Pipe orifice protection device applied to dam piezometric pipe

Abstract

The utility model belongs to the technical field of piezometric tubes, and discloses a tube orifice protection device applied to a dam piezometric tube, which comprises a cover plate, a lifting adjusting structure, a horizontal adjusting structure, two support frames and two protection sleeves, the lifting adjusting structure is used for driving the supporting frame to conduct lifting adjustment relative to the cover plate, the two protective sleeves are symmetrically connected to the bottom face of the cover plate in a sliding mode, and the horizontal adjusting structure is used for driving the two protective sleeves to be close to or away from each other. According to the utility model, through the arrangement of the gear and the rack, the position of the cover plate can be adjusted according to the height of the piezometric tube body exposed out of the ground, so that the protective sleeve can shield the opening of the piezometric tube body conveniently, and the opening of the piezometric tube body can be covered more tightly; the distance between the two protective sleeves can be adjusted at the same time, and the protective sleeves are prevented from being easily separated from the piezometric tube body when covering and protecting the piezometric tube body.

Description

Technical Field

[0001] The utility model belongs to the technical field of pressure measuring tubes, and in particular relates to a pipe mouth protection device applied to a pressure measuring tube of a dam. Background Art

[0002] The piezometer is a seepage monitoring instrument that can be used to monitor the dam body infiltration line, seepage pressure, groundwater level and seepage around the dam, etc. It is widely used in the water conservancy industry. The traditional piezometer mouth is not specially equipped with a protective device, and the mouth is generally installed directly on the top of the piezometer.

[0003] During use, the existing pipe mouth protection device has different heights above the ground of the pipe mouth of the pressure measuring tube, and the height of the protection mechanism cannot be adjusted according to the user's requirements. In addition, during operation, the stability is poor and the protection mechanism is prone to slippage and displacement, thereby affecting the protection effect.

[0004] For example, in the patent document with publication number: CN203572615U, a pressure measuring tube easy-to-open protection device is disclosed, which consists of a tube cap, a tube core, a fastening device, an unlocking device and a magnet. The tube cap is a hollow cylinder, a protrusion is provided on the inner wall in the middle of the tube cap, and a trapezoidal hole penetrating the side wall is provided on the upper side wall of the tube cap; the tube core is a cylinder, and an iron column is provided at the center; one end of the fastening device is a cylinder, and the other end is a triangular column. The fastening device is arranged in the trapezoidal hole on the side wall of the tube cap, and one end of the cylinder leads to the inside of the tube cap; one end of the unlocking device is a triangular hole corresponding to the fastening device, and the other end is a horizontal handle; the unlocking device and the magnet are external devices and are not connected to the tube cap body.

[0005] In the prior art, the length and thickness of the pipe cap cannot be adjusted. Therefore, when faced with pressure measuring tubes of different specifications or pressure measuring tubes exposed at different heights above the ground, the adaptability is insufficient and the protection effect cannot be guaranteed. Utility Model Content

[0006] The purpose of the utility model is to provide a pipe mouth protection device applied to a dam pressure measuring pipe. The height of the protection mechanism can be adjusted according to the requirements of the user, and the adaptability is strong. During operation, the stability is high, and the protection mechanism is not easy to slip and shift, thereby affecting the protection effect.

[0007] The technical solution adopted by the utility model is a pipe mouth protection device applied to a dam pressure measuring pipe, comprising a cover plate, a lifting and adjusting structure, a horizontal adjustment structure, two support frames and two protective sleeves. The two support frames are respectively slidably connected to the two ends of the cover plate, the lifting and adjusting structure is used to drive the support frames to be lifted and adjusted relative to the cover plate, the two protective sleeves are symmetrically slidably connected to the bottom surface of the cover plate, and the horizontal adjustment structure is used to drive the two protective sleeves to move closer to or away from each other.

[0008] Furthermore, the lifting and adjusting structure includes two groups of lifting and adjusting components, and the lifting and adjusting components include a rack, a gear, a handle and a locking unit. A first movable groove is opened on the support frame, and the top end of the rack is fixedly connected to the cover plate, and the rack is inserted in the first movable groove. The gear is rotatably installed in the first movable groove and meshes with the rack. The handle is fixedly connected to the rotating shaft of the gear, and the locking unit is used to limit the rotation of the gear.

[0009] Furthermore, the locking unit includes a pull rod, a spring and a limit block. The pull rod is slidably inserted in the support frame. A second movable groove is opened in the support frame. The limit block is slidably embedded in the second movable groove and fixedly connected to the pull rod. One end of the spring is connected to the limit block and the other end is connected to the inner end surface of the second movable groove. The limit block can interfere with the gear and thereby limit the rotation of the gear.

[0010] Furthermore, the upward side of the limit block is arranged as an inclined surface.

