CN219954436U

CN219954436U - Lifting switch structure and indication protection device

Info

Publication number: CN219954436U
Application number: CN202321555239.6U
Authority: CN
Inventors: 刘宇轩; 韩明睿; 张帆; 耿玮; 白小军; 张军; 张君一; 刘效娜; 王军太; 张有财; 焦汉森; 柳付红
Original assignee: Huaneng Lanzhou Xigu Thermal Power Co ltd
Current assignee: Huaneng Lanzhou Xigu Thermal Power Co ltd
Priority date: 2023-06-19
Filing date: 2023-06-19
Publication date: 2023-11-03
Anticipated expiration: 2033-06-19

Abstract

The utility model relates to the technical field of pipeline industry, in particular to a lifting switch structure and an indication protection device, wherein a supporting component comprises a supporting base, a power column fixedly arranged in the center of the supporting base, a supporting platform fixedly connected with the top surface of the power column and a lifting component positioned in the center of the power column and the supporting platform; the lifting assembly comprises a lifting actuating rod, indication units positioned on two sides of the lifting actuating rod and a crank arranged on one side of the lifting actuating rod. The protection assembly comprises protection sleeves positioned on two sides of the indication unit, a monitor electrically connected with the indication unit, and a limiting table fixedly arranged on the supporting platform. The lifting switch structure can monitor the actual action condition of the valve core at any time no matter whether the pressure of the medium in the pipeline is high or low, and judge whether the valve core is completely opened or closed, so that the manpower and time loss are reduced; the protection device effectively protects the core structure, prevents the structure from being damaged by external reasons, and can be quickly and flexibly disassembled to meet the daily maintenance requirements.

Description

Lifting switch structure and indication protection device

Technical Field

The utility model relates to the field of pipeline industry, in particular to a lifting switch structure and an indication protection device.

Background

The common low-pressure steam extraction pipeline is characterized in that the valve core is directly connected with a limit crank, and the heavy hammer is connected to the limit crank, namely, the heavy hammer follows the action through the crank when the valve core acts. The original design of the position indicating device of the check valve is the same as that of a non-weight check valve (a valve core is not directly connected with a limit crank), and in actual operation, when the pneumatic check valve is opened remotely, the actual valve core is still in a closed position (the valve core slightly acts and the position switch state is not changed) due to too low pressure of medium in a pipeline, at the moment, the remote place cannot judge whether the check valve is actually opened or not, and the check and the confirmation must be carried out on site, so that higher workload and trouble are easily brought to staff, and potential safety hazards are generated if the check and the confirmation are not timely.

What is needed is a switch structure indicating device which can confirm whether a valve core is completely opened or closed at any time, avoids the trouble of checking and confirming on site by personnel, and has a certain protection structure to prevent the core mechanism from being damaged by external collision.

Disclosure of Invention

This section is intended to outline some aspects of embodiments of the utility model and to briefly introduce some preferred embodiments. Some simplifications or omissions may be made in this section as well as in the description of the utility model and in the title of the utility model, which may not be used to limit the scope of the utility model.

In view of the problems that the existing valve core position indicating device cannot effectively display whether the valve core is completely opened or closed, personnel are required to check and confirm the valve core on site, and time and labor are wasted.

In order to solve the technical problems, the utility model provides the following technical scheme: the support assembly comprises a support base, a power column fixedly arranged in the center of the support base, a support platform fixedly connected with the top surface of the power column and a lifting assembly positioned in the centers of the power column and the support platform;

the lifting assembly comprises a lifting execution rod, indication units positioned on two sides of the lifting execution rod and a crank arranged on one side of the lifting execution rod.

As a preferable mode of the lifting switch structure of the utility model, wherein: the fixed slot is fixedly arranged in the center of the support base, the bottom end of the power column is positioned in the fixed slot and fixedly connected with the support base, the support rod is fixedly arranged at the top end of the power column, and the other end of the support rod is fixedly connected with the support platform.

As a preferable mode of the lifting switch structure of the utility model, wherein: the lifting groove is fixedly formed in the top surface of the power column, the lifting channel is fixedly arranged on the supporting platform, the lifting groove and the lifting channel are located at the same axis, and the lifting actuating rod can vertically move along the lifting groove and the lifting channel.

As a preferable mode of the lifting switch structure of the utility model, wherein: the support platform is fixedly provided with a first indication module and a second indication module, the first indication module faces one side of the lifting execution rod and is provided with a first switch, the first indication module is also provided with a second switch, the second switch is located above the first switch, and the second indication module faces one side of the lifting execution rod and is provided with a third switch and a fourth switch.

