A single bar on the door which is easy to assemble and disassemble

Abstract

The utility model belongs to the technical field of door single bar, specifically relates to an easy-to-assemble-and-disassemble door single bar, and provides an easy-to-assemble-and-disassemble door single bar, aims at solving the inconvenient assembly and disassembly of the door single bar in the prior art, an easy-to-assemble-and-disassemble door single bar, including horizontal pole and the support seat of setting on horizontal pole, the support seat is through connecting rod setting on horizontal pole, the utility model discloses through adopting the connecting seat design of split type, and is equipped with elastic part, and user does not need complicated tool or tedious operation step when assembling and disassembling the door single bar. Only needs simply overcoming the action of elastic part, can easily complete the assembly or disassembly of connecting seat and connecting rod, and greatly improves the convenient use. The first part and the second part of connecting seat respectively pass through the cooperation of positioning block and positioning slot, recess and convex part, ensure the firm connection between connecting seat and connecting rod. This design improves the stability of the door single bar after installation.

Description

Technical Field

[0001] This utility model belongs to the technical field of door-mounted horizontal bars, specifically relating to an easy-to-assemble and disassemble door-mounted horizontal bar. Background Technology

[0002] A door-mounted pull-up bar is a common indoor fitness equipment, mainly used for pull-up exercises installed on a door frame. Due to its small size and ease of installation, it is popular among fitness enthusiasts. The existing door-mounted pull-up bar structure includes a bar body and support legs connected to both ends of the bar body. The bar body includes left and right connecting rods, handle tubes, and screws with positive and negative threads on both sides. One end of the left connecting rod is threaded to one side of the screw, and the other end is connected to the left support leg. One end of the right connecting rod is threaded to the other side of the screw, and the other end is connected to the right support leg. When the handle tubes rotate, they drive the screws to rotate, allowing the left and right connecting rods to extend outwards until the two support legs are pressed firmly against the inner walls of the door frame.

[0003] In existing technology, the screw and connecting pipe of the door bar are directly connected by threads, which makes it inconvenient to assemble and disassemble the door bar. Utility Model Content

[0004] This utility model provides an easy-to-assemble and disassemble door bar, aiming to solve the problem of inconvenient assembly and disassembly of door bars in the prior art.

[0005] To solve the above-mentioned technical problems, the technical solution adopted by this utility model is as follows:

[0006] A door bar that is easy to install and disassemble includes a horizontal bar and a support seat disposed on the horizontal bar. The support seat is disposed on the horizontal bar via a connecting rod. A screw is disposed inside the horizontal bar to drive the connecting rod to move the support seat closer to or away from the horizontal bar.

[0007] The connecting rod is provided with a connecting seat that mates with the screw, and the connecting seat is provided with an internal thread that mates with the screw. The connecting seat includes a first part and a second part, and an elastic element is provided between the first part and the second part.

[0008] The first part is provided with a positioning block to prevent the first part from rotating circumferentially relative to the connecting rod, and the connecting rod is provided with a positioning groove that cooperates with the positioning block;

[0009] The second part is provided with a groove to prevent the second part from rotating circumferentially relative to the connecting rod, and the connecting rod is provided with a protrusion extending into the groove;

[0010] The elastic element pushes the first part to make the positioning block engage with the positioning groove, and the elastic element pushes the second part to make the protrusion engage with the groove.

[0011] A further improved solution: There are two elastic elements, which are located on both sides of the first part.

[0012] Based on the above technical solution: two elastic elements are located on both sides of the first part, which can provide thrust more evenly and ensure that the positioning block is more firmly engaged in the positioning groove. This design helps prevent the connection from loosening or falling off due to uneven force during use, thereby improving the stability and safety of the door bar. The distribution of the two elastic elements can more effectively disperse stress and reduce the load on a single elastic element. This helps extend the service life of the elastic elements and reduce deformation or damage caused by long-term stress, thereby improving the overall durability of the door bar.

[0013] A further improved solution: the two elastic elements are symmetrically arranged about the plane of symmetry of the first part, and the axis of the connecting rod is located on the plane of symmetry.

