An adjustable combination curb

Abstract

The utility model discloses an adjustable combined street marker, which comprises a fixing seat, a sliding groove is arranged on one side surface of the fixing seat, a first tooth surface is arranged on the bottom groove surface of the sliding groove, at least one supporting arm is arranged, a sliding block that is matched with the sliding groove is arranged on the end of the supporting arm, a cavity for accommodating a cam part and a sub-sliding block that is pushed out by the cam part rotating in the cavity are arranged in the sliding block, the sub-sliding block is provided with a second tooth surface that is engaged with the first tooth surface, and an upper and lower connecting plate is arranged on the end of the supporting arm that is away from the sliding block. At least one street marker porcelain bottle is fixed between the upper and lower connecting plates through a shaft part. The utility model pushes the sub-sliding block by the cam part to make the second tooth surface engage with the first tooth surface, effectively resists vibration, solves the problem that the bolt is prone to creep relaxation and causes the sliding block to slide down under the working condition that the street marker bears the line self weight, wind vibration and other alternating loads for a long time, and avoids causing the line sag to change.

Description

Technical Field

[0001] This utility model relates to the field of power auxiliary device technology, and in particular to an adjustable combined street code. Background Technology

[0002] Street brackets, as low-voltage line installation devices, play an irreplaceable role in areas with narrow streets, limited space, or densely packed lines in towns and cities. In these situations where traditional concrete poles cannot be erected, street brackets achieve compact line installation by directly fixing them to building walls or other existing structures. Currently, most street brackets on the market adopt a fixed structure, where the support arm and mounting base are integrally formed or fixedly connected by welding. Once installed, the height and angle of the support arm cannot be adjusted. In actual construction, due to differences in street environments, line specifications, and installation requirements, fixed street brackets have poor adaptability, resulting in a large variety of inventory, complex management, and an inability to flexibly cope with complex on-site installation conditions.

[0003] Existing adjustable track clamp solutions, such as those using multiple fixing holes at varying heights on a fixed base, allow for coarse adjustment of the support arm by selecting different hole positions. This multi-hole adjustment method is stepped and discrete, unable to achieve stepless precise height positioning, and thus fails to meet the requirements of refined line installation. The adjustment process requires disassembling bolts and realigning the holes, which is cumbersome, especially inconvenient during high-altitude operations. Some solutions achieve stepless sliding adjustment of the support arm, but the locking reliability of these designs is often insufficient. Common locking methods often use a single bolt for direct tightening, relying solely on the friction between the bolt and the slide rail for fixation. Under long-term conditions where the track clamp bears alternating loads such as the weight of the line and wind vibration, the bolt is prone to creep and loosening, causing the slider to slide down, altering the line sag, and even leading to safety accidents. Therefore, simple friction locking has significant unreliability, weak vibration resistance, and difficulty in ensuring long-term stability. Utility Model Content

[0004] The purpose of this invention is to provide an adjustable combination street code to solve one or more technical problems existing in the prior art, or at least to provide a beneficial option or create conditions.

[0005] To solve the above-mentioned technical problems, the technical solution adopted by this utility model is as follows: This utility model provides an adjustable combination street code, including: The fixed base has a sliding groove on one side, and the bottom surface of the sliding groove has a first toothed surface; At least one support arm, the end of the support arm is provided with a slider that slides in cooperation with the slide groove, the slider is provided with a cavity for accommodating a cam and a sub-slider pushed out by the cam that is rotated in the cavity, the sub-slider is provided with a second tooth surface that meshes with the first tooth surface, and the end of the support arm away from the slider is provided with upper and lower connecting plates. At least one street-sized porcelain bottle is fixed between the upper and lower connecting plates by a shaft.

