Negative pressure generating device and physiotherapy equipment

Abstract

The utility model discloses a negative pressure generating device and physiotherapy equipment, and relates to the technical field of negative pressure generating equipment.The negative pressure generating device comprises a main body, a piston piece and a driving assembly, and the main body comprises a negative pressure cavity; the piston piece is provided with a piston part and a connecting piece connected to the piston part; the driving assembly comprises a first handheld piece and a second handheld piece, the first handheld piece is connected with the main body, one end of the second handheld piece is rotationally connected with the main body, and the second handheld piece is connected with the connecting piece; according to the configuration, the second handheld piece moves relative to the main body so as to drive the piston part to move in the negative pressure cavity, and negative pressure is generated in the negative pressure cavity. According to the technical scheme provided by the utility model, the use experience of a user can be improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to negative pressure generating equipment technical field, especially a kind of negative pressure generating device and physiotherapy equipment. BACKGROUND

[0002] In the field of medical equipment, the field of vacuum technology and the field of portable equipment, negative pressure generating device plays a vital role. The device meets the diversified medical and industrial needs by generating negative pressure. For example, in the medical field, negative pressure generating device can be used for attracting body fluid, promoting blood circulation, providing respiratory support and other key applications. In the industrial field, negative pressure generating device is widely used in vacuum cleaning and vacuum packaging processes.

[0003] In the related art, the negative pressure generating device usually includes a main body, a piston, a stretching piece and a grip, etc. The main body forms a negative pressure cavity, the piston is movably arranged in the negative pressure cavity, the stretching piece is connected with the piston, and the grip is connected with the main body. By pulling the stretching piece to drive the piston to move in the negative pressure cavity to generate negative pressure, but in the actual use process, the hand of the user has small contact surface for holding the stretching piece. Under the same force, the smaller the contact surface, the greater the pressure on the hand. Therefore, long-term use can cause hand discomfort, affecting the user's experience. UTILITY MODEL CONTENT

[0004] The main purpose of the utility model is to provide a negative pressure generating device and physiotherapy equipment, to improve the user's experience.

[0005] To achieve the above purpose, the negative pressure generating device provided by the utility model comprises:

[0006] The main body comprises a negative pressure cavity.

[0007] The piston has a piston part and a connecting piece connected to the piston part.

[0008] The driving assembly comprises a first handpiece and a second handpiece. The first handpiece is connected with the main body. One end of the second handpiece is rotatably connected with the main body, and the second handpiece is connected with the connecting piece.

[0009] It is configured that the second handpiece moves relative to the main body to drive the piston part to move in the negative pressure cavity to generate negative pressure in the negative pressure cavity.

[0010] In an embodiment, the second handpiece moves relative to the main body along the radial direction of the main body.

[0011] In an embodiment, the negative pressure generating device comprises a connecting rod, one end of the connecting rod is rotationally connected with the connecting piece of the piston member, and the other end of the connecting rod is rotationally connected with the second handheld member.

[0012] In an embodiment, the first handheld member and the second handheld member are respectively provided with a first connecting part and a second connecting part, and the first connecting part is detachably connected with the second connecting part.

[0013] In an embodiment, the negative pressure generating device comprises a lock sleeve for locking the first connecting part and the second connecting part.

[0014] In an embodiment, when the first handheld member is connected with the second handheld member, the outer wall surface of the first handheld member and the second handheld member is a continuous arc surface.

[0015] In an embodiment, the negative pressure generating device comprises a roller, and the connecting piece is in rolling abutment with the roller.

[0016] In an embodiment, when the first handheld member is connected with the second handheld member, the radial dimension of the side of the negative pressure generating device away from the main body is smaller than the radial dimension of the main body.

[0017] In an embodiment, the outer peripheral wall of the main body is provided with a first threaded structure, one end of the first handheld member is provided with a connecting groove, the inner peripheral wall of the connecting groove is formed with a second threaded structure, and the first threaded structure and the second threaded structure are threadedly connected to connect the main body and the first handheld member.