[0014] Based on the above technical solution: Due to the symmetrical distribution of the two elastic elements, they can provide a more even thrust to the first part, ensuring that the positioning block can smoothly and firmly snap into the positioning groove during assembly. This balanced force distribution helps reduce loosening or wear caused by uneven force, thereby improving the stability and durability of the connection. The symmetrical layout makes it easier for users to ensure the alignment of the connecting seat and the connecting rod during assembly. The axis of the connecting rod is located on the plane of symmetry, providing a clear reference point for assembly, which helps to achieve more precise assembly and further improves the overall stability and safety of the gate-top bar. The symmetrical arrangement of the two elastic elements helps to enhance the balance of the overall structure of the gate-top bar. During use, this balance can reduce twisting or deformation caused by uneven force, thereby maintaining the stability and service life of the equipment. Due to the symmetrical design of the structure, users can operate more easily and conveniently when performing maintenance work such as cleaning, servicing, or replacing parts. The symmetrical layout makes it easier for users to identify and access the parts that need maintenance.

[0015] A further improved solution: The first part is provided with an upper positioning hole for positioning the elastic element, and the upper end of the elastic element is located in the upper positioning hole; the second part is provided with a lower positioning hole for positioning the elastic element, and the lower end of the elastic element is located in the lower positioning hole.

[0016] Based on the above technical solution, the upper and lower positioning holes provide clearly defined fixed positions for the upper and lower ends of the elastic element, respectively. This design ensures that the elastic element maintains the correct position and posture after assembly, preventing displacement or detachment due to movement or vibration. Stable fixing helps maintain consistent thrust of the elastic element, thus ensuring a secure connection of the connector. Precise positioning of the elastic element through the upper and lower positioning holes allows the first and second parts of the connector to be more tightly joined together. This tight connection helps reduce deformation or loosening of the connector under stress, thereby enhancing its stability and durability. The design of the upper and lower positioning holes simplifies the assembly process. Users only need to align the upper and lower ends of the elastic element with the upper and lower positioning holes respectively to easily complete the assembly of the connector. This design reduces assembly complexity and time costs, improving assembly efficiency. By precisely fixing the elastic element, the entire door bar structure becomes more reliable. During long-term use, this reliability helps reduce the failure rate caused by loose connections or component damage, thus extending the service life of the door bar.

[0017] A further improvement: the elastic element is a spring.

[0018] Based on the above technical solution: the spring has a stable elastic restoring force, providing continuous thrust to the first and second parts of the connecting seat. This thrust ensures that the positioning block and protrusion can be firmly engaged in the positioning groove and recess, thereby maintaining a stable connection of the connecting seat. Due to the elasticity of the spring, the user only needs to overcome a relatively small force when installing or removing the door bar. This design makes the installation and removal process easier and more convenient, improving the user experience. As an elastic element, the spring has high durability and fatigue resistance. During long-term use, the spring can maintain a stable elastic restoring force, reducing the failure rate caused by deformation or damage. As a common elastic element, the spring has a relatively low manufacturing cost. Using a spring as the elastic element for the door bar helps reduce the overall manufacturing cost and improve the product's cost-effectiveness.

[0019] A further improved solution: the positioning block and the first part are an integral structure, and the positioning groove penetrates the side wall of the connecting rod.

[0020] Based on the above technical solution: Since the positioning block and the first part are an integral structure, the user only needs to apply pressure to the first part during disassembly to detach the positioning block from the positioning groove. This design avoids the complexity of traditional designs that require multiple steps or tools to disassemble the connecting seat, making the disassembly process simpler and more efficient. The positioning groove penetrating the side wall of the connecting rod provides a clear exit path for the positioning block. When the user presses the first part, they can intuitively feel the positioning block moving along the positioning groove, making it easier to control the disassembly process. This design improves the ease of operation, allowing users to complete the disassembly task more easily. The integral structure of the positioning block and the positioning groove penetrating the side wall share the force during the disassembly process. Due to the rationality of the structural design, the user only needs to apply relatively small force to detach the positioning block from the positioning groove. This design reduces the force required by the user during the disassembly process, reducing the difficulty of operation and fatigue.

[0021] A further improved solution: the cross-sectional shape of the groove is arc-shaped.

[0022] Based on the above technical solution: the arc-shaped groove design allows for a smoother fit with components such as protrusions or positioning blocks. During assembly, this design reduces friction and resistance between components, making it easier for the connector to move along the connecting rod and engage in the correct position. The arc-shaped groove provides a larger and more uniform contact area with the corresponding component. This design helps distribute stress, reducing loosening or damage caused by concentrated stress. Simultaneously, the arc design better accommodates minor differences between components, thereby improving the stability and durability of the connection. Because the arc-shaped groove design reduces direct collisions and friction between components, it reduces wear and noise during use. This design helps extend the service life of the door bar and maintain its good working condition.

