Duckbilled hydraulic jack

Abstract

The utility model relates to the technical field of hydraulic jacks, and discloses a duckbilled hydraulic jack which comprises a base, a driving piece is fixedly installed at the top of the base, a jack body is fixedly installed at the top of the base, and an adjusting screw rod is installed in the output end of the jack body in a threaded mode. A supporting plate is arranged at the top of the adjusting screw rod, a tension spring is movably installed between the side face of the supporting plate and the base, a sliding rail is fixedly installed on the side face of the jack body, a guide rail is slidably installed in the sliding rail, and the guide rail is fixedly connected with the side face of the supporting plate. The stud is twisted in the threaded groove, then the connecting block at the bottom of the supporting plate is arranged on the square block in a sleeving mode and presses the supporting plate downwards, rotation of the supporting plate can be prevented through the square block and the square groove, meanwhile, the spring pushes the clamping head to be inserted into the clamping groove in the inner wall of the square groove, the connecting block and the square block can be locked, and rapid installation and firm locking of the supporting plate are achieved.

Description

Technical Field

[0001] The utility model relates to the technical field of hydraulic jacks, in particular to a duckbill type hydraulic jack. Background Art

[0002] Duckbill hydraulic jack is an important hydraulic component widely used in load-carrying vehicles or mobile equipment to support the weight of the equipment and adjust the level of the equipment.

[0003] The duckbill hydraulic jack lifts heavy objects within a small stroke through the top support seat or the bottom support claw. When using the bottom to lift the heavy object, a Z-shaped support plate is fixedly installed on the top of the jack, and the bottom end of the Z-shaped support plate is shoveled into the bottom of the object, and then the jack starts to lift. However, the connection between the Z-shaped support plate and the top of the jack is not strong enough, which will cause the position of the Z-shaped support plate to shift, and then lead to failure to lift the object. Utility Model Content

[0004] 1. Technical issues to be solved

[0005] In view of the deficiencies in the prior art, the utility model provides a duckbill type hydraulic jack, which has the advantages of firm connection and no deviation, and solves the above-mentioned problems.

[0006] (II) Technical solution

[0007] In order to achieve the purpose of the above-mentioned connection being firm and not deviating, the utility model provides the following technical solutions: a duckbill hydraulic jack, comprising a base, a driving member is fixedly installed on the top of the base, a jack body is fixedly installed on the top of the base, an adjusting screw is threadedly installed on the internal thread of the output end of the jack body, a support plate is arranged on the top of the adjusting screw, a tension spring is movably installed between the side surface of the support plate and the base, a slide rail is fixedly installed on the side surface of the jack body, a guide rail is slidably installed inside the slide rail, and the guide rail is connected to the side surface of the support plate. The top of the adjusting screw is provided with a threaded groove, the internal thread of the threaded groove is connected with a stud, the top of the stud is fixedly installed with a block, the top of the block is fitted with a connecting block, the bottom of the connecting block is provided with a square groove corresponding to the block, grooves are provided on both sides of the block, a limit ring is fixedly installed at the opening of the groove, a clamping head is inserted into the inside of the limit ring, a limit plate is fixedly installed on one end of the clamping head, a spring is provided on the side of the limit plate, and the inner wall of the square groove is provided with a clamping groove corresponding to the clamping head.

[0008] Preferably, the base, the driving member and the jack body are interconnected.

[0009] Preferably, the top of the adjusting screw extends to the outside of the output end of the jack body.

[0010] Preferably, the top of the connecting block is fixedly mounted to the bottom of the support plate, the cross-section of the support plate is Z-shaped, the bottom end of the support plate is located in the notch on the side of the base, and the support plate is connected to the jack body in an up and down sliding manner through guide rails and slide rails.

[0011] Preferably, the connecting blocks are assembled and mounted on each other through square grooves and square blocks.

[0012] Preferably, the connecting block is clamped with the block via a clamping head and a clamping groove.

[0013] Preferably, the clamp head and the spring are located inside the groove, and the end of the clamp head inserted into the groove is semi-spherical.

