Screw protection device with visualized gate opening degree

Abstract

The utility model relates to a gate opening visual screw protection device which comprises a sheath, a screw arranged in the sheath, a sliding mark sleeved on the sheath and connected with the sheath in a sliding manner, and a counterweight positioned in the sheath, a first winding piece is arranged at the end, close to the top, of the sheath. The screw is connected with the balance weight piece through a first connecting line, and the first connecting line passes through the first winding piece. The sliding mark penetrates through the top of the sheath through a second connecting line to be connected with the balance weight piece. The sliding mark ascends or descends along with the screw rod through a pure mechanical structure, the opening degree of the gate can be obtained by observing the position of the sliding mark, and due to the fact that the pure mechanical structure is simple, the improvement cost is low, and maintenance is easy.

Description

Technical Field

[0001] The utility model relates to the field of gates, and more specifically, to a screw rod protection device with visualized gate opening. Background Art

[0002] In underground sewage treatment plants, since the gate is located underground, it is difficult to visually see the gate opening. Therefore, the gate opening is generally judged by the screw connected to the gate and used to drive the gate up or down. Because the screw is electrically lifted, the outer surface state of the bolt will affect its function, so the screw exposed to the environment is protected from dust and water to reduce the rust on the screw. The existing protective cover uses a magnetic ring protective cover, which can not only observe the height of the screw, but also prevent dust and water. However, because it requires magnetic force, it needs to be supported by electricity and the cost of the components involved is also high, which has certain maintenance difficulty and maintenance cost. Utility Model Content

[0003] In order to overcome the problem of difficult maintenance in the above-mentioned prior art, the utility model provides a screw protection device with visualized gate opening, which adopts a purely mechanical mechanism, is simpler in structure and easy to maintain.

[0004] In order to solve the above technical problems, the technical solution adopted by the utility model is: a screw protection device with visualized gate opening, comprising a sleeve with a screw arranged inside the sleeve; also comprising a sliding mark which is sleeved on the sleeve and slidably connected to the sleeve, and a counterweight located inside the sleeve; a first winding piece is provided at one end of the sleeve close to the top, the screw is connected to the counterweight by a first connecting line and the first connecting line passes through the first winding piece; the sliding mark is connected to the counterweight by passing through the top of the sleeve by a second connecting line.

[0005] In the above technical solution, the top of the sheath is closed, leaving only a through hole for the second connecting line to pass through, and the bottom of the sheath leaves a through hole for the screw to pass through or is provided with an opening, and the bottom of the sheath is installed on the drive device or the frame to achieve the closure of the sheath and the dustproof and waterproof functions. When the screw rises, the counterweight connected to the screw will drop, and the drop of the counterweight will pull the sliding mark to rise along the outer surface of the sheath, that is, when the screw rises, the sliding mark will rise, and vice versa, when the screw drops, the sliding mark will drop, so the position of the screw can be judged by the position of the sliding mark and the opening of the gate can be known.

[0006] Preferably, a mounting cover is installed on the top of the sheath, and a second winding piece is arranged on the mounting cover, and the second connecting line passes through the top of the sheath after passing through the second winding piece and is connected to the counterweight. The second winding piece reduces the friction of the second connecting line, reduces the resistance of the sliding mark to rise or fall, and also reduces the wear of the second connecting line.

[0007] Preferably, the sliding mark is provided with a raised ring, the second connecting wire is connected to the raised ring, and the second connecting wire is located in a section from the raised ring to the second winding member and is parallel to the axis of the sheath. The raised ring can make it easier to connect the second connecting wire to the sliding mark, and the second connecting wire remains parallel to the sheath in the section from the raised ring to the second winding member, so that the sliding mark is easier to rise or fall.

[0008] Preferably, the mounting cover is provided with a limiting hole for the second connecting wire to pass through. The limiting hole can limit the second connecting wire to prevent it from deviating and prevent the second connecting wire from detaching from the second winding member.

[0009] Preferably, the first winding member and the second winding member are pulleys, which can reduce the friction force on the first connecting line and the second connecting line, and make the screw rod, the counterweight and the sliding mark easier to lift.

