Linear lifting mechanism and arresting safety device

Abstract

This utility model discloses a linear lifting mechanism and a blocking safety device, including a first linear module, a second linear module located at the output end of the first linear module and capable of vertical movement, and a transmission module located between the first and second linear modules; the second linear module includes a base, an active slide located under the base, a plurality of driven slides spaced apart on the base and located above the active slide, and a stop member corresponding to each driven slide; each of the active slides and each of the driven slides is provided with a mounting position; during operation, the first linear module drives the second linear module to rise, and at the same time, the transmission module drives the active slide to slide upward and pushes each driven slide upward; the first linear module drives the second linear module to fall, and at the same time, the transmission module drives the active slide to slide downward, and each driven slide slides downward under the action of gravity, and the corresponding stop member stops the corresponding driven slide at a preset position on the base.

Description

Technical Field

[0001] This utility model relates to the field of electric lifting components, and in particular to a linear lifting mechanism and a safety device for blocking. Background Technology

[0002] High-speed rail platforms, open subway platforms, train stations, docks, shopping malls and other places where people gather often require barriers to prevent pedestrians or vehicles from crossing the boundary or entering prohibited areas. These barriers should be able to be set up and removed quickly to ensure the safety of the relevant areas.

[0003] Chinese patent CN118756618A discloses an automatic lifting barrier with a barrier cable. The electric lifting component in this patent adopts a single linear module structure. With this structure, the barrier cable rises to a relatively low height. If a person or object passes through the lifting barrier too high, the barrier cable may interfere with the person or object. Utility Model Content

[0004] In view of this, the present invention addresses the deficiencies of the existing technology, and its main purpose is to provide a linear lifting mechanism and a safety device that solves the problem of the relatively low lifting height of a single linear module.

[0005] To achieve the above objectives, the present invention adopts the following technical solution: a linear lifting mechanism, comprising a first linear module, a second linear module disposed at the output end of the first linear module and capable of moving up and down, and a transmission module disposed between the first linear module and the second linear module; The second linear module includes a base, an active slide seat disposed under the base, a plurality of driven slide seats spaced apart on the base and located on the upper end of the active slide seat, and a stop member disposed corresponding to each driven slide seat; each of the active slide seats and each of the driven slide seats is provided with a mounting position, and the output end of the transmission module is connected to the active slide seat; During operation, the first linear module drives the second linear module to rise, and at the same time, the transmission module drives the active slide to slide upward and pushes each of the driven slides upward; the first linear module drives the second linear module to fall, and at the same time, the transmission module drives the active slide to slide downward, and each of the driven slides slides downward under the action of gravity. Correspondingly, the stop member stops the corresponding driven slide at a preset position on the base.

[0006] As a preferred embodiment: under normal conditions, the active slide and the multiple driven slides are arranged at equal intervals on the base; under working lifting conditions, the active slide and the multiple driven slides gradually move closer together.

[0007] As a preferred embodiment: under normal conditions, the active slide and the multiple driven slides are arranged on the base at unequal intervals; under working lifting conditions, the active slide and the multiple driven slides gradually move closer together.

[0008] As a preferred embodiment: the stop element is a blocking block provided on the base, and multiple blocking blocks are respectively provided at the bottom of the driven slide. Correspondingly, the bottom surface of each driven slide is provided with a contact block for the blocking block. The height of the multiple blocking blocks gradually increases from the lower end to the upper end of the base, and correspondingly, the height of the multiple contact blocks gradually decreases from the lower end to the upper end of the base.

[0009] As a preferred embodiment: the transmission module includes a rack on the first linear module, a gear meshing with the rack, a rotating shaft mounted on the gear, and a pulley assembly connected to the rotating shaft and mounted on the base; the active slide is connected to the pulley assembly via a clamping block, and the pulley assembly drives the active slide to slide up and down.

[0010] As a preferred embodiment: a fixed seat is fixed to the top of the base, and the fixed seat is provided with the mounting position. The active slide pushes multiple driven slides to slide upward. When the uppermost driven slide contacts the fixed seat, the active slide and multiple driven slides stop sliding.

