Sliding block clamping structure of table type injection pump
By designing the slide clamping structure of threaded shaft and jaws in the syringe pump, the problem that the syringe pump cannot stably fix the various syringe push handles in the prior art is solved, and stable clamping and adaptation of various syringe models is achieved. Improved matching.
Patent Information
- Application Number
- CN202421005591.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-05-10
- Publication Date
- 2025-02-07
- Estimated Expiration
- 2034-05-10
AI Technical Summary
In existing syringe pumps, the way the metal sheet metal cuts out the groove and connects the foot to the syringe slide cannot stably fix the various types and models of syringe push handles, and is not compatible with all push handle sizes.
A desktop syringe pump slide clamping structure is designed, which adopts a combination of threaded shaft and clamping jaws, and is rotatably connected to the slider through threaded shaft. The inner surface of the clamping jaws is provided with a limit edge, and the limit edge is located in the slideway to achieve the correctness of the Stable clamping of the syringe core rod.
The structure is adaptable to a variety of syringe models, providing more stable clamping, stronger adaptability, and even compatible with pure glass syringes.
Smart Images
Figure CN222436578U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of injection pumps, in particular to a sliding block clamping structure of a desktop injection pump. Background Art
[0002] A syringe pump is a volumetric pump that is mainly used for dispensing or delivering fluids and is widely used in the food, chemical and other industries. When a syringe pump is used to transfer liquid, the syringe performs a reciprocating pumping motion to complete the transfer of the liquid.
[0003] Due to different usage scenarios, the syringes equipped in the syringe pump are also different, including plastic syringes, metal syringes, and pure glass syringes. Due to the diameter size and structural characteristics of various models and types of syringes, the height and diameter of the push handle are not fixed when they are installed in the syringe pump. At present, the syringe pump industry uses the form of cutting grooves in metal sheets and connecting the feet to the syringe pump slider to achieve push handle fixation. This method of fixation is unstable and cannot be compatible with all sizes of syringe push handles. Utility Model Content
[0004] In view of this, the utility model provides a table-top syringe pump slider clamping structure, which can adapt to all types and models of syringe push handles and ensure the stability and firmness of the syringe during pushing and extracting operations.
[0005] The utility model adopts the following technical solutions to achieve the above technical effects:
[0006] A table-type syringe pump slider clamping structure includes a slider for pushing a syringe core rod; a threaded shaft and a clamping claw;
[0007] The threaded shaft has two sections of threads with opposite rotation directions, and is rotationally connected to the slider; the clamping jaws include a left jaw and a right jaw; the left jaw and the right jaw are respectively threadedly connected to the corresponding threaded sections.
[0008] Furthermore, a slideway is provided on the sliding block, and a limiting edge is provided on the inner surface of the clamping jaws. The limiting edge is located in the slideway and can move freely along the slideway.
[0009] Furthermore, a mounting groove is provided on the sliding block; the threaded shaft is rotationally connected to the mounting groove via a bearing; the inner side of the clamping jaw extends into the mounting groove and is connected to the corresponding threaded section of the threaded shaft.
[0010] Furthermore, the middle position of the installation groove is a clamping groove, and a bearing fixing block fixedly connected to the clamping groove is provided at the clamping groove, and the bearing fixing block is connected to the middle position of the threaded shaft through a bearing.
[0011] Furthermore, the bearing fixing block located in the slot is locked by means of a bolt that passes through the back of the slider.
[0012] Furthermore, two slideways are provided, and the two slideways are respectively located at the upper and lower sides of the installation groove.
[0013] Furthermore, the clamp includes a connecting portion and a clamping portion; wherein the connecting portion is located on the inner side of the clamping portion, and its surface is adapted to the mounting groove; the clamping portion is located on the outer side of the connecting portion, and the limiting edges are the upper and lower edges on the inner side of the clamping portion, and the upper and lower edges correspond to two slideways respectively.
[0014] Furthermore, the adjacent surfaces of the left claw and the right claw are both inclined surfaces, and the inclined surfaces face each other to form a clamping form that is wide inside and narrow outside.
