Spring-loaded universal coupling

Abstract

The utility model discloses a kind of spring top-tight structure's universal coupling, it is related to universal coupling technical field.The universal coupling of the spring top-tight structure, including main rod, the both ends of main rod are fixedly installed with C-shaped mounting block, the top of C-shaped mounting block is fixedly installed with water tank, the top of water tank is fixedly installed with liquid inlet pipe, protective cover is set on liquid inlet pipe, the inside bottom of water tank is fixedly installed with transmission case, the side of C-shaped mounting block is provided with connecting seat, cooling mechanism is set on transmission case, cooling mechanism includes worm that rotates and is installed in the inside of transmission case, so that the device can be rotated by the friction between it and upper locating sleeve when spherical block is rotated, so as to drive worm to rotate, and then it can control pressing plate to squeeze out water in water tank and be sprayed through spray head to cool top-tight spring, so that top-tight spring can better work in high temperature environment, improve the practicability of device.

Description

Technical Field

[0001] This utility model relates to the field of universal coupling technology, and in particular to a universal coupling with a spring-loaded clamping structure. Background Technology

[0002] Universal joints utilize the characteristics of their mechanism to enable continuous rotation of two connected shafts even when they are not on the same axis and there is an angle between the axes, and reliably transmit torque and motion. The biggest feature of universal joints is that their structure has a large angular compensation capability, is compact, and has high transmission efficiency. The angle between the two axes of universal joints varies depending on the structural type, generally between 5° and 45°.

[0003] A universal joint with cross shaft, disclosed in announcement number CN222296787U, relates to the field of coupling technology. It includes a connecting seat and a connecting flange, both of which are provided in two sets. A shaft fork is fixedly mounted on the side of each connecting seat and flange closest to each other. This invention achieves a transmission effect by setting a connecting seat and a connecting flange, with a shaft fork between them, and a support shaft and a drive shaft between the two shaft forks. The support shaft and drive shaft form a cross shaft structure. A spherical block with a circular hole in the center of the support shaft allows the drive shaft to pass through the hole. During use, friction occurs between the support shaft and the drive shaft, reducing the friction between the support shaft, drive shaft, and shaft forks, thus protecting the universal joint and extending its service life.

[0004] While the aforementioned universal joint can protect the universal joint, it fails to consider that the spherical block inside the device, due to prolonged rotation and friction between the positioning sleeve and the locating sleeve, can create a gap. When the spherical block rotates again, it will collide with the positioning sleeve, leading to a reduction in the device's lifespan. Therefore, a spring-loaded structure is needed at the bottom of the positioning sleeve to lift it and prevent gaps from forming between the positioning sleeve and the spherical block. However, the existing spring-loaded structure suffers from softening of its metal material under high temperatures, resulting in a decrease in its elastic modulus, reduced load-bearing capacity, and even permanent deformation.

[0005] Therefore, a universal coupling with a spring-loaded clamping structure is proposed. Utility Model Content

[0006] The purpose of this invention is to provide a universal coupling with a spring-loaded clamping structure, which can solve the problem that some spring-loaded clamping structures cannot work well in high-temperature environments.

[0007] To achieve the above objectives, this utility model provides the following technical solution: a universal coupling with a spring-loaded clamping structure, comprising a main rod, with C-shaped mounting blocks fixedly installed at both ends of the main rod, a water tank fixedly installed on the top of the C-shaped mounting blocks, an inlet pipe fixedly installed on the top of the water tank, a protective cover provided on the inlet pipe, a transmission box fixedly installed on the inner bottom of the water tank, a connecting seat provided on one side of the C-shaped mounting blocks, and a cooling mechanism provided on the transmission box, the cooling mechanism including a worm gear rotatably installed inside the transmission box.

[0008] Preferably, the cooling mechanism further includes a worm gear, a pressure plate, a return spring, a one-way valve, a guide tube, a nozzle, and an eccentric wheel. A worm gear is rotatably mounted inside the transmission box, and the worm meshes with the worm gear. Eccentric wheels are fixedly mounted on both ends of the worm gear extending to the outside of the water tank. A pressure plate is slidably mounted inside the water tank. Four sets of return springs are fixedly mounted on the bottom of the pressure plate in a rectangular arrangement. One end of each return spring is fixedly connected to the bottom inner side of the transmission box. One-way valves are provided on both the front and rear sides of the water tank, communicating with the inside of the water tank. A guide tube is fixedly mounted on the output end of each one-way valve. Two sets of nozzles are fixedly mounted on the bottom inner side of the C-shaped mounting block, arranged front and rear. One end of the guide tube is fixedly connected to the input end of each nozzle.

