阅读说明：本技术 便于操作的卧式千斤顶 (Horizontal jack convenient to operation ) 是由 沈如林 于 2021-09-15 设计创作，主要内容包括：本发明属于卧式千斤顶领域,公开了便于操作的卧式千斤顶,包括底座、液压组件、起重臂、托架和托盘,所述起重臂为伸缩可调式,所述托架的正面和背面均设置有伸缩式连杆,所述伸缩式连杆分别位于起重臂的前后,两个所述伸缩式连杆分别通过转轴与底座内壁的正面和背面转动连接,所述托盘的顶部可拆卸安装有增高组件,本方案通过将起重臂设计为伸缩可调式的并配合伸缩式连杆,使得托架和托盘的最低点位置可调,方便操作,能满足不同的是使用需求,提高适用范围,而在托盘的顶升高度不够时,可通过安装增高组件来进行辅助增高,以满足使用需求,适用范围广。(The invention belongs to the field of horizontal jacks, and discloses a horizontal jack convenient to operate, which comprises a base, a hydraulic component, a crane boom, a bracket and a tray, the cargo boom is telescopic and adjustable, the front and the back of the bracket are both provided with telescopic connecting rods, the telescopic connecting rods are respectively positioned at the front and the back of the cargo boom, the two telescopic connecting rods are respectively rotatably connected with the front surface and the back surface of the inner wall of the base through rotating shafts, the top of the tray is detachably provided with the heightening component, the lifting arm is designed to be telescopic and adjustable and is matched with the telescopic connecting rod, the lowest point positions of the bracket and the tray are adjustable, the operation is convenient, the use requirements can be met, the application range is improved, and when the jacking height of tray was not enough, the accessible installation increased the subassembly and assisted and increased to satisfy the user demand, application scope is wide.)

1. Horizontal jack convenient to operation, including base (1), hydraulic component (2), jib loading boom (3), bracket (4) and tray (5), its characterized in that: the crane boom is characterized in that the crane boom (3) is telescopic and adjustable, telescopic connecting rods (6) are arranged on the front side and the back side of the bracket (4), the telescopic connecting rods (6) are respectively positioned in the front and the back of the crane boom (3), the two telescopic connecting rods (6) are respectively connected with the front side and the back side of the inner wall of the base (1) through rotating shafts in a rotating mode, and a height increasing assembly (7) is detachably mounted at the top of the tray (5).

2. The horizontal jack easy to operate of claim 1, wherein: the jib loading boom (3) includes forearm (31) and postbrachium (32), forearm (31) are connected with bracket (4) through the pivot, postbrachium (32) are connected with base (1) through the pivot, recess (33) are seted up in the left side of postbrachium (32), the right-hand member of forearm (31) extends to in recess (33), be provided with flexible adjusting part (34) on postbrachium (32).

3. The horizontal jack easy to operate of claim 2, wherein: flexible regulation subassembly (34) are including rotating threaded rod (341) of installing on recess (33) rear side inner wall, thread groove (342) have been seted up on the right side of forearm (31), threaded rod (341) extend to in thread groove (342) and rather than threaded connection, threaded rod (341) are close to right-hand member department cover and are equipped with worm wheel (343) rather than fixed connection, the back meshing of worm wheel (343) has worm (344), the bottom of worm (344) is passed through the inner bottom wall fixed connection of bearing and recess (33), the bottom fixedly connected with of worm (344) revolves arm (345), the top of revolving arm (345) is run through and is extended to the top of postbrachium (32).

4. The horizontal jack easy to operate of claim 1, wherein: telescopic connecting rod (6) are including dead lever (61) and loop bar (62), the left end of dead lever (61) is connected with bracket (4) through the pivot, the right-hand member of dead lever (61) extends to in loop bar (62), the right-hand member of loop bar (62) is connected with base (1) through the pivot, guide slot (63) have all been seted up to the interior diapire and the interior diapire of loop bar (62), dead lever (61) are close to top and the equal fixedly connected with guide key (64) in bottom of right-hand member, two guide key (64) respectively with two guide slot (63) sliding connection.

5. The horizontal jack easy to operate of claim 1, wherein: increase subassembly (7) and include internal thread sleeve (71), internal thread sleeve (71) threaded connection is on tray (5), the top threaded connection of internal thread sleeve (71) has the screw thread to increase pole (72), the screw thread increases top fixedly connected with auxiliary supporting disk (73) of pole (72), unsmooth anti-skidding line (74) has been seted up at the top of auxiliary supporting disk (73).

