CN210559094U

CN210559094U - Hydraulic jack

Info

Publication number: CN210559094U
Application number: CN201921176524.0U
Authority: CN
Inventors: 吴兴海
Original assignee: Hangzhou Kangda Tools Co Ltd
Current assignee: Hangzhou Kangda Tools Co Ltd
Priority date: 2019-07-24
Filing date: 2019-07-24
Publication date: 2020-05-19
Anticipated expiration: 2029-07-24

Abstract

The utility model relates to a hydraulic jack, which comprises a bottom plate, a jack body is fixedly connected on the bottom plate, a tightening mechanism is arranged on the telescopic end of the jack body, the tightening mechanism comprises a tightening plate arranged on the end surface of the telescopic end of the jack body, a step groove arranged on the lower surface of the tightening plate, and a clamping member arranged between the tightening plate and the telescopic end of the jack body, the telescopic end of the jack body is embedded in the step groove, a tightening plate is arranged on the telescopic end of the jack body, the step groove is arranged on the tightening plate, the telescopic end of the jack body is embedded in the step groove, the tightening plate is clamped on the jack body through the clamping member, through the arrangement, when the jack is used, the tightening plate is arranged on the telescopic end of the jack body, the telescopic end of the jack body is tightly abutted on an article through the tightening plate, the contact area between the jack and the article is increased, the stability of the jack with the telescopic end abutting against the object is improved.

Description

Hydraulic jack

Technical Field

The utility model belongs to the technical field of the technique of jack and specifically relates to a hydraulic jack is related to.

Background

The hydraulic jack is also called oil jack, and is a jack which adopts a plunger or a hydraulic cylinder as a rigid jacking piece. Simple hoisting equipment is generally only provided with a hoisting mechanism for hoisting heavy objects. Simple structure, light weight, portability and convenient movement. Common simple lifting devices are equipped with hydraulic jacks, trolleys and winches.

In the use process, the telescopic end of the jack is tightly propped against an article, and the telescopic end of the jack is unstable in propping against the article due to the small area of the telescopic end of the jack.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing a, it has the effect that has improved the flexible end of jack and has supported the stability tightly on article.

The above utility model discloses an above-mentioned utility model purpose can realize through following technical scheme:

the utility model provides a hydraulic jack, includes the bottom plate, fixedly connected with jack body on the bottom plate the flexible serving of jack body is equipped with one and supports tight mechanism, support tight mechanism including installing support tight board on the flexible end terminal surface of jack body, set up at the ladder groove on supporting tight board lower surface, set up the clamping piece between supporting tight board and the flexible end of jack body, the flexible end of jack body inlays to be established in the ladder groove.

Through adopting above-mentioned technical scheme, through installing one on the flexible end of jack body and supporting tight board, set up the ladder groove on supporting tight board, the flexible end of jack body inlays and establishes in the ladder groove, will support tight board through the clamping piece and press from both sides tightly on the jack body, through such setting, when using the jack, install one on the flexible end of jack body and support tight board, the flexible end of jack body supports tightly on article through supporting tight board, the area of contact between jack and the article has been improved, the flexible end of jack has been improved and has been supported tightly the stability on article.

The utility model discloses further set up to: the clamping piece comprises a plurality of groups of clamping plates fixedly connected to the surface of the abutting plate, a clamping ring fixedly connected to one end, far away from the abutting plate, of the clamping plate, and a clamping assembly arranged between the clamping ring and the telescopic end of the jack body, the clamping plate is located on the side wall of the telescopic end of the jack body, and the clamping ring is connected to the telescopic end of the jack body in a sliding mode.

Through adopting above-mentioned technical scheme, through a plurality of groups of clamp plates of fixed connection on supporting tight board lower surface, the clamp plate sets up along the flexible end outer wall circumference of jack body, keep away from at the clamp plate and support one of the flexible end fixed connection clamp ring of tight board, clamp ring sliding connection is served at jack body is flexible, fix the clamp ring on the flexible end of jack body through locking Assembly, through such setting, simple structure, convenient operation has made things convenient for installation and dismantlement to supporting tight board.

The utility model discloses further set up to: the clamping assembly comprises an embedded groove formed in the outer wall of the clamping ring, a ball slidably embedded in the embedded groove, and a driving part arranged on the outer wall of the clamping ring and used for driving the ball to abut against the outer wall of the telescopic end of the jack body.

