Protective structure of oxygen pressure reducer

Abstract

The utility model relates to a protection structure of an oxygen pressure reducer, which belongs to the field of oxygen pressure reducers and comprises a shell, a protection mechanism is arranged in the shell, a shell is hinged to the front side of the shell through a hinge shaft, a connecting block attached to the right side of the shell is fixed on the right side of the shell, and an opening and closing mechanism is arranged on the right side of the shell. An oxygen pressure reducer body is movably attached to the back wall of an inner cavity of the shell, and a high-pressure oxygen meter and a low-pressure oxygen meter are fixed to the outer side of the oxygen pressure reducer body. According to the oxygen pressure reducer protection structure, the threaded rod starts to rotate by rotating the handle, the two movable plates are slidably connected to the outer sides of the two sliding rods, so that the two movable plates move relatively, the top and the bottom of the oxygen pressure reducer body are tightly attached through the two arc-shaped plates, the oxygen pressure reducer body is limited, and the oxygen pressure reducer body is prevented from being damaged. And the oxygen pressure reducer main body, the low-pressure oxygen meter and the high-pressure oxygen meter are prevented from being damaged due to violent collision with foreign objects.

Description

Technical Field

[0001] The utility model relates to the technical field of oxygen pressure reducers, in particular to a protective structure of an oxygen pressure reducer. Background Art

[0002] An oxygen pressure reducer is generally a pressure reducing device for bottled gas. When the inlet pressure and outlet flow rate change, the outlet pressure is guaranteed to remain stable. An increase in the low-pressure gauge reading may indicate potential danger and hidden dangers. Since high pressure is not required during welding and gas cutting, and the pressure stored in the cylinder is very high, there is a large gap between the two. In order to adjust the high-pressure gas in the cylinder to the low pressure during operation and keep the low pressure stable during use, a gas pressure reducer is required.

[0003] For example, Chinese patent CN 220102261 U discloses an oxygen pressure reducer with a protection mechanism, including an oxygen pressure reducer body, an outer wall of the oxygen pressure reducer body is provided with a low-pressure oxygen meter and a high-pressure oxygen meter, a protective shell is provided outside the low-pressure oxygen meter and the high-pressure oxygen meter, a fixed block 1 is fixedly connected to the front of the protective shell, a fixed block 2 is fixedly installed on the front of the low-pressure oxygen meter and the high-pressure oxygen meter, and the fixed block 1 is located at the top of the fixed block 2, a groove is provided on the top of the fixed block 2, and an insert block is fixedly connected to the bottom of the fixed block 1.

[0004] The above-mentioned oxygen pressure reducer with a protective mechanism still has certain shortcomings. It achieves the purpose of protection by setting a protective shell to cover the low-pressure oxygen meter and the high-pressure oxygen meter, but the main body of the oxygen pressure reducer is still exposed to the outside. When the main body of the oxygen pressure reducer is hit, it may also be damaged. Therefore, the present application proposes an oxygen pressure reducer protective structure to solve the above problems. Utility Model Content

[0005] In view of the deficiencies in the prior art, the utility model provides an oxygen pressure reducer protection structure, which has the advantage of effectively protecting the oxygen pressure reducer and solves the problem that the main body of the oxygen pressure reducer is still exposed and may be damaged when the main body of the oxygen pressure reducer is hit.

[0006] To achieve the above object, the utility model provides the following technical solutions: an oxygen pressure reducer protection structure, comprising a shell, a protection mechanism is arranged inside the shell, a shell is hingedly connected to the front of the shell through a hinge shaft, a connection block affixed to the right side of the shell is fixed to the right side of the shell, an opening and closing mechanism is arranged on the right side of the shell, an oxygen pressure reducer body is movably affixed to the back wall of the inner cavity of the shell, and a high-pressure oxygen meter and a low-pressure oxygen meter are fixed to the outside of the oxygen pressure reducer body;

[0007] The protection mechanism comprises a threaded rod rotatably connected between the top wall and the bottom wall of the inner cavity of the shell through a bearing, the outer side of the threaded rod is threadedly connected to two movable plates, sleeves are fixed to the opposite sides of the two movable plates, first springs are fixed to the opposite side walls of the inner cavities of the two sleeves, dampers are fixed to the opposite side walls of the inner cavities of the two sleeves, slide plates are fixed to the opposite sides of the dampers on the upper and lower sides, connecting columns are fixed to the opposite sides of the two slide plates, and arc plates are fixed to the opposite sides of the two connecting columns;

[0008] The opening and closing mechanism includes a U-shaped connecting seat fixed on the right side of the shell, a second spring is fixed to the bottom wall of the inner cavity of the connecting seat, a movable rod is mounted inside the second spring, and two limit blocks that are movably fitted on the top of the second spring are fixed on the outer side of the movable rod.

