Hydraulic control device of road maintenance vehicle

Abstract

The utility model discloses a hydraulic control device of a road maintenance vehicle, and particularly relates to a hydraulic control system which comprises a main pipe body, and the side wall of the main pipe body is fixedly communicated with a first flange connecting end and a second flange connecting end. A universal ball valve rod located between the first flange connecting end and the second flange connecting end is rotationally arranged on the main pipe body. Valve shroud rings are fixedly arranged in the first flange connecting end, the second flange connecting end and the main pipe body, and valve element pieces are rotationally arranged in the valve shroud rings. The transmission mechanism comprises toothed bar plates which are symmetrically distributed relative to the center of the universal ball valve rod and are assembled in a sliding manner; the universal ball valve rod can push the toothed bar plate on any side to slide, so that the valve element piece located at the first flange connecting end / the second flange connecting end is rotationally opened. According to the utility model, the engineering vehicle has the hydraulic supply capability, so that the engineering vehicle can be matched with engineering instruments such as a hydraulic shovel for use.

Description

Technical Field

[0001] The utility model relates to a hydraulic control system, in particular to a hydraulic control device for a road maintenance vehicle. Background Art

[0002] When carrying out road repair projects, equipment such as hydraulic shovels and hydraulic cutters are required. Therefore, the vehicle responsible for transporting workers also needs to carry a hydraulic power station that can be used in conjunction with the above two machines. Referring to the patent with the publication (announcement) number: CN218624873U, and the publication (announcement) date: March 14, 2023, a hydraulic power station applicable to various hydraulic equipment is disclosed. In the prior art including the above patent, it can be seen that the overall volume of this hydraulic power station is relatively large and needs to be carried down from the engineering vehicle during use. And the engineering vehicle only has the function of transportation. If the two are combined, the cumbersome process of carrying the hydraulic power station during the use of hydraulic equipment can be avoided. Summary of the Utility Model

[0003] The purpose of the utility model is to provide a hydraulic control device for a road maintenance vehicle to solve the above problems.

[0004] To achieve the above purpose, the utility model provides the following technical solutions:

[0005] A hydraulic control device for a road maintenance vehicle includes a main pipe body, and a first flange connection end and a second flange connection end are fixedly communicated with the side wall of the main pipe body;

[0006] A universal ball valve rod is rotatably arranged on the main pipe body between the first flange connection end and the second flange connection end;

[0007] A valve hoop ring is fixedly arranged in the first flange connection end, the second flange connection end and the main pipe body, and a valve core part is rotatably arranged in the valve hoop ring;

[0008] It further includes a transmission mechanism, and the transmission mechanism includes rack plates that are symmetrically distributed about the center of the universal ball valve rod and are slidably assembled;

[0009] The universal ball valve rod can push any one of the rack plates to slide, so that the valve core part on the first flange connection end / second flange connection end rotates and opens;

[0010] It further includes a linkage mechanism, which is used to make the valve core part on the first flange connection end or the second flange connection end rotate and open while the valve core part in the main pipe body rotates and closes synchronously.

[0011] Preferably, the valve core part on the main pipe body along the hydraulic transmission direction is located below the second flange connection end.

[0012] Preferably, a retaining spring is fixedly installed on the main pipe body. In the default state of the retaining spring, the rack plate connected thereto is close to the universal ball valve rod.

[0013] Preferably, the transmission mechanism includes a circular gear meshing with the rack plate. A first bevel gear fixedly arranged on the end face of the circular gear meshes with a second bevel gear at the end of a first transmission shaft rotatably arranged on the main pipe body. A third bevel gear fixedly installed at the end of the first transmission shaft meshes with an eighth bevel gear fixedly installed at the end of the rotating shaft of the valve element.

[0014] Preferably, the linkage mechanism includes a second transmission shaft slidably arranged, on which ninth bevel gears are respectively and fixedly installed;

[0015] A third transmission shaft is rotatably arranged in the main pipe body. Among the fourth bevel gears fixedly installed at both ends of the third transmission shaft: one meshes with the first bevel gear, and the other can mesh with the ninth bevel gear;

[0016] A synchronizing rod is fixedly arranged between the second transmission shaft and the rack plate.

