CN216532231U - Clamping device and power distribution information transmission device - Google Patents

Abstract

The utility model provides a clamping device and a power distribution information transmission device, which comprise a control piece, a clamping piece and a limiting seat, wherein the control piece is provided with a first clamping hole and a second clamping hole; the control piece is connected with the limiting seat, and the clamping piece is arranged on the limiting seat; the control piece can control the position of the limiting seat, so that the clamping piece on the limiting seat at least comprises a stressed inwards-contracting state and an unstressed protruding state. The problem of current distribution information transmission device's components of a whole that can function independently when the equipment assembly complex operation, connection stability is poor is solved. The split power distribution information transmission device is quickly clamped through the clamping device, the clamping piece can be controlled to retract only by the stress of the control piece when the split power distribution information transmission device is assembled, the split power distribution information transmission device is quickly assembled and combined, the clamping piece can be in a protruding clamping state without the stress of the control piece after the split power distribution information transmission device is assembled in place, the split power distribution information transmission device is clamped and assembled and fixed, the operation is simple and quick, and the stability is good.

Description

Clamping device and power distribution information transmission device

Technical Field

The utility model belongs to the technical field of electric power and electrical equipment, and particularly relates to a clamping device and a power distribution information transmission device.

Background

With the rapid development of scientific and technological technology, various electrical and electronic devices are increasing day by day, and the related devices for transmission and monitoring of power distribution information in a signal machine room of a railway have a development trend of refinement and intellectualization.

In order to avoid the influence of lightning current on equipment along the railway, intelligent power distribution equipment is required to be arranged in a signal machine room along the railway to monitor and protect a power distribution environment, and intelligent power distribution information transmission equipment such as a terminal and a concentrator is used as a core device, so that the intelligent power distribution information transmission equipment has better assembly performance and meets the requirements of quick assembly and maintenance of the whole product.

When the conventional power distribution information conveying equipment is assembled, the split parts are assembled only in a simple fixed connection mode of bolts and the like, the assembling operation is complicated, the reliability is poor, and the stability of connection among the parts cannot be ensured.

SUMMERY OF THE UTILITY MODEL

The utility model aims to overcome the defects in the prior art and solve the problems of complex operation and poor connection stability of the split type of the conventional power distribution information transmission equipment during assembly.

In order to achieve the purpose, the utility model provides a clamping device which comprises a control piece, a clamping piece and a limiting seat;

the control piece is connected with the limiting seat, and the clamping piece is arranged on the limiting seat;

the control piece can control the position of the limiting seat, so that the clamping piece on the limiting seat at least comprises a limiting seat which retracts inside under stress and protrudes out of the limiting seat without stress.

Furthermore, the control piece comprises a control button part, the control button part is arranged on one side of the limiting seat so as to press the control button part, and the control button part can control the inward shrinkage and limiting of the clamping piece on the limiting seat.

Furthermore, a friction part is arranged on the control button part and used for increasing the friction coefficient of the control button part.

Optionally, the clamping piece comprises a clamping portion and an elastic portion;

the clamping part is arranged at one end of the limiting seat, and the clamping part can protrude out of the limiting seat;

one end of the elastic part is fixed on the limiting seat, and the other end of the elastic part can be compressed and abutted against the side wall of the limiting seat when the control part is pressed.

Optionally, the size of the clamping portion along the force-bearing direction of the control member is gradually increased.

Further, the elastic part includes a first spring and a second spring;

the first spring and the second spring are oppositely arranged.

Optionally, the limiting seat comprises a first limiting part and a second limiting part;

the clamping portion can be limited in the first limiting portion, and the elastic portion can be limited in the second limiting portion.

Optionally, the first limiting portion includes a limiting groove, and the clamping portion can move in the limiting groove;

the second limiting part comprises a limiting cavity, and the elastic part is arranged in the limiting cavity.

The utility model provides a power distribution information transmission device, which comprises a clamping device and a first split device, wherein the clamping device is connected with the first split device;

the first split device is provided with a groove and a clamping groove;

the control piece protrudes out of the groove, and the clamping piece can protrude out of the clamping groove.

