Damping type pressure gauge

Abstract

The utility model discloses a damping type pressure gauge, relates to the pressure gauge technology field, and comprises a pressure gauge, the pressure gauge comprises a receiving tube used for pressure detection and a gauge body used for displaying the pressure value, the receiving tube is sleeved with a first sleeve, one side of the first sleeve close to the gauge body is fixedly connected with a first circular ring, and the first circular ring is provided with a second circular ring. The first sleeve is sleeved with a second sleeve, a second cavity is formed in the second sleeve, a plurality of sets of buffering pipes used for buffering the receiving pipe in the circumferential direction are arranged in the second cavity, a second circular ring is fixedly connected to the side, close to the first circular ring, of the second sleeve, and the second circular ring is in threaded connection with a cylinder; the side, away from the second circular ring, of the cylinder is fixedly connected with a third circular ring, the first circular ring is located between the second circular ring and the third circular ring, and the side, close to the first circular ring, of the second circular ring is provided with a first buffer assembly making contact with the first circular ring.

Description

Technical Field

[0001] The utility model relates to the technical field of pressure gauges, and specifically relates to a shock-absorbing pressure gauge. Background Technique

[0002] At present, pressure gauges are widely used in many fields. In some special places, in order to detect parameters such as pressure and temperature of pressure equipment, a pressure gauge is connected to the pressure equipment. However, the pressure equipment generally has large mechanical vibrations, and these vibrations will be transmitted to the pressure gauge. Since the pressure gauge belongs to precision instruments, the vibration force will not only damage the sealing performance of the joint between the device and the pressure gauge, but also cause the internal components of the pressure gauge to loosen and be damaged, thereby increasing the measurement error of the instrument, shortening the service life of the pressure gauge, increasing the production cost of detection, and reducing the overall production efficiency.

[0003] The pressure gauge shock-absorbing and buffering device with the publication number of CN216132617U includes an upper joint assembly, a protective sleeve, a lower joint, a pressure buffering conduit and a pressure-resistant partition. The upper end of the protective sleeve is connected with the upper joint assembly, and the lower end is connected with the lower joint. Longitudinal sliding grooves are circumferentially and longitudinally opened on the inner wall of the lower end of the protective sleeve, and more than three pressure buffering components are evenly distributed in the circumferential direction on the upper end surface of the sliding plate.

[0004] Although this device can achieve the shock-absorbing effect of the pressure gauge, the shock-absorbing effect is poor and it cannot achieve an all-round shock-absorbing function. Therefore, it is very necessary to design a shock-absorbing pressure gauge with improved detection accuracy. Content of the Utility Model

[0005] The purpose of the utility model is to provide a shock-absorbing pressure gauge for the existing technical defects to solve the problems raised in the above background technique.

[0006] To solve the above technical problems, the utility model provides the following technical solution: A shock-absorbing pressure gauge includes a pressure gauge. The pressure gauge includes a receiving tube for pressure detection and a gauge body for displaying pressure values. A sleeve one is sleeved on the receiving tube. One side of the sleeve one close to the gauge body is fixedly connected with a ring one. A sleeve two is sleeved on the sleeve one. The sleeve two is provided with a cavity two. A plurality of groups of buffer tubes for buffering the receiving tube in the circumferential direction are arranged in the cavity two. One side of the sleeve two close to the ring one is fixedly connected with a ring two. The ring two is screwed with a cylinder. One side of the cylinder far from the ring two is fixedly connected with a ring three. The ring one is located between the ring two and the ring three. One side of the ring two close to the ring one is provided with a buffer component one in contact with the ring one. One side of the ring three close to the ring one is provided with a buffer component two in contact with the ring one.

[0007] The present utility model is further described as follows. The cross-section of the buffer tube along the axial direction is funnel-shaped. One end of the buffer tube close to Ring 1 is fixedly connected to the inner wall of Cavity 2. Inside the buffer tube on the side away from Ring 1, Sleeve 1 is wrapped.

[0008] The present utility model is further described as follows. The first buffer assembly includes a plurality of groups of first limiting grooves opened on Ring 2. First limiting posts are arranged in the first limiting grooves. The second buffer assembly includes a plurality of groups of second limiting grooves opened on Ring 3. Second limiting posts are arranged in the second limiting grooves.

[0009] The present utility model is further described as follows. The cross-section of the first limiting groove, the second limiting groove and the axial direction is frustum-shaped.

