Diaphragm type energy accumulator

Abstract

The utility model discloses a diaphragm type energy accumulator, which relates to the energy accumulator field, and comprises a container main body, the top of the container main body is provided with an air inlet channel, the outer ring of the top of the air inlet channel is in threaded connection with a protection nut, the inside of the air inlet channel is in threaded connection with a mounting sleeve, and the inside of the mounting sleeve is in threaded connection with a threaded block. And a notch is formed in the threaded block, a short rod is movably installed in the notch, the lower end of the short rod is fixedly connected with a sealing block, a second thread is arranged on the outer ring of the short rod, the outer ring of the second thread is in threaded connection with a top plate, and the top plate is connected with the threaded block assembly through a spring. The mounting sleeve is separated from the air inlet channel by twisting the mounting sleeve, and the threaded block and the top plate are separated from the mounting sleeve and the short rod by twisting the threaded block and the top plate, so that the spring can be taken down for replacement, subsequent twisting mounting is relatively convenient, and meanwhile, air filling is more convenient due to the arrangement of the air inlet channel.

Description

Technical Field

[0001] The utility model relates to the field of accumulators, in particular to a diaphragm accumulator. Background Art

[0002] Accumulators are very useful in fluid power systems. They are used to store energy and eliminate pulses. They can be used in hydraulic systems to reduce the specifications of fluid pumps by replenishing the fluid in the pump. Diaphragm accumulators are mainly composed of shells, rubber diaphragms, valve seats and other components. The shell structure is divided into two types: welded and threaded. The rubber diaphragm in the threaded accumulator is removable and replaceable, and the shell is reusable, which is convenient for later maintenance. Diaphragm accumulators have the characteristics of sensitive response, small size and light weight. They can be used as liquid-gas springs to effectively reduce system pressure shocks and pressure pulsations, while reducing system noise.

[0003] The existing Chinese patent publication number is: CN219827293U, which discloses an easily inflatable diaphragm accumulator, including a container, an inflating interface and a valve core, wherein the inflating interface is fixed on the container, an airway connected to the internal cavity of the container is arranged in the inflating interface, the valve core is slidably arranged in the airway, a sealing member is fixed at the lower end of the valve core, the shape of the sealing member is adapted to the shape of the lower outlet of the airway, and a spring is arranged on the lower side of the sealing member to drive the sealing member against the lower outlet of the airway. The utility model of the diaphragm accumulator can simplify the inflating steps and thus improve the inflating efficiency.

[0004] The above-mentioned diaphragm accumulator also has the following problems when in use: during the inflation process, the internal spring of the inflation port of the above-mentioned diaphragm accumulator ages after being used many times, resulting in reduced elasticity, and the replacement of the spring is relatively inconvenient, which may cause problems in the subsequent use of the entire accumulator.

[0005] Therefore, it is necessary to invent a diaphragm accumulator to solve the above problems. Utility Model Content

[0006] The purpose of the utility model is to provide a diaphragm accumulator to solve the problem proposed in the above-mentioned background technology that the spring inside the charging port of the diaphragm accumulator ages after being used many times during the charging process, resulting in reduced elasticity, and the replacement of the spring is relatively inconvenient, which may cause problems in the subsequent use of the entire accumulator.

[0007] In order to achieve the above-mentioned purpose, the utility model provides the following technical solutions: a diaphragm accumulator, comprising a container body, an air intake channel is arranged on the top of the container body, and a protective nut is threadedly connected to the outer ring of the top of the air intake channel, the inner thread of the air intake channel is connected to a mounting sleeve, and the inner thread of the mounting sleeve is connected to a threaded block, and a notch is opened inside the threaded block, a short rod is movably installed inside the notch, and a sealing block is fixedly connected to the lower end of the short rod, and a second thread is arranged on the outer ring of the short rod, and a top plate is threadedly connected to the outer ring of the second thread, and the top plate and the threaded block assembly are connected by a spring.

[0008] Preferably, the installation sleeve consists of a barrel, a rim and a thread one, wherein the outer ring of the barrel is provided with a thread one, the thread one is threadedly connected to the inner ring of the air inlet channel, and the top of the barrel is flush with the top of the air inlet channel, ensuring the detachable installation of the installation sleeve.

[0009] Preferably, a circular rim is fixedly connected to the top of the barrel, and the rim is in contact with the top of the air inlet passage, thereby ensuring quick installation between the mounting sleeve and the air inlet passage.

[0010] Preferably, the sealing block is located below the mounting sleeve, and the outer ring of the sealing block is mounted in close contact with the inner wall of the air inlet provided at the top of the container body, thereby ensuring the mobility of the sealing block.

