A weight level switch for fluctuating liquid level with adjustable weight amount

Abstract

The invention discloses a weight liquid level switch with adjustable weight amount for fluctuating liquid level, comprising a weight assembly, including a housing, a travel switch arranged at the front end of the housing, and a weight arranged at the lower end of the travel switch, a connecting rope is arranged between the weight and the travel switch; a plurality of installation slots are arranged inside the weight, and a counterweight ball is detachably connected in the installation slot; and a replacement assembly, the replacement assembly is arranged inside the weight, and the counterweight ball can be more conveniently disassembled and assembled by using the replacement assembly, and when the measured liquid level rises, the weight is lifted by buoyancy, the front end of the travel switch is reset, and the normally open contact is reset. When the measured liquid level drops, the vertical weight uses the steel wire rope to pull down the front end of the travel switch through its own gravity, and the normally open contact of the travel switch is actuated. The travel switch converts this liquid level condition into a standard electrical signal and outputs it through a signal line.

Description

Technical Field

[0001] The invention relates to the technical field of a weight liquid level switch, and in particular to a weight liquid level switch for fluctuating liquid levels with adjustable weight amounts. Background Art

[0002] In the current industrial production field, it is a difficult problem to measure containers or pits with large fluctuations in the measured medium (especially high-temperature media that produce water vapor). Using ultrasonic or radar level meters for measurement is prone to produce condensation at the measuring site, making the measurement results inaccurate; the cable of the float level switch is in direct contact with the measured medium, and the weight of the weight cannot be adjusted according to the specific usage, resulting in poor adaptability. Summary of the invention

[0003] The purpose of this section is to summarize some aspects of embodiments of the present invention and briefly introduce some preferred embodiments. Some simplifications or omissions may be made in this section and the specification abstract and the invention title of this application to avoid blurring the purpose of this section, the specification abstract and the invention title, and such simplifications or omissions cannot be used to limit the scope of the present invention.

[0004] In view of the above problems existing in the prior art weight level switch for fluctuating liquid level with adjustable weight amount, the present invention is proposed.

[0005] Therefore, an object of the present invention is to provide a weight level switch with adjustable weight amount for fluctuating liquid levels.

[0006] To solve the above technical problems, the present invention provides the following technical solutions: a weight liquid level switch for fluctuating liquid levels with adjustable weight amounts, comprising a weight assembly, including a shell, a travel switch arranged at the front end of the shell, and a weight arranged at the lower end of the travel switch, a connecting rope being arranged between the weight and the travel switch; a plurality of mounting grooves being arranged inside the weight, counterweight balls being detachably connected in the mounting grooves; and a replacement assembly, which is arranged inside the weight.

[0007] As a preferred solution of the weight liquid level switch for fluctuating liquid level with adjustable weight amount described in the present invention, a cavity is opened inside the weight, the weight includes a first connecting hemisphere and a second connecting hemisphere connected to the first connecting hemisphere, a receiving plate is rotatably connected to the inner wall of the first connecting hemisphere, and the mounting groove is opened on the receiving plate.

[0008] As a preferred solution of the weight liquid level switch for fluctuating liquid level with adjustable weight amount described in the present invention, wherein: a retention groove cooperating with the second connecting hemisphere is opened in the side wall of the first connecting hemisphere, a rotating shaft extends outward from the upper and lower ends of the second connecting hemisphere, a rotating block is arranged at the upper and lower ends of the first connecting hemisphere, and a matching hole cooperating with the rotating shaft is opened on the rotating block.

[0009] As a preferred solution of the weight liquid level switch for fluctuating liquid level with adjustable weight amount as described in the present invention, wherein: a first driving rod is slidably connected to the side wall of the first connecting hemisphere, one end of the first driving rod is abutted against the lower end of the receiving plate, and the other end extends into the retention groove, a second driving rod is slidably connected to the side wall of the retention groove, a first inclined surface is provided at the rear end of the first driving rod, and a second inclined surface corresponding to the first inclined surface is provided at the front end of the second driving rod.

