CN221027388U

CN221027388U - Automatic synchronous bottom lifting jack

Info

Publication number: CN221027388U
Application number: CN202323160370.5U
Authority: CN
Inventors: 张金龙
Original assignee: Individual
Current assignee: Individual
Priority date: 2023-11-23
Filing date: 2023-11-23
Publication date: 2024-05-28
Anticipated expiration: 2033-11-23

Abstract

The utility model discloses an automatic synchronous bottom lifting jack, which comprises a front upright post, a rear upright post, a bottom lifting oil cylinder, a front upright post operating valve, a rear upright post operating valve and a one-way lock, wherein the front upright post comprises a first front upright post and a second front upright post, the rear upright post comprises a first rear upright post and a second rear upright post, a front upright post pipe collecting pipe and a front upright post pipe extending are arranged between the first front upright post and the second front upright post, and a rear upright post pipe collecting pipe and a rear upright post pipe extending are arranged between the first rear upright post and the second rear upright post; the utility model ensures that the bottom lifting jack automatically and synchronously works when the upright post is lifted without manual intervention, reduces the labor intensity of workers, avoids equipment damage caused by misoperation, and can lead the bracket to rapidly move forward due to the reduction of links of manually operating the bottom lifting jack, so that the perfection rate of the bottom lifting jack is kept above 80 percent, thereby reducing the maintenance cost of the equipment and increasing the production quantity.

Description

Automatic synchronous bottom lifting jack

Technical Field

The utility model relates to the technical field of lifting jacks, in particular to an automatic synchronous lifting jack.

Background

The existing lifting jack is designed in a semi-automatic mode, manual operation is needed, and due to the fact that a first-line worker adjusts frequently, the existing lifting jack is unfamiliar with operation rules and operation sequences, and the damage rate of the lifting jack is up to more than 80% due to misoperation; the damage of the bottom lifting jack causes that the column feet cannot be lifted normally when the frame is moved, so that the load of the push-pull jack is multiplied, the frame cannot move forward normally, the coal wall caving top plate is easy to collapse, the safety of equipment and personnel is endangered, and the production capacity is influenced.

Therefore, an automatic synchronous bottom lifting jack is a problem to be solved urgently.

Disclosure of utility model

The utility model aims to solve the technical problems that the damage rate of the existing bottom lifting jack is high, the bracket cannot normally move forward, the coal wall caving top plate is easy to collapse, the safety of equipment and personnel is endangered, and the production capacity is influenced.

In order to solve the technical problems, the technical scheme provided by the utility model is as follows: the automatic synchronous bottom lifting jack comprises a front upright post, a rear upright post, a bottom lifting oil cylinder, a front upright post operation valve, a rear upright post operation valve and a one-way lock, wherein the front upright post comprises a first front upright post and a second front upright post, the rear upright post comprises a first rear upright post and a second rear upright post, a front upright post pipe collecting and a front upright post pipe extending are arranged between the first front upright post and the second front upright post, and a rear upright post pipe collecting and a rear upright post pipe extending are arranged between the first rear upright post and the second rear upright post;

The front upright post collecting pipe is provided with a first interface and a third interface, the front upright post extending pipe is provided with a second interface and a fourth interface, the front upright post extending pipe is connected with the unidirectional lock through a tee joint by a high-pressure pipe, the unidirectional lock is provided with a fifth interface, a sixth interface, a seventh interface and an eighth interface, the bottom lifting oil cylinder is provided with an extending port and a closing port, the rear upright post extending pipe is provided with a ninth interface and a tenth interface, and the rear upright post collecting pipe is provided with an eleventh interface.

Further, the first interface is connected with the descending interface of the front upright column operation valve, the second interface is connected with the ascending interface of the front upright column operation valve, the third interface is connected with the fifth interface of the unidirectional lock, the fourth interface is connected with the sixth interface of the unidirectional lock, the seventh interface of the unidirectional lock is connected with the closing port of the bottom lifting oil cylinder, the eighth interface of the unidirectional lock is connected with the extending port of the bottom lifting oil cylinder, the ninth interface is connected with the tee joint, the tenth interface is connected with the ascending port of the rear upright column operation valve, and the eleventh interface is connected with the descending port of the rear upright column operation valve.

Further, the connections between the interfaces are all communicated by three-way through high-pressure pipes.