[0015] Furthermore, adjacent surfaces of the left claw and the right claw are also provided with transverse textures.
[0016] Furthermore, a knob is provided at one end of the threaded shaft.
[0017] Compared with the prior art, the beneficial effects achieved by the utility model are:
[0018] The utility model realizes the locking of the syringe core rod by the clamping jaws, can be adapted to various syringe models, is more widely used, and has stronger adaptability. The working surface of the clamping jaw is an inwardly inclined surface. When the clamping jaw clamps the syringe push handle, it can continuously apply an inward pulling force to the push handle end, thereby making the push handle clamped more firmly. The clamping jaw has a certain thickness, and even a syringe push handle that is very thick and has an arc transition at the root of the push handle, such as a pure glass syringe, can also be compatible with the clamping. BRIEF DESCRIPTION OF THE DRAWINGS
[0019] Figure 1 It is a schematic diagram of the structure of an embodiment of the utility model;
[0020] Figure 2 This is a schematic diagram of the clamping structure of an embodiment of the utility model;
[0021] Figure 3 This is a schematic diagram of the use of the large injection push handle in the embodiment of the utility model;
[0022] Figure 4 This is a schematic diagram of the use of a small injection push handle according to an embodiment of the utility model.
[0023] Figure 5 This is a schematic diagram of the use of the glass injection push handle according to an embodiment of the utility model.
[0024] Figure 6 It is a schematic diagram of the working surface of the clamping jaws according to an embodiment of the present utility model.
[0025] Figure 7 This is a schematic diagram of the clamping jaws of an embodiment of the utility model clamping a glass syringe.
[0026] Figure 8 It is a structural schematic diagram of a slider according to an embodiment of the utility model.
[0027] Fig. 9 It is a schematic diagram of the clamping jaw part of an embodiment of the utility model.
[0028] Fig.10 It is a schematic diagram of the working surface of the clamping jaws according to an embodiment of the present utility model.
[0029] In the figure: 1, slider, 2, clamping jaw, 3, syringe, 2-1, threaded shaft, 2-2, left jaw, 2-3, bearing fixing block, 2-4, knob, 2-5, right jaw, 2-6, inclined surface, 2-7, slideway, 2-8, mounting groove, 2-9, slot, 2-5-1, clamping part, 2-5-2, connecting part, 2-2-1, limit edge, 2-10, bolt. DETAILED DESCRIPTION
[0030] Below, the utility model is further described in conjunction with the accompanying drawings.
[0031] Reference Figure 1 and Figure 2 This embodiment is on the slider of the injection pump, and includes a threaded shaft, a clamping jaw, a bearing fixing block, a bearing and a knob; the threaded shaft has two sections of threads with opposite rotation directions, and is rotationally connected to the slider; the clamping jaw includes a left jaw and a right jaw; the left jaw and the right jaw are respectively threadedly connected to the corresponding threaded sections.
[0032] Reference Figure 8 The slider is provided with a mounting groove; the threaded shaft is rotatably connected to the mounting groove through a bearing; the inner side of the clamp extends into the mounting groove and is connected to the corresponding threaded section of the threaded shaft; the middle position of the mounting groove is a clamping groove, and a bearing fixing block fixedly connected to the clamping groove is provided at the clamping groove, and the bearing fixing block is connected to the middle position of the threaded shaft through a bearing. The bolts passing through the back of the slider lock the bearing fixing block located in the clamping groove.
[0033] Reference Fig. 9 and Fig.10 , a slideway is also provided on the slider, and a limit edge is provided on the inner surface of the clamping jaw, and the limit edge is located in the slideway and can move freely along the slideway;
[0034] The clamping claw includes a connecting part and a clamping part; wherein the connecting part is located on the inner side of the clamping part, and its surface is adapted to the mounting groove; the clamping part is located on the outer side of the connecting part, and the limiting edges are the upper and lower edges on the inner side of the clamping part, and the upper and lower edges correspond to two slideways respectively.