[0006] This technical solution achieves the dual advantages of rapid stepless adjustment and mechanical self-locking anti-loosening. By pushing the sub-slider through the cam component, the second tooth surface is engaged with the first tooth surface, transforming the traditional friction locking into a more reliable mechanical interlock, effectively resisting vibration. It solves the problem that bolts are prone to creep loosening and sliding down the slider under the long-term alternating loads such as the weight of the line and wind vibration, thus avoiding changes in the sag of the line.

[0007] As a further improvement of this utility model: the slide groove and the slider are T-shaped sliding structures, and the slider and the slide groove have a movable gap in the direction perpendicular to the bottom groove surface.

[0008] After the first tooth surface and the second tooth surface mesh, the two sides of the T-shaped slider and the two sides of the T-shaped groove are in close contact in the direction perpendicular to the bottom groove surface. At this time, in addition to the self-locking force provided by the meshing of the first tooth surface and the second tooth surface, the close contact between the groove and the slider also provides friction between the surfaces, further improving the support performance.

[0009] As a further improvement of this utility model: the cam component is a disc-shaped cam with a first cam portion and a second cam portion symmetrically protruding from both sides. The first cam portion abuts against the back of the sub-slider, and the second cam portion abuts against the bottom cavity surface of the cavity. The symmetrical cam portions on both sides press against the back of the sub-slider and the bottom cavity surface of the cavity respectively, forming a rigid and effective support, so that the first tooth surface and the second tooth surface are always engaged, resulting in a large and stable locking force.

[0010] As a further improvement of this utility model: the bottom cavity surface of the cavity is provided with a concave arc surface, which fits against the outer wheel surface of the second cam part. The junction of the concave arc surface and the bottom cavity surface adopts a circular arc transition, and the circular arc surface is provided with a dead point position when the second cam part rotates into the concave arc surface. When the second cam part rotates into the concave arc surface after passing the dead point position, the cam part is positioned by the concave arc surface, forming an effective support between the back of the sub-slider and the bottom cavity surface of the cavity, and is in a stable mechanical self-locking state.

[0011] As a further improvement of this utility model: the center point of the concave arc surface is on the same horizontal plane as the cam shaft of the cam component. When the second cam part is in contact with the concave arc surface, that is, in the locked position, the contact point between the first cam part and the back of the sub-slider, the cam shaft, and the center point of the concave arc surface are aligned in a straight line, maintaining stable support, making the engagement and self-locking between the first tooth surface and the second tooth surface more reliable and stable.

[0012] As a further improvement of this utility model: an operating handle is provided on one side of the support arm, and the operating handle is connected to the cam shaft of the cam component. The operating handle provides a hands-free operation mode, requiring no additional tools, and the second cam part can be slid into the concave arc surface by rotating the operating handle within 90°, which improves the convenience of adjustment, and is especially suitable for high-altitude operations.

[0013] As a further improvement of this utility model, the bottom of the slide groove is provided with an anti-detachment limiting block. The anti-detachment limiting block prevents the slider from accidentally falling completely off the bottom of the slide groove during installation or maintenance, thereby increasing safety.

[0014] As a further improvement of this utility model: the fixing seat is provided with scale markings on one side of the groove opening of the slide. The scale markings can be used for height preset and alignment. When multiple street codes need to be installed, the spacing and position between all support arms can be clearly obtained, ensuring that the line is neat and beautiful and the construction is standardized.

[0015] As a further improvement of this utility model: the upper and lower connecting plates are U-shaped plates with their openings facing away from the support arm. The street code porcelain bottle is inserted into the opening of the U-shaped plate and connected through the shaft. During installation, the street code porcelain bottle is first placed into the U-shaped plate and then the shaft is inserted, making the operation simple and convenient.

