Handrail pipe connecting assembly and handrail

Abstract

The utility model discloses a handrail pipe connecting assembly and a handrail, the handrail pipe connecting assembly comprises a handrail pipe connecting assembly, a first connecting piece and a second connecting piece, the first connecting piece is provided with at least one first guide surface, the second connecting piece is provided with a connecting groove, and the inner wall of the connecting groove is provided with at least one second guide surface; the at least one first guide face is in sliding fit with the at least one second guide face so as to guide the first connecting piece to be embedded into the connecting groove and be in tight fit with the connecting groove. The handrail comprises a plurality of handrail pipes and the connecting assemblies, the number of the connecting assemblies is multiple, and every two adjacent handrail pipes are connected through one connecting assembly. The adjacent handrail pipes are connected through the first connecting pieces and the second connecting pieces, due to sliding fit of the first guiding faces and the second guiding faces, the first connecting pieces are embedded into the connecting grooves, and along with advancing in the embedding process, the two guiding faces extrude each other to form a tight fit state. In this way, the probability that the handrail pipe is loosened after being stressed can be reduced.

Description

Technical Field

[0001] This utility model relates to the field of handrail technology, and in particular to a handrail tube connecting component and a handrail. Background Technology

[0002] Existing handrails are typically assembled from multiple handrail tubes. A circular connector is attached to one tube and inserted into another, achieving the connection. While this assembly method is simple and convenient, the lack of clear positioning and restraint between the circular surfaces of the connector and the inner wall of the handrail tube makes it prone to rotation around the axis or sliding axially when subjected to external forces. This can lead to slippage or displacement, and over time, connection failure, resulting in a loose handrail and affecting subsequent use. Utility Model Content

[0003] In order to overcome at least one of the defects of the prior art, one of the objectives of this utility model is to provide a handrail tube connecting assembly, which guides the first connecting member and the second connecting member to fit tightly through the sliding engagement of at least one first guiding surface and at least one second guiding surface.

[0004] The second objective of this utility model is to provide a handrail in which multiple handrail tubes are connected by multiple connecting components, making the connection more secure and reducing the probability of loosening under stress.

[0005] One of the objectives of this utility model is achieved through the following technical solution:

[0006] A handrail tube connection assembly includes: a first connector and a second connector. The first connector has at least one first guide surface, and the second connector has a connection groove. The inner wall of the connection groove has at least one second guide surface. At least one first guide surface and at least one second guide surface are slidably engaged to guide the first connector to be inserted into the connection groove and tightly fitted.

[0007] Furthermore, the first connector is provided with three first guide surfaces, which are interconnected in the circumferential direction of the first connector; the inner wall of the connecting groove is provided with three second guide surfaces, which are respectively arranged corresponding to the three first guide surfaces and are slidably engaged; the first guide surfaces and the second guide surfaces are both inclined surfaces.

[0008] Furthermore, every two adjacent first guide surfaces are connected by an arc surface; every two adjacent second guide surfaces are connected by an arc surface.

[0009] Furthermore, the first connector includes a connecting section and a locking section, the first guide surface is disposed on the locking section and is used to guide the locking section to extend into or retract from the connecting groove; the connecting section is used to abut against the end face of the second connector after the locking section extends into the connecting groove.

[0010] Furthermore, the locking section is provided with an elastic component, which provides an elastic stress after the locking section extends into the connecting groove to drive the locking section to fit tightly against the groove wall of the connecting groove.

[0011] Furthermore, the locking section is provided with a first clearance groove, which extends circumferentially along the locking section; the connecting section is provided with a second clearance groove, which extends circumferentially along the connecting section.

[0012] The technical solution adopted for the second objective of this utility model is:

[0013] A handrail includes a plurality of handrail tubes and a connecting assembly, wherein there are multiple connecting assemblies and each pair of adjacent handrail tubes is connected via one of the connecting assemblies.

[0014] Furthermore, it also includes at least one locking assembly, which includes a locking member, a locking ring, and a locking seat. The locking member has a first end and a second end. The first end is connected to at least one of the handrail tubes, and the second end is threadedly engaged with the locking ring. The locking ring is rotatably connected to the locking seat and is used to guide the second end to move axially toward the locking seat during rotation, so as to lock the handrail tube to the locking seat.