The device also comprises a second split device;

the first split device and the second split device are sleeved and spliced;

the clamping grooves comprise a first clamping groove and a second clamping groove, the second split device comprises a third clamping groove and a fourth clamping groove, the first clamping groove and the third clamping groove are correspondingly arranged, and the second clamping groove and the fourth clamping groove are correspondingly arranged;

the clamping piece comprises a first clamping part and a second clamping part;

first joint portion can bulge first joint groove and third joint groove, second joint portion can bulge second joint groove and fourth joint groove.

The utility model provides a clamping device and a power distribution information transmission device.A control piece is connected with a limiting seat, and a clamping piece is arranged on the limiting seat; the control piece can control the position of the limiting seat, so that the clamping piece on the limiting seat at least comprises a stressed inward-contracting state and an unstressed protruding state. The split-type power distribution information transmission device is quickly clamped through the clamping device, the clamping of the split-type power distribution information transmission device is realized only by the aid of stress of the control piece during assembly, the control piece can be controlled to retract inwards, the split-type power distribution information transmission device is quickly assembled in a matched mode, after the assembly is in place, stress on the control piece is removed, the clamping piece can be clamped in a protruding mode without stress on the control piece, the split-type power distribution information transmission device is clamped and assembled, operation is simple and quick, and stability is good.

Drawings

FIG. 1 is a top view of a latch device according to an embodiment of the present invention in a retracted state;

FIG. 2 is a top view of a latch according to an embodiment of the present invention in a protruding state;

FIG. 3 is a schematic structural diagram of a clamping device according to an embodiment of the present invention;

FIG. 4 is a schematic internal view of a clamping device according to an embodiment of the present invention;

fig. 5 is a side view of a distribution information transmission device according to a second embodiment of the present invention;

fig. 6 is a front view of a power distribution information transmission device according to a second embodiment of the present invention;

fig. 7 is a schematic structural diagram of a power distribution information transmission apparatus according to a second embodiment of the present invention;

fig. 8 is a schematic structural diagram of a first split device according to a second embodiment of the present invention;

fig. 9 is a schematic structural diagram of a second split device according to a second embodiment of the present invention.

1. A control member; 2. a clamping piece; 3. a limiting seat; 4. a first split device; 5. a second body-splitting device; 11. a control button part; 12. a friction portion; 21. a clamping part; 22. an elastic portion; 23. a first clamping part; 24. a second clamping part; 31. a first limiting part; 32. a second limiting part; 41. a groove; 42. a clamping groove; 51. a third clamping groove; 52. a fourth clamping groove; 221. a first spring; 222. a second spring; 311. a limiting groove; 321. a limiting cavity; 421. a first clamping groove; 422. a second clamping groove.

Detailed Description

The following describes the latch device and the power distribution information transmission device in detail with reference to the accompanying drawings.

Example one

As shown in fig. 1 to 6, an embodiment of the present invention provides a clamping device, which includes a control member 1, a clamping member 2, and a limiting seat 3; the control piece 1 is connected with the limiting seat 3, and the clamping piece 2 is arranged on the limiting seat 3; the control piece 1 can control the position of the limiting seat 3, so that the clamping piece 2 on the limiting seat 3 at least comprises a stressed inward-contracting state and an unstressed protruding state.

Specifically, the split of the power distribution information transmission device is quickly clamped through the clamping device, only when the split power distribution information transmission device is assembled, the control of the inward shrinkage of the clamping piece 2 can be achieved through the stress of the control piece 1, the split power distribution information transmission device is quickly matched and assembled, after the split power distribution information transmission device is assembled in place, the stress on the control piece 1 is removed, the clamping piece 2 protrudes out of the control piece 1 without stress of the control piece 1, the split power distribution information transmission device is clamped and assembled, operation is simple and quick, and stability is good.