[0016] As a further improvement of this utility model: the upper and lower ends of the fixing base are provided with splicing positioning grooves for alignment and positioning with the splicing positioning groove of another fixing base through pins. The left and right sides of the fixing base are also provided with fixing holes for splicing and / or fixing to the support surface with the fixing holes of another fixing base through fasteners. Multiple fixing bases can be freely combined according to actual usage needs, giving the street code an adjustable combination capability. By splicing multiple fixing bases, more support arms can be accommodated, improving the product's flexibility and scene adaptability. Attached Figure Description

[0017] The present invention will be further described below with reference to the accompanying drawings and embodiments; Figure 1 This is a schematic diagram of the street code structure in an embodiment; Figure 2 This is a schematic diagram of the street code in one view of the embodiment; Figure 3 yes Figure 2 A schematic diagram of the cross-sectional structure along the AA direction; Figure 4 This is a schematic diagram of the structure of the support arm and the street-mounted porcelain bottle.

[0018] In the attached diagram: 100: fixed seat, 110: slide groove, 120: first tooth surface, 130: movement clearance, 140: anti-detachment limit block, 150: scale mark, 160: splicing positioning groove, 170: fixing hole, 200: support arm, 210: slider, 220: cavity, 230: concave arc surface, 240: sub-slider, 250: second tooth surface, 260: upper and lower connecting plates, 270: operating handle, 300: cam component, 310: first cam part, 320: second cam part, 330: camshaft, 400: street code porcelain bottle, 410: shaft component. Detailed Implementation

[0019] This section will describe in detail the specific embodiments of the present utility model. The preferred embodiments of the present utility model are shown in the accompanying drawings. The purpose of the drawings is to supplement the textual description with graphics, so that people can intuitively and vividly understand each technical feature and the overall technical solution of the present utility model, but they should not be construed as limiting the scope of protection of the present utility model.

[0020] In the description of this utility model, it should be understood that the directional descriptions, such as up, down, front, back, left, right, etc., indicate the directional or positional relationship based on the directional 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. Therefore, they should not be construed as limitations on this utility model.

[0021] In the description of this utility model, if there are words such as "several", they mean one or more, "multiple" means two or more, "greater than", "less than", "exceeding" etc. are understood to exclude the number itself, and "above", "below", "within" etc. are understood to include the number itself.

[0022] In the description of this utility model, unless otherwise explicitly defined, terms such as "setting," "installation," and "connection" should be interpreted broadly, and those skilled in the art can reasonably determine the specific meaning of the above terms in this utility model in conjunction with the specific content of the technical solution.

[0023] Reference Figures 1 to 4 The following are several embodiments of an adjustable combined street code of this utility model.

[0024] An embodiment of this utility model provides an adjustable combined street code, such as... Figures 1 to 4 As shown, it includes: The fixed base 100 has a sliding groove 110 on one side, and the bottom groove surface of the sliding groove 110 has a first toothed surface 120. At least one support arm 200, the end of the support arm 200 is provided with a slider 210 that slides in cooperation with the slide groove 110, the slider 210 is provided with a cavity 220 for accommodating a cam 300 and a sub-slider 240 pushed out by the cam 300 that is rotated in the cavity 220, the sub-slider 240 is provided with a second tooth surface 250 that meshes with the first tooth surface 120, and the end of the support arm 200 away from the slider 210 is provided with upper and lower connecting plates 260; At least one street-sized porcelain bottle 400 is fixed between the upper and lower connecting plates 260 by a shaft 410.

[0025] In this embodiment, the first tooth surface is provided with several tooth grooves formed by the concave bottom groove surface, so that the bottom groove surface is flat and does not affect the sliding of the slider part of the support arm. The sub-slider and the cavity are in clearance fit. The rotation of the cam component realizes the ejection of the sub-slider, ensuring that when the cam component rotates, it can provide the sub-slider with sufficient stroke so that the sub-slider can completely disengage from the first tooth surface (for easy sliding) and can be fully pressed into the first tooth surface to achieve a firm engagement.

