the closed space. Furthermore, it prevents the unfolded traffic light module 103 and the mounting seat 104a from moving downward.

[0030] The driving component 404 includes a pressing rod 404a slidably arranged on the mounting base 104a. A fixed disk 404b is arranged at the end of the pressing rod 404a. A guiding component 405 is arranged in the second limiting groove 104d-2. The piston two 401 is displaced by the driving component 404. When the fixed disk 404b is pressed, the fixed disk 404b drives the pressing rod 404a to slide along the mounting base 104a, and the pressing rod 404a drives the piston two 401 to slide synchronously, so that the air in the matching pipe 105 is extruded from the one-way valve 106 into the sealed space formed by the rectangular pipe 102 and the matching pipe 105.

[0031] The guiding component 405 includes a guiding column 405a slidably arranged on the mounting base 104a. The guiding column 405a is arranged on the limiting block 104d-3. An unlocking component 406 is arranged in the matching pipe 105. The limiting block 104d-3 is guided by the guiding component 405. The guiding column 405a is used to guide the limiting block 104d-3 to prevent the limiting block 104d-3 from deviating during sliding.

[0032] The unlocking component 406 includes a guiding groove 406a arranged on the pressing rod 404a. A transmission roller 406b is slidably arranged outside the guiding groove 406a. A rope 406c is wound around the outside of the transmission roller 406b. The rope 406c is connected to the guiding column 405a. The guiding groove 406a makes there be a gap at the connection between the pressing rod 404a and the mounting base 104a, so that the outside air can enter the matching pipe 105 from the gap. At the same time, when the pressing rod 404a rotates, the pressing rod 404a drives the transmission roller 406b to rotate synchronously, and the transmission roller 406b drives the rope 406c to wind around the outside of the transmission roller 406b, so that the guiding column 405a is pulled by the rope 406c and displaced in the direction of the pulling force. The guiding column 405a drives the engagement between the limiting block 104d-3 and the first limiting groove 104d-1 to be released, and further makes the mounting base 104a and the traffic light module 103 release the limit.

[0033] Beneficial effects: When the device is in use, since the traffic light module 103 and the mounting base 104a are in an unfolded state, when the device is used for a long time and the air pressure in the sealed space formed by the matching pipe 105 and the rectangular pipe 102 is insufficient, the pressurizing component 400 is used to pressurize the sealed space to make the internal air pressure sufficient, so as to prevent the situation that the traffic light module 103 and the mounting base 104a displace downward along the rectangular pipe 102 due to insufficient air pressure in the sealed space.

[0034] The usage process of the intelligent device provided by the present invention is as follows: Working principle: When the device needs to be used, rotate the closing protection plate 202 so that the protection plate 202 slides along the thread groove 201 and coincides with the base 101, reducing the overall center of gravity of the device and improving its stability. When the device is impacted, the possibility of tipping over is reduced. At the same time, the protection plate 202 presses the first piston 302, and the first piston 302 is pressed and slides along the inner wall of the L-shaped groove 301. The first piston 302 and the protection plate 202 move downward synchronously, causing the air in the L-shaped groove 301 and the thread groove 201 to be discharged into the rectangular tube 102 through the positioning ring 303, increasing the air pressure in the rectangular tube 102. The air pressure jacks up the fitting tube 105, causing the fitting tube 105, together with the mounting seat 104a and the traffic signal module 103, to move upward synchronously. As a result, the traffic signal module 103 and the mounting seat 104a move upward synchronously. The guiding groove 406a creates a gap at the connection between the pressing rod 404a and the mounting seat 104a, allowing external air to enter the fitting tube 105 through the gap. At the same time, when the pressing rod 404a is rotated, the pressing rod 404a drives the driving roller 406b to rotate synchronously, and the driving roller 406b drives the rope 406c to wind around the outside of the driving roller 406b, causing the guiding column 405a to be pulled by the rope 406c and move in the direction of the pulling force. The guiding column 405a causes the engagement between the limiting block 104d-3 and the first limiting groove 104d-1 to be released, thereby releasing the limit between the mounting seat 104a and the traffic signal module 103. At this time, the air pressure inside the rectangular tube 102 decreases, and the traffic signal module 103 slides downward along the rectangular tube 102 under its own weight and returns to its initial position.

