Flashboard limiting mechanism for hard sealing gate valve

Abstract

The utility model belongs to the technical field of gate valves, and particularly discloses a gate plate limiting mechanism for a hard sealing gate valve, which comprises a valve body, the outer surface of the valve body is fixedly connected with two symmetrical fixing blocks, one side of each fixing block is provided with an adjusting groove, and the inside of each adjusting groove is slidably connected with two symmetrical first moving rods. The limiting mechanism comprises two first moving rods, the interiors of the first moving rods are of hollow structures, the interiors of the two first moving rods are both slidably connected with second moving rods extending to the exteriors of the first moving rods, and the two second moving rods are both fixedly connected with positioning plates. The two-way threaded rod drives the two first moving rods to move relatively under the limitation of the adjusting groove, the two positioning plates can move relatively, meanwhile, the two positioning plates can clamp, position and limit an external pipeline, and therefore the device can be installed on the external pipeline more smoothly.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of gate valve, concretely is a kind of for hard sealing gate valve gate plate limiting mechanism. BACKGROUND

[0002] The opening and closing member of hard sealing gate valve is gate plate, the movement direction of gate plate is perpendicular to fluid direction, gate valve can only be fully opened and closed, cannot be adjusted and throttled.

[0003] After searching, the existing gate plate is connected with threaded screw rod, threaded screw rod is connected with adjusting wheel disc, threaded screw rod is rotated synchronously by adjusting wheel disc rotation, and gate plate is vertically lifted along the inner wall of valve body by threaded screw rod rotation, but some hard sealing gate valves in the prior art are manually supported by workers during installation on pipeline, and then connected and installed in alignment with pipeline, so that workers are inconvenient to install gate valve, and the alignment and installation of the device are more inconvenient, and the technical innovation is carried out on the basis of the existing device for the above situation. UTILITY MODEL CONTENT

[0004] The utility model aims at providing a kind of for hard sealing gate valve gate plate limiting mechanism to solve the problem that workers are manually supported by workers during installation on pipeline, and then connected and installed in alignment with pipeline, so that workers are inconvenient to install gate valve, and the alignment and installation of the device are more inconvenient.

[0005] To achieve the above object, the utility model provides the following technical scheme: a kind of for hard sealing gate valve gate plate limiting mechanism, including valve body, the outer surface of the valve body is fixedly connected with two symmetrical fixed blocks, the side of the fixed block is equipped with adjusting slot, the inside of the adjusting slot is slidably connected with two symmetrical first mobile rods, the inside of the first mobile rod is hollow structure, the inside of two first mobile rods is slidably connected with the second mobile rod extending to the outside of first mobile rod, two second mobile rods are fixedly connected with positioning plate, the inner surface of the positioning plate is provided with rubber layer, the bottom of two second mobile rods is equipped with power slot, and the inside of the power slot is provided with power adjusting device.

[0006] Preferably, the inside of the adjusting slot is rotatably connected with the two-way threaded rod extending to the outside of fixed block, the surface of the two-way threaded rod is screw-connected with the inside of first mobile rod, and two first mobile rods are respectively arranged on two opposite threads on the surface of two-way threaded rod.

[0007] Preferably, the power adjustment device includes a limiting rod, the surface of which is fixedly connected to the interior of the power groove. Positioning blocks extending to the outside of the power grooves are slidably connected to the interiors of both power grooves. The interiors of the positioning blocks are slidably connected to the surface of the limiting rod. A first connecting rod and a second connecting rod are fixedly connected to the adjacent sides of the two positioning blocks, respectively. A tension spring movably sleeved on the limiting rod is fixedly connected to one side of each positioning block. The end of the tension spring away from the positioning block is fixedly connected to the inner wall of the power groove.

[0008] Preferably, the first connecting rod has a groove inside, and the surface of the second connecting rod is slidably connected to the inside of the groove.

[0009] Preferably, a handle is fixedly connected to one side of the first connecting rod.

[0010] Preferably, one side of the fixing block has a groove that communicates with the inside of the adjusting groove.

[0011] Preferably, a moving groove is provided on the adjacent sides of the two first moving rods, and a positioning groove is provided inside the moving groove.

[0012] Preferably, the surface of the positioning block is slidably connected to the interior of both the positioning groove and the moving groove.