[0023] A further improved solution: the protrusion and the connecting rod are an integral structure.

[0024] Based on the above technical solution: the protrusion and connecting rod are an integral structure, meaning they are single components formed through integral machining or casting. This design significantly enhances the structural strength of the connecting rod and its protrusion, making them less prone to deformation or breakage under stress. This is crucial for fitness equipment like door-mounted horizontal bars that need to withstand human weight and dynamic forces. The integral structure of the protrusion and connecting rod ensures precise alignment and fixation during manufacturing, avoiding positional deviations during assembly. This design improves assembly accuracy, ensuring the protrusion accurately mates with grooves or positioning slots, thereby enhancing connection stability. Because the protrusion and connecting rod are integrated, users do not need to worry about the protrusion's position or installation during assembly. This design simplifies assembly steps, reduces assembly time and costs, and improves production efficiency.

[0025] A further improved solution: the connecting rod is cylindrical, and the protrusion is formed by bending the side wall of the connecting rod.

[0026] Based on the above technical solution: the protrusion is formed by bending the side wall of the connecting rod, meaning that the protrusion and the connecting rod are integrally connected without additional connection points. This design enhances the overall structural integrity, allowing the connecting rod and the protrusion to share the load under stress, reducing the risk of failure due to loose connections or component separation. Forming the protrusion by bending the side wall of the connecting rod makes full use of existing materials, avoiding the need for additional materials. This design improves material utilization, reduces manufacturing costs, and also reduces waste generation, aligning with environmental protection principles. The protrusion is formed by bending the side wall of the connecting rod, a step that can be completed during manufacturing along with other processing steps, eliminating the need for additional assembly or welding. This design simplifies the manufacturing process and improves production efficiency. Because the protrusion and the connecting rod are an integral structure, their connection is more robust. This design enhances the connection stability between the connecting seat and the connecting rod, making the single bar on the door safer and more reliable during use.

[0027] A further improved solution: the connecting seat is inserted into the connecting rod, and one end of the connecting seat is provided with a shoulder to prevent the connecting seat from moving relative to the connecting rod along the axial direction of the connecting rod. The shoulder is located outside the connecting rod, and one end face of the connecting rod contacts the shoulder.

[0028] Based on the above technical solution: the shoulder is located outside the connecting rod and contacts one of the end faces of the connecting rod, effectively restricting the movement of the connecting seat in the axial direction of the connecting rod. This design enhances the connection stability between the connecting seat and the connecting rod, ensuring that the door-mounted horizontal bar will not cause safety hazards due to loose connections during use. Because of the shoulder, users do not need additional fasteners or tools to ensure the position of the connecting seat when installing the door-mounted horizontal bar. Simply insert the connecting seat into the connecting rod until the shoulder contacts the end face of the connecting rod. This design simplifies the installation process and improves installation efficiency. The contact between the shoulder and the end face of the connecting rod increases the force-bearing area of ​​the connection, thereby distributing the force and improving the load-bearing capacity. This design allows the door-mounted horizontal bar to withstand greater weight, meeting the fitness needs of more users.

[0029] The beneficial effects of this utility model are as follows:

[0030] This invention employs a split-type connector design and is equipped with an elastic element, eliminating the need for complex tools or cumbersome procedures when assembling or disassembling the single bar on a door. Simply overcoming the force of the elastic element allows for easy assembly or disassembly of the connector and connecting rod, greatly improving ease of use.

[0031] The first and second parts of the connector ensure a secure connection between the connector and the connecting rod through the engagement of the positioning block and the positioning groove, and the groove and the protrusion, respectively. This design not only improves the stability of the single bar on the door after installation, but also ensures safety during use.

[0032] Because it's easy to assemble and disassemble, this door-mounted horizontal bar can easily adapt to various types of door frames and installation environments. It can be widely used in both home gyms and public fitness areas.

[0033] When users need to clean, maintain, or replace parts of the horizontal bar on the door, the simplified assembly and disassembly process makes the operation easier and more convenient, extending the service life of the equipment. Attached Figure Description

[0034] To more clearly illustrate the technical solutions of the embodiments of this utility model, the accompanying drawings used in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of this utility model and should not be regarded as a limitation on the scope. For users of ordinary skills in the art, other related drawings can be obtained from these drawings without creative effort.