[0010] The present utility model is further described as follows. The first limiting post includes a first frustum and a first top post. The first frustum is located in the first limiting groove. On the side of the first frustum close to the first top post, a first spring is arranged. The first spring is located in the first limiting groove and sleeved on the first top post. On the side of the first frustum away from the first top post, a second spring is arranged.

[0011] The present utility model is further described as follows. The second limiting post includes a second frustum and a second top post. On the side of the second frustum close to the second top post, a third spring is arranged. The third spring is located in the second limiting groove and sleeved on the second top post. On the side of the second frustum away from the second top post, a fourth spring is arranged.

[0012] The present utility model is further described as follows. On the outer circumferential surface of the side of Sleeve 2 close to Ring 1, an external thread for connecting with the device to be measured is provided.

[0013] Compared with the prior art, the beneficial effects achieved by the present utility model are as follows: In the present utility model, the receiving tube of the pressure gauge is protected by arranging Sleeve 1.

[0014] By arranging Sleeve 2 and arranging a buffer tube with elastic buffering effect inside Sleeve 2 to wrap Sleeve 1, buffering and shock absorption of the force transmitted in the circumferential direction to the receiving tube are realized.

[0015] By arranging the first buffer assembly and the second buffer assembly to elastically limit Ring 1 on Sleeve 1, buffering and shock absorption of the force transmitted in the axial direction to the receiving tube are realized. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] The drawings are used to provide further understanding of the present utility model, and constitute a part of the specification. Together with the embodiments of the present utility model, they are used to explain the present utility model, but do not constitute a limitation to the present utility model. In the drawings:

[0017] Figure 1 It is the overall front view sectional structure schematic diagram of the present utility model;

[0018] Figure 2 is a partial enlarged structural schematic diagram of area A of Figure 1 the present utility model;

[0019] In the figure: 1, pressure gauge; 2, receiving pipe; 3, meter body; 4, sleeve one; 5, ring one; 6, cavity one; 7, sleeve two; 8, cavity two; 9, buffer pipe; 10, ring two; 11, cylinder; 12, ring three; 13, buffer assembly one; 14, limit groove one; 15, limit post one; 16, frustum one; 17, top post one; 18, spring one; 19, spring two; 20, buffer assembly two; 21, limit groove two; 22, limit post two; 23, frustum two; 24, top post two; 25, spring three; 26, spring four. Specific embodiments

[0020] The technical solution of the present utility model will be further described in detail and non - restrictively below in conjunction with the preferred embodiments and their accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all of the embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative efforts fall within the scope of protection of the present utility model.

[0021] Please refer to Figure 1-2 , the present utility model provides a technical solution: a shock - absorbing pressure gauge, including a pressure gauge 1, the pressure gauge 1 includes a receiving pipe 2 for pressure detection and a meter body 3 for displaying pressure values. The receiving pipe 2 is vertically arranged, and one end of the receiving pipe 2 penetrates into the interior of the meter body 3 and is connected to the pressure transmission system inside the meter body 3.

[0022] A sleeve one 4 is sleeved on the receiving pipe 2. One side of the sleeve one 4 close to the meter body 3 is fixedly connected with a ring one 5. The sleeve one 4 is provided with a cavity one 6, and the cavity one 6 is adapted to the receiving pipe 2, so that the outer wall of the receiving pipe 2 is in contact with the inner wall of the cavity one 6.

[0023] The cavity one 6 is provided with an external thread on the side close to the meter body 3, and the receiving pipe 2 is provided with an internal thread corresponding to the external thread of the cavity one 6, so that the sleeve one 4 is thread - connected to the receiving pipe 2.

[0024] The sleeve one 4 is used for high - pressure protection of the receiving pipe 2 to prevent the receiving pipe 2 from breaking in a high - pressure environment.

[0025] A sleeve two 7 is sleeved on the sleeve one 4. The sleeve two 7 is provided with a cavity two 8. One end of the sleeve one 4 far from the meter body 3 is soft - sealed with the inner wall of the cavity two 8. The outer circumferential surface of the sleeve two 7 on the side close to the ring one 5 is provided with an external thread for thread - connecting to the equipment and instruments that need to perform pressure detection.

[0026] A plurality of groups of buffer tubes 9 are arranged in the cavity 2 8. The buffer tubes 9 are made of elastic memory material. The cross section of the buffer tubes 9 along the axial direction is funnel-shaped. The end of the buffer tubes 9 close to the ring 1 5 is fixedly connected to the inner wall of the cavity 2 8. The side of the buffer tubes 9 away from the ring 1 5 is wrapped with the sleeve 1 4. When a vibration force vibrates the receiving tube 2 along the circumferential direction of the receiving tube 2, the vibration force is buffered by the buffer tubes 9, thereby reducing the vibration effect of the vibration force on the pressure gauge 1.

