A new type of anti-passage barrier device

Abstract

This utility model relates to a novel anti-passage barrier device, comprising two upright posts with a scissor-shaped connecting rod between them. A hinge is installed on the right upright post, comprising a first part, a second part, a rotating shaft, and a limiting locking mechanism. The limiting locking mechanism includes a rotating plate and a friction plate. The first part includes a first bushing, and the second part includes a second bushing. Both the first and second bushings are fitted onto the rotating shaft with a gap between them. The thickness of the friction plate is the same as the gap width. When the rotating plate rotates, it can cause the friction plate to engage with or disengage from the gap. When not in use, this utility model can be rotated to be close to a base without affecting passage near the base. The hinge angle is locked to prevent the upright posts and the scissor-shaped connecting rod from being manually rotated, thus achieving a good passage barrier effect. The telescopic rod is inserted into the positioning hole on the scissor-shaped connecting rod, which can also prevent the upright posts and the scissor-shaped connecting rod from being manually folded.

Description

Technical Field

[0001] This utility model relates to devices for blocking or restricting passage, and in particular to a novel anti-passage blocking device. Background Technology

[0002] Grain collection and transportation sites utilize various large-scale machinery such as grain conveyors and grain screening and impurity removal machines. At these sites, there are instances of personnel operating these machines improperly, failing to follow designated safety passages, and instead illegally passing through the sides of the passages to access the machinery. In grain depots and grain collection and transportation sites, in areas where access is explicitly prohibited, there are still instances of personnel illegally crossing into these areas to take shortcuts, posing safety hazards. Although safety measures such as posting signs and setting up warning lines have been implemented in many areas with potential safety hazards, these methods have significant shortcomings. For example, the signs are not conspicuous enough, the warning lines are not secure enough, and they are prone to falling off or being deliberately damaged. Furthermore, relying on voluntary compliance by personnel is insufficient to effectively prevent violations.

[0003] One existing technology is a protective railing that can be easily folded up and installed in areas where passage needs to be restricted. However, it is easy for people to fold it up or move it, so its effect in preventing people from passing through is generally limited. Utility Model Content

[0004] The purpose of this utility model is to propose a new type of anti-passage barrier device to solve the technical problem that existing guardrails are unable to effectively prevent unauthorized passage at large equipment locations and areas with operational risks.

[0005] The technical solution of this utility model is:

[0006] A novel through-traffic blocking device includes two upright posts with a scissor-shaped connecting rod between them. A hinge is mounted on the right upright post. The hinge includes a first part, a second part, a rotating shaft, and a limiting locking mechanism. The limiting locking mechanism includes a rotating plate and a friction plate. The first part includes a first bushing, and the second part includes a second bushing. Both the first and second bushings are fitted onto the rotating shaft, and their axial positions are limited. A gap is left between the first and second bushings. The thickness of the friction plate is consistent with the width of the gap between two adjacent bushings. The rotating plate is rotatably mounted on the first or second part. When the rotating plate rotates, it can cause the friction plate to engage in the gap between two adjacent bushings or move the friction plate out of the gap between two adjacent bushings.

[0007] Furthermore, two first bushings are spaced apart on the first part, and one second bushing is provided on the second part. The second bushing is located between the two first bushings, so there is a gap between the second bushing and the first bushings on both sides. Two sets of friction plates are provided on the rotating plate, and the two sets of friction plates are respectively inserted into the two sets of gaps.

[0008] Furthermore, the friction pad is rotatably mounted on the rotating plate so that it abuts against the surface of the rotating plate after being folded.

[0009] Furthermore, the friction plate includes a rigid layer and elastic layers located on both sides of the rigid layer. When the friction plate enters the gap between the two sets of bushings, the elastic layers will deform to increase the friction between the friction plate and the corresponding bushing.

[0010] Furthermore, the height of the left-side support column is adjustable.

