Self-locking fixing device

Abstract

The embodiment of the utility model discloses a self-locking fixing device, which can be detachably assembled in a storage tube, in which a functional element is accommodated, and the self-locking fixing device is used to limit the functional element from being separated from the storage tube, and the self-locking fixing device includes a movable part, a clamping part and an elastic part, wherein the clamping part is arranged on the movable part, the clamping part is used to connect with the storage tube, and then lock the movable part in the storage tube, and one end of the elastic part is connected with the movable part, and the elastic part has a tendency to drive the movable part away from the storage tube. The self-locking fixing device in the embodiment of the utility model can lock and unlock the functional element in the storage tube, and is convenient for disassembling and assembling the functional element in the storage tube.

Description

Technical Field

[0001] The utility model belongs to the technical field of fixing devices, and in particular relates to a self-locking fixing device. Background Art

[0002] Oil production pipelines and other pipelines arranged underwater need to be cleaned regularly with ball cleaners. When the ball cleaner rolls inside the pipeline, it will rub against the pipeline and produce sound. Currently, the sound is mainly monitored by equipment such as acoustic wave sensors to determine whether the cleaner has passed through a specific part of the pipeline.

[0003] Current acoustic wave sensors need to be fixed in a dedicated underwater storage tube. However, due to the complex underwater environment, the fixing effect of the fixing device used to fix the acoustic wave sensor is poor and it is easy to fail after long-term use, causing the position of the acoustic wave sensor to move, affecting the accuracy of the acoustic wave sensor. In severe cases, it may even cause the acoustic wave sensor to fall out of the dedicated underwater storage tube.

[0004] The information disclosed in this background technology section is only intended to increase the understanding of the overall background of the present invention, and should not be regarded as acknowledging or suggesting in any form that the information constitutes the prior art already known to a person skilled in the art. Utility Model Content

[0005] The utility model aims to provide a self-locking fixing device, which can lock and unlock functional elements such as an acoustic wave sensor in a storage tube.

[0006] In order to achieve the above purpose, the technical solution provided by a specific implementation of the utility model is as follows:

[0007] A self-locking fixing device is detachably assembled in a storage tube, in which a functional element is accommodated. The self-locking fixing device is used to limit the functional element from detaching from the storage tube. The self-locking fixing device includes a movable part, a clamping part and an elastic part. The clamping part is arranged on the movable part, and the clamping part is used to connect with the storage tube to lock the movable part in the storage tube. One end of the elastic part is connected to the movable part, and the elastic part has a tendency to drive the movable part away from the storage tube.

[0008] In one or more embodiments of the utility model, a through-going clamping groove is provided on the tube wall of the storage tube, and the self-locking fixing device has a locked state and an unlocked state. In the locked state, the elastic member presses the clamping member into the clamping groove, thereby restricting the movable member from moving out of the storage tube. In the unlocked state, the movable member rotates so that the clamping member is disengaged from the clamping groove.

[0009] In one or more embodiments of the utility model, the movable part can rotate, and a guide groove is provided on the tube wall of the storage tube, and the guide groove and the clamping groove are arranged side by side along the circumference of the storage tube, one end of the guide groove is connected to the clamping groove, and the other end extends to the end face of the storage tube, and the end face of the storage tube is far away from the movable part. In the locked state, the clamping part moves from the guide groove to the clamping groove. In the unlocked state, the clamping part moves from the clamping groove to the guide groove.

[0010] In one or more embodiments of the present invention, the self-locking fixing device also includes a guide rod and a pressure cover, the first end of the guide rod is connected to the pressure cover, and the second end is fixed, the movable part is sleeved on the guide rod and has a tendency to move toward the pressure cover, and the pressure cover is used to limit the movable part from detaching from the guide rod.

[0011] In one or more embodiments of the utility model, a through-hole is provided in the axial direction of the movable part, the cross-sectional dimension of the gland is larger than the cross-sectional dimension of the coupling hole, a boss is provided at the end of the gland close to the movable part, and a first connected groove is provided on the side of the coupling hole, the first groove faces the boss, and one end is located on the end surface of the movable part, and the other end extends along the axial direction of the movable part and does not penetrate the movable part. In the locked state, the movable part is away from the gland, so that the first groove is away from the boss. In the unlocked state, the first groove follows the movable part to approach the gland, and the boss extends into the first groove.