[0015] Furthermore, the locking ring has a through groove, which has a first groove segment and a second groove segment. The first groove segment is used to pass through the second end; the second groove segment communicates with the first groove segment; the locking seat is provided with a connecting post, which passes through the second groove segment; the second end is used to press against the connecting post when the locking ring rotates.

[0016] The inner wall of the second groove section is provided with a protruding strip, which extends circumferentially along the second groove section. The outer periphery of the connecting column is provided with a first pressing surface, which extends circumferentially along the connecting column and is used to abut against the outer periphery of the protruding strip when the connecting column is subjected to force, so as to press the protruding strip. The protruding strip is used to press the locking seat when it is pressed.

[0017] Furthermore, the protruding strip is provided with a second pressing surface, which abuts against the first pressing surface and is used to press the protruding strip when it is pressed.

[0018] The locking assembly also includes a protective sleeve, which covers the outer periphery of the locking seat and is threadedly connected to the peripheral wall of the locking seat.

[0019] Furthermore, the plurality of handrail tubes include at least one bend and at least two vertical tubes, and each pair of adjacent vertical tubes and the bend are detachably connected via the connecting assembly, so that the vertical tubes and the bend are connected in a first use state, or disconnected in a second use state.

[0020] In summary, the handrail tube connecting assembly and handrail provided by this utility model have the following technical effects: adjacent handrail tubes are connected by the connecting assembly. Since the first connecting member has a first guide surface, and the second connecting member has a corresponding connecting groove with a second guide surface, during installation, the first connecting member is embedded into the connecting groove through the sliding fit between the first and second guide surfaces. As the embedding process progresses, the two guide surfaces press against each other to form a tight fit. This reduces the probability of the handrail tube loosening under stress, improving the overall stability and reliability of the handrail. Attached Figure Description

[0021] To more clearly illustrate the technical solutions in the embodiments of this utility model, the drawings used in the embodiments 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.

[0022] Figure 1 This is an assembly cross-sectional view of the handrail tube and connecting components in this utility model;

[0023] Figure 2 This is a utility model Figure 1 A magnified view of a portion of the image;

[0024] Figure 3 This is an exploded view of the connecting components in this utility model;

[0025] Figure 4 This is a schematic diagram of the structure of the first connector in this utility model;

[0026] Figure 5 This is an exploded view of the locking component in this utility model;

[0027] Figure 6 This is a cross-sectional view of the locking component after it is connected to the handrail tube in this utility model;

[0028] Figure 7 This is a schematic diagram of the locking ring structure in this utility model;

[0029] Figure 8This is a diagram showing one usage state of the handrail in this utility model;

[0030] Figure 9 This is a diagram showing another usage state of the handrail in this utility model.

[0031] Explanation of key figure labels:

[0032] 10. First connector; 11. Connecting section; 111. Second clearance groove; 12. Locking section; 121. First guide surface; 122. Elastic component; 123. First clearance groove; 20. Second connector; 21. Connecting groove; 30. Handrail tube; 31. Vertical tube; 32. Bend; 40. Locking assembly; 41. Locking component; 411. First end; 412. Second end; 42. Locking ring; 421. Through groove; 4211. First groove section; 4212. Second groove section; 4213. Protruding strip; 43. Locking seat; 431. Connecting column; 4311. First top pressure surface; 44. Protective sleeve; 50. Adhesive process rib. Detailed Implementation

[0033] 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.

[0034] In this invention, the terms "upper," "lower," "left," "right," "front," "rear," "top," "bottom," "inner," "outer," "middle," "vertical," "horizontal," "lateral," and "longitudinal" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. These terms are primarily for the purpose of better describing this invention and its embodiments, and are not intended to limit the indicated device, element, or component to having a specific orientation, or to be constructed and operated in a specific orientation.

[0035] Furthermore, in addition to indicating direction or positional relationship, some of the aforementioned terms may also have other meanings. For example, the term "above" may also be used in some cases to indicate a certain dependency or connection relationship. Those skilled in the art can understand the specific meaning of these terms in this utility model according to the specific circumstances.

