Auxiliary reinforced stable supporting device for oil cylinder

Abstract

The utility model discloses an auxiliary reinforced stable supporting device for an oil cylinder, relates to the field of supporting devices for vehicles, and aims to solve the problems that locking movable parts are damaged and the normal operation of the device is influenced due to the fact that a large amount of load is borne for a long time, and the key point of the technical scheme is that a telescopic hydraulic cylinder is nested at the bottom end of a positioning hydraulic cylinder in a sliding manner; the tail end of the telescopic hydraulic cylinder abuts against the top wall of the contact base, the top of the positioning hydraulic cylinder communicates with a liquid storage tank containing sufficient oil, and a communicating hole of the telescopic hydraulic cylinder and the liquid storage tank is provided with an opening and closing device in a matched mode, so that a large amount of loads are prevented from being concentrated at the hinged position of the driving screw and the contact base, and damage to movable parts is effectively avoided. And the effect of long-term use of the equipment is ensured.

Description

Technical Field

[0001] The utility model relates to the technical field of vehicle support devices, in particular to an oil cylinder assisted reinforced stable support device. Background Art

[0002] Vehicle connection mainly refers to the connection between the trailer and the tractor head when the tractor is towing a trailer. The supporting device is an indispensable equipment when the trailer and the tractor head are connected. The trailer is lifted up by the supporting device, and then the position of the tractor head is adjusted. After alignment, the supporting device is controlled to release the force so that the trailer falls on the tractor head. Similarly, the supporting device is also an indispensable equipment during the uncoupling process.

[0003] Existing supporting devices generally adopt a telescopic support rod with an angle-adjustable contact base connected to the bottom end. The support rod includes a positioning part, a telescopic part and a screw. The screw and the positioning part are rotatably fixedly connected to the telescopic part through a threaded connection, and the telescopic part is driven to slide and retract by the screw.

[0004] The above-mentioned existing technical solutions have the following defects: the vehicle load is transmitted to the ground through the positioning part, screw, telescopic part, contact base in sequence. The telescopic part and the contact base are usually movable connection parts with low strength. If they are subjected to a large amount of load for a long time, the locking movable parts will be damaged, affecting the normal operation of the device. Utility Model Content

[0005] The purpose of the utility model is to provide an oil cylinder auxiliary reinforced stable supporting device.

[0006] To achieve the above objectives, the present invention provides the following technical solutions:

[0007] The cam is fixedly mounted on one end of the drive shaft and is provided with a first bevel gear engaged with the first gear and the second bevel gear engaged with the first gear.

[0008] By adopting the above technical solution, when the hexagonal nut is tightened with a tool such as a socket wrench, the rotating rod can be tightened, and the drive screw is driven to rotate through the gear meshing. The telescopic part threadedly connected to the drive bolt can be extended and retracted according to the rotation direction. When the contact base contacts the ground, it can effectively support the vehicle. Otherwise, it can be retracted and stored for easy driving. The opening and closing device can effectively control the opening and closing of the connecting hole. When the connecting hole is open, oil can flow freely in the positioning cylinder, the telescopic cylinder and the fluid storage tank. When the support rod is extended, the telescopic cylinder descends under the action of gravity. When the support rod is retracted, the telescopic cylinder is driven to retract synchronously. When the support cylinder reaches the specified position, the connecting hole is closed to seal the positioning cylinder and the telescopic cylinder. The incompressible oil can keep the positioning cylinder and the telescopic cylinder in a good positioning state, effectively transferring the vehicle load from the positioning part to the contact base, avoiding a large amount of load concentrated at the hinge of the drive screw and the contact base, effectively avoiding damage to the moving parts, and ensuring the long-term use of the equipment. When retracting, the connecting hole is opened to retract the support rod and drive the telescopic cylinder to retract, and the vehicle can be quickly retracted.

[0009] Furthermore, the opening and closing device includes a valve stem that penetrates into the liquid storage tank, and a valve plug is fixedly installed on one end of the valve stem that penetrates into the liquid storage tank. The communicating hole between the telescopic liquid cylinder and the liquid storage tank is covered with a valve cylinder. A liquid hole is penetrated through the outer wall of one end of the valve cylinder close to the telescopic liquid cylinder. The valve plug is threadedly matched with the valve cylinder, and the valve plug is set to block the liquid hole. The end of the valve stem that passes through the liquid storage tank is fixedly sleeved with a twisting handle.

