Automatic locking type hydraulic flat valve

Abstract

The utility model relates to the technical field of flat valves, in particular to an automatic locking type hydraulic flat valve which comprises a valve body, a dustproof shell is fixedly connected to the upper surface of the valve body, a hydraulic cylinder is fixedly connected to the upper surface of the dustproof shell, a valve plate is arranged in the valve body, and a rack is arranged in the dustproof shell. A rack is fixedly connected with the upper surface of the valve plate, the rack penetrates through the inner wall of the valve body and extends into the dustproof shell, the upper surface of the rack is fixedly connected with a piston rod, and the surface of the rack is connected with a gear in a meshed mode. Efficient automatic locking and unlocking functions are achieved, when the flat valve is opened and the valve plate moves upwards in place, the pawl interacts with teeth of the ratchet wheel to prevent the ratchet wheel from rotating anticlockwise, so that the positions of the rotating rod and the gear are locked, the valve plate is prevented from moving accidentally, and the design ensures the stability and safety of the flat valve in a closed state.

Description

TECHNICAL FIELD

[0001] The utility model relates to flat valve technical field, specifically is a kind of automatic locking type hydraulic flat valve. BACKGROUND

[0002] In the field of industrial automation and fluid control, flat valve is widely used in various industrial pipeline systems as an important fluid control device.

[0003] In the prior art, the traditional flat valve often has the problem of insufficient stability and safety in the closed state, and the valve plate is easily moved accidentally due to external factors, thereby affecting the normal operation of the entire pipeline system. In addition, in some special situations, such as power interruption or hydraulic system failure, the automatic operation function of the traditional flat valve may fail, at which time a reliable manual backup operation function is needed to ensure the normal operation of the flat valve. To solve the above problems, an automatic locking type hydraulic flat valve is proposed. SUMMARY

[0004] The utility model aims at providing an automatic locking type hydraulic flat valve to solve the problems raised in the background.

[0005] The technical solution of the utility model is as follows: an automatic locking type hydraulic flat valve, comprising a valve body, a dustproof shell fixedly connected to the upper surface of the valve body, a hydraulic cylinder fixedly connected to the upper surface of the dustproof shell, a valve plate arranged in the valve body, a rack fixedly connected to the upper surface of the valve plate, the rack penetrating the inner wall of the valve body and extending into the dustproof shell, a piston rod fixedly connected to the upper surface of the rack, a gear meshingly connected to the surface of the rack, a ratchet fixedly connected to the front end of the gear, a same rotating rod fixedly connected to the inner walls of the gear and the ratchet, a rectangular groove formed in the inner wall of the dustproof shell, a pawl rotatably connected to the inner wall of the rectangular groove, a push rod fixedly connected to the side wall of the pawl, a support column fixedly connected to the inner wall of the rectangular groove, a first spring arranged in the rectangular groove, a fixed rod fixedly connected to the side wall of the pawl, a spring sheet fixedly sleeved to the surface of the rotating rod, a circular tube sleeved to the surface of the rotating rod, a second spring sleeved to the surface of the circular tube, a handle sleeved to the surface of the circular tube, an arc-shaped groove formed in the side wall of the dustproof shell, an electric telescopic rod rotatably connected to the front end of the push rod, a support rod rotatably connected to the inner wall of the electric telescopic rod, and one end of the support rod fixedly connected to the side wall of the dustproof shell.

[0006] Preferably, the size of the valve plate matches the inner wall of the valve body, and the valve plate is slidingly connected to the inner wall of the valve body.

[0007] Preferably, the left end of the rotating rod is rotatably connected with the inner wall of the dustproof shell, and the right end of the rotating rod penetrates the inner wall of the dustproof shell and extends to the outside.

[0008] Preferably, a clamping groove is formed in the surface of the rotating rod, and the inner wall of the circular pipe is fixedly connected with two symmetrically arranged clamping blocks matched with the clamping groove.

[0009] Preferably, the first spring is a tension spring, one end of the first spring is fixedly connected with the surface of the supporting spring, and the other end of the first spring is fixedly connected with the surface of the fixing rod.

[0010] Preferably, the second spring is a compression spring, and the right end of the second spring abuts against the inner wall of the handle.