[0035] Figure 1 This is a schematic diagram of an easy-to-assemble and disassemble door bar according to the present invention.

[0036] Figure 2 This is an exploded view of the assembly of the connecting seat, connecting rod, and screw in a door-mounted single bar that is easy to assemble and disassemble according to this utility model.

[0037] Figure 3 This is a schematic diagram of a connecting seat for an easily assembled and disassembled single bar on a door, according to this utility model.

[0038] Figure 4 This is a schematic diagram of the assembly of the connecting seat, connecting rod, and screw in a door-mounted single bar that is easy to assemble and disassemble according to this utility model.

[0039] Figure 5 This is a schematic diagram of the internal structure of a door-mounted single bar that is easy to assemble and disassemble according to this utility model.

[0040] Explanation of the labels in the diagram:

[0041] 1-Horizontal bar; 2-Support seat; 3-Screw; 4-Connecting rod; 5-Connecting seat; 6-First part; 7-Second part; 8-Elastic element; 9-Positioning block; 10-Positioning groove; 11-Groove; 12-Protrusion; 13-Upper positioning hole; 14-Lower positioning hole; 15-Shoulder. Detailed Implementation

[0042] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. It should be understood that the specific embodiments described herein are merely for explaining the present utility model and are not intended to limit the present utility model. All other embodiments obtained by users of the art based on the embodiments of the present utility model without creative effort are within the protection scope of the present utility model.

[0043] refer to Figures 1 to 5 A door bar that is easy to install and disassemble includes a horizontal bar 1 and a support seat 2 disposed on the horizontal bar 1. The support seat 2 is disposed on the horizontal bar 1 via a connecting rod 4. A screw 3 is disposed inside the horizontal bar 1 to drive the connecting rod 4 to move the support seat 2 closer to or away from the horizontal bar 1.

[0044] The connecting rod 4 is provided with a connecting seat 5 that mates with the screw 3. The connecting seat 5 is provided with an internal thread that mates with the screw 3. The connecting seat 5 includes a first part 6 and a second part 7. An elastic element 8 is provided between the first part 6 and the second part 7.

[0045] The first part 6 is provided with a positioning block 9 to prevent the first part 6 from rotating circumferentially relative to the connecting rod 4, and the connecting rod 4 is provided with a positioning groove 10 that cooperates with the positioning block 9;

[0046] The second part 7 is provided with a groove 11 to prevent the second part 7 from rotating circumferentially relative to the connecting rod 4, and the connecting rod 4 is provided with a protrusion 12 extending into the groove 11;

[0047] The elastic element 8 pushes the first part 6 to make the positioning block 9 engage with the positioning groove 10, and the elastic element 8 pushes the second part 7 to make the protrusion 12 engage with the groove 11.

[0048] There are two elastic elements 8, located on opposite sides of the first part 6. The two elastic elements 8 are symmetrically arranged about a plane of symmetry of the first part 6, and the axis of the connecting rod 4 lies on this plane. The first part 6 has an upper positioning hole 13 for positioning the elastic element 8, with the upper end of the elastic element 8 located within the upper positioning hole 13. The second part 7 has a lower positioning hole 14 for positioning the elastic element 8, with the lower end of the elastic element 8 located within the lower positioning hole 14. The elastic element 8 is a spring. Other elements with elastic deformation functions can also be used instead of the elastic element 8. The number of springs is not limited; more springs can be used. The number of springs should be even to ensure that the number of springs on both sides of the first part 6 is equal.

[0049] Specifically: the positioning block 9 and the first part 6 are an integral structure, and the positioning groove 10 penetrates the side wall of the connecting rod 4. The cross-sectional shape of the groove 11 is arc-shaped. The protrusion 12 and the connecting rod 4 are an integral structure. The connecting rod 4 is cylindrical, and the protrusion 12 is formed by bending the side wall of the connecting rod 4. The positioning block 9 can extend beyond the outer wall of the connecting rod 4.

