Semi-automatic lifting column

Abstract

The utility model relates to the technical field of roadblocks, and discloses a semi-automatic lifting column which comprises an outer cylinder, a bottom plate, a panel, an inner cylinder, a guide column, a locking mechanism and an air spring, the bottom plate is arranged at the bottom of the outer cylinder, the panel is arranged at the top of the outer cylinder, the guide column is installed between the panel and the bottom plate, the inner cylinder is installed on the guide column in a lifting mode and can penetrate out of the panel, and the locking mechanism is arranged on the inner cylinder. The locking mechanism is used for realizing locking after the inner barrel body descends in place and ascends in place; the gas spring is used for controlling the ascending and descending of the inner barrel; wherein a safety column is installed on the bottom plate, the bottom end of the safety column is fixed to the bottom plate, a fixing hole is formed in the top of the safety column, a through hole corresponding to the fixing hole is formed in the top of the inner barrel, and a locking piece penetrates through the through hole to be connected with the fixing hole. And the inner cylinder body and the safety column are locked and fixed. The lifting column has an inner cylinder locking function, is safer to use, and is smoother in surface after being descended in place.

Description

Technical Field

[0001] This utility model relates to the field of road barrier technology, and in particular to a semi-automatic rising bollard. Background Technology

[0002] Semi-automatic rising bollards are roadblock devices that automatically rise and are manually lowered. They do not require the installation of cables and are particularly suitable for areas without power supply, such as fire lanes, parks, pedestrian streets, and access roads within government compounds.

[0003] In the prior art, most common semi-automatic lifting bollard structures are as described in Chinese Utility Model Patent Publication No. CN214939605U, including an outer cylinder, a core base plate, an inner cylinder low flange, an inner cylinder, an outer cylinder panel, and locking pins; the inner cylinder low flange is located above the core base plate, and one or more guide pins are evenly installed on the core base plate, with the guide pins passing through the inner cylinder low flange and mounted on the outer cylinder panel; a guide pin fixing plate is provided below the outer cylinder panel, and the guide pin fixing plate is fixed to one or more guide pins; the outer cylinder panel is provided with... A circular groove is provided, with the inner cylinder fixed above the center of the inner cylinder's lower flange, and the upper end of the inner cylinder passing through the guide post fixing plate and set within the circular groove. A locking groove is provided on the inner cylinder's lower flange, and a through groove is provided on the guide post fixing plate. A rotary switch is provided on one side of the upper part of the outer cylinder panel, and one end of a locking pin is fixed below the rotary switch. The locking pin passes through the through groove of the guide post fixing plate and the locking groove of the inner cylinder's lower flange and is hinged to the movement base plate. A gas spring is installed in the center of the movement base plate, and the other end of the gas spring is fixed to the top of the inner cylinder, controlling the raising and lowering of the inner cylinder. A protrusion is provided at the lower end of the locking pin, and a spring connecting post is provided on one side of the upper part of the movement base plate. A spring is connected to the spring connecting post, and the other end of the spring is fixed to the protrusion at the lower end of the locking pin, providing an automatic locking function.

[0004] During operation, the rotary switch is turned on with a wrench, and external force is applied to lower the column. Once it is in place, an internal spring pulls the locking column to lock the inner cylinder, preventing it from rising. When the rotary switch is turned to a certain angle with a wrench, the inner cylinder can automatically rise and reset under the thrust of the gas spring.