[0011] As a preferred embodiment, the mounting position is a mounting hole structure, a clamping structure, or a locking structure.

[0012] As a preferred embodiment, the active slide and the plurality of driven slides are mounted and slidably connected by a slider and slide rail structure.

[0013] A safety device for blocking includes a blocking cable and at least two linear lifting mechanisms, with adjacent linear lifting mechanisms arranged at intervals and located on the same horizontal plane; one end of the blocking cable is disposed in the mounting position of one of the linear lifting mechanisms, and the other end of the blocking cable is disposed in the corresponding mounting position of the other linear lifting mechanism, and the blocking cable rises or falls synchronously with the two linear lifting mechanisms.

[0014] As a preferred embodiment: each of the linear lifting mechanisms is covered by a housing, the top of the housing has an upper opening for the linear lifting mechanism to move up and down, and the side of the housing has a lower opening for the arresting cable to pass through.

[0015] Compared with the prior art, this utility model has obvious advantages and beneficial effects. Specifically, as can be seen from the above technical solution: Compared to traditional electric lifting assemblies, this application adds a linear module, resulting in two linear modules. When the first linear module drives the second linear module to rise, it works in conjunction with the transmission module to push the active slide and multiple driven slides upward, thereby raising the components at the mounting position. Compared to the traditional single linear module design, this application can raise the components at the mounting position higher, thus expanding its application range. Furthermore, the transmission module design eliminates the need for a separate drive source when the active slide and multiple driven slides slide upward, making the structural design ingenious and practical.

[0016] To more clearly illustrate the structural features and effects of this utility model, the following detailed description of this utility model is provided in conjunction with the accompanying drawings and specific embodiments. Attached Figure Description

[0017] Figure 1 This is a perspective view of the linear lifting mechanism under normal conditions according to an embodiment of this utility model; Figure 2 This is a perspective view of the linear lifting mechanism in the rising state according to an embodiment of this utility model; Figure 3 This is an exploded view of the linear lifting mechanism according to an embodiment of this utility model; Figure 4 This is a cross-sectional view of the linear lifting mechanism according to an embodiment of this utility model; Figure 5 This is a perspective view of the mounting position according to an embodiment of the present invention; Figure 6 This is a schematic diagram of the closed state of the barrier safety device according to an embodiment of this utility model; Figure 7 This is a schematic diagram of the blocking safety device in the open state according to an embodiment of this utility model; Figure label: 10. First linear module; 11. Base 12. Motor 13. Lead screw structure 14. Slide 20. Second linear module; 21. Base 22. Active slide 23. Driven slide 24. Stopper Component 25. Fixing Base 201. Mounting position; 202. Guide block 203, guide hole; 204, positioning block 205. Clamping block; 241. Blocking block 242, Contact block 23a, First driven slide 23b, Second driven slide block; 241a, First blocking block 242a, First contact block; 241b, Second blocking block 242b, Second Contact Block Transmission module 31, rack 32. Gear 33. Shaft 34. Pulley assembly 35. Clamping block 1. Barrier cable; 2. Linear lifting mechanism. Detailed Implementation

[0018] To make the technical problems, technical solutions, and beneficial effects to be solved by this application clearer, the following detailed description is provided in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative and are not intended to limit the scope of this application.

[0019] It should be noted that when a component is referred to as being "fixed to" or "set on" another component, it can be directly on or indirectly on that other component. When a component is referred to as being "connected to" another component, it can be directly connected to or indirectly connected to that other component.

[0020] It should be understood that the terms "length", "width", "upper", "lower", "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 application 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 limitations on this application.

[0021] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this application, "multiple" means two or more, unless otherwise explicitly specified.

[0022] Please see Figures 1 to 5 As shown, this application provides a linear lifting mechanism, including a first linear module 10, a second linear module 20 disposed at the output end of the first linear module 10 and capable of moving up and down, and a transmission module 30 disposed between the first linear module 10 and the second linear module 20.