[0009] Furthermore, the protection mechanism also includes a connecting rod fixed to the top end of the threaded rod, and a handle is fixed to the top end of the connecting rod.

[0010] Furthermore, the oxygen pressure reducer body is located between the two arc-shaped plates, and the two sleeves are provided with connecting holes slidably connected to the connecting column on opposite sides.

[0011] Furthermore, the first springs on the upper and lower sides are respectively sleeved on the outer sides of the upper and lower dampers, and the first springs on the upper and lower sides are respectively fixed on the opposite sides of the two slide plates.

[0012] Furthermore, two sliding rods are fixed between the top wall and the bottom wall of the inner cavity of the shell, and the two movable plates are slidably connected to the outer sides of the two sliding rods.

[0013] Furthermore, two positioning rods are fixed to the top wall and the bottom wall of the two sleeve inner cavities, and the two slide plates are slidably connected to the outer sides of the positioning rods on the upper and lower sides respectively.

[0014] Furthermore, the two limit blocks are movably fitted on the top wall of the inner cavity of the connecting seat, the top end of the movable rod passes through the upper and lower sides of the connecting seat, and the lower surface of the connecting block is provided with a groove that matches the clearance of the movable rod.

[0015] Compared with the prior art, the technical solution of this application has the following beneficial effects:

[0016] 1. The oxygen pressure reducer protection structure rotates the handle to make the threaded rod start to rotate. Since the two movable plates are slidably connected to the outside of the two sliding rods, the two movable plates move relatively. The top and bottom of the oxygen pressure reducer body are tightly fitted by two arc plates to limit the oxygen pressure reducer body, thereby preventing the oxygen pressure reducer body, low-pressure oxygen meter and high-pressure oxygen meter from being damaged due to severe collision with foreign objects.

[0017] 2. The protective structure of the oxygen pressure reducer pulls the movable rod downward to compress the second spring, so that the movable rod is separated from the inside of the slot, so that after the shell is opened, the oxygen pressure reducer body can be placed into the back wall of the shell cavity to protect the oxygen pressure reducer body. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a schematic diagram of the structure of the utility model;

[0019] Figure 2 This is the right side view of the structure of the utility model;

[0020] Figure 3 This is a schematic diagram of the protection mechanism of the utility model;

[0021] Figure 4 It is a three-dimensional diagram of the opening and closing mechanism of the utility model.

[0022] In the figure: 1 shell, 2 protection mechanism, 201 threaded rod, 202 movable plate, 203 sleeve, 204 first spring, 205 damper, 206 slide plate, 207 connecting column, 208 arc plate, 3 shell, 4 opening and closing mechanism, 401 connecting seat, 402 second spring, 403 limit block, 404 movable rod, 5 connecting block, 6 oxygen pressure reducer body, 7 low-pressure oxygen meter, 8 high-pressure oxygen meter. DETAILED DESCRIPTION

[0023] 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.

[0024] See also Figure 1-2 An oxygen pressure reducer protection structure in this embodiment includes a shell 1, a protection mechanism 2 is arranged inside the shell 1, a shell 3 is hingedly connected to the front of the shell 1 through a hinge shaft, a connecting block 5 that is in contact with the right side of the shell 1 is fixed to the right side of the shell 3, an opening and closing mechanism 4 is arranged on the right side of the shell 1, an oxygen pressure reducer body 6 is movably in contact with the back wall of the inner cavity of the shell 1, and a high-pressure oxygen meter 8 and a low-pressure oxygen meter 7 are fixed to the outside of the oxygen pressure reducer body 6.

[0025] See also Figure 3In order to limit the position of the oxygen pressure reducer body 6, the protection mechanism 2 in this embodiment includes a threaded rod 201 rotatably connected between the top wall and the bottom wall of the inner cavity of the shell 1 through a bearing, and the outer side of the threaded rod 201 is threadedly connected to two movable plates 202, and sleeves 203 are fixed to the opposite sides of the two movable plates 202, and the first springs 204 are fixed to the opposite side walls of the inner cavities of the two sleeves 203, and dampers 205 are fixed to the opposite side walls of the inner cavities of the two sleeves 203, and slide plates 206 are fixed to the opposite sides of the dampers 205 on the upper and lower sides, and connecting columns 207 are fixed to the opposite sides of the two slide plates 206, and arc plates 208 are fixed to the opposite sides of the two connecting columns 207.