[0027] A ring 2 10 is fixedly connected to one side of the sleeve 2 7 close to the ring 1 5, and an external thread is provided on the outer circumferential surface of the ring 2 10. A cylinder 11 is sleeved on the outer side of the ring 15. The outer circumferential surface of the ring 15 is in direct contact with the circumferential inner wall of the cylinder 11, and an internal thread is provided on the inner wall of the cylinder 11 close to the ring 2 10, so that the ring 2 10 is threadedly connected to the cylinder 11.

[0028] A third ring 12 is fixedly connected to the side of the cylinder 11 away from the second ring 10 , and the first ring 5 is located between the second ring 10 and the third ring 12 .

[0029] A buffer component 13 is provided on one side of the ring 2 10 close to the ring 1 5. The buffer component 13 includes a plurality of groups of limit grooves 14 opened on the ring 2 10. The plurality of groups of limit grooves 14 are evenly distributed in a circle with the center of the ring 2 10 as the center. The cross-section of the limit groove 14 along the axial direction is a boss shape. A limit column 15 is provided in the limit groove 14. The limit column 15 includes a truncated cone 16 and a top column 17. The truncated cone 16 and the top column 17 are integrally provided.

[0030] The frustum 16 is located in the limiting groove 14 , and the outer circumferential surface of the frustum 16 is in direct contact with the circumferential inner wall of the limiting groove 14 , so that the frustum 16 slides in the limiting groove 14 along the axial direction.

[0031] The side of the top column 17 away from the truncated table 16 passes through the notch of the limiting groove 14 and abuts against the circular ring 15, and the outer circumferential surface of the top column 17 is in direct contact with the inner wall of the notch of the limiting groove 14.

[0032] A spring 18 is provided on one side of the round table 16 close to the top column 17. The spring 18 is located in the limiting groove 14 and is sleeved on the top column 17. A spring 2 19 is provided on the side of the round table 16 away from the top column 17.

[0033] On one side of the third ring 12 close to the first ring 5, a second buffer assembly 20 is provided. The second buffer assembly 20 includes a plurality of groups of second limiting grooves 21 formed on the third ring 12. The plurality of groups of second limiting grooves 21 are evenly distributed in a circumferential manner centered on the center of the third ring 12. The cross-section of the second limiting groove 21 in the axial direction is in the shape of a boss. A second limiting post 22 is arranged in the second limiting groove 21. The second limiting post 22 includes a second frustum 23 and a top post 24, and the second frustum 23 and the top post 24 are integrally arranged.

[0034] The second frustum 23 is located in the second limiting groove 21, and the outer circumferential surface of the second frustum 23 is in direct contact with the circumferential inner wall of the second limiting groove 21, so that the second frustum 23 slides in the second limiting groove 21 in the axial direction.

[0035] On the side of the top post 24 away from the second frustum 23, it penetrates through the notch of the second limiting groove 21 and abuts against the first ring 5. The outer circumferential surface of the top post 24 is in direct contact with the inner wall of the notch of the second limiting groove 21.

[0036] On the side of the second frustum 23 close to the top post 24, a third spring 25 is provided. The third spring 25 is located in the second limiting groove 21 and sleeved on the top post 24. On the side of the second frustum 23 facing away from the top post 24, a fourth spring 26 is provided.

[0037] Through the cooperation of the first buffer assembly 13 and the second buffer assembly 20, the first ring 5 integrally connected with the first sleeve 4 is buffered and limited. When there is a vibration force vibrating the receiving pipe 2 along the axial direction of the receiving pipe 2, the vibration force is buffered by the first buffer assembly 13 and the second buffer assembly 20, thereby reducing the vibration influence caused by the vibration force on the pressure gauge 1.

[0038] In this embodiment, first, the integrally arranged cylinder 11 and the third ring 12 are sleeved on the receiving pipe 2 of the pressure gauge 1. Subsequently, the integrally arranged first sleeve 4 and the first ring 5 are sleeved on the receiving pipe 2, so that the receiving pipe 2 is completely attached to the inner wall of the first cavity 6.