[0011] Furthermore, the horizontal adjustment structure includes a bidirectional screw, a knob and two screw sleeves. The bidirectional screw is rotatably installed in the cover plate. The knob is connected to either end of the bidirectional screw and the two move synchronously. The two screw sleeves are mounted on the bidirectional screw through threaded fittings and are fixedly connected to two protective sleeves respectively.

[0012] Furthermore, the inner wall of the protective sleeve can fit with the outer wall of the pressure measuring tube body, and a rubber pad is arranged on the inner wall of the protective sleeve.

[0013] The beneficial effects of the utility model are:

[0014] The utility model provides a gear and a rack, and the position of the cover plate can be adjusted according to the height of the pressure measuring tube body exposed from the ground, so that the protective cover can cover the opening of the pressure measuring tube body more tightly, and the two-way screw can be provided to adjust the distance between the two protective covers at the same time, and the pressure measuring tube body can be clamped, so as to avoid the protective cover being easily separated from the pressure measuring tube body when covering and protecting the pressure measuring tube body, thereby affecting the protection effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a three-dimensional schematic diagram of the overall structure of the utility model;

[0016] Figure 2 It is a side cross-sectional schematic diagram of the structure of the utility model;

[0017] Figure 3 For the utility model Figure 2 A magnified view of the structure at the middle circle A;

[0018] Figure 4 It is a schematic cross-sectional view of the utility model;

[0019] Explanation of the accompanying drawings: 1. Pressure measuring tube body; 2. Support frame; 3. First movable groove; 4. Gear; 5. Handle; 6. Rack; 7. Cover plate; 8. Second movable groove; 9. Spring; 10. Limit block; 11. Pull rod; 12. Bidirectional screw; 13. Screw sleeve; 14. Protective cover; 15. Knob. DETAILED DESCRIPTION

[0020] In order to make the purpose, technical solution and advantages of the utility model clearer and more understandable, the technical solution of the utility model will be further described in detail below with reference to the accompanying drawings.

[0021] like Figure 1 , Figure 2 , Figure 3 , Figure 4 As shown, the utility model provides a pipe mouth protection device for a dam pressure measuring tube, including a cover plate 7, a lifting and adjusting structure, a horizontal adjustment structure, two support frames 2 and two protective sleeves 14. The two support frames 2 are respectively slidably connected to the two ends of the cover plate 7. The lifting and adjusting structure is used to drive the support frames 2 to be lifted and adjusted relative to the cover plate 7. The two protective sleeves 14 are symmetrically slidably connected to the bottom surface of the cover plate 7. The horizontal adjustment structure is used to drive the two protective sleeves 14 to move closer to or away from each other. The inner wall of the protective sleeve 14 can fit the outer wall of the pressure measuring tube body 1, and a rubber pad is provided on the inner wall of the protective sleeve 14.

[0022] The two support frames 2 are located at both ends of the cover plate 7, forming a downwardly open U-shaped structure with the cover plate 7, and the pressure measuring tube body 1 is located directly below the cover plate 7. The height of the cover plate 7 can be changed by driving the support frame 2 to move up and down relative to the cover plate 7 through the lifting and adjusting structure, thereby changing the position of the protective cover 14 to adapt to the height of the pressure measuring tube body 1 exposed to the ground. Then, the two protective covers 14 can be driven close to each other through the horizontal adjustment structure to clamp the pipe mouth at the top of the pressure measuring tube body 1, thereby achieving a protective effect. Not only can the pipe mouth of the pressure measuring tube body 1 be covered to prevent debris from entering, but the rubber pad can also increase its sealing performance to prevent rainwater from entering the pressure measuring tube body 1 through the gap.

[0023] The lifting and lowering adjustment structure includes two groups of lifting and lowering adjustment components, which include a rack 6, a gear 4, a handle 5 and a locking unit. A first movable groove 3 is opened on the support frame 2. The top end of the rack 6 is fixedly connected to the cover plate 7. The rack 4 is inserted in the first movable groove 3. The gear 4 is rotatably installed in the first movable groove 3 and meshes with the rack 6. The handle 5 is fixedly connected to the rotating shaft of the gear 4. The locking unit is used to limit the rotation of the gear 4.

[0024] The locking unit includes a pull rod 11, a spring 9 and a limit block 10. The pull rod 11 is slidably inserted in the support frame 2. A second movable groove 8 is opened in the support frame 2. The limit block 10 is slidably embedded in the second movable groove 8 and fixedly connected to the pull rod 11. One end of the spring 9 is connected to the limit block 10 and the other end is connected to the inner end surface of the second movable groove 8. The limit block 10 can interfere with the gear 4 and thus limit the rotation of the gear 4. The limit block 10 is set as an inclined surface on the upper side.