[0012] In one or more embodiments of the utility model, the pressure cover is fixedly connected to the guide rod by screws, a second groove is opened on the end face of the first end of the guide rod, the boss is arranged opposite to the second groove and extends into the second groove, and the boss extends from the second groove along the radial direction of the guide rod.

[0013] In one or more embodiments of the present invention, two of each of the first groove, the second groove and the boss are symmetrically arranged.

[0014] In one or more embodiments of the utility model, the self-locking fixing device also includes a connecting part and a pin for fixing the guide rod, the connecting part is provided with a socket, the second end of the guide rod is inserted into the socket, and the pin is inserted into the connecting part and the second end of the guide rod from the outside of the connecting part along the radial direction of the guide rod.

[0015] In one or more embodiments of the present invention, the self-locking fixing device further comprises a connecting support and a handle coaxially arranged with the movable part, wherein one end of the connecting support is connected to the gland, and the other end is connected to the handle.

[0016] In one or more embodiments of the present invention, the self-locking fixing device further includes a gasket, which is embedded in the movable part and abuts against the elastic part.

[0017] Compared with the prior art, the self-locking fixing device of the embodiment of the utility model can lock and unlock the functional elements in the storage tube, making it convenient to disassemble and assemble the functional elements in the storage tube. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the implementation methods of the utility model or the technical solutions in the prior art, the drawings required for use in the implementation methods or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some implementation methods recorded in the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0019] Figure 1 An exploded view of a self-locking fixing device in one embodiment of the utility model;

[0020] Figure 2 It is a partial exploded view of a self-locking fixing device in one embodiment of the utility model;

[0021] Figure 3 It is a cross-sectional view of a self-locking fixing device in one embodiment of the utility model;

[0022] Figure 4 It is a three-dimensional diagram of a self-locking fixing device in one embodiment of the utility model.

[0023] Explanation of main figure marks: 1. Storage tube, 101. Snap-in groove, 102. Guide groove, 2. Self-locking fixing device, 201. Movable part, 2011. Combination hole, 2012. First groove, 202. Snap-in part, 203. Elastic part, 204. Guide rod, 2041. Second groove, 205. Pin, 206. Pressure cover, 2061. Boss, 207. Connecting support, 208. Handle, 209. Protective cover, 210. Gasket, 211. Screw, 212. Connecting part, 3. Functional element, 4. Taper tube. DETAILED DESCRIPTION

[0024] In order to enable those skilled in the art to better understand the technical solutions in the present invention, the following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work should fall within the scope of protection of the present invention.

[0025] like Figures 1 to 4The self-locking fixing device 2 of one embodiment of the utility model is shown, which can be detachably assembled in the storage tube 1. The storage tube 1 contains a functional element 3. The self-locking fixing device 2 is used to limit the functional element 3 from detaching from the storage tube 1. The self-locking fixing device 2 includes a movable part 201, a clamping part 202 and an elastic part 203. The clamping part 202 is arranged on the movable part 201. The clamping part 202 is used to connect with the storage tube 1, and then lock the movable part 201 in the storage tube 1. One end of the elastic part 203 is connected to the movable part 201. The elastic part 203 has a tendency to drive the movable part 201 away from the storage tube 1. The elastic part 203 can be a component with a certain elasticity such as a spring.

[0026] In the above embodiment, the storage tube 1 can accommodate functional elements 3 such as an acoustic wave sensor, and after the self-locking fixture 2 is installed in the storage tube 1, the clamping member 202 can be connected to the storage tube 1 to lock the position of the movable member 201, thereby fixing the position of the entire self-locking fixture 2 and the functional element 3, and preventing the self-locking fixture 2 and the functional element 3 from being separated from the storage tube 1. Moreover, after the self-locking fixture 2 is removed and the connection between the clamping member 202 and the storage tube 1 is released, the functional element 3 in the storage tube 1 can be quickly taken out.