[0035] In the present invention, unless otherwise clearly defined and limited, terms such as "installation", "connection", "connection", "fixation", etc. shall be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral body; it can be a mechanical connection, an electrical connection, or communication with each other; it can be directly connected, or indirectly connected through an intermediate medium, and can be the communication inside two components or the interaction relationship between two components, unless otherwise clearly defined. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0036] Obviously, the embodiments described above are only a part of the embodiments of the present invention, rather than all of them. The preferred embodiments of the present invention are shown in the drawings, but they do not limit the patent scope of the present invention. The present invention can be implemented in many different forms. On the contrary, the purpose of providing these embodiments is to make the understanding of the disclosed content of the present invention more thorough and comprehensive. Although the present invention has been described in detail with reference to the foregoing embodiments, for those skilled in the art, they can still modify the technical solutions described in the foregoing specific embodiments, or perform equivalent replacements on some of the technical features. Any equivalent structure that makes use of the content of the specification and drawings of the present invention, directly or indirectly applied in other related technical fields, is equally within the scope of protection of the present invention patent.

Claims

1. An intelligent device for processing traffic big data, characterized in that, It includes a connecting component (100), a protective component (200) arranged at the bottom of the connecting component (100), an adjusting component (300) and a pressurizing component (400) arranged at the top of the connecting component (100); The connecting component (100) includes a base (101), a rectangular tube (102) embedded in the base (101), a traffic light module (103) slidably arranged outside the rectangular tube (102), and a collection component (104) arranged on the traffic light module (103); The collection component (104) includes a mounting seat (104a), a sensor (104b) and a GPS positioning system device (104e) arranged on the mounting seat (104a), a camera (104c) embedded outside the mounting seat (104a), and a clamping part (104d) arranged at the connection between the mounting seat (104a) and the traffic light module (103); The protective component (200) includes a threaded groove (201) arranged on the base (101), and a protective plate (202) is threadedly connected to the threaded groove (201).

2. The intelligent device for processing traffic big data according to claim 1, characterized in that The clamping part (104d) includes a first limiting groove (104d-1) arranged on the traffic light module (103), a second limiting groove (104d-2) arranged on the mounting seat (104a), the first limiting groove (104d-1) and the second limiting groove (104d-2) are mutually adapted, a limiting block (104d-3) is slidably arranged on the second limiting groove (104d-2), the limiting block (104d-3) is slidably arranged on the first limiting groove (104d-1) and the second limiting groove (104d-2), the end of the limiting block (104d-3) is wedge-shaped, and a second spring (104d-4) is connected to the corresponding surface of the second limiting groove (104d-2) and the limiting block (104d-3).

3. The intelligent device for processing traffic big data according to claim 2, wherein A matching tube (105) is arranged on the mounting seat (104a), the matching tube (105) is slidably arranged in the rectangular tube (102), and a one-way valve (106) is arranged in the matching tube (105).

4. The intelligent device for processing traffic big data according to claim 3, wherein A resisting ring (107) is arranged outside the rectangular tube (102), a sliding groove (108) is arranged in the traffic light module (103), and the sliding groove (108) is mutually adapted to the resisting ring (107).

5. The intelligent device for processing traffic big data according to claim 4, characterized in that, The adjusting component (300) includes an L-shaped groove (301) arranged on the base (101), a first piston (302) is slidably arranged on the L-shaped groove (301), a positioning ring (303) is arranged on the L-shaped groove (301), a first spring (304) is arranged on the corresponding surfaces of the positioning ring (303) and the L-shaped groove (301), and the L-shaped groove (301) is communicated with the rectangular tube (102).

6. The intelligent device for processing traffic big data according to claim 5, wherein The pressure applying component (400) includes a second piston (401) slidably arranged in the mating pipe (105). An air inlet hole (402) is arranged on the second piston (401). One end of the second piston (401) close to the one-way valve (106) is rotatably provided with a baffle plate (403). The baffle plate (403) is adapted to the air inlet hole (402). A driving assembly (404) is arranged on the mounting seat (104a).

7. The intelligent device for processing traffic big data according to claim 6, wherein The driving assembly (404) includes a pressing rod (404a) slidably arranged on the mounting seat (104a). A fixed disk (404b) is arranged at the end of the pressing rod (404a). A guiding assembly (405) is arranged in the second limiting groove (104d-2).

8. The intelligent device for processing traffic big data according to claim 7, wherein, The guiding assembly (405) includes a guiding column (405a) slidably arranged on the mounting seat (104a). The guiding column (405a) is arranged on a limiting block (104d-3). An unlocking assembly (406) is arranged in the mating pipe (105).

9. The intelligent device for processing traffic big data according to claim 8, characterized in that, The unlocking assembly (406) includes a guiding groove (406a) arranged on the pressing rod (404a). A transmission roller (406b) is slidably arranged on the outer side of the guiding groove (406a). A rope (406c) is wound around the outer side of the transmission roller (406b). The rope (406c) is connected to the guiding column (405a).

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