A press type connecting structure and a peristaltic pump using the same

Abstract

The utility model discloses a kind of press type connecting structure and peristaltic pump of application this connecting structure, belong to peristaltic pump technical field;The connecting structure includes: first locking portion, with two and opposite setting on the mounting surface, first guide inclined plane is set on each first locking portion;Button, with two and respectively movably installed in two installation areas, each button is moved between first position and second position relative to corresponding installation area;Second locking portion is set on each button, and second guide inclined plane is set on the second locking portion;Elastic member, with two and respectively installed in two installation areas, each elastic member is used to force the button in corresponding installation area from second position to first position. Staff only needs to align second object with first object, and by pressing second object, the connection of first object and second object can be completed, and the assembly efficiency is greatly improved.

Description

Technical Field

[0001] This utility model relates to the field of peristaltic pump technology, and in particular to a press-type connection structure and a peristaltic pump using the connection structure. Background Technology

[0002] In the field of mechanical connections, especially for components that require frequent disassembly and assembly (such as the pump body and pump cover, housing and base of a peristaltic pump), traditional connection methods are generally bolt fastening, snap-locking, etc.

[0003] Traditional bolt connections: require tools (such as screwdrivers and wrenches) to tighten each bolt individually, resulting in slow installation efficiency. Traditional snap-fit ​​connections: after the two parts to be connected are positioned, additional operations are required to lock the two parts together, such as rotating the snap-fit ​​mechanism.

[0004] Therefore, there is a need to provide a press-type connection structure that satisfies efficient assembly and a peristaltic pump that uses this connection structure. Utility Model Content

[0005] This utility model provides a press-type connection structure and a peristaltic pump using the connection structure to solve the problems in the prior art.

[0006] This utility model embodiment adopts the following technical solution: a press-type connection structure for connecting a first object and a second object, wherein the first object has a mounting surface, the second object has two mounting areas, and the second object is mounted on the mounting surface of the first object; the connection structure includes: two first locking parts disposed opposite to each other on the mounting surface, each first locking part having a first guide slope; two buttons disposed and movably mounted in the two mounting areas respectively, each button moving between a first position and a second position relative to its corresponding mounting area; each button having a second locking part, and the... The second locking part is provided with a second guide slope; two elastic elements are configured and installed in two installation areas respectively, each elastic element is used to force the button in the corresponding installation area to move from the second position to the first position; as the second object faces the first object and gradually approaches the installation surface, the first guide slope cooperates with the corresponding second guide slope and forces the button to move from the first position to the second position; when the second object is installed on the installation surface, the button moves to the first position under the action of the elastic element, so that the first locking part locks with the corresponding second locking part, thereby achieving the axial positioning of the second object and the first object.

[0007] Preferably, both the first locking part and the second locking part are configured as a rack and pinion structure; when the second object is mounted on the mounting surface, the first locking part and the second locking part are engaged and connected.

[0008] Preferably, the back side of the first locking part is provided with a plurality of first reinforcing ribs extending along its length direction.

[0009] Preferably, the button is provided with a first groove, and a second reinforcing rib is provided on one side of the first groove, which is staggered with a plurality of first reinforcing ribs, and a vertical groove is formed between adjacent second reinforcing ribs; when the first locking part and the second locking part are engaged, the first locking part is inserted into the first groove and the plurality of first reinforcing ribs and the corresponding vertical grooves are separated; when the second locking part is disengaged from the first locking part and the button is in the second position, the plurality of first reinforcing ribs are respectively located in the plurality of vertical grooves.

[0010] Preferably, the installation area includes a second slot with an opening and a sliding groove on one side wall of the second slot. The button is provided with a sliding part, the button is slidably disposed in the second slot, and the sliding part is slidably connected in the sliding groove.

[0011] Preferably, the second slot is provided with a clearance groove that communicates with the outside, and the first locking part passes through the clearance groove and locks with the corresponding second locking part.

[0012] Preferably, at least one slot is provided next to the clearance groove, and the button has a movable spring arm on the side corresponding to the slot. A protrusion and a limiting wall on the protrusion are provided on the outer side of the free end of the spring arm. When the button is in the first position, the limiting wall abuts against one side wall of the slot to prevent the button from disengaging from the second slot.

[0013] Preferably, the button includes a main body and a cover plate, the cover plate being detachably mounted on the main body, and the second locking part being located inside the cover plate.

[0014] Preferably, the button is provided with at least one circular groove, and a limiting rod corresponding to the circular groove is fixedly provided in the installation area; the elastic element is configured as a compression spring, which is sleeved on the limiting rod and elastically supported at the bottom of the circular groove.