[0027] In one embodiment, a through-connecting groove 101 is provided on the tube wall of the storage tube 1, and the self-locking fixing device 2 has a locked state and an unlocked state. The clamping member 202 can be a columnar structure, which is mainly used to form a stable clamping structure in combination with the clamping groove 101, thereby fixing the movable member 201 in the storage tube 1. Specifically, in the locked state, the elastic member 203 presses the clamping member 202 into the clamping groove 101 along the axial direction of the storage tube 1, thereby limiting the movable member 201 from moving out of the storage tube 1. In the unlocked state, the clamping member 202 is separated from the clamping groove 101, the clamping structure formed by the two fails, and the movable member 201 can be separated from the fixation.

[0028] Furthermore, in order to facilitate the connection and separation of the clamping member 202 and the clamping groove 101. In one embodiment, the movable member 201 can rotate, and a guide groove 102 is provided on the tube wall of the storage tube 1. The guide groove 102 and the clamping groove 101 are arranged side by side along the circumference of the storage tube 1. One end of the guide groove 102 is connected to the clamping groove 101, and the other end extends to the end face of the storage tube 1, and the end face of the storage tube 1 is far away from the movable member 201. Specifically, in the locked state, the movable member 201 is pressed to move the clamping member 202 along the guide groove 102. When the clamping member 202 moves to the clamping groove 101, the movable member 201 is rotated to make the clamping member 202 screwed into the clamping groove 101. The clamping member 202 and the clamping groove 101 form a clamping structure to limit the movement of the movable member 201. In the unlocked state, the movable member 201 is directly rotated in the opposite direction or the movable member 201 is pressed first and then rotated in the opposite direction, so that the engaging member 202 moves from the engaging slot 101 into the guiding slot 102. At this time, the elastic member 203 drives the movable member 201 and the connected engaging member 202 to move to the other end of the engaging slot 101, and the movable member 201 is no longer restricted.

[0029] In one embodiment, in order to limit the moving range of the movable member 201 and stabilize the moving path of the movable member 201, as shown in FIG. Figure 1 and Figure 2 As shown, the self-locking fixing device 2 further includes a guide rod 204 and a pressure cover 206. The first end of the guide rod 204 is connected to the pressure cover 206, and the second end is fixed. The movable member 201 is sleeved on the guide rod 204 and has a tendency to move toward the pressure cover 206. The pressure cover 206 is used to limit the movable member 201 from being separated from the guide rod 204. The pressure cover 206 is a limiting structure. When the movable member 201 moves to the end of the guide rod 204, the pressure cover 206 can block the movable member 201 and prevent it from being separated from the guide rod 204.

[0030] In one embodiment, if Figure 2As shown, a through coupling hole 2011 is provided in the axial direction of the movable part 201, the cross-sectional size of the pressure cover 206 is larger than the cross-sectional size of the coupling hole 2011, a boss 2061 is provided at the end of the pressure cover 206 close to the movable part 201, and a first groove 2012 is provided on the side of the coupling hole 2011. The first groove 2012 faces the boss 2061, and one end is located on the end surface of the movable part 201, and the other end extends along the axial direction of the movable part 201 and does not penetrate the movable part 201. When the movable part 201 moves to the pressure cover 206, the boss 2061 can form a clamping structure with the first groove 2012, thereby limiting the rotation of the movable part 201, so as to fix the position of the movable part 201 in the unlocked state. Specifically, in the unlocked state, the elastic member 203 drives the movable member 201 to approach the pressure cover 206, the first groove 2012 follows the movable member 201 to approach the pressure cover 206, the boss 2061 extends into the first groove 2012 and forms a clamping structure, thereby fixing the position of the movable member 201. In the locked state, the movable member 201 is away from the pressure cover 206, the first groove 2012 is away from the boss 2061, the clamping member 202 is located in the clamping groove 101 to form a clamping structure, thereby fixing the position of the movable member 201.