[0050] Wherein: the connecting seat 5 is inserted into the connecting rod 4, and one end of the connecting seat 5 is provided with a shoulder 15 to prevent the connecting seat 5 from moving relative to the connecting rod 4 along the axial direction of the connecting rod 4. The shoulder 15 is located outside the connecting rod 4, and one end face of the connecting rod 4 contacts the shoulder 15. The shoulder 15 located on the first part 6 is an integral structure with the first part 6, and the shoulder 15 located on the second part 7 is an integral structure with the second part 7.

[0051] The working principle of this embodiment:

[0052] The connecting seat 5 is designed as a split type, comprising a first part 6 and a second part 7. The two parts are connected by an elastic element 8, which allows the positioning block 9 and the protrusion 12 to be engaged into the positioning groove 10 and the recess 11 respectively by the thrust of the elastic element 8 during assembly.

[0053] When a user needs to assemble a single bar on a door, simply align the first part 6 and the second part 7 of the connecting seat 5 with the connecting rod 4, and apply slight force to overcome the force of the elastic element 8. At this time, the positioning block 9 will be pushed into the positioning groove 10, and the protrusion 12 will also be pushed into the groove 11, thereby achieving a stable connection between the connecting seat 5 and the connecting rod 4.

[0054] When the user needs to disassemble the single bar on the door, only a little force is needed to disengage the positioning block 9 from the positioning groove 10 and separate the protrusion 12 from the groove 11. Due to the action of the elastic element 8, the first part 6 and the second part 7 of the connecting seat 5 will automatically separate, thus easily completing the disassembly.

[0055] This utility model is not limited to the above-mentioned optional embodiments. Under the premise of non-contradiction, the various solutions can be combined arbitrarily. Anyone can derive other forms of products under the guidance of this utility model. However, no matter what changes are made in their shape or structure, all technical solutions that fall within the scope of the claims of this utility model are within the protection scope of this utility model.

Claims

1. A portable door bar, characterized by: It includes a crossbar and a support seat disposed on the crossbar. The support seat is disposed on the crossbar via a connecting rod. A screw is disposed inside the crossbar to drive the connecting rod to move the support seat closer to or away from the crossbar. The connecting rod is provided with a connecting seat that mates with the screw, and the connecting seat is provided with an internal thread that mates with the screw. The connecting seat includes a first part and a second part, and an elastic element is provided between the first part and the second part. The first part is provided with a positioning block to prevent the first part from rotating circumferentially relative to the connecting rod, and the connecting rod is provided with a positioning groove that cooperates with the positioning block; The second part is provided with a groove to prevent the second part from rotating circumferentially relative to the connecting rod, and the connecting rod is provided with a protrusion extending into the groove; The elastic element pushes the first part to make the positioning block engage with the positioning groove, and the elastic element pushes the second part to make the protrusion engage with the groove.

2. A portable door-mounted horizontal bar according to claim 1, wherein: There are two elastic elements, which are located on both sides of the first part.

3. A portable door-mounted horizontal bar according to claim 2, wherein: The two elastic elements are symmetrically arranged about the plane of symmetry of the first part, and the axis of the connecting rod is located on the plane of symmetry.

4. A door-mounted single bar that is easy to assemble and disassemble according to any one of claims 1 to 3, characterized in that: The first part is provided with an upper positioning hole for positioning the elastic element, and the upper end of the elastic element is located in the upper positioning hole. The second part is provided with a lower positioning hole for positioning the elastic element, and the lower end of the elastic element is located in the lower positioning hole.

5. A portable door-mounted horizontal bar according to claim 4, wherein: The elastic element is a spring.

6. The easily detachable single bar on a door according to claim 1, characterized in that: The positioning block and the first part are an integral structure, and the positioning groove penetrates the side wall of the connecting rod.

7. The easily detachable single bar on a door according to claim 1, characterized in that: The groove has an arc-shaped cross-section.

8. A door-mounted single bar that is easy to assemble and disassemble according to claim 1 or 7, characterized in that: The protrusion and the connecting rod are an integral structure.

9. A door-mounted single bar that is easy to assemble and disassemble according to claim 8, characterized in that: The connecting rod is cylindrical, and the protrusion is formed by bending the side wall of the connecting rod.

10. A door-mounted single bar that is easy to assemble and disassemble according to claim 1, characterized in that: The connector is inserted into the connecting rod. One end of the connector is provided with a shoulder to prevent the connector from moving relative to the connecting rod along the axis of the connecting rod. The shoulder is located outside the connecting rod, and one end face of the connecting rod contacts the shoulder.

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