[0014] (III) Beneficial effects

[0015] Compared with the prior art, the utility model provides a duckbill hydraulic jack, which has the following

[0016] Beneficial effects:

[0017] 1. For the duckbill hydraulic jack, the support plate slides up and down along the side of the jack body through the guide rails and the slide rails. This process not only guides the up and down sliding of the support plate, but also the position of the support plate will not be offset.

[0018] 2. The duckbill hydraulic jack is first twisted in the threaded groove by the stud, and then the connecting block at the bottom of the pallet is put on the block and the pallet is pressed down. The block and the square groove can prevent the rotation of the pallet. At the same time, the spring push card head is inserted into the groove on the inner wall of the square groove to lock the connecting block and the block, so as to achieve rapid installation and firm locking of the pallet. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a schematic diagram of the three-dimensional structure of the utility model;

[0020] Figure 2 This is a schematic diagram of the structure of the utility model after removing the support plate;

[0021] Figure 3 This is a schematic diagram of the exploded structure between the adjusting screw and the stud of the utility model;

[0022] Figure 4 This is a schematic diagram of the exploded structure of the blocks and connecting blocks of the utility model when viewed from above;

[0023] Figure 5 It is a schematic diagram of the exploded structure between the block and the clamping head of the utility model.

[0024] In the figure: 1. base; 2. driving part; 3. jack body; 4. adjusting screw; 5. support plate; 6. tension spring; 7. slide rail; 8. guide rail; 9. threaded groove; 10. stud; 11. block; 12. connecting block; 13. square groove; 14. groove; 15. spring; 16. limit plate; 17. clamping head; 18. limit ring; 19. clamping groove. DETAILED DESCRIPTION

[0025] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in 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.

[0026] See also Figure 1-2 A duckbill hydraulic jack comprises a base 1, a driving member 2 is fixedly installed on the top of the base 1, a jack body 3 is fixedly installed on the top of the base 1, the base 1, the driving member 2 and the jack body 3 are connected to each other, and a tool is used to pressurize the driving member 2, and the driving member 2 can drive the medium in the base 1 into the interior of the jack body 3, and the output shaft will rise; an adjusting screw 4 is threadedly installed on the internal thread of the output end of the jack body 3, and the top of the adjusting screw 4 extends to the outside of the output end of the jack body 3. By rotating the adjusting screw 4, the adjusting screw 4 can be raised or lowered, and then compensation is given when the position is insufficient; a supporting plate 5 is arranged on the top of the adjusting screw 4, and the cross section of the supporting plate 5 is in a Z shape. The bottom end of the supporting plate 5 is located in the notch on the side of the base 1, and the bottom end of the supporting plate 5 is inserted into the bottom of the object, so that the object can be lifted.

[0027] See also Figure 1-2 A tension spring 6 is movably installed between the side of the support plate 5 and the base 1, a slide rail 7 is fixedly installed on the side of the jack body 3, and a guide rail 8 is slidably installed inside the slide rail 7. The guide rail 8 is fixedly connected to the side of the support plate 5. The support plate 5 is connected to the jack body 3 in an up and down sliding manner through the guide rail 8 and the slide rail 7 to ensure that the support plate 5 will not shake or shift its position during the up and down sliding process.

[0028] See also Figure 3-4A thread groove 9 is provided on the top of the adjusting screw 4, and a stud 10 is connected to the internal thread of the thread groove 9. A block 11 is fixedly installed on the top of the stud 10, and the block 11 can be disassembled and installed through the stud 10; a connecting block 12 is set on the top of the block 11, and the top of the connecting block 12 is fixedly installed on the bottom surface of the support plate 5. A square groove 13 corresponding to the block 11 is provided on the bottom of the connecting block 12. The connecting block 12 is combined and set with the block 11 through the square groove 13. The square characteristics can be used to limit the installed support plate 5 to prevent position deviation.