[0010] As a preferred solution of the weight liquid level switch with adjustable weight amount for fluctuating liquid level described in the present invention, an elastic member is arranged between the first driving rod and the first connecting hemisphere, a protruding surface is arranged on the upper surface of the second driving rod, a mating protruding ring mating with the protruding surface is arranged on the side wall of the second connecting hemisphere, and a flange is arranged on the end side of the second connecting hemisphere.

[0011] As a preferred solution of the weight liquid level switch for fluctuating liquid level with adjustable weight amount described in the present invention, the replacement component includes a driving plate rotatably connected to the mounting groove, a connecting rod rotatably connected to the driving plate, and a clamping block hinged at the end of the connecting rod, a clamping plate is provided on the side surface of the clamping block, a connecting column is provided at the lower end of the steel ball, an external thread is provided on the connecting column, and an internal threaded hole is provided on the driving plate.

[0012] As a preferred solution of the weight liquid level switch for fluctuating liquid level with adjustable weight amount described in the present invention, wherein: an ear plate is provided at the lower end of one of the clamping blocks, an extension rod is provided on the ear plate, and the two ends of the extension rod are respectively connected to the first telescopic rod, and a matching plate is provided at the lower end of the symmetrically arranged clamping block, and a second extension rod is provided on the matching plate, and the first telescopic rod is slidably connected to the second telescopic rod.

[0013] As a preferred solution of the weight liquid level switch with adjustable weight amount for fluctuating liquid level described in the present invention, guide grooves are provided on the side walls of the other two clamping blocks, and sliding grooves cooperating with the guide grooves are provided on the mounting grooves.

[0014] As a preferred solution of the weight liquid level switch with adjustable weight amount for fluctuating liquid level described in the present invention, wherein: a plug plate is arranged on the end side surface of the second connecting hemisphere, a ring groove cooperating with the plug plate is opened on the end side surface of the first connecting hemisphere, a locking plate is slidably connected to the side wall of the second connecting hemisphere, a plurality of grooves are arranged on the upper end of the locking plate, a locking groove cooperating with the locking plate is arranged on the inner wall of the ring groove, a protrusion cooperating with the groove is arranged in the locking groove, and a spring is arranged at the rear end of the protrusion.

[0015] As a preferred solution of the weight liquid level switch for fluctuating liquid level with adjustable weight amount described in the present invention, a rubber layer is provided on both the protrusion and the groove.

[0016] The beneficial effects of the present invention are as follows: when the measured liquid level rises, the buoyancy is used to lift the weight, the front end of the travel switch is reset, and the normally open contact is reset. When the measured liquid level drops, the weight uses the steel wire rope to pull down the front end of the travel switch by its own gravity, and the normally open contact of the travel switch is actuated. The travel switch converts this liquid level into a standard electrical signal and outputs it through the signal line. This electrical signal can drive a secondary meter and other control equipment. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the following briefly introduces the drawings required for describing the embodiments. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative labor. Among them:

[0018] Figure 1 The figure is a schematic diagram of the overall structure of the weight level switch of the present invention for adjusting the weight amount of the fluctuating liquid level.

[0019] Figure 2 This is a schematic structural diagram of the first connecting hemisphere and the second connecting hemisphere described in the weight liquid level switch for fluctuating liquid level with adjustable weight amount of the present invention.

[0020] Figure 3 The present invention is a schematic diagram of the internal structure of the retention tank described in the weight liquid level switch with adjustable weight amount for fluctuating liquid level.

[0021] Figure 4 The invention is a heavy hammer liquid level switch for fluctuating liquid level with adjustable heavy hammer amount. Figure 3 A schematic diagram of the enlarged structure of part A.

[0022] Figure 5 The present invention is a schematic diagram of the replacement assembly structure of a weight level switch for a fluctuating liquid level with an adjustable weight amount.

[0023] Figure 6 The invention is a cross-sectional view of the plug plate and the ring groove structure of the weight level switch for the fluctuating liquid level with adjustable weight amount.