6. The horizontal jack easy to operate of claim 1, wherein: four corners of the bottom of the base (1) are fixedly provided with trundles (8), and the trundles (8) are provided with brakes.

7. The horizontal jack easy to operate of claim 2, wherein: spout (35) have all been seted up to the interior roof and the interior diapire of recess (33), two equal sliding connection has slider (36) in spout (35), two slider (36) respectively with the top and the bottom fixed connection of forearm (31).

8. The horizontal jack convenient to operate of claim 4, wherein: a locking groove (65) is formed in one side, away from the crane boom (3), of the fixing rod (61), a supporting block (66) is arranged in the locking groove (65), a locking bolt (67) is fixedly connected to one side, away from the locking groove (65), of the supporting block (66), and the locking bolt (67) penetrates through and extends to the outer side of the loop bar (62).

9. The horizontal jack easy to operate of claim 8, wherein: and one side of the abutting block (66) far away from the locking bolt (67) is fixedly connected with an anti-skid pad.

Technical Field

The invention relates to the field of horizontal jacks, in particular to a horizontal jack convenient to operate.

Background

The horizontal jack is a light and small lifting device for lifting a heavy object in a stroke through a top tray, and is widely used in mechanical maintenance work. The hydraulic horizontal jack commonly seen in the market at present mainly comprises a frame, a hydraulic part, a jib part, a connecting rod and a press handle, wherein the jib part comprises a jib and a bracket arranged on the jib, one end of the connecting rod is pivotally connected to the frame, and the other end of the connecting rod is hinged to the bracket of the jib part. When the crane is lifted, the lifting arm component is pushed to be lifted up by the hydraulic component through repeatedly pressing down the pressing handle, and finally, the heavy object is lifted up by the bracket on the lifting arm.

However, the stroke of the existing hydraulic support is fixed in the using process, and when vehicles with different chassis heights need to be provided with jacks with different strokes, the operation is inconvenient, and the application range is small.

Disclosure of Invention

The invention aims to solve the defects in the prior art and provides a horizontal jack convenient to operate.

In order to solve the above problems, the present invention adopts the following technical solutions.

Horizontal jack convenient to operation, including base, hydraulic assembly, jib loading boom, bracket and tray, the jib loading boom is flexible adjustable, the front and the back of bracket all are provided with telescopic connecting rod, telescopic connecting rod is located the front and back of jib loading boom respectively, two telescopic connecting rod is connected through the front and the back rotation of pivot and base inner wall respectively, the top demountable installation of tray has the increase subassembly.

As a further scheme of the invention: the jib loading boom includes forearm and postbrachium, the forearm is through pivot and bracket connection, the postbrachium is connected with the base through the pivot, the left side of postbrachium is seted up flutedly, the right-hand member of forearm extends to in the recess, be provided with flexible adjusting part on the postbrachium.

As a further scheme of the invention: flexible adjusting part is including rotating the threaded rod of installing on recess rear side inner wall, the thread groove has been seted up on the right side of forearm, the threaded rod extends to in the thread groove and rather than threaded connection, the threaded rod is close to right-hand member department cover and is equipped with rather than fixed connection's worm wheel, the back meshing of worm wheel has the worm, the bottom of worm is through the interior diapire fixed connection of bearing and recess, the bottom fixedly connected with spiral arm of worm, the top of spiral arm is run through and is extended to the top of postbrachium.

As a further scheme of the invention: the telescopic connecting rod comprises a fixing rod and a sleeve rod, the left end of the fixing rod is connected with the bracket through a rotating shaft, the right end of the fixing rod extends into the sleeve rod, the right end of the sleeve rod is connected with the base through a rotating shaft, guide grooves are formed in the inner bottom wall and the inner bottom wall of the sleeve rod, the fixing rod is close to the top of the right end, and guide keys are fixedly connected with the bottom of the fixing rod and are connected with the two guide grooves in a sliding mode.

As a further scheme of the invention: the height increasing assembly comprises an internal thread sleeve, the internal thread sleeve is in threaded connection with the tray, the top of the internal thread sleeve is in threaded connection with the height increasing rod, the top of the threaded height increasing rod is fixedly connected with an auxiliary supporting disk, and concave-convex anti-slip lines are formed in the top of the auxiliary supporting disk.

As a further scheme of the invention: four corners of the bottom of the base are fixedly provided with trundles, and the trundles are provided with brakes.

As a further scheme of the invention: the inner top wall and the inner bottom wall of the groove are both provided with sliding grooves, two sliding blocks are connected in the sliding grooves in a sliding mode, and the sliding blocks are fixedly connected with the top and the bottom of the front arm respectively.