Further, the tee joint has a non-return function.

Further, a stop valve is arranged between the third interface and the one-way lock.

Compared with the prior art, the utility model has the advantages that: according to the utility model, the front upright post, the bottom lifting oil cylinder and the rear upright post are matched, so that the bottom lifting jack automatically and synchronously works when the upright post is lifted, manual intervention is not needed, the labor intensity of workers is reduced, equipment damage caused by misoperation is avoided, the link of manually operating the bottom lifting jack is reduced, the bracket can be quickly moved forward, the integrity of the bottom lifting jack is maintained to be more than 80%, the maintenance cost of the equipment is reduced, and the production capacity is increased; the utility model has reasonable design and is worth popularizing.

Drawings

Fig. 1 is a schematic structural view of an automatic synchronous lifting jack according to the present utility model.

As shown in the figure: 1. front upright post, 2, rear upright post, 3, bottom lifting oil cylinder, 4, front upright post operation valve, 5, rear upright post operation valve, 6, one-way lock, 7, first front upright post, 8, second front upright post, 9, first rear upright post, 10, second rear upright post, 11, front upright post pipe, 12, front upright post pipe, 13, rear upright post pipe, 14, rear upright post pipe, 15, first interface, 16, third interface, 17, second interface, 18, fourth interface, 19, tee joint, 20, fifth interface, 21, sixth interface, 22, seventh interface, 23, eighth interface, 24, pipe, 25, closing up, 26, ninth interface, 27, tenth interface, 28, eleventh interface, 29, stop valve.

Detailed Description

The utility model relates to an automatic synchronous lifting jack, which is further described in detail below with reference to the accompanying drawings.

The present utility model will be described in detail with reference to fig. 1.

An automatic synchronous bottom lifting jack comprises a front upright 1, a rear upright 2, a bottom lifting cylinder 3, a front upright operating valve 4, a rear upright operating valve 5 and a one-way lock 6, wherein the front upright 1 comprises a first front upright 7 and a second front upright 8, the rear upright 2 comprises a first rear upright 9 and a second rear upright 10, a front upright pipe 11 and a front upright pipe 12 are arranged between the first front upright 7 and the second front upright 8, and a rear upright pipe 13 and a rear upright pipe 14 are arranged between the first rear upright 9 and the second rear upright 10;

The front column pipe 11 is provided with a first interface 15 and a third interface 16, the front column pipe 12 is provided with a second interface 17 and a fourth interface 18, the front column pipe 12 and the unidirectional lock 6 are connected by a tee joint through a high-pressure pipe and a tee joint through a tee joint 18, the unidirectional lock 6 is provided with a fifth interface 20, a sixth interface 21, a seventh interface 22 and an eighth interface 23, the bottom lifting cylinder 3 is provided with a stretching opening 24 and a closing opening 25, the rear column pipe 14 is provided with a ninth interface 26 and a tenth interface 27, and the rear column pipe 13 is provided with an eleventh interface 28.

The first interface 15 is connected with a descending interface of the front upright column operation valve 4, the second interface 17 is connected with a lifting interface of the front upright column operation valve 4, the third interface 16 is connected with a fifth interface 20 on the unidirectional lock 6, the fourth interface 18 is connected with a sixth interface 21 on the unidirectional lock 6, a seventh interface 22 on the unidirectional lock 6 is connected with a closing-in 25 on the bottom lifting cylinder 3, an eighth interface 23 on the unidirectional lock 6 is connected with a stretching opening 24 on the bottom lifting cylinder 3, a ninth interface 26 is connected with a tee joint 19, a tenth interface 27 is connected with a lifting opening of the rear upright column operation valve 5, and an eleventh interface 28 is connected with a descending opening of the rear upright column operation valve 5.

The connection between the interfaces is communicated by three-way through a high-pressure pipe.

The 19 tee has a non-return function.

A stop valve 29 is arranged between the third interface 16 and the unidirectional lock 6.