[0018] In an embodiment, the negative pressure generating device further comprises an elastic member for resetting the piston member.

[0019] The utility model also provides a physiotherapy equipment which comprises the negative pressure generating device in any of the above embodiments.

[0020] In the technical scheme of the utility model, when negative pressure needs to be generated, a user holds the first handheld member and the second handheld member and moves the second handheld member close to the main body to drive the piston part of the piston member to move in the negative pressure cavity from one end to the other end of the negative pressure cavity to compress the air in the negative pressure cavity to generate negative pressure; when negative pressure does not need to be generated, the second handheld member is moved away from the main body to drive the piston part of the piston member to move in the negative pressure cavity from the other end to the one end of the negative pressure cavity to fill the air in the negative pressure cavity and release the negative pressure so that the negative pressure cavity is in a normal pressure state; the first handheld member and the second handheld member are used, the hand of the user has an increased contact area for holding the first handheld member and the second handheld member, so that the hand of the user has a smaller pressure, and the discomfort of the hand of the user is reduced in long-time use, and the use experience of the user is improved. BRIEF DESCRIPTION OF DRAWINGS

[0021] In order to more clearly illustrate the technical solutions of the embodiments of the present application or the prior art, the following will briefly introduce the drawings needed to be used in the embodiments or the prior art description. Obviously, the drawings described below are only some of the embodiments of the present application, and for those skilled in the art, other drawings can also be obtained according to the structures shown in these drawings without creative labor.

[0022] Figure 1 The structure schematic diagram of the negative pressure generating device provided by the present application is provided.

[0023] Figure 2 The sectional view of the negative pressure generating device provided by the present application is provided.

[0024] Figure 3 The sectional view of another embodiment of the negative pressure generating device provided by the present application is provided.

[0025] Explanation of the reference signs:

[0026] 100, negative pressure generating device; 1, main body; 11, negative pressure cavity; 12, negative pressure output port; 2, piston piece; 21, piston part; 22, connecting piece; 3, driving assembly; 31, first hand-held piece; 311, first connecting part; 32, second hand-held piece; 321, second connecting part; 4, connecting rod; 5, lock sleeve; 6, roller; 7, elastic piece.

[0027] The implementation, functional features and advantages of the present application will be further described with reference to the embodiments and the accompanying drawings. DETAILED DESCRIPTION

[0028] The technical solutions in the embodiments of the present application will be described clearly and completely below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only some of the embodiments of the present application, not all the embodiments. Based on the embodiments in the present application, all the other embodiments obtained by those skilled in the art without creative labor are within the protection scope of the present application.

[0029] It should be noted that if the embodiments of the present application involve directional indications (such as up, down, left, right, front, back, etc.), the directional indications are only used to explain the relative position relationship, movement condition, etc. between the components in a certain specific posture, and if the specific posture changes, the directional indications will also change accordingly.

[0030] In addition, if the description of "first", "second" and the like is involved in the embodiments of the utility model, the description of "first", "second" and the like is only for the purpose of description, and cannot be understood as indicating or implying the relative importance of the indicated technical features or implicitly indicating the number of the indicated technical features. Therefore, the features limited by "first", "second" can explicitly or implicitly include at least one of the features. In addition, if "and / or" or "and / or" appears in the whole text, it means that the three parallel schemes are included, for example, "A and / or B" includes A scheme, or B scheme, or A and B scheme. In addition, the technical solutions of each embodiment can be combined with each other, but it must be based on the realization of the ordinary skilled in the art, when the combination of technical solutions appears contradictory or unachievable, it should be considered that the combination of technical solutions does not exist, and is not within the protection scope required by the utility model.

[0031] The utility model provides a kind of negative pressure generating device 100.