As a further scheme of the invention: the locking device is characterized in that one side, far away from the crane boom, of the fixing rod is provided with a locking groove, a supporting block is arranged in the locking groove, one side, far away from the locking groove, of the supporting block is fixedly connected with a locking bolt, and the locking bolt penetrates through and extends to the outer side of the loop bar.

As a further scheme of the invention: one side of the abutting block, which is far away from the locking bolt, is fixedly connected with an anti-slip pad.

Compared with the prior art, the invention has the advantages that:

this scheme is through being flexible adjustable and cooperate telescopic connecting rod with the jib loading boom design for the lowest point position of bracket and tray is adjustable, and convenient operation can satisfy the difference be the user demand, improves application scope, and when the jacking height of tray was not enough, the accessible installation increased the subassembly and assisted and increased, in order to satisfy the user demand, application scope is wide.

Drawings

FIG. 1 is a perspective view of the present invention;

FIG. 2 is an enlarged view of the tray of FIG. 1 in accordance with the present invention;

FIG. 3 is a partial front sectional view of a middle lift arm of the present invention;

FIG. 4 is an exploded view of the telescopic connecting rod of the present invention.

The reference numbers in the figures illustrate:

1. a base; 2. a hydraulic assembly; 3. a cargo boom; 31. a forearm; 32. a rear arm; 33. a groove; 34. a telescopic adjustment assembly; 341. a threaded rod; 342. a thread groove; 343. a worm gear; 344. a worm; 345. a swing arm; 35. a chute; 36. a slider; 4. a bracket; 5. a tray; 6. a telescopic connecting rod; 61. fixing the rod; 62. a loop bar; 63. a guide groove; 64. a guide key; 65. a locking groove; 66. a resisting block; 67. locking the bolt; 7. a heightening component; 71. an internally threaded sleeve; 72. a threaded heightening rod; 73. an auxiliary support disk; 74. concave-convex anti-skid lines; 8. and a caster.

Detailed Description

The technical solution in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention; it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all embodiments, and all other embodiments obtained by those skilled in the art without any inventive work are within the scope of the present invention.

Please refer to fig. 1-4, a horizontal jack convenient for operation, including a base 1, a hydraulic assembly 2, a boom 3, a bracket 4 and a tray 5, the boom 3 is telescopic and adjustable, the front and the back of the bracket 4 are provided with telescopic connecting rods 6, the telescopic connecting rods 6 are respectively located in front of and behind the boom 3, two telescopic connecting rods 6 are respectively connected with the front and the back of the inner wall of the base 1 through rotating shafts, a height increasing assembly 7 is detachably installed at the top of the tray 5, the boom 3 is designed to be telescopic and adjustable and matched with the telescopic connecting rods 6 in the scheme, so that the lowest point positions of the bracket 4 and the tray 5 can be adjusted, thereby satisfying different use requirements, improving the application range, and when the jacking height of the tray 5 is not enough, the height increasing assembly 7 can be installed to assist in increasing, so as to satisfy the use requirements.

Specifically, the jib 3 includes forearm 31 and postbrachium 32, and forearm 31 is connected with bracket 4 through the pivot, and postbrachium 32 is connected with base 1 through the pivot, and the left side of postbrachium 32 is seted up flutedly 33, and the right-hand member of forearm 31 extends to in the flutedly 33, is provided with flexible adjusting part 34 on the postbrachium 32.

The telescopic adjusting assembly 34 comprises a threaded rod 341 rotatably mounted on the inner wall of the rear side of the groove 33, a threaded groove 342 is formed in the right side of the front arm 31, the threaded rod 341 extends into the threaded groove 342 and is in threaded connection with the threaded groove 342, a worm wheel 343 fixedly connected with the threaded rod 341 is sleeved at the position close to the right end of the threaded rod 341, a worm 344 is meshed with the back of the worm wheel 343, the bottom end of the worm 344 is fixedly connected with the inner bottom wall of the groove 33 through a bearing, a rotating arm 345 is fixedly connected with the bottom end of the worm 344, and the top of the rotating arm 345 penetrates through and extends to the top of the rear arm 32;

the boom 3 drives the worm 344 to rotate by rotating the spiral arm 345, and the worm 344 can drive the worm wheel 343 engaged with the worm to rotate, so as to drive the threaded rod 341 to rotate, so that the front arm 31 is retracted towards the inside of the rear arm 32 or extended out of the rear arm 32, thereby adjusting the length of the boom 3, and further changing the position of the lowest point of the tray 5, so as to meet different use requirements.

