Novel high-thrust integrated hand-cranking linear driver

Abstract

The utility model relates to the technical field of drivers, in particular to a novel high-thrust integrated hand-cranking linear driver which comprises an aluminum alloy guide pipe, an integrated hand-cranking lead screw is installed in the aluminum alloy guide pipe, a sliding block and a waterproof sealing cover are arranged at one end of the aluminum alloy guide pipe, the sliding block and the waterproof sealing cover are both connected with the integrated hand-cranking lead screw, and the integrated hand-cranking lead screw is connected with the aluminum alloy guide pipe. The other end of the aluminum alloy guide pipe is installed in a shell, a motor is installed at the bottom of the shell, a rear end installation base is fixed to one end of the shell, and one end of the integrated hand-cranking lead screw is connected with a crank in a matched mode. The novel large-thrust integrated hand-cranking linear driver has the advantages that the hexagonal hand-cranking shaft is machined at the front end of the screw rod body, the gear is fixed in a cylindrical pin mode, the gear sliding block is arranged on the screw rod body, the novel large-thrust integrated hand-cranking linear driver can be lifted through the hand-cranking function in the emergency power failure or power-free environment, the novel large-thrust integrated hand-cranking linear driver can cope with various power-free use environments, and the novel large-thrust integrated hand-cranking linear driver is convenient to use. The integrated hand-cranking shaft effectively solves the problem that the fault rate of the connecting position of the hand-cranking shaft and the lead screw is high.

Description

Technical Field

[0001] The utility model relates to the technical field of drivers, in particular to a novel large-thrust integrated hand-cranked linear driver. Background Art

[0002] Most of the existing linear actuators are currently driven by motors, which cannot rise and fall normally in an environment without electricity and are greatly affected by environmental factors.

[0003] In the prior art, the rear end hand crank shaft is mostly a split hand crank shaft, and the screw rod and the hand crank shaft are mostly connected by a pin shaft or a threaded connection, which is easy to fall off or the pin shaft is broken, and the failure rate is relatively high. Problems may occur during use or cause certain impacts on users.

[0004] Therefore, we need a new type of large-thrust integrated hand-cranked linear actuator to solve the problem that the connection between the screw rod and the hand-cranked shaft of the existing hand-cranked linear actuator is easy to break, and to avoid the breakage of the connection between the screw rod and the hand-cranked shaft. Utility Model Content

[0005] The purpose of the utility model is to provide a novel large-thrust integrated hand-cranked linear actuator to solve the problem of easy breakage of the connection between the screw rod and the hand-cranked shaft of the existing hand-cranked linear actuator proposed in the above background technology, thereby avoiding the breakage of the connection between the screw rod and the hand-cranked shaft.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a new type of large-thrust integrated hand-cranked linear actuator, comprising an aluminum alloy conduit, an integrated hand-cranked screw rod is installed inside the aluminum alloy conduit, a slider and a waterproof sealing cover are provided at one end of the aluminum alloy conduit, the slider and the waterproof sealing cover are both connected to the integrated hand-cranked screw rod, the other end of the aluminum alloy conduit is installed in a shell, a motor is installed at the bottom of the shell, and a rear end mounting seat is fixed to one end of the shell, and one end of the integrated hand-cranked screw rod is cooperatively connected to a crank handle.

[0007] Preferably, the integrated hand-cranked screw rod includes a screw rod, a gear, a locating bearing, a locating bearing at the hand-cranked position, a cylindrical elastic pin, a slider, an anti-slip gasket and an anti-slip nut. The front end of the screw rod is integrally formed with a hexagonal hand-cranked shaft, and two grooves are symmetrically provided on the surface of the hexagonal hand-cranked shaft. The gear, the locating bearing and the locating bearing at the hand-cranked position are all sleeved on the screw rod, and the locating bearing and the locating bearing at the hand-cranked position are symmetrically distributed about the gear. A cylindrical elastic pin is inserted into the groove, the slider is sleeved on the rod body of the screw rod, the anti-slip gasket is provided at the rear end of the screw rod, the anti-slip nut is screwed to the rear end of the screw rod, and the anti-slip nut clamps the anti-slip gasket.

[0008] Preferably, a limit switch strip is fixed inside the screw rod, a waterproof sealing ring is fixed on the outer wall of the aluminum alloy conduit, and a pin is provided on the outer wall of the screw rod, a waterproof sealing cover is inserted into the rear end of the aluminum alloy conduit, and the outer wall of the rivet penetrates the aluminum alloy conduit and the waterproof sealing cover, and the waterproof sealing cover is fixed to the rear end of the aluminum alloy conduit, the waterproof sealing cover is sleeved on the round tube, and the rear end of the round tube is screwed with a front end screw plug, and after the round tube is inserted into the aluminum alloy conduit, the round tube is sleeved on the screw rod, and the round tube and the slider are connected in a cooperative manner.