[0023] The second linear module 20 includes a base 21, an active slide 22 disposed under the base 21, a plurality of driven slides 23 spaced apart from the base 21 and located above the active slide 22, and a stop member 24 corresponding to each driven slide 23. Each of the active slides 22 and each of the driven slides 23 is provided with a mounting position 201, and the output end of the transmission module 30 is connected to the active slide 22. The mounting position 201 can be used to install a stopping cable, and of course, can also be used to install other components.

[0024] like Figure 2 During operation, the first linear module 10 drives the second linear module 20 to rise, while the transmission module 30 drives the active slide block 22 to slide upward, and pushes each of the driven slide blocks 23 to slide upward. Figure 1 The first linear module 10 drives the second linear module 20 to descend. At the same time, the transmission module 30 drives the active slide 22 to slide downward, and each of the driven slides 23 slides downward under the action of gravity. Correspondingly, the stop member 24 stops the corresponding driven slide 23 at a preset position on the base 21.

[0025] Taking the installation of a barrier cable on the mounting position 201 as an example, under normal conditions, the barrier cable installed on the mounting position 201 is at a relatively low height. At this time, it can be considered that the barrier cable is in a blocking state. When the first linear module 10 drives the second linear module 20 to rise, at the same time, the transmission module 30 drives the active slide 22 to slide upward and pushes each of the driven slides 23 to slide upward. Multiple barrier cables rise upward and converge synchronously. At this time, it can be considered that the barrier cable is in an open state.

[0026] Compared to traditional electric lifting assemblies, this application adds a linear module, resulting in two linear modules. When the first linear module drives the second linear module to rise, it works in conjunction with the transmission module to push the active slide and multiple driven slides upward, thereby raising the components at the mounting position. Compared to the traditional single linear module design, this application can raise the components at the mounting position higher, thus expanding its application range. Furthermore, the transmission module design eliminates the need for a separate drive source when the active slide and multiple driven slides slide upward, making the structural design ingenious and practical.

[0027] like Figure 3 In one embodiment, the first linear module 10 includes a base 11, a motor 12 mounted on the base 11, a lead screw structure 13 connected to the output shaft of the motor 12, and a slide 14 connected to the lead screw structure 13. The second linear module 20 is mounted on the slide 14 and slides up and down with the slide 14. The slide 14 and the base 11 are connected and slide together by a slider and a slide rail structure.

[0028] For example, the active slide 22 and the plurality of driven slides 23 all slide by means of a slider cooperating with a slide rail structure.

[0029] In one embodiment, under normal conditions, the active slide 22 and the plurality of driven slides 23 are arranged at equal intervals on the base 21; under the working lifting state, the active slide 22 and the plurality of driven slides 23 gradually move closer together. In another embodiment, under normal conditions, the active slide 22 and the plurality of driven slides 23 may also be arranged at non-equal intervals on the base 21; under the working lifting state, the active slide 22 and the plurality of driven slides 23 gradually move closer together. The spacing of the plurality of driven slides 23 can be set according to different usage environments.

[0030] The stopping element 24 includes a blocking block 241 disposed on the base 21. Multiple blocking blocks 241 are respectively disposed on the sides of the driven slide 23, spaced apart. Correspondingly, the bottom surface of each driven slide 23 is provided with a contact block 242 that blocks the blocking block 241. The height of the multiple blocking blocks 241 gradually increases from the lower end to the upper end of the base 21, and correspondingly, the height of the multiple contact blocks 242 gradually decreases from the lower end to the upper end of the base 21. When the multiple driven slides 23 slide down to their respective set different heights, the corresponding contact blocks 242 and blocking blocks 241 collide and restrain each other, stopping their descent sequentially and stopping at different heights, thus achieving longitudinal spacing.

[0031] like Figure 4 As shown, the driven slide 23 includes a first driven slide 23a and a second driven slide 23b, with the first driven slide 23a located below the second driven slide 23b. Corresponding to the first driven slide 23a are a first blocking block 241a and a first contact block 242a; corresponding to the second driven slide 23b are a second blocking block 241b and a second contact block 242b. The height of the first blocking block 241a is lower than that of the second blocking block 241b, and the height of the first contact block 242a is higher than that of the second contact block 242b. When the first contact block 242a slides up or down past the second blocking block 241b, due to the height difference, the first contact block 242a can smoothly pass the position of the second blocking block 241b. When the first contact block 242a reaches the position of the first blocking block 241a, the two will contact each other and stop descending; similarly, when the second contact block 242b reaches the position of the second blocking block 241b, the two will contact each other and stop descending.

