Anti-locking spring tube

Abstract

The utility model provides an anti-jamming bourdon tube, which relates to the technical field of bourdon tubes, and comprises a bourdon tube main body, a limiting device is arranged on the inner wall of the bourdon tube main body, a connecting device is arranged on the surface of the bourdon tube main body, and the limiting device comprises a connecting block. The connecting blocks are uniformly arranged on one side of the inner wall of the bourdon tube main body, connecting grooves are formed in the bottoms of the connecting blocks, limiting grooves are formed in the tops of the connecting grooves, balls are arranged on the inner walls of the limiting grooves, and connecting rods are fixedly connected to the bottoms of the balls. The connecting blocks are connected together through the balls and the connecting rods, then the connecting blocks are limited in the inner wall of the bourdon tube body, when the bourdon tube body deforms, the balls are driven into the limiting grooves, and due to the fact that the connecting rods are limited in the connecting grooves, the deformation degree of the bourdon tube body is reduced.

Description

Technical Field

[0001] This utility model relates to the field of spring tube technology, and in particular to a spring tube that prevents jamming. Background Technology

[0002] Bourdon tubes have various applications in medicine, mainly including guidewire exchange in interventional surgery, constant torque springs in surgical robots, and gas springs in medical beds, thus enabling their use in medical settings.

[0003] The inventors discovered in their daily work that Bourdon tubes still have at least the following problems: Bourdon tubes have various applications in medicine, mainly including guidewire exchange in interventional surgery, constant torque springs in surgical robots, and gas springs in medical beds. This allows Bourdon tubes to be used in medical settings. However, in actual use, when the deformation of the Bourdon tube is too great, it may get stuck and become difficult to return to its original shape, which will affect the use of the Bourdon tube to some extent. Utility Model Content

[0004] The purpose of this invention is to address the shortcomings of existing technologies by proposing an anti-jamming spring tube.

[0005] To achieve the above objectives, the present invention adopts the following technical solution: a spring tube for preventing jamming, comprising a spring tube body, a limiting device provided on the inner wall of the spring tube body, a connecting device provided on the surface of the spring tube body, the limiting device comprising a connecting block, a plurality of the connecting blocks being evenly arranged on one side of the inner wall of the spring tube body, a connecting groove being formed at the bottom of the connecting block, a limiting groove being formed at the top of the connecting groove, a sphere being provided on the inner wall of the limiting groove, a connecting rod being fixedly connected to the bottom of the sphere, the bottom of the connecting rod being fixedly connected to the top of another connecting block, and the diameter of the inner wall of the connecting groove being larger than the diameter of the circular cross-section of the connecting rod.

[0006] The effect achieved by the above components is as follows: when using the limiting device, multiple connecting blocks are connected together by the ball and the connecting rod, thereby restricting the connecting blocks within the inner wall of the spring tube body. When the spring tube body deforms, the ball is moved inside the limiting groove. Because the connecting rod is restricted inside the connecting groove, the degree of deformation of the spring tube body is reduced, which can, to a certain extent, prevent the spring tube body from being unable to return to its original shape due to excessive deformation.

[0007] Preferably, a rubber sleeve is fitted on the surface of the connecting rod, one end of the rubber sleeve is fixedly connected to the bottom of the connecting block, and the bottom of the rubber sleeve is fixedly connected to the top of another connecting block.

[0008] The effect achieved by the above components is that the rubber sleeve can block the gaps between multiple connecting blocks. When the main body of the spring tube is rotated, the rubber sleeve deforms and wraps around the surface of the connecting rod, thus preventing the main body of the spring tube from rotating too much.

[0009] Preferably, a rubber rod is fixedly connected to one side of the connecting block, the rubber rod is slidably inserted through one side of the spring tube body, and a rubber block is fixedly connected to the end of the rubber rod away from the connecting block.

[0010] The effect achieved by the above components is to pass the rubber rod through one side of the spring tube body, thereby squeezing the rubber block out of the interior of the spring tube body.

[0011] Preferably, the end of the rubber block away from the rubber rod has a conical surface.

[0012] The effect achieved by the above-mentioned components is that the conical surface can effectively compress the rubber block through one side of the spring tube body.

[0013] Preferably, the connecting device includes an elastic sleeve, which is fitted onto the surface of the spring tube body.

[0014] The effect achieved by the above components is that when using the connecting device, the elastic sleeve is placed on the surface of the spring tube body, so that liquid can be transported through the spring tube body.

[0015] Preferably, both ends of the elastic sleeve are fixedly connected with rubber rings, which are respectively disposed in the inner walls of both ends of the spring tube body.

[0016] The effect achieved by the above components is that by placing the rubber rings at both ends of the spring tube body, the elastic sleeve can be confined to the surface of the spring tube body.

[0017] Preferably, the inner wall of the elastic sleeve is uniformly provided with grooves, and the inner wall of the grooves is provided with elastic ropes, the two ends of which are fixedly connected to the two ends of the elastic sleeve.