As a preferable mode of the lifting switch structure of the utility model, wherein: the crank is towards the first indication end of first indication module's one end fixedly connected with first indication end, lift actuating lever top fixedly is provided with the second indication end.

As a preferable mode of the lifting switch structure of the utility model, wherein: the crank one side is fixedly provided with a connecting shaft hole, a rotating shaft is fixedly connected in the connecting shaft hole, and two ends of the rotating shaft are fixedly connected with the inner wall of the device.

The lifting switch structure has the beneficial effects that: whether the pressure of the medium in the pipeline is high or low or not, the actual action condition of the valve core can be monitored at any time, whether the valve core is completely opened or closed or not can be judged, and the manpower and time loss are reduced.

In view of the problem that the prior lifting switch structure core mechanism lacks protection and is easy to damage, an indication protection device is provided.

In order to solve the technical problems, the utility model also provides the following technical scheme: the protection assembly comprises protection sleeves positioned on two sides of the indication unit, a monitor electrically connected with the indication unit through signals and a limiting table fixedly arranged on the supporting platform.

As a preferred embodiment of the indication protection device according to the present utility model, wherein: the protection sleeve is characterized in that the two sides of the protection sleeve are fixedly provided with telescopic grooves, springs are fixedly arranged in the telescopic grooves, and the other ends of the springs are fixedly connected with clamping blocks.

As a preferred embodiment of the indication protection device according to the present utility model, wherein: the protection sleeve shell slides along the inner wall of the limiting table, the inner wall of the limiting table is fixedly provided with a containing groove, and the clamping block can horizontally slide along the inner wall of the containing groove.

As a preferred embodiment of the indication protection device according to the present utility model, wherein: the sliding type anti-falling clamping block is characterized in that a pushing block is arranged in the accommodating groove in a sliding mode, one side of the pushing block is located in the accommodating groove, the other side of the pushing block is located on the outer wall of the limiting table, and anti-falling clamping blocks are fixedly arranged on two sides of the pushing block respectively.

The beneficial effects of the indicating protection device are as follows: the core structure is effectively protected, the structure is prevented from being damaged by external reasons, and meanwhile, the structure can be quickly and flexibly disassembled to meet the daily overhaul and maintenance requirements.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present utility model, the drawings that are needed in the description of the embodiments will be briefly described below, it being obvious that the drawings in the following description are only some embodiments of the present utility model, and that other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art. Wherein:

FIG. 1 is a schematic diagram of the overall structure of the present utility model.

Fig. 2 is a schematic diagram showing the separation of parts of the lifting switch structure in the utility model.

Fig. 3 is a schematic view of another view of the lifting switch structure in the present utility model.

Fig. 4 is a plan view of the cooperation between the protective sleeve and the limiting table.

FIG. 5 is a logic diagram of a switch and monitor according to the present utility model

Detailed Description

In order that the above-recited objects, features and advantages of the present utility model will become more readily apparent, a more particular description of the utility model will be rendered by reference to specific embodiments thereof which are illustrated in the appended drawings.

In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present utility model, but the present utility model may be practiced in other ways other than those described herein, and persons skilled in the art will readily appreciate that the present utility model is not limited to the specific embodiments disclosed below.

Further, reference herein to "one embodiment" or "an embodiment" means that a particular feature, structure, or characteristic can be included in at least one implementation of the utility model. The appearances of the phrase "in one embodiment" in various places in the specification are not necessarily all referring to the same embodiment, nor are separate or alternative embodiments mutually exclusive of other embodiments.

Further, in describing the embodiments of the present utility model in detail, the cross-sectional view of the device structure is not partially enlarged to a general scale for convenience of description, and the schematic is only an example, which should not limit the scope of protection of the present utility model. In addition, the three-dimensional dimensions of length, width and depth should be included in actual fabrication.

Example 1

Referring to fig. 1 to 2, a first embodiment of the present utility model provides a lifting switch structure.

The support assembly 100 provides effective support protection for the whole device, and the support base 101 has been fixedly connected with to the whole device bottommost, is fixedly provided with at the top surface of support base 101 and is connected with power post 102, and power post 102 can be the cylinder, is fixedly connected with supporting platform 103 at the top surface of power post 102. The power column 102 and the supporting platform 103 are provided with a lifting assembly 200 in the center, and the power column 102 and the supporting platform 103 are provided with vertical spaces positioned at the same axle center so that the lifting assembly 200 can vertically move under the action of the power column 102.