[0013] Compared with the prior art, the beneficial effects of this utility model are:

[0014] 1. This gate limiting mechanism for hard-seal gate valves uses a bidirectional threaded rod to drive two first moving rods to move relative to each other under the constraint of the adjusting groove, and enables two positioning plates to move relative to each other. At the same time, the two positioning plates can clamp and position the external pipeline, thereby making the device easier to install on the external pipeline and making it easier for operators to use the device. In addition, the positioning plates can clamp and position the pipeline more closely through the rubber layer, and the two positioning plates can make the valve body more easily aligned and limited with the pipeline.

[0015] 2. The gate limiting mechanism for hard-seal gate valves uses a first connecting rod and a second connecting rod to drive the positioning block to slide out of the positioning groove and into the moving groove, thereby stretching the power groove. This allows the positioning block to drive the second moving rod to move inside the moving groove, adjusting the lengths of the second and first moving rods, and enabling the device to clamp and fix pipes at different positions. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the structure of a gate limiting mechanism for a hard-seal gate valve according to the present invention;

[0017] Figure 2It is the structure schematic view of fixed block of the utility model;

[0018] Figure 3 It is the structure schematic view of first moving rod of the utility model;

[0019] Figure 4 It is the structure schematic view of second connecting rod of the utility model;

[0020] Figure 5 It is the structure schematic view of the utility model Figure 4 of A.

[0021] In the drawing: 1, valve body;2, fixed block;3, adjusting groove;4, recess;5, first moving rod;6, second moving rod;7, positioning plate;8, moving groove;9, positioning groove;10, positioning block;11, first connecting rod;12, second connecting rod;13, sliding groove;14, handle;15, power groove;16, limiting rod;17, tension spring;18, two-way threaded rod. Specific implementation

[0022] Please refer to Figures 1-5 , the utility model provides technical scheme: a kind of for hard sealing gate valve gate plate limiting mechanism, including valve body 1, valve body 1 is existing structure, here do not do much, the outer surface of valve body 1 is fixedly connected with two symmetrical fixed blocks 2, two fixed blocks 2 are provided with same structure, the side of fixed block 2 is equipped with adjusting groove 3, adjusting groove 3 is slidably connected with two symmetrical first moving rods 5 in its inside, two first moving rods 5 are provided with same structure, the inside of first moving rod 5 is hollow structure, the inside of two first moving rods 5 is slidably connected with second moving rod 6 extending to the outside of first moving rod 5, two second moving rods 6 are fixedly connected with positioning plate 7, the inner surface of positioning plate 7 is provided with rubber layer, positioning plate 7 can be more closely clamped and positioned limiting pipe by rubber layer, and by two positioning plates 7, valve body 1 can be more smoothly aligned and positioned with pipe, and valve body 1 can be more smoothly installed in pipe, so that staff can more conveniently use device, the bottom of two second moving rods 6 is equipped with power groove 15, and power groove 15 is provided with power adjusting device in its inside.

[0023] The inside of the adjusting groove 3 is rotatably connected with a two-way threaded rod 18 extending to the outside of the fixed block 2, the surface of the two-way threaded rod 18 is threadedly connected with the inside of the first moving rod 5, two first moving rods 5 are arranged on two opposite threads on the surface of the two-way threaded rod 18 respectively, the two-way threaded rod 18 is rotated by the worker, the two-way threaded rod 18 drives the two first moving rods 5 to move relatively under the limitation of the adjusting groove 3, and the two positioning plates 7 can move relatively, and the two positioning plates 7 can clamp, position and limit the external pipeline, so that the device can be more smoothly installed on the external pipeline, and the worker can more conveniently use the device.

[0024] The power adjusting device comprises a limiting rod 16, the surface of the limiting rod 16 is fixedly connected with the inside of the power groove 15, the inside of two power grooves 15 is slidably connected with a positioning block 10 extending to the outside of the power groove 15, the inside of the positioning block 10 is slidably connected with the surface of the limiting rod 16, the proximal side of the two positioning blocks 10 is fixedly connected with a first connecting rod 11 and a second connecting rod 12 respectively, the inside of the first connecting rod 11 is provided with a sliding groove 13, the surface of the second connecting rod 12 is slidably connected with the inside of the sliding groove 13, the second connecting rod 12 and the first connecting rod 11 can control the movement of the two second moving rods 6 through the sliding connection of the second connecting rod 12 and the sliding groove 13, and the adjustment of the second moving rod 6 is more convenient, one side of the positioning block 10 is fixedly connected with a tension spring 17 sleeved on the limiting rod 16, and the end of the tension spring 17 away from the positioning block 10 is fixedly connected with the inner wall in the inside of the power groove 15.

[0025] One side of the first connecting rod 11 is fixedly connected with a handle 14, the first connecting rod 11 can be more conveniently moved through the handle 14.