The utility model discloses an automatic synchronous bottom lifting jack, which comprises the following specific implementation processes: when the front upright post is lowered, hydraulic pressure passes through the first interface, the third interface, the fifth interface, the eighth interface and the extending port on the bottom lifting oil cylinder by the front upright post operation valve, so that the bottom lifting oil cylinder extends out and is locked at a required height by the unidirectional lock;

when the front upright post is lifted, hydraulic pressure is collected by the front upright post operating valve through the second interface, the fourth interface, the sixth interface, the seventh interface and the closing-in of the bottom lifting oil cylinder;

When the rear upright post is lifted, hydraulic pressure is collected by the rear upright post operating valve through a tenth interface, a ninth interface, a tee joint, a seventh interface and a closing-up of the bottom lifting oil cylinder;

When the rear upright post is lowered, hydraulic pressure cannot enter a working pipeline of the bottom lifting oil cylinder, and the bottom lifting oil cylinder does not work; a stop valve 29 is additionally arranged at the third interface 16 and the one-way lock 6, and when the bottom lifting oil cylinder is not required to work, the bottom lifting oil cylinder is closed under the condition that the bottom lifting oil cylinder is completely retracted, so that the bottom lifting oil cylinder does not participate in any work.

According to the utility model, the matched structure of the front upright post 1, the bottom lifting oil cylinder 2 and the rear upright post 3 is adopted, so that the bottom lifting jack automatically and synchronously works when the upright post is lifted, manual intervention is not needed, the labor intensity of workers is reduced, equipment damage caused by misoperation is avoided, the bracket can be quickly moved forward due to the reduction of links of manually operating the bottom lifting jack, the integrity of the bottom lifting jack is kept above 80%, the maintenance cost of the equipment is reduced, and the production capacity is increased; the utility model has reasonable design and is worth popularizing.

The utility model and its embodiments have been described above with no limitation, and the actual construction is not limited to the embodiments of the utility model as shown in the drawings. In summary, if one of ordinary skill in the art is informed by this disclosure, a structural manner and an embodiment similar to the technical solution should not be creatively devised without departing from the gist of the present utility model.

Claims

1. An automatic synchronous lifting jack, which is characterized in that: the automatic synchronous bottom lifting jack comprises a front upright (1), a rear upright (2), a bottom lifting oil cylinder (3), a front upright operating valve (4), a rear upright operating valve (5) and a one-way lock (6), wherein the front upright (1) comprises a first front upright (7) and a second front upright (8), the rear upright (2) comprises a first rear upright (9) and a second rear upright (10), a front upright receiving pipe (11) and a front upright extending pipe (12) are arranged between the first front upright (7) and the second front upright (8), and a rear upright receiving pipe (13) and a rear upright extending pipe (14) are arranged between the first rear upright (9) and the second rear upright (10);

Be equipped with first interface (15) and third interface (16) on front column receipts pipe (11), be equipped with second interface (17) and fourth interface (18) on front column extension pipe (12), be connected through tee bend (19) between front column extension pipe (12) and the unidirectional lock (6), be equipped with fifth interface (20), sixth interface (21), seventh interface (22) and eighth interface (23) on unidirectional lock (6), be equipped with on lifting end hydro-cylinder (3) and stretch mouthful (24) and close up (25), be equipped with ninth interface (26) and tenth interface (27) on rear column extension pipe (14), be equipped with eleventh interface (28) on rear column receipts pipe (13).

2. An automatically synchronized lifting jack as claimed in claim 1, wherein: the first interface (15) is connected with a descending interface of the front upright column operation valve (4), the second interface (17) is connected with a lifting interface of the front upright column operation valve (4), the third interface (16) is connected with a fifth interface (20) on the unidirectional lock (6), the fourth interface (18) is connected with a sixth interface (21) on the unidirectional lock (6), a seventh interface (22) on the unidirectional lock (6) is connected with a closing-in (25) on the bottom lifting oil cylinder (3), an eighth interface (23) on the unidirectional lock (6) is connected with a stretching opening (24) on the bottom lifting oil cylinder (3), a ninth interface (26) is connected with a tee joint (19), a tenth interface (27) is connected with a lifting opening of the rear upright column operation valve (5), and an eleventh interface (28) is connected with a descending opening of the rear upright column operation valve (5).

3. An automatically synchronized lifting jack as claimed in claim 2, wherein: the connection between the interfaces is communicated through a high-pressure pipe.

4. An automatically synchronized lifting jack as claimed in claim 2, wherein: the tee joint (19) has a non-return function.

5. An automatically synchronized lifting jack as claimed in claim 2, wherein: a stop valve (29) is arranged between the third interface (16) and the unidirectional lock (6).