[0026] During operation, the operator holds the support arm and slides the slider up and down along the groove of the fixed seat. Since the sub-slider does not protrude, it can move freely. In some preferred embodiments, a small compression spring is provided in the cavity, whose force always pushes the sub-slider away from the first tooth surface. When the cam is twisted and released or no force is applied to push the sub-slider out, the spring can automatically help the sub-slider separate from the tooth surface, making the sliding adjustment easier.

[0027] Once the support arm slides to the designated height, the cam component rotates, and the cam portion of the cam component pushes the sub-slider towards the bottom groove surface of the slide, forcing the second tooth surface on the sub-slider to tightly engage with the first tooth surface on the bottom groove surface of the slide. In some preferred embodiments, the tooth profile angle of the first and second tooth surfaces is between 45° and 60°, and the teeth and tooth tips are rounded, allowing the first and second tooth surfaces to have relative adaptive position adjustment when they first contact and engage. Finally, the engagement forms an effective self-locking mechanism. The tooth pitch (distance between adjacent tooth tips) can be designed according to the load-bearing capacity of the code, such as 2mm to 5mm. After the first and second tooth surfaces engage, the downward force generated by the line's own weight and external load will be converted into a force that makes the engagement tighter through the inclined surface of the tooth surfaces.

[0028] This embodiment achieves the dual advantages of rapid stepless adjustment and mechanical self-locking anti-loosening. By pushing the sub-slider through the cam component, the second tooth surface is engaged with the first tooth surface, transforming the traditional friction locking into a more reliable mechanical interlock, effectively resisting vibration. It solves the problem that bolts are prone to creep loosening and sliding down the slider under the long-term alternating loads such as the weight of the line and wind vibration, thus avoiding changes in the sag of the line.

[0029] In an optional embodiment, such as Figure 1 and Figure 4 As shown, the slide groove 110 and the slider 210 are T-shaped sliding structures, and the slider 210 and the slide groove 110 have a movable gap 130 in the direction perpendicular to the bottom groove surface. The movable gap is preferably set at the tooth tip height of the tooth profile in the first tooth surface or the second tooth surface, and this movable gap can ensure smooth sliding.

[0030] In this embodiment, after the support arm slides to a specified height, the cam component is rotated. The cam portion of the cam component pushes the sub-slider towards the bottom groove surface of the slide groove, forcing the second tooth surface on the sub-slider to tightly engage with the first tooth surface on the bottom groove surface of the slide groove. During this process, as the sub-slider is pushed out and the second tooth surface contacts the first tooth surface, the movement gap is compressed. After the first tooth surface and the second tooth surface engage, the top surface of the protruding parts on both sides of the T-shaped slider is in close contact with the bottom surface of the two sides of the groove opening. At this time, in addition to the self-locking force provided by the engagement of the first tooth surface and the second tooth surface, the close contact between the slide groove and the slider also provides friction between the surfaces, further improving the support performance.

[0031] In an optional embodiment, such as Figure 3 As shown, the cam component 300 is a disc-shaped cam with symmetrically protruding first cam portion 310 and second cam portion 320 on both sides. The first cam portion 310 abuts against the back of the sub-slider 240, and the second cam portion 320 abuts against the bottom cavity surface of the cavity 220. The symmetrical cam portions on both sides press against the back of the sub-slider and the bottom cavity surface of the cavity, respectively, forming a rigid and effective support, so that the first tooth surface and the second tooth surface are always engaged, resulting in a large and stable locking force.