Wherein, joint spare 2 on can controlling spacing seat 3 through clamping device's control 1 is in the state of contracting or the bulge state in, also can make joint spare 2 be in the state of contracting in when the installation, avoid joint spare 2 to cause the interference and receive wearing and tearing scheduling problem when the equipment, after the corresponding equipment relation with between the part is decided well, remove the external force to control 1, also joint spare 2 can be in the bulge state, and then realize the joint effect.

The control piece 1 can be arranged on the outer side of one split device and can be arranged at a position which is not matched and assembled with the other split device, and interference of the control piece 1 on the assembly of the two split devices is avoided.

Wherein, joint spare 2 and spacing seat 3 set up in the inboard of components of a whole that can function independently device, can avoid joint spare 2 and spacing seat 3 to cause the interference when the equipment of two components of a whole that can function independently devices, can realize again that control 1 atress drives spacing seat 3 and when removing, joint spare 2 is at the inboard compression of components of a whole that can function independently device, when removing the atress, joint spare 2 can bulge the components of a whole that can function independently device again, realizes the joint between joint spare 2 and the components of a whole that can function independently device.

Further, the control member 1 includes a control button portion 11, the control button portion 11 is disposed on one side of the limiting seat 3, so that the control button portion 11 is pressed, and the control button portion 11 can control the inward-contraction limiting of the clamping member 2 on the limiting seat 3.

Specifically, through pressing control button portion 11, exert external force to control button portion 11 to make control button portion 11 drive joint spare 2 on the spacing seat 3 and move the internal contraction, and then realize that components of a whole that can function independently device and another components of a whole that can function independently device cooperate the assembly, restriction seat and joint spare 2 can not cause the interference to the installation operation, after a components of a whole that can function independently device and another components of a whole that can function independently device are installed in place, remove the external force of exerting control button portion 11, realize 2 protruding joint states of joint spare.

Wherein, the control button part 11 is arranged at the outer side of the shell of the split device, and the limit seat 3 arranged at the inner side of the shell of the split device and the clamping piece 2 on the limit seat 3 are controlled at the outer side of the shell of the split device, thereby realizing the control

Further, a friction part 12 is disposed on the control button part 11, and the friction part 12 is used for increasing the friction coefficient of the control button part 11.

Specifically, the friction part 12 is arranged on the control button part 11, so that the external force is applied to the control button part 11 more conveniently and more conveniently, and the operation effect is improved.

Wherein, the friction part 12 can be a friction increasing protrusion, which realizes increasing the friction coefficient of the surface of the control button part 11.

The friction part 12 may be a friction increasing rubber sleeve to increase the friction coefficient of the surface of the control button part 11.

Optionally, the clip member 2 includes a clip portion 21 and an elastic portion 22; the clamping part 21 is arranged at one end of the limiting seat 3, and the clamping part 21 can protrude out of the limiting seat 3; one end of the elastic part 22 is fixed on the limiting seat 3, and the other end of the elastic part 22 can be compressed and abutted against the side wall of the limiting seat 3 when the control part 1 is pressed.

Specifically, the clamping portion 21 is arranged at the front end of the limiting seat 3, so that the clamping portion 21 can protrude out of the limiting seat 3 under the condition of no stress; the front end of the elastic part 22 is fixed on the limiting seat 3, and the tail end of the elastic part can be compressed and abutted against the side wall of the limiting seat 3 when the control part 1 is pressed; when two components of a whole that can function independently devices are installed, through installing clamping device on one of them components of a whole that can function independently device, that is clamping piece 2 and restriction seat set up in a components of a whole that can function independently device inboard, control 1 sets up the outside at the components of a whole that can function independently device, through applying external force to control 1 in the outside, elastic component 22 is in the compression state when spacing seat 3 removes, store reverse compression elastic force, clamping piece 2 contracts in the components of a whole that can function independently device inboard, at this moment carry out the cooperation equipment between two components of a whole that can function independently devices, after two components of a whole that can function independently devices cooperation equipment are accomplished, remove the external force applied to control 1, because the elastic force that elastic component 22 stores moves to the opposite direction of application of force, drive spacing seat 3 and remove to the border of components of a whole that can function independently device, that is clamping piece 2 can bulge the components of a whole that can function independently device fast promptly, and then clamping piece 2 carries out the joint equipment with two components of a whole that can function independently devices.

