Dumbbell handle locking device

Abstract

The utility model discloses a dumbbell handle locking device and relates to the dumbbell technical field, the dumbbell handle locking device comprises a handle body and further comprises a mounting mechanism, the handle body comprises a threaded sleeve, the outer side of the middle position of the threaded sleeve is sleeved with a rotating sleeve, the outer sides of the two ends of the threaded sleeve are both sleeved with fixed sleeves, and the mounting mechanism is arranged on the threaded sleeve. The mounting mechanism comprises a movable rod, a threaded block in threaded connection with the inner wall of the threaded sleeve is mounted at one end of the movable rod, a baffle is arranged on the outer wall of one end of the movable rod, and connecting bolts are arranged between the four baffles and the inner walls of the adjacent fixed sleeves. According to the dumbbell, the threaded sleeve rotates through rotation of the rotating sleeve, the extension length of the movable rod can be conveniently adjusted according to the number of dumbbell pieces needing to be added, and the connecting bolts are in threaded connection with the inner walls of the adjacent mounting holes so that the dumbbell pieces can be kept stable on the outer side of the movable rod; and meanwhile, the adjusted rotating sleeve can be locked.

Description

Technical Field

[0001] This utility model relates to the field of dumbbell technology, specifically to a dumbbell handle locking device. Background Technology

[0002] Dumbbells are a simple piece of equipment used for training to increase muscle strength. They are primarily made of cast iron, and some are coated with rubber. Their purpose is for muscle strength training and compound muscle movement exercises. Patients with low muscle strength due to paralysis, pain, or prolonged inactivity can use dumbbells to perform active resistance exercises and train their muscle strength.

[0003] The existing technology has the following shortcomings: In the use of existing dumbbell handles, the length of the two ends used to install dumbbell plates is usually fixed, and it is impossible to adjust the length of the two ends according to the number of dumbbell plates to be added. At the same time, when installing dumbbell plates, it is not possible to stably fix the dumbbell plates, which makes the dumbbell plates prone to movement after installation.

[0004] The information disclosed in the background section is only intended to enhance the understanding of the background of this disclosure, and therefore may include information that does not constitute prior art known to those skilled in the art. Utility Model Content

[0005] The purpose of this invention is to provide a dumbbell handle locking device. By rotating the rotating sleeve, the threaded sleeve rotates. Through the threaded connection between the threaded sleeve and two threaded blocks, the extension length of the movable rod can be easily adjusted according to the number of dumbbell plates added. The connecting bolt passes through the fixing hole and the inner wall of the dumbbell plate and is threadedly connected to the inner wall of the adjacent mounting hole, so that the dumbbell plate remains stable on the outside of the movable rod. At the same time, it can lock the adjusted rotating sleeve to solve the above-mentioned shortcomings in the technology.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a dumbbell handle locking device, comprising a handle body, and further comprising:

[0007] There are two mounting mechanisms, located at both ends inside the handle body, for mounting and securing the dumbbell plates;

[0008] The handle body includes a threaded sleeve, a rotating sleeve is fixedly sleeved on the outer side of the middle position of the threaded sleeve, and fixed sleeves are fixedly sleeved on the outer sides of both ends of the threaded sleeve.

[0009] The installation mechanism includes a movable rod, which is movably inserted into one end of the threaded sleeve. A threaded block is fixedly installed at one end of the movable rod, and the outer wall of the threaded block is threadedly connected to the inner wall of the threaded sleeve. Four mounting seats are fixedly installed on the outer wall of the end of the movable rod away from the threaded block. A baffle plate is rotatably installed on the outer side of each of the four mounting seats, and a connecting bolt is provided between each of the four baffle plates and the inner wall of the adjacent fixed sleeve.

[0010] Preferably, a fixing ring is fixedly installed on the outer wall of one adjacent end of each of the two fixed sleeves, and four mounting holes are equally spaced on the inner wall of the end of each of the two fixed sleeves away from the rotating sleeve.