The center of the power column 102 is movably connected with a lifting actuating rod 201, the power column 102 can provide power for lifting or descending of the lifting actuating rod 201, the two sides of the lifting actuating rod 201 are provided with indication units 202, and the indication units 202 are fixed on the support platform 103. Along with the lifting or descending of the lifting execution rod 201, the switch on the indication unit 202 can be driven to be opened or closed, the indication unit 202 is located at two sides of the lifting execution rod 201, the two sides are respectively a first indication module 202a and a second indication module 202b, a first switch 202c and a second switch 202c-1 are arranged on one side of the first indication module 202a, facing the lifting execution rod 201, and the second switch 202c-1 is arranged above the first switch 202 c. The second indication module 202b is also provided with a third switch 202c-2 and a fourth switch 202c-3, the fourth switch 202c-3 is positioned above the third switch 202c-2, and the indication unit 202 is in remote signal connection with any monitoring device, so that the monitoring device can observe conveniently.

The crank 203 is arranged on one side of the lifting actuating rod 201, a connecting shaft hole 203a is fixedly formed in one side of the crank 203, a rotating shaft 203a-1 is arranged to penetrate through the connecting shaft hole 203a, the rotating shaft 203a-1 is fixedly connected to the inner wall of any device so that the crank 203 can rotate through the rotating shaft 203a-1, a heavy hammer is fixedly connected to one end of the crank 203, and the heavy hammer can be matched with the internal pressure of a pipeline device to assist the valve core to be opened due to the fact that the weight of the valve core is large.

The crank 203 is fixedly connected with a first indicating end 201a towards one end of the first indicating module 202a, a second indicating end 201b is fixedly arranged at the top end of the lifting actuating rod 201, a second indicating end 201b is also fixedly arranged at the top end of the lifting actuating rod 201, and the second indicating end 201b only acts on the second indicating module 202b towards the second indicating module 202b. As the power column 102 acts on the lifting actuating lever 201 to lift it, the second indicating terminal 201b leaves the third switch 202c-2 first, and then touches the fourth switch 202c-3, at this time, the monitoring device confirms that the whole device has been initially turned on.

The device is initially opened to enable the pressure in the pipeline of the device to be increased, the valve core is opened, the heavy hammer 204 drives the crank 203 to move along with the valve core, so that the first indicating end 201a is driven to rise, the first indicating end 201a defaults due to the action of gravity and is in a contact state with the first switch 202c, the first indicating end 201a is not contacted with the first switch 202c any more after rising, and therefore the receiving signal of the monitoring equipment weakens and disappears, and the fact that the valve core is opened is known.

When the valve core enters a full-opening stage from preliminary opening, the first indication end 201a can continuously ascend until contacting with the second switch 202c-1, at the moment, the monitoring equipment receives a new signal to confirm that the valve core is fully opened, the valve core can be ensured to be smoothly opened only by remote monitoring, and the 'false closing' caused by unstable pressure does not need secondary manual confirmation of staff, so that the labor is saved.

When the whole device needs to be closed, the device is initially closed, the power column 102 drives the lifting actuating rod 201 to descend, the second indicating end 201b is far away from the fourth switch 202c-3 until the third switch 202c-2 is contacted, the monitoring equipment receives a signal to know that the device is in a closed state, and then the valve core reversely repeats the process, so that the first indicating end 201a contacts the first switch 202c, and the monitoring equipment receives the signal to ensure that the valve core is completely closed.

Example 2

Referring to fig. 1 to 3, a second embodiment of the present utility model is based on the previous embodiment, except that the structure of the elevating assembly 200 is further optimized to the mating structure of the supporting assembly 100.

A fixed slot 101a is fixedly arranged in the center of the support base 101, the radius of the bottom end of the power column 102 is the same as that of the fixed slot 101a, and the power column 102 is positioned in the fixed slot 101a and fixedly connected with the support base 101. A plurality of small support rods 102a are fixedly connected to the top end of the power column 102, and a support platform 103 is fixedly supported at the other end of the support rods 102 a.

The lifting groove 102b is fixedly formed in the top surface of the power column 102, the lifting executing rod 201 can vertically move along the lifting groove 102b under the driving action of the power column 102, the lifting channel 103a is fixedly arranged on the supporting platform 103, the lifting channel 103a and the lifting groove 102b are located at the same axial center position, and the lifting executing rod 201 passes through the lifting groove 102b and the lifting channel 103a to reach the upper portion of the supporting platform 103 for subsequent movement.

