Protective structure for oil-filled explosion-proof high-pressure pressure gauge

Abstract

The utility model discloses a protection structure for an oil-filled explosion-proof high-pressure pressure gauge, the left and right sides of the pressure gauge are respectively provided with a protection shell, the protection shells are connected to the surfaces of the left and right sides of the pressure gauge in a sleeving manner, and the bottom of the pressure gauge is fixedly connected with a connecting rod. The pressure gauge, the protective shell, the connecting rod, the clamping device, the gear, the rack, the sliding groove, the connecting plate, a rotating rod, a limiting block, a cavity, a spring, a push plate, a stop lever, a supporting rod, a pressure spring, a top cover and a limiting rod are used in cooperation, and the problems that existing protective equipment is prone to loosening when encountering vibration or impact due to the fact that an effective locking mechanism is lacked, and the service life of the protective equipment is affected are solved. In the prior art, existing equipment does not have good buffering and damping performance, which means that an internal pressure gauge may be directly influenced when facing external impact, and the problem that the measurement precision is reduced is solved.

Description

TECHNICAL FIELD

[0001] The utility model belongs to pressure gauge protection technical field especially relates to a protection structure for oil-filled explosion-proof high pressure pressure gauge. BACKGROUND

[0002] The oil-filled explosion-proof high pressure pressure gauge is a pressure measuring instrument designed for high pressure environments, which is filled with a specific liquid to reduce the shaking of the pointer and ensure the stability and accuracy of the reading. At the same time, the pressure gauge adopts an explosion-proof design, which can be safely used in hazardous environments with explosive mixtures, preventing internal electrical faults from causing external explosions, and is widely used in chemical, petroleum, natural gas and other industries to ensure the safety and reliability of operation. This pressure gauge not only can resist the influence of harsh environment, but also can prevent external pollutants from entering through its solid structure and professional sealing technology, ensuring long-term stable operation under various severe conditions.

[0003] The existing technology has the problem that the existing protection equipment often lacks an effective locking mechanism and is prone to looseness when subjected to vibration or impact, thereby failing to ensure the stability of long-term use, and the existing equipment also lacks good shock absorption performance, which means that the internal pressure gauge may be directly affected when facing external impact, thereby causing the measurement accuracy to decrease. UTILITY MODEL CONTENTS

[0004] In view of the problems existing in the prior art, the utility model provides a protection structure for oil-filled explosion-proof high pressure pressure gauge, which has the advantages of efficient protection and shock absorption, and solves the problem that the existing protection equipment often lacks an effective locking mechanism and is prone to looseness when subjected to vibration or impact, thereby failing to ensure the stability of long-term use, and the existing equipment also lacks good shock absorption performance, which means that the internal pressure gauge may be directly affected when facing external impact, thereby causing the measurement accuracy to decrease.

[0005] The utility model is implemented as follows: a protection structure for oil-filled explosion-proof high pressure pressure gauge, the pressure gauge is provided with a protection shell on the left and right sides, the protection shell is connected to the left and right surfaces of the pressure gauge by sleeving, a connecting rod is fixedly connected to the bottom of the pressure gauge, a thread is formed on the surface of the connecting rod, and a clamping device is fixedly connected to the rear side of the protection shell.

[0006] As the utility model is preferred, the clamping device comprises a gear and a rack, the rear side of the protective shell is provided with a rack, the bottom of the left side protective shell and the top of the right side protective shell are fixedly connected with racks, gears are arranged between the racks, the racks are connected to the gears through meshing, the clamping device is arranged, the adaptability of the protective shell under different environmental conditions can be improved through the cooperation of the gear and the rack, the reliability and precision of the pressure gauge under various working conditions are ensured, and finally the overall service life and safety of the equipment are improved.

[0007] As the utility model is preferred, the top side of the rack and the bottom side of the rack are both provided with a sliding groove, the rear side of the protective shell is provided with a connecting plate, the front side of the connecting plate is connected to the inside of the sliding groove through sleeving, the rear end of the gear is connected to the front side of the connecting plate through a bearing, and the rear end of the gear penetrates and extends out of the rear side of the connecting plate, the sliding groove and the connecting plate are arranged, the protective shell is not prone to loosening or misplacement during use, the internal pressure gauge is better protected from the influence of the external environment.

[0008] As the utility model is preferred, the rear end of the gear is fixedly connected with a rotating rod, the rear side of the left side protective shell is fixedly connected with a limiting block, a cavity is formed in the limiting block, a spring is fixedly connected to the left side of the cavity, a push plate is fixedly connected to the other end of the spring, a blocking rod is fixedly connected to the right side of the push plate, the right end of the blocking rod penetrates and extends out of the right side of the limiting block, and the positions of the blocking rod and the rotating rod correspond to each other, the blocking rod and the spring are arranged, the rotating rod can be quickly locked through simple mechanical action, and the operation convenience of the device is enhanced.