[0011] Preferably, the inner walls of the four barrier plates at the same end are provided with fixing holes, the inner walls of the fixing holes are threaded to the outer walls of the adjacent connecting bolts, and the end of the connecting bolt away from the fixing hole is threaded to the inner wall of the adjacent mounting hole.

[0012] Preferably, the inner wall of the rotating sleeve is provided with limiting grooves at both ends, and the inner wall of the limiting groove is movably connected to the outer wall of the adjacent fixed ring.

[0013] Preferably, a fixing block is fixedly installed on the top of the inner wall of each of the two opposite ends of the fixing sleeve, and a sliding groove is opened on the top of each of the two movable rods, and the outer wall of the fixing block is movably connected to the inner wall of the adjacent sliding groove.

[0014] Preferably, the threads on the inner walls of the threaded sleeve are in opposite directions, the outer diameter of the threaded sleeve is the same as the inner diameter of the fixed sleeve, and the outer diameter of the rotating sleeve is the same as the outer diameter of the two fixed sleeves at their closest ends.

[0015] The technical effects and advantages provided by this utility model in the above technical solution are as follows:

[0016] 1. By rotating the rotating sleeve, the threaded sleeve rotates. Through the threaded connection between the threaded sleeve and the two threaded blocks, the two movable rods can be extended outwards from the handle body. This allows for easy adjustment of the extension length of the movable rods according to the number of dumbbell plates to be added. By rotating the blocking plate, it can be changed from a state parallel to the movable rod to a state perpendicular to the movable rod, so that the blocking plate can block the dumbbell plates. The connecting bolt passes through the fixing hole and the inner wall of the dumbbell plate and is threadedly connected to the inner wall of the adjacent mounting hole, so that the dumbbell plates remain stable on the outside of the movable rod. At the same time, the adjusted rotating sleeve can be locked to prevent it from moving.

[0017] 2. By limiting the movement of the groove along the outer wall of the fixed ring, the rotation of the rotating sleeve can be limited, and the connection between the fixed sleeve and the rotating sleeve can be reinforced. This can prevent the fixed sleeve from falling out of the gap between the threaded sleeve and the rotating sleeve, and can ensure the stability of the handle body. At the same time, the sliding groove moves along the outer wall of the fixed block, which can limit the movement of the movable rod, so that the movable rod remains stable during the extension process. Attached Figure Description

[0018] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in this utility model. For those skilled in the art, other drawings can be obtained based on these drawings.

[0019] Figure 1 This is a schematic diagram of the overall structure of this utility model.

[0020] Figure 2 This is a front vertical sectional view of the present invention.

[0021] Figure 3 This utility model Figure 2 Enlarged view of part A.

[0022] Figure 4 This is an exploded view of the three-dimensional structure of the handle body of this utility model.

[0023] Figure 5 This is an exploded three-dimensional view of the installation mechanism of this utility model.

[0024] Explanation of reference numerals in the attached figures:

[0025] 1. Handle body; 101. Threaded sleeve; 102. Rotating sleeve; 103. Limiting groove; 104. Fixed sleeve; 105. Retaining ring; 106. Mounting hole; 107. Fixing block;

[0026] 2. Installation mechanism; 201. Movable rod; 202. Threaded block; 203. Mounting base; 204. Barrier plate; 205. Fixing hole; 206. Connecting bolt; 207. Slide groove. Detailed Implementation

[0027] This utility model provides, for example Figure 1 The dumbbell handle locking device shown includes a handle body 1, and further includes:

[0028] There are two mounting mechanisms 2, located at both ends inside the handle body 1, for mounting and fixing dumbbell plates.

[0029] For easier holding of dumbbells, such as Figure 2 and Figure 4 As shown, the handle body 1 includes a threaded sleeve 101, a rotating sleeve 102 is fixedly sleeved on the outer side of the middle position of the threaded sleeve 101, and fixed sleeves 104 are fixedly sleeved on the outer sides of both ends of the threaded sleeve 101. The rotating sleeve 102 and the fixed sleeve 104 form an I-shaped structure, which makes it convenient for users to hold the dumbbell.

