Fireproof cut-off electro-hydraulic actuating mechanism capable of sensing temperature autonomously

Abstract

The utility model relates to the technical field of electro-hydraulic actuating mechanisms, and discloses an automatic temperature sensing fireproof cut-off electro-hydraulic actuating mechanism which comprises an electro-hydraulic actuating mechanism and a valve structure, a fixing assembly comprises an abutting block, a first rectangular block, a second rectangular block and a first spring, one end of the first rectangular block is provided with the second rectangular block, and the other end of the first rectangular block is provided with the first spring. A cavity is formed in the second rectangular block, abutting blocks are slidably connected into the cavity, the number of the abutting blocks is two, the abutting blocks are symmetrically arranged, a first spring is installed between the two abutting blocks, one end of each abutting block penetrates through the second rectangular block and extends towards the outer side, and the outer surface of the first rectangular block and the outer surface of each abutting block abut against the outer surface of the mounting plate. According to the clamping device, the abutting block, the first rectangular block, the second rectangular block and the first spring are used in cooperation to replace a bolt and nut fixing mode, the phenomenon that after repeated use, the nut or the bolt is abraded, and consequently the connecting position of the two clamping plates is loosened is avoided, and the good fixing effect is achieved.

Description

Technical Field

[0001] The utility model relates to the technical field of electro-hydraulic actuators, in particular to an electro-hydraulic actuator capable of autonomously sensing temperature and preventing fire from cutting off. Background Art

[0002] Electro-hydraulic actuator, an electro-hydraulic actuator is an actuator that converts a standard input signal into a 0-degree to 90-degree angular displacement output torque or linear displacement output force corresponding to the input signal through electro-hydraulic conversion and hydraulic amplification.

[0003] The utility model patent application document with publication number "CN214579172U" discloses a linear electro-hydraulic actuator, which is mainly composed of an actuator body, a motor, a handwheel, a support frame, an actuator positioning plate, a valve positioning plate, a valve pipeline and a stabilizing mechanism. This technical solution can maintain a stable relationship between the actuator body and the valve, and there will be no displacement of the connection between the actuator body and the valve due to excessive force.

[0004] The electro-hydraulic actuator disclosed in the above document has the following defects: the first stabilizing ring and the second stabilizing ring of the electro-hydraulic actuator are fixed by the cooperation of the second fastening bolt, the fixing groove and the nut. However, after long-term repeated use, the surfaces of the second fastening bolt and the nut may wear, thereby causing the connection between the first stabilizing ring and the second stabilizing ring to loosen, affecting the use effect.

[0005] It can be seen from this that the existing electro-hydraulic actuators do not have good fixed components, and it is necessary to improve the existing deficiencies and provide an electro-hydraulic actuator that can sense temperature and fire independently to cut off. Utility Model Content

[0006] The purpose of the utility model is to provide an electro-hydraulic actuator capable of autonomous temperature sensing and fire prevention and cut-off, so as to solve the problems raised in the above-mentioned background technology.

[0007] In order to solve the above technical problems, the utility model is realized by the following technical solutions:

[0008] The utility model discloses an electro-hydraulic actuator capable of autonomous temperature sensing and fire-proof cut-off, comprising an electro-hydraulic actuator and a valve structure, wherein the electro-hydraulic actuator comprises an actuator, a motor, a support frame, a first connecting plate and a temperature sensor, wherein the upper surface of the actuator is provided with a motor, the lower surface of the actuator is provided with a support frame, one end of the actuator is provided with a temperature sensor, the lower surface of the support frame is provided with a first connecting plate, the valve structure comprises a valve pipeline and a second connecting plate, the upper surface of the valve pipeline is provided with a second connecting plate, the upper surface of the second connecting plate is provided with a first connecting plate, the outer surfaces of the first connecting plate and the second connecting plate are both provided with mounting grooves, the mounting grooves are fixed as two and symmetrically arranged, the interiors of the two mounting grooves are both hinged with connecting plates through pins, and the two A clamping plate is provided at one end of the connecting plate, a valve pipe is installed between the two clamping plates, a mounting plate is provided on the outer surface of the clamping plate, a mounting opening is opened on the outer surface of the mounting plate, a fixing component is arranged inside the mounting opening, the fixing component comprises an abutment block, a first rectangular block, a second rectangular block and a first spring, a second rectangular block is provided at one end of the first rectangular block, a cavity is opened inside the second rectangular block, an abutment block is slidably connected inside the cavity, the abutment blocks are fixed in two and symmetrically arranged, a first spring is installed between the two abutment blocks, one end of the abutment block passes through the second rectangular block and extends outward, the outer surfaces of the first rectangular block and the abutment block are abutted against the outer surface of the mounting plate, and the second rectangular block is installed inside the mounting opening.