Wherein, control 1 sets up the one end in the components of a whole that can function independently device outside, is connected with hug closely spacing seat 3 that the components of a whole that can function independently inboard setting, when guaranteeing to exert external force and remove external force to control 1, spacing seat 3 homoenergetic carries out synchronous motion rather than simultaneously.

Wherein, control 1 can fix with the components of a whole that can function independently device through the bolt after two components of a whole that can function independently devices joint target in place, avoids the maloperation to cause and connects unstable problem between the components of a whole that can function independently device.

Alternatively, the size of the clamping portion 21 along the force-bearing direction of the control member 1 is gradually increased.

Specifically, the size of the clamping portion 21 is gradually increased along the stress direction of the control member 1, so that when external force is applied to the control member 1, the clamping portion 21 with the gradually increased size can quickly and reliably enter the split device along with the gradual increase of the external force; when the external force applied to the control member 1 is removed, the snap-in portions 21, which are gradually reduced in size, can stably protrude out of the split devices.

Further, the elastic part 22 includes a first spring 221 and a second spring 222; the first spring 221 and the second spring 222 are disposed opposite to each other.

Specifically, through setting up relative first spring 221 and the second spring 222 that sets up, realize can more even storage elastic force when the exogenic action that exerts, removing exogenic action, reaction that can be more even is spacing seat 3, also takes to joint spare 2 and can carry out the joint more stably.

Wherein, first spring 221 and second spring 222 all can follow spacing seat 3 moving direction equipartition setting, realize that the atress is more stable, improve the installation effect.

Optionally, the limiting seat 3 includes a first limiting portion 31 and a second limiting portion 32; the clamping portion 21 can be limited in the first limiting portion 31, and the elastic portion 22 can be limited in the second limiting portion 32.

The clamping portion 21 can limit the position in the first limiting portion 31, that is, when external force is applied, the clamping portion 21 can be limited by the first limiting portion 31, so that external force loss caused by excessive external force application is avoided; when removing external force, joint portion 21 also can be injectd by first spacing portion 31, avoids reverse elasticity too big, causes the damage to the device.

The elastic portion 22 can be limited in the second limiting portion 32, that is, when an external force is applied, the elastic portion 22 can be in a compressed state to a maximum compressed state under the limitation of the second limiting portion 32, and when the external force is removed, the elastic portion 22 can be in an extended state to a maximum extended state under the limitation of the second limiting portion 32.

Optionally, the first limiting portion 31 includes a limiting groove 311, and the clamping portion 21 can move in the limiting groove 311; the second position-limiting part 32 includes a position-limiting cavity 321, and the elastic part 22 is disposed in the position-limiting cavity 321.

Specifically, the limiting groove 311 is arranged along the moving direction of the limiting seat 3, the length of the limiting groove 311 is greater than that of the clamping portion 21, and at least the length of the limiting groove 311 is not less than that of the clamping portion 21, so that when external force is applied, the clamping member 2 can completely move along the limiting groove 311 when moving inwards; the limiting cavity 321 is also arranged along the moving direction of the limiting seat 3, the length of the limiting cavity 321 is substantially consistent with that of the elastic part 22, and at least the length of the limiting cavity 321 is not less than the extended length of the elastic part 22, so that when the external force is removed, the elastic part 22 can completely release the reverse acting force in the limiting cavity.

The limiting groove 311 and the limiting cavity 321 can be realized by fastening the upper cover plate and the limiting seat 3; two joint portions 21 set up respectively in the left and right sides of spacing seat 3, and two elastic component 22 set up respectively in the intermediate position of spacing seat 3, through set up two notch formation spacing grooves 311 in the left and right sides symmetry of upper cover plate, at the upper cover with spacing seat 3 between form spacing chamber.