[0030] To facilitate easy adjustment of the movable bar 201 according to the number of dumbbell plates added, such as Figure 2-4 As shown, the mounting mechanism 2 includes a movable rod 201, which is movably inserted into one end of the threaded sleeve 101. A threaded block 202 is fixedly installed at one end of the movable rod 201. The outer wall of the threaded block 202 is threadedly connected to the inner wall of the threaded sleeve 101. Four mounting seats 203 are fixedly installed on the outer wall of the end of the movable rod 201 away from the threaded block 202. A baffle plate 204 is rotatably installed on the outer side of each of the four mounting seats 203. A connecting bolt 206 is provided between each of the four baffle plates 204 and the inner wall of the adjacent fixed sleeve 104. The rotation of the rotating sleeve 102 can drive the threaded sleeve 101 to rotate. Through the threaded connection between the sleeve and the two threaded blocks 202, the extension length of the two movable rods 201 can be adjusted, thereby conveniently adjusting the extension length of the movable rods 201 according to the number of dumbbells to be added.

[0031] To ensure that the barrier plate 204 can stably fix the dumbbell plates, such as Figure 2 and Figure 4-5 As shown, a fixing ring 105 is fixedly installed on the outer wall of one adjacent end of each of the two fixing sleeves 104. Four mounting holes 106 are equally spaced in a ring on the inner wall of the end of each of the two fixing sleeves 104 away from the rotating sleeve 102. Fixing holes 205 are also provided on the inner wall of the four baffles 204 at the same end. The inner wall of the fixing hole 205 is threaded to the outer wall of the adjacent connecting bolt 206. The end of the connecting bolt 206 away from the fixing hole 205 is threaded to the inner wall of the adjacent mounting hole 106. The connecting bolt 206 passes through the inner wall of the fixing hole 205 and is threaded to the inner wall of the adjacent mounting hole 106, so that the baffles 204 and the fixing sleeves 104 can be used to install and fix the dumbbell plates.

[0032] To prevent the fixed sleeve 104 from separating from the rotating sleeve 102, such as Figure 2-4 As shown, both ends of the inner wall of the rotating sleeve 102 are provided with limiting grooves 103. The inner wall of the limiting groove 103 is movably connected to the outer wall of the adjacent fixing ring 105. The connection between the limiting groove 103 and the fixing ring 105 makes the rotating sleeve 102 and the fixing sleeve 104 tightly connected, which can prevent the fixing sleeve 104 from falling out of the gap between the rotating sleeve 102 and the threaded sleeve 101.

[0033] To ensure the stability of the movable rod 201 during movement, such as Figure 2 and Figure 4-5 As shown, a fixing block 107 is fixedly installed on the top of the inner wall of the two opposite ends of the fixed sleeves 104. A sliding groove 207 is opened on the top of the two movable rods 201. The outer wall of the fixing block 107 is movably connected to the inner wall of the adjacent sliding groove 207. The sliding groove 207 moves along the outer wall of the fixing block 107, so that the movable rod 201 remains stable during movement.

[0034] To provide a better grip for the handle body 1, such as Figure 2-4 As shown, the threads at both ends of the inner wall of the threaded sleeve 101 are in opposite directions. The outer diameter of the threaded sleeve 101 is the same as the inner diameter of the fixed sleeve 104. The outer diameter of the rotating sleeve 102 is the same as the outer diameter of the two fixed sleeves 104 at their closest ends. The outer wall of the rotating sleeve 102 and the outer wall of the fixed sleeve 104 are on the same cylindrical curved surface, which makes it convenient for the user to hold the handle body 1.