[0032] In an optional embodiment, such as Figure 3As shown, the bottom cavity surface of the cavity 220 is provided with a concave arc surface 230. The concave arc surface 230 is in contact with the outer wheel surface of the second cam part 320. The junction of the concave arc surface 230 and the bottom cavity surface adopts a circular arc transition, and the circular arc surface is provided with a dead point position when the second cam part 320 rotates into the concave arc surface 230. The dead point position is a certain position on the circular arc surface. The distance between the dead point position and the cam axis of the cam member is less than the distance between the outermost edge of the second cam part and the cam axis. Before the cam member rotates and slides into the concave arc surface, it has a certain blocking effect on the cam member. However, when the rotational force of the cam member increases, the outer wheel surface of the second cam part can slide past the dead point position and enter the concave arc surface. The positioning of the cam member is achieved by the outer wheel surface of the second cam part and the concave arc surface. At this time, it can ensure that the cam member forms effective support between the back of the sub-slider and the bottom cavity surface of the cavity. When it is necessary to release the engagement between the first and second tooth surfaces, similarly, a larger rotational force of the cam component is used to cause the outer wheel surface of the second cam portion to pass the dead point position, thereby causing the second cam portion to slide out of the concave arc surface and releasing the support between the back of the sub-slider and the bottom cavity surface of the cavity. In some preferred embodiments, the radius of the concave arc surface can be slightly larger than the radius of curvature of the working contour line of the outer wheel surface of the second cam portion to form surface contact and reduce contact stress.

[0033] In this embodiment, when the second cam part moves into the concave arc surface after passing the dead point position, the cam part is positioned by the concave arc surface, forming an effective support between the back of the sub-slider and the bottom cavity surface of the cavity, and is in a stable mechanical self-locking state.

[0034] In an optional embodiment, such as Figure 3 As shown, the center point of the concave arc surface 230 is on the same horizontal plane as the cam shaft 330 of the cam component 300. When the second cam part is in contact with the concave arc surface, that is, in the locked position, the contact point between the first cam part and the back of the sub-slider, the cam shaft, and the center point of the concave arc surface are aligned, maintaining stable support and making the engagement and self-locking between the first tooth surface and the second tooth surface more reliable and stable.

[0035] In an optional embodiment, such as Figures 1 to 4 As shown, an operating handle 270 is provided on one side of the support arm 200, and the operating handle 270 is connected to the cam shaft 330 of the cam component 300. The connection between the cam shaft and the operating handle can be a spline or square shaft fit to prevent relative rotation. This embodiment provides a manual operation method, requiring no additional tools, and the second cam part can be slid into the concave arc surface by rotating the operating handle within 90°, improving the convenience of adjustment, especially suitable for high-altitude operations.

[0036] In an optional embodiment, such as Figure 1As shown, the bottom of the slide rail 110 is provided with an anti-detachment limiting block 140. The anti-detachment limiting block prevents the slider from accidentally falling completely off the bottom of the slide rail during installation or maintenance, thus increasing safety.

[0037] In an optional embodiment, such as Figure 1 As shown, the fixing base 100 has a scale mark 150 on one side of the groove opening of the slide 110. The scale mark can be used for height preset and alignment. When multiple street codes need to be installed, the spacing and position between all support arms can be clearly obtained, ensuring that the line is neat and beautiful and the construction is standardized.

[0038] In an optional embodiment, such as Figure 4 As shown, the upper and lower connecting plates 260 are U-shaped plates with their openings facing away from the support arm 200. The street code porcelain bottle 400 is fitted into the opening of the U-shaped plate and is connected through the shaft 410. During installation, the street code porcelain bottle is first placed into the U-shaped plate and then the shaft is inserted, making the operation simple and convenient.

[0039] In an optional embodiment, such as Figure 1 As shown, the upper and lower ends of the fixed base 100 are provided with splicing positioning grooves 160, which are used to align and position with the splicing positioning grooves 160 of another fixed base 100 through pins. The left and right sides of the fixed base 100 are also provided with fixing holes 170, which are used to splice and combine with the fixing holes 170 of another fixed base 100 through fasteners and / or fix them to the support surface.