[0011] The utility model discloses an automatic locking type hydraulic flat valve, which has the following improvements and advantages compared with the prior art.

[0012] Firstly, the utility model discloses a combination of a ratchet wheel, a pawl and a first spring, which realizes efficient automatic locking and unlocking functions.

[0013] Secondly, the utility model discloses a handle, which can manually control the rotation of the rotating rod and the gear, thereby driving the movement of the rack and the valve plate, realizing the opening and closing of the flat valve. BRIEF DESCRIPTION OF DRAWINGS

[0014] The utility model will be further explained in connection with the drawings and examples as follows:

[0015] Figure 1 is the front view structural schematic diagram of the utility model;

[0016] Figure 2 is the hydraulic cylinder structure schematic diagram of the utility model;

[0017] Figure 3 is the cross section structure schematic diagram of the utility model;

[0018] Figure 4It is the second spring structure schematic view of the utility model;

[0019] Figure 5 For Figure 2 The enlarged structure schematic view of A in the middle;

[0020] Figure 6 For Figure 3 The enlarged structure schematic view of B in the middle.

[0021] Mark explanation:

[0022] 1, valve body; 2, dustproof shell; 3, hydraulic cylinder; 4, valve plate; 5, rack; 6, piston rod; 7, gear; 8, ratchet; 9, rotating rod; 10, rectangular groove; 11, ratchet pawl; 12, push rod; 13, support column; 14, first spring; 15, fixed rod; 16, spring leaf; 17, round pipe; 18, second spring; 19, handle; 20, arc-shaped groove; 21, electric telescopic rod; 22, support rod. Specific implementation

[0023] The utility model is described in detail below, and the technical scheme in the embodiment of the utility model is clearly and completely described. Obviously, the described embodiment is only a part of the embodiment of the utility model, not all. Based on the embodiment of the utility model, all other embodiments obtained by the ordinary skilled in the art without creative labor belong to the scope of protection of the utility model.

[0024] The utility model discloses an automatic locking type liquid flat valve, and the technical scheme of the utility model is:

[0025] As Figure 1 - Figure 6As shown, an automatic locking type hydraulic flat plate valve, including the valve body 1, the upper surface of the valve body 1 is fixedly connected with the dustproof shell 2, the upper surface of the dustproof shell 2 is fixedly connected with the hydraulic cylinder 3, the valve body 1 is provided with the valve plate 4, the dustproof shell 2 is provided with the rack 5, the rack 5 is fixedly connected with the upper surface of the valve plate 4, the rack 5 penetrates the inner wall of the valve body 1 and extends into the dustproof shell 2, the upper surface of the rack 5 is fixedly connected with the piston rod 6, the surface of the rack 5 is engagedly connected with the gear 7, the front end of the gear 7 is fixedly connected with the ratchet wheel 8, the inner wall of the gear 7 and the ratchet wheel 8 is fixedly connected with the same rotating rod 9, the inner wall of the dustproof shell 2 is provided with the rectangular groove 10, the inner wall of the rectangular groove 10 is rotatably connected with the pawl 11, the side wall of the pawl 11 is fixedly connected with the push rod 12, the inner wall of the rectangular groove 10 is fixedly connected with the supporting column 13, the first spring 14 is arranged in the rectangular groove 10, the side wall of the pawl 11 is fixedly connected with the fixed rod 15, the surface of the rotating rod 9 is fixedly sleeved with the spring sheet 16, the surface of the rotating rod 9 is sleeved with the circular tube 17, the surface of the circular tube 17 is sleeved with the second spring 18, the surface of the circular tube 17 is sleeved with the handle 19, the side wall of the dustproof shell 2 is provided with the arc-shaped groove 20, the front end of the push rod 12 is rotatably connected with the electric telescopic rod 21, the inner wall of the electric telescopic rod 21 is rotatably connected with the supporting rod 22, one end of the supporting rod 22 is fixedly connected with the side wall of the dustproof shell 2.