[0035] The specific implementation method is as follows: When using the dumbbell, twisting the rotating sleeve 102 can drive the threaded sleeve 101 to rotate. The threads on the inner walls of the two ends of the threaded sleeve 101 are in opposite directions. Through the threaded connection between the threaded sleeve 101 and the threaded block 202, the two threaded blocks 202 can move inwards towards both ends, thereby pushing the two movable rods 201 to extend outwards towards the two fixed sleeves 104. At the same time, the sliding groove 207 moves along the outer wall of the fixed block 107, which can limit the movement of the movable rods 201 and keep them stable during movement. Meanwhile, the limiting groove 103 rotates along the outer wall of the fixed ring 105, which can limit the rotation of the rotating sleeve 102 and prevent the fixed sleeves 104 from... The gap between the threaded sleeve 101 and the rotating sleeve 102 is dislodged, ensuring the stability of the handle body 1. After the extension length of the movable rod 201 reaches the required length, the dumbbell plate is fitted onto the outside of the movable rod 201. Then, by rotating the four baffles 204 at the same end, the dumbbell plate is rotated from a state parallel to the movable rod 201 to a state perpendicular to the movable rod 201. Then, the connecting bolt 206 is used to pass through the fixing hole 205 and the inner wall of the dumbbell plate and is threadedly connected to the inner wall of the adjacent mounting hole 106, so that the dumbbell plate remains stable after installation. At the same time, the rotating sleeve 102 can be locked after rotation to prevent it from moving. This embodiment specifically solves the problem in the prior art that it is not convenient to adjust the handle according to the number of dumbbell plates to be added.

[0036] The foregoing description only illustrates certain exemplary embodiments of the present invention. Undoubtedly, those skilled in the art can modify the described embodiments in various ways without departing from the spirit and scope of the present invention. Therefore, the above drawings and descriptions are illustrative in nature and should not be construed as limiting the scope of protection of the claims of the present invention.

Claims

1. A dumbbell handle locking device, comprising a handle body (1), characterized in that, Also includes: The mounting mechanism (2) has two parts, which are respectively located at both ends inside the handle body (1) for mounting and fixing dumbbell plates; The handle body (1) includes a threaded sleeve (101), a rotating sleeve (102) is fixedly sleeved on the outer side of the middle position of the threaded sleeve (101), and fixed sleeves (104) are fixedly sleeved on the outer sides of both ends of the threaded sleeve (101). The installation mechanism (2) includes a movable rod (201), which is movably inserted into one end of the threaded sleeve (101). A threaded block (202) is fixedly installed at one end of the movable rod (201). The outer wall of the threaded block (202) is threadedly connected to the inner wall of the threaded sleeve (101). Four mounting seats (203) are fixedly installed on the outer wall of the end of the movable rod (201) away from the threaded block (202). A baffle plate (204) is rotatably installed on the outer side of each of the four mounting seats (203). A connecting bolt (206) is provided between each of the four baffle plates (204) and the inner wall of the adjacent fixed sleeve (104).

2. The dumbbell handle locking device according to claim 1, characterized in that: A fixing ring (105) is fixedly installed on the outer wall of one adjacent end of the two fixing sleeves (104), and four mounting holes (106) are equally spaced on the inner wall of the end of the two fixing sleeves (104) away from the rotating sleeve (102).

3. A dumbbell handle locking device according to claim 2, characterized in that: The inner walls of the four barrier plates (204) at the same end are provided with fixing holes (205). The inner walls of the fixing holes (205) are threaded to the outer walls of the adjacent connecting bolts (206). The end of the connecting bolts (206) away from the fixing holes (205) is threaded to the inner walls of the adjacent mounting holes (106).

4. A dumbbell handle locking device according to claim 2, characterized in that: The inner walls of the rotating sleeve (102) are provided with limiting grooves (103) at both ends, and the inner walls of the limiting grooves (103) are movably connected to the outer walls of the adjacent fixed rings (105).

5. A dumbbell handle locking device according to claim 1, characterized in that: A fixing block (107) is fixedly installed on the top of the inner wall of the opposite end of the two fixed sleeves (104), and a sliding groove (207) is opened on the top of the two movable rods (201). The outer wall of the fixing block (107) is movably connected to the inner wall of the adjacent sliding groove (207).

6. A dumbbell handle locking device according to claim 1, characterized in that: The threads on the inner walls of the threaded sleeve (101) are opposite in direction. The outer diameter of the threaded sleeve (101) is the same as the inner diameter of the fixed sleeve (104). The outer diameter of the rotating sleeve (102) is the same as the outer diameter of the end of the two fixed sleeves (104) that is close to each other.

Images