[0009] Preferably, three sets of telescopic rods are fixedly installed on the inner bottom of the C-shaped mounting block and are distributed in a front-to-back manner. A lower positioning sleeve is fixedly installed on one end of the telescopic rod, and a tightening spring is fixedly installed on the inner bottom of the C-shaped mounting block. One end of the tightening spring is fixedly connected to the lower positioning sleeve.

[0010] Preferably, an installation rod is rotatably mounted on the inner top of the C-shaped mounting block, and an upper positioning sleeve is fixedly mounted on one end of the installation rod.

[0011] Preferably, a spherical block is provided between the upper positioning sleeve and the lower positioning sleeve, and a telescopic fixing rod is fixedly installed on the top of the spherical block. The telescopic fixing rod passes through the upper positioning sleeve and is fixedly connected to the worm gear. Connecting rods are fixedly installed on both the front and rear sides of the spherical block.

[0012] Preferably, one end of the connecting rod is fixedly mounted with a mounting plate, a connecting block is rotatably mounted between the mounting plates, and one side of the connecting block is fixedly connected to the connecting seat.

[0013] Preferably, the main rod is fitted with a clamp, and the top of the clamp has two sets of threaded grooves, with connecting bolts installed inside the threads of the threaded grooves.

[0014] Compared with the prior art, the beneficial effects of this utility model are:

[0015] (1) The universal coupling with spring clamping structure, through the combined use of worm, worm wheel, pressure plate, return spring, one-way valve, conduit, nozzle and so on, enables the device to drive the worm to rotate through the friction between the spherical block and the upper positioning sleeve when the spherical block rotates. This allows the device to control the pressure plate to squeeze the water in the water tank and spray it out through the nozzle, thereby cooling the clamping spring. This allows the clamping spring to work better in high temperature environments and improves the practicality of the device.

[0016] (2) The universal coupling with spring clamping structure uses the combination of upper positioning sleeve, mounting rod, lower positioning sleeve, ball block, telescopic rod and clamping spring to enable the clamping spring to continuously clamp the lower positioning sleeve, thereby reducing the gap between the ball block and the upper and lower positioning sleeves, preventing the ball block from being damaged due to the gap between it and the upper and lower positioning sleeves when rotating, thus improving the service life of the device and improving its practicality. Attached Figure Description

[0017] The present invention will be further described below with reference to the accompanying drawings and embodiments:

[0018] Figure 1 This is the front view of the present invention;

[0019] Figure 2 This is a first sectional view of the present invention;

[0020] Figure 3 This is a second sectional view of the present invention;

[0021] Figure 4 for Figure 2 Enlarged view of part A in the image;

[0022] Figure 5 for Figure 3 Enlarged view of part B in the image.

[0023] Reference numerals: 1. Main rod; 2. Clamp; 3. Connecting bolt; 4. C-shaped mounting block; 5. Connecting rod; 6. Mounting plate; 7. Connecting seat; 8. Cooling mechanism; 801. Worm gear; 802. Worm wheel; 803. Pressure plate; 804. Return spring; 805. One-way valve; 806. Conduit; 807. Nozzle; 808. Eccentric wheel; 9. Water tank; 10. Inlet pipe; 11. Connecting block; 12. Transmission box; 13. Upper positioning sleeve; 14. Mounting rod; 15. Lower positioning sleeve; 16. Spherical block; 17. Telescopic rod; 18. Tightening spring. Detailed Implementation

[0024] This section will describe in detail the specific embodiments of the present utility model. The preferred embodiments of the present utility model are shown in the accompanying drawings. The purpose of the drawings is to supplement the textual description with graphics, so that people can intuitively and vividly understand each technical feature and the overall technical solution of the present utility model, but they should not be construed as limiting the scope of protection of the present utility model.