[0032] Please refer to Figures 1 to 3 In an embodiment of the utility model, the negative pressure generating device 100 includes main body 1, piston piece 2 and drive assembly 3, the main body 1 includes negative pressure cavity 11;The piston piece 2 has piston part 21 and connecting piece 22 connected to the piston part 21;The drive assembly 3 includes first handpiece 31 and second handpiece 32, the first handpiece 31 is connected with the main body 1, one end of the second handpiece 32 is rotatably connected with the main body 1, and the second handpiece 32 is connected with the connecting piece 22;Configuration is, by the second handpiece 32 relative to the main body 1 moves, to drive the piston part 21 in the negative pressure cavity 11 moves, generates negative pressure in the negative pressure cavity 11.

[0033] In the technical scheme of the utility model, when negative pressure needs to be generated, user holds first handpiece 31 and second handpiece 32, and moves second handpiece 32 close to main body 1 to drive piston part 21 of piston piece 2 in negative pressure cavity 11 from one end of negative pressure cavity 11 to the other end to compress air in negative pressure cavity 11 to generate negative pressure;When negative pressure does not need to be generated, second handpiece 32 moves away from main body 1, drives piston part 21 of piston piece 2 in negative pressure cavity 11 from the other end of negative pressure cavity 11 to one end to fill air in negative pressure cavity 11, releases negative pressure, so that negative pressure cavity 11 is in normal pressure state;The first handpiece 31 and the second handpiece 32 are used, and the gripping contact surface of the hand of the user to the first handpiece 31 and the second handpiece 32 increases, so that the pressure intensity received by the hand is smaller, reduces the discomfort of the hand under long time use, improves the use experience of user.

[0034] In the embodiment, the main body 1 is a main structural component of the negative pressure generating device 100, which comprises a negative pressure cavity 11, which is a space for generating negative pressure; the piston member 2 comprises a piston part 21 and a connecting member 22 connected to the piston part 21, and the piston part 21 moves in the negative pressure cavity 11 to change the volume in the cavity and thus generate negative pressure; the driving assembly 3 comprises a first hand-held member 31 and a second hand-held member 32, the first hand-held member 31 is connected to the main body 1, one end of the second hand-held member 32 is rotationally connected to the main body 1, and the other end is connected to the connecting member 22, so that the second hand-held member 32 can drive the piston part 21 to move in the negative pressure cavity 11 when the second hand-held member 32 moves relatively close to or away from the main body 1; the first hand-held member 31 and the main body 1 can be detachably connected or integrally formed, and the utility model does not limit this; the main body 1 can be cylindrical or square, and the utility model does not limit this.

[0035] In another embodiment, a negative pressure outlet 12 can be formed on one side wall of the negative pressure cavity 11, and a negative pressure generating member is connected to the negative pressure outlet 12 through an air pipe, so that negative pressure is generated in the negative pressure generating member when the second hand-held member 32 is pulled to move close to the main body 1, thereby effectively generating and outputting negative pressure.

[0036] Specifically, in an embodiment of the utility model, the second hand-held member 32 moves along the radial direction of the main body 1 relative to the main body 1. The movement of the second hand-held member 32 directly controls the reciprocating movement of the piston part 21 in the negative pressure cavity 11, and when the second hand-held member 32 moves along the radial direction of the main body 1, the second hand-held member 32 drives the piston part 21 to move correspondingly in the negative pressure cavity 11 through the connecting member 22, thereby achieving the operation of generating or releasing negative pressure; the movement of the second hand-held member 32 along the radial direction of the main body 1 relative to the main body 1 can make the user keep the stretching direction of the second hand-held member 32 consistent with the holding direction of the hand during use, and increase the holding contact surface, thereby further reducing the discomfort of the hand; in an embodiment, the outer peripheral wall of the main body 1, the first hand-held member 31 and the second hand-held member 32 is provided with a plurality of holding protrusions, so as to increase the holding area of the user for the main body 1, the first hand-held member 31 and the second hand-held member 32, prevent sliding during use, and thus improve the user's experience.