[0011] Preferably, a sealing ring is installed on the top wall of the sealing block, and the sealing ring matches the sealing groove arranged inside the mounting sleeve, so that the sealing performance between the sealing block and the air inlet passage is guaranteed.

[0012] Preferably, the spring is conical, and the top of the conical spring is fixedly connected to the top plate, and the bottom of the conical spring is fixedly connected to the threaded block. The conical spring is more stable in use and less prone to bending than a conventional compression spring.

[0013] In the above technical solution, the technical effects and advantages provided by the utility model are:

[0014] 1. The utility model connects the air inlet channel with the high-pressure nitrogen source through the inflation tool and turns on the high-pressure nitrogen source. The high-pressure nitrogen enters the interior of the container body through the air inlet channel. At the same time, the downward pressure of the short rod when the gas enters drives the sealing block to move away from the air inlet connected to the air inlet channel above the container body, so that the gas enters. At the same time, when the inflation tool is removed, the spring reset drives the short rod and the sealing block to reset synchronously, so that the sealing block blocks the air inlet again, which is convenient for rapid inflation.

[0015] 2. At the same time, twist the installation sleeve to separate it from the air intake passage, twist the threaded block and the top plate to separate it from the installation sleeve and the short rod, then the spring can be removed for replacement, and the subsequent twisting installation is more convenient. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings required for use in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in the present utility model. For ordinary technicians in this field, other drawings can also be obtained based on these drawings.

[0017] Figure 1 It is a three-dimensional diagram of the overall structure of the utility model;

[0018] Figure 2 This is an exploded view of the air intake passage and the mounting sleeve of the utility model;

[0019] Figure 3 This is a three-dimensional diagram of the internal structure of the installation sleeve (partially cut away) of the utility model;

[0020] Figure 4 It is an exploded view of the internal structure of the installation sleeve (partially cut away) of the utility model;

[0021] Figure 5 It is a schematic cross-sectional plan view of the internal structure of the installation sleeve (partially cut away) of the utility model.

[0022] Description of reference numerals:

[0023] 1. Container body; 2. Air inlet channel; 3. Protective nut; 4. Mounting sleeve; 401. Cylinder body; 402. Rim; 403. Thread one; 5. Thread block; 6. Notch; 7. Short rod; 8. Sealing block; 9. Sealing ring; 10. Sealing groove; 11. Top plate; 12. Thread two; 13. Spring. DETAILED DESCRIPTION

[0024] In order to enable those skilled in the art to better understand the technical solution of the present invention, the present invention will be further described in detail below in conjunction with the accompanying drawings.

[0025] The utility model provides Figure 1-5A diaphragm accumulator shown includes a container body 1, the top of the container body 1 is provided with an air inlet channel 2 for easy filling of gas, and the outer circle of the top of the air inlet channel 2 is threadedly connected with a protective nut 3, the inner thread of the air inlet channel 2 is connected with a mounting sleeve 4, and the inner thread of the mounting sleeve 4 is connected with a thread block 5, and a notch 6 is opened inside the thread block 5, a short rod 7 is movably installed inside the notch 6, and a sealing block 8 is fixedly connected to the lower end of the short rod 7, and the outer circle of the short rod 7 is provided with a thread 12, the outer circle of the thread 12 is threadedly connected with a top plate 11, and the top plate 11 and the thread block 5 assembly are connected by a spring 13.

[0026] The mounting sleeve 4 consists of a barrel 401, a rim 402 and a thread 403, which are installed in an integrated manner, wherein the outer ring of the barrel 401 is provided with a thread 403, and the thread 403 is threadedly connected to the inner ring of the air inlet passage 2, and the top of the barrel 401 is flush with the top of the air inlet passage 2, thereby ensuring the detachable installation of the mounting sleeve 4 to facilitate the quick replacement of the spring 13.

[0027] A circular rim 402 is fixedly connected to the top of the barrel 401 , and the rim 402 is in contact with the top of the air inlet passage 2 , thereby ensuring quick installation between the mounting sleeve 4 and the air inlet passage 2 .

[0028] The sealing block 8 is located below the mounting sleeve 4, and the outer ring of the sealing block 8 is mounted in close contact with the inner wall of the air inlet arranged at the top of the container body 1, ensuring the mobility of the sealing block 8, so that the sealing block 8 can be forced to move downward with the synchronous short rod 7 to open the air inlet.