[0036] Furthermore, the terms "installation," "setup," "equipped with," "connection," and "linked" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral structure; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium, or an internal connection between two devices, components, or parts. Those skilled in the art can understand the specific meaning of these terms in this utility model based on the specific circumstances.

[0037] Furthermore, the terms "first," "second," etc., are primarily used to distinguish different devices, elements, or components (which may be the same or different in specific type and construction), and are not intended to indicate or imply the relative importance or quantity of the indicated devices, elements, or components. Unless otherwise stated, "a plurality of" means two or more.

[0038] The technical solution of this utility model will be further described below with reference to the embodiments and accompanying drawings.

[0039] Example 1,

[0040] Please see Figures 1 to 9 A handrail tube 30 connecting assembly includes a first connector 10 and a second connector 20. The first connector 10 is provided with at least one first guide surface 121, and the second connector 20 is provided with a connecting groove 21. The inner wall of the connecting groove 21 has at least one second guide surface. The at least one first guide surface 121 and the at least one second guide surface slide in cooperation to guide the first connector 10 to be inserted into the connecting groove 21 and tightly fitted.

[0041] Based on the above structure, taking the first guide surface 121 and the second guide surface as two mutually mating components as an example, during assembly, when the first connector 10 extends into the connecting groove 21, and when the first connector 10 is embedded into the connecting groove 21 along the first guide surface 121 (i.e., the inclined plane), the external force will cause the first guide surface 121 and the second guide surface to exert a mutual squeezing force. This external force can be decomposed into two components: one perpendicular to the inclined plane and one parallel to the inclined plane. The component perpendicular to the inclined plane will generate greater pressure between the two inclined planes, thereby increasing the friction between them. The increase in friction can effectively prevent the first connector 10 from coming out of the connecting groove 21, making the connection more secure.

[0042] As the first connector 10 is continuously embedded, the compressive force between the first guide surface 121 and the second guide surface (i.e., the two inclined surfaces) will continuously increase. This is because the increased embedding depth leads to an increased contact area between the inclined surfaces. At the same time, the component force perpendicular to the inclined surfaces will also increase with the change in embedding angle and depth, further enhancing the tightness of the connection. In this way, the probability of the handrail tube 30 loosening after being subjected to force can be reduced, thereby improving the stability and reliability of the entire handrail.

[0043] Of course, in this embodiment, the first guide surface 121 can also be a conical surface formed on the outer surface of the first connector 10, and the second guide surface can also be a conical surface formed in the connecting groove 21. In this case, the connecting groove 21 can be designed as a conical groove. Thus, when the first connector 10 is inserted into the connecting groove 21, the contact area between the first guide surface 121 (conical surface) and the second guide surface is large, and the contact area will continue to increase as the embedding depth increases. This significantly increases the friction between the first connector 10 and the second connector 20. The increase in friction can effectively prevent the first connector 10 from coming out of the connecting groove 21, thus improving the stability of the connection.

[0044] Thus, when the handrail tube 30 is subjected to axial tension or compression, the interaction between the two conical surfaces will generate a component force perpendicular to the conical surfaces. This component force will cause the two conical surfaces to fit together more tightly, thereby increasing the axial load-bearing capacity of the connection. At the same time, the shape of the conical surfaces can also effectively convert the axial force into radial force, further enhancing the stability of the connection and reducing the probability of the first connector 10 and the second connector 20 loosening under stress.

[0045] Specifically, compared to the contact between two circular surfaces, when a circular surface is subjected to force, the force transmission is relatively concentrated at the contact point or along the contact line, making it difficult to effectively disperse the external force. When subjected to an external force perpendicular to the connection direction, the circular surface is prone to relative sliding, thus making the connection easy to loosen. Therefore, in this embodiment, by setting the first guide surface 121 and the second guide surface as inclined surfaces or conical surfaces, when subjected to external force, both inclined surfaces and conical surfaces can decompose the external force into forces in multiple directions. Taking the conical surface as an example, when an external force perpendicular to the connection direction is applied, the conical surface will convert part of the force into a component force along the conical surface, causing the first connector 10 to tend to further embed into the connection groove 21, thereby increasing the tightness of the connection. Inclined surfaces also have a similar effect, dispersing external force into multiple directions, avoiding excessive force in a single direction that could lead to connection failure, thus making the connection more secure and less prone to loosening under stress.