[0017] Preferably, a fifth bevel gear symmetrically arranged with one of the ninth bevel gears is fixedly installed at the end of the second transmission shaft;

[0018] A fourth transmission shaft is rotatably arranged in the main pipe body. Among the sixth bevel gears fixedly installed at both ends of the fourth transmission shaft: one meshes with the fifth bevel gear, and the other meshes with the eighth bevel gear fixedly installed at the end of the rotating shaft of the valve element.

[0019] In the above technical solution, a hydraulic control device of a road maintenance vehicle provided by the present utility model has the following beneficial effects: By rotating the universal ball valve rod close to the first flange connection end or the second flange connection end, thereby pushing one side of the rack plate to slide, so as to drive the valve element located in the first flange connection end or the second flange connection end to rotate and open. Under the transmission of the linkage mechanism, the valve element located in the main pipe body rotates and closes synchronously.

[0020] When the universal ball valve rod is kept between the first flange connection end and the second flange connection end, the valve elements located in the first flange connection end and the second flange connection end rotate and close, while the valve element located in the main pipe body rotates and opens synchronously. The engineering vehicle is enabled to have the ability of hydraulic supply, so as to cooperate with the use of engineering instruments such as hydraulic shovels. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] To more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the following will briefly introduce the accompanying drawings required in the embodiments. Obviously, the accompanying drawings in the following description are only some embodiments described in the present utility model. For those of ordinary skill in the art, other accompanying drawings can also be obtained based on these drawings.

[0022] Figure 1 It is a schematic structural diagram of the whole provided by the embodiment of the present utility model;

[0023] Figure 2 It is a schematic cross-sectional structure diagram provided by the embodiment of the present utility model.

[0024] Description of the reference numerals:

[0025] 1. Main pipe body; 11. Resistance spring; 12. Third transmission shaft; 13. Fourth bevel gear; 15. Fourth transmission shaft; 16. Sixth bevel gear; 17. Mountain-shaped groove; 2. First flange connection end; 3. Second flange connection end; 4. Universal ball valve rod; 50. Valve hoop ring; 52. Valve core part; 53. Eighth bevel gear; 6. Transmission mechanism; 61. Rack plate; 62. Round gear; 63. First transmission shaft; 64. Third bevel gear; 65. Second bevel gear; 7. Linkage mechanism; 70. Second transmission shaft; 71. Ninth bevel gear; 72. Synchronous rod; 73. Fifth bevel gear. Detailed implementation manners

[0026] In order to enable those skilled in the art to better understand the technical solutions of the present utility model, the following will further introduce the present utility model in detail in conjunction with the accompanying drawings.

[0027] As Figure 1-2 shown, a hydraulic control device for a road maintenance vehicle includes a main pipe body 1, and a first flange connection end 2 and a second flange connection end 3 are fixedly communicated with the side wall of the main pipe body 1;

[0028] A universal ball valve rod 4 is rotatably arranged on the main pipe body 1 between the first flange connection end 2 and the second flange connection end 3;

[0029] A valve hoop ring 50 is fixedly arranged in the first flange connection end 2, the second flange connection end 3 and the main pipe body 1, and a valve core part 52 is rotatably arranged in the valve hoop ring 50;

[0030] It further includes a transmission mechanism 6, and the transmission mechanism 6 includes rack plates 61 that are symmetrically distributed about the center of the universal ball valve rod 4 and are slidably assembled;

[0031] The universal ball valve rod 4 can push and slide any one of the rack plates 61, so that the valve core part 52 located on the first flange connection end 2 / the second flange connection end 3 rotates and opens;

[0032] It further includes a linkage mechanism 7 which is used to rotate and open the valve core member 52 on the first flange connection end 2 or the second flange connection end 3, and synchronously rotate and close the valve core member 52 located within the main pipe body 1.

[0033] Specifically, one end of the main pipe body 1 in the embodiment is connected to an oil pump, and the other end is connected to the hydraulic lifting system of a road maintenance vehicle. The first flange connection end 2 and the second flange connection end 3 can be connected to engineering instruments such as an external hydraulic shovel as required.

[0034] The hydraulic lifting system in the embodiment belongs to the inherent system of the road maintenance vehicle, so it will not be elaborated in detail.