[0029] A sealing ring 9 is installed on the top wall of the sealing block 8, and the sealing ring 9 matches the sealing groove 10 set inside the mounting sleeve 4, so that the sealing between the sealing block 8 and the air inlet channel 2 is guaranteed, so as to facilitate the subsequent normal use of the entire container body 1.

[0030] The spring 13 is conical, and the top of the conical spring 13 is fixedly connected to the top plate 11, and the bottom of the conical spring 13 is fixedly connected to the threaded block 5. The conical spring 13 is more stable and less prone to bending than a conventional compression spring, so as to extend the service life of the spring 13.

[0031] Working principle: When using a diaphragm accumulator, first connect the air inlet channel 2 with the high-pressure nitrogen source through the charging tool and turn on the high-pressure nitrogen source. The high-pressure nitrogen enters the interior of the container body 1 through the air inlet channel 2. At the same time, the gas enters and pushes the short rod 7 downward, thereby synchronously driving the movement of the sealing block 8 fixedly connected to the lower end of the short rod 7, driving the sealing block 8 to move away from the air inlet connected to the air inlet channel 2 above the container body 1, so that the gas enters. At the same time, the short rod 7 is pressed down and moves downward, and the conical spring 13 is compressed. After the subsequent gas filling is completed, the charging tool is removed. At this time, the short rod 7 is no longer subjected to external pressure, and the conical spring 13 loses its force and resets to support the top plate 11 and moves upward. The short rod 7 threadedly connected to the top plate 11 moves upward synchronously, driving the sealing block 8 to reset upward and re-engage at the air inlet on the top of the container body 1 to ensure the sealing of the container body 1.

[0032] At the same time, when the conical spring 13 has been used for a long time and its elastic potential energy is weakened and needs to be replaced, the top edge 402 of the installation sleeve 4 is twisted to separate it from the air intake passage 2, and then the threaded block 5 is twisted through the notch 6 to separate the threaded block 5 from the installation sleeve 4, and the top plate 11 is twisted to separate it from the short rod 7. In this way, it is convenient to disassemble the top plate 11, the spring 13 and the threaded block 5, and then install a new top plate 11, the spring 13 and the threaded block 5 synchronously. At the same time, the installation adopts threaded connection, which makes the installation process more convenient.

[0033] The above only describes some exemplary embodiments of the present invention by way of illustration. It is undoubted that those skilled in the art can modify the described embodiments in various ways without departing from the spirit and scope of the present invention. Therefore, the above drawings and descriptions are illustrative in nature and should not be construed as limiting the scope of protection of the claims of the present invention.

Claims

1. A diaphragm accumulator, comprising a container body (1), characterized in that: An air inlet channel (2) is arranged at the top of the container body (1), and the outer ring of the top of the air inlet channel (2) is threadedly connected to a protective nut (3), the inner thread of the air inlet channel (2) is threadedly connected to a mounting sleeve (4), and the inner thread of the mounting sleeve (4) is threadedly connected to a thread block (5), and a notch (6) is opened inside the thread block (5), a short rod (7) is movably installed inside the notch (6), and a sealing block (8) is fixedly connected to the lower end of the short rod (7), and a second thread (12) is arranged on the outer ring of the short rod (7), and the outer ring of the second thread (12) is threadedly connected to a top plate (11), and the top plate (11) and the thread block (5) assembly are connected via a spring (13).

2. A diaphragm accumulator according to claim 1, characterized in that: The installation sleeve (4) is composed of a barrel (401), a rim (402) and a thread (403), wherein the outer ring of the barrel (401) is provided with a thread (403), the thread (403) is threadedly connected to the inner ring of the air inlet channel (2), and the top of the barrel (401) is flush with the top of the air inlet channel (2).

3. A diaphragm accumulator according to claim 2, characterized in that: A circular rim (402) is fixedly connected to the top of the barrel (401), and the rim (402) is in contact with the top of the air inlet channel (2).

4. A diaphragm accumulator according to claim 1, characterized in that: The sealing block (8) is located below the installation sleeve (4), and the outer ring of the sealing block (8) is installed in contact with the inner wall of the air inlet arranged at the top of the container body (1).

5. A diaphragm accumulator according to claim 3, characterized in that: A sealing ring (9) is installed on the top wall of the sealing block (8), and the sealing ring (9) matches a sealing groove (10) arranged inside the installation sleeve (4).

6. A diaphragm accumulator according to claim 1, characterized in that: The spring (13) is conical, and the top of the conical spring (13) is fixedly connected to the top plate (11), and the bottom of the conical spring (13) is fixedly connected to the threaded block (5).

Images