[0011] Furthermore, the left-side column includes an upper column and a lower column, which are slidably connected together. The lower column has bolt holes, and the upper column has an elongated hole extending in the vertical direction. The nut head of the long screw extends into the cavity of the upper column, and the end of the screw extends out of the lower column. A nut is fitted onto the end of the screw.

[0012] Furthermore, a locking device is provided between the two uprights. The locking device includes a locking rod, one end of which is hinged to one of the uprights and the other end is provided with a hook opening. A positioning pin protrudes from the other upright. The size of the hook opening matches the size of the positioning pin to secure it. The length of the locking rod is consistent with the distance between the two uprights after folding to maintain the folded state of the scissor-shaped linkage.

[0013] Furthermore, the rotating plate is rotatably mounted on the first part, and the hinge also includes a telescopic rod mechanism. The telescopic rod mechanism includes a telescopic rod that is movably mounted on the first part and a pulley mounted on the first part. The first end of the telescopic rod is provided with a stop end, and the other end of the telescopic rod is a cantilever end. The telescopic rod mechanism also includes a steel wire rope, one end of which is fixed to the rotating plate, and the other end passes around the pulley and is fixed to the stop end. The rightmost straight rod of the scissor-shaped connecting rod is provided with a positioning hole, the shape of which matches the shape of the cantilever end for insertion.

[0014] Furthermore, the telescopic rod mechanism also includes a spring sleeved on the telescopic rod, the spring being a tension spring and being installed between the stop end and the guide sleeve.

[0015] Furthermore, multiple positioning holes are provided at intervals on the straight rod at the rightmost end of the scissor-shaped link, so that the scissor-shaped link can be extended to different lengths.

[0016] The beneficial effects of this utility model are as follows: When not in use, this utility model can be rotated to be close to a base without affecting passage near the base. The locking mechanism prevents the upright post and scissor-shaped linkage from automatically opening after being folded. After unfolding this utility model in the direction where passage needs to be blocked, adjusting the height of the left upright post to make it stand on the ground can prevent the weight of the upright post and scissor-shaped linkage from being entirely applied to the hinge, thus affecting the hinge's lifespan.

[0017] Meanwhile, the locked hinge angle prevents the column and scissor-shaped link from being manually rotated, thus achieving a better blocking effect. The insertion of the telescopic rod into the positioning hole on the scissor-shaped link further prevents the column and scissor-shaped link from being manually folded, further enhancing the blocking effect of this invention.

[0018] In this invention, the relative angle between the first and second parts of the hinge is increased by rotating the friction plate.

[0019] It is understood that this utility model can be used not only at grain collection and transportation sites, but also at construction sites, road construction sites, or other construction site enclosures. This utility model is a general-purpose device, not a special device for grain depots. Attached Figure Description

[0020] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0021] Figure 1 This is a schematic diagram of the structure of Embodiment 1 of this utility model in a semi-expanded state;

[0022] Figure 2 This is a schematic diagram of the structure of the present invention in its folded state;

[0023] Figure 3 This is a structural diagram of the connection between the upper and lower column rods;

[0024] Figure 4 This is a schematic diagram of the hinge structure;

[0025] Figure 5 This is a schematic diagram of the hinge structure in Embodiment 2;

[0026] Figure 6 This is a schematic diagram of the hinge structure in Embodiment 4;

[0027] In the diagram, 1. Column rod; 2. Scissor-shaped connecting rod; 3. Locking element; 4. Hinge; 11. Upper column rod; 12. Lower column rod; 13. Long screw rod; 14. Nut head; 15. Wing nut; 31. Locking rod; 32. Hook opening; 33. Positioning pin; 41. First part; 42. Second part; 43. Limiting and locking part; 44. Telescopic rod mechanism; 45. Rotating shaft; 411. First bushing; 421. Second bushing; 431. Friction plate; 432. Rotating plate; 441. Telescopic rod; 442. Pulley; 443. Stop end; 444. Steel wire rope; 445. Spring; 446. Guide sleeve; 447. Cantilever end. Detailed Implementation