[0026] In this example, the protection mechanism 2 also includes a connecting rod fixed to the top of the threaded rod 201, and a handle is fixed to the top of the connecting rod. The oxygen pressure reducer body 6 is located between the two arc-shaped plates 208. The two sleeves 203 have connecting holes slidably connected to the connecting column 207 on opposite sides. The upper and lower first springs 204 are respectively sleeved on the outer sides of the upper and lower dampers 205. The upper and lower first springs 204 are respectively fixed on the opposite sides of the two slide plates 206. Two sliding rods are fixed between the top and bottom walls of the inner cavity of the shell 1. The two movable plates 202 are slidably connected to the outer sides of the two sliding rods. By rotating the handle, the threaded rod 201 starts to rotate. Since the two movable plates 202 are slidably connected It is connected to the outside of the two sliding rods, so the two movable plates 202 move relatively, and the two arc-shaped plates 208 are used to tightly fit the top and bottom of the oxygen reducer main body 6 to limit the oxygen reducer main body 6. The top wall and the bottom wall of the inner cavity of the two sleeves 203 are fixed with two positioning rods, and the two slide plates 206 are slidably connected to the outside of the positioning rods on the upper and lower sides respectively. When the oxygen reducer main body 6 is limited, the outer shell 3 and the shell 1 are closed again. When the shell 1 is hit, the first springs 204 and the damper 205 on the upper and lower sides can be used to protect the oxygen reducer main body 6 to prevent the oxygen reducer main body 6, the low-pressure oxygen meter 7 and the high-pressure oxygen meter 8 from being damaged due to severe collision with foreign objects.

[0027] It should be noted that by rotating the handle, the threaded rod 201 starts to rotate. Since the two movable plates 202 are slidably connected to the outside of the two sliding rods, the two movable plates 202 move relatively. The top and bottom of the oxygen reducer body 6 are tightly fitted by using two arc plates 208 to limit the oxygen reducer body 6, thereby preventing the oxygen reducer body 6, the low-pressure oxygen meter 7 and the high-pressure oxygen meter 8 from being damaged due to severe collision with foreign objects.

[0028] See also Figure 4In order to protect the oxygen pressure reducer body 6, the opening and closing mechanism 4 in this embodiment includes a U-shaped connecting seat 401 fixed to the right side of the shell 1, a second spring 402 is fixed to the bottom wall of the inner cavity of the connecting seat 401, a movable rod 404 is sleeved inside the second spring 402, and two limit blocks 403 that are movably fitted on the top of the second spring 402 are fixed on the outer side of the movable rod 404.

[0029] In this example, the two limit blocks 403 are movably fitted on the top wall of the inner cavity of the connecting seat 401, and the top of the movable rod 404 passes through the upper and lower sides of the connecting seat 401. The movable rod 404 is pulled downward to compress the second spring 402, so that the movable rod 404 is separated from the inside of the slot. After the outer shell 3 is opened, the oxygen pressure reducer body 6 is placed into the back wall of the inner cavity of the shell 1. The lower surface of the connecting block 5 is provided with a slot that is gap-matched with the movable rod 404. When it is moved to the area where the oxygen pressure reducer body 6 needs to be installed and used, the oxygen pressure reducer body 6 can be taken out again for installation and use.

[0030] It should be noted that by pulling the movable rod 404 downward, the second spring 402 is compressed, and the movable rod 404 is separated from the inside of the slot, so that after the shell 3 is opened, the oxygen pressure reducer body 6 can be placed into the back wall of the inner cavity of the shell 1 to protect the oxygen pressure reducer body 6.

[0031] It is understandable that in the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installation", "connection" and "connection" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood through specific circumstances. At the same time, the parts not described in detail in the present invention are all well-known technologies of those skilled in the art.

[0032] The working principle of the above embodiment is:

[0033] (1) When the oxygen reducer needs to be protected, the movable rod 404 is pulled downward to compress the second spring 402, so that the movable rod 404 is disengaged from the inside of the slot. After the shell 3 is opened, the oxygen reducer body 6 is placed into the back wall of the inner cavity of the shell 1. Then, the handle is rotated to make the threaded rod 201 start to rotate. Since the two movable plates 202 are slidably connected to the outside of the two sliding rods, the two movable plates 202 move relative to each other, and the top and bottom of the oxygen reducer body 6 are tightly fitted by the two arc plates 208 to limit the position of the oxygen reducer body 6.