[0029] See also Figure 3-4 , grooves 14 are provided on both sides of the block 11, and a limit ring 18 is fixedly installed at the opening of the groove 14. A clamping head 17 is inserted inside the limit ring 18, and a limit plate 16 is fixedly installed at one end of the clamping head 17. A spring 15 is provided on the side of the limit plate 16. The clamping head 17 and the spring 15 are located inside the groove 14. A clamping groove 19 corresponding to the clamping head 17 is provided on the inner wall of the square groove 13. The end of the clamping head 17 inserted into the clamping groove 19 is semi-spherical, and the connecting block 12 is clamped with the block 11 through the clamping head 17 and the clamping groove 19.

[0030] Working principle: When in use, first twist the stud 10 in the threaded groove 9 to install the block 11, and then use the connecting block 12 at the bottom of the support plate 5 to fit on the block 11 and press down the support plate 5. The characteristics of the block 11 and the square groove 13 can prevent the rotation of the support plate 5. At the same time, the spring 15 pushes the card head 17 to insert into the card groove 19 on the inner wall of the square groove 13, so that the connecting block 12 and the block 11 can be locked, so that the support plate 5 can be quickly installed and firmly locked.

[0031] On the contrary, by pulling up the support plate 5, the clamping head 17 is no longer inserted into the clamping groove 19, and the connecting block 12 and the block 11 are separated and unlocked, so that the support plate 5 can be disassembled, and then the stud 10 can be removed from the top of the adjusting screw 4 by rotating, so as to facilitate the subsequent installation of other supports on the top of the adjusting screw 4.

[0032] The support plate 5 slides up and down along the side of the jack body 3 through the guide rail 8 and the slide rail 7. This process not only guides the up and down sliding of the support plate 5, but also prevents the position of the support plate 5 from being offset.

[0033] 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 duckbill hydraulic jack, comprising a base (1), characterized in that: A driving member (2) is fixedly mounted on the top of the base (1), a jack body (3) is fixedly mounted on the top of the base (1), an adjusting screw (4) is threadedly mounted on the inner part of the output end of the jack body (3), a supporting plate (5) is arranged on the top of the adjusting screw (4), a tension spring (6) is movably mounted between the side of the supporting plate (5) and the base (1), a sliding rail (7) is fixedly mounted on the side of the jack body (3), a guide rail (8) is slidably mounted inside the sliding rail (7), the guide rail (8) is fixedly connected to the side of the supporting plate (5), a threaded groove (9) is provided on the top of the adjusting screw (4), and a screw is threadedly mounted inside the threaded groove (9). A column (10) is provided, a block (11) is fixedly mounted on the top of the stud (10), a connecting block (12) is mounted on the top of the block (11), a square groove (13) corresponding to the block (11) is provided at the bottom of the connecting block (12), grooves (14) are provided on both sides of the block (11), a limit ring (18) is fixedly mounted at the opening of the groove (14), a clamping head (17) is inserted into the interior of the limit ring (18), a limit plate (16) is fixedly mounted on one end of the clamping head (17), a spring (15) is provided on the side of the limit plate (16), and a clamping groove (19) corresponding to the clamping head (17) is provided on the inner wall of the square groove (13).

2. A duckbill hydraulic jack according to claim 1, characterized in that: The base (1), the driving member (2) and the jack body (3) are interconnected.

3. A duckbill hydraulic jack according to claim 1, characterized in that: The top of the adjusting screw rod (4) extends to the outside of the output end of the jack body (3).

4. A duckbill hydraulic jack according to claim 1, characterized in that: The top of the connecting block (12) is fixedly mounted on the bottom surface of the support plate (5); the cross section of the support plate (5) is in a Z shape; the bottom end of the support plate (5) is located in a notch on the side of the base (1); the support plate (5) is connected to the jack body (3) in an up-and-down sliding manner via a guide rail (8) and a slide rail (7).

5. The duckbill hydraulic jack according to claim 1, characterized in that: The connecting block (12) is assembled and sleeved with the square block (11) via the square groove (13).

6. The duckbill hydraulic jack according to claim 1, characterized in that: The connecting block (12) is mutually clamped with the block (11) via a clamping head (17) and a clamping groove (19).

7. The duckbill hydraulic jack according to claim 1, characterized in that: The clamping head (17) and the spring (15) are located inside the groove (14), and one end of the clamping head (17) inserted into the clamping groove (19) is in a semi-spherical shape.

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