[0035] It should be noted that the valve core member 52 located on the main pipe body 1 along the hydraulic transmission direction is below the second flange connection end 3.

[0036] Furthermore, in combination with Figure 1 it can be seen that a mountain-shaped groove 17 is provided on the main pipe body 1 in the embodiment, and the universal ball valve rod 4 can stop in any one of the grooves within the mountain-shaped groove 17, so as to realize the switching among three states of the universal ball valve rod 4 being close to the first flange connection end 2, the second flange connection end 3, and being held between the first flange connection end 2 and the second flange connection end 3.

[0037] In the above technology, by rotating the universal ball valve rod 4 close to the first flange connection end 2 or the second flange connection end 3, the rack plate 61 on either side is pushed to slide, so as to drive the valve core member 52 within the first flange connection end 2 or the second flange connection end 3 to rotate and open. Under the transmission of the linkage mechanism 7, the valve core member 52 located within the main pipe body 1 is synchronously rotated and closed.

[0038] When the universal ball valve rod 4 is held between the first flange connection end 2 and the second flange connection end 3, the valve core members 52 within the first flange connection end 2 and the second flange connection end 3 rotate and close, while the valve core member 52 within the main pipe body 1 synchronously rotates and opens. This enables the engineering vehicle to have the ability of hydraulic supply, so as to cooperate with the use of engineering instruments such as a hydraulic shovel.

[0039] As a further embodiment provided by the present utility model, a damping spring 11 is fixedly installed on the main pipe body 1. In the default state of the damping spring 11, the rack plate 61 connected thereto is close to the universal ball valve rod 4.

[0040] Specifically, in combination with Figure 2 it can be seen that when the universal ball valve rod 4 is held between the first flange connection end 2 and the second flange connection end 3, the rack plate 61 loses the pushing of the universal ball valve rod 4, and under the action of the damping spring 11, it returns to the initial state.

[0041] As yet another embodiment further provided by the present utility model, the transmission mechanism 6 includes a circular gear 62 meshing with a rack plate 61. A first bevel gear fixedly arranged on the end face of the circular gear 62 meshes with a second bevel gear 65 at the end of a first transmission shaft 63 rotatably arranged on the main pipe body 1. A third bevel gear 64 fixedly installed at the end of the first transmission shaft 63 meshes with an eighth bevel gear 53 fixedly installed at the end of the rotating shaft of the valve element 52.

[0042] Specifically, the transmission mechanism 6 in the embodiment is arranged in a mirror image. When the universal ball valve rod 4 is rotated close to the first flange connection end 2 or the second flange connection end 3, the rack plate 61 is driven to slide, thereby driving the circular gear 62 to rotate. The first bevel gear transmission causes the first transmission shaft 63 to rotate, thereby driving the valve element 52 to rotate and open.

[0043] As yet another embodiment further provided by the present utility model, the linkage mechanism 7 includes a second transmission shaft 70 slidably arranged and fixedly installed with ninth bevel gears 71 thereon respectively;

[0044] A third transmission shaft 12 is rotatably arranged in the main pipe body 1. Among the fourth bevel gears 13 fixedly installed at both ends of the third transmission shaft 12: one meshes with the first bevel gear, and the other can mesh with the ninth bevel gear 71;

[0045] A synchronizing rod 72 is fixedly arranged between the second transmission shaft 70 and the rack plate 61.

[0046] Specifically, in the embodiment, when the universal ball valve rod 4 is rotated close to the first flange connection end 2 or the second flange connection end 3, the rack plate 61 is driven to slide. Synchronously, the synchronizing rod 72 follows the rack plate 61 to slide, thereby causing the second transmission shaft 70 to move, so that the ninth bevel gear 71 meshes with any one of the fourth bevel gears 13 on either side.

[0047] Furthermore, a fifth bevel gear 73 symmetrically arranged with one of the ninth bevel gears 71 is fixedly installed at the end of the second transmission shaft 70;

[0048] A fourth transmission shaft 15 is rotatably arranged in the main pipe body 1. Among the sixth bevel gears 16 fixedly installed at both ends of the fourth transmission shaft 15: one meshes with the fifth bevel gear 73, and the other meshes with the eighth bevel gear 53 fixedly installed at the end of the rotating shaft of the valve element 52.