[0005] The existing semi-automatic lifting bollards have the following defects: 1) Due to the single-sided locking mechanism, after the inner cylinder retracts, the side furthest from the locking mechanism will tilt upwards, with the tilt height generally ranging from 2-5mm depending on the assembly clearance. When heavy equipment such as cars frequently pass over the semi-automatic lifting bollard, it can easily cause the locking block and the inner cylinder's low flange to detach, leading to the inner cylinder accidentally rising and causing an accident. 2) The rotary switch is located on the outer cylinder panel. When using a wrench to rotate the switch to unlock, it can easily accidentally hit the operator's hand, posing a safety hazard. 3) The inner cylinder is only positioned by the inner cylinder's low flange and the outer cylinder, resulting in poor inner cylinder stability. After the inner cylinder rises, it is prone to swaying and has poor anti-collision function. Summary of the Invention

[0006] The purpose of this utility model is to provide a semi-automatic lifting column with an inner cylinder locking function that is safer to use, and to provide at least a beneficial option or create conditions for solving one or more technical problems existing in the prior art.

[0007] To achieve the above objectives, the present invention adopts the following technical solution.

[0008] A semi-automatic lifting column includes an outer cylinder, a base plate, a panel, an inner cylinder, a guide column, a locking mechanism, and a gas spring. The base plate is located at the bottom of the outer cylinder, the panel is located at the top of the outer cylinder, the guide column is installed between the panel and the base plate, the inner cylinder is lifted and mounted on the guide column and can pass through the panel, the locking mechanism is used to lock the inner cylinder after it is lowered and raised, and the gas spring is used to control the lifting and lowering of the inner cylinder; wherein, a safety column is installed on the base plate, the bottom end of the safety column is fixed to the base plate, the top of the safety column has a fixing hole, the top of the inner cylinder has a through hole corresponding to the fixing hole, and a locking member passes through the through hole and connects to the fixing hole to lock the inner cylinder and the safety column.

[0009] More preferably, the locking mechanism includes a lock cylinder rod and a lock pin. The lock cylinder rod is rotatably mounted on the inner cylinder and has a latch extending from the inner cylinder. The lock pin is fixedly mounted in the outer cylinder and has an upper latch groove and a lower latch groove corresponding to the latch.

[0010] More preferably, the lock cylinder extends from the bottom of the inner cylinder, and the latch is disposed on the bottom protruding end of the lock cylinder; the lock pin is connected between the base plate and the panel.

[0011] More preferably, the fixing hole at the top of the safety post is a screw hole, and the locking element is a screw or bolt.

[0012] More preferably, a cover plate is provided corresponding to the through hole to cover the lock cylinder.

[0013] More preferably, a lock cylinder rod cover plate is provided corresponding to the lock cylinder rod, which is used to cover the locking component.

[0014] More preferably, two flange rings are provided at the lower end of the inner cylinder, spaced apart vertically, and both flange rings are fitted with the outer cylinder.

[0015] More preferably, a positioning post is provided corresponding to the locking post, the positioning post is installed on the base plate, and the positioning post is provided with a positioning buckle groove corresponding to the lower buckle groove, the lower buckle groove and the positioning buckle groove are respectively fastened to both ends of the lock.

[0016] More preferably, the top end of the positioning post is tapered.

[0017] More preferably, a return spring is also provided on the lock cylinder rod, the return spring giving the lock cylinder rod a return rotation force so that the latch is always pressed against the lock pin.

[0018] The technical solution provided by this utility model has at least the following technical effects or advantages.

[0019] I. The semi-automatic lifting column provided by this utility model, by setting a safety column, can achieve double-sided locking of the inner cylinder by using the locking between the safety column and the inner cylinder, as well as the locking mechanism. After the inner cylinder is lowered and retracted, the surface is flat and without warping. Even if the locking mechanism is disengaged, the inner cylinder will not rise due to the locking action between the safety column and the inner cylinder, thus ensuring good safety.

[0020] Second, since the lock cylinder rod is installed on the inner cylinder, when the switch is turned with a wrench to unlock, the operator's hand will not be accidentally hit by the rising inner cylinder, thus improving safety.

[0021] Third, by providing two flange rings spaced apart at the lower end of the inner cylinder, both flange rings are fitted with the outer cylinder; this can better achieve the positioning between the inner and outer cylinders, improve the lifting stability of the inner cylinder, and make it less prone to shaking and more impact-resistant after the inner cylinder is raised.