[0009] Preferably, the shell includes a lower shell and an upper shell, a signal line is plugged into the bottom of the lower shell, the signal line is fixed in the lower shell by a motor fixing screw, the upper shell is fixed to the top of the lower shell by an upper shell fixing screw, a semicircular plate is integrally formed at one end of the lower shell and the upper shell, the two semicircular plates are connected by a hand-cranked fixing screw, a rear end mounting seat is fixed to the surface of the shell by a rear end mounting seat fixing screw, and the motor is fixed to the bottom surface of the lower shell.

[0010] Compared with the prior art, the beneficial effects of the utility model are:

[0011] The utility model proposes a new large-thrust integrated hand-cranked linear actuator; a hexagonal hand-cranked shaft is processed at the front end of the screw rod body, and the gear is fixed with a cylindrical pin. A gear slider is provided on the screw rod body, and the hand-cranked function can be used for lifting and lowering in an emergency power outage or in an environment without electricity. It can cope with various use environments without electricity, and the use of an integrated hand-cranked shaft effectively solves the problem of high failure rate at the connection between the hand-cranked shaft and the screw rod; it further solves the problem that the connection between the screw rod and the hand-cranked shaft of the existing hand-cranked linear actuator is easy to break, and the breakage of the connection between the screw rod and the hand-cranked shaft can be avoided. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 This is a schematic diagram of the structure of the integrated hand-cranked screw rod of the utility model;

[0013] Figure 2 This is a schematic diagram of the assembly structure of the catheter of the utility model;

[0014] Figure 3 This is a schematic diagram of the motor installation structure of the utility model;

[0015] Figure 4 This is an exploded schematic diagram of the structure of the utility model;

[0016] Figure 5 It is a schematic diagram of the structure of the utility model.

[0017] In the figure: 1. Screw; 2. Gear; 3. Positioning bearing; 4. Positioning bearing at hand crank; 5. Cylindrical elastic pin; 6. Slider; 7. Anti-drop gasket; 8. Anti-drop nut; 9. Limit switch strip; 10. Aluminum alloy conduit; 11. Pin; 12. Waterproof sealing ring; 13. Waterproof sealing cover; 14. Rivet; 15. Round tube; 16. Front end screw plug; 17. Lower shell; 18. Signal line; 19. Motor; 20. Motor fixing screw; 21. Upper shell; 22. Upper shell fixing screw; 23. Hand crank fixing screw; 24. Rear end mounting seat; 25. Rear end mounting seat fixing screw; 26. Crank handle. DETAILED DESCRIPTION

[0018] In order to make the purpose and technical solution of the utility model clearly and completely described, and the advantages more clearly understood, the embodiments of the utility model are further described in detail in conjunction with the accompanying drawings. It should be understood that the specific embodiments described here are part of the embodiments of the utility model, not all of the embodiments, and are only used to explain the embodiments of the utility model, and are not used to limit the embodiments of the utility model. All other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0019] See also Figures 1 to 5 The utility model provides a technical solution: a novel large-thrust integrated hand-cranked linear actuator, comprising an aluminum alloy conduit 10, an integrated hand-cranked screw rod is installed inside the aluminum alloy conduit 10, the integrated hand-cranked screw rod comprises a screw rod 1, a gear 2, a positioning bearing 3, a hand-cranked positioning bearing 4, a cylindrical elastic pin 5, a slider 6, an anti-slip gasket 7 and an anti-slip nut 8, the front end of the screw rod 1 is integrally formed with a hexagonal hand-cranked shaft, the surface of the hexagonal hand-cranked shaft is symmetrically provided with two grooves, the gear 2, the positioning bearing 3 and the hand-cranked positioning bearing 4 are all sleeved on the screw rod 1, and the hexagonal hand-cranked shaft has two grooves symmetrically arranged on the surface of the hexagonal hand-cranked shaft. The gear 2 is fixed firmly in place by the cylindrical pin 5, and the anti-dropping pad 7 is installed at the rear end of the screw rod 1.

[0020] A slider 6 and a waterproof sealing cover 13 are provided at one end of the aluminum alloy conduit 10. Both the slider 6 and the waterproof sealing cover 13 are connected to an integrated hand-cranked screw. A limit switch strip 9 is fixed inside the screw 1. A waterproof sealing ring 12 is fixedly sleeved on the outer wall of the aluminum alloy conduit 10, and a pin 11 is provided on the outer wall of the screw 1. The rear end of the aluminum alloy conduit 10 is plugged with a waterproof sealing cover 13, and the outer wall of the rivet 14 penetrates the aluminum alloy conduit 10 and the waterproof sealing cover 13, and the waterproof sealing cover 13 is fixed to the rear end of the aluminum alloy conduit 10. The waterproof sealing cover 13 is sleeved on the round tube 15, and the rear end of the round tube 15 is screwed with a front end screw plug 16. After the round tube 15 is inserted into the aluminum alloy conduit 10, the round tube 15 is sleeved on the screw 1, and the round tube 15 and the slider 6 are connected in cooperation; the front end of the aluminum alloy conduit 10 uses a rubber-coated waterproof sealing cover 13, and the waterproof sealing ring 12 on the aluminum alloy conduit 10 makes the upper shell 17 and the aluminum alloy conduit 10 contact more closely, which can effectively prevent dust and water splashes.