[0009] Furthermore, a limiting groove is provided on the inner surface of the cavity, and a limiting block is provided on the outer surface of the abutting block, and the limiting block is slidably connected inside the limiting groove.

[0010] Furthermore, an outer surface of the abutment block is provided with an inclined surface.

[0011] Furthermore, a groove is formed on the outer surface of the valve pipe, and a support component is arranged inside the groove.

[0012] Furthermore, the support assembly includes a support ring, a guide rod and a second spring, the guide rod is installed inside the groove, the support ring is slidably connected to the outer surface of the guide rod, the second spring is sleeved on the outer surface of the guide rod, one end of the second spring is installed on the inner bottom of the groove, and the other end of the second spring is installed on the lower surface of the support ring.

[0013] Furthermore, the outer surface of the abutment block is provided with anti-slip stripes.

[0014] The utility model has the following beneficial effects:

[0015] (1) The utility model replaces the fixing method of bolts and nuts by the coordinated use of the abutment block, the first rectangular block, the second rectangular block and the first spring, thereby avoiding the wear of the nuts or bolts after repeated use, which would cause the loosening of the connection between the two clamping plates, and achieving a better fixing effect.

[0016] (2) The utility model can provide a good supporting effect on the connecting plate and the clamping plate through the coordinated use of the support ring, the guide rod and the second spring.

[0017] Of course, any product implementing the present invention does not necessarily need to achieve all of the advantages described above at the same time. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the technical solutions of the embodiments of the utility model, the drawings required for describing the embodiments are briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0019] Figure 1 This is a schematic diagram of the structure of the clamping plate of the utility model when clamping;

[0020] Figure 2 For this utility model Figure 1 A schematic diagram of the structure enlargement in the middle;

[0021] Figure 3 This is a schematic diagram of the structure of the clamping plate of the utility model when it is unfolded;

[0022] Figure 4 For this utility model Figure 3 A magnified schematic diagram of the structure at B in the middle;

[0023] Figure 5 This is a cross-sectional view of the structure of the fixed component of the utility model;

[0024] In the accompanying drawings, the components represented by the reference numerals are listed as follows:

[0025] In the figure: 1. electro-hydraulic actuator; 101. actuator; 102. motor; 103. support frame; 104. first connecting plate; 105. temperature sensor; 2. valve structure; 201. valve pipeline; 202. second connecting plate; 3. connecting plate; 301. clamping plate; 302. mounting plate; 4. fixing assembly; 401. abutment block; 40101. limit block; 402. first rectangular block; 403. second rectangular block; 40301. cavity; 404. first spring; 5. support assembly; 501. support ring; 502. guide rod; 503. second spring. DETAILED DESCRIPTION