[0025] Please see Figure 1-5 This utility model provides a technical solution: a universal coupling with a spring-loaded clamping structure, comprising a main rod 1, with C-shaped mounting blocks 4 fixedly installed at both ends of the main rod 1, a water tank 9 fixedly installed on the top of the C-shaped mounting blocks 4, an inlet pipe 10 fixedly installed on the top of the water tank 9, a protective cover provided on the inlet pipe 10, a transmission box 12 fixedly installed on the inner bottom of the water tank 9, a connecting seat 7 provided on one side of the C-shaped mounting blocks 4, and a cooling mechanism 8 provided on the transmission box 12, the cooling mechanism 8 including a worm gear 801 rotatably installed inside the transmission box 12. The cooling mechanism 8 also includes a worm gear 802, a pressure plate 803, a return spring 804, a one-way valve 805, a conduit 806, a nozzle 807, and an eccentric wheel 808. This allows the device to drive the worm gear 801 to rotate through the friction between the spherical block 16 and the upper positioning sleeve 13 when the spherical block 16 rotates. This, in turn, allows the pressure plate 803 to squeeze water out of the water tank 9 and spray it out through the nozzle 807, thereby cooling the top spring 18. This enables the top spring 18 to operate better in high-temperature environments and improves the practicality of the device.

[0026] like Figure 4 and Figure 5 As shown, three sets of telescopic rods 17 are fixedly installed on the inner bottom of the C-shaped mounting block 4 and are distributed in a front-to-back manner. A lower positioning sleeve 15 is fixedly installed at one end of the telescopic rod 17. A tightening spring 18 is fixedly installed on the inner bottom of the C-shaped mounting block 4. One end of the tightening spring 18 is fixedly connected to the lower positioning sleeve 15, so that the tightening spring 18 can continuously tighten the lower positioning sleeve 15, thereby reducing the gap between the spherical block 16 and the upper positioning sleeve 13 and the lower positioning sleeve 15. This prevents the spherical block 16 from being damaged due to the gap between it and the upper positioning sleeve 13 and the lower positioning sleeve 15 when rotating, thus improving the service life of the device and enhancing its practicality.

[0027] like Figure 4 and Figure 5As shown, an installation rod 14 is rotatably mounted on the inner top of the C-shaped mounting block 4. An upper positioning sleeve 13 is fixedly mounted on one end of the mounting rod 14. A spherical block 16 is provided between the upper positioning sleeve 13 and the lower positioning sleeve 15. A telescopic fixing rod is fixedly mounted on the top of the spherical block 16. The telescopic fixing rod passes through the upper positioning sleeve 13 and is fixedly connected to the worm gear 801. Connecting rods 5 are fixedly mounted on both the front and rear sides of the spherical block 16, so that the device can automatically drive the cooling mechanism 8 to run and cool the top spring 18 as the spherical block 16 rotates. This optimizes the cooling steps of the device and improves the practicality of the device.

[0028] like Figure 1 and Figure 2 As shown, a mounting plate 6 is fixedly installed at one end of the connecting rod 5, and a connecting block 11 is rotatably installed between the mounting plates 6. One side of the connecting block 11 is fixedly connected to the connecting seat 7, which allows the connecting seat 7 to rotate to a greater extent and improves the practicality of the device.

[0029] like Figure 1 As shown, a clamp 2 is fitted on the main rod 1. The top of the clamp 2 has two sets of threaded grooves, and connecting bolts 3 are installed inside the threaded grooves. The clamp 2 can reinforce the main rod 1 and improve the stability of the device.

[0030] Working principle: In use, the clamp 2 is fitted onto the main rod 1. Connecting bolts 3 are installed inside the two sets of threaded grooves on the clamp 2 to fix the clamp 2 onto the main rod 1, thus reinforcing the main rod 1. Two sets of shafts requiring linkage are fixed to the connecting seat 7, allowing the device to act as a coupling. The upper positioning sleeve 13 and lower positioning sleeve 15 allow the spherical block 16 to rotate between them, which in turn allows rotation via the connecting rod 5 and mounting plate 6. The mounting plate 6 allows the connecting seat 7 to rotate more significantly. The tightening spring 18 drives multiple sets of telescopic rods 17 to tighten the lower positioning sleeve 15, thereby reducing the contact area between the spherical block 16 and the upper and lower positioning sleeves. The gap between sleeves 15 is designed to prevent collisions and damage during rotation due to the gap. By opening the protective cover on the inlet pipe 10, the inlet pipe 10 is connected to the water pipe of the water supply equipment, allowing water to be injected into the water tank 9. When the spherical block 16 rotates laterally, it drives the worm gear 801 to rotate, which in turn drives the two sets of eccentric wheels 808 to rotate through the worm wheel 802. This drives the pressure plate 803 to move longitudinally, allowing the pressure plate 803 to squeeze the water inside the water tank 9 and allow it to enter the conduit 806 through the one-way valve 805. The water can then enter the nozzle 807 through the conduit 806 and spray onto the top spring 18, thereby cooling the top spring 18 and preventing the spring force from decreasing due to increased temperature.