[0010] Preferably, the counterweight can be a solid structure or a hollow structure. When the counterweight is a solid structure, the first winding member is arranged on the side wall near one end of the top of the sheath, and the first connecting line forms a certain angle with the movement direction of the screw. Since the counterweight is a solid structure, the screw has a short rise limit and cannot continue to rise when it reaches the point where it contacts the counterweight.

[0011] The counterweight is a hollow structure, and the inner diameter of the counterweight is larger than the outer diameter of the screw. The first winding piece is located on the inner top surface of the sheath, the first connecting line is parallel to the movement direction of the screw, and the screw can pass through the counterweight, and the rising limit of the screw is to reach the top of the sheath. The greater the rising distance of the screw, the larger the gate opening.

[0012] Preferably, at least two second winding members are provided and are evenly distributed along the circumference; at least two first winding members are provided and are evenly distributed along the circumference on the inner top surface of the sheath; the number of first connecting wires is consistent with the number of first winding members, and the number of second connecting wires is consistent with the number of second winding members. The screw, counterweight and sliding mark can be subjected to at least two evenly distributed traction forces, so that the three remain stable when rising and falling. If there is only one first connecting wire, the second connecting wire, the first winding member and the second winding member or they are unevenly distributed, then a guide member needs to be provided to stabilize the movement of the screw, the counterweight and the sliding mark.

[0013] Preferably, the first winding member and the second winding member are arranged in a staggered arrangement. The staggered arrangement means that the second winding member and the first winding member are staggered, such as the first winding member is located between adjacent second winding members. Under this arrangement, the first connecting wire and the second connecting wire will not be entangled.

[0014] Preferably, a driving device is further included, the bottom of the sleeve is mounted on the driving device, and the driving device is used to drive the screw to rise or fall in the sleeve. The driving device may include a motor and a transmission member threadedly connected to the screw, and the motor drives the transmission member to rotate and then drives the screw to rise or fall.

[0015] Compared with the prior art, the beneficial effects of the utility model are: a purely mechanical structure is adopted to realize that the sliding mark follows the screw to rise or fall, so that the opening of the gate can be known by observing the position of the sliding mark, and the purely mechanical structure is simple in structure, low in modification cost and simple in maintenance. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a stereoscopic diagram of a screw protection device with visualized gate opening of the utility model;

[0017] Figure 2 It is an internal schematic diagram of a screw protection device with visualized gate opening of the utility model;

[0018] Figure 3 It is a stereoscopic diagram of another embodiment of a screw rod protection device with visualized gate opening of the utility model. DETAILED DESCRIPTION

[0019] The drawings are only for illustrative purposes and cannot be construed as limiting the present invention. To better illustrate the present embodiment, some parts of the drawings may be omitted, enlarged, or reduced, and do not represent the size of the actual product. For those skilled in the art, it is understandable that some well-known structures and their descriptions may be omitted in the drawings. The positional relationships described in the drawings are only for illustrative purposes and cannot be construed as limiting the present invention.

[0020] The same or similar numbers in the drawings of the embodiments of the present invention correspond to the same or similar parts; in the description of the present invention, it should be understood that if the terms "upper", "lower", "left", "right", "long", "short" and the like indicate directions or positional relationships based on the directions or positional relationships shown in the drawings, they are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific direction, be constructed and operated in a specific direction. Therefore, the terms describing the positional relationship in the drawings are only used for illustrative purposes and cannot be understood as limitations on this patent. For ordinary technicians in this field, the specific meanings of the above terms can be understood according to specific circumstances.

[0021] The technical solution of the present invention is further described in detail below through specific embodiments and in conjunction with the accompanying drawings:

[0022] Example 1

[0023] like Figure 1-2 The figure shows an embodiment 1 of a screw protection device for visualizing the gate opening, comprising a sleeve 1 with a screw 2 therein, a sliding mark 3 which is sleeved on the sleeve 1 and slidably connected to the sleeve 1, and a counterweight 4 located in the sleeve 1; a first winding piece 5 is provided at one end of the sleeve 1 close to the top, the screw 2 is connected to the counterweight 4 through a first connecting line 6 and the first connecting line 6 passes through the first winding piece 5; the sliding mark 3 is connected to the counterweight 4 through a second connecting line 7 passing through the top of the sleeve 1.