[0037] To make the user operation more labor-saving, please refer to Figure 2In an embodiment of the utility model, the negative pressure generating device 100 includes connecting rod 4, one end of connecting rod 4 is rotatably connected with the connecting piece 22 of piston piece 2, the other end of connecting rod 4 is rotatably connected with second handheld piece 32. User rotates second handheld piece 32, drives the other end of connecting rod 4 to rotate, and the rotation of connecting rod 4 is transmitted to piston part 21 through the connection of connecting rod 4 and connecting piece 22, so that piston part 21 moves along the axial direction in negative pressure cavity 11, when piston part 21 moves, it compresses or releases the air in negative pressure cavity 11, thereby generating or reducing negative pressure;The function of connecting rod 4 is to convert the manual movement of second handheld piece 32 into the reciprocating motion of piston piece 2, when user operates second handheld piece 32, connecting rod 4 transmits this motion to piston piece 2, so that it moves in negative pressure cavity 11;The design of connecting rod 4 can increase the torque, so that user can more easily pull second handheld piece 32 to realize the movement of piston piece 2;By using connecting rod 4, second handheld piece 32 does not need to be directly contacted with piston piece 2, which helps to reduce wear and tear and improve the durability of the device;The design of connecting rod 4 makes user operation more labor-saving, improves the working efficiency of the whole negative pressure generating device 100;The rotatable connection of the above-mentioned connecting rod 4 and second handheld piece 32 can be realized by setting two connecting columns on second handheld piece 32, connecting the connecting column with a connecting groove, setting two rotating shafts on both sides of connecting rod 4, and rotating each rotating shaft in a connecting groove;Or a through groove is formed in connecting rod 4, a convex column is arranged on second handheld piece 32, a connecting groove is formed in the convex column, and a hinged rod is used to rotate through the through groove and the connecting groove to realize the rotatable connection of connecting rod 4 and second handheld piece 32, which is not limited in the utility model, and the rotatable connection of the above-mentioned connecting rod 4 and connecting piece 22 can also adopt the above-mentioned embodiment.

[0038] For the convenience of carrying negative pressure generating device 100, please refer to Fig Figure 2 In an embodiment of the utility model, first handheld piece 31 and second handheld piece 32 are respectively provided with first connecting part 311 and second connecting part 321, and first connecting part 311 and second connecting part 321 are detachably connected. When negative pressure generating device 100 needs to maintain the state of generating negative pressure, first connecting part 311 and second connecting part 321 can be connected, and when it does not need to maintain the state of generating negative pressure, first connecting part 311 and second connecting part 321 are detached again. When it is necessary to carry or transport negative pressure generating device 100, first connecting part 311 and second connecting part 321 can be connected to reduce the occupied volume of negative pressure generating device 100, facilitate carrying and transportation. First connecting part 311 and second connecting part 321 can be buckle and slot, or can be bolt and socket, which is not limited in the utility model.

[0039] Further, please refer to Fig Figure 1 And Figure 2In an embodiment of the utility model, the negative pressure generating device 100 includes a lock sleeve 5, and the lock sleeve 5 is used for locking the first connecting part 311 and the second connecting part 321. The main function of the lock sleeve 5 is to firmly lock the first connecting part 311 and the second connecting part 321, to ensure that the first connecting part 311 and the second connecting part 321 are not easy to be loosened when being connected, to prevent safety problems caused by unstable connection, and to firmly lock the first handheld piece 31 and the second handheld piece 32 by the lock sleeve 5, so as to facilitate carrying and storage and also to be used when it is needed to maintain a negative pressure state. In an embodiment, the lock sleeve 5 is provided with a lock groove (which can also be a locking channel), the first handheld piece 31 and the second handheld piece 32 are respectively provided with a first half groove and a second half groove at one end away from the main body 1, the first half groove and the second half groove are communicated to form a port for assembling the lock sleeve 5, a first protruding part is formed on the bottom wall of the first half groove, a second protruding part is formed on the bottom wall of the second half groove, the first protruding part and the second protruding part are enclosed and limited in the lock groove, the first connecting part 311 includes the first protruding part, the second connecting part 321 includes the second protruding part, when the lock sleeve 5 is locked with the first connecting part 311 and the second connecting part 321, the second handheld piece 32 is first moved close to the main body 1, and the first protruding part and the second protruding part are contacted, and then the lock sleeve 5 is sleeved on the first protruding part and the second protruding part, so as to realize locking.