[0049] Specifically, the second transmission shaft 70 moves, so that the ninth bevel gear 71 meshes with any one of the fourth bevel gears 13 on either side. At this time, the second transmission shaft 70 rotates synchronously with the first transmission shaft 63. At this time, the second transmission shaft 70 drives the fifth bevel gear 73 to drive the fourth transmission shaft 15 to rotate. At this time, the fourth transmission shaft 15 drives the valve element 52 to rotate and close.

[0050] Only some exemplary embodiments of the present utility model are described by way of illustration. Undoubtedly, for those of ordinary skill in the art, the described embodiments can be modified in various different ways without departing from the spirit and scope of the present utility model. Therefore, the above drawings and description are illustrative in nature and should not be construed as limiting the scope of protection of the claims of the present utility model.

Claims

1. A hydraulic control device for a road maintenance vehicle, characterized in that: It comprises a main pipe body (1), the side wall of which is fixedly connected with a first flange connection end (2) and a second flange connection end (3); The main pipe body (1) is rotatably provided with a universal ball valve stem (4) located between the first flange connection end (2) and the second flange connection end (3); A valve hoop ring (50) is fixedly arranged inside the first flange connection end (2), the second flange connection end (3) and the main pipe body (1), and a valve core member (52) is rotatably arranged inside the valve hoop ring (50); It also includes a transmission mechanism (6), wherein the transmission mechanism (6) includes a gear rod plate (61) symmetrically distributed about the center of the Vientiane ball valve stem (4) and slidably assembled; The Vientiane ball valve stem (4) can push the gear plate (61) on either side to slide, so that the valve core member (52) located on the first flange connection end (2) / the second flange connection end (3) can rotate and open; It also includes a linkage mechanism (7) for enabling the valve core member (52) on the first flange connection end (2) or the second flange connection end (3) to rotate open and the valve core member (52) in the main pipe body (1) to rotate closed synchronously.

2. A hydraulic control device for a road maintenance vehicle according to claim 1, characterized in that: The valve core member (52) located on the main pipe body (1) along the hydraulic transmission direction is located below the second flange connection end (3).

3. The hydraulic control device for a road maintenance vehicle according to claim 1, characterized in that: A blocking spring (11) is fixedly mounted on the main pipe body (1). In a default state, the blocking spring (11) causes the gear rod plate (61) connected thereto to be close to the universal ball valve stem (4).

4. The hydraulic control device for a road maintenance vehicle according to claim 1, characterized in that: The transmission mechanism (6) comprises a circular gear (62) meshing with the gear plate (61); a first bevel gear fixedly arranged on the end surface of the circular gear (62) meshing with a second bevel gear (65) at the end of a first transmission shaft (63) rotatably arranged on the main pipe body (1); and a third bevel gear (64) meshing with an eighth bevel gear (53) fixedly arranged at the end of a rotating shaft of a valve core member (52) is fixedly mounted at the end of the first transmission shaft (63).

5. The hydraulic control device for a road maintenance vehicle according to claim 1, characterized in that: The linkage mechanism (7) comprises a second transmission shaft (70) which is slidably arranged and on which a ninth bevel gear (71) is fixedly mounted; A third transmission shaft (12) is rotatably arranged in the main pipe body (1), and of the fourth bevel gears (13) fixedly mounted at both ends of the third transmission shaft (12), one is meshed with the first bevel gear, and the other is meshed with the ninth bevel gear (71); A synchronization rod (72) is fixedly arranged between the second transmission shaft (70) and the gear plate (61).

6. The hydraulic control device for a road maintenance vehicle according to claim 5, characterized in that: A fifth bevel gear (73) symmetrically arranged with a ninth bevel gear (71) is fixedly mounted on the end of the second transmission shaft (70); A fourth transmission shaft (15) is rotatably arranged in the main pipe body (1), and six bevel gears (16) are fixedly mounted at both ends of the fourth transmission shaft (15): one meshes with the fifth bevel gear (73), and the other meshes with the eighth bevel gear (53) fixedly mounted at the end of the rotating shaft of the valve core member (52).

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