[0035] The adjacent surfaces of the left claw and the right claw are both inclined surfaces, and the inclined surfaces face each other to form a clamping form that is wide inside and narrow outside. The adjacent surfaces of the left claw and the right claw are also provided with transverse textures.
[0036] Reference Figure 3, Figure 4 and Figure 5 The diameters of syringe push handles of different models vary greatly. By rotating the knob, the threaded shaft (the threads at both ends are both positive and negative) rotates, further driving the two jaws to move closer to the middle position.
[0037] Reference Figure 6 The working surface of the clamp is an inward inclined surface. When the clamp clamps the syringe push handle, it can continuously apply inward pulling force to the push handle end, thereby making the push handle clamped more firmly.
[0038] Reference Figure 7 The clamping jaws have a certain thickness, and even the very thick push handle of a pure glass syringe with a rounded transition at the root of the push handle can be compatible with the clamping.
[0039] It should be understood that the above description of the specific implementation methods of this patent is only an exemplary description listed to facilitate ordinary technicians in the field to understand the patent scheme, and does not imply that the scope of protection of this patent is limited to these individual examples. Ordinary technicians in this field can fully understand the technical scheme of this patent and, without any creative work, obtain more specific implementation methods by combining technical features, replacing some technical features, adding more technical features, etc. to the examples listed in this patent. All these specific implementation methods are within the scope of the claims of this patent. Therefore, these new specific implementation methods should also be within the scope of protection of this patent.
[0040] In addition, for the purpose of simplifying the description, this patent may not list some common specific implementation schemes, which are naturally conceivable to ordinary technicians in this field after understanding the technical solution of this patent. Obviously, these solutions should also be included in the scope of protection of this patent.
Claims
1. A table-top syringe pump slider clamping structure, comprising a slider for pushing a syringe core rod; characterized in that: Also included are a threaded shaft and a clamping jaw; The threaded shaft has two sections of threads with opposite rotation directions, and is rotationally connected to the slider; the clamping jaws include a left jaw and a right jaw; the left jaw and the right jaw are respectively threadedly connected to the corresponding threaded sections.
2. A desktop syringe pump slider clamping structure according to claim 1, characterized in that: The slide block is also provided with a slideway, and the inner surface of the clamping jaws is provided with a limiting edge, which is located in the slideway and can move freely along the slideway.
3. The table-top syringe pump slider clamping structure according to claim 1, characterized in that: The slide block is provided with a mounting groove; the threaded shaft is rotatably connected to the mounting groove via a bearing; the inner side of the clamping jaw extends into the mounting groove and is connected to the corresponding threaded section of the threaded shaft.
4. The table-top syringe pump slider clamping structure according to claim 3, characterized in that: The middle position of the installation groove is a clamping groove, and a bearing fixing block fixedly connected to the clamping groove is provided at the clamping groove. The bearing fixing block is connected to the middle position of the threaded shaft through a bearing.
5. The table-top syringe pump slider clamping structure according to claim 3, characterized in that: The bearing fixing block located in the groove is locked by a bolt passing through the back of the slide.
6. The table-top syringe pump slider clamping structure according to claim 2, characterized in that: There are two slideways, which are respectively located at the upper and lower sides of the installation groove.
7. The table-top syringe pump slider clamping structure according to claim 2, characterized in that: The clamping claw includes a connecting portion and a clamping portion; wherein the connecting portion is located on the inner side of the clamping portion, and its surface is adapted to the mounting groove; the clamping portion is located on the outer side of the connecting portion, and the limiting edges are the upper and lower edges on the inner side of the clamping portion, and the upper and lower edges correspond to two slideways respectively.
8. The table-top syringe pump slider clamping structure according to claim 1, characterized in that: The adjacent surfaces of the left claw and the right claw are both inclined surfaces, and the inclined surfaces face each other to form a clamping form that is wide inside and narrow outside.
9. The table-top syringe pump slider clamping structure according to claim 1, characterized in that: The adjacent surfaces of the left claw and the right claw are also provided with transverse textures.
10. The table-top syringe pump slider clamping structure according to claim 1, characterized in that: A knob is disposed at one end of the threaded shaft.