The lifting execution rod 201 is provided with an indication unit 202 on both sides, and the indication unit 202 is fixed on the support platform 103. Along with the lifting or descending of the lifting execution rod 201, the switch on the indication unit 202 can be driven to be opened or closed, the indication unit 202 is located at two sides of the lifting execution rod 201, the two sides are respectively a first indication module 202a and a second indication module 202b, a first switch 202c and a second switch 202c-1 are arranged on one side of the first indication module 202a, facing the lifting execution rod 201, and the second switch 202c-1 is arranged above the first switch 202 c. The second indication module 202b is also provided with a third switch 202c-2 and a fourth switch 202c-3, the fourth switch 202c-3 is positioned above the third switch 202c-2, and the indication unit 202 is in remote signal connection with any monitoring device, so that the monitoring device can observe conveniently.

Example 3

Referring to fig. 1 to 5, a third embodiment of the present utility model is based on any of the above embodiments, with an indication guard added.

The protection assembly 300 provides protection for the entire core structure, and the indication unit 202 is sleeved with the protection casing 301, and the protection casing 301 is provided with a space capable of accommodating the indication unit 202 without affecting the cooperation in the first two embodiments. A limiting table 303 is also fixedly arranged on the supporting platform 103, the protective casing 301 is inserted from above the indicating unit 202, and the bottom enters the gap between the limiting table 303 and the indicating unit 202.

The telescopic slots 301a are fixedly arranged on two sides of the protective casing 301, the telescopic slots 301a are positioned at positions of the two sides of the protective casing 301, the springs 301a-1 are fixedly arranged in each telescopic slot 301a, the clamping blocks 301b are fixedly connected to the other ends of the springs 301a-1, and the clamping blocks 301b can be extruded into the telescopic slots 301 a.

The shape of the clamping block 301b is set to be triangular with rounded corners, the clamping block 301b is located on the outer side of the protection casing 301 in a default state, when the protection casing 301 is sleeved on the indicating unit 202 to start to enter the limiting table 303, the inclined surface of the clamping block 301b is extruded to the upper surface of the limiting table 303 and is extruded into the telescopic groove 301a, and the clamping block 301b enables the spring 301a-1 to generate outward thrust in the extrusion process.

The fixture block 301b continues to descend along the inner wall of the limiting platform 303 along with the protection sleeve 301, and the accommodating groove 303a is fixedly formed in the inner wall of the limiting platform 303, so that when the fixture block 301b descends to the position of the accommodating groove 303a, the fixture block 301b can be outwards ejected under the action of the spring 301a-1 due to the fact that the inner wall of the limiting platform 303 is not limited, and the fixture block 301b enters the accommodating groove 303a, and can be firmly clamped with the accommodating groove 303a due to the fact that the upper surface of the fixture block 301b is a horizontal plane.

The push block 303a-1 is slidably arranged in the accommodating groove 303a, one end of the push block 303a-1 is positioned in the accommodating groove 303a, the other end of the push block 303a-1 is positioned on the outer wall of the limiting table 303, and the push block 303a-1 is fixedly provided with the anti-falling clamping block 303a-2, so that the push block 303a-1 is fixed by the outer shell of the limiting table 303 no matter pushed outwards or inwards and cannot slip. When the indication unit 202 needs to be overhauled, the push block 303a-1 is pushed inwards to press the clamping block 301b to return to the telescopic groove 301a, so that the clamping block can be contacted and clamped, and the protective sleeve 301 can be taken out manually.

The monitor 302 is electrically connected to the indication unit 202, and the signal can be transmitted to the monitor 302 in real time according to the cooperation of embodiments 1 and 2.

It is important to note that the construction and arrangement of the utility model as shown in the various exemplary embodiments is illustrative only. Although only a few embodiments have been described in detail in this disclosure, those skilled in the art who review this disclosure will readily appreciate that many modifications are possible (e.g., variations in sizes, dimensions, structures, shapes and proportions of the various elements, values of parameters (e.g., temperature, pressure, etc.), mounting arrangements, use of materials, colors, orientations, etc.) without materially departing from the novel teachings and advantages of the subject matter described in this application. For example, elements shown as integrally formed may be constructed of multiple parts or elements, the position of elements may be reversed or otherwise varied, and the nature or number of discrete elements or positions may be altered or varied. Accordingly, all such modifications are intended to be included within the scope of present utility model. The order or sequence of any process or method steps may be varied or re-sequenced according to alternative embodiments. In the claims, any means-plus-function clause is intended to cover the structures described herein as performing the recited function and not only structural equivalents but also equivalent structures. Other substitutions, modifications, changes and omissions may be made in the design, operating conditions and arrangement of the exemplary embodiments without departing from the scope of the present utility models. Therefore, the utility model is not limited to the specific embodiments, but extends to various modifications that nevertheless fall within the scope of the appended claims.