[0024] Figure 7 The invention is a heavy hammer liquid level switch for fluctuating liquid level with adjustable heavy hammer amount. Figure 6 A schematic diagram of the enlarged structure of part A. DETAILED DESCRIPTION

[0025] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and easy to understand, the specific implementation methods of the present invention are described in detail below in conjunction with the accompanying drawings.

[0026] In the following description, many specific details are set forth to facilitate a full understanding of the present invention, but the present invention may also be implemented in other ways different from those described herein, and those skilled in the art may make similar generalizations without violating the connotation of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed below.

[0027] Secondly, the term "one embodiment" or "embodiment" as used herein refers to a specific feature, structure, or characteristic that may be included in at least one implementation of the present invention. The term "in one embodiment" that appears in different places in this specification does not necessarily refer to the same embodiment, nor does it refer to a separate or selective embodiment that is mutually exclusive with other embodiments.

[0028] Secondly, the present invention is described in detail with reference to the schematic diagram. When describing the embodiments of the present invention in detail, for the sake of convenience, the cross-sectional diagrams showing the device structure will not be partially enlarged according to the general scale, and the schematic diagrams are only examples, which should not limit the scope of protection of the present invention. In addition, in actual production, the three-dimensional dimensions of length, width and depth should be included.

[0029] Example 1

[0030] Reference Figure 1 A weight liquid level switch with adjustable weight amount for fluctuating liquid level includes a weight 103 assembly 100, including a shell 101. The shell 101 serves as the main structure of the entire weight 103 switch and plays the role of a supporting and connecting structure. It is in the shape of a box, with several connecting plates arranged at the upper end and bolt holes opened at the upper end to facilitate the operator to install it.

[0031] Furthermore, a travel switch 102 is provided at the front end of the shell 101, and a connecting plug extends outward from the end of the travel switch 102. One end of the connecting plug is connected to a weight 103 through a connecting rope 104. The overall shape of the weight 103 is spherical or barrel-shaped, and the interior is hollow. A plurality of installation grooves 105 are provided inside the weight 103, and a counterweight ball 106 is detachably connected to the installation groove 105. Different numbers of counterweight balls 106 are set according to different detection environments.

[0032] Furthermore, it also includes a replacement component 300, which is arranged inside the weight 103. In the present embodiment, the replacement component 300 includes a cylinder and a clamping plate directly connected to the cylinder. The two clamping plates are arranged opposite to each other to facilitate clamping the counterweight ball 106. The weight 103 is made of 304 stainless steel. The number of steel balls can be added inside the weight 103 according to the use environment and the travel switch 102 provided.

[0033] Operation process: When the measured liquid level rises, the buoyancy is used to lift the weight 103, the front end of the travel switch 102 is reset, and the normally open contact is reset. When the liquid level drops, the weight uses its own gravity to pull down the front end of the travel switch 102 using the wire rope, and the normally open contact of the travel switch 102 is activated. The travel switch 102 converts this liquid level into a standard electrical signal and outputs it through the signal line. This electrical signal can drive secondary meters and other control equipment.

[0034] Example 2

[0035] Reference Figure 1-7 This embodiment is different from the first embodiment in that a cavity is opened inside the weight 103, and the weight 103 includes a first connecting hemisphere 103a and a second connecting hemisphere 103b connected to the first connecting hemisphere 103a, the diameter of the first connecting hemisphere 103a is larger than the diameter of the second connecting hemisphere 103b, and a receiving plate 103c is rotatably connected to the inner wall of the first connecting hemisphere 103a, the rotating plane of the receiving plate 103c is vertically arranged, and the shape is a disc, and the diameter of the receiving plate 103c is the diameter of the first connecting hemisphere 103a.

[0036] Furthermore, the mounting groove 105 is provided on the receiving plate 103c, and a storage groove 200 cooperating with the second connecting hemisphere 103b is provided inside the first connecting hemisphere 103a, and the storage groove 200 is open at one end and closed at the other end, and a rotating shaft 201 extends outward from the upper and lower ends of the second connecting hemisphere 103b, and a rotating block 202 is provided at the upper and lower ends of the first connecting hemisphere 103a, and a matching hole cooperating with the rotating shaft 201 is provided on the rotating block 202, so that the second connecting hemisphere 103b can rotate. After the second connecting hemisphere 103b rotates, it can enter the storage groove 200 from the opening position of the storage groove 200, and at this time, the operator can replace the counterweight ball 106 on the receiving plate 103c.