[0022] Other beneficial effects or technical advantages of this invention will become more apparent in the following description or practice. Attached Figure Description

[0023] Figure 1 The diagram shown is a structural schematic of the semi-automatic lifting column provided by this utility model.

[0024] Figure 2 The diagram shown is an exploded view of the structure of the semi-automatic lifting column provided by this utility model.

[0025] Figure 3 The diagram shows the internal structure of the inner cylinder.

[0026] Figure 4 As shown Figure 3 A magnified view of a portion of the image.

[0027] Figure 5 The diagram shows the internal structure of the inner cylinder from another perspective.

[0028] Figure 6 As shown Figure 5 Enlarged view of point A.

[0029] Figure 7 The diagram shows the structure after the inner cylinder is raised.

[0030] Explanation of the reference numerals in the attached figures.

[0031] 1: Outer cylinder, 2: Base plate, 3: Panel, 4: Inner cylinder, 5: Guide post, 6: Locking post, 7: Locking cylinder rod, 8: Safety post, 9: Gas spring, 10: Cover plate, 11: Locking cylinder rod cover plate, 12: Flange ring one, 13: Flange ring two, 14: Return spring, 15: Positioning post.

[0032] 6-1: Upper groove; 6-2: Lower groove.

[0033] 7-1: Lock. Detailed Implementation

[0034] The specific embodiments of this utility model will be further described below with reference to the accompanying drawings, making the technical solution and beneficial effects of this utility model clearer and more explicit. The embodiments described below with reference to the accompanying drawings are exemplary and intended to explain this utility model, and should not be construed as limiting this utility model.

[0035] Additional aspects and advantages of this invention will become apparent in the description that follows, or may be learned by practice of this invention.

[0036] Reference Figures 1-7 As shown, a semi-automatic lifting column includes an outer cylinder 1, a base plate 2, a panel 3, an inner cylinder 4, a guide post 5, a locking post 6, a locking cylinder rod 7, a safety post 8, and a gas spring 9. The base plate 2 is installed at the bottom of the outer cylinder 1, the panel 3 is installed at the top of the outer cylinder 1, the guide post 5 is installed between the panel 3 and the base plate 2, the inner cylinder 4 is elliptically mounted on the guide post 5, the locking cylinder rod 7 is rotatably mounted on the inner cylinder 4, and a latch 7-1 extending from the inner cylinder 4 is provided on the locking cylinder rod 7. The locking post 6 is fixedly mounted on the outer cylinder 1. In the cylinder 1, the locking pin 6 is provided with an upper locking groove 6-1 and a lower locking groove 6-2 corresponding to the locking buckle 7-1. The bottom end of the safety pin 8 is fixed to the base plate 2, and the top of the safety pin 8 is provided with a fixing hole. The top of the inner cylinder 4 is provided with a through hole corresponding to the fixing hole. A locking member passes through the through hole and connects to the fixing hole to lock the inner cylinder 4 and the safety pin 8, thereby preventing the side of the inner cylinder 4 away from the locking pin 6 from tilting up. The gas spring 9 is connected between the base plate 2 and the inner cylinder 4 to control the lifting and lowering of the inner cylinder 4.

[0037] Compared with the prior art, the semi-automatic lifting column provided in this embodiment has the following technical advantages: 1) By setting a safety column 8, the inner cylinder 4 is locked on both sides by the locking between the safety column 8 and the inner cylinder 4, and the locking between the latch 7-1 and the lower latch groove 6-2. After the inner cylinder 4 is lowered and retracted, the surface is flat and without warping. Even if the latch 7-1 and the lower latch groove 6-2 are disengaged, the inner cylinder 4 will not rise due to the locking action between the safety column 8 and the inner cylinder 4, thus ensuring good safety. 2) Since the lock cylinder rod 7 is installed on the inner cylinder 4, when the switch is turned with a wrench to unlock, the operator's hand will not be accidentally hit by the rising inner cylinder 4, thus improving safety.