[0040] For the convenience of the user holding the negative pressure generating device 100, please refer to Figure 3 In an embodiment of the utility model, when the first handheld piece 31 and the second handheld piece 32 are connected, the outer wall surface of the first handheld piece 31 and the second handheld piece 32 is a continuous arc surface. The outer wall surface of the first handheld piece 31 and the second handheld piece 32 is designed as a continuous arc surface, which provides a smooth and ergonomic shape, so that the handheld piece is more fitted to the hand profile of the user when being connected. The design of the continuous arc surface can provide a more comfortable holding feeling and reduce fatigue when being used for a long time, and the design of the continuous arc surface is more visually beautiful. The design of the continuous arc surface also helps to reduce stress concentration points, thereby improving the durability of the structure.

[0041] Further, please refer to Figure 2In an embodiment of the present application, the negative pressure generating device 100 comprises a roller 6, and the connecting piece 22 rolls against the roller 6. The roller 6 allows the connecting piece 22 to roll on its surface, which reduces friction and allows the connecting piece 22 to move or adjust position within a certain range. The design of the roller 6 provides a guiding effect, and the roller 6 can help guide the connecting piece 22 to move along a specific path or direction, which is crucial for ensuring the correct operation of the negative pressure generating device 100 and improving its efficiency; the roller 6 can reduce direct contact between the connecting piece 22 and other components, thereby reducing wear and tear and prolonging the service life of the components; when the negative pressure generating device 100 is working, the connecting piece 22 rolls on the roller 6, and the guiding effect of the roller 6 ensures that the connecting piece 22 moves along the correct path, thereby effectively generating negative pressure.

[0042] For further convenience of the user to hold, please refer to Figure 1 In an embodiment of the present application, when the first hand piece 31 is connected with the second hand piece 32, the radial dimension of the side of the negative pressure generating device 100 away from the main body 1 is smaller than the radial dimension of the main body 1. When the first hand piece 31 is connected with the second hand piece 32, the radial dimension of the side of the negative pressure generating device 100 away from the main body 1 is designed to be smaller than the radial dimension of the main body 1, so that the end part of the device is more slender and more ergonomic, which is convenient for the user to hold and operate; by reducing the size of the side away from the main body 1, the user can more naturally fit the hand contour when holding the device, reducing the fatigue feeling when holding; the gradually changing size design makes the user more easily operate when operating the device, such as pulling the second hand piece 32 to generate negative pressure, improving the convenience of operation.

[0043] To realize the detachable connection of the first hand piece 31 and the main body 1, please refer to Figure 2In an embodiment of the utility model, the outer peripheral wall of the main body 1 is provided with a first threaded structure, one end of the first handheld piece 31 is provided with a connecting groove, the inner peripheral wall of the connecting groove is formed with a second threaded structure, the first threaded structure and the second threaded structure are threadedly connected to connect the main body 1 with the first handheld piece 31. The user aligns the connecting groove of the first handheld piece 31 with the outer peripheral wall of the main body 1, so that the second threaded structure is aligned with the first threaded structure, by rotating the first handheld piece 31, the second threaded structure and the first threaded structure are threadedly connected with each other, thereby realizing the fixed connection of the main body 1 with the first handheld piece 31, this connection mode allows the user to easily assemble or disassemble the main body 1 with the first handheld piece 31 according to the need, the threaded connection provides a stable and reliable connection mode, ensures that the main body 1 and the first handheld piece 31 will not be accidentally separated during use, the threaded connection design can also disperse the stress and reduce the wear of the single connection point, thereby improving the durability of the whole device, the threaded connection also allows the user to quickly and conveniently assemble and disassemble the negative pressure generating device 100, and the operation convenience is improved. In another embodiment, the first handheld piece 31 and the main body 1 can also be bonded, and the utility model does not limit this.