[0025] The staff turns the handle 5 to drive the gear 4 to rotate. Since the limit block 10 is set as an inclined surface on the upper side, the gear 4 can interfere with the inclined surface of the limit block 10 when it rotates, thereby pushing the limit block 10 to slide in the second movable groove 8, the spring 9 is compressed, and the pull rod 11 moves toward the outside of the support frame 2. Then, because the gear 4 and the rack 6 are meshed with each other, the rack 6 and the cover plate 7 are fixed and slidably inserted in the first movable groove 3, the rotation of the gear 4 can drive the support frame 2 to move up and down relative to the cover plate 7, changing the cover plate 7 to an appropriate height. Moreover, after the adjustment is completed, due to the presence of the spring 9, the limit block 10 can still be between the two teeth of the gear 4, limiting the rotation of the gear 4 and fixing the height of the cover plate 7, which can prevent the cover plate 7 from moving downward under the action of gravity and affecting the protective function of the protective cover 14.

[0026] Preferably, the teeth of the gear 4 and the rack 6 are both triangular, and the oblique sides of the teeth of the gear 4 and the rack 6 are parallel.

[0027] The horizontal adjustment structure includes a bidirectional screw 12, a knob 15 and two screw sleeves 13. The bidirectional screw 12 is rotatably installed in the cover plate 7. The knob 15 is connected to either end of the bidirectional screw 12 and the two move synchronously. The two screw sleeves 13 are sleeved on the bidirectional screw 12 through threaded fitting and are fixedly connected to two protective sleeves 14 respectively.

[0028] When the staff turns the knob 15, the bidirectional screw 12 can be directly driven to rotate. Since the two screw sleeves 13 are threadedly matched with the bidirectional screw 12 and are respectively fixedly connected to the two protective sleeves 14, and the protective sleeves 14 can only slide relative to the cover plate 7, the two-way screw 12 can drive the two protective sleeves 14 to move closer to or away from each other during the rotation of the rod.

[0029] The overall use process of the utility model is as follows: first, turn the handle 5 to drive the gear 4 to rotate, so that the support frame 2 can be raised and lowered relative to the cover plate 7, and the cover plate 7 is adjusted to a certain height to ensure that the protective cover 14 can be aligned with the pipe opening of the pressure measuring tube body 1, and then cover the device on the pressure measuring tube body 1 so that the support frame 2 is exactly on both sides of the pressure measuring tube body 1, and then turn the knob 15 to drive the bidirectional screw 12 to rotate, so that the protective covers 14 are close to each other, and the pressure measuring tube body 1 is clamped.

[0030] The contents not described in detail in this specification belong to the prior art known to those skilled in the art.

Claims

1. A pipe mouth protection device applied to a dam pressure measuring pipe, characterized in that: It includes a cover plate, a lifting adjustment structure, a horizontal adjustment structure, two support frames and two protective covers. The two support frames are respectively slidably connected to the two ends of the cover plate. The lifting adjustment structure is used to drive the support frames to be lifted and adjusted relative to the cover plate. The two protective covers are symmetrically slidably connected to the bottom surface of the cover plate. The horizontal adjustment structure is used to drive the two protective covers to move closer to or away from each other.

2. The pipe orifice protection device for a dam pressure measuring pipe according to claim 1 is characterized in that: The lifting and adjusting structure includes two groups of lifting and adjusting components, and the lifting and adjusting components include a rack, a gear, a handle and a locking unit. The support frame is provided with a first movable groove, the top end of the rack is fixedly connected to the cover plate, the rack is inserted in the first movable groove, the gear is rotatably installed in the first movable groove and meshes with the rack, the handle is fixedly connected to the rotating shaft of the gear, and the locking unit is used to limit the rotation of the gear.

3. The pipe orifice protection device for a dam pressure measuring pipe according to claim 2 is characterized in that: The locking unit includes a pull rod, a spring and a limit block. The pull rod is slidably inserted in the support frame. The support frame is provided with a second movable groove. The limit block is slidably embedded in the second movable groove and fixedly connected to the pull rod. One end of the spring is connected to the limit block and the other end is connected to the inner end surface of the second movable groove. The limit block can interfere with the gear and thereby limit the rotation of the gear.

4. The pipe orifice protection device for a dam pressure measuring pipe according to claim 3 is characterized in that: The upward side of the limit block is arranged as an inclined surface.

5. The pipe orifice protection device for a dam pressure measuring pipe according to claim 1, characterized in that: The horizontal adjustment structure includes a bidirectional screw, a knob and two screw sleeves. The bidirectional screw is rotatably installed in the cover plate. The knob is connected to either end of the bidirectional screw and the two move synchronously. The two screw sleeves are mounted on the bidirectional screw through threaded fittings and are fixedly connected to two protective sleeves respectively.

6. The pipe orifice protection device for a dam pressure measuring pipe according to claim 1, characterized in that: The inner wall of the protective sleeve can be fitted with the outer wall of the pressure measuring tube body, and a rubber pad is arranged on the inner wall of the protective sleeve.

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