[0009] As the utility model is preferred, a plurality of support rods are fixedly connected to the left side of the cavity, the right ends of the support rods are fixedly connected to the right side of the cavity, the support rods are provided in two, the push plate is connected to the surface of the support rod through sleeving, and the rear side of the push plate penetrates and extends out of the rear side of the limiting block, the support rods are arranged, the push plate can stably move along a straight line under the action of the spring, the inclination or jamming of the push plate during movement is effectively prevented, and the blocking rod can accurately perform locking or unlocking action when the gear rotates.

[0010] As the utility model is preferred, a plurality of compression springs are fixedly connected to the outer surface of the protective shell, the compression springs are provided in six, and are equidistantly distributed on the surface of the protective shell, the other ends of the compression springs are all fixedly connected with a top cover, the top cover is provided in two, and one top cover is shared by every three compression springs, and the top cover and the compression spring are used in cooperation, the compression spring is arranged, the top cover can move up and down along with the compression or expansion of the compression spring, and therefore the top cover plays a buffering role when the pressure gauge is subjected to external impact or vibration.

[0011] As a preferred embodiment of this utility model, both the left side of the left protective shell and the right side of the right protective shell are fixedly connected to limit rods. The other end of each limit rod penetrates and extends out of the outer surface of the top cover. The shape of the outer end of each limit rod is larger than the shape of the end of the limit rod near the pressure gauge. By setting the limit rods, the position of the top cover can be limited, thereby preventing the top cover from deviating during use and ensuring that its shock absorption effect is not diminished.

[0012] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0013] 1. This utility model solves the problem that existing protective equipment often lacks an effective locking mechanism and is prone to loosening when encountering vibration or impact, thus failing to guarantee long-term stability. At the same time, existing equipment also lacks good buffering and shock absorption performance, which means that the internal pressure gauge may be directly affected when facing external impact, resulting in a decrease in measurement accuracy.

[0014] 2. By setting a limiting rod, this utility model can limit the position of the top cover, thereby preventing the top cover from deviating during use and ensuring that its shock absorption effect will not be reduced. Attached Figure Description

[0015] Figure 1 This is a three-dimensional structural diagram of the protective device from a first-view perspective, provided by an embodiment of the present utility model;

[0016] Figure 2 This is a three-dimensional structural diagram of the protective device provided in the second perspective of this utility model embodiment;

[0017] Figure 3 This is a partial perspective sectional view of the protective device provided in this embodiment of the utility model;

[0018] Figure 4 This is a partial three-dimensional sectional view of the limiting block provided in this embodiment of the utility model.

[0019] In the diagram: 1. Pressure gauge; 2. Protective shell; 3. Connecting rod; 4. Clamping device; 401. Gear; 402. Rack; 5. Slide groove; 6. Connecting plate; 7. Rotating rod; 8. Limiting block; 9. Cavity; 10. Spring; 11. Push plate; 12. Stop bar; 13. Support rod; 14. Compression spring; 15. Top cover; 16. Limiting rod. Detailed Implementation

[0020] To further understand the invention content, features and effects of this utility model, the following embodiments are provided, and detailed descriptions are given in conjunction with the accompanying drawings.

[0021] The utility model discloses a structure will be described in detail below in connection with the drawings.

[0022] As Figures 1 to 4 The utility model discloses a kind of protective structures for oil-filled explosion-proof high-pressure pressure gauge, protective shell 2 is provided at the left and right sides of pressure gauge 1, protective shell 2 is connected to the surface of the left and right sides of pressure gauge 1 by sleeving, connecting rod 3 is fixedly connected at the bottom of pressure gauge 1, screw thread is opened on the surface of connecting rod 3, clamping device 4 is fixedly connected to the rear side of protective shell 2.

[0023] Reference Figure 3 Clamping device 4 includes gear 401 and rack 402, rack 402 is provided at the rear side of protective shell 2, left side protective shell 2 bottom and right side protective shell 2 top are all fixedly connected with rack 402, gear 401 is arranged between rack 402, and rack 402 is all connected to gear 401 by meshing.

[0024] By using the above scheme: by setting clamping device 4, the adaptability of protective shell 2 under different environmental conditions can be improved by the cooperation of gear 401 and rack 402, the reliability and precision of pressure gauge 1 under various working conditions are ensured, and finally the overall service life and safety of equipment are improved.