[0044] To reset the piston 2, please refer to Figure 2 In an embodiment of the utility model, the negative pressure generating device 100 further comprises an elastic member 7 for resetting the piston 2. When negative pressure needs to be generated, the user holds the first handheld piece 31 and the second handheld piece 32, and moves the second handheld piece 32 close to the main body 1 to drive the piston part 21 of the piston 2 to compress the elastic member 7 and move in the negative pressure cavity 11 from one end to the other end in the negative pressure cavity 11, so as to compress the air in the negative pressure cavity 11 to generate negative pressure; when the user releases the second handheld piece 32, the piston part 21 moves reversely under the elastic restoring force of the elastic member 7 to reduce the negative pressure; the elastic member 7 can be sleeved on the connecting member 22 and located between the piston part 21 and the side wall of the negative pressure cavity 11, or the two ends of the elastic member 7 can be connected with the piston part 21 and the side wall of the negative pressure cavity 11 respectively, and the utility model does not limit this.

[0045] The utility model also provides a physiotherapy equipment, the physiotherapy equipment includes negative pressure generating device 100, the specific structure of negative pressure generating device 100 refers to the above-mentioned embodiment, because the physiotherapy equipment adopts all technical schemes of the above-mentioned all embodiments, therefore at least has all beneficial effects brought by the technical scheme of the above-mentioned embodiment, here will not repeat again. Among them, the physiotherapy equipment can be a breast pump, also can be a nose suction device, also can be a cupping equipment, and the utility model does not limit this.

[0046] The above merely illustrates the exemplary embodiments of the present application, and does not limit the patent scope of the present application, and any equivalent structural transformation or direct / indirect application in other related technical fields under the technical concept of the present application and by using the content of the present application specification and drawings are included in the patent protection scope of the present application.

Claims

1. A negative pressure generating device, characterized by, The negative pressure generating device comprises: a main body comprising a negative pressure cavity; a piston piece having a piston part and a connecting piece connected to the piston part; and a driving assembly comprising a first hand piece and a second hand piece, the first hand piece being connected to the main body, one end of the second hand piece being rotationally connected to the main body, and the second hand piece being connected to the connecting piece. The second hand piece is configured to move relative to the main body to drive the piston part to move in the negative pressure cavity to generate negative pressure in the negative pressure cavity. The second hand piece moves relative to the main body along a radial direction of the main body.

2. The negative pressure generating device of claim 1, wherein The negative pressure generating device comprises a connecting rod, one end of the connecting rod being rotationally connected to the connecting piece of the piston piece, and the other end of the connecting rod being rotationally connected to the second hand piece.

3. The negative pressure generating device of claim 1, wherein The first hand piece and the second hand piece are respectively provided with a first connecting part and a second connecting part, and the first connecting part and the second connecting part are detachably connected.

4. The negative pressure generating apparatus of claim 1, wherein The negative pressure generating device comprises a lock sleeve for locking the first connecting part and the second connecting part.

5. The negative pressure generating device of claim 4, wherein When the first hand piece and the second hand piece are connected, the outer wall surface of the first hand piece and the second hand piece is a continuous curved surface.

6. The negative pressure generating apparatus of claim 1, wherein The negative pressure generating device comprises a roller, and the connecting piece rolls against the roller.

7. The negative pressure generating apparatus of claim 1, wherein When the first hand piece and the second hand piece are connected, the radial dimension of the side of the negative pressure generating device away from the main body is smaller than the radial dimension of the main body.

8. The negative pressure generating apparatus of claim 1, wherein The outer peripheral wall of the main body is provided with a first threaded structure, one end of the first hand piece is provided with a connecting groove, the inner peripheral wall of the connecting groove is formed with a second threaded structure, and the first threaded structure and the second threaded structure are threadedly connected to connect the main body and the first hand piece.

9. The negative pressure generating apparatus of claim 1, wherein The negative pressure generating device further comprises an elastic piece for resetting the piston piece.

10. The negative pressure generating apparatus of claim 1, wherein The negative pressure generating device comprises any one of claims 1 to 10.

11. A physiotherapy apparatus characterised by The negative pressure generating device comprises any one of claims 1 to 10.

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