[0032] For example, the blocking block 241 is located in the middle of the sliding path of the driven slide 23. Similarly, the contact block 242 is located in the middle of the bottom surface of the driven slide 23. When the corresponding blocking block 241 contacts the contact block 242, the force point of the driven slide 23 is in the middle position, which effectively prevents the driven slide 23 from deviating on the slide rail.

[0033] like Figure 3 In one embodiment, the transmission module 30 includes a rack 31 mounted on the first linear module 10, a gear 32 meshing with the rack 31, a rotating shaft 33 mounted on the gear 32, and a pulley assembly 34 connected to the rotating shaft 33 and mounted on the base 21. The active slide 22 is connected to the pulley assembly 34 via a clamping block 35, one end of which is screwed onto the active slide 22. The pulley assembly 34 drives the active slide 22 to slide up and down. The rotating shaft 33 is mounted on the base via a bearing. During operation, when the first linear module 10 drives the second linear module 20 to slide, since the rack 31 is fixed on the first linear module 10 and the gear 32 is mounted on the base, the gear rotates on the rack as it moves up and down with the base, thereby driving the pulley assembly, which in turn drives the active slide. This transmission module 30 has a simple and practical structure and is relatively low in cost.

[0034] In one embodiment, a fixing seat 25 is fixed to the top of the base 21, and the fixing seat 25 is fixed to the uppermost part of the base 21. The fixing seat 25 is provided with the mounting position 201. The active slide 22 pushes the multiple driven slides 23 to slide upward. When the uppermost driven slide 23 contacts the fixing seat 25, the active slide 22 and the multiple driven slides 23 stop sliding.

[0035] In one embodiment, the mounting position 201 is any one of a mounting hole structure, a clamping structure, or a locking structure, or a combination of multiple structures.

[0036] For example, the mounting position 201 is a combination of a mounting hole structure and a clamping structure; such as Figure 5 The mounting position 201 is a rope-pressing assembly, which includes a guide block 202 located on the side edge of the active slide, driven slide, or fixed base 25. The guide block 202 has a guide hole 203 for the rope to pass through. A positioning block 204 is located beside the guide block, and a clamping block 205 is screwed onto the positioning block 204. Semi-circular holes are provided on the opposite surfaces of the positioning block 204 and the clamping block 205. After the rope passes through the guide hole 203, it is placed into the semi-circular hole of the positioning block 204, and then the clamping block 205 is locked onto the positioning block 204, thereby pressing the rope tight and forming a positioning installation. Rope-pressing assemblies are symmetrically arranged on the same active slide, driven slide, or fixed base 25. The two rope-pressing assemblies are connected by an optical axis guide rail, increasing the distance between the optical axis guide rails, reducing the torque between the rope and the optical axis guide rail, reducing the stress, and making the structure stable.

[0037] In another specific embodiment, the mechanism completes one round trip in 8 seconds, requiring the first linear module 10 to travel 810mm and the second linear module 20 to travel 853mm, with some margin allowed. It rises in 4 seconds and falls in 4 seconds. The second linear module 20 is driven and completes the 905mm stroke of the first linear module in 4 seconds. This can be accomplished at a speed of 240mm / s.

[0038] like Figures 6-7 As shown, this application also provides a barrier safety device, including a barrier cable 1 and at least two linear lifting mechanisms 2. Adjacent linear lifting mechanisms 2 are arranged at intervals and located on the same horizontal plane. One end of the barrier cable 1 is disposed in the mounting position 201 of one of the linear lifting mechanisms 2, and the other end of the barrier cable 1 is disposed in the corresponding mounting position 201 of the other linear lifting mechanism 2. The barrier cable 1 rises or falls synchronously with the two linear lifting mechanisms 2. This barrier safety device is used in high-speed rail platforms, open subway platforms, stations, docks, shopping malls, and other places where crowds gather, often requiring barriers to prevent pedestrians or vehicles from crossing boundaries or entering prohibited areas. It can quickly deploy and quickly remove barriers to ensure the safety of the relevant areas.