[0018] The effect achieved by the above components is that the elasticity of the elastic sleeve can be enhanced to a certain extent by means of the elastic rope, so that the elastic sleeve can be well set on the surface of the spring tube body.

[0019] Preferably, the surface of the elastic rope is covered with a rubber band, and both ends of the rubber band are fixedly connected to the inner wall of the elastic sleeve.

[0020] The effect achieved by the above components is that the elastic cord is confined inside the groove by the rubber band, which can prevent the elastic cord from getting stuck in the gaps on the surface of the spring tube body to a certain extent.

[0021] In this invention, by setting a limiting device, multiple connecting blocks are connected together by a ball and a connecting rod when the limiting device is used, thereby restricting the connecting blocks within the inner wall of the spring tube body. When the spring tube body deforms, the ball is moved inside the limiting groove. Because the connecting rod is restricted inside the connecting groove, the degree of deformation of the spring tube body is reduced, which can, to a certain extent, prevent the spring tube body from being unable to return to its original shape due to excessive deformation. Attached Figure Description

[0022] Figure 1 A three-dimensional structural diagram of a spring tube designed to prevent jamming is provided for this utility model.

[0023] Figure 2 A three-dimensional structural diagram of the novel connecting block is provided for this utility model;

[0024] Figure 3 for Figure 2 Enlarged view of point A in the middle;

[0025] Figure 4 A three-dimensional structural diagram of the novel elastic sleeve proposed in this utility model is provided.

[0026] Legend: 1. Bourdon tube body; 2. Limiting device; 201. Connecting block; 202. Rubber rod; 203. Rubber block; 204. Conical surface; 205. Connecting groove; 206. Limiting groove; 207. Connecting rod; 208. Ball; 209. Rubber sleeve; 3. Connecting device; 301. Elastic sleeve; 302. Rubber ring; 303. Groove; 304. Elastic rope; 305. Rubber belt. Detailed Implementation

[0027] Example 1, as Figure 1-4 As shown, a spring tube designed to prevent jamming is provided. The inner wall of the spring tube body 1 is provided with a limiting device 2, and the surface of the spring tube body 1 is provided with a connecting device 3. Spring tubes have various applications in medicine, mainly including guide wire exchange in interventional surgery, constant torque springs in surgical robots, and gas springs in medical beds, thus enabling the use of spring tubes in medical applications.

[0028] Reference Figure 2 and Figure 3The limiting device 2 includes connecting blocks 201. Multiple connecting blocks 201 are evenly arranged on one side of the inner wall of the spring tube body 1. A connecting groove 205 is formed at the bottom of each connecting block 201, and a limiting groove 206 is formed at the top of the connecting groove 205. A sphere 208 is provided on the inner wall of the limiting groove 206. A connecting rod 207 is fixedly connected to the bottom of the sphere 208. The bottom of the connecting rod 207 is fixedly connected to the top of another connecting block 201. The diameter of the inner wall of the connecting groove 205 is larger than the circular cross-section of the connecting rod 207. When using the limiting device 2, multiple connecting blocks 201 are connected together by the ball 208 and the connecting rod 207, thereby confining the connecting blocks 201 within the inner wall of the spring tube body 1. When the spring tube body 1 deforms, the ball 208 is moved inside the limiting groove 206. Because the connecting rod 207 is confined inside the connecting groove 205, the degree of deformation of the spring tube body 1 is reduced. This can, to a certain extent, prevent the spring tube body 1 from failing due to excessive deformation. The original state is restored. A rubber sleeve 209 is fitted on the surface of the connecting rod 207. One end of the rubber sleeve 209 is fixedly connected to the bottom of the connecting block 201, and the bottom of the rubber sleeve 209 is fixedly connected to the top of another connecting block 201. The rubber sleeve 209 can block the gaps between multiple connecting blocks 201. When the control spring tube body 1 is rotated, the rubber sleeve 209 deforms and wraps around the surface of the connecting rod 207, so that the spring tube body 1 cannot rotate too much. A rubber rod 202 is fixedly connected to one side of the connecting block 201. The rubber rod 202 is slidably inserted into one side of the spring tube body 1. A rubber block 203 is fixedly connected to the end of the rubber rod 202 away from the connecting block 201. The rubber rod 202 is passed through one side of the spring tube body 1, and then the rubber block 203 is squeezed out of the interior of the spring tube body 1. A conical surface 204 is opened at the end of the rubber block 203 away from the rubber rod 202. The conical surface 204 can effectively squeeze the rubber block 203 through one side of the spring tube body 1.