[0010] By adopting the above technical solution, turning the handle makes it easier for the operator to exert force to control the rotation direction of the valve stem. When the valve stem rotates, the valve plug can move up and down in the threaded valve cylinder. When the valve plug moves to the bottom of the valve cylinder, it will block the connecting hole and the liquid hole, so that the telescopic liquid cylinder is positioned. When the valve plug is away from the bottom of the valve cylinder, the connecting hole is opened, the oil can flow in and out freely, and the telescopic liquid cylinder can be freely extended and retracted.

[0011] Furthermore, a locking ball is fixedly installed on one side of the telescopic hydraulic cylinder close to the contact base, and a ball groove for matching the locking ball is opened on the top wall of the contact base, and the ball groove is set through the outer walls on both sides of the contact base.

[0012] By adopting the above technical solution, the locking ball cooperates with the locking slot, which can, on the one hand, make the telescopic cylinder and the telescopic part more tightly combined, and on the other hand, make the two of them able to extend and retract synchronously to solve the problem of slow extension and retraction rate relying on gravity. In addition, the locking ball can slide freely along the ball slot, and when the contact base rotates, the two can adaptively adjust their positions to always maintain a good connection. The through ball slot design also makes it easy to remove debris in the slot and is not easy to get clogged.

[0013] Furthermore, an air hole is opened inside the top communication of the liquid storage tank, a one-way valve is provided inside the liquid storage tank to cover the air hole, and the air hole is matched with a hole plug.

[0014] By adopting the above technical solution, the design of the air hole can balance the air pressure inside and outside the liquid storage tank to facilitate the free flow of oil. The one-way valve allows the gas in the liquid storage tank to pass through, and at the same time, it can close the air hole in time when the oil impacts the air hole and leaks, thereby avoiding a large amount of oil loss. The setting of the hole plug further avoids the loss of oil and the intrusion of external impurities. The hole plug can be pulled out when in use. When not in use or for positioning support, the hole plug can be inserted to ensure the stability of the oil.

[0015] In summary, the beneficial technical effects of the present invention are:

[0016] 1. The positioning cylinder, telescopic cylinder, liquid storage tank and opening and closing device are used to effectively transfer the vehicle load from the positioning part to the contact base, avoiding the concentration of a large amount of load on the hinge between the drive screw and the contact base, effectively avoiding damage to the moving parts and ensuring the long-term use of the equipment;

[0017] 2. The valve stem, valve plug, valve cylinder, liquid hole and twist handle are used to freely control the opening and closing of the connecting hole according to actual needs;

[0018] 3. The snap-fit ​​ball is used in conjunction with the slot to solve the problem of slow expansion and contraction speed due to gravity, so that when the contact base rotates, the two can adaptively adjust their positions and always maintain a good connection. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] The accompanying drawings are used to provide a further understanding of the present invention and constitute part of the specification, but do not constitute a limitation of the present invention. In the accompanying drawings:

[0020] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0021] Figure 2 It is a schematic cross-sectional view of the overall structure of the utility model;

[0022] Figure 3 yes Figure 2 Enlarged schematic diagram of the structure of part A in the middle.

[0023] In the figure, 1. support rod; 11. positioning part; 12. telescopic part; 2. contact base; 3. drive screw; 31. first bevel gear; 4. rotating rod; 41. second bevel gear; 42. hexagonal nut; 5. positioning liquid cylinder; 6. telescopic liquid cylinder; 7. liquid storage tank; 8. opening and closing device; 81. valve stem; 82. valve plug; 83. valve cylinder; 84. liquid hole; 85. twist handle; 9. engaging ball; 91. ball groove; 10. air hole; 101. one-way valve; 102. hole plug. DETAILED DESCRIPTION

[0024] The present invention will be described in further detail below with reference to the accompanying drawings.