[0024] Specifically, a mounting cover 8 is installed on the top of the sheath 1, and a second winding member 9 is provided on the mounting cover 8. The second connecting wire 7 passes through the second winding member 9 and passes through the top of the sheath 1 to connect with the counterweight 4. The second winding member 9 reduces the friction of the movement of the second connecting wire 7, reduces the resistance of the sliding mark 3 to rise or fall, and also reduces the wear of the second connecting wire 7. In this embodiment, a raised ring 301 is provided on the sliding mark 3, and the second connecting wire 7 is connected to the raised ring 301. The second connecting wire 7 is located in a section from the raised ring 301 to the second winding member 9 and is parallel to the axis of the sheath 1. The raised ring 301 can make it easier to connect the second connecting wire 7 to the sliding mark 3, and the second connecting wire 7 remains parallel to the sheath 1 in the section from the raised ring 301 to the second winding member 9, so that the sliding mark 3 is easier to rise or fall.

[0025] The working principle or workflow of the utility model is as follows: the top of the sheath 1 is closed, leaving only a through hole for the second connecting line 7 to pass through, and the bottom of the sheath 1 leaves a through hole for the screw 2 to pass through or is provided with an opening, and the bottom installation of the sheath 1 will be installed on the driving device 10 or the frame to achieve the closure of the sheath 1 and realize the dustproof and waterproof functions.

[0026] When the screw rod 2 rises, the first connecting line 6 will loosen upwards. At this time, the counterweight 4 will drop due to the action of gravity and tighten the first connecting line 6 and pull the second connecting line 7 to move. The sliding mark 3 rises along the outer surface of the sheath 1 along with the second connecting line 7. That is, when the screw rod 2 rises, the sliding mark 3 will rise. Conversely, when the screw rod 2 falls, the sliding mark 3 will fall. Therefore, the position of the screw rod 2 can be judged by the position of the sliding mark 3, and then the opening of the gate can be known.

[0027] The beneficial effects of this embodiment are as follows: a purely mechanical structure is used to realize that the sliding mark 3 follows the screw 2 to rise or fall, so that the gate opening can be known by observing the position of the sliding mark 3, and the purely mechanical structure is simple in structure, low in modification cost and simple in maintenance.

[0028] Example 2

[0029] like Figure 1-2 The figure shows an embodiment 1 of a screw protection device for visualizing the gate opening, comprising a sleeve 1 with a screw 2 therein, a sliding mark 3 which is sleeved on the sleeve 1 and slidably connected to the sleeve 1, and a counterweight 4 located in the sleeve 1; a first winding piece 5 is provided at one end of the sleeve 1 close to the top, the screw 2 is connected to the counterweight 4 through a first connecting line 6 and the first connecting line 6 passes through the first winding piece 5; the sliding mark 3 is connected to the counterweight 4 through a second connecting line 7 passing through the top of the sleeve 1.

[0030] Specifically, a mounting cover 8 is installed on the top of the sheath 1, and a second winding member 9 is provided on the mounting cover 8. The second connecting wire 7 passes through the second winding member 9 and passes through the top of the sheath 1 to connect with the counterweight 4. The second winding member 9 reduces the friction of the movement of the second connecting wire 7, reduces the resistance of the sliding mark 3 to rise or fall, and also reduces the wear of the second connecting wire 7. In this embodiment, a raised ring 301 is provided on the sliding mark 3, and the second connecting wire 7 is connected to the raised ring 301. The second connecting wire 7 is located in a section from the raised ring 301 to the second winding member 9 and is parallel to the axis of the sheath 1. The raised ring 301 can make it easier to connect the second connecting wire 7 to the sliding mark 3, and the second connecting wire 7 remains parallel to the sheath 1 in the section from the raised ring 301 to the second winding member 9, so that the sliding mark 3 is easier to rise or fall.