[0039] Each of the linear lifting mechanisms is covered by an outer shell (not shown in the figure). The top of the outer shell has an upper opening for the linear lifting mechanism to move up and down, and the side of the outer shell has a lower opening for the arresting cable 1 to pass through.

[0040] Since this safety device adopts all the technical solutions of all the above embodiments, it also has all the beneficial effects brought about by the technical solutions of the above embodiments, which will not be described in detail here.

[0041] The above description is merely a preferred embodiment of this application and is not intended to limit this application. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of this application should be included within the protection scope of this application.

Claims

1. A linear lift mechanism characterized by: It includes a first linear module, a second linear module located at the output end of the first linear module and capable of moving up and down, and a transmission module located between the first linear module and the second linear module. The second linear module includes a base, an active slide seat disposed under the base, a plurality of driven slide seats spaced apart on the base and located on the upper end of the active slide seat, and a stop member disposed corresponding to each driven slide seat; each of the active slide seats and each of the driven slide seats is provided with a mounting position, and the output end of the transmission module is connected to the active slide seat; During operation, the first linear module drives the second linear module to rise, and at the same time, the transmission module drives the active slide to slide upward and pushes each of the driven slides upward; the first linear module drives the second linear module to fall, and at the same time, the transmission module drives the active slide to slide downward, and each of the driven slides slides downward under the action of gravity. Correspondingly, the stop member stops the corresponding driven slide at a preset position on the base.

2. The linear lift mechanism of claim 1, wherein: Under normal conditions, the active slide and multiple driven slides are arranged at equal intervals on the base; under working lifting conditions, the active slide and multiple driven slides gradually move closer together.

3. The linear lift mechanism of claim 1, wherein: Under normal conditions, the active slide and multiple driven slides are arranged on the base at unequal intervals; under working lifting conditions, the active slide and multiple driven slides gradually move closer together.

4. The linear lift mechanism of claim 1, wherein: The stopping component includes a blocking block disposed on the base, and multiple blocking blocks are respectively disposed on the side of the driven slide. Correspondingly, the bottom surface of each driven slide is provided with a contact block for the blocking block. The height of the multiple blocking blocks gradually increases from the lower end to the upper end of the base, and correspondingly, the height of the multiple contact blocks gradually decreases from the lower end to the upper end of the base.

5. The linear lift mechanism of claim 1, wherein: The transmission module includes a rack on the first linear module, a gear meshing with the rack, a rotating shaft mounted on the gear, and a pulley assembly connected to the rotating shaft and mounted on the base; the active slide is connected to the pulley assembly via a clamping block, and the pulley assembly drives the active slide to slide up and down.

6. The linear lift mechanism of claim 1, wherein: The top of the base is fixed with a fixed seat, and the fixed seat is provided with the mounting position. The active slide pushes multiple driven slides to slide upward. When the uppermost driven slide contacts the fixed seat, the active slide and multiple driven slides stop sliding.

7. The linear lift mechanism of claim 1, wherein: The mounting position is a mounting hole structure, a clamping structure, or a locking structure.

8. The linear lift mechanism of claim 1, wherein: The active slide and the multiple driven slides are installed and slid together by a slider and slide rail structure.

9. A barrier safety device characterized by: It includes a barrier cable and at least two linear lifting mechanisms as described in any one of claims 1-8, with adjacent linear lifting mechanisms arranged at intervals and located on the same horizontal plane; one end of the barrier cable is disposed in the mounting position of one of the linear lifting mechanisms, and the other end of the barrier cable is disposed in the corresponding mounting position of the other linear lifting mechanism, and the barrier cable rises or falls synchronously with the two linear lifting mechanisms.

10. A chicanes according to claim 9, characterized in that: Each of the linear lifting mechanisms is covered by a housing, the top of which has an upper opening for the linear lifting mechanism to move up and down, and the side of which has a lower opening for the arresting cable to pass through.

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