[0026] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0027] See also Figure 1 - Figure 5 As shown, the utility model is an electro-hydraulic actuator capable of autonomous temperature sensing and fire-proof cut-off, comprising an electro-hydraulic actuator 1 and a valve structure 2, wherein the electro-hydraulic actuator 1 comprises an actuator 101, a motor 102, a support frame 103, a first connecting plate 104 and a temperature sensor 105, wherein the upper surface of the actuator 101 is provided with a motor 102, the lower surface of the actuator 101 is provided with a support frame 103, one end of the actuator 101 is provided with a temperature sensor 105, the lower surface of the support frame 103 is provided with a first connecting plate 104, the valve structure 2 comprises a valve pipeline 201 and a second connecting plate 202, the upper surface of the valve pipeline 201 is provided with a second connecting plate 202, the upper surface of the second connecting plate 202 is provided with a first connecting plate 104, the outer surfaces of the first connecting plate 104 and the second connecting plate 202 are both provided with mounting grooves, the mounting grooves are fixed as two and symmetrically arranged, the interiors of the two mounting grooves are both hinged with connecting plates 3 through pins, and the two connecting plates 3 are A clamping plate 301 is provided at one end, a valve pipe 201 is installed between the two clamping plates 301, a mounting plate 302 is provided on the outer surface of the clamping plate 301, a mounting opening is opened on the outer surface of the mounting plate 302, a fixing component 4 is arranged inside the mounting opening, the fixing component 4 comprises an abutting block 401, a first rectangular block 402, a second rectangular block 403 and a first spring 404, a second rectangular block 403 is provided at one end of the first rectangular block 402, a cavity 40301 is opened inside the second rectangular block 403, the abutting block 401 is slidably connected inside the cavity 40301, the abutting blocks 401 are fixed in two and symmetrically arranged, a first spring 404 is installed between the two abutting blocks 401, one end of the abutting block 401 passes through the second rectangular block 403 and extends outward, the outer surfaces of the first rectangular block 402 and the abutting block 401 are both abutted against the outer surface of the mounting plate 302, and the second rectangular block 403 is installed inside the mounting opening.

[0028] The inner surface of the cavity 40301 is provided with a limiting groove, and the outer surface of the abutment block 401 is provided with a limiting block 40101, and the limiting block 40101 is slidably connected to the inside of the limiting groove.

[0029] The outer surface of the abutment block 401 is provided with an inclined surface.

[0030] A groove is formed on the outer surface of the valve pipe 201, and a support assembly 5 is arranged inside the groove.

[0031] The support assembly 5 includes a support ring 501, a guide rod 502 and a second spring 503. The guide rod 502 is installed inside the groove, the support ring 501 is slidably connected to the outer surface of the guide rod 502, the second spring 503 is sleeved on the outer surface of the guide rod 502, one end of the second spring 503 is installed on the inner bottom of the groove, and the other end of the second spring 503 is installed on the lower surface of the support ring 501.

[0032] The outer surface of the abutment block 401 is provided with anti-slip stripes.

[0033] When in use, first align the first connecting disk 104 with the second connecting disk 202 and then fix them with bolts, then pull the support ring 501 downward so that the support ring 501 moves downward inside the groove, and at the same time the second spring 503 gradually shrinks, and then rotate the connecting plate 3 so that the connecting plate 3 moves axially with one end of the valve pipe 201 close to the pin rod as the center, so that the clamping plate 301 is turned to the outside of the valve pipe 201, so that the two clamping plates 301 fit each other, and then release the hand that pulls the support ring 501, so that the second spring 503 recovers its elasticity and pushes the support ring 501 to move upward, so that the support ring 501 abuts the connecting plate 3 and the clamping plate 301, and then pick up the first rectangular block 402, place the second rectangular block 403 on one side of the installation port, and then push the first rectangular block 402 so that the abutment block 401 is at the entrance of the installation port. The two abutment blocks 401 are squeezed, and the two abutment blocks 401 move toward the inside of the cavity 40301, and the first spring 404 gradually contracts. When the outer surface of the abutment block 401 is flush with the outer surface of the second rectangular block 403, the second rectangular block 403 can slide in the installation opening, and then continue to push the first rectangular block 402. After the second rectangular block 403 is installed in the installation opening, one end of the second rectangular block 403 extends out of the installation opening, so that the first spring 404 restores its elasticity and pushes the abutment block 401 to move outward, so that the outer surface of the abutment block 401 abuts against the outer surface of the mounting plate 302. The coordinated use of the abutment block 401, the first rectangular block 402, the second rectangular block 403 and the first spring 404 replaces the fixing method of the bolt and the nut, thereby avoiding the wear of the nut or the bolt after repeated use, which causes the loosening of the connection between the two clamping plates 301, and achieving a better fixing effect.