[0046] More specifically, when the first guide surface 121 and the second guide surface are each set to one, the first connector 10 can be a conical connector, in which case its outer conical surface is formed as the first guide surface 121. Similarly, the connecting groove 21 in the second connector 20 is a conical groove, so that its inner wall is formed as a conical second guide surface.

[0047] When there are two or more first guide surfaces 121 and second guide surfaces, the first connector 10 can be formed as a trapezoidal block with two inclined surfaces, a triangular block with three inclined surfaces, or other irregularly shaped blocks (such as wedge blocks) with more inclined surfaces on the outside. The multiple inclined surfaces on the outside form multiple first guide surfaces 121. At the same time, the connecting groove 21 is correspondingly set as a trapezoidal groove or a triangular groove, so that the multiple inclined surfaces on its inner wall form multiple second guide surfaces. The multiple second guide surfaces (inclined surfaces) can constrain the first guide surface 121 (inclined surface) from different directions, so that after the first connector 10 is embedded, it can better resist external forces from different directions. Especially when the handrail tube 30 may be subjected to lateral forces or torques, the stability of the connection is effectively improved.

[0048] Preferably, in this embodiment, the first connector 10 is provided with three first guide surfaces 121, which are connected to each other in the circumferential direction. The inner wall of the connecting groove 21 is provided with three second guide surfaces, which are correspondingly arranged with the three first guide surfaces 121 and are slidably engaged. Specifically, the first guide surface 121 and the second guide surface are inclined surfaces.

[0049] Specifically, based on the fact that the first guide surface 121 and the second guide surface are inclined surfaces, the contact area between the first connector 10 and the inner wall of the connecting groove 21 is greatly increased by the cooperation of three interconnected first guide surfaces 121 (inclined surfaces) and the corresponding second guide surfaces (inclined surfaces). This makes the first connector 10 distributed circumferentially, which can constrain the first connector 10 from multiple directions. In this way, when the handrail tube 30 is subjected to external forces in different directions, each inclined surface can play a role in resisting the external forces, preventing the first connector 10 from loosening or displacing, and ensuring the reliability of the connection.

[0050] Furthermore, every two adjacent first guide surfaces 121 are connected by an arc surface, and every two adjacent second guide surfaces are connected by an arc surface.

[0051] Specifically, if the three first guide surfaces 121 or the three second guide surfaces are directly connected, a sharp angle will be formed at the direct connection of the inclined surfaces. Stress concentration is likely to occur at these angles. When the first connector 10 or the second connector 20 is subjected to external force, the stress will accumulate at these sharp angles, resulting in excessive local stress. This increases the risk of deformation, cracking or even breakage of the connector, and reduces the stability and service life of the connection structure.

[0052] Therefore, in this embodiment, every two adjacent first guide surfaces 121 and every two adjacent second guide surfaces are connected by an arc surface, which provides a smoother transition for the sliding of the first connector 10 within the connecting groove 21. During installation or use, when the first connector 10 slides along the arc surface, the change in friction is more gradual, and there will be no jamming or abrupt changes caused by direct connection of inclined surfaces, making the sliding process smoother. This not only facilitates installation operations but also reduces wear and noise caused by uneven friction during use.

[0053] Furthermore, the first connector 10 includes a connecting section 11 and a locking section 12. A first guide surface 121 is disposed on the locking section 12 and guides the locking section 12 to extend into or exit the connecting groove 21. After the locking section 12 extends into the connecting groove 21, the connecting section 11 abuts against the end face of the second connector 20.

[0054] Specifically, the connecting section 11 can be used to connect with a pipe section, while the locking section is used to connect with the second connector 20. By setting the first guide surface 121 on the locking section 12, the locking section 12 can be guided to accurately extend into the connecting groove 21 during installation, providing guidance for the installation process, reducing installation difficulty, and improving installation efficiency. Installers can more easily align and insert the first connector 10 into the connecting groove 21, reducing the number of adjustments and trial and error attempts during the installation process.

[0055] Furthermore, since the connecting segment 11 abuts against the end face of the second connector 20 after the locking segment is inserted into the connecting groove 21, the contact area between the first connector 10 and the second connector 20 is further increased. Thus, when the entire structure is subjected to external force, the connecting segment 11 can also share the force borne by the locking segment 12, which can better transmit and disperse the force, reduce local stress concentration, and improve the overall strength and stability of the connection structure.