[0034] (2) After the oxygen pressure reducer body 6 has been limited, the outer shell 3 and the housing 1 are closed again. When the housing 1 is hit, the first spring 204 and the damper 205 on the upper and lower sides can protect the oxygen pressure reducer body 6 to prevent the oxygen pressure reducer body 6, the low-pressure oxygen meter 7 and the high-pressure oxygen meter 8 from being damaged due to a violent collision with foreign objects. When the oxygen pressure reducer body 6 is moved to an area where the oxygen pressure reducer body 6 needs to be installed and used, the oxygen pressure reducer body 6 can be taken out again for installation and use.

[0035] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, the elements defined by the sentence "comprise a ..." do not exclude the existence of other identical elements in the process, method, article or device including the elements.

[0036] Although the embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that many changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention.

Claims

1. An oxygen pressure reducer protective structure, comprising a housing (1), characterized in that: The housing (1) is provided with a protection mechanism (2) inside, the housing (1) is hingedly connected to an outer shell (3) on the front side via a hinge shaft, a connection block (5) fixed to the right side of the housing (3) and in contact with the right side of the housing (1), an opening and closing mechanism (4) is provided on the right side of the housing (1), an oxygen pressure reducer body (6) is movably in contact with the back wall of the inner cavity of the housing (1), and a high-pressure oxygen meter (8) and a low-pressure oxygen meter (7) are fixed to the outside of the oxygen pressure reducer body (6); The protection mechanism (2) comprises a threaded rod (201) rotatably connected between the top wall and the bottom wall of the inner cavity of the shell (1) via a bearing, the outer side of the threaded rod (201) is threadedly connected to two movable plates (202), sleeves (203) are fixed on opposite sides of the two movable plates (202), first springs (204) are fixed on opposite side walls of the inner cavities of the two sleeves (203), dampers (205) are fixed on opposite side walls of the inner cavities of the two sleeves (203), slide plates (206) are fixed on opposite sides of the dampers (205) at the upper and lower sides, connecting columns (207) are fixed on opposite sides of the two slide plates (206), and arc-shaped plates (208) are fixed on opposite sides of the two connecting columns (207); The opening and closing mechanism (4) comprises a U-shaped connecting seat (401) fixed on the right side of the shell (1); a second spring (402) is fixed to the bottom wall of the inner cavity of the connecting seat (401); a movable rod (404) is sleeved inside the second spring (402); and two limit blocks (403) that are movably fitted on the top of the second spring (402) are fixed on the outer side of the movable rod (404).

2. The oxygen pressure reducer protection structure according to claim 1, characterized in that: The protection mechanism (2) further comprises a connecting rod fixed to the top end of the threaded rod (201), and a handle is fixed to the top end of the connecting rod.

3. The oxygen pressure reducer protection structure according to claim 1, characterized in that: The oxygen pressure reducer body (6) is located between the two arc-shaped plates (208), and the two sleeves (203) are provided with connection holes on opposite sides thereof for sliding connection with the connection column (207).

4. The oxygen pressure reducer protection structure according to claim 1, characterized in that: The first springs (204) on the upper and lower sides are respectively sleeved on the outer sides of the dampers (205) on the upper and lower sides, and the first springs (204) on the upper and lower sides are respectively fixed on the opposite sides of the two slide plates (206).

5. The oxygen pressure reducer protection structure according to claim 1, characterized in that: Two sliding rods are fixed between the top wall and the bottom wall of the inner cavity of the shell (1), and the two movable plates (202) are slidably connected to the outsides of the two sliding rods.

6. The oxygen pressure reducer protection structure according to claim 1, characterized in that: Two positioning rods are fixed to the top wall and the bottom wall of the inner cavity of the two sleeves (203), and the two slide plates (206) are slidably connected to the outer sides of the positioning rods at the upper and lower sides respectively.

7. The oxygen pressure reducer protection structure according to claim 1, characterized in that: The two limit blocks (403) are movably fitted on the top wall of the inner cavity of the connecting seat (401), the top end of the movable rod (404) passes through the upper and lower sides of the connecting seat (401), and the lower surface of the connecting block (5) is provided with a slot that is clearance-matched with the movable rod (404).

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