[0026] Further, the size of the valve plate 4 matches the inner wall of the valve body 1, the valve plate 4 is slidably connected with the inner wall of the valve body 1, the precise size of the valve plate 4 ensures that it closely fits the inner wall of the valve body 1, thereby effectively preventing fluid leakage between the valve plate 4 and the valve body 1, the sliding connection between the valve plate 4 and the inner wall of the valve body 1 allows smooth movement of the valve plate 4 when opening and closing, ensuring the reliability and durability of the flat plate valve.

[0027] Further, the left end of the rotating rod 9 is rotatably connected with the inner wall of the dustproof shell 2, the right end of the rotating rod 9 penetrates the inner wall of the dustproof shell 2 and extends to the outside, the rotating connection between the rotating rod 9 and the inner wall of the dustproof shell 2 allows smooth rotation of the gear 7 and the ratchet wheel 8, thereby driving the rack 5 and the valve plate 4 to move, the right end of the rotating rod 9 extends to the outside, facilitating the combination of the rotating rod 9 and the circular tube 17, allowing manual operation of the rotating rod 9, and thereby controlling the position of the valve plate 4.

[0028] Further, the surface of the rotating rod 9 is provided with a clamping groove, the inner wall of the circular tube 17 is fixedly connected with two symmetrically arranged clamping blocks, the clamping groove and the clamping block are matched, the clamping groove on the rotating rod 9 is matched with the clamping block on the inner wall of the circular tube 17, by setting the clamping block and the clamping groove, the rotating rod 9 needs to be manually rotated, and positioning is achieved in the circular tube 17 at this time, the clamping block can be clamped into the appropriate position of the clamping groove, then the handle 19 is rotated, thereby driving the rotating rod 9 to rotate.

[0029] Further, the first spring 14 is a tension spring, one end of the first spring 14 is fixedly connected with the surface of the support column 13, the other end of the first spring 14 is fixedly connected with the surface of the fixed rod 15, when the pawl 11 is pushed away, the first spring 14 will be stretched and store energy, when the external force disappears, the first spring 14 will release energy, push the pawl 11 to reset, so as to ensure that the pawl 11 can be accurately engaged with or separated from the teeth on the ratchet wheel 8, and the reliability of locking and unlocking between the pawl 11 and the ratchet wheel 8 is enhanced.

[0030] Further, the second spring 18 is a compression spring, the right end of the second spring 18 abuts against the inner wall of the handle 19, through the arrangement, the spring sheet 16 and the handle 19 are always subjected to the elastic force of the second spring 18, and then the handle 19 can be stably sleeved on the outer tube 17 through the cooperation of the clamping groove and the clamping block.

[0031] Working principle: In use, the initial state of the flat valve is in the open state, when the flat valve needs to be closed, the hydraulic cylinder 3 and the electric telescopic rod 21 are started, the electric telescopic rod 21 is retracted to drive the push rod 12 to move upward along the arc trajectory of the arc-shaped groove 20, the push rod 12 drives the pawl 11 to move together and separate from the ratchet wheel 8, so that the ratchet wheel 8 is unlocked and can be rotated counterclockwise, at the same time, the hydraulic cylinder 3 drives the piston rod 6 to move downward, the piston rod 6 drives the rack 5 and the valve plate 4 to move downward together, the rack 5 drives the gear 7 to rotate due to the meshing effect, the gear 7 drives the ratchet wheel 8 in the unlocked state to rotate, and the valve plate 4 can be moved to the bottom of the valve body 1, at this time the flat valve is closed, when the flat valve needs to be opened, the piston rod 6 is driven by the hydraulic cylinder 3 to move upward, the rack 5 is driven by the piston rod 6 to move upward, since the rack 5 is meshed with the gear 7, the gear 7 and the ratchet wheel 8 rotate, the rotation of the ratchet wheel 8 pushes the pawl 11 away, when the valve plate 4 moves to the appropriate position, the hydraulic cylinder 3 stops working, at this time the piston rod 6, the rack 5, the gear 7 and the ratchet wheel 8 stop moving, at this time the rack 5 tries to move downward due to the action of gravity, and drives the gear 7 and the ratchet wheel 8 to rotate counterclockwise, through the action of the pawl 11 on the teeth of the ratchet wheel 8, the ratchet wheel 8 cannot rotate counterclockwise, so as to lock the position of the rotating rod 9 and the gear 7, prevent the valve plate 4 from moving accidentally, and realize the self-locking function, when the hydraulic cylinder 3 is damaged or power failure, manual operation can be carried out through the handle 19, first, the push rod 12 is moved in the arc-shaped groove 20, so that the ratchet wheel 8 is in the unlocked state, then the handle 19 is rotated, the clamping block in the outer tube 17 is moved in the clamping groove of the spring sheet 16, moves to the appropriate position, the clamping block slides along the horizontal clamping groove, through the elastic force of the second spring 18, the clamping block tightly abuts against the inner wall of the clamping groove, at this time the handle 19 is rotated, through the cooperation of the clamping block and the clamping groove, the rotating rod 9 rotates with the handle 19, the rotating rod 9 drives the gear 7 to rotate, the rack 5 meshed with the gear 7 moves up and down, the rack 5 drives the valve plate 4 to move, so as to realize the opening and closing of the flat valve by manual control.