Furthermore, in an effort to provide a concise description of the exemplary embodiments, all features of an actual implementation may not be described (i.e., those not associated with the best mode presently contemplated for carrying out the utility model, or those not associated with practicing the utility model).

It should be appreciated that in the development of any such actual implementation, as in any engineering or design project, numerous implementation-specific decisions may be made. Such a development effort might be complex and time consuming, but would nevertheless be a routine undertaking of design, fabrication, and manufacture for those of ordinary skill having the benefit of this disclosure.

It should be noted that the above embodiments are only for illustrating the technical solution of the present utility model and not for limiting the same, and although the present utility model has been described in detail with reference to the preferred embodiments, it should be understood by those skilled in the art that the technical solution of the present utility model may be modified or substituted without departing from the spirit and scope of the technical solution of the present utility model, which is intended to be covered in the scope of the claims of the present utility model.

Claims

1. A lifting switch structure, characterized in that: comprising the steps of (a) a step of,

the support assembly (100) comprises a support base (101), a power column (102) fixedly arranged in the center of the support base (101), a support platform (103) fixedly connected with the top surface of the power column (102) and a lifting assembly (200) positioned in the centers of the power column (102) and the support platform (103);

the lifting assembly (200) comprises a lifting actuating rod (201), indication units (202) positioned on two sides of the lifting actuating rod (201), and a crank (203) arranged on one side of the lifting actuating rod (201).

2. The lifting switch structure of claim 1, wherein: the utility model discloses a power column, including support base (101), power column (102), support platform (103), support base (101) center is fixed to have seted up fixed slot (101 a), power column (102) bottom be located in fixed slot (101 a) and with support base (101) fixed connection, power column (102) top is fixed to be provided with bracing piece (102 a), bracing piece (102 a) other end with supporting platform (103) fixed connection.

3. The lifting switch structure of claim 2, wherein: lifting grooves (102 b) are fixedly formed in the top surface of the power column (102), lifting channels (103 a) are fixedly arranged on the supporting platform (103), the lifting grooves (102 b) and the lifting channels (103 a) are located at the same axis, and the lifting executing rod (201) can vertically move along the lifting grooves (102 b) and the lifting channels (103 a).

4. A lifting switch structure as claimed in claim 2 or 3, wherein: the lifting device is characterized in that a first indication module (202 a) and a second indication module (202 b) are fixedly arranged on the supporting platform (103), a first switch (202 c) is arranged on one side of the first indication module (202 a) towards the lifting execution rod (201), a second switch (202 c-1) is further arranged on the first indication module (202 a), the second switch (202 c-1) is located above the first switch (202 c), and a third switch (202 c-2) and a fourth switch (202 c-3) are arranged on one side of the second indication module (202 b) towards the lifting execution rod (201).

5. The lift switch structure of claim 4, wherein: one end of the crank (203) facing the first indication module (202 a) is fixedly connected with a first indication end head (201 a), and the top end of the lifting execution rod (201) is fixedly provided with a second indication end head (201 b).

6. The lift switch structure of claim 5, wherein: a connecting shaft hole (203 a) is fixedly formed in one side of the crank (203), a rotating shaft (203 a-1) is fixedly connected in the connecting shaft hole (203 a), and two ends of the rotating shaft (203 a-1) are fixedly connected with the inner walls of the device.

7. An indication guard, characterized by: comprising the lifting switch structure as claimed in claim 6, and,

the protection assembly (300) comprises protection sleeves (301) positioned on two sides of the indication unit (202), a monitor (302) electrically connected with the indication unit (202) in a signal mode and a limiting table (303) fixedly arranged on the supporting platform (103).

8. The indication guard of claim 7, wherein: the protection sleeve is characterized in that telescopic grooves (301 a) are fixedly formed in two sides of the protection sleeve body (301), springs (301 a-1) are fixedly arranged in the telescopic grooves (301 a), and clamping blocks (301 b) are fixedly connected to the other ends of the springs (301 a-1).

9. The indication guard of claim 8, wherein: the protection sleeve (301) slides along the inner wall of the limiting table (303), the inner wall of the limiting table (303) is fixedly provided with a containing groove (303 a), and the clamping block (301 b) can horizontally slide along the inner wall of the containing groove (303 a).

10. The indication guard of claim 9, wherein: the sliding type anti-falling device is characterized in that a pushing block (303 a-1) is arranged in the accommodating groove (303 a) in a sliding mode, one side of the pushing block (303 a-1) is located in the accommodating groove (303 a), the other side of the pushing block is located on the outer wall of the limiting table (303), and anti-falling clamping blocks (303 a-2) are fixedly arranged on two sides of the pushing block (303 a-1) respectively.