[0037] Furthermore, a first driving rod 203 is slidably connected to the side wall of the first connecting hemisphere 103a. After sliding, the first driving rod 203 can slide out of or into the retention groove 200, and one end of the first driving rod 203 abuts against the lower end of the receiving plate 103c. The sliding of the first driving rod 203 can push the receiving plate 103c upward or lower, and the other end of the first driving rod 203 extends into the retention groove 200. A second driving rod 204 is slidably connected to the side wall of the retention groove 200. The second driving rod 204 is a flexible rod. A first inclined surface 205 is provided at the rear end of the first driving rod 203, and a second inclined surface 206 corresponding to the first inclined surface 205 is provided at the front end of the second driving rod 204. When the second driving rod 204 slides, the relationship between the second inclined surface 206 and the first inclined surface 205 is used to promote the sliding of the first driving rod 203.

[0038] Preferably, a spring 408 is provided on the outer side of the first driving rod 203 , and the spring 408 always drives the first driving rod 203 to move into the retention groove 200 .

[0039] Furthermore, a dovetail block is provided at the lower end of the second driving rod 204, a dovetail groove cooperating with the dovetail block is provided on the side wall of the retention groove 200, an elastic member 209a is provided between the dovetail block and the dovetail groove, and the elastic member 209a is a spring 408, which always drives the second driving rod 204 to slide away from the first driving rod 203, a convex surface 207 is provided on the upper surface of the second driving rod 204, a flange 209 is provided on the side wall of the second connecting hemisphere 103b, and a flange 209 cooperating with the convex surface 207 is provided on the side wall of the second connecting hemisphere 103b. The mating protruding ring 208 cooperates with the surface 207. When the second connecting hemisphere 103b is screwed into the retention groove 200, the flange 209 will push the protruding surface 207, driving the second driving rod 204 to slide, and then the second driving rod 204 will move accordingly and drive the first driving rod 203. When the second driving rod 204 moves into place, the movement of the second connecting hemisphere 103b will not be affected by the protruding surface 207, and at this time, the mating protruding ring 208 will cooperate with the protruding surface 207 to lock the position of the second driving rod 204.

[0040] Furthermore, a plug plate 500 is provided at the end of the second connecting hemisphere 103b, and a ring groove 501 cooperating with the plug plate 500 is provided on the end of the first connecting plate hemisphere. A locking plate 404 is slidably connected to the end side wall of the plug plate 500, and a micro cylinder is provided at the rear end of the locking plate 404. The micro cylinder can control the sliding of the locking plate 404, and a plurality of grooves 405 are provided at the upper end of the locking plate 404. A plurality of locking grooves 406 are provided on the inner wall of the ring groove 501. A protrusion 407 cooperating with the groove 405 is provided in the locking groove 406, and a spring 408 is provided at the rear end of the protrusion 407. A rubber layer is provided on the protrusion 407 and the groove 405. When the plug plate 500 is inserted into the ring groove 501, interconnection and sealing between them are achieved.

[0041] The rest of the structure is the same as that of Example 1.

[0042] Example 3

[0043] Reference Figure 1-7 This embodiment is different from the above embodiments in that: in this embodiment, the replacement component 300 includes a driving plate 301 rotatably connected to the mounting groove 105, and a connecting rod 302 is rotatably connected to the driving plate 301. The number of the connecting rods 302 is four, and the shape of the connecting rods 302 is L-shaped. A clamping block 303 is provided at the end of each connecting rod 302, and a clamping plate 304 is provided on the side surface of each clamping block 303. The shape of the clamping plate 304 is arc-shaped and faces obliquely upward.