[0056] More specifically, the locking section 12 is also provided with an elastic component 122. After the locking section 12 extends into the connecting groove 21, the elastic component 122 provides an elastic stress to drive the locking section 12 to tightly fit with the groove wall of the connecting groove 21. In this way, the elastic stress provided by the elastic component 122 ensures a tight fit between the locking section 12 and the groove wall of the connecting groove 21, effectively preventing gaps between them, avoiding loosening of the connector due to external forces such as vibration and impact, and improving the stability of the structure.

[0057] Furthermore, a first clearance groove 123 is provided on the locking section 12, and the first clearance groove 123 extends circumferentially along the locking section 12; a second clearance groove 111 is provided on the connecting section 11, and the second clearance groove 111 extends circumferentially along the connecting section 11.

[0058] Specifically, during setup, the first clearance groove 123 is located at one end of the locking section 12 near the connecting section 11. Thus, when the locking section 12 is embedded in the connecting groove 21, if there are minor unevenness or protrusions on the end wall of the connecting groove 21 due to process errors, the irregular part can be filled into the first clearance groove 123 due to the presence of the first clearance groove 123, so that the locking section 12 fits better with the inner wall of the connecting groove 21.

[0059] Similarly, if the connecting section 11 is connected to the pipe section, and there are irregularities on the surface of the pipe section due to the process, the presence of the second clearance groove 111 will allow the connecting section 11 and the pipe section to fit together better.

[0060] Example 2,

[0061] A handrail includes a plurality of handrail tubes 30 and connecting components, wherein each pair of adjacent handrail tubes 30 is connected by a connecting component.

[0062] Based on this structure, during assembly, the first connector 10 can be connected to one of the handrail tubes 30, while the second connector 20 can be connected to another handrail tube 30 to be joined. Since the first connector 10 has a first guide surface 121 that is either inclined or conical, and the connecting groove 21 has a second guide surface (such as an inclined or conical surface) that matches the first guide surface 121, when the handrail tube 30 is subjected to external force, both the inclined and conical surfaces can decompose the external force into forces in multiple directions. Taking the conical surface as an example, when an external force perpendicular to the connection direction is applied, the conical surface will convert a portion of the force into a component force along the conical surface, causing the first connector 10 to tend to further embed into the connecting groove 21, thereby increasing the tightness of the connection. The inclined surface also has a similar effect, dispersing the external force into multiple directions and preventing excessive force in a single direction from causing connection failure. Therefore, the connection between two adjacent handrail tubes 30 is more secure and less prone to loosening under stress, making the handrail in this embodiment more reliable and stable during use.

[0063] It should be noted that in this embodiment, the connecting component can be set to one, two or more, depending on the actual number of handrail tubes 30 to be spliced.

[0064] In addition, in this embodiment, the first connector 10 and the second connector 20 can be connected to the inner wall of the handrail tube by gluing. Since the first connector 10 is provided with a first clearance groove 111 and a second clearance groove 121, during assembly, the glue can flow along the outer peripheral wall of the first connector 10 into the first clearance groove 111 or the second clearance groove 122. After the glue flows into the clearance groove, it can fill more space and form more glued parts, making the connection between the first connector 10 and the inner wall of the handrail tube more secure.

[0065] Specifically, in actual production, there may be some dimensional errors between the first connector 10 and the handrail tube 30. Since the first or second clearance groove can hold a certain amount of glue, when the glue flows into the first or second clearance groove and cures, it can compensate for these dimensional errors to a certain extent, making the fit between the connector and the handrail tube tighter and more uniform, thus improving the assembly quality.

[0066] More specifically, in this embodiment, both the first connector 10 and the second connector 20 are provided with adhesive process ribs 50 (e.g., ...). Figure 3 As shown, the adhesive bonding process rib 50 increases the surface roughness and surface area of ​​both the first and second connectors. During bonding, the adhesive adheres better to the adhesive bonding process rib, thereby increasing the contact area between the adhesive and the connectors. A larger contact area means that more bonding points can be formed between the adhesive and either the first or second connector, resulting in a stronger bond and improved connection strength and stability.