[0034] The preferred embodiments of the utility model disclosed above are only used to help explain the utility model. The preferred embodiments do not describe all the details in detail, nor do they limit the utility model to the specific implementation methods described. Obviously, many modifications and changes can be made according to the content of this specification. This specification selects and specifically describes these embodiments in order to better explain the principles and practical applications of the utility model, so that technicians in the relevant technical field can well understand and use the utility model. The utility model is limited only by the claims and their full scope and equivalents.

Claims

1. An electro-hydraulic actuator capable of autonomous temperature sensing and fire-prevention cut-off, comprising an electro-hydraulic actuator (1) and a valve structure (2), characterized in that: The electro-hydraulic actuator (1) comprises an actuator (101), a motor (102), a support frame (103), a first connection plate (104) and a temperature sensor (105); the motor (102) is provided on the upper surface of the actuator (101); the support frame (103) is provided on the lower surface of the actuator (101); the temperature sensor (105) is provided at one end of the actuator (101); and the first connection plate (104) is provided on the lower surface of the support frame (103); The valve structure (2) comprises a valve pipeline (201) and a second connection disk (202); the second connection disk (202) is provided on the upper surface of the valve pipeline (201); the first connection disk (104) is provided on the upper surface of the second connection disk (202); the first connection disk (104) and the second connection disk (202) are provided with mounting grooves on their outer surfaces; the mounting grooves are fixed in two and symmetrically arranged; the interiors of the two mounting grooves are hinged with connecting plates (3) via pins; one end of the two connecting plates (3) is provided with a clamping plate (301); the valve pipeline (201) is installed between the two clamping plates (301); the outer surface of the clamping plate (301) is provided with a mounting plate (302); the outer surface of the mounting plate (302) is provided with a mounting opening; the interior of the mounting opening is provided with a fixing component (4); The fixing assembly (4) comprises an abutment block (401), a first rectangular block (402), a second rectangular block (403) and a first spring (404); the second rectangular block (403) is provided at one end of the first rectangular block (402); a cavity (40301) is provided inside the second rectangular block (403); the cavity (40301) is slidably connected with the abutment block (401); the abutment blocks (401) are fixed in two and symmetrically arranged; a first spring (404) is installed between the two abutment blocks (401); one end of the abutment block (401) passes through the second rectangular block (403) and is extended outward; the outer surfaces of the first rectangular block (402) and the abutment block (401) are both in abutment with the outer surface of the mounting plate (302); and the second rectangular block (403) is installed inside the mounting opening.

2. The electro-hydraulic actuator capable of autonomous temperature sensing and fire prevention and cut-off according to claim 1, characterized in that: The inner surface of the cavity (40301) is provided with a limiting groove, and the outer surface of the abutment block (401) is provided with a limiting block (40101), and the limiting block (40101) is slidably connected inside the limiting groove.

3. The electro-hydraulic actuator capable of autonomous temperature sensing and fire prevention and cut-off according to claim 1, characterized in that: The outer surface of the abutment block (401) is provided with an inclined surface.

4. The electro-hydraulic actuator capable of autonomous temperature sensing and fire prevention and cut-off according to claim 1, characterized in that: The outer surface of the valve pipe (201) is provided with a groove, and a support assembly (5) is arranged inside the groove.

5. The electro-hydraulic actuator capable of autonomous temperature sensing and fire prevention and cut-off according to claim 4, characterized in that: The support assembly (5) comprises a support ring (501), a guide rod (502) and a second spring (503); the guide rod (502) is mounted inside the groove; the support ring (501) is slidably connected to the outer surface of the guide rod (502); the second spring (503) is sleeved on the outer surface of the guide rod (502); one end of the second spring (503) is mounted on the inner bottom of the groove; and the other end of the second spring (503) is mounted on the lower surface of the support ring (501).

6. The electro-hydraulic actuator capable of autonomous temperature sensing and fire-prevention cut-off according to claim 1, characterized in that: The outer surface of the abutment block (401) is provided with anti-slip stripes.

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