Example two

The utility model provides a power distribution information transmission device, which comprises a clamping device and a first split device 4, wherein the clamping device is connected with the first split device; the first split device 4 is provided with a groove 41 and a clamping groove 42; the control member 1 protrudes out of the groove 41, and the clamping member 2 can protrude out of the clamping groove 42.

Specifically, install clamping device on first components of a whole that can function independently device 4, also install the tongue that control 1 protrusion first components of a whole that can function independently device 4 on, spacing seat 3 hugs closely the inboard installation of first components of a whole that can function independently device 4, also control 1 and clamping 2 install at first components of a whole that can function independently device 4 inboardly.

The control piece 1 outside the first split device 4 is acted by an applied external force to control the limiting seat 3 to move inwards, namely the clamping piece 2 moves inwards at the position of the clamping groove 42 until the clamping piece 2 is completely positioned in the clamping groove 42, namely completely positioned inside the first split device 4; when removing the exogenic action, because the reaction force in the elasticity that elastic part 22 on the spacing seat 3 was stored makes spacing seat 3 can outwards remove, also drives joint spare 2 and outwards removes for spacing seat 3, until joint spare 2 bulges joint groove 42 completely, realizes dividing body device 5 with the second and carries out the joint and be connected.

It is worth mentioning that the clamping devices can be respectively and symmetrically arranged on the first split device 4, when external force is applied, the external force can be applied to the clamping devices on two sides simultaneously, the stress stability is ensured, and the stability of connection between the first split device 4 and the second split device 5 is ensured.

Optionally, a second split device 5 is further included; the first split device 4 and the second split device 5 are sleeved and inserted; the clamping groove 42 comprises a first clamping groove 421 and a second clamping groove 422, the second split device 5 comprises a third clamping groove 51 and a fourth clamping groove 52, the first clamping groove 421 and the third clamping groove 51 are correspondingly arranged, and the second clamping groove 422 and the fourth clamping groove 52 are correspondingly arranged; the clip member 2 includes a first clip portion 23 and a second clip portion 24; the first catching portion 23 can protrude the first catching groove 421 and the third catching groove 51, and the second catching portion 24 can protrude the second catching groove 422 and the fourth catching groove 52.

Specifically, through being provided with first joint groove 421 and second joint groove 422 on first components of a whole that can function independently device 4, be provided with third joint groove 51 and fourth joint groove 52 on second components of a whole that can function independently device 5, realize that first joint machine portion and second joint portion 24 on spacing seat 3 can carry out two-way joint, guarantee that the joint is more stable, improve the joint effect.

Wherein, when first components of a whole that can function independently device 4 and second components of a whole that can function independently device 5 cup joint the joint, also exert external force for control 1 to make joint 2 be in the indent state, cup joint the back in place at first components of a whole that can function independently device 4 and second components of a whole that can function independently device 5, remove the external force of exerting for control 1, also that joint 2 is in the bulge state, also that first components of a whole that can function independently device 4 and second components of a whole that can function independently device 5 carry out the joint once more, realize dual fixed, connection stability is good.

In the installation process of the power distribution information transmission device, firstly, the control piece 1 at the outer side of the first split device 4 is subjected to the action of applied external force to control the limiting seat 3 in the first split device 4 to move inwards, namely, the clamping piece 2 moves inwards at the position of the clamping groove 42 until the clamping piece 2 is completely positioned in the clamping groove 42, namely, completely positioned at the inner side of the first split device 4; then, the first split device 4 is sleeved in the second split device 5, and the first split device 4 and the second split device 5 are ensured to be inserted in place; finally, remove the exogenic action, because the reaction force in the elasticity that elastic part 22 on spacing seat 3 stored makes spacing seat 3 can outwards remove, also drives joint spare 2 and outwards removes for spacing seat 3, until joint spare 2 bulges joint groove 42 and second parted device 5 completely, the realization is connected with second parted device 5 carries out the joint.