[0031] In one embodiment, the pressure cover 206 is fixedly connected to the guide rod 204 by means of screws 211. In order to prevent the pressure cover 206 from rotating randomly after being connected to the guide rod 204, as shown in FIG. Figure 2 As shown, a second groove 2041 is formed on the end surface of the first end of the guide rod 204, and a boss 2061 is arranged opposite to the second groove 2041 and extends into the second groove 2041. The boss 2061 extends from the second groove 2041 along the radial direction of the guide rod 204, that is, only the inner part of the boss 2061 is combined with the second groove 2041. According to the above embodiment, the boss 2061 can form a clamping structure after being combined with the second groove 2041. At this time, since the guide rod 204 cannot rotate, the pressure cover 206 connected to its end cannot rotate either, so that the positions of the pressure cover 206 and the boss 2061 after installation are relatively fixed, preventing the pressure cover 206 from affecting the combination of the boss 2061 and the first groove 2012 after the rotation of the pressure cover 206.

[0032] Furthermore, in order to improve the fixing effect of the boss 2061 and the first groove 2012 on the movable part 201 and the fixing effect of the second groove 2041 on the pressure cover 206, the first groove 2012 is provided with two pairs, and the first groove 2012, the second groove 2041 and the boss 2061 are respectively provided with two and are symmetrically arranged.

[0033] In one embodiment, if Figure 2As shown, the self-locking fixing device 2 further includes a connecting portion 212 and a latch 205 for fixing the guide rod 204. The connecting portion 212 is provided with an insertion hole, and the second end of the guide rod 204 is inserted into the insertion hole. The latch 205 is inserted into the connecting portion 212 and the second end of the guide rod 204 along the radial direction of the guide rod 204. The position of the connecting portion 212 is fixed, and it can be set on the functional element 3 in the storage tube 1, so as to realize the connection between the self-locking fixing device 2 and the functional element 3.

[0034] like Figure 1 As shown, in order to facilitate the operator to rotate the movable part 201, the self-locking fixing device 2 further includes a connecting support 207 and a handle 208, one end of the connecting support 207 is connected to the movable part 201, and the other end is connected to the handle 208. The handle 208 should have a certain size, especially in the axial direction of the movable part 201, the length of the handle 208 should be large enough to extend out of the storage tube 1, so that the operator can rotate the movable part 201 outside the storage tube 1.

[0035] Further, in order to facilitate the rotation of the handle 208, the handle 208 and the connecting support 207 are coaxially arranged with the movable member 201. In addition, in the radial direction of the movable member 201, the handle 208 should also have a certain width so that the operator can hold the handle 208 tightly and reduce the difficulty of rotating the handle 208.

[0036] In one embodiment, if Figure 3 As shown, the self-locking fixing device 2 further includes a gasket 210, which is embedded in the movable part 201 and abuts against the elastic part 203, and the gasket 210 and the movable part 201 can rotate relative to each other. After the gasket 210 is provided, the movable part 201 can be prevented from contacting with the elastic part 203, the difficulty of rotating the movable part 201 can be reduced, and the elastic part 203 can be prevented from rotating together when the movable part 201 is rotated.

[0037] In one embodiment, a protective cover 209 is installed at the other end of the handle 208 .

[0038] like Figure 4 As shown, a reducer 4 can be provided at the end of the storage tube 1, and the connection between the reducer 4 and the storage tube 1 is the minimum cross-sectional dimension of the reducer 4, so as to guide the self-locking fixing device 2 and the functional element 3 into the storage tube 1 when installing them.

[0039] The self-locking fixing device provided by the embodiment of the utility model can be a universal device, which can be used not only to fix the functional elements 3 underwater, but also to fix the functional elements 3 in other environments.

[0040] It is obvious to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the present invention can be implemented in other specific forms without departing from the spirit or essential features of the present invention. Therefore, the embodiments should be considered exemplary and non-restrictive from any point of view, and the scope of the present invention is defined by the appended claims rather than the above description, and it is intended that all changes falling within the meaning and scope of the equivalent elements of the claims be included in the present invention. Any reference numeral in a claim should not be considered as limiting the claim to which it relates.

[0041] In addition, it should be understood that although the present specification is described according to implementation modes, not every implementation mode contains only one independent technical solution. This narrative method of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each implementation mode may also be appropriately combined to form other implementation modes that can be understood by those skilled in the art.