[0021] The other end of the aluminum alloy conduit 10 is installed in the shell, and a motor 19 is installed at the bottom of the shell, and a rear end mounting seat 24 is fixed to one end of the shell, and one end of the integrated hand crank screw is matched with a crank handle 26. The shell includes a lower shell 17 and an upper shell 21. A signal line 18 is plugged into the bottom of the lower shell 17, and the signal line 18 is fixed in the lower shell 17 by a motor fixing screw 20. The upper shell 21 is fixed to the top of the lower shell 17 by an upper shell fixing screw 22. One end of the lower shell 17 and the upper shell 21 are both integrally formed with a semicircular plate, and the two semicircular plates are connected by a hand crank fixing screw 23. The rear end mounting seat 24 is fixed to the surface of the shell by a rear end mounting seat fixing screw 25, and the motor 19 is fixed to the bottom surface of the lower shell 17.

[0022] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A novel large-thrust integrated hand-cranked linear actuator, comprising an aluminum alloy conduit (10), characterized in that: An integrated hand-crank screw is installed inside the aluminum alloy conduit (10), one end of the aluminum alloy conduit (10) is provided with a slider (6) and a waterproof sealing cover (13), the slider (6) and the waterproof sealing cover (13) are both connected to the integrated hand-crank screw, the other end of the aluminum alloy conduit (10) is installed in a shell, a motor (19) is installed at the bottom of the shell, and a rear end mounting seat (24) is fixed to one end of the shell, and one end of the integrated hand-crank screw is matched and connected to a crank handle (26).

2. According to claim 1, a novel large-thrust integrated hand-cranked linear actuator is characterized in that: The integrated hand-cranked screw comprises a screw (1), a gear (2), a positioning bearing (3), a hand-cranked positioning bearing (4), a cylindrical elastic pin (5), a slider (6), an anti-slip pad (7) and an anti-slip nut (8). The front end of the screw (1) is integrally formed with a hexagonal hand-cranked shaft, and the surface of the hexagonal hand-cranked shaft is symmetrically provided with two grooves. The gear (2), the positioning bearing (3) and the hand-cranked positioning bearing (4) are all sleeved on the screw (1), and the positioning bearing (3) and the hand-cranked positioning bearing (4) are symmetrically distributed with respect to the gear (2). The cylindrical elastic pin (5) is inserted in the groove, the slider (6) is sleeved on the rod body of the screw (1), the anti-slip pad (7) is provided at the rear end of the screw (1), the anti-slip nut (8) is screwed to the rear end of the screw (1), and the anti-slip nut (8) clamps the anti-slip pad (7).

3. According to claim 2, a novel large-thrust integrated hand-cranked linear actuator is characterized in that: A limit switch strip (9) is fixed inside the screw rod (1), a waterproof sealing ring (12) is sleeved and fixed on the outer wall of the aluminum alloy conduit (10), and a pin (11) is provided on the outer wall of the screw rod (1). A waterproof sealing cover (13) is inserted at the rear end of the aluminum alloy conduit (10), and the outer wall of the rivet (14) penetrates the aluminum alloy conduit (10) and the waterproof sealing cover (13), and the waterproof sealing cover (13) is fixed to the rear end of the aluminum alloy conduit (10). The waterproof sealing cover (13) is sleeved on the round tube (15), and the rear end of the round tube (15) is screwed with a front end screw plug (16). After the round tube (15) is inserted into the aluminum alloy conduit (10), the round tube (15) is sleeved on the screw rod (1), and the round tube (15) and the slider (6) are connected in a matching manner.

4. The novel large-thrust integrated hand-cranked linear actuator according to claim 1 is characterized in that: The shell comprises a lower shell (17) and an upper shell (21); a signal line (18) is plugged into the bottom of the lower shell (17); the signal line (18) is fixed in the lower shell (17) by a motor fixing screw (20); the upper shell (21) is fixed above the lower shell (17) by an upper shell fixing screw (22); a semicircular plate is integrally formed at one end of the lower shell (17) and the upper shell (21); the two semicircular plates are connected by a hand-cranked fixing screw (23); a rear end mounting seat (24) is fixed to the surface of the shell by a rear end mounting seat fixing screw (25); and the motor (19) is fixed to the bottom surface of the lower shell (17).

Images