[0031] The embodiments of the present utility model have been described in detail above with reference to the accompanying drawings. However, the present utility model is not limited to the above embodiments. Within the scope of knowledge possessed by those skilled in the art, various changes can be made without departing from the spirit of the present utility model.

Claims

1. A universal coupling with a spring-loaded clamping structure, comprising a main rod (1), characterized in that, Both ends of the main rod (1) are fixedly installed with C-shaped mounting blocks (4), a water tank (9) is fixedly installed on the top of the C-shaped mounting block (4), an inlet pipe (10) is fixedly installed on the top of the water tank (9), a protective cover is provided on the inlet pipe (10), a transmission box (12) is fixedly installed on the bottom inner side of the water tank (9), a connecting seat (7) is provided on one side of the C-shaped mounting block (4), a cooling mechanism (8) is provided on the transmission box (12), and the cooling mechanism (8) includes a worm gear (801) rotatably installed inside the transmission box (12).

2. A universal coupling with a spring-loaded clamping structure according to claim 1, characterized in that: The cooling mechanism (8) also includes a worm gear (802), a pressure plate (803), a return spring (804), a one-way valve (805), a conduit (806), a nozzle (807), and an eccentric wheel (808). The worm gear (802) is rotatably installed inside the transmission box (12), and the worm (801) meshes with the worm gear (802). The two ends of the worm gear (802) extend to the outside of the water tank (9), and the eccentric wheel (808) is fixedly installed. The pressure plate (803) is slidably installed inside the water tank (9). The bottom of the pressure plate (803) Four sets of return springs (804) are fixedly installed in a rectangular arrangement. One end of the return spring (804) is fixedly connected to the bottom inner side of the transmission box (12). One-way valves (805) are provided on both the front and rear sides of the water tank (9). The one-way valves (805) are connected to the interior of the water tank (9). A conduit (806) is fixedly installed at the output end of the one-way valve (805). Two sets of nozzles (807) are fixedly installed on the bottom inner side of the C-shaped mounting block (4) and are arranged in a front-to-back arrangement. One end of the conduit (806) is fixedly connected to the input end of the nozzle (807).

3. A universal coupling with a spring-loaded clamping structure according to claim 1, characterized in that: Three sets of telescopic rods (17) are fixedly installed on the inner bottom of the C-shaped mounting block (4) and are distributed in front and behind. A lower positioning sleeve (15) is fixedly installed on one end of the telescopic rod (17), and a top spring (18) is fixedly installed on the inner bottom of the C-shaped mounting block (4). One end of the top spring (18) is fixedly connected to the lower positioning sleeve (15).

4. A universal coupling with a spring-loaded clamping structure according to claim 2, characterized in that: An installation rod (14) is rotatably mounted on the top inner side of the C-shaped mounting block (4), and an upper positioning sleeve (13) is fixedly mounted on one end of the installation rod (14).

5. A universal coupling with a spring-loaded clamping structure according to claim 4, characterized in that: A spherical block (16) is provided between the upper positioning sleeve (13) and the lower positioning sleeve (15). A telescopic fixing rod is fixedly installed on the top of the spherical block (16). The telescopic fixing rod passes through the upper positioning sleeve (13) and is fixedly connected to the worm gear (801). Connecting rods (5) are fixedly installed on both the front and rear sides of the spherical block (16).

6. A universal coupling with a spring-loaded clamping structure according to claim 5, characterized in that: One end of the connecting rod (5) is fixedly installed with an mounting plate (6), and a connecting block (11) is rotatably installed between the mounting plates (6). One side of the connecting block (11) is fixedly connected to the connecting seat (7).

7. A universal coupling with a spring-loaded clamping structure according to claim 1, characterized in that: The main rod (1) is fitted with a clamp (2), and the top of the clamp (2) is provided with two sets of threaded grooves, and the internal threads of the threaded grooves are fitted with connecting bolts (3).

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