[0025] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0026] See also Figure 1-3 , this utility model provides a technical solution:

[0027] The support rod 1 includes a positioning portion 11 and a telescopic portion 12. The telescopic portion 12 is nested in the positioning portion 11 and is slidably arranged. The end of the telescopic portion 12 is hinged with a contact base 2. The center of the positioning portion 11 is provided with a driving screw 3. The driving screw 3 is threadedly connected to the telescopic portion 12. A rotating rod 4 is provided through the outer wall of the positioning portion 11. One end of the driving screw 3 is fixedly sleeved with a first bevel gear 31. One end of the rotating rod 4 penetrates the positioning portion 11 and is sleeved with a second bevel gear 41 that meshes with the first bevel gear 31. The outer wall of the part 11 is fixedly installed with a positioning liquid cylinder 5, and the bottom end of the positioning liquid cylinder 5 is slidably nested with a telescopic liquid cylinder 6. The end of the telescopic liquid cylinder 6 is in contact with the top wall of the base 2. The top of the positioning liquid cylinder 5 is connected to a liquid storage tank 7 filled with sufficient oil. The communicating hole between the telescopic liquid cylinder 6 and the liquid storage tank 7 is equipped with an opening and closing device 8. The end of the rotating rod 4 passing through the outer wall of the positioning part 11 is fixed with a hexagonal nut 42. When the hexagonal nut 42 is screwed with a tool such as a socket wrench, the rotating rod 4 can be screwed, and the gear When the support rod 1 is extended, the telescopic cylinder 6 is moved downwards, and the support rod 1 is retracted to drive the support rod 6 to retract. When the support rod 1 is retracted, the telescopic cylinder 6 is retracted and the support rod 1 is retracted. When the support rod 1 is retracted, the telescopic cylinder 6 is retracted and the support rod 1 is retracted. When the support rod 1 is retracted, the telescopic cylinder 6 is retracted and the support rod 1 is retracted. When the support rod 1 is retracted, the telescopic cylinder 6 is retracted. When the support rod 1 is retracted, the telescopic cylinder 6 is retracted. When the support rod 1 is retracted, the telescopic cylinder 6 is retracted. When the support rod 1 is retracted, the telescopic cylinder 6 is retracted.

[0028] The opening and closing device 8 includes a valve stem 81 that penetrates the liquid storage tank 7. One end of the valve stem 81 that penetrates the liquid storage tank 7 is fixedly installed with a valve plug 82. The communicating hole between the telescopic liquid cylinder 6 and the liquid storage tank 7 is covered with a valve cylinder 83. The outer wall of the valve cylinder 83 near the end of the telescopic liquid cylinder 6 is penetrated by a liquid hole 84. The valve plug 82 is threadedly matched with the valve cylinder 83, and the valve plug 82 blocks the liquid hole 84. The end of the valve stem 81 that passes through the liquid storage tank 7 is fixedly sleeved with a twisting handle 85. Twisting the handle 85 makes it convenient for the operator to exert force to control the rotation direction of the valve stem 81. When the valve stem 81 rotates, the valve plug 82 is convenient to move up and down in the threaded valve cylinder 83. When the valve plug 82 moves to the bottom of the valve cylinder 83, it will block the communicating hole and the liquid hole 84, so that the telescopic liquid cylinder 6 is positioned. When the valve plug 82 is away from the bottom of the valve cylinder 83, the communicating hole is open, the oil can enter and exit freely, and the telescopic liquid cylinder 6 can be freely extended and retracted.

[0029] A locking ball 9 is fixedly installed on one side of the telescopic hydraulic cylinder 6 close to the contact base 2, and a ball groove 91 is provided on the top wall of the contact base 2 to match the locking ball 9. The ball groove 91 is set through the outer walls of both sides of the contact base 2. The locking ball 9 matches the locking groove. On the one hand, it can make the telescopic hydraulic cylinder 6 and the telescopic part 12 more tightly combined, and on the other hand, it allows the two to be telescoped synchronously to solve the problem of slow telescopic speed relying on gravity. In addition, the locking ball 9 can slide freely along the ball groove 91. When the contact base 2 rotates, the two can adaptively adjust their positions to always maintain a good connection. The through ball groove 91 design also facilitates the removal of debris in the groove and is not easy to get clogged.