Through adopting above-mentioned technical scheme, slide in the caulking groove through drive division drive ball, the ball supports tightly on the flexible end outer wall of jack body after sliding in the caulking groove, through such setting, simple structure, convenient operation has made things convenient for the operator to fix the clamp ring on the flexible end of jack body.

The utility model discloses further set up to: the driving part comprises a driving sleeve which is connected on the outer wall of the clamping ring in a sliding way, a driving ring which is fixedly connected on the inner wall of the driving sleeve, an internal thread which is fixedly connected on the inner wall of the driving sleeve and an external thread which is fixedly connected on the outer wall of the clamping ring, wherein the internal thread and the external thread are meshed.

Through adopting above-mentioned technical scheme, through the cooperation of internal thread and external screw thread, the drive cover drives the drive ring motion drive ring and drives the ball and slide in the caulking groove, through such setting, simple structure, convenient operation has made things convenient for the operator to drive the ball and has supported tightly on the flexible end outer wall of jack body.

The utility model discloses further set up to: and a guide surface is arranged on the end surface of one end of the driving ring close to the ball, and the guide surface is arranged towards the ball.

Through adopting above-mentioned technical scheme, through set up a spigot surface on the one end terminal surface that is close to the ball at the drive ring, the spigot surface is seted up towards the ball, and the drive ring passes through spigot surface drive ball motion, through such setting, simple structure, convenient operation has improved the stability of drive ring drive ball motion.

The utility model discloses further set up to: the bottom plate is provided with a fixing mechanism for fixing the abutting plate, the fixing mechanism comprises a fixing groove formed in the bottom plate and abutting pieces arranged on the side walls of the fixing groove and used for abutting against the side walls of the abutting plate, and one end of the abutting plate is embedded in the fixing groove.

Through adopting above-mentioned technical scheme, through seting up a fixed slot on the bottom plate, set up on the fixed slot lateral wall and support the piece, will support the grip block and inlay and establish in the fixed slot, will support the grip block through supporting the piece and support tightly in the fixed slot, through such setting, when not using the jack, can will support the grip block and dismantle to get off and support tightly in the fixed slot, made things convenient for and placed to the grip block.

The utility model discloses further set up to: the abutting piece comprises an abutting groove formed in the side wall of the fixed groove, an abutting block connected in the abutting groove in a sliding mode, and an abutting spring arranged between the abutting block and the bottom surface of the abutting groove, and the two ends of the abutting spring are fixedly connected to the abutting block and the bottom surface of the abutting groove respectively.

Through adopting above-mentioned technical scheme, through offering on the fixed slot lateral wall and supporting tight groove, sliding connection supports tight piece in supporting tight groove, supports tight piece and supports and set up and support tight spring between the tight bottom of groove, supports tight piece and supports tightly on supporting tight board lateral wall under the effect of supporting tight spring restoring force, through such setting, simple structure, convenient operation has improved and has supported the installation stability of tight board in the fixed slot.

The utility model discloses further set up to: an inclined plane is arranged on the upper surface of the end face of one end, far away from the abutting spring, of the abutting block and is arranged towards the jack body.

By adopting the technical scheme, the inclined plane is formed on the upper surface of one end, far away from the abutting spring, of the abutting block, and the abutting plate is convenient to drive the abutting block to compress the abutting spring by forming the inclined plane.

To sum up, the utility model discloses a beneficial technological effect does: the contact area between the jack and an object is increased, and the stability of the telescopic end of the jack abutting against the object is improved; the clamping ring is convenient for an operator to fix the clamping ring on the telescopic end of the jack body; the stability of the driving ring for driving the balls is improved.

Drawings

FIG. 1 is a schematic overall structure diagram of the first embodiment;

FIG. 2 is a sectional view showing the overall structure of a clamping assembly according to one embodiment;

fig. 3 is a schematic view of the overall structure of the second embodiment.

Reference numerals: 1. a base plate; 2. a jack body; 3. a tightening mechanism; 4. a propping plate; 5. a stepped groove; 6. a clamping member; 7. a clamping plate; 8. a clamping ring; 9. a clamping assembly; 10. caulking grooves; 11. a ball bearing; 12. a drive section; 13. a drive sleeve; 14. a drive ring; 15. an internal thread; 16. an external thread; 17. a guide surface; 18. a fixing mechanism; 19. fixing grooves; 20. an abutting piece; 21. abutting against the groove; 22. a propping block; 23. the spring is tightly propped; 24. an inclined surface; 25. a support sleeve; 26. a circular arc surface.

Detailed Description

The present invention will be described in further detail with reference to the accompanying drawings.