[0038] In this embodiment, the locking element is preferably a screw or bolt, and the fixing hole at the top of the safety post 8 is preferably a screw hole, so as to facilitate locking and fixing after the inner cylinder 4 is lowered and retracted, and to remove and unlock it before it needs to be raised. Preferably, a cover plate 10 is also provided corresponding to the through hole to prevent debris or sewage from entering and affecting the unlocking and locking operations of the screw or bolt.

[0039] Combined Figure 1 As shown, a lock cylinder rod cover plate 11 is provided corresponding to the lock cylinder rod 7 and is rotatably installed to cover the lock cylinder, so as to prevent debris and sewage from entering and affecting the unlocking and locking operations of the lock cylinder.

[0040] Combined Figure 2 , Figure 7 As shown, flange ring 12 and flange ring 13 are provided at the lower end of the inner cylinder 4, which are spaced apart vertically. Both flange ring 12 and flange ring 13 cooperate with the outer cylinder 1. This can better achieve the positioning between the inner cylinder 4 and the outer cylinder 1, improve the stability of the inner cylinder, make it less prone to shaking after the inner cylinder is raised, and provide good anti-collision performance.

[0041] Combination Figure 4 As shown, a positioning post 15 is provided corresponding to the locking post 6. The positioning post 15 is installed on the base plate 2. The positioning post 15 has a positioning groove corresponding to the lower latching groove 6-2. The lower latching groove 6-2 and the positioning groove are respectively engaged with both ends of the latch 7-1. In this way, when the inner cylinder 4 descends and retracts, it can better engage and position the lock cylinder 7, reducing the probability of the lock cylinder 7 accidentally disengaging and rising. In this embodiment, the top end of the positioning post 15 is preferably tapered to facilitate the descent of the latch 7-1 and avoid jamming during descent.

[0042] In this embodiment, a return spring 14 is preferably provided on the lock cylinder rod 7. The return spring 14 provides a return rotation force to the lock cylinder rod 7, thereby keeping the latch 7-1 pressed against the lock post 6. In this way, when the latch 7-1 moves to the position of the upper latch groove 6-1 or the lower latch groove 6-2, it can automatically lock into the corresponding latch groove.

[0043] This embodiment provides a semi-automatic lifting column, the working principle of which is as follows: 1) An internal gas spring is used. After the locking cylinder rod 7 is rotated by a wrench or other tools to disengage the locking buckle 7-1 and the upper locking groove 6-1, external force is applied to lower the inner cylinder 4. After it is lowered to the position, the locking buckle 7-1 automatically engages with the lower locking groove 6-2 under the action of the return spring 14 to lock the lowered position, preventing the inner cylinder 4 from rising. At this time, the side away from the locking cylinder rod 7 will have a certain degree of protrusion due to the lack of locking. 2) The inner cylinder 4 is locked to the safety column 8 with screws or bolts. At this time, the protruding end is also locked, so that the top of the inner cylinder 4 is basically flush with the top of the outer cylinder 1, ensuring the flatness of the lifting column surface after the inner cylinder 4 is lowered. 3) When it is necessary to raise the lifting column, first use a wrench or other tools to remove the screws or bolts, contact the lock between the inner cylinder 4 and the safety column 8, and then use a wrench or other tools to rotate the lock cylinder rod 7 to disengage the lock 7-1 and the lower lock groove 6-2. At this time, the inner cylinder 4 will automatically rise under the thrust of the gas spring 9, raising the lifting column.

[0044] It should also be noted that in the description of this utility model, directional terms such as "center", "horizontal", "longitudinal", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", and "counterclockwise" indicate the orientation and positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model 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. They should not be construed as limiting the specific protection scope of this utility model.