[0028] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0029] Example 1: A novel anti-passage barrier device, the structure of which is as follows Figures 1 to 4 As shown, the device includes a column rod 1 and a scissor-shaped connecting rod 2. The scissor-shaped connecting rod 2 consists of multiple straight rods, the ends and middle of which are hinged by pins. The two sides of the scissor-shaped connecting rod 2 are slidably mounted on the column rod 1, allowing the two column rods 1 to be folded together or unfolded to act as a passage barrier. A locking element 3 is provided between the two column rods 1 to keep the scissor-shaped connecting rod 2 in the folded state.

[0030] The support rod 1 includes an upper support rod 11 and a lower support rod 12, which are slidably connected to the upper support rod 11 to adjust the height of the support rod 1. Specifically, the lower support rod 12 has a bolt hole, and the upper support rod 11 has an elongated hole extending in the vertical direction. The nut head 14 of the long screw 13 extends into the elongated hole, and the end of the screw extends out of the lower support rod 11. A wing nut 15, which is easy to grip and tighten, is fitted onto the end of the screw. When the wing nut 15 is loosened, the lower support rod 12 can slide relative to the upper support rod 11 to adjust the length of the support rod 1; when the wing nut 15 is tightened, the lower support rod 12 and the upper support rod 11 are pressed together and fixed, thus locking the support rod 1 at the adjusted length.

[0031] The locking component 3 includes a locking rod 31, one end of which is hinged to the right column rod 1, and the other end has a hook opening 32. A positioning pin 33 protrudes from the left column rod 1. The size of the hook opening 32 matches the size of the positioning pin 33 for locking. When the hook opening 32 at the end of the locking rod 31 is hooked onto the positioning pin 32, the distance between the two column rods 1 is locked, and the present invention cannot be unfolded but will be kept in a folded state. When the hook opening 32 at the end of the locking rod 31 is removed from the positioning pin 32, the two column rods 1 are unlocked, and the present invention can be unfolded to achieve the function of blocking passage.

[0032] One of the uprights 1 is equipped with a hinge 4, which is a locking hinge. Specifically, a limiting locking part 43 is provided between the first part 41 and the second part 42 that are in rotational engagement. The function of the limiting locking part 43 is to lock the angle between the first part 41 and the second part 42 at a fixed angle, so that the first part 41 and the second part 42 cannot rotate relative to each other when not unlocked. Furthermore, the end of the other upright 1 is pressed firmly against the ground after height adjustment, preventing the invention from being manually folded or rotated.

[0033] Hinge 4 is used to connect this utility model to a base. The base can be a fixed building or a fixed metal structure at the grain collection and transportation site, or it can be part of this device. It needs to have a certain weight or a structure that can be fixed to the ground, such as a cone-shaped structure that can be driven into the unhardened ground, or a structure with counterweights to make it stand stably on the ground. The first part 41 is used to fix it to the column 1 on the right side, and the second part 42 is used to fix it to the base.

[0034] Both the first part 41 and the second part 42 are fitted onto the rotating shaft 45 via bushing structures machined on them. However, there is a circumferential gap between the first bushing 411 and the second bushing 421. The axial limiting of the bushing and the rotating shaft 45 can be achieved by slotting the rotating shaft 45 and using a spring washer. This part is prior art, so its specific structure is not described in detail in this embodiment. The limiting and locking part 43 includes a friction plate 431 and a rotating plate 432. The rotating plate 432 is hinged to the first part 41, and the friction plate 431 is mounted on the rotating plate 432. The end of the friction plate 431 is arc-shaped to fit into the gap between the first bushing 411 and the second bushing 421. The thickness of the friction plate 431 is consistent with the gap width between the two adjacent bushings. Therefore, after the friction plate 431 extends between the two bushings, it greatly increases the coefficient of friction when the first part 41 and the second part 42 rotate relative to each other, thereby limiting their relative rotation.