[0039] Subsequently, the cylinder 11 is adjusted so that the cylinder 11 is sleeved on the first ring 5. Finally, the integrally arranged second sleeve 7 and the second ring 10 are sleeved on the first sleeve 4, so that the multiple groups of buffer pipes 9 in the second cavity 8 wrap the first sleeve 4, and the buffer pipes 9 perform circumferential shock absorption and buffering on the first sleeve 4 and the pressure gauge 1.

[0040] The second ring 10 and the cylinder 11 are threadedly connected. The cylinder 11 is rotated so that both the first limiting post 15 and the second limiting post 22 abut against the end surface of the first ring 5, and the side of the second sleeve 7 and the first sleeve 4 away from the gauge body 3 is filled with a soft sealing material for sealing, thereby completing the shock absorption and buffering effect on the first sleeve 4 and the pressure gauge 1 in the axial direction through the first buffer assembly 13 and the second buffer assembly 20.

[0041] In the description of the present utility model, it should be understood that the orientation or positional relationship indicated by terms such as "upper", "lower", "front", "rear", "left", "right", etc. is based on the orientation or positional relationship shown in the drawings. It is only for the convenience of describing the present utility model, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, it should not be construed as a limitation to the present utility model.

[0042] Finally, it should be pointed out that the above embodiments are only used to illustrate the technical solutions of the present utility model, rather than to limit it. Although the present utility model has been described in detail with reference to the foregoing embodiments, those of ordinary skill in the art should understand that they can still modify the technical solutions recorded in the foregoing embodiments, or perform equivalent replacements for some of the technical features. These modifications or replacements do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of the present utility model.

Claims

1. A shock-absorbing pressure gauge, comprising a pressure gauge (1), characterized in that: The pressure gauge (1) includes a receiving tube (2) for pressure detection and a gauge body (3) for displaying the pressure value. A first sleeve (4) is sleeved on the receiving tube (2). One side of the first sleeve (4) close to the gauge body (3) is fixedly connected with a first ring (5). A second sleeve (7) is sleeved on the first sleeve (4). A second cavity (8) is formed in the second sleeve (7). A plurality of buffer tubes (9) for buffering the receiving tube (2) in the circumferential direction are arranged in the second cavity (8). One side of the second sleeve (7) close to the first ring (5) is fixedly connected with a second ring (10). The second ring (10) is screwed with a cylinder (11). One side of the cylinder (11) away from the second ring (10) is fixedly connected with a third ring (12). The first ring (5) is located between the second ring (10) and the third ring (12). A first buffer assembly (13) in contact with the first ring (5) is arranged on one side of the second ring (10) close to the first ring (5). A second buffer assembly (20) in contact with the first ring (5) is arranged on one side of the third ring (12) close to the first ring (5).

2. The shock-absorbing pressure gauge according to claim 1, wherein: The cross-section of the buffer tube (9) along the axial direction is funnel-shaped. One end of the buffer tube (9) close to the first ring (5) is fixedly connected with the inner wall of the second cavity (8). The first sleeve (4) is wrapped inside the buffer tube (9) on the side away from the first ring (5).

3. The shock-absorbing pressure gauge according to claim 1, wherein: The first buffer assembly (13) includes a plurality of first limiting grooves (14) formed in the second ring (10). First limiting posts (15) are arranged in the first limiting grooves (14). The second buffer assembly (20) includes a plurality of second limiting grooves (21) formed in the third ring (12). Second limiting posts (22) are arranged in the second limiting grooves (21).

4. The shock-absorbing pressure gauge according to claim 3, characterized in that: The cross-sections of the first limiting grooves (14) and the second limiting grooves (21) along the axial direction are both frustum-shaped.

5. The shock-absorbing pressure gauge according to claim 3, characterized in that: The first limiting post (15) includes a first frustum (16) and a first top post (17). The first frustum (16) is located in the first limiting groove (14). A first spring (18) is arranged on one side of the first frustum (16) close to the first top post (17). The first spring (18) is located in the first limiting groove (14) and sleeved on the first top post (17). A second spring (19) is arranged on the side of the first frustum (16) away from the first top post (17).

6. The shock-absorbing pressure gauge according to claim 3, characterized in that: The second limiting post (22) includes a second frustum (23) and a second top post (24). A third spring (25) is arranged on one side of the second frustum (23) close to the second top post (24). The third spring (25) is located in the second limiting groove (21) and sleeved on the second top post (24). A fourth spring (26) is arranged on the side of the second frustum (23) away from the second top post (24).

7. A shock-absorbing pressure gauge according to claim 1, characterized in that: External threads for connecting with the device to be measured are formed on the outer circumferential surface of the second sleeve (7) on the side close to the first ring (5).

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