[0015] A push-type peristaltic pump includes a pump body, a pump cover, and a push-type connecting structure, wherein the pump body is a first object and the pump cover is a second object.

[0016] The above-mentioned technical solutions adopted in the embodiments of this utility model can achieve the following beneficial effects: The operator simply aligns the second object with the first object and presses the second object. The cooperation of the first and second guide ramps causes the button to move to the second position, aligning the second locking part with the first locking part. The elastic force of the spring element on the button then locks the second locking part against the first locking part, thus completing the connection between the first and second objects and significantly improving assembly efficiency. To separate the first and second objects, pressing both buttons manually overcomes the elastic force, causing the second locking part to separate from the first locking part. The second object can then be pulled away from the mounting surface for quick disassembly. Attached Figure Description

[0017] The accompanying drawings, which are included to provide a further understanding of the present invention and constitute a part of this invention, illustrate exemplary embodiments of the present invention and, together with the description thereof, serve to explain the present invention and do not constitute an undue limitation thereof. In the drawings: Figure 1 This is a three-dimensional structural diagram of the present invention; Figure 2 This is a three-dimensional structural cross-sectional view of the first and second objects of this utility model in the locked state. Figure 3 This is an exploded view of the first and second objects of this utility model; Figure 4 This is a cross-sectional view of the first and second objects of this utility model in their separated state. Figure 1 ; Figure 5 This is a schematic diagram of the structure of the button of this utility model in the second position; Figure 6 This is a cross-sectional view of the first and second objects of this utility model in their separated state. Figure 2 ; Figure 7 This is an exploded view of the present invention; Figure 8 This is a schematic diagram showing the installation of the first object and the button of this utility model; Figure 9 This is a three-dimensional structural diagram of the button of this utility model.

[0018] Figure Labels 1-First object; 11-Mounting surface; 2-Second object; 21-Installation area; 211-Second slot; 212-Slide groove; 22-Allowing groove; 23-Card slot; 24-Limit rod; 3-First locking part; 31-First guide slope; 32-First reinforcing rib; 4-Button; 41-Main body; 411-First groove; 412-Second reinforcing rib; 413-Vertical groove; 414-Sliding part; 415-Spring arm; 4151-Protrusion; 4152-Limiting wall; 42-Cover plate; 421-Second locking part; 422-Second guide slope; 43-Circular groove; 5-Elastic element. Detailed Implementation

[0019] To further illustrate the technical means and effects adopted by this utility model in order to achieve the intended utility model purpose, the following detailed description of the specific implementation methods, structure, features and effects of this utility model is provided in conjunction with the accompanying drawings and preferred embodiments.

[0020] The technical solutions provided by the various embodiments of this utility model are described in detail below with reference to the accompanying drawings.

[0021] Reference Figures 1 to 9 As shown, this embodiment of the utility model provides a press-type connection structure for connecting a first object 1 and a second object 2. In some practical applications, this connection structure can be applied to a peristaltic pump, which includes a pump body and a pump cover. The pump body corresponds to the first object 1, and the pump cover corresponds to the second object 2. The first object 1 has a mounting surface 11, and the second object 2 has two mounting areas 21. The second object 2 is mounted on the mounting surface 11 of the first object 1.

[0022] The connection structure mainly includes a first locking part 3, a button 4, and an elastic element 5. Two first locking parts 3 are disposed opposite each other on the mounting surface 11, each first locking part 3 having a first guide slope 31; two buttons 4 are disposed and movably mounted in two mounting areas 21, each button 4 moving between a first position and a second position relative to its corresponding mounting area 21; each button 4 has a second locking part 421, and the second locking part 421 has a second guide slope 422; two elastic elements 5 are disposed and installed in the two mounting areas 21, each elastic element 5 forcing the button 4 in its corresponding mounting area 21 from the second position towards the first position. As the second object 2 faces the first object 1 and gradually approaches the mounting surface 11, the first guide slope 31 engages with the corresponding second guide slope 422, forcing the button 4 to move from the first position to the second position. When the second object 2 is mounted on the mounting surface 11, the button tends to the first position under the action of the elastic member 5, so that the first locking part 3 locks with the corresponding second locking part 421, thereby limiting the second object 2 and the first object 1 in their axial direction.