[0044] Furthermore, a connecting column 305 is provided at the lower end of the steel ball, an external thread is opened on the connecting column 305, and an internal thread hole is opened on the driving plate 301, so that when the operator rotates the steel ball, an ear plate 306 is provided at the lower end of one of the clamping blocks 303, and an extension rod is downwardly provided on the lower surface of the ear plate 306, and the first telescopic rods 400 are respectively connected to the two ends of the extension rod, and the two first telescopic rods 400 are arranged in a horizontal direction and parallel to each other, and a matching plate is provided at the lower end of the clamping block 303 which is symmetrically arranged, and a second extension rod is provided on the matching plate, and two second telescopic rods 401 are provided, which correspond to the two first telescopic rods 400 respectively, and the first telescopic rod 400 is slidably connected with the second telescopic rod 401, so as to guide the sliding of the clamping block 303.

[0045] As a preferred embodiment, guide grooves 402 are opened on the side walls of the other two clamping blocks 303, and sliding grooves 403 cooperating with the guide grooves 402 are opened on the mounting groove 105. The groove edges of the sliding grooves 403 cooperate with the guide grooves 402 to guide the sliding of the clamping blocks 303.

[0046] The rest of the structure is the same as that of Example 2.

[0047] Operation process: When replacing, the operator only needs to rotate the second connecting hemisphere 103b, and the flange 209 of the second connecting hemisphere 103b will push the protruding surface 207, driving the second driving rod 204 to slide, and then the second driving rod 204 will move accordingly and drive the first driving rod 203. The first driving rod 203 lifts the receiving plate 103c. At this time, the operator only needs to screw the connecting column 305 at the lower end of the steel ball onto the driving plate 301, and then the clamping operation of the clamping plate 304 can be driven.

[0048] Importantly, it should be noted that the construction and arrangement of the present application shown in a plurality of different exemplary embodiments are only exemplary. Although only a few embodiments are described in detail in this disclosure, it should be readily understood by those who refer to this disclosure that many modifications are possible (e.g., the size, scale, structure, shape and proportion of various elements, and parameter values ​​(e.g., temperature, pressure, etc.), installation arrangement, use of materials, color, directional changes, etc.) without substantially departing from the novel teachings and advantages of the subject matter described in the application. For example, the element shown as integrally formed can be composed of multiple parts or elements, the position of the element can be inverted or otherwise changed, and the nature or number or position of the discrete element can be changed or changed. Therefore, all such modifications are intended to be included in the scope of the present invention. The order or sequence of any process or method steps can be changed or reordered according to alternative embodiments. In the claims, any "device plus function" clause is intended to cover the structure of performing the function described herein, and is not only structurally equivalent but also equivalent structure. Without departing from the scope of the present invention, other replacements, modifications, changes and omissions can be made in the design, operating conditions and arrangement of the exemplary embodiments. Therefore, the invention is not limited to a specific embodiment, but extends to numerous modifications still falling within the scope of the appended claims.

[0049] Additionally, in order to provide a concise description of exemplary embodiments, all features of an actual embodiment (ie, those features that are not relevant to the best mode presently contemplated for carrying out the invention or those that are not relevant to implementing the invention) may not be described.

[0050] It will be appreciated that in the development of any actual implementation, as in any engineering or design project, numerous implementation-specific decisions may be made. Such a development effort may be complex and time-consuming, but will be a routine task of design, fabrication, and production for those of ordinary skill having the benefit of this disclosure without undue experimentation.

[0051] It should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention rather than to limit it. Although the present invention has been described in detail with reference to the preferred embodiments, those skilled in the art should understand that the technical solutions of the present invention may be modified or replaced by equivalents without departing from the spirit and scope of the technical solutions of the present invention, which should all be included in the scope of the claims of the present invention.

Claims

1. A weight level switch for fluctuating liquid level with adjustable weight amount, characterized in that: include, A weight (103) assembly (100) comprises a housing (101), a travel switch (102) arranged at the front end of the housing (101), and a weight (103) arranged at the lower end of the travel switch (102), wherein a connecting rope (104) is provided between the weight (103) and the travel switch (102); A plurality of mounting grooves (105) are provided inside the weight hammer (103), and a counterweight ball (106) is detachably connected to the mounting groove (105); and, A replacement component (300), wherein the replacement component (300) is arranged inside the heavy hammer (103); It also includes a first driving rod (203) slidably connected to the side wall of the first connecting hemisphere (103a), one end of the first driving rod (203) abuts against the lower end of the receiving plate (103c), and the other end extends into the retention groove (200), and a second driving rod (204) slidably connected to the side wall of the retention groove (200), the rear end of the first driving rod (203) is provided with a first inclined surface (205), and the front end of the second driving rod (204) is provided with a second inclined surface (206) corresponding to the first inclined surface (205).