[0029] Reference Figure 4The connecting device 3 includes an elastic sleeve 301, which is fitted onto the surface of the spring tube body 1. When using the connecting device 3, the elastic sleeve 301 is fitted onto the surface of the spring tube body 1, allowing liquid to be transported through the spring tube body 1. Rubber rings 302 are fixedly connected to both ends of the elastic sleeve 301. The rubber rings 302 are respectively disposed in the inner walls of both ends of the spring tube body 1. By placing the rubber rings 302 at both ends of the spring tube body 1, the elastic sleeve 301 is confined to the surface of the spring tube body 1. Grooves 303 are evenly distributed on the inner wall of the elastic sleeve 301. The inner wall of 3 is provided with an elastic rope 304. The two ends of the elastic rope 304 are fixedly connected to the two ends of the elastic sleeve 301. The elastic rope 304 can enhance the elasticity of the elastic sleeve 301 to a certain extent, so that the elastic sleeve 301 can be well set on the surface of the spring tube body 1. A rubber band 305 is sleeved on the surface of the elastic rope 304. Both ends of the rubber band 305 are fixedly connected to the inner wall of the elastic sleeve 301. The rubber band 305 restricts the elastic rope 304 inside the groove 303, which can prevent the elastic rope 304 from getting stuck in the gap on the surface of the spring tube body 1 to a certain extent.

[0030] Working principle: Bourdon tubes have various applications in medicine, mainly including guidewire exchange in interventional surgery, constant torque springs in surgical robots, and gas springs in medical beds. When using the limiting device 2, multiple connecting blocks 201 are connected together via a ball 208 and a connecting rod 207. A rubber rod 202 passes through one side of the spring tube body 1, thus forcing a rubber block 203 out of the interior of the spring tube body 1. The end of the rubber block 203 away from the rubber rod 202 has a conical surface 204. This conical surface 204 effectively compresses the rubber block 203 through one side of the spring tube body 1, thus confining the connecting block 201 within the inner wall of the spring tube body 1. When the spring tube body 1 deforms, the ball 208 is moved within the limiting groove 206. Because the connecting rod 207 is confined within the connecting groove 205, the degree of deformation of the spring tube body 1 is controlled. The rubber sleeve 209 can block the gaps between multiple connecting blocks 201. When the control spring tube body 1 rotates, the rubber sleeve 209 deforms and wraps around the surface of the connecting rod 207, so that the spring tube body 1 cannot rotate too much. This can, to a certain extent, prevent the spring tube body 1 from being unable to return to its original shape due to excessive deformation. When using the connecting device 3, the elastic sleeve 301 is fitted on the surface of the spring tube body 1, and the rubber ring 302 is set at both ends of the spring tube body 1. This can restrict the elastic sleeve 301 on the surface of the spring tube body 1, so that liquid can be transported through the spring tube body 1. The elastic rope 304 can, to a certain extent, strengthen the elasticity of the elastic sleeve 301, and the rubber band 305 restricts the elastic rope 304 inside the groove 303. This can, to a certain extent, prevent the elastic rope 304 from getting stuck in the gaps on the surface of the spring tube body 1.

Claims

1. A spring tube designed to prevent jamming, comprising a spring tube body (1), characterized in that: The inner wall of the spring tube body (1) is provided with a limiting device (2). The limiting device (2) includes a plurality of connecting blocks (201) evenly arranged on the inner wall of the spring tube body (1). A ball (208) is provided inside the connecting block (201). A connecting rod (207) is fixedly connected to the bottom of the ball (208). The bottom of the connecting rod (207) is fixedly connected to the top of another connecting block (201).

2. The anti-jamming spring tube according to claim 1, characterized in that: The surface of the connecting rod (207) is fitted with a rubber sleeve (209), one end of the rubber sleeve (209) is fixedly connected to the bottom of the connecting block (201), and the bottom of the rubber sleeve (209) is fixedly connected to the top of another connecting block (201).

3. The anti-jamming spring tube according to claim 1, characterized in that: A rubber rod (202) is fixedly connected to one side of the connecting block (201). The rubber rod (202) is slidably inserted into one side of the spring tube body (1). A rubber block (203) is fixedly connected to the end of the rubber rod (202) away from the connecting block (201).

4. The anti-jamming spring tube according to claim 3, characterized in that: The rubber block (203) has a conical surface (204) at the end away from the rubber rod (202).

5. The anti-jamming spring tube according to claim 1, characterized in that: A connecting device (3) is provided on the surface of the spring tube body (1). The connecting device (3) includes an elastic sleeve (301) which is fitted onto the surface of the spring tube body (1).

6. The anti-jamming spring tube according to claim 5, characterized in that: Both ends of the elastic sleeve (301) are fixedly connected with rubber rings (302), and the rubber rings (302) are respectively disposed in the inner walls of both ends of the spring tube body (1).

7. A spring tube for preventing jamming according to claim 5, characterized in that: The inner wall of the elastic sleeve (301) is uniformly provided with grooves (303), and the inner wall of the grooves (303) is provided with elastic ropes (304). The two ends of the elastic ropes (304) are fixedly connected to the two ends of the elastic sleeve (301).

8. The anti-jamming spring tube according to claim 7, characterized in that: The surface of the elastic rope (304) is fitted with a rubber band (305), and both ends of the rubber band (305) are fixedly connected to the inner wall of the elastic sleeve (301).

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