The first embodiment is as follows: as shown in fig. 1, for the utility model discloses a hydraulic jack, including bottom plate 1, fixedly connected with jack body 2 on bottom plate 1 is equipped with one on the flexible end terminal surface of jack body 2 and supports tight mechanism 3, is equipped with the fixed establishment 18 that is used for fixed tight mechanism 3 that supports on bottom plate 1.

As shown in fig. 1, the tightening mechanism 3 includes a tightening plate 4, a stepped groove 5 and a clamping member 6, the stepped groove 5 is formed on the lower surface of the tightening plate 4, one end of the telescopic end of the jack body 2 is embedded in the stepped groove 5, and the clamping member 6 is arranged between the tightening plate 4 and the telescopic end of the jack body 2 and is used for clamping the tightening plate 4 on the telescopic end of the jack body 2.

As shown in fig. 1, the clamping member 6 comprises a clamping plate 7, a clamping ring 8 and a clamping assembly 9, wherein a plurality of groups of clamping plates 7 are fixedly connected to the lower surface of the abutting plate 4, and the clamping plates 7 are circumferentially fixed along the side wall of the telescopic end of the jack body 2; clamping ring 8 fixed connection is kept away from in clamping plate 7 and is held one of tight board 4, and clamping ring 8 sliding connection is on the flexible end outer wall of jack body 2, and clamping component 9 sets up between clamping ring 8 and the flexible end outer wall of jack body 2, and clamping component 9 is used for fixing clamping ring 8 on the flexible end outer wall of jack body 2.

As shown in fig. 1 and 2, the clamping assembly 9 includes an insertion groove 10, a ball 11 and a driving portion 12, the insertion groove 10 is opened on a side wall of the clamping ring 8, a plurality of sets of insertion grooves 10 are opened along a circumferential direction of the side wall of the clamping ring 8, the ball 11 is slidably inserted in the insertion groove 10, the driving portion 12 is disposed on an outer wall of the clamping ring 8, the driving portion 12 is used for driving the ball 11 to slide in the insertion groove 10, and the driving portion 12 drives the ball 11 to abut against an outer wall of a telescopic end of the jack body 2.

As shown in fig. 1 and 2, the driving portion 12 includes a driving sleeve 13, a driving ring 14, an internal thread 15 and an external thread 16, the driving sleeve 13 is slidably connected to the outer wall of the clamping ring 8, the driving ring 14 is fixedly connected to the inside of the driving sleeve 13, the internal thread 15 is fixedly connected to the inner wall of the driving sleeve 13, the external thread 16 is fixedly connected to the outer wall of the clamping ring 8, and the driving sleeve 13 drives the driving ring 14 to drive the balls 11 to move through the engagement between the internal thread 15 and the external thread 16.

As shown in fig. 1 and 2, in order to improve the stability of the driving ring 14 driving the balls 11, a guide surface 17 is formed on an end surface of the driving ring 14 near the balls 11, the guide surface 17 is formed toward the balls 11, and the driving ring 14 drives the balls 11 to move through the guide surface 17.

As shown in fig. 1, the fixing mechanism 18 includes a fixing groove 19 and a fastening member 20, the fixing groove 19 is formed on the upper surface of the bottom plate 1, one end of the fastening plate 4 is embedded in the fixing groove 19, the fastening member 20 is disposed on the side wall of the fixing groove 19, and the fastening member 20 is used for fastening the fastening plate 4 in the fixing groove 19.

As shown in fig. 1, the tightening member 20 includes a tightening groove 21, a tightening block 22 and a tightening spring 23, the tightening groove 21 is formed on the sidewall of the fixing groove 19, the tightening block 22 is slidably connected to the tightening groove 21, the tightening spring 23 is disposed between the tightening block 22 and the bottom surface of the tightening groove 21, two ends of the tightening spring 23 are respectively and fixedly connected to the tightening block 22 and the bottom surface of the tightening groove 21, and the tightening block 22 is tightened against the sidewall of the tightening plate 4 under the restoring force of the tightening spring 23.

As shown in fig. 1, in order to facilitate the abutting plate 4 to drive the abutting block 22 to compress the abutting spring 23, an inclined surface 24 is formed on an upper surface of an end surface of the abutting block 22 away from the abutting spring 23, the inclined surface 24 is formed toward the jack body 2, and the abutting plate 4 drives the abutting block 22 to compress the abutting spring 23 through the inclined surface 24.