Wherein, the first split device 4 can be a host, and the second split device 5 can be a base; a host groove is formed in the base, and the host can be located in the host groove; the outer side wall of the host is provided with a first connecting piece and a first limiting piece; the inner side wall of the base is provided with a second connecting piece and a second limiting piece, and the outer side wall of the base is provided with a fixing piece; the first connecting piece is connected with the second connecting piece so as to enable the host to be fixedly connected with the base; the first limiting piece is connected with the second limiting piece so that the host is in limiting connection with the base; the fixing piece is used for fixedly connecting the distribution information equipment with a preset mounting surface.

Concretely, the second connecting piece of the inside wall in the host computer groove through the first connecting piece of host computer lateral wall and base is connected the host computer with the base fixedly, it is simple and convenient to connect fixedly, spacing fixed connection is carried out to host computer and base to first locating part of rethread and second locating part, it is multiple fixed spacing, guarantee good connection reliability between host computer and the base, and assembly operation is simple and convenient, realize carrying out erection joint with holistic distribution information transmission device and installation face through the mounting, it is firm swift to realize whole assembly, high work efficiency.

The base can protect the host machine positioned in the host machine groove, and the host machine is prevented from being influenced by the external environment; and adopt the mode of all in pedestal connection with external connection line, realize when overhauing whole equipment, only need with host computer and base dismantlement, overhaul the host computer can, avoid need dismantling operations such as connecting wire, improve maintenance efficiency.

When the installation is carried out, the host can be dually fixed by only installing the host in the host groove of the base, namely the plug-in connection of the first connecting piece and the second connecting piece, the limiting fixed connection of the first limiting piece and the second limiting piece, the assembly operation is simple and convenient, and the working efficiency is improved.

Wherein, through the mounting that sets up at the lateral wall of base, realize that the mounting can carry out fixed mounting with the distribution information transmission device after the unit mount with the installation face, the unit mount is simple convenient, realizes the distribution information transmission device's of assembled installation work fast, improves work efficiency.

Optionally, the first connecting piece is arranged on the bottom end face of the main machine facing the base, and the second connecting piece is arranged on the inner bottom end face of the base.

Specifically, through setting up the first connecting piece on the bottom face of host computer orientation base and setting up the second connecting piece plug connection on the inner bottom terminal surface of base, realize cup jointing the host computer to the host computer inslot, when the host computer enters into the host computer groove completely, exert external force in the side of the outside of host computer, can realize firmly fixing the host computer in the base, the grafting effect is better, is favorable to exerting the convenience of external force.

Specifically, the first connecting piece can be a jack or a pin, the second connecting piece can be a pin or a jack, and the first connecting piece and the second connecting piece can be connected in an adaptive manner.

Wherein, the quantity of first connecting piece and second connecting piece can be a plurality of, is favorable to improving the grafting steadiness between base and the host computer.

The bottom end face of the host towards the base is provided with a first inner groove, and the first connecting piece is positioned in the first inner groove; through setting up first connecting piece in the first inner groovy on the terminal surface of host computer orientation base, avoid first connecting piece because outside protrusion when carrying, cause the damage and carry inconvenient problem to with first connecting piece setting in first inner groovy, can guarantee that host computer and grafting position between target in place more accurate. A second inner groove is formed in the bottom end face of the inner side of the base, and a second connecting piece is located in the second inner groove; through setting up the second connecting piece in the second recess of the inboard bottom face of base, avoid the second connecting piece when carrying because outside protrusion sets up, cause the damage and carry inconvenient problem to set up the second connecting piece in the second inner groovy, can guarantee that host computer and grafting position between target in place more accurate.

Furthermore, the first limiting piece is arranged on the side wall of the host, and the first limiting piece extends along the bottom end face of the host in the installation direction of the host and the base; the second locating part is arranged in the host slot, and the second locating part can be in limiting connection with the first locating part in the installation direction.

It is worth mentioning that the host and the base are limited in the vertical direction by the first connecting piece and the second connecting piece, and the host and the base are limited in the horizontal direction by the first limiting piece and the second limiting piece, so that the reliability of connection between the host and the base is ensured.