Wherein, the spout 35 has all been seted up to recess 33's interior roof and interior bottom wall, and equal sliding connection has slider 36 in two spout 35, and two sliders 36 respectively with the top and the bottom fixed connection of forearm 31, can assist spacing direction through slider 36 and spout 35.

Specifically, telescopic connecting rod 6 includes dead lever 61 and loop bar 62, the left end of dead lever 61 is connected with bracket 4 through the pivot, the right-hand member of dead lever 61 extends to in the loop bar 62, the right-hand member of loop bar 62 is connected with base 1 through the pivot, guide slot 63 has all been seted up to the interior diapire and the interior diapire of loop bar 62, dead lever 61 is close to the top and the equal fixedly connected with guide key 64 in bottom of right-hand member, two guide keys 64 respectively with two guide slot 63 sliding connection, when jib boom 3 carries out length adjustment, dead lever 61 that telescopic connecting rod 6 can be driven to bracket 4 moves in loop bar 62, in order to guarantee not to influence the length adjustment of jib boom 3.

Wherein, the dead lever 61 is kept away from one side of jib loading boom 3 and has been seted up locking groove 65, is provided with in the locking groove 65 and supports piece 66, supports one side fixedly connected with locking bolt 67 that piece 66 kept away from locking groove 65, and locking bolt 67 runs through and extends to the outside of loop bar 62, supports one side fixedly connected with slipmat that piece 66 kept away from locking bolt 67.

After the lengths of the crane boom 3 and the telescopic connecting rod 6 are determined, the locking bolt 67 is turned and fastened, so that the abutting block 66 and the anti-slip pad abut against the locking groove 65, the telescopic connecting rod 6 is subjected to auxiliary length locking, and the stability of subsequent work is improved.

Specific, it includes internal thread sleeve 71 to increase subassembly 7, internal thread sleeve 71 threaded connection is on tray 5, internal thread sleeve 71's top threaded connection has the screw thread to increase pole 72, the screw thread increases the top fixedly connected with auxiliary supporting disk 73 of pole 72, unsmooth anti-skidding line 74 has been seted up at auxiliary supporting disk 73's top, the degree of depth of internal thread sleeve 71 including pole 72 can realize the adjustment that increases the height of subassembly 7 through control screw thread increases, in order to improve application scope, internal thread sleeve 71 adopts threaded connection's mode with tray 5, can conveniently increase the holistic installation of subassembly 7 and dismantle, auxiliary supporting disk 73 is used for contacting with the work piece when carrying out jacking work, it can increase the frictional force with the work piece to set up unsmooth anti-skidding line 74, avoid the during operation to take place the drunkenness.

In addition, the four corners of the bottom of the base 1 are fixedly provided with trundles 8, so that the device can move integrally, and the trundles 8 are provided with brakes and are convenient to brake the trundles 8.

The working principle is as follows: according to the horizontal jack, the worm 344 can be driven to rotate by rotating the spiral arm 345, the worm 344 can be driven to rotate along with the rotation of the worm 344, the worm wheel 343 meshed with the worm can be driven to rotate, the threaded rod 341 is driven to rotate, the front arm 31 is contracted towards the inside of the rear arm 32 or extended out of the rear arm 32, the length of the crane boom 3 is adjusted, the bracket 4 is driven to move, the adjustment of the positions of the lowest points of the bracket 4 and the tray 5 is realized, and different use requirements are met;

when the bracket 4 moves, the fixing rod 61 of the telescopic connecting rod 6 can be driven to move in the sleeve rod 62 so as to ensure that the length adjustment of the crane boom 3 is not influenced, and after the length of the crane boom 3 is determined, the locking bolt 67 is turned and fastened so that the abutting block 66 and the anti-skid pad abut against the locking groove 65, and the telescopic connecting rod 6 is subjected to auxiliary length locking so as to increase the stability of subsequent work;

when the jacking height of tray 5 was not enough, the mode that adopts threaded connection through internal thread sleeve 71 and tray 5 realizes increasing the quick installation of subassembly 7, then increases the regulation that the pole 72 realized increasing the height at the degree of depth of internal thread sleeve 71 through the control screw thread to improve application scope.

The foregoing is only a preferred embodiment of the present invention; the scope of the invention is not limited thereto. Any person skilled in the art should be able to cover the technical scope of the present invention by equivalent or modified solutions and modifications within the technical scope of the present invention.