The implementation principle of the embodiment is as follows: when the jack is required to be used, the telescopic end of the jack body 2 is embedded in the stepped groove 5 on the abutting plate 4, the clamping ring 8 is connected to the telescopic end of the jack body 2 in a sliding mode, the driving sleeve 13 is rotated, and the driving sleeve 13 drives the driving ring 14 to drive the balls 11 to abut against the outer wall of the telescopic end of the jack body 2.

When the jack is not used, one end of the abutting plate 4 is embedded in the fixing groove 19, the abutting plate 4 drives the abutting block 22 to compress the abutting spring 23 through the inclined surface 24, and the abutting block 22 abuts against the side wall of the abutting plate 4 under the action of the restoring force of the abutting spring 23.

Example two: as shown in fig. 3, a hydraulic jack includes a bottom plate 1, a jack body 2 is fixedly connected to the bottom plate 1, a supporting sleeve 25 is sleeved on a telescopic end of the jack body 2, and an arc groove 26 is formed on an end surface of the supporting sleeve 25 far away from the jack body 2.

The embodiment of this specific implementation mode is the preferred embodiment of the present invention, not limit according to this the utility model discloses a protection scope, so: all equivalent changes made according to the structure, shape and principle of the utility model are covered within the protection scope of the utility model.

Claims

1. The utility model provides a hydraulic jack, includes bottom plate (1), fixedly connected with jack body (2), its characterized in that on bottom plate (1): jack body (2) stretch out and draw back to serve and be equipped with one and support tight mechanism (3), support tight mechanism (3) including install support tight board (4) on jack body (2) flexible end terminal surface, set up ladder groove (5) on supporting tight board (4) lower surface, set up clamping piece (6) between supporting tight board (4) and jack body (2) flexible end, jack body (2) flexible end inlays to be established in ladder groove (5).

2. A hydraulic jack as claimed in claim 1 wherein: the clamping piece (6) comprises a plurality of groups of clamping plates (7) fixedly connected to the surface of the abutting plate (4), a clamping ring (8) fixedly connected to one end, far away from the abutting plate (4), of the clamping plate (7), and a clamping assembly (9) arranged between the clamping ring (8) and the telescopic end of the jack body (2), the clamping plate (7) is located on the side wall of the telescopic end of the jack body (2), and the clamping ring (8) is connected to the telescopic end of the jack body (2) in a sliding mode.

3. A hydraulic jack as claimed in claim 2 wherein: the clamping assembly (9) comprises a caulking groove (10) formed in the outer wall of the clamping ring (8), a ball (11) embedded in the caulking groove (10) in a sliding mode, and a driving portion (12) arranged on the outer wall of the clamping ring (8) and used for driving the ball (11) to abut against the outer wall of the telescopic end of the jack body (2).

4. A hydraulic jack as claimed in claim 3 wherein: the driving part (12) comprises a driving sleeve (13) which is connected to the outer wall of the clamping ring (8) in a sliding mode, a driving ring (14) which is fixedly connected to the inner wall of the driving sleeve (13), an internal thread (15) which is fixedly connected to the inner wall of the driving sleeve (13) and an external thread (16) which is fixedly connected to the outer wall of the clamping ring (8), and the internal thread (15) and the external thread (16) are meshed.

5. A hydraulic jack as claimed in claim 4 wherein: a guide surface (17) is arranged on one end face of the driving ring (14) close to the balls (11), and the guide surface (17) is arranged towards the balls (11).

6. A hydraulic jack as claimed in claim 1 wherein: be equipped with a fixed establishment (18) that is used for the fixed board (4) that supports tightly on bottom plate (1), fixed establishment (18) are used for supporting tightly supporting piece (20) on supporting board (4) lateral wall including offering fixed slot (19) on bottom plate (1), setting on fixed slot (19) lateral wall, support board (4) one end and inlay and establish in fixed slot (19).

7. The hydraulic jack of claim 6, wherein: the abutting piece (20) comprises an abutting groove (21) formed in the side wall of the fixing groove (19), an abutting block (22) connected into the abutting groove (21) in a sliding mode, and an abutting spring (23) arranged between the abutting block (22) and the bottom surface of the abutting groove (21), and the two ends of the abutting spring (23) are fixedly connected to the abutting block (22) and the bottom surface of the abutting groove (21) respectively.

8. The hydraulic jack of claim 7, wherein: an inclined surface (24) is arranged on the upper surface of the end face of one end, far away from the abutting spring (23), of the abutting block (22), and the inclined surface (24) is arranged towards the jack body (2).