[0023] The initial state of the push-button connection structure: button 4 is in the first position (i.e., uncompressed state) under the action of elastic element 5, such as... Figure 3 , Figure 4 and Figure 6 The second object 2 is also not connected to the first object 1. When the second object 2 faces the first object 1 and gradually approaches the mounting surface 11, the first guide slope 31 of the first locking part 3 and the second guide slope 422 of the second locking part 421 come into contact and press against each other, thereby forcing the button 4 to overcome the elastic force of the elastic member 5 and move towards the second position (in actual application, the second position is the position where the button 4 retracts into the mounting area 21 until it can no longer move, such as...). Figure 5 It should be noted that the second position can also be any position after the second locking part 421 and the first locking part 3 are disengaged, so that the second locking part 421 can be moved to the side of the first locking part 3 and the engagement of the first guide slope 31 and the second guide slope 422 is terminated, and the lateral squeezing force generated by the first guide slope 31 on the button 4 also disappears.

[0024] When the second object 2 is fully attached to the mounting surface 11, such as Figure 2 The elastic element 5 can push the button 4 to reset towards the first position, so that the second locking part 421 contacts the first locking part 3 and forms a mechanical lock (such as a buckle, boss and groove fit). After locking, the first locking part 3 and the second locking part 421 block each other in the axial direction (perpendicular to the mounting surface 11), thereby restricting the separation of the second object 2 and the first object 1 in the axial direction and achieving a stable connection.

[0025] In this embodiment, the operator only needs to align the second object 2 with the first object 1, and press the second object 2. The first guide slope 31 and the second guide slope 422 work together to move the button 4 to the second position, aligning the second locking part 421 with the first locking part 3. The elastic force of the elastic member 5 on the button 4 causes the second locking part 421 to abut against the first locking part 3, thus locking the first object 1 and the second object 2 together, significantly improving assembly efficiency. If it is necessary to separate the first object 1 and the second object 2, pressing both buttons 4 manually overcomes the elastic force of the elastic member 5, causing the second locking part 421 to separate from the first locking part 3, and the second object 2 can be pulled away from the mounting surface 11, achieving quick disassembly.

[0026] In some practical applications, both the first locking part 3 and the second locking part 421 are configured as rack and pinion structures; when the second object 2 is installed on the mounting surface 11, the first locking part 3 and the second locking part 421 are engaged and connected.

[0027] In this embodiment, the initial state of the press-type connection structure is as follows: the button 4 is in the first position under the action of the elastic member 5. When the second object 2 approaches the mounting surface 11, the first guide slope 31 of the first locking part 3 (which may be the tooth tip slope of the rack structure) contacts the second guide slope 422 of the second locking part 421 (which may be the tooth tip slope of the rack structure), thereby forcing the button 4 to move to the second position (the button 4 retracts into the mounting area 21).

[0028] The sliding engagement between the two rack structures differs from the single-point ramp engagement between the original first guide ramp 31 and the second guide ramp 422. The continuous teeth of the two rack structures continuously contact and slide as the second object 2 approaches, ensuring smoother and more precise movement of the button 4. When the second object 2 adheres to the mounting surface 11, the elastic element 5 pushes the button 4 back to the first position, at which point the teeth of the two rack structures are fully engaged. After the first object 1 and the second object 2 are connected, the multi-tooth engagement forms a tighter connection. For example, when applied to a peristaltic pump, the pump body and pump cover are locked together through this connection structure. Even when the peristaltic pump vibrates during operation, the interlocking of the teeth effectively suppresses the axial movement of the pump cover, solving the problem of easy disengagement or unstable connection of traditional snap-fit ​​connections under high-frequency vibration.

[0029] In some practical applications, the back side of the first locking part 3 is provided with a plurality of points along its length direction (i.e. Figure 3 As shown, the first reinforcing rib 32 extends in a direction perpendicular to the mounting surface 11 (as shown). Figure 8 and Figure 9 The first reinforcing rib 32 can effectively resist the bending moment when the first locking part 3 and the second locking part 421 are connected or engaged. In addition, in actual production, the first locking part 3 is generally formed by injection molding. If the thickness of traditional injection molded parts is simply increased to improve strength, it is easy to cause shrinkage and deformation due to uneven cooling. However, the structure of the first reinforcing rib 32 improves the strength of the first locking part 3 while avoiding shrinkage and deformation during the injection molding process.

[0030] Specifically, such as Figure 9 The button 4 is provided with a first groove 411 (that is, the part where the first locking part 3 is inserted into the button 4). One side of the first groove 411 is also provided with second reinforcing ribs 412 that are staggered with a plurality of first reinforcing ribs 32, and vertical grooves 413 are formed between adjacent second reinforcing ribs 412. When the first locking part 3 and the second locking part 421 are engaged, the first locking part 3 is inserted into the first groove 411 and the plurality of first reinforcing ribs 32 and the corresponding vertical grooves 413 are separated. The side wall of the first groove 411 can form a lateral limit on the first locking part 3. When the second locking part 421 is disengaged from the first locking part 3 and the button 4 is in the second position, the plurality of first reinforcing ribs 32 are respectively located in the plurality of vertical grooves 413.