[0031] In order to prevent the second connecting wire 7 from being separated from the second winding member 9, a limiting hole is provided on the mounting cover 8 for the second connecting wire 7 to pass through. The limiting hole can limit the second connecting wire 7 to prevent it from deflecting.

[0032] In this embodiment, the first winding member 5 and the second winding member 9 are both pulleys, which can reduce the friction force on the first connecting line 6 and the second connecting line 7, and make the screw rod 2, the counterweight 4 and the sliding mark 3 easier to lift.

[0033] Furthermore, the counterweight 4 is a hollow structure, and the inner diameter of the counterweight 4 is larger than the outer diameter of the screw 2. The first winding member 5 is located on the inner top surface of the sheath 1, the first connecting line 6 is parallel to the movement direction of the screw 2, and the screw 2 can pass through the counterweight 4, and the rising limit of the screw 2 is to reach the top of the sheath 1. The greater the rising distance of the screw 2, the larger the opening of the gate.

[0034] Specifically, at least two second winding members 9 are provided and are evenly distributed along the circumference; at least two first winding members 5 are provided and are evenly distributed along the circumference on the inner top surface of the sheath 1; the number of first connecting wires 6 is consistent with the number of first winding members 5, and the number of second connecting wires 7 is consistent with the number of second winding members 9. The screw 2, the counterweight 4 and the sliding mark 3 can be subjected to at least two evenly distributed traction forces, so that the three can remain stable when rising and falling. The first winding member 5 and the second winding member 9 are arranged in a staggered manner. The staggered arrangement means that the second winding member 9 and the first winding member 5 are staggered, such as the first winding member 5 is located between adjacent second winding members 9. In this distribution, the first connecting wire 6 and the second connecting wire 7 will not be entangled.

[0035] In this embodiment, two second winding members 9 are provided and are evenly distributed along the circumference, and two first winding members 5 are provided and are evenly distributed along the circumference on the inner top surface of the sheath 1, that is, the second winding members 9 are symmetrically distributed on the mounting cover 8, and the first winding members 5 are symmetrically distributed on the inner top surface of the sheath 1, and the connecting line of the two first winding members 5 is perpendicular to the connecting line of the two second winding members 9, that is, the second winding member 9 is located between adjacent first winding members 5. In this case, the first connecting line 6 and the second connecting line 7 are connected to the counterweight 4 just at equal distances on the counterweight 4 in a circle, which not only prevents the first connecting line 6 and the second connecting line 7 from being entangled, but also makes the force on the counterweight 4 more uniform.

[0036] The working principle or workflow of the utility model is as follows: the top of the sheath 1 is closed, leaving only a through hole for the second connecting line 7 to pass through, and the bottom of the sheath 1 leaves a through hole for the screw 2 to pass through or is provided with an opening, and the bottom installation of the sheath 1 will be installed on the driving device 10 or the frame to achieve the closure of the sheath 1 and realize the dustproof and waterproof functions.

[0037] When the screw rod 2 rises, the first connecting line 6 will loosen upwards. At this time, the counterweight 4 will drop due to the action of gravity and tighten the first connecting line 6 and pull the second connecting line 7 to move. The sliding mark 3 rises along the outer surface of the sheath 1 along with the second connecting line 7. That is, when the screw rod 2 rises, the sliding mark 3 will rise. Conversely, when the screw rod 2 falls, the sliding mark 3 will fall. Therefore, the position of the screw rod 2 can be judged by the position of the sliding mark 3, and then the opening of the gate can be known.

[0038] During installation, the top surface of the sliding mark 3 is configured to be flush or nearly flush with the top surface of the screw 2. Nearly flush means that the top surface of the screw 2 is slightly higher or lower. When the screw 2 rises or falls, the sliding mark 3 can accurately indicate the position of the top surface of the screw 2, which makes it more intuitive for the staff to observe. In addition, in order to facilitate the staff to guide the gate opening corresponding to the position of the sliding mark 3, scale lines can also be added to the sheath 1.