[0035] After the first part 41 and the second part 42 are locked by the friction plate 431, the relative angle between this utility model and the base object cannot be changed, thus preventing manual rotation of this utility model. After the friction plate 431 is unlocked, this utility model can rotate relative to the base object to a state close to the base object so as not to affect the passage near the base object.

[0036] In this embodiment, the friction plate 431 includes a rigid layer and elastic layers located on both sides of the rigid layer. When the friction plate 431 is inserted into the gap between two adjacent bushings, the elastic layer will deform. Therefore, after the friction plate 431 is inserted into the bushing gap, a large reverse wrenching force is required to push the friction plate out of the gap.

[0037] Embodiment 2 of this utility model:

[0038] The difference between Embodiment 2 and Embodiment 1 is that the friction plate 431 is rotatably mounted on the rotating plate 432, so the friction plate 431 can be folded up toward the rotating plate 432.

[0039] Hinge 4 also includes a telescopic rod mechanism 44, which includes a telescopic rod 441 movably mounted on the first part 41 and a pulley 442 mounted on the first part 41. A stop end 443 is provided at the first end of the telescopic rod 441, and an overhang end 447 is provided at the other end. The telescopic rod mechanism 44 also includes a steel wire rope 444, one end of which is fixed to the rotating plate 432, and the other end passes over the pulley 442 and is fixed to the stop end 443. A positioning hole is provided on the rightmost straight rod of the scissor-shaped linkage 2, the shape of which matches the shape of the overhang end 447 for insertion. For the specific structure of hinge 4, please refer to the appendix of the instruction manual. Figure 5 .

[0040] In this embodiment, when the hinge 4 is installed, it is fixed to the right column 1 by the left half of the first part 41. The pulley 442 is located to the right of the right column 1, and the telescopic rod 441 is located to the right of the column 1. A through hole is opened on the right column 1. When the telescopic rod 441 extends to the left, the cantilever end 447 passes through the through hole and enters the positioning hole.

[0041] In this structure, when the rotating plate 432 rotates toward the second part 42, the wire rope 444 will pull the stop end 443 toward the scissor-shaped connecting rod 2. While locking the first part 41 and the second part 42, the cantilever end 447 will extend into the positioning hole and limit the position of the end scissor-shaped connecting rod 2 to the lowest position, so that the distance between the two upright rods 1 cannot be changed and is maintained in the fully extended state.

[0042] The working principle of this utility model is described below:

[0043] After placing this utility model in the area requiring anti-penetration protection, first turn the rotating plate 432 to the left to unlock the hinge 4. Simultaneously, pull the cantilever end 447 to the right to disengage it from the positioning hole. Pull the left column rod 1 in the desired direction to open the utility model. Adjust the height of the left column rod 1 so that the lower column rod 12 lands. Then, turn the rotating plate 432 to the right to lock the hinge 4. At the same time, the cantilever end 447 will extend under the action of the steel wire rope 444 and insert into the positioning hole. After the cantilever end 447 enters the positioning hole, the end of the scissor-shaped connecting rod 2 cannot slide up and down, thus preventing the utility model from being folded by human intervention.

[0044] The difference between Embodiment 3 and Embodiment 2 of this utility model is as follows:

[0045] Multiple positioning holes are spaced apart on the straight rod at the far right end of the scissor-shaped connecting rod 2, so this utility model can be extended to different lengths.

[0046] The fourth embodiment of this utility model differs from the second embodiment in that:

[0047] A spring 445 is also fitted onto the telescopic rod 441. The spring 445 is installed between the stop end 443 and the guide sleeve 446. The spring 445 is a tension spring, and its function is to drive the stop end 443 backward to ensure that the cantilever end 447 is in the retracted state under normal conditions. It should be emphasized that after the friction plate 431 is engaged with the two adjacent bushings, the frictional force between the first part 41 and the second part 42 is greater than the elastic force of the spring 445. Therefore, without external force to assist in turning the rotating plate 432 to the left, the spring 445 cannot pull the rotating plate 432, allowing the hinge 4 to remain in the locked state. The specific structure of the hinge 4 is as follows... Figure 6 As shown.