[0045] In this utility model, unless otherwise explicitly specified and limited, the terms "assembly," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can also refer to a mechanical connection; they can refer to a direct connection or a connection through an intermediate medium; or they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0046] In this utility model, unless otherwise specified and limited, "above" or "below" the second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "below," and "over" the second feature includes the first feature being directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Above," "below," and "under" the second feature includes the first feature being directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0047] Based on the above description of the structure and principle, those skilled in the art should understand that this utility model is not limited to the specific embodiments described above. Improvements and substitutions made using techniques known in the art based on this utility model all fall within the protection scope of this utility model, which should be defined by the claims and their equivalents. Parts not described in the specific embodiments are all prior art or common knowledge.

Claims

1. A semi-automatic lifting column, comprising an outer cylinder (1), a base plate (2), a panel (3), an inner cylinder (4), a guide column (5), a locking mechanism, and a gas spring (9), wherein the base plate (2) is disposed at the bottom of the outer cylinder (1), the panel (3) is disposed at the top of the outer cylinder (1), the guide column (5) is installed between the panel (3) and the base plate (2), the inner cylinder (4) is jacked up and jacked up on the guide column (5) and can pass through the panel (3), the locking mechanism is used to lock the inner cylinder (4) after it is lowered into position and raised into position, and the gas spring (9) is used to control the lifting and lowering of the inner cylinder (4); characterized in that, A safety post (8) is installed on the base plate. The bottom end of the safety post (8) is fixed to the base plate (2). The top of the safety post (8) is provided with a fixing hole. The top of the inner cylinder (4) is provided with a through hole corresponding to the fixing hole. A locking member passes through the through hole and connects to the fixing hole to achieve the locking and fixing of the inner cylinder (4) and the safety post (8).

2. The semi-automatic rising bollard according to claim 1, characterized in that, The locking mechanism includes a lock cylinder rod (7) and a lock pin (6). The lock cylinder rod (7) is rotatably mounted on the inner cylinder (4). A latch (7-1) extending from the inner cylinder (4) is provided on the lock cylinder rod (7). The lock pin (6) is fixedly mounted in the outer cylinder (1). An upper latch groove (6-1) and a lower latch groove (6-2) corresponding to the latch are provided on the lock pin (6).

3. A semi-automatic rising bollard according to claim 2, characterized in that, The lock cylinder rod (7) extends from the bottom of the inner cylinder (4), and the latch (7-1) is provided on the bottom protruding end of the lock cylinder rod (7); the lock pin (6) is connected between the bottom plate (2) and the front panel (3).

4. A semi-automatic rising bollard according to claim 1, characterized in that, The fixing hole at the top of the safety post (8) is a screw hole, and the locking element is a screw or bolt.

5. A semi-automatic rising bollard according to claim 1, characterized in that, A cover plate (10) is provided corresponding to the through hole to cover the lock cylinder.

6. A semi-automatic rising bollard according to claim 2, characterized in that, A lock cylinder cover plate (11) is provided corresponding to the lock cylinder rod and is rotatably mounted to cover the locking component.

7. A semi-automatic rising bollard according to claim 1, characterized in that, Two flange rings are provided at the lower end of the inner cylinder, spaced apart vertically, and both flange rings mate with the outer cylinder.

8. A semi-automatic rising bollard according to claim 2, characterized in that, A positioning post (15) is provided corresponding to the locking post (6). The positioning post (15) is installed on the base plate (2). The positioning post (15) is provided with a positioning buckle groove corresponding to the lower buckle groove (6-2). The lower buckle groove (6-2) and the positioning buckle groove are respectively fastened to both ends of the lock (7-1).

9. A semi-automatic rising bollard according to claim 8, characterized in that, The top of the positioning post (15) is tapered.

10. A semi-automatic rising bollard according to claim 2, characterized in that, A return spring (14) is also provided on the lock cylinder rod. The return spring (14) gives the lock cylinder rod (7) a return rotation force so that the latch (7-1) is always pressed against the lock post (6).

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