In summary, the present invention provides a clamping device and a power distribution information transmission device, wherein a control member 1 is connected to a limiting seat 3, and a clamping member 2 is disposed on the limiting seat 3; the control piece 1 can control the position of the limiting seat 3, so that the clamping piece 2 on the limiting seat 3 at least comprises a stressed inward-contracting state and an unstressed protruding state. The split of the power distribution information transmission device is quickly clamped through the clamping device, the control piece 2 can be controlled to retract only by the stress of the control piece 1 during assembly, the split device is quickly matched and assembled, after the assembly is in place, the stress on the control piece 1 is removed, the clamping state of the clamping piece 2 protruding out can be realized by the control piece 1 without stress, the split device is clamped and assembled, the operation is simple and quick, and the stability is good.

The above description is only an embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art can easily conceive of changes or substitutions within the technical scope of the present invention, and all such changes or substitutions are included in the scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims.

Claims (10)

1. A clamping device is characterized by comprising a control piece (1), a clamping piece (2) and a limiting seat (3);

the control piece (1) is connected with the limiting seat (3), and the clamping piece (2) is arranged on the limiting seat (3);

the control piece (1) can control the position of the limiting seat (3) so that the clamping piece (2) on the limiting seat (3) at least comprises a stressed inner side which is contracted in the limiting seat (3) and an unstressed protruded limiting seat (3).

2. A clamping device according to claim 1, characterized in that the control member (1) comprises a control button part (11), the control button part (11) is arranged at one side of the limiting seat (3) so as to press the control button part (11), and the control button part (11) can control the inward shrinkage limiting of the clamping member (2) on the limiting seat (3).

3. A clamping device according to claim 2, characterised in that the control button part (11) is provided with a friction part (12), which friction part (12) is arranged to increase the friction coefficient of the control button part (11).

4. Clamping device according to claim 1, characterised in that the clamping element (2) comprises a clamping portion (21) and an elastic portion (22);

the clamping part (21) is arranged at one end of the limiting seat (3), and the clamping part (21) can protrude out of the limiting seat (3);

one end of the elastic part (22) is fixed on the limiting seat (3), and the other end of the elastic part (22) can be compressed and abutted against the side wall of the limiting seat (3) when the control part (1) is pressed.

5. A clamping device according to claim 4, characterised in that the clamping portion (21) is of progressively larger size in the direction of force applied by the control member (1).

6. A card-connecting device according to claim 4, characterized in that the elastic portion (22) comprises a first spring (221) and a second spring (222);

the first spring (221) and the second spring (222) are arranged oppositely.

7. A clamping device according to claim 4, characterised in that the stop (3) comprises a first stop (31) and a second stop (32);

the clamping portion (21) can be limited in the first limiting portion (31), and the elastic portion (22) can be limited in the second limiting portion (32).

8. A clamping device according to claim 7, characterized in that the first limiting part (31) comprises a limiting groove (311), and the clamping part (21) can move in the limiting groove;

the second limiting part (32) comprises a limiting cavity (321), and the elastic part (22) is arranged in the limiting cavity.

9. An electrical distribution information transmission device, characterized in that it comprises a clamping device according to any one of claims 1-8 and a first splitting device (4);

the first split device (4) is provided with a groove (41) and a clamping groove (42);

the control piece (1) protrudes out of the groove (41), and the clamping piece (2) can protrude out of the clamping groove (42).

10. The distribution information transmission device according to claim 9, further comprising a second split device (5);

the first split device (4) and the second split device (5) are sleeved and spliced;

the clamping groove (42) comprises a first clamping groove (421) and a second clamping groove (422), the second split device (5) comprises a third clamping groove (51) and a fourth clamping groove (52), the first clamping groove (421) and the third clamping groove (51) are correspondingly arranged, and the second clamping groove (422) and the fourth clamping groove (52) are correspondingly arranged;

the clamping piece (2) comprises a first clamping part (23) and a second clamping part (24);

first joint portion (23) can protrude first joint groove (421) and third joint groove (51), second joint portion (24) can protrude second joint groove (422) and fourth joint groove (52).

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