[0048] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims and not by the foregoing description. Thus, all variations falling within the meaning and scope of equivalents of the claims are intended to be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

Claims

1. A novel anti-passing barrier device, characterized by: It includes two upright columns, with a scissor-shaped connecting rod between them. A hinge is installed on the right upright column. The hinge includes a first part, a second part, a rotating shaft, and a limiting locking mechanism. The limiting locking mechanism includes a rotating plate and a friction plate. The first part includes a first bushing, and the second part includes a second bushing. Both the first and second bushings are fitted onto the rotating shaft, and their axial positions are limited. A gap is left between the first and second bushings. The thickness of the friction plate is consistent with the width of the gap between two adjacent bushings. The rotating plate is rotatably mounted on the first or second part. When the rotating plate rotates, it can cause the friction plate to engage in the gap between two adjacent bushings or move the friction plate out of the gap between two adjacent bushings.

2. A new type of anti-passing blocking device according to claim 1, characterized in that: Two first bushings are spaced apart on the first part, and one second bushing is provided on the second part. The second bushing is located between the two first bushings, so there is a gap between the second bushing and the first bushings on both sides. Two sets of friction plates are provided on the rotating plate, and the two sets of friction plates are respectively inserted into the two sets of gaps.

3. A new type of anti-passing blocking device according to claim 1, characterized in that: The friction pad is rotatably mounted on the rotating plate so that it abuts against the surface of the rotating plate after being folded.

4. A new type of anti-passing blocking device according to claim 1, characterized in that: The friction plate includes a rigid layer and elastic layers located on both sides of the rigid layer. When the friction plate enters the gap between the two sets of bushings, the elastic layers will deform to increase the friction between the friction plate and the corresponding bushing.

5. A novel anti-passage blocking device according to claim 1, characterized in that: The height of the column on the left is adjustable.

6. A novel anti-passage blocking device according to claim 5, characterized in that: The left-side column includes an upper column and a lower column. The lower column is slidably connected to the upper column. The lower column has bolt holes, and the upper column has elongated holes extending in the vertical direction. The nut head of the long screw extends into the cavity of the upper column, and the end of the screw extends out of the lower column. A nut is fitted onto the end of the screw.

7. A novel anti-passage barrier device according to claim 1, characterized in that: A locking device is installed between the two uprights. The locking device includes a locking rod. One end of the locking rod is hinged to one of the uprights, and the other end is provided with a hook. A positioning pin protrudes from the other upright. The size of the hook matches the size of the positioning pin to secure it. The length of the locking rod is consistent with the distance between the two uprights after they are folded to maintain the folded state of the scissor-shaped linkage.

8. A novel anti-passage barrier device according to any one of claims 1 to 7, characterized in that: The rotating plate is rotatably mounted on the first part. The hinge also includes a telescopic rod mechanism, which includes a telescopic rod movably mounted on the first part and a pulley mounted on the first part. The first end of the telescopic rod is provided with a stop end, and the other end of the telescopic rod is a cantilever end. The telescopic rod mechanism also includes a steel wire rope, one end of which is fixed to the rotating plate, and the other end is fixed to the stop end after passing over the pulley. The rightmost straight rod of the scissor-shaped connecting rod is provided with a positioning hole, the shape of which matches the shape of the cantilever end for insertion.

9. A novel anti-passage barrier device according to claim 8, characterized in that: The telescopic rod mechanism also includes a spring sleeved on the telescopic rod, the spring being a tension spring and installed between the stop end and the guide sleeve.

10. A novel anti-passage barrier device according to claim 8, characterized in that: Multiple positioning holes are spaced apart on the straight rod at the rightmost end of the scissor-shaped link, so the scissor-shaped link can be extended to different lengths.

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