[0032] The above description enables one of ordinary skill in the art to make and use the present application. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein can be applied to other embodiments without departing from the spirit or scope of the application. Thus, the present application is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. An automatic locking type hydraulic flat slide valve comprising a valve body (1), characterized in that: The upper surface of the valve body (1) is fixedly connected with a dustproof shell (2), the upper surface of the dustproof shell (2) is fixedly connected with a hydraulic cylinder (3), the valve body (1) is provided with a valve plate (4), the dustproof shell (2) is provided with a rack (5), the rack (5) is fixedly connected with the upper surface of the valve plate (4), the rack (5) penetrates the inner wall of the valve body (1) and extends into the dustproof shell (2), the upper surface of the rack (5) is fixedly connected with a piston rod (6), the surface of the rack (5) is meshingly connected with a gear (7), the front end of the gear (7) is fixedly connected with a ratchet wheel (8), the inner walls of the gear (7) and the ratchet wheel (8) are fixedly connected with the same rotating rod (9), the inner wall of the dustproof shell (2) is provided with a rectangular groove (10), the inner wall of the rectangular groove (10) is rotatably connected with a pawl (11), the side wall of the pawl (11) is fixedly connected with a push rod (12), the inner wall of the rectangular groove (10) is fixedly connected with a supporting column (13), the rectangular groove (10) is provided with a first spring (14), the side wall of the pawl (11) is fixedly connected with a fixed rod (15), the surface of the rotating rod (9) is fixedly sleeved with a spring sheet (16), the surface of the rotating rod (9) is sleeved with a circular tube (17), the surface of the circular tube (17) is sleeved with a second spring (18), the surface of the circular tube (17) is sleeved with a handle (19), the side wall of the dustproof shell (2) is provided with an arc-shaped groove (20), the front end of the push rod (12) is rotatably connected with an electric telescopic rod (21), the inner wall of the electric telescopic rod (21) is rotatably connected with a supporting rod (22), one end of the supporting rod (22) is fixedly connected with the side wall of the dustproof shell (2).

2. The automatic locking type hydraulic flat slide valve according to claim 1, wherein: The size of the valve plate (4) matches the inner wall of the valve body (1), and the valve plate (4) is slidably connected with the inner wall of the valve body (1).

3. The automatic locking hydraulic flat slide valve according to claim 1, wherein: The left end of the rotating rod (9) is rotatably connected with the inner wall of the dustproof shell (2), and the right end of the rotating rod (9) penetrates the inner wall of the dustproof shell (2) and extends to the outside.

4. The automatic locking hydraulic flat slide valve according to claim 1, wherein: The surface of the rotating rod (9) is provided with a clamping groove, the inner wall of the circular tube (17) is fixedly connected with two symmetrically arranged clamping blocks, and the clamping groove matches the clamping blocks.

5. The automatic locking hydraulic flat slide valve as claimed in claim 1, wherein: The first spring (14) is a tensile spring, one end of the first spring (14) is fixedly connected with the surface of the supporting column (13), and the other end of the first spring (14) is fixedly connected with the surface of the fixed rod (15).

6. An automatic locking type hydraulic flat slide valve according to claim 1, wherein: The second spring (18) is a compression spring, and the right end of the second spring (18) abuts against the inner wall of the handle (19).

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