[0031] The second reinforcing rib 412 on button 4 (interspersed with the first reinforcing rib 32) enhances the structural strength around the first groove 411, preventing button 4 from cracking during repeated pressing. When button 4 is in the second position (unlocked state), the first reinforcing rib 32 is located within the vertical groove 413. At this time, the sidewall of the vertical groove 413 can provide lateral restraint to the first reinforcing rib 32, reducing the wobbling of button 4. It should be noted that, in this embodiment, as... Figure 8 and Figure 9 When button 4 is in the second position, the first reinforcing rib 32 also abuts against the inner side wall of the corresponding vertical groove 413, so that button 4 cannot continue to move into the mounting area 21. At this time, the first locking part 3 and the second locking part 421 disengage from the engagement connection.

[0032] In other practical applications, refer to Figure 7 As shown, the installation area 21 includes a second slot 211 with an opening and a sliding groove 212 located on one side wall of the second slot 211. The button 4 is provided with a sliding part 414, and the button 4 is slidably disposed in the second slot 211. The sliding part 414 is slidably connected in the sliding groove 212. The second slot 211 and the sliding groove 212 are connected by a double limiting structure to ensure that the button 4 slides smoothly in the installation area 21.

[0033] Specifically, the second slot 211 is provided with a clearance slot 22 that connects to the outside (e.g., Figure 7 The first locking part 3 passes through the clearance groove 22 and locks with the corresponding second locking part 421, ensuring that the first locking part 3 and the second locking part 421 can engage and disengage without interference. Additionally, the top of the first locking part 3 (i.e., the upper end of the first reinforcing rib 32, such as...) Figure 7 As can be seen, the chamfer setting allows the first locking part 3 to pass through the relief groove 22 as a whole, avoiding interference between the end of the first locking part 3 and the side wall of the relief groove 22.

[0034] Specifically, refer to Figure 6 As shown, at least one slot 23 is also provided beside the clearance groove 22. The button 4 has a movable spring arm 415 on the side corresponding to the slot 23. A protrusion 4151 and a limiting wall 4152 located on the protrusion 4151 are provided on the outer side of the free end of the spring arm 415. When the button 4 is in the first position, the limiting wall 4152 abuts against one side wall of the slot 23 to prevent the button 4 from disengaging from the second slot 211. The slot 23 and the spring arm 415 are provided to prevent the button 4 from accidentally disengaging from the second slot 211 without affecting the normal sliding of the button 4.

[0035] When assembling button 4: The spring arm 415 of button 4 has elastic deformation capability. When button 4 is aligned with the second slot 211, the protrusion 4151 at its free end can enter the second slot 211 through the deformation of the spring arm 415. When the protrusion 4151 moves to the slot 23, the spring arm 415 elastically resets and can be locked into the slot 23. When button 4 slides from the first position to the second position, the spring arm 415 moves synchronously with button 4, and the protrusion 4151 slides in the slot 23 (the length of the slot 23 needs to cover the sliding stroke of button 4). When button 4 slides from the second position to the first position, the limiting wall 4152 on the protrusion 4151 abuts against the side wall of the slot 23 to limit button 4 from sliding out of the second slot 211.

[0036] In some practical applications, refer to Figure 9 As shown, the button 4 includes a main body 41 and a cover plate 42. The cover plate 42 is detachably installed on the main body 41, and the second locking part 421 is located inside the cover plate 42. The detachable design of the button 4 facilitates the processing of parts in various parts. The connection between the cover plate 42 and the main body 41 can be achieved by bolts or by the spring arm 415 structure described above.

[0037] In some practical applications, based on any of the above implementation methods: Refer to Figure 6 and Figure 9 As shown, the button 4 is provided with at least one circular groove 43, and a limiting rod 24 corresponding to the circular groove 43 is fixedly provided in the mounting area 21; the elastic element 5 is configured as a compression spring, which is sleeved on the limiting rod 24 and elastically supported at the bottom of the circular groove 43.

[0038] A compression spring is sleeved on the limiting rod 24, which effectively limits the radial swing of the compression spring during compression or reset. The circular groove 43 on the button 4 encloses the end of the compression spring, further ensuring that the compression spring always extends and contracts axially.