[0067] Furthermore, it also includes at least one locking assembly 40, which includes a locking member 41, a locking ring 42, and a locking seat 43. The locking member 41 has a first end 411 and a second end 412. The first end 411 is connected to at least one of the handrail tubes 30, and the second end 412 is threadedly engaged with the locking ring 42. The locking ring 42 is rotatably connected to the locking seat 43, and when rotated, it guides the second end 412 to move along its own axial direction toward the locking seat 43 so that the handrail tube 30 is locked to the locking seat 43.

[0068] Specifically, since multiple handrail tubes 30 may have a certain length after being spliced ​​together, a locking assembly can be used to install the handrail tube 30 located in the middle position onto an external structure, such as a wall. During installation, firstly, the first end 411 of the locking member 41 is connected to the handrail tube 30, and the second end 412 is embedded into the locking ring 42. Then, the locking ring 42 is rotated. Since the second end 412 of the locking member 41 and the locking ring 42 are threadedly engaged, the rotating locking ring 42 will cause the second end 412 of the locking member 41, which is threadedly connected to it, to move along its own axial direction, thereby guiding the second end 412 of the locking member 41 towards the locking seat 43, so that the handrail tube 30 is locked to the locking seat 43. Then, the locking seat 43 is connected to the external structure, so that the multiple spliced ​​handrail tubes 30 are reliably fixed in the middle position, effectively reducing the risk of the handrail tubes 30 shaking, shifting, or falling off during use, and ensuring the stability and safety of the handrail structure.

[0069] Furthermore, the locking element 41 is first connected to the handrail tube 30 and the locking ring 42, and then the locking ring 42 is rotated to achieve locking. This operation method is relatively simple and convenient. Moreover, since the position of the locking element 41 is adjusted by threaded engagement, the degree of locking between the handrail tube 30 and the locking seat 43 can be effectively controlled. Fine adjustments can be made according to the actual situation to adapt to different installation environments and dimensional differences after the handrail tube 30 is spliced.

[0070] Furthermore, the locking ring 42 has a through groove 421, which has a first groove segment 4211 and a second groove segment 4212. The first groove segment 4211 is used to pass through the second end 412; the second groove segment 4212 is in communication with the first groove segment 4211; the locking seat 43 is provided with a connecting post 431, which passes through the second groove segment 4212; the second end 412 presses against the connecting post 431 when the locking ring 42 rotates. The inner wall of the second groove section 4212 is provided with a protruding strip 4213, which extends circumferentially along the second groove section 4212. The outer periphery of the connecting column 431 is provided with a first pressing surface 4311, which extends circumferentially along the connecting column 431 and abuts against the outer periphery of the protruding strip 4213 when the connecting column 431 is under force, so as to press the protruding strip 4213. When the protruding strip 4213 is pressed, it presses the locking seat 43.

[0071] Based on this structure, taking the first pressing surface 4311 and the second pressing surface as inclined planes as an example, during installation, the second end 412 passes through the first groove 4211, and the connecting post 431 passes through the second groove 4212. When the locking ring 42 is rotated until the second end 412 of the locking member 41 presses against the connecting post 431, the connecting post 431 transmits the force it receives to the protruding strip 4213. Since the first pressing surface 4311 and the protruding strip 4213 are inclined, the force received by the connecting post 431 will generate a component force in the inclined direction. This component force causes the protruding strip 4213 to displace along the inclined direction, thereby enabling the locking ring 42 to press the locking seat 43 in a direction away from the handrail tube 30. At the same time, the reaction force perpendicular to the inclined plane received by the protruding strip 4213 will also act on the connecting post 431, forming a stable force transmission and balance system, making the connection between the handrail tube 30 and the locking seat 43 more secure.

[0072] Compared to the direct threaded connection between the second end 412 and the locking ring 42, adjusting the tightness often requires rotating the entire threaded component to achieve a significant adjustment, making fine-tuning difficult. Therefore, in this embodiment, the connecting post 431 and the protruding strip 4213 engage with a beveled surface. Even with slight rotation of the locking ring 42, the beveled surface can control the pressure of the protruding strip 4213 on the locking seat 43, enabling fine adjustment of the locking force between the handrail tube 30 and the locking seat 43. This better adapts to different installation requirements and usage scenarios.