[0025] Reference Figure 2 And Figure 3 Rack 402 top side and bottom rack 402 bottom side are all provided with sliding slot 5, connecting plate 6 is arranged at the rear side of protective shell 2, connecting plate 6 is connected to the inside of sliding slot 5 by sleeving at the front side, gear 401 rear end is connected to the front side of connecting plate 6 by bearing, and gear 401 rear end penetrates and extends out the rear side of connecting plate 6.

[0026] By using the above scheme: by setting sliding slot 5 and connecting plate 6, protective shell 2 is not prone to loosening or misplacement during use, so that the internal pressure gauge 1 is better protected from the influence of external environment.

[0027] Reference Figure 4 Gear 401 rear end is fixedly connected with rotating rod 7, limit block 8 is fixedly connected at the rear side of left side protective shell 2, cavity 9 is opened in the inside of limit block 8, spring 10 is fixedly connected at the left side of cavity 9, another end of spring 10 is fixedly connected with push plate 11, push plate 11 right side is fixedly connected with stop rod 12, stop rod 12 right end penetrates and extends out the right side of limit block 8, and the position of stop rod 12 corresponds with rotating rod 7.

[0028] By using the above scheme: by setting stop rod 12 and spring 10, rotating rod 7 can be quickly locked by simple mechanical action, and the operation convenience of the device is enhanced.

[0029] ReferenceFigure 4 A plurality of support rods 13 are fixedly connected to the left side of the cavity 9, and the right ends of the support rods 13 are fixedly connected to the right side of the cavity 9. The support rods 13 are provided with two, the push plate 11 is connected to the surface of the support rod 13 by sleeving, and the rear side of the push plate 11 penetrates and extends out of the rear side of the limiting block 8.

[0030] The above scheme has the advantages that: by arranging the support rod 13, the push plate 11 can move stably along a straight line under the action of the spring 10, and the inclination or jamming of the push plate 11 during movement is effectively prevented, so that the locking or unlocking action of the blocking rod 12 during rotation of the gear 401 is ensured.

[0031] Reference Figure 1 And Figure 2 A plurality of compression springs 14 are fixedly connected to the outer surface of the protective shell 2. The compression springs 14 are provided with six, and are equidistantly distributed on the surface of the protective shell 2. The other end of the compression spring 14 is fixedly connected with the top cover 15. The top cover 15 is provided with two, and each three compression springs 14 share the same top cover 15. The top cover 15 and the compression spring 14 are used in cooperation.

[0032] The above scheme has the advantages that: by arranging the compression spring 14, the top cover 15 can move up and down with the compression or expansion of the compression spring 14, so as to play a buffering role when the pressure gauge 1 is subjected to external impact or vibration.

[0033] Reference Figure 1 The left side of the left protective shell 2 and the right side of the right protective shell 2 are fixedly connected with limiting rods 16. The other end of the limiting rod 16 penetrates and extends out of the outer surface of the top cover 15. The shape of the outer end of the limiting rod 16 is larger than the shape of the end of the limiting rod 16 close to the pressure gauge 1.

[0034] The above scheme has the advantages that: by arranging the limiting rod 16, the position of the top cover 15 can be limited, so as to avoid the position deviation of the top cover 15 during use, and ensure that the shock absorption effect will not be attenuated.

[0035] The working principle of the utility model:

[0036] In use, the protective shell 2 is installed on both sides of the pressure gauge 1 in a sleeved manner, and then the rotating rod is rotated, since the gear 401 and the rack 402 in the clamping device 4 are engaged with each other, the gear 401 is rotated to drive the two side racks 402 to move, and the rack 402 drives the protective shell 2 to move, so as to ensure that the protective shell 2 can be firmly fixed around the pressure gauge 1, and then the rotating rod 7 at the rear end of the gear 401 is combined with the spring 10, the push plate 11 and the stop rod 12 inside the limiting block 8, forming an automatic locking mechanism, by pulling the push plate 11 to drive the stop rod 12, the rotating rod 7 is unlocked, and the spring 10 of the push plate 11 is released to reset the push plate 11 and the stop rod 12, so as to limit the position of the rotating rod 7, so that the protective shell 2 can be stably kept in place in the closed state, preventing accidental opening during use, and then since a plurality of compression springs 14 and top covers 15 are installed on the outer surface of the protective shell 2, the compression springs 14 can be compressed or stretched under external force, thereby absorbing external impact, and the top cover 15 is used in cooperation with the compression spring 14 to reduce the vibration of the pressure gauge 1, ensuring that the measurement accuracy is not affected, effectively improving the protection level of the pressure gauge 1 in complex environments, and prolonging the service life.