[0026] One side of the fixed block 2 is provided with a groove 4 in communication with the inside of the adjusting groove 3, and the handle 14 is more smoothly stored through the groove 4.

[0027] The inner part of the moving groove 8 is provided with a positioning groove 9, and a plurality of positioning grooves 9 are equidistantly arranged on the first moving rod 5.

[0028] Working principle: for this kind of one for hard sealing gate valve gate plate limiting mechanism first through the staff to make the bidirectional screw rod 18 rotate, the bidirectional screw rod 18 is limited in the adjusting groove 3 drives two first moving rods 5 to move relatively, and makes two positioning plates 7 can move relatively, through the staff to make the handle 14 drive the first connecting rod 11 and the second connecting rod 12 move forward, make the first connecting rod 11 and the second connecting rod 12 drive the positioning block 10 slide out of the inner part of the positioning groove 9 and slide into the inner part of the moving groove 8, make the power groove 15 stretch, so that the positioning block 10 can drive the second moving rod 6 to move in the inner part of the moving groove 8, the length of the second moving rod 6 and the first moving rod 5 is adjusted, the device can clamp and fix the pipeline at different positions, when the second moving rod 6 moves to the appropriate position, the staff releases the handle 14, the tension spring 17 resets to drive the positioning block 10 to slide into the inner part of the positioning groove 9 and realize the position fixing of the second moving rod 6, the position adjustment of the second moving rod 6 is more convenient, and the use range of the device is improved.

[0029] Although the embodiments of the present application have been shown and described, it should be understood by those skilled in the art that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of the present application, and the scope of the present application is defined by the appended claims and their equivalents.

Claims

1. A gate limiting mechanism for a hard-seal gate valve, comprising a valve body (1), characterized in that: Two symmetrical fixing blocks (2) are fixedly connected to the outer surface of the valve body (1). An adjustment groove (3) is provided on one side of the fixing block (2). Two symmetrical first moving rods (5) are slidably connected inside the adjustment groove (3). The inside of the first moving rod (5) is a hollow structure. A second moving rod (6) extending to the outside of the first moving rod (5) is slidably connected inside the two first moving rods (5). A positioning plate (7) is fixedly connected to the two second moving rods (6). A rubber layer is provided on the inner surface of the positioning plate (7). A power groove (15) is provided at the bottom of the two second moving rods (6). A power adjustment device is provided inside the power groove (15).

2. The gate limiting mechanism for a hard-seal gate valve according to claim 1, characterized in that: The adjustment groove (3) is rotatably connected to a bidirectional threaded rod (18) extending to the outside of the fixed block (2). The surface of the bidirectional threaded rod (18) is threadedly connected to the inside of the first moving rod (5). The two first moving rods (5) are respectively set on two opposite threads on the surface of the bidirectional threaded rod (18).

3. The gate limiting mechanism for a hard-seal gate valve according to claim 1, characterized in that: The power adjustment device includes a limiting rod (16), the surface of which is fixedly connected to the inside of the power groove (15). The inside of each of the two power grooves (15) is slidably connected to a positioning block (10) extending to the outside of the power groove (15). The inside of the positioning block (10) is slidably connected to the surface of the limiting rod (16). The adjacent sides of the two positioning blocks (10) are respectively fixedly connected to a first connecting rod (11) and a second connecting rod (12). One side of the positioning block (10) is fixedly connected to a tension spring (17) that is movably sleeved on the limiting rod (16). The end of the tension spring (17) away from the positioning block (10) is fixedly connected to the inner wall of the inside of the power groove (15).

4. The gate limiting mechanism for a hard-seal gate valve according to claim 3, characterized in that: The first connecting rod (11) has a groove (13) inside, and the surface of the second connecting rod (12) is slidably connected to the inside of the groove (13).

5. A gate limiting mechanism for a hard-seal gate valve according to claim 4, characterized in that: A handle (14) is fixedly connected to one side of the first connecting rod (11).

6. The gate limiting mechanism for a hard-seal gate valve according to claim 1, characterized in that: The fixing block (2) has a groove (4) on one side that communicates with the inside of the adjustment groove (3).

7. A gate limiting mechanism for a hard-seal gate valve according to claim 3, characterized in that: The two first moving rods (5) are provided with moving grooves (8) on their adjacent sides, and the moving grooves (8) are provided with positioning grooves (9) inside.

8. A gate limiting mechanism for a hard-seal gate valve according to claim 7, characterized in that: The surface of the positioning block (10) is slidably connected to the interior of the positioning groove (9) and the moving groove (8).

Images