[0030] An air hole 10 is opened inside the top-level communication of the liquid storage tank 7, and a one-way valve 101 is provided inside the liquid storage tank 7 to cover the air hole 10. The air hole 10 is matched with a hole plug 102. The design of the air hole 10 can balance the air pressure inside and outside the liquid storage tank 7 to facilitate the free flow of oil. The one-way valve 101 allows the gas in the liquid storage tank 7 to pass through. At the same time, the air hole 10 can be closed in time when the oil impacts the air hole 10 and leaks, thereby avoiding a large amount of oil loss. The setting of the hole plug 102 further avoids the loss of oil and the intrusion of external impurities. The hole plug 102 is pulled out when in use. When not in use or for positioning support, the hole plug 102 can be inserted to ensure the stability of the oil.

[0031] It should be noted that, in this document, relational terms such as first and second, etc., are used only to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the terms "comprises," "comprising," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that includes a list of elements includes not only those elements but also other elements not explicitly listed, or elements inherent to such process, method, article, or apparatus.

[0032] Finally, it should be noted that the above description is merely a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art will be able to modify the technical solutions described in the aforementioned embodiments or replace some of the technical features therein with equivalents. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present invention shall be included within the scope of protection of the present invention.

Claims

1. A hydraulic cylinder-assisted reinforced stable support device, comprising a support rod (1), wherein the support rod (1) comprises a positioning portion (11) and a telescopic portion (12), wherein the telescopic portion (12) is nested in the positioning portion (11) and is slidably arranged, and the end thereof is hingedly connected to a contact base (2), wherein a driving screw (3) is rotatably arranged at the center of the positioning portion (11), wherein the driving screw (3) is threadedly connected to the telescopic portion (12), wherein a rotating rod (4) is passed through the outer wall of the positioning portion (11), wherein one end of the driving screw (3) is fixedly sleeved with a first bevel gear (31), and one end of the rotating rod (4) which penetrates the positioning portion (11) is sleeved with a second bevel gear (41) which meshes with the first bevel gear (31), wherein the second bevel gear (41) is meshed with the first bevel gear (31), and wherein the second bevel gear (41) is meshed with the first bevel gear (31), and wherein the second bevel gear (41) is meshed with the first bevel gear (31), and wherein the second bevel gear (41) is meshed with the first bevel gear (31), and wherein the first bevel gear (3 ... Positioning liquid cylinders (5) are fixedly installed on both sides of the outer wall of the positioning portion (11); a telescopic liquid cylinder (6) is slidably nested at the bottom end of the positioning liquid cylinder (5); the end of the telescopic liquid cylinder (6) is arranged to abut against the top wall of the base (2); a liquid storage tank (7) filled with sufficient oil is connected to the top of the positioning liquid cylinder (5); and an opening and closing device (8) is matched with the communication hole between the telescopic liquid cylinder (6) and the liquid storage tank (7).

2. The oil cylinder-assisted reinforced stabilizing support device according to claim 1, characterized in that: One end of the rotating rod (4) passing through the outer wall of the positioning portion (11) is fixedly sleeved with a hexagonal nut (42).

3. The oil cylinder-assisted reinforced stabilizing support device according to claim 2, characterized in that: The opening and closing device (8) comprises a valve stem (81) which penetrates into the liquid storage tank (7); a valve plug (82) is fixedly mounted on one end of the valve stem (81) which penetrates into the liquid storage tank (7); a valve cylinder (83) is provided to cover the communication hole between the telescopic liquid cylinder (6) and the liquid storage tank (7); a liquid hole (84) is provided through the outer wall of one end of the valve cylinder (83) close to the telescopic liquid cylinder (6); the valve plug (82) is threadedly matched with the valve cylinder (83); the valve plug (82) is provided to block the liquid hole (84); and a screwing handle (85) is fixedly provided on one end of the valve stem (81) which penetrates out of the liquid storage tank (7).

4. The oil cylinder-assisted reinforced stabilizing support device according to claim 3, characterized in that: A snap-fit ​​ball (9) is fixedly mounted on one side of the telescopic cylinder (6) close to the contact base (2); a ball groove (91) for matching the snap-fit ​​ball (9) is provided on the top wall of the contact base (2); and the ball groove (91) is provided through the outer walls of both sides of the contact base (2).

5. The oil cylinder-assisted reinforced stabilizing support device according to claim 4, characterized in that: The top level of the liquid storage tank (7) is connected to an interior thereof with an air hole (10), the interior of the liquid storage tank (7) is covered with a one-way valve (101), and the air hole (10) is matched with a hole plug (102).

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