[0037] To sum up: the protective structure for the oil-filled explosion-proof high-pressure pressure gauge, by setting the pressure gauge 1, the protective shell 2, the connecting rod 3, the clamping device 4, the gear 401, the rack 402, the chute 5, the connecting plate 6, the rotating rod 7, the limiting block 8, the cavity 9, the spring 10, the push plate 11, the stop rod 12, the support rod 13, the compression spring 14, the top cover 15 and the limiting rod 16, solve the problem that the existing protective equipment often lacks an effective locking mechanism, and is prone to looseness when encountering vibration or impact, thereby unable to ensure the stability of long-term use, and the existing equipment also does not have good buffering and shock absorbing performance, which means that when facing external impact, the internal pressure gauge may be directly affected, thereby causing the problem of decreased measurement accuracy.

[0038] It should be noted that in this text, relational terms such as first and second are used only to distinguish one entity or operation from another, and do not necessarily require or imply that there is any such actual relationship or order between these entities or operations. Moreover, the terms "include", "contain" or any other variants thereof are intended to cover non-exclusive inclusion, so that the process, method, article or equipment including a series of elements not only includes those elements, but also includes other elements not explicitly listed or inherent to such process, method, article or equipment.

[0039] Although the embodiments of the present application have been shown and described, it is to be understood that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present application, the scope of which is defined by the appended claims and their equivalents.

Claims

1. An explosion-proof structure for an oil-filled high-pressure pressure gauge, comprising a pressure gauge (1) and a protective shell (2), characterized in that: The pressure gauge (1) is provided with protective shells (2) on the left and right sides, the protective shells (2) are connected to the left and right sides of the pressure gauge (1) by sleeving, a connecting rod (3) is fixedly connected to the bottom of the pressure gauge (1), and the surface of the connecting rod (3) is provided with threads.

2. The protective structure for oil-filled explosion-proof high-pressure pressure gauge according to claim 1, characterized in that: The clamping device (4) comprises a gear (401) and a rack (402), the rear side of each protective shell (2) is provided with a rack (402), the bottom of the left protective shell (2) and the top of the right protective shell (2) are both fixedly connected with racks (402), and the racks (402) are provided with gears (401) therebetween.

3. The protective structure for oil-filled explosion-proof high-pressure pressure gauge according to claim 2, characterized in that: The top side of the top rack (402) and the bottom side of the bottom rack (402) are both provided with sliding grooves (5), the rear side of each protective shell (2) is provided with a connecting plate (6), the front side of the connecting plate (6) is connected to the inside of the sliding groove (5) by sleeving, the rear end of the gear (401) is connected to the front side of the connecting plate (6) through a bearing, and the rear end of the gear (401) penetrates and extends out of the rear side of the connecting plate (6).

4. The protective structure for oil-filled explosion-proof high-pressure pressure gauge according to claim 2, characterized in that: The rear end of the gear (401) is fixedly connected with a rotating rod (7), the rear side of the left protective shell (2) is fixedly connected with a limiting block (8), the inside of the limiting block (8) is provided with a cavity (9), the left side of the cavity (9) is fixedly connected with a spring (10), the other end of the spring (10) is fixedly connected with a push plate (11), the right side of the push plate (11) is fixedly connected with a blocking rod (12), the right end of the blocking rod (12) penetrates and extends out of the right side of the limiting block (8), and the blocking rod (12) corresponds to the position of the rotating rod (7).

5. The protective structure for oil-filled explosion-proof high-pressure pressure gauge according to claim 4, characterized in that: A plurality of supporting rods (13) are fixedly connected to the left side of the cavity (9), the right end of the supporting rod (13) is fixedly connected to the right side of the cavity (9), the supporting rod (13) is provided with two, the push plate (11) is connected to the surface of the supporting rod (13) by sleeving, and the rear side of the push plate (11) penetrates and extends out of the rear side of the limiting block (8).

6. The protective structure for oil-filled explosion-proof high-pressure pressure gauge according to claim 1, characterized in that: A plurality of compression springs (14) are fixedly connected to the outer surface of the protective shell (2), the compression springs (14) are provided with six, and are equidistantly distributed on the surface of the protective shell (2), the other end of the compression spring (14) is fixedly connected with a top cover (15), the top cover (15) is provided with two, and every three compression springs (14) share the same top cover (15), and the top cover (15) and the compression spring (14) are used in cooperation.

7. The protective structure for oil-filled explosion-proof high-pressure pressure gauge according to claim 6, characterized in that: The left side of the left protective shell (2) and the right side of the right protective shell (2) are both fixedly connected with limiting rods (16), the other end of the limiting rod (16) penetrates and extends out of the outer surface of the top cover (15), and the shape of the outer end of the limiting rod (16) is larger than the shape of the end of the limiting rod (16) close to the pressure gauge (1).

Images