[0073] In practical use, when it is necessary to flexibly adjust the locking force according to different installation positions, angles or different external forces on the handrail tube 30, simply rotate the locking ring 42 slightly to change the pressure of the protruding strip 4213 on the locking seat 43 through the action of the inclined surface. This eliminates the need for repeated disassembly and adjustment of the entire connecting component as with a direct threaded connection, making the operation more flexible.

[0074] It should be noted that the through groove 421 can be a threaded groove, and the second end 412 is provided with a thread that mates with the threaded groove so that the second end 412 mates with the locking ring 42.

[0075] In addition, the protruding strip 4213 in this embodiment can be a protruding block or a protruding rib integrally formed in the through groove 421; and the first pressing surface 4311 can be a slope or an arc surface. By contacting the protruding strip 4213 with the arc surface, point or line contact can be formed, which can make the force distribution more uniform to a certain extent, reduce the local stress concentration, reduce the wear on the protruding strip 4213 and the connecting column 431, and extend the service life.

[0076] Furthermore, the protruding strip 4213 is provided with a second pressing surface, which abuts against the first pressing surface 4311 and presses against the protruding strip 4213 when pressed; the locking assembly 40 also includes a protective sleeve 44, which covers the outer periphery of the locking seat 43 and is threadedly connected to the peripheral wall of the locking seat 43.

[0077] Based on this structure, taking the second top pressure surface as an example, the second top pressure surface abuts against the first top pressure surface 4311 on the connecting column 431. The cooperation between the two can better control the pressure on the protruding strip 4213. By adjusting the contact angle and area of ​​the two top pressure surfaces, the top pressure on the protruding strip 4213 under different rotation angles can be adjusted, thereby better adjusting the locking force of the locking ring 42. This ensures that the connection between the handrail tube 30 and the locking seat 43 can achieve the required tightness without damaging the components due to excessive pressure.

[0078] In addition, the presence of the second top pressure surface increases the contact area and the stability of force transmission between the connecting post 431 and the protruding strip 4213. When subjected to external impact or vibration, the larger contact area and the more stable force transmission method can better disperse the external force, reduce the situation of excessive local stress, reduce the risk of loosening or damage of the connecting parts, thereby enhancing the stability and reliability of the entire locking structure.

[0079] More specifically, during assembly, the locking sleeve can be fitted around the outer periphery of the locking member 41 or the locking ring 42. After the locking member 41, the locking ring 42, and the locking seat 43 are connected, the locking sleeve is connected to the external thread of the locking seat 43 so that the locking sleeve covers the joint between the locking ring 42 and the locking seat 43, enclosing the connection part and protecting it from external environmental factors such as dust, moisture, and oil. This prevents these impurities from entering the connection gap and avoids problems such as wear, corrosion, or jamming caused by the accumulation of impurities, thereby extending the service life of the connecting parts.

[0080] Furthermore, the plurality of handrail tubes 30 include at least one bend 32 and at least two vertical tubes 31, and each pair of adjacent vertical tubes 31 and bend 32 are detachably connected via a connecting assembly so that the vertical tubes 31 and bend 32 are connected in a first use state or disconnected in a second use state.

[0081] Specifically, in practical applications, due to the different spatial layouts and usage requirements of different locations, the methods of combining handrails vary. For example, in environments without corners, multiple vertical tubes 31 can be spliced ​​together using connecting components to allow the handrail to be used in a second state, forming something like... Figure 9 The long, narrow handrail shown; however, at stair corners, at the end of corridors, or in areas with unusual terrain, the bend 32 can be connected to the vertical pipe 31 via a connecting assembly to form a shape like... Figure 8 The first usage state shown allows for flexible adjustment of the direction and shape of the handrail tube 30 according to the specific environment by combining different numbers and angles of bent tubes 32 and vertical tubes 31, better conforming to the building structure and the user's movement route, making it more flexible to use and with a wider range of applications.

[0082] The above provides a detailed description of a handrail tube connector and handrail according to embodiments of the present utility model. Specific examples have been used to illustrate the principle and implementation of the present utility model. The description of the above embodiments is only for the purpose of helping to understand the handrail tube connector and handrail of the present utility model and its core concept. At the same time, for those skilled in the art, there will be changes in the specific implementation and application scope based on the concept of the present utility model. Therefore, the content of this specification should not be construed as a limitation of the present utility model.