2. The weight level switch for fluctuating liquid level with adjustable weight amount as claimed in claim 1, characterized in that: A cavity is provided inside the weight (103). The weight (103) comprises a first connecting hemisphere (103a) and a second connecting hemisphere (103b) connected to the first connecting hemisphere (103a). A receiving plate (103c) is rotatably connected to the inner wall of the first connecting hemisphere (103a), and the mounting groove (105) is provided on the receiving plate (103c).

3. The weight level switch for fluctuating liquid level with adjustable weight amount as claimed in claim 2, characterized in that: A storage groove (200) cooperating with the second connecting hemisphere (103b) is provided in the side wall of the first connecting hemisphere (103a); a rotating shaft (201) extends outwardly from the upper and lower ends of the second connecting hemisphere (103b); a rotating block (202) is provided at the upper and lower ends of the first connecting hemisphere (103a); and a matching hole cooperating with the rotating shaft (201) is provided on the rotating block (202).

4. The weight level switch for fluctuating liquid level with adjustable weight amount as claimed in claim 2, characterized in that: An elastic member (209a) is provided between the first driving rod (203) and the first connecting hemisphere (103a). The upper surface of the second driving rod (204) is provided with a protruding surface (207), the side wall of the second connecting hemisphere (103b) is provided with a matching protruding ring (208) matching with the protruding surface (207), and the end side of the second connecting hemisphere (103b) is provided with a flange (209).

5. The weight level switch for fluctuating liquid level with adjustable weight amount as claimed in claim 1, characterized in that: The replacement assembly (300) comprises a driving plate (301) rotatably connected to the mounting groove (105), a connecting rod (302) rotatably connected to the driving plate (301), and a clamping block (303) hinged to the end of the connecting rod (302), wherein a clamping plate (304) is provided on a side surface of the clamping block (303). A connecting column (305) is provided at the lower end of the steel ball, an external thread is provided on the connecting column (305), and an internal thread hole is provided on the driving plate (301).

6. The weight level switch for fluctuating liquid level with adjustable weight amount as claimed in claim 5, characterized in that: A lug plate (306) is provided at the lower end of one of the clamping blocks (303), an extension rod is provided on the lug plate (306), both ends of the extension rod are respectively connected to a first telescopic rod (400), a matching plate is provided at the lower end of the symmetrically arranged clamping blocks (303), a second extension rod is provided on the matching plate, and the first telescopic rod (400) is slidably connected to the second telescopic rod (401).

7. The weight level switch for fluctuating liquid level with adjustable weight amount as claimed in claim 6, characterized in that: The other two clamping blocks (303) have guide grooves (402) formed on their side walls, and the mounting groove (105) has a sliding groove (403) that cooperates with the guide grooves (402).

8. The weight level switch for fluctuating liquid level with adjustable weight amount as claimed in claim 2, characterized in that: An insert plate (500) is arranged on the end side surface of the second connecting hemisphere (103b); an annular groove (501) cooperating with the insert plate (500) is provided on the end side surface of the first connecting hemisphere (103a); a locking plate (404) is slidably connected to the side wall of the second connecting hemisphere (103b); a plurality of grooves (405) are arranged on the upper end of the locking plate (404); a locking groove (406) cooperating with the locking plate (404) is arranged on the inner wall of the annular groove (501); a protrusion (407) cooperating with the groove (405) is arranged in the locking groove (406); and a spring (408) is arranged at the rear end of the protrusion (407).

9. The weight level switch for fluctuating liquid level with adjustable weight amount as claimed in claim 8, characterized in that: The convex block (407) and the concave groove (405) are both provided with a rubber layer.

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