[0039] The above description is merely a preferred embodiment of the present utility model and is not intended to limit the present utility model in any way. Although the present utility model has been disclosed above with reference to a preferred embodiment, it is not intended to limit the present utility model. Any person skilled in the art can make some modifications or alterations to the above-disclosed technical content to create equivalent embodiments without departing from the scope of the present utility model. Any simple modifications, equivalent changes and alterations made to the above embodiments based on the technical essence of the present utility model without departing from the scope of the present utility model shall still fall within the scope of the present utility model.

Claims

1. A press-type connection structure for connecting a first object (1) and a second object (2), characterized in that, The first object (1) has a mounting surface (11), and the second object (2) has two mounting areas (21). The second object (2) is mounted on the mounting surface (11) of the first object (1). The connection structure includes: Two first locking parts (3) are provided and are disposed opposite to each other on the mounting surface (11), and each first locking part (3) is provided with a first guide slope (31). Two buttons (4) are configured and are respectively installed in two installation areas (21). Each button (4) moves between a first position and a second position relative to the corresponding installation area (21). Each button (4) is provided with a second locking part (421) and a second guide slope (422) is provided on the second locking part (421). Two elastic elements (5) are configured and installed in two mounting areas (21) respectively. Each elastic element (5) is used to force the button (4) in the corresponding mounting area (21) to move from the second position to the first position. As the second object (2) faces the first object (1) and gradually approaches the mounting surface (11), the first guide slope (31) cooperates with the corresponding second guide slope (422) and forces the button (4) to move from the first position to the second position. When the second object (2) is installed on the mounting surface (11), the button (4) tends to the first position under the action of the elastic member (5) so that the first locking part (3) locks with the corresponding second locking part (421), thereby limiting the second object (2) and the first object (1) in their axial direction.

2. The press-type connection structure according to claim 1, characterized in that, The first locking part (3) and the second locking part (421) are both configured as rack and pinion structures; when the second object (2) is installed on the mounting surface (11), the first locking part (3) and the second locking part (421) are engaged and connected.

3. The press-type connection structure according to claim 2, characterized in that, The back side of the first locking part (3) is provided with a plurality of first reinforcing ribs (32) extending along its length direction.

4. The press-type connection structure according to claim 3, characterized in that, The button (4) is provided with a first groove (411), and a second reinforcing rib (412) is provided on one side of the first groove (411) and is distributed interlaced with a number of first reinforcing ribs (32), and a vertical groove (413) is formed between adjacent second reinforcing ribs (412); when the first locking part (3) and the second locking part (421) are engaged, the first locking part (3) is inserted into the first groove (411) and the number of first reinforcing ribs (32) and the corresponding vertical groove (413) are separated; when the second locking part (421) is disengaged from the first locking part (3) and the button (4) is in the second position, the number of first reinforcing ribs (32) are respectively located in the number of vertical grooves (413).

5. The press-type connection structure according to claim 1, characterized in that, The installation area (21) includes a second slot (211) with an opening and a slide groove (212) on one side wall of the second slot (211). The button (4) is provided with a sliding part (414). The button (4) is slidably disposed in the second slot (211), and the sliding part (414) is slidably connected in the slide groove (212).

6. The press-type connection structure according to claim 5, characterized in that, The second slot (211) is provided with a clearance slot (22) that communicates with the outside. The first locking part (3) passes through the clearance slot (22) and locks with the corresponding second locking part (421).

7. A press-type connection structure according to claim 6, characterized in that, At least one slot (23) is provided on the side of the clearance groove (22). The button (4) has a movable spring arm (415) on one side of the slot (23). A protrusion (4151) and a limiting wall (4152) are provided on the outer side of the free end of the spring arm (4151). When the button (4) is in the first position, the limiting wall (4152) abuts against one side wall of the slot (23) to restrict the button (4) from disengaging from the second slot (211).

8. The press-type connection structure according to claim 1, characterized in that, The button (4) includes a main body (41) and a cover plate (42). The cover plate (42) is detachably installed on the main body (41), and the second locking part (421) is located inside the cover plate (42).

9. A press-type connection structure according to claim 1, characterized in that, The button (4) is provided with at least one circular groove (43), and a limiting rod (24) corresponding to the circular groove (43) is fixedly provided in the installation area (21); the elastic element (5) is configured as a compression spring, which is sleeved on the limiting rod (24) and elastically supported at the bottom of the circular groove (43).

10. A push-type peristaltic pump, characterized in that, It includes a pump body, a pump cover, and a press-type connection structure as described in any one of claims 1-9, wherein the pump body is the first object (1) and the pump cover is the second object (2).

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