[0040] In this embodiment, the upper and lower ends of the fixed base are aligned and positioned using pins. The splicing positioning groove is a rectangular groove. One end of the rectangular pin is inserted into the splicing positioning groove of one fixed base, and the other end is inserted into the splicing positioning operation of another fixed base, so that the sliding grooves of the two fixed bases are aligned. Then, the left and right sides of the two fixed bases are spliced ​​together with fasteners. The fasteners can be connecting pieces with two positioning holes, which are tightened by bolts and nuts to achieve quick positioning. The positioning grooves on both sides of the fixed base are also used for assembly and fixation on the corresponding working wall, platform, or support surface. This embodiment allows multiple fixed bases to be freely combined according to actual usage needs, giving the street code an adjustable combination capability. By splicing multiple fixed bases, more support arms can be accommodated, improving the product's flexibility and scene adaptability.

[0041] The preferred embodiments of the present invention have been described in detail above, but the present invention is not limited to the described embodiments. Those skilled in the art can make various equivalent modifications or substitutions without departing from the spirit of the present invention, and these equivalent modifications or substitutions are all included within the scope defined by the claims of this application.

Claims

1. An adjustable combination street code, characterized in that, include: The fixed base (100) has a sliding groove (110) on one side, and the bottom groove surface of the sliding groove (110) is provided with a first tooth surface (120). At least one support arm (200) is provided at the end of the support arm (200) for sliding with the slide groove (110). The slide block (210) is provided with a cavity (220) for accommodating a cam (300) and a cam (300) rotated in the cavity (220) for pushing a protruding sub-slide block (240). The sub-slide block (240) is provided with a second tooth surface (250) that meshes with the first tooth surface (120). The end of the support arm (200) away from the slide block (210) is provided with upper and lower connecting plates (260). At least one street-sized porcelain bottle (400) is fixed between the upper and lower connecting plates (260) by a shaft (410).

2. The adjustable combined street code according to claim 1, characterized in that: The groove (110) and the slider (210) are T-shaped sliding structures, and the slider (210) and the groove (110) have a movable gap (130) in the direction perpendicular to the bottom groove surface.

3. The adjustable combined street code according to claim 1, characterized in that: The cam component (300) is a disc-shaped cam with a first cam portion (310) and a second cam portion (320) symmetrically protruding on both sides. The first cam portion (310) abuts against the back of the sub-slider (240), and the second cam portion (320) abuts against the bottom cavity surface of the cavity (220).

4. The adjustable combined street code according to claim 3, characterized in that: The bottom cavity surface of the cavity (220) is provided with a concave arc surface (230), which is in contact with the outer wheel surface of the second cam part (320). The concave arc surface (230) and the bottom cavity surface are connected by a circular arc surface transition, and the circular arc surface is provided with a dead point position when the second cam part (320) rotates into the concave arc surface (230).

5. An adjustable combined street code according to claim 4, characterized in that: The center point of the concave arc surface (230) is on the same horizontal plane as the cam shaft (330) of the cam component (300).

6. The adjustable combined street code according to claim 1, characterized in that: The support arm (200) is provided with an operating handle (270) on one side, and the operating handle (270) is connected to the cam shaft (330) of the cam component (300).

7. An adjustable combined street code according to claim 1, characterized in that: The bottom of the slide (110) is provided with an anti-detachment limiting block (140).

8. An adjustable combined street code according to claim 1, characterized in that: The fixing seat (100) has a scale mark (150) on one side of the groove (110).

9. An adjustable combined street code according to claim 1, characterized in that: The upper and lower connecting plates (260) are U-shaped plates with their openings facing away from the support arm (200). The street code porcelain bottle (400) is fitted into the opening of the U-shaped plate and is connected through the shaft (410).

10. An adjustable combined street code according to claim 1, characterized in that: The upper and lower ends of the fixed base (100) are provided with splicing positioning grooves (160) for alignment and positioning with the splicing positioning groove (160) of another fixed base (100) through a pin. The left and right sides of the fixed base (100) are also provided with fixing holes (170) for splicing and / or fixing and assembling with the fixing holes (170) of another fixed base (100) on the support surface through fasteners.

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