Claims

1. A self-locking fixing device (2) which is detachably mounted in a storage tube (1), wherein a functional element (3) is housed in the storage tube (1), and the self-locking fixing device (2) is used to restrict the functional element (3) from escaping from the storage tube (1), characterized in that: The self-locking fixing device (2) comprises a movable part (201), a clamping part (202) and an elastic part (203); the clamping part (202) is arranged on the movable part (201); the clamping part (202) is used to connect with the storage tube (1) to lock the movable part (201) in the storage tube (1); one end of the elastic part (203) is connected to the movable part (201); the elastic part (203) has a tendency to drive the movable part (201) away from the storage tube (1).

2. The self-locking fixing device (2) according to claim 1, characterized in that: The tube wall of the storage tube (1) is provided with a penetrating clamping groove (101), and the self-locking fixing device (2) has a locked state and an unlocked state; In the locked state, the elastic member (203) presses the clamping member (202) into the clamping groove (101) along the axial direction of the storage tube (1), thereby restricting the movable member (201) from moving out of the storage tube (1); In the unlocked state, the locking member (202) is disengaged from the locking slot (101).

3. The self-locking fixing device (2) according to claim 2, characterized in that: The movable member (201) is rotatable, a guide groove (102) is provided on the tube wall of the storage tube (1), the guide groove (102) and the clamping groove (101) are arranged side by side along the circumference of the storage tube (1), one end of the guide groove (102) is connected to the clamping groove (101), and the other end extends to the end face of the storage tube (1), and the end face of the storage tube (1) is far away from the movable member (201); In a locked state, the clamping member (202) moves from the guide groove (102) into the clamping groove (101); In the unlocked state, the clamping member (202) moves from the clamping slot (101) into the guiding slot (102).

4. The self-locking fixing device (2) according to claim 1, characterized in that: It also includes a guide rod (204) and a pressure cover (206), wherein the first end of the guide rod (204) is connected to the pressure cover (206) and the second end is fixed, the movable part (201) is sleeved on the guide rod (204) and has a tendency to move toward the pressure cover (206), and the pressure cover (206) is used to limit the movable part (201) from detaching from the guide rod (204).

5. The self-locking fixing device (2) according to claim 4, characterized in that: The movable part (201) is provided with a penetrating coupling hole (2011) in the axial direction, the cross-sectional dimension of the pressure cover (206) is larger than the cross-sectional dimension of the coupling hole (2011), the end of the pressure cover (206) close to the movable part (201) is provided with a boss (2061), the side of the coupling hole (2011) is provided with a first connected groove (2012), the first groove (2012) faces the boss (2061), one end of the first groove (2012) is located on the end surface of the movable part (201), and the other end extends along the axial direction of the movable part (201) and does not penetrate the movable part (201), and the self-locking fixing device (2) has a locked state and an unlocked state; In the locked state, the movable member (201) is away from the pressure cover (206), so that the first groove (2012) is away from the boss (2061); In the unlocked state, the first groove (2012) follows the movable member (201) to approach the pressure cover (206), and the boss (2061) extends into the first groove (2012).

6. The self-locking fixing device (2) according to claim 5, characterized in that: The pressure cover (206) is fixedly connected to the guide rod (204) by means of a screw (211); a second groove (2041) is provided on the end surface of the first end of the guide rod (204); the boss (2061) is arranged opposite to the second groove (2041) and extends into the second groove (2041); the boss (2061) extends out from the second groove (2041) along the radial direction of the guide rod (204).

7. The self-locking fixing device (2) according to claim 6, characterized in that: The first groove (2012), the second groove (2041) and the boss (2061) are respectively provided with two and are symmetrically arranged.

8. The self-locking fixing device (2) according to claim 4, characterized in that: It also includes a connecting portion (212) and a latch (205) for fixing the guide rod (204); the connecting portion (212) is provided with a plug hole, the second end of the guide rod (204) is inserted into the plug hole, and the latch (205) is inserted into the connecting portion (212) and the second end of the guide rod (204) along the radial direction of the guide rod (204).

9. The self-locking fixing device (2) according to claim 4, characterized in that: It also includes a connecting support (207) and a handle (208) coaxially arranged with the movable part (201), one end of the connecting support (207) being connected to the movable part (201), and the other end being connected to the handle (208).

10. The self-locking fixing device (2) according to claim 1, characterized in that: It also includes a gasket (210), wherein the gasket (210) is embedded in the movable part (201) and abuts against the elastic part (203).

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