Claims

1. A handrail tube connection assembly, characterized by The utility model relates to a connecting assembly for connecting two handrail pipes, comprising: The first connecting piece is provided with at least one first guide surface, and the second connecting piece is provided with a connecting groove, the inner wall of the connecting groove is provided with at least one second guide surface, at least one first guide surface and at least one second guide surface are in sliding fit to guide the first connecting piece to be embedded into the connecting groove and be tightly fitted.

2. The handrail tube connection assembly of claim 1, wherein The first connecting piece is provided with three first guide surfaces, and the three first guide surfaces are connected with each other in the circumferential direction of the first connecting piece; the inner wall of the connecting groove is provided with three second guide surfaces, and the three second guide surfaces are correspondingly arranged with the three first guide surfaces and are in sliding fit; the first guide surface and the second guide surface are respectively inclined surfaces.

3. The handrail tube connection assembly of claim 2, wherein, Each of two adjacent first guide surfaces is connected with an arc surface; each of two adjacent second guide surfaces is connected with an arc surface.

4. The handrail tube connection assembly of claim 1, wherein The first connecting piece comprises a connecting section and a locking section, the first guide surface is arranged on the locking section and is used for guiding the locking section to extend into or exit from the connecting groove; the connecting section is used for abutting against the end surface of the second connecting piece after the locking section extends into the connecting groove.

5. The handrail tube connection assembly of claim 4, wherein, The locking section is provided with an elastic component, and the elastic component is used for providing an elastic stress to drive the locking section to be tightly fitted with the groove wall of the connecting groove after the locking section extends into the connecting groove.

6. The handrail tube connection assembly of claim 4, wherein, The locking section is provided with a first avoiding groove, and the first avoiding groove is arranged in the circumferential direction of the locking section; the connecting section is provided with a second avoiding groove, and the second avoiding groove is arranged in the circumferential direction of the connecting section.

7. A handrail, characterized in that The utility model further relates to a handrail assembly, comprising a plurality of handrail pipes and the connecting assemblies as claimed in any one of claims 1-6, the connecting assemblies are provided with a plurality of connecting assemblies, and each of two adjacent handrail pipes is connected through one connecting assembly.

8. The handrail of claim 7, wherein The utility model further relates to a locking assembly, comprising a locking piece, a locking ring and a locking seat, the locking piece is provided with a first end and a second end, the first end is connected with at least one handrail pipe, the second end is threadedly connected with the locking ring, the locking ring is rotationally connected with the locking seat and is used for guiding the second end to move along the axial direction of the locking ring to the locking seat to lock the handrail pipe and the locking seat.

9. The handrail of claim 8, wherein The locking ring is provided with a penetrating groove, the penetrating groove is provided with a first groove section and a second groove section, the first groove section is used for penetrating the second end, the second groove section is connected with the first groove section, the locking seat is provided with a connecting column, the connecting column is arranged in the second groove section, and the second end is used for pressing the connecting column when the locking ring rotates; The inner wall of the second groove section is provided with a protruding strip, the protruding strip extends in the circumferential direction of the second groove section, the outer periphery of the connecting column is provided with a first pressing surface, the first pressing surface extends in the circumferential direction of the connecting column and is used for abutting against the outer periphery of the protruding strip to press the protruding strip when the connecting column is stressed, and the protruding strip is used for pressing the locking seat when being stressed.

10. The handrail of claim 9, wherein The protruding strip is provided with a second pressing surface, the second pressing surface abuts against the first pressing surface and is used for pressing the protruding strip when being stressed. The locking assembly further comprises a protective sleeve, which is arranged on the outer periphery of the locking seat and is threadedly connected with the peripheral wall of the locking seat.

11. A handrail as claimed in any one of claims 7 to 10, wherein, The plurality of handrail pipes comprises at least one elbow pipe and at least two vertical pipes, each adjacent two of the vertical pipes are detachably connected with the elbow pipe through the connecting assembly, so that the vertical pipes and the elbow pipe are connected in a first use state or are detached in a second use state.

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