[0039] The beneficial effects of this embodiment are as follows: a purely mechanical structure is used to realize that the sliding mark 3 follows the screw 2 to rise or fall, so that the gate opening can be known by observing the position of the sliding mark 3, and the purely mechanical structure is simple in structure, low in modification cost and simple in maintenance.

[0040] Example 3

[0041] Embodiment 3 of a screw protection device with gate opening visualization, based on embodiment 1 or 2, as Figure 3 As shown, it also includes a driving device 10, the bottom of the sheath is mounted on the driving device 10, and the driving device 10 is used to drive the screw 2 to rise or fall in the sheath 1. The driving device 10 can include a motor and a transmission member threadedly connected to the screw 2, and the motor drives the transmission member to rotate and then drives the screw 2 to rise or fall.

[0042] The remaining working principles and features of this embodiment are consistent with any of the above embodiments.

[0043] Obviously, the above embodiments of the utility model are only examples for clearly explaining the utility model, and are not intended to limit the implementation methods of the utility model. For ordinary technicians in the relevant field, other different forms of changes or modifications can be made on the basis of the above description. It is not necessary and impossible to list all the implementation methods here. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the utility model should be included in the protection scope of the claims of the utility model.

Claims

1. A screw protection device for visualizing gate opening, comprising a sleeve (1), wherein a screw (2) is arranged in the sleeve (1), characterized in that: It also comprises a sliding mark (3) sleeved on the sleeve (1) and slidably connected to the sleeve (1), and a counterweight (4) located in the sleeve (1); a first winding piece (5) is provided at one end of the sleeve (1) close to the top, the screw (2) is connected to the counterweight (4) via a first connecting line (6), and the first connecting line (6) passes through the first winding piece (5); the sliding mark (3) is connected to the counterweight (4) via a second connecting line (7) passing through the top of the sleeve (1).

2. A screw protection device with gate opening visualization according to claim 1, characterized in that: A mounting cover (8) is mounted on the top of the protective sleeve (1), a second winding piece (9) is arranged on the mounting cover (8), and the second connecting wire (7) passes through the second winding piece (9) and then through the top of the protective sleeve (1) to be connected to the counterweight (4).

3. A screw protection device with gate opening visualization according to claim 2, characterized in that: The sliding mark (3) is provided with a raised ring (301), the second connecting line (7) is connected to the raised ring (301), and the second connecting line (7) is located in a section from the raised ring (301) to the second winding member (9) and is parallel to the axis of the sheath (1).

4. A screw protection device with gate opening visualization according to claim 3, characterized in that: The mounting cover (8) is provided with a limiting hole for the second connecting line (7) to pass through.

5. A screw protection device with gate opening visualization according to claim 2, characterized in that: The first winding member (5) and the second winding member (9) are both pulleys.

6. A screw protection device with gate opening visualization according to claim 2, characterized in that: The counterweight (4) is a hollow structure, and the inner diameter of the counterweight (4) is greater than the outer diameter of the screw (2).

7. A screw protection device with gate opening visualization according to claim 6, characterized in that: The counterweight (4) is coaxially arranged with the screw rod (2).

8. The screw protection device with gate opening visualization according to claim 2, characterized in that: At least two of the second winding members (9) are provided and are equidistantly distributed along the circumference; at least two of the first winding members (5) are provided and are equidistantly distributed along the circumference on the inner top surface of the sheath (1); the number of the first connecting wires (6) is consistent with the number of the first winding members (5), and the number of the second connecting wires (7) is consistent with the number of the second winding members (9).

9. The screw protection device with gate opening visualization according to claim 2, characterized in that: The first winding member (5) and the second winding member (9) are arranged alternately.

10. A screw protection device with gate opening visualization according to any one of claims 1 to 9, characterized in that: It also comprises a driving device (10), the bottom of the sleeve (1) is mounted on the driving device (10), and the driving device (10) is used to drive the screw rod (2) to rise or fall in the sleeve (1).

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